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Comparing deliantra/server/common/map.C (file contents):
Revision 1.109 by root, Thu Jun 7 19:12:22 2007 UTC vs.
Revision 1.200 by root, Fri May 7 19:46:18 2010 UTC

1	/*	1	/*
2	* This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game.	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*	3	*
4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team	4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
6	* Copyright (©) 1992,2007 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
7	*	7	*
8	* Crossfire TRT is free software; you can redistribute it and/or modify it	8	* Deliantra is free software: you can redistribute it and/or modify it under
9	* under the terms of the GNU General Public License as published by the Free	9	* the terms of the Affero GNU General Public License as published by the
10	* Software Foundation; either version 2 of the License, or (at your option)	10	* Free Software Foundation, either version 3 of the License, or (at your
11	* any later version.	11	* option) any later version.
12	*	12	*
13	* This program is distributed in the hope that it will be useful, but	13	* This program is distributed in the hope that it will be useful,
14	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* for more details.	16	* GNU General Public License for more details.
17	*	17	*
18	* You should have received a copy of the GNU General Public License along	18	* You should have received a copy of the Affero GNU General Public License
19	* with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51	19	* and the GNU General Public License along with this program. If not, see
20	* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA	20	* <http://www.gnu.org/licenses/>.
21	*	21	*
22	* The authors can be reached via e-mail to <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
23	*/	23	*/
24		24
25	#include <unistd.h>	25	#include <unistd.h>
26		26
27	#include "global.h"	27	#include "global.h"
28	#include "funcpoint.h"
29
30	#include "loader.h"
31
32	#include "path.h"	28	#include "path.h"
33		29
34	/*	30	//+GPL
35	* This makes a path absolute outside the world of Crossfire.
36	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
37	* and returns the pointer to a static array containing the result.
38	* it really should be called create_mapname
39	*/
40	const char *
41	create_pathname (const char *name)
42	{
43	static char buf[8192];
44	snprintf (buf, sizeof (buf), "%s/%s/%s", settings.datadir, settings.mapdir, name);
45	return buf;
46	}
47		31
48	/*	32	sint8 maptile::outdoor_darkness;
49	* This function checks if a file with the given path exists.
50	* -1 is returned if it fails, otherwise the mode of the file
51	* is returned.
52	* It tries out all the compression suffixes listed in the uncomp[] array.
53	*
54	* If prepend_dir is set, then we call create_pathname (which prepends
55	* libdir & mapdir). Otherwise, we assume the name given is fully
56	* complete.
57	* Only the editor actually cares about the writablity of this -
58	* the rest of the code only cares that the file is readable.
59	* when the editor goes away, the call to stat should probably be
60	* replaced by an access instead (similar to the windows one, but
61	* that seems to be missing the prepend_dir processing
62	*/
63	int
64	check_path (const char *name, int prepend_dir)
65	{
66	char buf[MAX_BUF];
67
68	char *endbuf;
69	struct stat statbuf;
70	int mode = 0;
71
72	if (prepend_dir)
73	assign (buf, create_pathname (name));
74	else
75	assign (buf, name);
76
77	/* old method (strchr(buf, '\0')) seemd very odd to me -
78	* this method should be equivalant and is clearer.
79	* Can not use strcat because we need to cycle through
80	* all the names.
81	*/
82	endbuf = buf + strlen (buf);
83
84	if (stat (buf, &statbuf))
85	return -1;
86	if (!S_ISREG (statbuf.st_mode))
87	return (-1);
88
89	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
90	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
91	mode |= 4;
92
93	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
94	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
95	mode |= 2;
96
97	return (mode);
98	}
99		33
100	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	34	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
101	* one function that just returns a P_.. value (see map.h)	35	* one function that just returns a P_.. value (see map.h)
102	* it will also do map translation for tiled maps, returning	36	* it will also do map translation for tiled maps, returning
103	* 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
…		…
138	* by the caller.	72	* by the caller.
139	*/	73	*/
140	int	74	int
141	blocked_link (object *ob, maptile *m, int sx, int sy)	75	blocked_link (object *ob, maptile *m, int sx, int sy)
142	{	76	{
143	object *tmp;
144	int mflags, blocked;
145
146	/* 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
147	* have already checked this.	78	* have already checked this.
148	*/	79	*/
149	if (OUT_OF_REAL_MAP (m, sx, sy))	80	if (OUT_OF_REAL_MAP (m, sx, sy))
150	{	81	{
151	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");
152	return 1;	83	return 1;
153	}	84	}
154		85
155	/* Save some cycles - instead of calling get_map_flags(), just get the value	86	mapspace &ms = m->at (sx, sy);
156	* directly.
157	*/
158	mflags = m->at (sx, sy).flags ();
159		87
160	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	88	int mflags = ms.flags ();
		89	int blocked = ms.move_block;
161		90
162	/* If space is currently not blocked by anything, no need to	91	/* If space is currently not blocked by anything, no need to
163	* go further. Not true for players - all sorts of special	92	* go further. Not true for players - all sorts of special
164	* things we need to do for players.	93	* things we need to do for players.
165	*/	94	*/
166	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	95	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && blocked == 0)
167	return 0;	96	return 0;
168		97
169	/* 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
170	* 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
171	* 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
172	* or another. Likewise, only if something is blocking us do we	101	* or another. Likewise, only if something is blocking us do we
173	* need to investigate if there is a special circumstance that would	102	* need to investigate if there is a special circumstance that would
174	* let the player through (inventory checkers for example)	103	* let the player through (inventory checkers for example)
…		…
181	/* 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
182	* 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
183	* true. If we get through the entire stack, that must mean	112	* true. If we get through the entire stack, that must mean
184	* ob is blocking it, so return 0.	113	* ob is blocking it, so return 0.
185	*/	114	*/
186	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	115	for (object *tmp = ms.top; tmp; tmp = tmp->below)
187	{	116	{
188		117	if (OB_MOVE_BLOCK (ob, tmp))
189	/* This must be before the checks below. Code for inventory checkers. */
190	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
191	{	118	{
192	/* If last_sp is set, the player/monster needs an object,	119	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
193	* so we check for it. If they don't have it, they can't	120	if (RESULT_INT (0))
194	* pass through this space.	121	return 1;
195	*/	122	else
196	if (tmp->last_sp)	123	continue;
		124
		125	if (tmp->type == CHECK_INV)
197	{	126	{
198	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))
199	return 1;	131	return 1;
200	else	132	}
201	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;
202	}	142	}
203	else	143	else
204	{	144	return 1; // unconditional block
205	/* In this case, the player must not have the object -	145
206	* if they do, they can't pass through.
207	*/
208	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
209	return 1;
210	else
211	continue;
212	}
213	} /* if check_inv */
214	else	146	} else {
215	{	147	// space does not block the ob, directly, but
216	/* Broke apart a big nasty if into several here to make	148	// anything alive that is not a door still
217	* this more readable. first check - if the space blocks	149	// blocks anything
218	* movement, can't move here.
219	* second - if a monster, can't move there, unless it is a
220	* hidden dm
221	*/
222	if (OB_MOVE_BLOCK (ob, tmp))
223	return 1;
224		150
225	if (tmp->flag [FLAG_ALIVE]	151	if (tmp->flag [FLAG_ALIVE]
226	&& tmp->head_ () != ob
227	&& tmp != ob
228	&& tmp->type != DOOR	152	&& tmp->type != DOOR
229	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))	153	&& tmp->head_ () != ob) //TODO: maybe move these check up?
230	return 1;	154	return 1;
231	}	155	}
232
233	}	156	}
		157
234	return 0;	158	return 0;
235	}	159	}
236		160
237	/*	161	/*
238	* 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
239	* This is meant for multi space objects - for single space objecs,	163	* spot. This is meant for multi space objects - for single space objecs,
240	* just calling get_map_blocked and checking that against movement type	164	* just calling get_map_blocked and checking that against movement type
241	* of object. This function goes through all the parts of the	165	* of object. This function goes through all the parts of the multipart
242	* multipart object and makes sure they can be inserted.	166	* object and makes sure they can be inserted.
243	*	167	*
244	* 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.
