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Comparing deliantra/server/common/map.C (file contents):
Revision 1.56 by root, Sat Dec 30 10:16:10 2006 UTC vs.
Revision 1.164 by root, Fri Oct 16 01:19:12 2009 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 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 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	#include <global.h>
25	#include <funcpoint.h>
26
27	#include <loader.h>
28	#include <unistd.h>	25	#include <unistd.h>
29		26
		27	#include "global.h"
		28	#include "loader.h"
30	#include "path.h"	29	#include "path.h"
31		30
32	/*	31	sint8 maptile::outdoor_darkness;
33	* This makes a path absolute outside the world of Crossfire.
34	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
35	* and returns the pointer to a static array containing the result.
36	* it really should be called create_mapname
37	*/
38	const char *
39	create_pathname (const char *name)
40	{
41	static char buf[MAX_BUF];
42
43	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
44	* someplace else in the code? msw 2-17-97
45	*/
46	if (*name == '/')
47	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
48	else
49	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
50	return (buf);
51	}
52
53	/*
54	* same as create_pathname, but for the overlay maps.
55	*/
56	const char *
57	create_overlay_pathname (const char *name)
58	{
59	static char buf[MAX_BUF];
60
61	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
62	* someplace else in the code? msw 2-17-97
63	*/
64	if (*name == '/')
65	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
66	else
67	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
68	return (buf);
69	}
70
71	/*
72	* same as create_pathname, but for the template maps.
73	*/
74	const char *
75	create_template_pathname (const char *name)
76	{
77	static char buf[MAX_BUF];
78
79	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
80	* someplace else in the code? msw 2-17-97
81	*/
82	if (*name == '/')
83	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
84	else
85	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
86	return (buf);
87	}
88
89	/*
90	* This makes absolute path to the itemfile where unique objects
91	* will be saved. Converts '/' to '@'. I think it's essier maintain
92	* files than full directory structure, but if this is problem it can
93	* be changed.
94	*/
95	static const char *
96	create_items_path (const char *s)
97	{
98	static char buf[MAX_BUF];
99	char *t;
100
101	if (*s == '/')
102	s++;
103
104	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
105
106	for (t = buf + strlen (buf); *s; s++, t++)
107	if (*s == '/')
108	*t = '@';
109	else
110	*t = *s;
111	*t = 0;
112	return (buf);
113	}
114
115	/*
116	* This function checks if a file with the given path exists.
117	* -1 is returned if it fails, otherwise the mode of the file
118	* is returned.
119	* It tries out all the compression suffixes listed in the uncomp[] array.
120	*
121	* If prepend_dir is set, then we call create_pathname (which prepends
122	* libdir & mapdir). Otherwise, we assume the name given is fully
123	* complete.
124	* Only the editor actually cares about the writablity of this -
125	* the rest of the code only cares that the file is readable.
126	* when the editor goes away, the call to stat should probably be
127	* replaced by an access instead (similar to the windows one, but
128	* that seems to be missing the prepend_dir processing
129	*/
130	int
131	check_path (const char *name, int prepend_dir)
132	{
133	char buf[MAX_BUF];
134
135	char *endbuf;
136	struct stat statbuf;
137	int mode = 0;
138
139	if (prepend_dir)
140	strcpy (buf, create_pathname (name));
141	else
142	strcpy (buf, name);
143
144	/* old method (strchr(buf, '\0')) seemd very odd to me -
145	* this method should be equivalant and is clearer.
146	* Can not use strcat because we need to cycle through
147	* all the names.
148	*/
149	endbuf = buf + strlen (buf);
150
151	if (stat (buf, &statbuf))
152	return -1;
153	if (!S_ISREG (statbuf.st_mode))
154	return (-1);
155
156	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
157	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
158	mode |= 4;
159
160	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
161	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
162	mode |= 2;
163
164	return (mode);
165	}
166		32
167	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
168	* one function that just returns a P_.. value (see map.h)	34	* one function that just returns a P_.. value (see map.h)
169	* it will also do map translation for tiled maps, returning	35	* it will also do map translation for tiled maps, returning
170	* new values into newmap, nx, and ny. Any and all of those	36	* new values into newmap, nx, and ny. Any and all of those
…		…
205	* by the caller.	71	* by the caller.