245	*	169	*
246	* This function has been used to deprecate arch_out_of_map -	170	* This function has been used to deprecate arch_out_of_map -
247	* this function also does that check, and since in most cases,	171	* this function also does that check, and since in most cases,
…		…
258	*	182	*
259	* Note this used to be arch_blocked, but with new movement	183	* Note this used to be arch_blocked, but with new movement
260	* 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
261	* against the move_block values.	185	* against the move_block values.
262	*/	186	*/
263	int	187	bool
264	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	188	object::blocked (maptile *m, int x, int y) const
265	{	189	{
266	archetype *tmp;	190	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
267	int flag;
268	maptile *m1;
269	sint16 sx, sy;
270
271	if (!ob)
272	{
273	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
274	if (flag & P_OUT_OF_MAP)
275	return P_OUT_OF_MAP;
276
277	/* don't have object, so don't know what types would block */
278	return m1->at (sx, sy).move_block;
279	}	191	{
		192	mapxy pos (m, x + tmp->x, y + tmp->y);
280		193
281	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)	194	if (!pos.normalise ())
282	{	195	return 1;
283	flag = get_map_flags (m, &m1, x + tmp->x, y + tmp->y, &sx, &sy);
284		196
285	if (flag & P_OUT_OF_MAP)	197	mapspace &ms = *pos;
286	return P_OUT_OF_MAP;	198
287	if (flag & P_IS_ALIVE)	199	if (ms.flags () & P_IS_ALIVE)
288	return P_IS_ALIVE;	200	return 1;
289		201
290	mapspace &ms = m1->at (sx, sy);	202	/* However, often ob doesn't have any move type
291		203	* (signifying non-moving objects)
292	/* find_first_free_spot() calls this function. However, often
293	* ob doesn't have any move type (when used to place exits)
294	* 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.
295	*/	205	*/
296
297	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)	206	if (!move_type && ms.move_block != MOVE_ALL)
298	continue;	207	continue;
299		208
300	/* 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
301	* head of the object should correspond for the entire object.	210	* head of the object should correspond for the entire object.
302	*/	211	*/
303	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))	212	if (ms.blocks (move_type))
304	return P_NO_PASS;	213	return 1;
305	}	214	}
306		215
307	return 0;	216	return 0;
308	}	217	}
309		218
310	/* When the map is loaded, load_object does not actually insert objects	219	//-GPL
311	* into inventory, but just links them. What this does is go through
312	* and insert them properly.
313	* The object 'container' is the object that contains the inventory.
314	* This is needed so that we can update the containers weight.
315	*/
316	void
317	fix_container (object *container)
318	{
319	object *tmp = container->inv, *next;
320
321	container->inv = 0;
322	while (tmp)
323	{
324	next = tmp->below;
325	if (tmp->inv)
326	fix_container (tmp);
327
328	insert_ob_in_ob (tmp, container);
329	tmp = next;
330	}
331
332	/* sum_weight will go through and calculate what all the containers are
333	* carrying.
334	*/
335	sum_weight (container);
336	}
337		220
338	void	221	void
339	maptile::set_object_flag (int flag, int value)	222	maptile::set_object_flag (int flag, int value)
340	{	223	{
341	if (!spaces)	224	if (!spaces)
…		…
343		226
344	for (mapspace *ms = spaces + size (); ms-- > spaces; )	227	for (mapspace *ms = spaces + size (); ms-- > spaces; )
345	for (object *tmp = ms->bot; tmp; tmp = tmp->above)	228	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
346	tmp->flag [flag] = value;	229	tmp->flag [flag] = value;
347	}	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
348		259
349	/* 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
350	* 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
351	* 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
352	* they are saved).	263	* they are saved).
…		…
356	{	267	{
357	if (!spaces)	268	if (!spaces)
358	return;	269	return;
359		270
360	for (mapspace *ms = spaces + size (); ms-- > spaces; )	271	for (mapspace *ms = spaces + size (); ms-- > spaces; )
361	for (object *op = ms->bot; op; op = op->above)	272	{
		273	object *op = ms->bot;
		274	while (op)
362	{	275	{
363	/* already multipart - don't do anything more */	276	/* already multipart - don't do anything more */
364	if (op->head_ () == op && !op->more && op->arch->more)	277	if (op->head_ () == op && !op->more && op->arch->more)
365	{	278	{
366	op->remove ();	279	op->remove ();
367	op->expand_tail ();	280	op->expand_tail ();
		281
		282	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
		283	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
		284	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
368	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	285	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
		286
		287	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
		288	// so we have to reset the iteration through the mapspace
369	}	289	}
		290	else
		291	op = op->above;
370	}	292	}
		293	}
371	}	294	}
		295
		296	//-GPL
372		297
373	/*	298	/*
374	* 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
375	* file pointer.	300	* file pointer.
376	*/	301	*/
377	bool	302	bool
378	maptile::_load_objects (object_thawer &f)	303	maptile::_load_objects (object_thawer &f)
379	{	304	{
380	for (;;)	305	for (;;)
381	{	306	{
382	coroapi::cede_to_tick_every (100); // cede once in a while	307	coroapi::cede_to_tick (); // cede once in a while
383		308
384	switch (f.kw)	309	switch (f.kw)
385	{	310	{
386	case KW_arch:	311	case KW_arch:
387	if (object *op = object::read (f, this))	312	if (object *op = object::read (f, this))
388	{	313	{
		314	// TODO: why?
389	if (op->inv)	315	if (op->inv)
		316	{
		317	op->carrying = 0;
390	sum_weight (op);	318	op->update_weight ();
		319	}
391		320
392	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	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	}
393	}	344	}
394		345
395	continue;	346	continue;
396		347
397	case KW_EOF:	348	case KW_EOF:
…		…
410	}	361	}
411		362
412	void	363	void
413	maptile::activate ()	364	maptile::activate ()
414	{	365	{
415	active = true;
416
417	if (spaces)	366	if (spaces)
418	for (mapspace *ms = spaces + size (); ms-- > spaces; )	367	for (mapspace *ms = spaces + size (); ms-- > spaces; )
419	for (object *op = ms->bot; op; op = op->above)	368	for (object *op = ms->bot; op; op = op->above)
420	op->activate_recursive ();	369	op->activate_recursive ();
421	}	370	}
422		371
423	void	372	void
424	maptile::deactivate ()	373	maptile::deactivate ()
425	{	374	{
426	active = false;
427
428	if (spaces)	375	if (spaces)
429	for (mapspace *ms = spaces + size (); ms-- > spaces; )	376	for (mapspace *ms = spaces + size (); ms-- > spaces; )
430	for (object *op = ms->bot; op; op = op->above)	377	for (object *op = ms->bot; op; op = op->above)
431	op->deactivate_recursive ();	378	op->deactivate_recursive ();
432	}	379	}
…		…
442	if (!spaces)	389	if (!spaces)
443	return false;	390	return false;
444		391
445	for (int i = 0; i < size (); ++i)	392	for (int i = 0; i < size (); ++i)
446	{	393	{
447	int unique = 0;	394	bool unique = 0;
		395
448	for (object *op = spaces [i].bot; op; op = op->above)	396	for (object *op = spaces [i].bot; op; op = op->above)
449	{	397	{
450	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])	398	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
451	unique = 1;
452		399
453	if (!op->can_map_save ())	400	if (expect_false (!op->can_map_save ()))
454	continue;	401	continue;
455		402
456	if (unique || op->flag [FLAG_UNIQUE])	403	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
457	{	404	{
458	if (flags & IO_UNIQUES)	405	if (flags & IO_UNIQUES)
459	op->write (f);	406	op->write (f);
460	}	407	}
461	else if (flags & IO_OBJECTS)	408	else if (expect_true (flags & IO_OBJECTS))
462	op->write (f);	409	op->write (f);
463	}	410	}
464	}	411	}
465		412
466	coroapi::cede_to_tick ();	413	coroapi::cede_to_tick ();
467		414
468	return true;	415	return true;
469	}	416	}
470		417
471	bool	418	bool
472	maptile::_load_objects (const char *path, bool skip_header)
473	{
474	object_thawer f (path);
475
476	if (!f)
477	return false;
478
479	f.next ();
480
481	if (skip_header)
482	for (;;)
483	{
484	keyword kw = f.kw;
485	f.skip ();
486	if (kw == KW_end)
487	break;
488	}
489
490	return _load_objects (f);
491	}
492
493	bool
494	maptile::_save_objects (const char *path, int flags)	419	maptile::_save_objects (const char *path, int flags)
495	{	420	{
496	object_freezer freezer;	421	object_freezer freezer;
497		422
498	if (!_save_objects (freezer, flags))	423	if (!_save_objects (freezer, flags))
499	return false;	424	return false;
500		425
501	return freezer.save (path);	426	return freezer.save (path);
502	}	427	}
503		428
504	maptile::maptile ()	429	void
		430	maptile::init ()
505	{	431	{
506	in_memory = MAP_SWAPPED;	432	in_memory = MAP_SWAPPED;
507		433
508	/* The maps used to pick up default x and y values from the	434	/* The maps used to pick up default x and y values from the
509	* map archetype. Mimic that behaviour.	435	* map archetype. Mimic that behaviour.
510	*/	436	*/
511	width = 16;	437	width = 16;
512	height = 16;	438	height = 16;
513	timeout = 300;	439	timeout = 300;
514	max_nrof = 1000; // 1000 items of anything	440	max_items = MAX_ITEM_PER_ACTION;
515	max_volume = 2000000; // 2m³	441	max_volume = 2000000; // 2m³
516	}
517
518	maptile::maptile (int w, int h)
519	{
520	in_memory = MAP_SWAPPED;
521
522	width = w;
523	height = h;
524	reset_timeout = 0;	442	reset_timeout = 0;
525	timeout = 300;
526	enter_x = 0;	443	enter_x = 0;
527	enter_y = 0;	444	enter_y = 0;
		445	}
		446
		447	maptile::maptile ()
		448	{
		449	init ();
		450	}
		451
		452	maptile::maptile (int w, int h)
		453	{
		454	init ();
		455
		456	width = w;
		457	height = h;
528		458
529	alloc ();	459	alloc ();
530	}	460	}
531		461
532	/*	462	/*
…		…
540	if (spaces)	470	if (spaces)
541	return;	471	return;
542		472
543	spaces = salloc0<mapspace> (size ());	473	spaces = salloc0<mapspace> (size ());
544	}	474	}
		475
		476	//+GPL
545		477
546	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	478	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
547	* corresponding to that string. Memory is allocated for this, it must be freed	479	* corresponding to that string. Memory is allocated for this, it must be freed
548	* at a later date.	480	* at a later date.
549	* Called by parse_map_headers below.	481	* Called by parse_map_headers below.
…		…
626	return items;	558	return items;
627	}	559	}
628		560
629	/* opposite of parse string, this puts the string that was originally fed in to	561	/* opposite of parse string, this puts the string that was originally fed in to
630	* the map (or something equivilent) into output_string. */	562	* the map (or something equivilent) into output_string. */
631	static void	563	static const char *
632	print_shop_string (maptile *m, char *output_string)	564	print_shop_string (maptile *m)
633	{	565	{
634	int i;	566	static dynbuf_text buf; buf.clear ();
635	char tmp[MAX_BUF];	567	bool first = true;
636		568
637	strcpy (output_string, "");
638	for (i = 0; i < m->shopitems[0].index; i++)	569	for (int i = 0; i < m->shopitems[0].index; i++)
639	{	570	{
		571	if (!first)
		572	buf << ';';
		573
		574	first = false;
		575
640	if (m->shopitems[i].typenum)	576	if (m->shopitems[i].typenum)
641	{	577	{
642	if (m->shopitems[i].strength)	578	if (m->shopitems[i].strength)
643	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	579	buf.printf ("%s:%d", m->shopitems[i].name, m->shopitems[i].strength);
644	else	580	else
645	sprintf (tmp, "%s;", m->shopitems[i].name);	581	buf.printf ("%s", m->shopitems[i].name);
646	}	582	}
647	else	583	else
648	{	584	{
649	if (m->shopitems[i].strength)	585	if (m->shopitems[i].strength)
650	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	586	buf.printf ("*:%d", m->shopitems[i].strength);
651	else	587	else
652	sprintf (tmp, "*");	588	buf.printf ("*");
653	}	589	}
654
655	strcat (output_string, tmp);
656	}	590	}
		591
		592	return buf;
657	}	593	}
		594
		595	//-GPL
658		596
659	/* This loads the header information of the map. The header	597	/* This loads the header information of the map. The header
660	* contains things like difficulty, size, timeout, etc.	598	* contains things like difficulty, size, timeout, etc.
661	* this used to be stored in the map object, but with the	599	* this used to be stored in the map object, but with the
662	* addition of tiling, fields beyond that easily named in an	600	* addition of tiling, fields beyond that easily named in an
…		…
670	bool	608	bool
671	maptile::_load_header (object_thawer &thawer)	609	maptile::_load_header (object_thawer &thawer)
672	{	610	{
673	for (;;)	611	for (;;)
674	{	612	{
675	thawer.next ();
676
677	switch (thawer.kw)	613	switch (thawer.kw)
678	{	614	{
679	case KW_msg:	615	case KW_msg:
680	thawer.get_ml (KW_endmsg, msg);	616	thawer.get_ml (KW_endmsg, msg);
681	break;	617	break;
…		…
705	case KW_shopgreed: thawer.get (shopgreed); break;	641	case KW_shopgreed: thawer.get (shopgreed); break;
706	case KW_shopmin: thawer.get (shopmin); break;	642	case KW_shopmin: thawer.get (shopmin); break;
707	case KW_shopmax: thawer.get (shopmax); break;	643	case KW_shopmax: thawer.get (shopmax); break;
708	case KW_shoprace: thawer.get (shoprace); break;	644	case KW_shoprace: thawer.get (shoprace); break;
709	case KW_outdoor: thawer.get (outdoor); break;	645	case KW_outdoor: thawer.get (outdoor); break;
710	case KW_temp: thawer.get (temp); break;
711	case KW_pressure: thawer.get (pressure); break;
712	case KW_humid: thawer.get (humid); break;
713	case KW_windspeed: thawer.get (windspeed); break;
714	case KW_winddir: thawer.get (winddir); break;
715	case KW_sky: thawer.get (sky); break;
716		646
717	case KW_per_player: thawer.get (per_player); break;	647	case KW_per_player: thawer.get (per_player); break;
718	case KW_per_party: thawer.get (per_party); break;	648	case KW_per_party: thawer.get (per_party); break;
719	case KW_no_reset: thawer.get (no_reset); break;	649	case KW_no_reset: thawer.get (no_reset); break;
		650	case KW_no_drop: thawer.get (no_drop); break;
720		651
721	case KW_region: default_region = region::find (thawer.get_str ()); break;	652	case KW_region: thawer.get (default_region); break;
722	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;	653	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
723		654
724	// old names new names	655	// old names new names
725	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;	656	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
726	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;	657	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
…		…
735	case KW_tile_path_1: thawer.get (tile_path [0]); break;	666	case KW_tile_path_1: thawer.get (tile_path [0]); break;
736	case KW_tile_path_2: thawer.get (tile_path [1]); break;	667	case KW_tile_path_2: thawer.get (tile_path [1]); break;
737	case KW_tile_path_3: thawer.get (tile_path [2]); break;	668	case KW_tile_path_3: thawer.get (tile_path [2]); break;
738	case KW_tile_path_4: thawer.get (tile_path [3]); break;	669	case KW_tile_path_4: thawer.get (tile_path [3]); break;
739		670
		671	case KW_ERROR:
		672	set_key_text (thawer.kw_str, thawer.value);
		673	break;
		674
740	case KW_end:	675	case KW_end:
		676	thawer.next ();
741	return true;	677	return true;
742		678
743	default:	679	default:
744	if (!thawer.parse_error ("map", 0))	680	if (!thawer.parse_error ("map"))
745	return false;	681	return false;
746	break;	682	break;
747	}	683	}
		684
		685	thawer.next ();
748	}	686	}
749		687
750	abort ();	688	abort ();
751	}	689	}
752		690
753	bool	691	//+GPL
754	maptile::_load_header (const char *path)
755	{
756	object_thawer thawer (path);
757
758	if (!thawer)
759	return false;
760
761	return _load_header (thawer);
762	}
763		692
764	/******************************************************************************	693	/******************************************************************************
765	* This is the start of unique map handling code	694	* This is the start of unique map handling code
766	*****************************************************************************/	695	*****************************************************************************/
767		696
…		…
774	int unique = 0;	703	int unique = 0;
775	for (object *op = spaces [i].bot; op; )	704	for (object *op = spaces [i].bot; op; )
776	{	705	{
777	object *above = op->above;	706	object *above = op->above;