206	*/	72	*/
207	int	73	int
208	blocked_link (object *ob, maptile *m, int sx, int sy)	74	blocked_link (object *ob, maptile *m, int sx, int sy)
209	{	75	{
210	object *tmp;
211	int mflags, blocked;
212
213	/* Make sure the coordinates are valid - they should be, as caller should	76	/* Make sure the coordinates are valid - they should be, as caller should
214	* have already checked this.	77	* have already checked this.
215	*/	78	*/
216	if (OUT_OF_REAL_MAP (m, sx, sy))	79	if (OUT_OF_REAL_MAP (m, sx, sy))
217	{	80	{
…		…
220	}	83	}
221		84
222	/* Save some cycles - instead of calling get_map_flags(), just get the value	85	/* Save some cycles - instead of calling get_map_flags(), just get the value
223	* directly.	86	* directly.
224	*/	87	*/
225	mflags = m->at (sx, sy).flags ();	88	mapspace &ms = m->at (sx, sy);
226		89
227	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	90	int mflags = ms.flags ();
		91	int blocked = ms.move_block;
228		92
229	/* If space is currently not blocked by anything, no need to	93	/* If space is currently not blocked by anything, no need to
230	* go further. Not true for players - all sorts of special	94	* go further. Not true for players - all sorts of special
231	* things we need to do for players.	95	* things we need to do for players.
232	*/	96	*/
233	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	97	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))
234	return 0;	98	return 0;
235		99
236	/* if there isn't anytyhing alive on this space, and this space isn't	100	/* if there isn't anything alive on this space, and this space isn't
237	* otherwise blocked, we can return now. Only if there is a living	101	* otherwise blocked, we can return now. Only if there is a living
238	* creature do we need to investigate if it is part of this creature	102	* creature do we need to investigate if it is part of this creature
239	* or another. Likewise, only if something is blocking us do we	103	* or another. Likewise, only if something is blocking us do we
240	* need to investigate if there is a special circumstance that would	104	* need to investigate if there is a special circumstance that would
241	* let the player through (inventory checkers for example)	105	* let the player through (inventory checkers for example)
242	*/	106	*/
243	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	107	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
244	return 0;	108	return 0;
245		109
246	if (ob->head != NULL)
247	ob = ob->head;	110	ob = ob->head_ ();
248		111
249	/* We basically go through the stack of objects, and if there is	112	/* We basically go through the stack of objects, and if there is
250	* some other object that has NO_PASS or FLAG_ALIVE set, return	113	* some other object that has NO_PASS or FLAG_ALIVE set, return
251	* true. If we get through the entire stack, that must mean	114	* true. If we get through the entire stack, that must mean
252	* ob is blocking it, so return 0.	115	* ob is blocking it, so return 0.
253	*/	116	*/
254	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	117	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
255	{	118	{
		119	bool block = OB_MOVE_BLOCK (ob, tmp);
256		120
257	/* This must be before the checks below. Code for inventory checkers. */	121	/* This must be before the checks below. Code for inventory checkers. */
258	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))	122	if (block && tmp->type == CHECK_INV)
259	{	123	{
		124	bool have = check_inv_recursive (ob, tmp);
		125
260	/* If last_sp is set, the player/monster needs an object,	126	/* If last_sp is set, the player/monster needs an object,
261	* so we check for it. If they don't have it, they can't	127	* so we check for it. If they don't have it, they can't
262	* pass through this space.	128	* pass through this space.