778		707
779	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	708	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
780	unique = 1;	709	unique = 1;
781		710
782	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	711	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
783	{
784	op->destroy_inv (false);
785	op->destroy ();	712	op->destroy ();
786	}
787		713
788	op = above;	714	op = above;
789	}	715	}
790	}	716	}
791	}	717	}
792		718
		719	//-GPL
		720
793	bool	721	bool
794	maptile::_save_header (object_freezer &freezer)	722	maptile::_save_header (object_freezer &freezer)
795	{	723	{
796	#define MAP_OUT(k) freezer.put (KW_ ## k, k)	724	#define MAP_OUT(k) freezer.put (KW(k), k)
797	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)	725	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
798		726
799	MAP_OUT2 (arch, "map");	727	MAP_OUT2 (arch, CS(map));
800		728
801	if (name) MAP_OUT (name);	729	if (name) MAP_OUT (name);
802	MAP_OUT (swap_time);	730	MAP_OUT (swap_time);
803	MAP_OUT (reset_time);	731	MAP_OUT (reset_time);
804	MAP_OUT (reset_timeout);	732	MAP_OUT (reset_timeout);
805	MAP_OUT (fixed_resettime);	733	MAP_OUT (fixed_resettime);
806	MAP_OUT (no_reset);	734	MAP_OUT (no_reset);
		735	MAP_OUT (no_drop);
807	MAP_OUT (difficulty);	736	MAP_OUT (difficulty);
808
809	if (default_region) MAP_OUT2 (region, default_region->name);	737	if (default_region) MAP_OUT2 (region, default_region->name);
810		738
811	if (shopitems)	739	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
812	{
813	char shop[MAX_BUF];
814	print_shop_string (this, shop);
815	MAP_OUT2 (shopitems, shop);
816	}
817
818	MAP_OUT (shopgreed);	740	MAP_OUT (shopgreed);
819	MAP_OUT (shopmin);	741	MAP_OUT (shopmin);
820	MAP_OUT (shopmax);	742	MAP_OUT (shopmax);
821	if (shoprace) MAP_OUT (shoprace);	743	if (shoprace) MAP_OUT (shoprace);
822	MAP_OUT (darkness);	744
823	MAP_OUT (width);	745	MAP_OUT (width);
824	MAP_OUT (height);	746	MAP_OUT (height);
825	MAP_OUT (enter_x);	747	MAP_OUT (enter_x);
826	MAP_OUT (enter_y);	748	MAP_OUT (enter_y);
827		749	MAP_OUT (darkness);
828	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
829	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
830
831	MAP_OUT (outdoor);	750	MAP_OUT (outdoor);
832	MAP_OUT (temp);	751
833	MAP_OUT (pressure);	752	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
834	MAP_OUT (humid);	753	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
835	MAP_OUT (windspeed);
836	MAP_OUT (winddir);
837	MAP_OUT (sky);
838		754
839	MAP_OUT (per_player);	755	MAP_OUT (per_player);
840	MAP_OUT (per_party);	756	MAP_OUT (per_party);
841		757
842	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);	758	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
843	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);	759	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
844	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);	760	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
845	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);	761	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
846		762
847	freezer.put (this);	763	freezer.put (this);
848	freezer.put (KW_end);	764	freezer.put (KW(end));
849		765
850	return true;	766	return true;
851	}	767	}
852		768
853	bool	769	bool
…		…
859	return false;	775	return false;
860		776
861	return freezer.save (path);	777	return freezer.save (path);
862	}	778	}
863		779
		780	//+GPL
		781
864	/*	782	/*
865	* Remove and free all objects in the given map.	783	* Remove and free all objects in the given map.
866	*/	784	*/
867	void	785	void
868	maptile::clear ()	786	maptile::clear ()
869	{	787	{
870	sfree (regions, size ()), regions = 0;
871	free (regionmap), regionmap = 0;
872
873	if (spaces)	788	if (spaces)
874	{	789	{
875	for (mapspace *ms = spaces + size (); ms-- > spaces; )	790	for (mapspace *ms = spaces + size (); ms-- > spaces; )
876	while (object *op = ms->bot)	791	while (object *op = ms->bot)
877	{	792	{
		793	// manually remove, as to not trigger anything
		794	if (ms->bot = op->above)
		795	ms->bot->below = 0;
		796
		797	op->flag [FLAG_REMOVED] = true;
		798
878	op = op->head_ ();	799	object *head = op->head_ ();
879	op->destroy_inv (false);	800	if (op == head)
880	op->destroy ();	801	op->destroy ();
		802	else if (head->map != op->map)
		803	{
		804	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
		805	head->destroy ();
		806	}
881	}	807	}
882		808
883	sfree (spaces, size ()), spaces = 0;	809	sfree0 (spaces, size ());
884	}	810	}
885		811
886	if (buttons)	812	if (buttons)
887	free_objectlinkpt (buttons), buttons = 0;	813	free_objectlinkpt (buttons), buttons = 0;
		814
		815	sfree0 (regions, size ());
		816	delete [] regionmap; regionmap = 0;
888	}	817	}
889		818
890	void	819	void
891	maptile::clear_header ()	820	maptile::clear_header ()
892	{	821	{
…		…
925		854
926	clear ();	855	clear ();
927	}	856	}
928		857
929	/* decay and destroy perishable items in a map */	858	/* decay and destroy perishable items in a map */
		859	// TODO: should be done regularly, not on map load?
930	void	860	void
931	maptile::do_decay_objects ()	861	maptile::do_decay_objects ()
932	{	862	{
933	if (!spaces)	863	if (!spaces)
934	return;	864	return;
…		…
936	for (mapspace *ms = spaces + size (); ms-- > spaces; )	866	for (mapspace *ms = spaces + size (); ms-- > spaces; )
937	for (object *above, *op = ms->bot; op; op = above)	867	for (object *above, *op = ms->bot; op; op = above)
938	{	868	{
939	above = op->above;	869	above = op->above;
940		870
		871	// do not decay anything above unique floor tiles (yet :)
		872	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		873	break;
		874
941	bool destroy = 0;	875	bool destroy = 0;
942		876
943	// do not decay anything above unique floor tiles (yet :)	877	if (op->flag [FLAG_IS_FLOOR]
944	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	878	|| op->flag [FLAG_OBJ_ORIGINAL]
945	break;	879	|| op->flag [FLAG_UNIQUE]
946		880	|| op->flag [FLAG_OVERLAY_FLOOR]
947	if (QUERY_FLAG (op, FLAG_IS_FLOOR)	881	|| op->flag [FLAG_UNPAID]
948	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
949	|| QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
950	|| QUERY_FLAG (op, FLAG_UNIQUE)
951	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
952	|| QUERY_FLAG (op, FLAG_UNPAID)
953	|| op->is_alive ())	882	|| op->is_alive ())
954	; // do not decay	883	; // do not decay
955	else if (op->is_weapon ())	884	else if (op->is_weapon ())
956	{	885	{
957	op->stats.dam--;	886	op->stats.dam--;
…		…
982	|| mat & M_LIQUID	911	|| mat & M_LIQUID
983	|| (mat & M_IRON && rndm (1, 5) == 1)	912	|| (mat & M_IRON && rndm (1, 5) == 1)
984	|| (mat & M_GLASS && rndm (1, 2) == 1)	913	|| (mat & M_GLASS && rndm (1, 2) == 1)
985	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)	914	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
986	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)	915	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
987	|| (mat & M_ICE && temp > 32))	916	//|| (mat & M_ICE && temp > 32)
		917	)
988	destroy = 1;	918	destroy = 1;
989	}	919	}
990		920
991	/* adjust overall chance below */	921	/* adjust overall chance below */
992	if (destroy && rndm (0, 1))	922	if (destroy && rndm (0, 1))
993	op->destroy ();	923	op->destroy ();
994	}
995	}
996
997	/*
998	* Updates every button on the map (by calling update_button() for them).
999	*/
1000	void
1001	maptile::update_buttons ()
1002	{
1003	for (oblinkpt *obp = buttons; obp; obp = obp->next)
1004	for (objectlink *ol = obp->link; ol; ol = ol->next)
1005	{
1006	if (!ol->ob)
1007	{
1008	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
1009	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
1010	continue;
1011	}
1012
1013	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1014	{
1015	update_button (ol->ob);
1016	break;
1017	}
1018	}	924	}
1019	}	925	}
1020		926
1021	/*	927	/*
1022	* This routine is supposed to find out the difficulty of the map.	928	* This routine is supposed to find out the difficulty of the map.
1023	* difficulty does not have a lot to do with character level,	929	* difficulty does not have a lot to do with character level,
1024	* but does have a lot to do with treasure on the map.	930	* but does have a lot to do with treasure on the map.
1025	*	931	*
1026	* Difficulty can now be set by the map creature. If the value stored	932	* Difficulty can now be set by the map creator. If the value stored
1027	* in the map is zero, then use this routine. Maps should really	933	* in the map is zero, then use this routine. Maps should really
1028	* have a difficulty set than using this function - human calculation	934	* have a difficulty set rather than using this function - human calculation
1029	* is much better than this functions guesswork.	935	* is much better than this function's guesswork.
1030	*/	936	*/
1031	int	937	int
1032	maptile::estimate_difficulty () const	938	maptile::estimate_difficulty () const
1033	{	939	{
1034	long monster_cnt = 0;	940	long monster_cnt = 0;
…		…
1036	sint64 total_exp = 0;	942	sint64 total_exp = 0;
1037		943
1038	for (mapspace *ms = spaces + size (); ms-- > spaces; )	944	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1039	for (object *op = ms->bot; op; op = op->above)	945	for (object *op = ms->bot; op; op = op->above)
1040	{	946	{
1041	if (QUERY_FLAG (op, FLAG_MONSTER))	947	if (op->flag [FLAG_MONSTER])
1042	{	948	{
1043	total_exp += op->stats.exp;	949	total_exp += op->stats.exp;
1044	monster_cnt++;	950	monster_cnt++;
1045	}	951	}
1046		952
1047	if (QUERY_FLAG (op, FLAG_GENERATOR))	953	if (op->flag [FLAG_GENERATOR])
1048	{	954	{
1049	total_exp += op->stats.exp;	955	total_exp += op->stats.exp;
1050		956
1051	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))	957	if (archetype *at = op->other_arch)
		958	{
1052	total_exp += at->stats.exp * 8;	959	total_exp += at->stats.exp * 8;
1053
1054	monster_cnt++;	960	monster_cnt++;
		961	}
		962
		963	for (object *inv = op->inv; inv; inv = inv->below)
		964	{
		965	total_exp += op->stats.exp * 8;
		966	monster_cnt++;
		967	}
1055	}	968	}
1056	}	969	}
1057		970
1058	avgexp = (double) total_exp / monster_cnt;	971	avgexp = (double) total_exp / monster_cnt;
1059		972
…		…
1072	* postive values make it darker, negative make it brighter	985	* postive values make it darker, negative make it brighter
1073	*/	986	*/
1074	int	987	int
1075	maptile::change_map_light (int change)	988	maptile::change_map_light (int change)
1076	{	989	{
1077	int new_level = darkness + change;
1078
1079	/* Nothing to do */	990	/* Nothing to do */
1080	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))	991	if (!change)
1081	return 0;	992	return 0;
1082		993
1083	/* inform all players on the map */	994	/* inform all players on the map */
1084	if (change > 0)	995	if (change > 0)
1085	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");	996	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1086	else	997	else
1087	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");	998	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1088		999
1089	/* Do extra checking. since darkness is a unsigned value,	1000	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1090	* we need to be extra careful about negative values.
1091	* In general, the checks below are only needed if change
1092	* is not +/-1
1093	*/
1094	if (new_level < 0)
1095	darkness = 0;
1096	else if (new_level >= MAX_DARKNESS)
1097	darkness = MAX_DARKNESS;
1098	else
1099	darkness = new_level;
1100		1001
1101	/* All clients need to get re-updated for the change */	1002	/* All clients need to get re-updated for the change */
1102	update_all_map_los (this);	1003	update_all_map_los (this);
		1004
1103	return 1;	1005	return 1;
1104	}	1006	}
1105		1007
1106	/*	1008	/*
1107	* This function updates various attributes about a specific space	1009	* This function updates various attributes about a specific space
…		…
1110	* through, etc)	1012	* through, etc)
1111	*/	1013	*/
1112	void	1014	void
1113	mapspace::update_ ()	1015	mapspace::update_ ()
1114	{	1016	{
1115	object *tmp, *last = 0;	1017	object *last = 0;
1116	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;	1018	uint8 flags = P_UPTODATE;
		1019	sint8 light = 0;
1117	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1020	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1021	uint64_t volume = 0;
		1022	uint32_t items = 0;
		1023	object *anywhere = 0;
		1024	uint8_t middle_visibility = 0;
1118		1025
1119	//object *middle = 0;	1026	//object *middle = 0;
1120	//object *top = 0;	1027	//object *top = 0;
1121	//object *floor = 0;	1028	//object *floor = 0;
1122	// this seems to generate better code than using locals, above	1029	// this seems to generate better code than using locals, above
1123	object *&top = faces_obj[0] = 0;	1030	object *&top = faces_obj[0] = 0;
1124	object *&middle = faces_obj[1] = 0;	1031	object *&middle = faces_obj[1] = 0;
1125	object *&floor = faces_obj[2] = 0;	1032	object *&floor = faces_obj[2] = 0;
1126		1033
		1034	object::flags_t allflags; // all flags of all objects or'ed together
		1035
1127	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1036	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1128	{	1037	{
1129	/* This could be made additive I guess (two lights better than	1038	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1130	* one). But if so, it shouldn't be a simple additive - 2
1131	* light bulbs do not illuminate twice as far as once since
1132	* it is a dissapation factor that is cubed.
1133	*/
1134	if (tmp->glow_radius > light)
1135	light = tmp->glow_radius;	1039	light += tmp->glow_radius;
1136		1040
1137	/* This call is needed in order to update objects the player	1041	/* This call is needed in order to update objects the player
1138	* is standing in that have animations (ie, grass, fire, etc).	1042	* is standing in that have animations (ie, grass, fire, etc).
1139	* However, it also causes the look window to be re-drawn	1043	* However, it also causes the look window to be re-drawn
1140	* 3 times each time the player moves, because many of the	1044	* 3 times each time the player moves, because many of the
1141	* functions the move_player calls eventualy call this.	1045	* functions the move_player calls eventualy call this.
1142	*	1046	*
1143	* Always put the player down for drawing.	1047	* Always put the player down for drawing.
1144	*/	1048	*/
1145	if (!tmp->invisible)	1049	if (expect_true (!tmp->invisible))
1146	{	1050	{
1147	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1051	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1148	top = tmp;	1052	top = tmp;
1149	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1053	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1150	{	1054	{
1151	/* If we got a floor, that means middle and top were below it,	1055	/* If we got a floor, that means middle and top were below it,
1152	* so should not be visible, so we clear them.	1056	* so should not be visible, so we clear them.