263	*/	129	*/
264	if (tmp->last_sp)	130	if (tmp->last_sp)
265	{	131	{
266	if (check_inv_recursive (ob, tmp) == NULL)	132	if (!have)
267	return 1;	133	return 1;
268	else
269	continue;
270	}	134	}
271	else	135	else
272	{	136	{
273	/* In this case, the player must not have the object -	137	/* In this case, the player must not have the object -
274	* if they do, they can't pass through.	138	* if they do, they can't pass through.
275	*/	139	*/
276	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */	140	if (have)
277	return 1;	141	return 1;
278	else
279	continue;
280	}	142	}
281	} /* if check_inv */	143	}
		144	else if (block && tmp->type == T_MATCH)
		145	{
		146	//TODO
		147	}
282	else	148	else
283	{	149	{
284	/* Broke apart a big nasty if into several here to make	150	/* Broke apart a big nasty if into several here to make
285	* this more readable. first check - if the space blocks	151	* this more readable. first check - if the space blocks
286	* movement, can't move here.	152	* movement, can't move here.
287	* second - if a monster, can't move there, unles it is a	153	* second - if a monster, can't move there, unless it is a
288	* hidden dm	154	* dm.
289	*/	155	*/
290	if (OB_MOVE_BLOCK (ob, tmp))	156	if (block)
291	return 1;	157	return 1;
292	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&	158
293	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))	159	if (tmp->flag [FLAG_ALIVE]
		160	&& tmp->head_ () != ob
		161	&& tmp != ob
		162	&& tmp->type != DOOR
		163	&& !tmp->flag [FLAG_WIZ])
294	return 1;	164	return 1;
295	}	165	}
296
297	}	166	}
		167
298	return 0;	168	return 0;
299	}	169	}
300		170
301
302	/*	171	/*
303	* Returns true if the given object can't fit in the given spot.	172	* Returns qthe blocking object if the given object can't fit in the given
304	* This is meant for multi space objects - for single space objecs,	173	* spot. This is meant for multi space objects - for single space objecs,
305	* just calling get_map_blocked and checking that against movement type	174	* just calling get_map_blocked and checking that against movement type
306	* of object. This function goes through all the parts of the	175	* of object. This function goes through all the parts of the multipart
307	* multipart object and makes sure they can be inserted.	176	* object and makes sure they can be inserted.
308	*	177	*
309	* While this doesn't call out of map, the get_map_flags does.	178	* While this doesn't call out of map, the get_map_flags does.
310	*	179	*
311	* This function has been used to deprecate arch_out_of_map -	180	* This function has been used to deprecate arch_out_of_map -
312	* this function also does that check, and since in most cases,	181	* this function also does that check, and since in most cases,
…		…
323	*	192	*
324	* Note this used to be arch_blocked, but with new movement	193	* Note this used to be arch_blocked, but with new movement
325	* code, we need to have actual object to check its move_type	194	* code, we need to have actual object to check its move_type
326	* against the move_block values.	195	* against the move_block values.
327	*/	196	*/
328	int	197	bool
329	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	198	object::blocked (maptile *m, int x, int y) const
330	{	199	{
331	archetype *tmp;	200	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
332	int flag;
333	maptile *m1;
334	sint16 sx, sy;
335
336	if (ob == NULL)
337	{
338	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
339	if (flag & P_OUT_OF_MAP)
340	return P_OUT_OF_MAP;
341
342	/* don't have object, so don't know what types would block */
343	return m1->at (sx, sy).move_block;
344	}	201	{
		202	mapxy pos (m, x + tmp->x, y + tmp->y);
345		203
346	for (tmp = ob->arch; tmp; tmp = tmp->more)	204	if (!pos.normalise ())
347	{	205	return 1;
348	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
349		206
350	if (flag & P_OUT_OF_MAP)	207	mapspace &ms = *pos;
351	return P_OUT_OF_MAP;	208
352	if (flag & P_IS_ALIVE)	209	if (ms.flags () & P_IS_ALIVE)
353	return P_IS_ALIVE;	210	return 1;
354		211
355	mapspace &ms = m1->at (sx, sy);	212	/* However, often ob doesn't have any move type
356		213	* (signifying non-moving objects)
357	/* find_first_free_spot() calls this function. However, often
358	* ob doesn't have any move type (when used to place exits)
359	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	214	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
360	*/	215	*/
361
362	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)	216	if (!move_type && ms.move_block != MOVE_ALL)
363	continue;	217	continue;
364		218
365	/* Note it is intentional that we check ob - the movement type of the	219	/* Note it is intentional that we check ob - the movement type of the
366	* head of the object should correspond for the entire object.	220	* head of the object should correspond for the entire object.