1153	*/	1057	*/
1154	middle = 0;	1058	middle = 0;
1155	top = 0;	1059	top = 0;
1156	floor = tmp;	1060	floor = tmp;
		1061	volume = 0;
		1062	items = 0;
1157	}	1063	}
1158	/* Flag anywhere have high priority */	1064	else
1159	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1160	{	1065	{
		1066	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1067	{
		1068	++items;
		1069	volume += tmp->volume ();
		1070	}
		1071
		1072	/* Flag anywhere have high priority */
		1073	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
		1074	anywhere = tmp;
		1075
		1076	/* Find the highest visible face around. If equal
		1077	* visibilities, we still want the one nearer to the
		1078	* top
		1079	*/
		1080	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
		1081	{
		1082	middle_visibility = ::faces [tmp->face].visibility;
1161	middle = tmp;	1083	middle = tmp;
1162	anywhere = 1;	1084	}
1163	}	1085	}
1164	/* Find the highest visible face around. If equal
1165	* visibilities, we still want the one nearer to the
1166	* top
1167	*/
1168	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1169	middle = tmp;
1170	}
1171
1172	if (tmp == tmp->above)
1173	{
1174	LOG (llevError, "Error in structure of map\n");
1175	exit (-1);
1176	}	1086	}
1177		1087
1178	move_slow |= tmp->move_slow;	1088	move_slow |= tmp->move_slow;
1179	move_block |= tmp->move_block;	1089	move_block |= tmp->move_block;
1180	move_on |= tmp->move_on;	1090	move_on |= tmp->move_on;
1181	move_off |= tmp->move_off;	1091	move_off |= tmp->move_off;
1182	move_allow |= tmp->move_allow;	1092	move_allow |= tmp->move_allow;
1183		1093
1184	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;	1094	allflags |= tmp->flag;
1185	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;	1095
1186	if (tmp->type == PLAYER) flags |= P_PLAYER;	1096	if (tmp->type == PLAYER) flags |= P_PLAYER;
1187	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1097	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1188	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1189	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1190	}	1098	}
1191		1099
1192	this->light = light;	1100	// FLAG_SEE_ANYWHERE takes precedence
		1101	if (anywhere)
		1102	middle = anywhere;
		1103
		1104	// ORing all flags together and checking them here is much faster
		1105	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
		1106	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1107	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1108	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1109
		1110	this->light = min (light, MAX_LIGHT_RADIUS);
1193	this->flags_ = flags;	1111	this->flags_ = flags;
1194	this->move_block = move_block & ~move_allow;	1112	this->move_block = move_block & ~move_allow;
1195	this->move_on = move_on;	1113	this->move_on = move_on;
1196	this->move_off = move_off;	1114	this->move_off = move_off;
1197	this->move_slow = move_slow;	1115	this->move_slow = move_slow;
		1116	this->volume_ = (volume + 1023) / 1024;
		1117	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
1198		1118
1199	/* At this point, we have a floor face (if there is a floor),	1119	/* At this point, we have a floor face (if there is a floor),
1200	* and the floor is set - we are not going to touch it at	1120	* and the floor is set - we are not going to touch it at
1201	* this point.	1121	* this point.
1202	* middle contains the highest visibility face.	1122	* middle contains the highest visibility face.
…		…
1217	* 1) top face is set, need middle to be set.	1137	* 1) top face is set, need middle to be set.
1218	* 2) middle is set, need to set top.	1138	* 2) middle is set, need to set top.
1219	* 3) neither middle or top is set - need to set both.	1139	* 3) neither middle or top is set - need to set both.
1220	*/	1140	*/
1221		1141
1222	for (tmp = last; tmp; tmp = tmp->below)	1142	for (object *tmp = last; tmp; tmp = tmp->below)
1223	{	1143	{
1224	/* Once we get to a floor, stop, since we already have a floor object */	1144	/* Once we get to a floor, stop, since we already have a floor object */
1225	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1145	if (tmp->flag [FLAG_IS_FLOOR])
1226	break;	1146	break;
1227		1147
1228	/* If two top faces are already set, quit processing */	1148	/* If two top faces are already set, quit processing */
1229	if (top && middle)	1149	if (top && middle)
1230	break;	1150	break;
…		…
1268	faces_obj [1] = middle;	1188	faces_obj [1] = middle;
1269	faces_obj [2] = floor;	1189	faces_obj [2] = floor;
1270	#endif	1190	#endif
1271	}	1191	}
1272		1192
1273	uint64	1193	maptile *
1274	mapspace::volume () const	1194	maptile::tile_available (int dir, bool load)
1275	{	1195	{
1276	uint64 vol = 0;	1196	if (tile_path[dir])
1277
1278	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1279	vol += op->volume ();
1280
1281	return vol;
1282	}
1283
1284	/* this updates the orig_map->tile_map[tile_num] value after finding
1285	* the map. It also takes care of linking back the freshly found
1286	* maps tile_map values if it tiles back to this one. It returns
1287	* the value of orig_map->tile_map[tile_num].
1288	*/
1289	static inline maptile *
1290	find_and_link (maptile *orig_map, int tile_num)
1291	{
1292	maptile *mp = orig_map->tile_map [tile_num];
1293
1294	if (!mp)
1295	{
1296	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
1297
1298	if (!mp)
1299	{
1300	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
1301	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
1302	&orig_map->tile_path[tile_num], &orig_map->path);
1303	mp = new maptile (1, 1);
1304	mp->alloc ();
1305	mp->in_memory = MAP_IN_MEMORY;
1306	}
1307	}	1197	{
		1198	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1199	return tile_map[dir];
1308		1200
1309	int dest_tile = (tile_num + 2) % 4;	1201	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1202	return tile_map[dir];
		1203	}
1310		1204
1311	orig_map->tile_map [tile_num] = mp;
1312
1313	// optimisation: back-link map to origin map if euclidean
1314	//TODO: non-euclidean maps MUST GO
1315	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1316	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1317
1318	return mp;	1205	return 0;
1319	}
1320
1321	static inline void
1322	load_and_link (maptile *orig_map, int tile_num)
1323	{
1324	find_and_link (orig_map, tile_num)->load_sync ();
1325	}	1206	}
1326		1207
1327	/* this returns TRUE if the coordinates (x,y) are out of	1208	/* this returns TRUE if the coordinates (x,y) are out of
1328	* map m. This function also takes into account any	1209	* map m. This function also takes into account any
1329	* tiling considerations, loading adjacant maps as needed.	1210	* tiling considerations, loading adjacant maps as needed.
…		…
1342	if (!m)	1223	if (!m)
1343	return 0;	1224	return 0;
1344		1225
1345	if (x < 0)	1226	if (x < 0)
1346	{	1227	{
1347	if (!m->tile_path[3])	1228	if (!m->tile_available (3))
1348	return 1;	1229	return 1;
1349		1230
1350	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1351	find_and_link (m, 3);
1352
1353	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);	1231	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
1354	}	1232	}
1355		1233
1356	if (x >= m->width)	1234	if (x >= m->width)
1357	{	1235	{
1358	if (!m->tile_path[1])	1236	if (!m->tile_available (1))
1359	return 1;	1237	return 1;
1360		1238
1361	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1362	find_and_link (m, 1);
1363
1364	return out_of_map (m->tile_map[1], x - m->width, y);	1239	return out_of_map (m->tile_map[1], x - m->width, y);
1365	}	1240	}
1366		1241
1367	if (y < 0)	1242	if (y < 0)
1368	{	1243	{
1369	if (!m->tile_path[0])	1244	if (!m->tile_available (0))
1370	return 1;	1245	return 1;
1371		1246
1372	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1373	find_and_link (m, 0);
1374
1375	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);	1247	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
1376	}	1248	}
1377		1249
1378	if (y >= m->height)	1250	if (y >= m->height)
1379	{	1251	{
1380	if (!m->tile_path[2])	1252	if (!m->tile_available (2))
1381	return 1;	1253	return 1;
1382
1383	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1384	find_and_link (m, 2);
1385		1254
1386	return out_of_map (m->tile_map[2], x, y - m->height);	1255	return out_of_map (m->tile_map[2], x, y - m->height);
1387	}	1256	}
1388		1257
1389	/* Simple case - coordinates are within this local	1258	/* Simple case - coordinates are within this local
…		…
1403	maptile *	1272	maptile *
1404	maptile::xy_find (sint16 &x, sint16 &y)	1273	maptile::xy_find (sint16 &x, sint16 &y)
1405	{	1274	{
1406	if (x < 0)	1275	if (x < 0)
1407	{	1276	{
1408	if (!tile_path[3])	1277	if (!tile_available (3))
1409	return 0;	1278	return 0;
1410		1279
1411	find_and_link (this, 3);
1412	x += tile_map[3]->width;	1280	x += tile_map[3]->width;
1413	return tile_map[3]->xy_find (x, y);	1281	return tile_map[3]->xy_find (x, y);
1414	}	1282	}
1415		1283
1416	if (x >= width)	1284	if (x >= width)
1417	{	1285	{
1418	if (!tile_path[1])	1286	if (!tile_available (1))
1419	return 0;	1287	return 0;
1420		1288
1421	find_and_link (this, 1);
1422	x -= width;	1289	x -= width;
1423	return tile_map[1]->xy_find (x, y);	1290	return tile_map[1]->xy_find (x, y);
1424	}	1291	}
1425		1292
1426	if (y < 0)	1293	if (y < 0)
1427	{	1294	{
1428	if (!tile_path[0])	1295	if (!tile_available (0))
1429	return 0;	1296	return 0;
1430		1297
1431	find_and_link (this, 0);
1432	y += tile_map[0]->height;	1298	y += tile_map[0]->height;
1433	return tile_map[0]->xy_find (x, y);	1299	return tile_map[0]->xy_find (x, y);
1434	}	1300	}
1435		1301
1436	if (y >= height)	1302	if (y >= height)
1437	{	1303	{
1438	if (!tile_path[2])	1304	if (!tile_available (2))
1439	return 0;	1305	return 0;
1440		1306
1441	find_and_link (this, 2);
1442	y -= height;	1307	y -= height;
1443	return tile_map[2]->xy_find (x, y);	1308	return tile_map[2]->xy_find (x, y);
1444	}	1309	}
1445		1310
1446	/* Simple case - coordinates are within this local	1311	/* Simple case - coordinates are within this local
…		…
1452	/**	1317	/**
1453	* Return whether map2 is adjacent to map1. If so, store the distance from	1318	* Return whether map2 is adjacent to map1. If so, store the distance from
1454	* map1 to map2 in dx/dy.	1319	* map1 to map2 in dx/dy.
1455	*/	1320	*/
1456	int	1321	int
1457	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1322	adjacent_map (maptile *map1, maptile *map2, int *dx, int *dy)
1458	{	1323	{
1459	if (!map1 || !map2)	1324	if (!map1 || !map2)
1460	return 0;	1325	return 0;
1461		1326
1462	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded	1327	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
1463	//fix: compare paths instead (this is likely faster, too!)	1328	//fix: compare paths instead (this is likely faster, too!)
1464	if (map1 == map2)	1329	if (map1 == map2)
1465	{	1330	{
1466	*dx = 0;	1331	*dx = 0;
1467	*dy = 0;	1332	*dy = 0;
1468	}	1333	}
1469	else if (map1->tile_map[0] == map2)	1334	else if (map1->tile_available (0, false) == map2)
1470	{ /* up */	1335	{ /* up */
1471	*dx = 0;	1336	*dx = 0;
1472	*dy = -map2->height;	1337	*dy = -map2->height;
1473	}	1338	}
1474	else if (map1->tile_map[1] == map2)	1339	else if (map1->tile_available (1, false) == map2)
1475	{ /* right */	1340	{ /* right */
1476	*dx = map1->width;	1341	*dx = map1->width;
1477	*dy = 0;	1342	*dy = 0;
1478	}	1343	}
1479	else if (map1->tile_map[2] == map2)	1344	else if (map1->tile_available (2, false) == map2)
1480	{ /* down */	1345	{ /* down */
1481	*dx = 0;	1346	*dx = 0;
1482	*dy = map1->height;	1347	*dy = map1->height;
1483	}	1348	}
1484	else if (map1->tile_map[3] == map2)	1349	else if (map1->tile_available (3, false) == map2)
1485	{ /* left */	1350	{ /* left */
1486	*dx = -map2->width;	1351	*dx = -map2->width;
1487	*dy = 0;	1352	*dy = 0;
1488	}	1353	}
1489	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1354	else if (map1->tile_map[0] && map1->tile_map[0]->tile_available (1, false) == map2)
1490	{ /* up right */	1355	{ /* up right */
1491	*dx = map1->tile_map[0]->width;	1356	*dx = map1->tile_map[0]->width;
1492	*dy = -map1->tile_map[0]->height;	1357	*dy = -map1->tile_map[0]->height;
1493	}	1358	}
1494	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1359	else if (map1->tile_map[0] && map1->tile_map[0]->tile_available (3, false) == map2)
1495	{ /* up left */	1360	{ /* up left */
1496	*dx = -map2->width;	1361	*dx = -map2->width;
1497	*dy = -map1->tile_map[0]->height;	1362	*dy = -map1->tile_map[0]->height;
1498	}	1363	}
1499	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1364	else if (map1->tile_map[1] && map1->tile_map[1]->tile_available (0, false) == map2)
1500	{ /* right up */	1365	{ /* right up */
1501	*dx = map1->width;	1366	*dx = map1->width;
1502	*dy = -map2->height;	1367	*dy = -map2->height;
1503	}	1368	}
1504	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1369	else if (map1->tile_map[1] && map1->tile_map[1]->tile_available (2, false) == map2)
1505	{ /* right down */	1370	{ /* right down */
1506	*dx = map1->width;	1371	*dx = map1->width;
1507	*dy = map1->tile_map[1]->height;	1372	*dy = map1->tile_map[1]->height;
1508	}	1373	}
1509	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1374	else if (map1->tile_map[2] && map1->tile_map[2]->tile_available (1, false) == map2)
1510	{ /* down right */	1375	{ /* down right */
1511	*dx = map1->tile_map[2]->width;	1376	*dx = map1->tile_map[2]->width;
1512	*dy = map1->height;	1377	*dy = map1->height;
1513	}	1378	}
1514	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1379	else if (map1->tile_map[2] && map1->tile_map[2]->tile_available (3, false) == map2)
1515	{ /* down left */	1380	{ /* down left */
1516	*dx = -map2->width;	1381	*dx = -map2->width;
1517	*dy = map1->height;	1382	*dy = map1->height;
1518	}	1383	}
1519	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1384	else if (map1->tile_map[3] && map1->tile_map[3]->tile_available (0, false) == map2)
1520	{ /* left up */	1385	{ /* left up */
1521	*dx = -map1->tile_map[3]->width;	1386	*dx = -map1->tile_map[3]->width;
1522	*dy = -map2->height;	1387	*dy = -map2->height;
1523	}	1388	}
1524	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1389	else if (map1->tile_map[3] && map1->tile_map[3]->tile_available (2, false) == map2)
1525	{ /* left down */	1390	{ /* left down */
1526	*dx = -map1->tile_map[3]->width;	1391	*dx = -map1->tile_map[3]->width;
1527	*dy = map1->tile_map[3]->height;	1392	*dy = map1->tile_map[3]->height;
1528	}	1393	}
1529	else	1394	else
…		…
1568	*	1433	*
1569	* currently, the only flag supported (0x1) is don't translate for	1434	* currently, the only flag supported (0x1) is don't translate for
1570	* closest body part of 'op1'	1435	* closest body part of 'op1'
1571	*/	1436	*/
1572	void	1437	void
1573	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1438	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
1574	{	1439	{
1575	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1440	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
1576	{	1441	{
1577	/* be conservative and fill in _some_ data */	1442	/* be conservative and fill in _some_ data */
1578	retval->distance = 10000;	1443	retval->distance = 10000;
1579	retval->distance_x = 10000;	1444	retval->distance_x = 10000;
1580	retval->distance_y = 10000;	1445	retval->distance_y = 10000;
1581	retval->direction = 0;	1446	retval->direction = 0;
1582	retval->part = 0;	1447	retval->part = 0;
1583	}	1448	}
1584	else	1449	else
1585	{	1450	{
1586	object *best;
1587
1588	retval->distance_x += op2->x - op1->x;	1451	retval->distance_x += op2->x - op1->x;
1589	retval->distance_y += op2->y - op1->y;	1452	retval->distance_y += op2->y - op1->y;
1590		1453
1591	best = op1;	1454	object *best = op1;
		1455
1592	/* If this is multipart, find the closest part now */	1456	/* If this is multipart, find the closest part now */
1593	if (!(flags & 0x1) && op1->more)	1457	if (!(flags & 1) && op1->more)
1594	{	1458	{
1595	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1459	int best_distance = idistance (retval->distance_x, retval->distance_y);
1596		1460
1597	/* we just take the offset of the piece to head to figure	1461	/* we just take the offset of the piece to head to figure
1598	* distance instead of doing all that work above again	1462	* distance instead of doing all that work above again
1599	* since the distance fields we set above are positive in the	1463	* since the distance fields we set above are positive in the
1600	* same axis as is used for multipart objects, the simply arithmetic	1464	* same axis as is used for multipart objects, the simply arithmetic
1601	* below works.	1465	* below works.