367	*/	221	*/
368	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))	222	if (ms.blocks (move_type))
369	return P_NO_PASS;	223	return 1;
370	}	224	}
371		225
372	return 0;	226	return 0;
373	}	227	}
374		228
…		…
392		246
393	insert_ob_in_ob (tmp, container);	247	insert_ob_in_ob (tmp, container);
394	tmp = next;	248	tmp = next;
395	}	249	}
396		250
397	/* sum_weight will go through and calculate what all the containers are	251	// go through and calculate what all the containers are carrying.
398	* carrying.	252	//TODO: remove
399	*/	253	container->update_weight ();
400	sum_weight (container);	254	}
		255
		256	void
		257	maptile::set_object_flag (int flag, int value)
		258	{
		259	if (!spaces)
		260	return;
		261
		262	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		263	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		264	tmp->flag [flag] = value;
		265	}
		266
		267	void
		268	maptile::post_load_original ()
		269	{
		270	if (!spaces)
		271	return;
		272
		273	set_object_flag (FLAG_OBJ_ORIGINAL);
		274
		275	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		276	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		277	INVOKE_OBJECT (RESET, tmp);
401	}	278	}
402		279
403	/* link_multipart_objects go through all the objects on the map looking	280	/* link_multipart_objects go through all the objects on the map looking
404	* for objects whose arch says they are multipart yet according to the	281	* for objects whose arch says they are multipart yet according to the
405	* info we have, they only have the head (as would be expected when	282	* info we have, they only have the head (as would be expected when
406	* they are saved). We do have to look for the old maps that did save	283	* they are saved).
407	* the more sections and not re-add sections for them.
408	*/	284	*/
409	void	285	void
410	maptile::link_multipart_objects ()	286	maptile::link_multipart_objects ()
411	{	287	{
412	if (!spaces)	288	if (!spaces)
413	return;	289	return;
414		290
415	for (mapspace *ms = spaces + size (); ms-- > spaces; )	291	for (mapspace *ms = spaces + size (); ms-- > spaces; )
416	for (object *tmp = ms->bot; tmp; )	292	{
		293	object *op = ms->bot;
		294	while (op)
417	{	295	{
418	object *above = tmp->above;
419
420	/* already multipart - don't do anything more */	296	/* already multipart - don't do anything more */
421	if (!tmp->head && !tmp->more)	297	if (op->head_ () == op && !op->more && op->arch->more)
422	{
423	/* If there is nothing more to this object, this for loop
424	* won't do anything.
425	*/
426	archetype *at;
427	object *last, *op;
428	for (at = tmp->arch->more, last = tmp;
429	at;
430	at = at->more, last = op)
431	{	298	{
432	op = arch_to_object (at);	299	op->remove ();
		300	op->expand_tail ();
433		301
434	/* update x,y coordinates */	302	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
435	op->x += tmp->x;	303	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
436	op->y += tmp->y;	304	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
437	op->head = tmp;
438	op->map = this;
439	last->more = op;
440	op->name = tmp->name;
441	op->title = tmp->title;
442
443	/* we could link all the parts onto tmp, and then just
444	* call insert_ob_in_map once, but the effect is the same,
445	* as insert_ob_in_map will call itself with each part, and
446	* the coding is simpler to just to it here with each part.