1602	*/	1466	*/
1603	for (object *tmp = op1->more; tmp; tmp = tmp->more)	1467	for (object *tmp = op1->more; tmp; tmp = tmp->more)
1604	{	1468	{
1605	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1469	int tmpi = idistance (op1->x - tmp->x + retval->distance_x, op1->y - tmp->y + retval->distance_y);
1606	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1470
1607	if (tmpi < best_distance)	1471	if (tmpi < best_distance)
1608	{	1472	{
1609	best_distance = tmpi;	1473	best_distance = tmpi;
1610	best = tmp;	1474	best = tmp;
1611	}	1475	}
1612	}	1476	}
1613		1477
1614	if (best != op1)	1478	if (best != op1)
1615	{	1479	{
1616	retval->distance_x += op1->x - best->x;	1480	retval->distance_x += op1->x - best->x;
1617	retval->distance_y += op1->y - best->y;	1481	retval->distance_y += op1->y - best->y;
1618	}	1482	}
1619	}	1483	}
1620		1484
1621	retval->part = best;	1485	retval->part = best;
1622	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));	1486	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1623	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1487	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1624	}	1488	}
1625	}	1489	}
1626		1490
1627	/* this is basically the same as get_rangevector above, but instead of	1491	/* this is basically the same as get_rangevector above, but instead of
1628	* the first parameter being an object, it instead is the map	1492	* the first parameter being an object, it instead is the map
…		…
1633	* be more consistant with the above function and also in case they are needed	1497	* be more consistant with the above function and also in case they are needed
1634	* for something in the future. Also, since no object is pasted, the best	1498	* for something in the future. Also, since no object is pasted, the best
1635	* field of the rv_vector is set to NULL.	1499	* field of the rv_vector is set to NULL.
1636	*/	1500	*/
1637	void	1501	void
1638	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)	1502	get_rangevector_from_mapcoord (maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
1639	{	1503	{
1640	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1504	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
1641	{	1505	{
1642	/* be conservative and fill in _some_ data */	1506	/* be conservative and fill in _some_ data */
1643	retval->distance = 100000;	1507	retval->distance = 100000;
1644	retval->distance_x = 32767;	1508	retval->distance_x = 32767;
1645	retval->distance_y = 32767;	1509	retval->distance_y = 32767;
1646	retval->direction = 0;	1510	retval->direction = 0;
1647	retval->part = 0;	1511	retval->part = 0;
1648	}	1512	}
1649	else	1513	else
1650	{	1514	{
1651	retval->distance_x += op2->x - x;	1515	retval->distance_x += op2->x - x;
1652	retval->distance_y += op2->y - y;	1516	retval->distance_y += op2->y - y;
1653		1517
1654	retval->part = NULL;	1518	retval->part = 0;
1655	retval->distance = idistance (retval->distance_x, retval->distance_y);	1519	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1656	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1520	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1657	}	1521	}
1658	}	1522	}
1659		1523
1660	/* Returns true of op1 and op2 are effectively on the same map	1524	/* Returns true of op1 and op2 are effectively on the same map
1661	* (as related to map tiling). Note that this looks for a path from	1525	* (as related to map tiling). Note that this looks for a path from
…		…
1671	int dx, dy;	1535	int dx, dy;
1672		1536
1673	return adjacent_map (op1->map, op2->map, &dx, &dy);	1537	return adjacent_map (op1->map, op2->map, &dx, &dy);
1674	}	1538	}
1675		1539
		1540	//-GPL
		1541
1676	object *	1542	object *
1677	maptile::insert (object *op, int x, int y, object *originator, int flags)	1543	maptile::insert (object *op, int x, int y, object *originator, int flags)
1678	{	1544	{
1679	if (!op->flag [FLAG_REMOVED])
1680	op->remove ();
1681
1682	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1545	return insert_ob_in_map_at (op, this, originator, flags, x, y);
1683	}	1546	}
1684		1547
1685	region *	1548	region *
1686	maptile::region (int x, int y) const	1549	maptile::region (int x, int y) const
…		…
1695	return default_region;	1558	return default_region;
1696		1559
1697	return ::region::default_region ();	1560	return ::region::default_region ();
1698	}	1561	}
1699		1562
		1563	//+GPL
		1564
1700	/* picks a random object from a style map.	1565	/* picks a random object from a style map.
1701	* Redone by MSW so it should be faster and not use static
1702	* variables to generate tables.
1703	*/	1566	*/
1704	object *	1567	object *
1705	maptile::pick_random_object () const	1568	maptile::pick_random_object (rand_gen &gen) const
1706	{	1569	{
1707	/* while returning a null object will result in a crash, that	1570	/* while returning a null object will result in a crash, that
1708	* is actually preferable to an infinite loop. That is because	1571	* is actually preferable to an infinite loop. That is because
1709	* most servers will automatically restart in case of crash.	1572	* most servers will automatically restart in case of crash.
1710	* Change the logic on getting the random space - shouldn't make	1573	* Change the logic on getting the random space - shouldn't make
1711	* any difference, but this seems clearer to me.	1574	* any difference, but this seems clearer to me.
1712	*/	1575	*/
1713	for (int i = 1000; --i;)	1576	for (int i = 1000; --i;)
1714	{	1577	{
1715	object *pick = at (rndm (width), rndm (height)).bot;	1578	object *pick = at (gen (width), gen (height)).bot;
1716		1579
1717	// do not prefer big monsters just because they are big.	1580	// must be head: do not prefer big monsters just because they are big.
1718	if (pick && pick->head_ () == pick)	1581	if (pick && pick->is_head ())
1719	return pick->head_ ();	1582	return pick;
1720	}	1583	}
1721		1584
1722	// instead of crashing in the unlikely(?) case, try to return *something*	1585	// instead of crashing in the unlikely(?) case, try to return *something*
1723	return get_archetype ("blocked");	1586	return archetype::find (shstr_bug);
1724	}	1587	}
1725		1588
		1589	//-GPL
		1590
		1591	void
		1592	maptile::play_sound (faceidx sound, int x, int y) const
		1593	{
		1594	if (!sound)
		1595	return;
		1596
		1597	for_all_players_on_map (pl, this)
		1598	if (client *ns = pl->ns)
		1599	{
		1600	int dx = x - pl->ob->x;
		1601	int dy = y - pl->ob->y;
		1602
		1603	int distance = idistance (dx, dy);
		1604
		1605	if (distance <= MAX_SOUND_DISTANCE)
		1606	ns->play_sound (sound, dx, dy);
		1607	}
		1608	}
		1609
		1610	void
		1611	maptile::say_msg (const char *msg, int x, int y) const
		1612	{
		1613	for_all_players (pl)
		1614	if (client *ns = pl->ns)
		1615	{
		1616	int dx = x - pl->ob->x;
		1617	int dy = y - pl->ob->y;
		1618
		1619	int distance = idistance (dx, dy);
		1620
		1621	if (distance <= MAX_SOUND_DISTANCE)
		1622	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1623	}
		1624	}
		1625
		1626	dynbuf mapwalk_buf (sizeof (maprect) * 25, sizeof (maprect) * 25);
		1627
		1628	static void
		1629	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1630	{
		1631	// clip to map to the left
		1632	if (x0 < 0)
		1633	{
		1634	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1635	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1636
		1637	if (x1 < 0) // entirely to the left
		1638	return;
		1639
		1640	x0 = 0;
		1641	}
		1642
		1643	// clip to map to the right
		1644	if (x1 > m->width)
		1645	{
		1646	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1647	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1648
		1649	if (x0 > m->width) // entirely to the right
		1650	return;
		1651
		1652	x1 = m->width;
		1653	}
		1654
		1655	// clip to map above
		1656	if (y0 < 0)
		1657	{
		1658	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1659	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1660
		1661	if (y1 < 0) // entirely above
		1662	return;
		1663
		1664	y0 = 0;
		1665	}
		1666
		1667	// clip to map below
		1668	if (y1 > m->height)
		1669	{
		1670	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1671	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1672
		1673	if (y0 > m->height) // entirely below
		1674	return;
		1675
		1676	y1 = m->height;
		1677	}
		1678
		1679	// if we get here, the rect is within the current map
		1680	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1681
		1682	r->m = m;
		1683	r->x0 = x0;
		1684	r->y0 = y0;
		1685	r->x1 = x1;
		1686	r->y1 = y1;
		1687	r->dx = dx;
		1688	r->dy = dy;
		1689	}
		1690
		1691	maprect *
		1692	maptile::split_to_tiles (dynbuf &buf, int x0, int y0, int x1, int y1)
		1693	{
		1694	buf.clear ();
		1695
		1696	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1697
		1698	// add end marker
		1699	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1700	r->m = 0;
		1701
		1702	return (maprect *)buf.linearise ();
		1703	}
		1704

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