447	*/
448	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	305	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
		306
		307	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
		308	// so we have to reset the iteration through the mapspace
449	}	309	}
		310	else
		311	op = op->above;
450	}	312	}
451
452	tmp = above;
453	}	313	}
454	}	314	}
455		315
456	/*	316	/*
457	* Loads (ands parses) the objects into a given map from the specified	317	* Loads (ands parses) the objects into a given map from the specified
458	* file pointer.	318	* file pointer.
459	* mapflags is the same as we get with load_original_map
460	*/	319	*/
461	bool	320	bool
462	maptile::load_objects (object_thawer &thawer)	321	maptile::_load_objects (object_thawer &f)
463	{	322	{
464	int unique;	323	for (;;)
465	object *op, *prev = NULL, *last_more = NULL, *otmp;
466
467	op = object::create ();
468	op->map = this; /* To handle buttons correctly */
469
470	while (int i = load_object (thawer, op, 0))
471	{	324	{
472	/* if the archetype for the object is null, means that we	325	coroapi::cede_to_tick (); // cede once in a while
473	* got an invalid object. Don't do anything with it - the game	326
474	* or editor will not be able to do anything with it either.	327	switch (f.kw)
475	*/
476	if (op->arch == NULL)
477	{	328	{
478	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	329	case KW_arch:
		330	if (object *op = object::read (f, this))
		331	{
		332	// TODO: why?
		333	if (op->inv)
		334	op->update_weight ();
		335
		336	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		337	{
		338	// we insert manually because
		339	// a) its way faster
		340	// b) we remove manually, too, and there are good reasons for that
		341	// c) it's correct
		342	mapspace &ms = at (op->x, op->y);
		343
		344	op->flag [FLAG_REMOVED] = false;
		345
		346	op->above = 0;
		347	op->below = ms.top;
		348
		349	*(ms.top ? &ms.top->above : &ms.bot) = op;
		350
		351	ms.top = op;
		352	ms.flags_ = 0;
		353	}
		354	else
		355	{
		356	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		357	op->destroy ();
		358	}
		359	}
		360
479	continue;	361	continue;
480	}
481		362
482	switch (i)
483	{
484	case LL_NORMAL:
485	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
486
487	if (op->inv)
488	sum_weight (op);
489
490	prev = op, last_more = op;
491	break;
492
493	case LL_MORE:	363	case KW_EOF:
494	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	364	return true;
495	op->head = prev, last_more->more = op, last_more = op;	365
		366	default:
		367	if (!f.parse_error ("map file"))
		368	return false;
496	break;	369	break;
497	}	370	}
498		371
499	op = object::create ();	372	f.next ();
500	op->map = this;
501	}
502
503	op->destroy ();
504
505	#if 0
506	for (i = 0; i < width; i++)
507	for (j = 0; j < height; j++)
508	{
509	unique = 0;
510	/* check for unique items, or unique squares */
511	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)
512	{
513	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
514	unique = 1;
515
516	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
517	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
518	}
519	}	373	}
520	#endif
521		374
522	return true;	375	return true;
523	}	376	}
524		377
525	void	378	void
526	maptile::activate ()	379	maptile::activate ()
527	{	380	{
528	if (!spaces)	381	if (spaces)
529	return;
530
531	for (mapspace *ms = spaces + size (); ms-- > spaces; )	382	for (mapspace *ms = spaces + size (); ms-- > spaces; )
532	for (object *op = ms->bot; op; op = op->above)	383	for (object *op = ms->bot; op; op = op->above)
533	op->activate (1);	384	op->activate_recursive ();
534	}	385	}
535		386
536	void	387	void
537	maptile::deactivate ()	388	maptile::deactivate ()
538	{	389	{
539	if (!spaces)	390	if (spaces)
540	return;
541
542	for (mapspace *ms = spaces + size (); ms-- > spaces; )	391	for (mapspace *ms = spaces + size (); ms-- > spaces; )
543	for (object *op = ms->bot; op; op = op->above)	392	for (object *op = ms->bot; op; op = op->above)
544	op->deactivate (1);	393	op->deactivate_recursive ();
545	}	394	}
546		395
547	bool	396	bool
548	maptile::save_objects (object_freezer &freezer, int flags)	397	maptile::_save_objects (object_freezer &f, int flags)
549	{	398	{
		399	coroapi::cede_to_tick ();
		400
550	if (flags & IO_HEADER)	401	if (flags & IO_HEADER)
551	save_header (freezer);	402	_save_header (f);
552		403
553	if (!spaces)	404	if (!spaces)
554	return false;	405	return false;
555		406
556	for (int i = 0; i < size (); ++i)	407	for (int i = 0; i < size (); ++i)
557	{	408	{
558	int unique = 0;	409	bool unique = 0;
		410
559	for (object *op = spaces [i].bot; op; op = op->above)	411	for (object *op = spaces [i].bot; op; op = op->above)
560	{	412	{
561	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])	413	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
562	unique = 1;
563		414
564	if (!op->can_map_save ())	415	if (expect_false (!op->can_map_save ()))
565	continue;	416	continue;
566		417
567	if (unique || op->flag [FLAG_UNIQUE])	418	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
568	{	419	{
569	if (flags & IO_UNIQUES)	420	if (flags & IO_UNIQUES)
570	save_object (freezer, op, 1);	421	op->write (f);
571	}	422	}
572	else if (flags & IO_OBJECTS)	423	else if (expect_true (flags & IO_OBJECTS))
573	save_object (freezer, op, 1);	424	op->write (f);
574	}	425	}
575	}	426	}
576		427
		428	coroapi::cede_to_tick ();
		429
577	return true;	430	return true;
578	}	431	}
579		432
580	bool	433	bool
581	maptile::load_objects (const char *path, bool skip_header)	434	maptile::_save_objects (const char *path, int flags)
582	{	435	{
583	object_thawer thawer (path);	436	object_freezer freezer;
584		437
585	if (!thawer)	438	if (!_save_objects (freezer, flags))
586	return false;	439	return false;
587		440
588	if (skip_header)
589	for (;;)
590	{
591	keyword kw = thawer.get_kv ();
592
593	if (kw == KW_end)
594	break;
595
596	thawer.skip_kv (kw);
597	}
598
599	return load_objects (thawer);
600	}
601
602	bool
603	maptile::save_objects (const char *path, int flags)
604	{
605	object_freezer freezer;
606
607	if (!save_objects (freezer, flags))
608	return false;
609
610	return freezer.save (path);	441	return freezer.save (path);
611	}	442	}
612		443
613	maptile::maptile ()	444	maptile::maptile ()
614	{	445	{
615	in_memory = MAP_SWAPPED;	446	in_memory = MAP_SWAPPED;
616		447
617	/* The maps used to pick up default x and y values from the	448	/* The maps used to pick up default x and y values from the
618	* map archetype. Mimic that behaviour.	449	* map archetype. Mimic that behaviour.
619	*/	450	*/
620	width = 16;	451	width = 16;
621	height = 16;	452	height = 16;
622	reset_timeout = 0;
623	timeout = 300;	453	timeout = 300;
624	enter_x = 0;	454	max_nrof = 1000; // 1000 items of anything
625	enter_y = 0;	455	max_volume = 2000000; // 2m³
626	}	456	}
627		457
628	maptile::maptile (int w, int h)	458	maptile::maptile (int w, int h)
629	{	459	{
630	in_memory = MAP_SWAPPED;	460	in_memory = MAP_SWAPPED;
…		…
736	return items;	566	return items;
737	}	567	}
738		568
739	/* 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
740	* the map (or something equivilent) into output_string. */	570	* the map (or something equivilent) into output_string. */
741	static void	571	static const char *
742	print_shop_string (maptile *m, char *output_string)	572	print_shop_string (maptile *m)
743	{	573	{
744	int i;	574	static dynbuf_text buf; buf.clear ();
745	char tmp[MAX_BUF];
746		575
747	strcpy (output_string, "");
748	for (i = 0; i < m->shopitems[0].index; i++)	576	for (int i = 0; i < m->shopitems[0].index; i++)
749	{	577	{
750	if (m->shopitems[i].typenum)	578	if (m->shopitems[i].typenum)
751	{	579	{
752	if (m->shopitems[i].strength)	580	if (m->shopitems[i].strength)
753	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	581	buf.printf ("%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
754	else	582	else
755	sprintf (tmp, "%s;", m->shopitems[i].name);	583	buf.printf ("%s;", m->shopitems[i].name);
756	}	584	}
757	else	585	else
758	{	586	{
759	if (m->shopitems[i].strength)	587	if (m->shopitems[i].strength)
760	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	588	buf.printf ("*:%d;", m->shopitems[i].strength);
761	else	589	else
762	sprintf (tmp, "*");	590	buf.printf ("*");
763	}	591	}
764
765	strcat (output_string, tmp);
766	}	592	}
		593
		594	return buf;
767	}	595	}
768		596
769	/* This loads the header information of the map. The header	597	/* This loads the header information of the map. The header
770	* contains things like difficulty, size, timeout, etc.	598	* contains things like difficulty, size, timeout, etc.
771	* 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
…		…
776	* This could be done in lex (like the object loader), but I think	604	* This could be done in lex (like the object loader), but I think
777	* currently, there are few enough fields this is not a big deal.	605	* currently, there are few enough fields this is not a big deal.
778	* MSW 2001-07-01	606	* MSW 2001-07-01
779	*/	607	*/
780	bool	608	bool
781	maptile::load_header (object_thawer &thawer)	609	maptile::_load_header (object_thawer &thawer)
782	{	610	{
783	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;
784	int msgpos = 0;
785	int maplorepos = 0;
786
787	for (;;)	611	for (;;)
788	{	612	{
789	keyword kw = thawer.get_kv ();
790
791	switch (kw)	613	switch (thawer.kw)
792	{	614	{
793	case KW_EOF:
794	LOG (llevError, "%s: end of file while reading map header, aborting header load.", &path);
795	return false;
796
797	case KW_end:
798	return true;
799
800	case KW_msg:	615	case KW_msg:
801	thawer.get_ml (KW_endmsg, msg);	616	thawer.get_ml (KW_endmsg, msg);
802	break;	617	break;
803		618
804	case KW_lore: // CF+ extension	619	case KW_lore: // CF+ extension
…		…
835	case KW_winddir: thawer.get (winddir); break;	650	case KW_winddir: thawer.get (winddir); break;
836	case KW_sky: thawer.get (sky); break;	651	case KW_sky: thawer.get (sky); break;
837		652
838	case KW_per_player: thawer.get (per_player); break;	653	case KW_per_player: thawer.get (per_player); break;
839	case KW_per_party: thawer.get (per_party); break;	654	case KW_per_party: thawer.get (per_party); break;
		655	case KW_no_reset: thawer.get (no_reset); break;
		656	case KW_no_drop: thawer.get (no_drop); break;
840		657
841	case KW_region: get_region_by_name (thawer.get_str ()); break;	658	case KW_region: default_region = region::find (thawer.get_str ()); break;
842	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;	659	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
843		660
844	// old names new names	661	// old names new names
845	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;	662	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
846	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;	663	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
…		…
855	case KW_tile_path_1: thawer.get (tile_path [0]); break;	672	case KW_tile_path_1: thawer.get (tile_path [0]); break;
856	case KW_tile_path_2: thawer.get (tile_path [1]); break;	673	case KW_tile_path_2: thawer.get (tile_path [1]); break;
857	case KW_tile_path_3: thawer.get (tile_path [2]); break;	674	case KW_tile_path_3: thawer.get (tile_path [2]); break;
858	case KW_tile_path_4: thawer.get (tile_path [3]); break;	675	case KW_tile_path_4: thawer.get (tile_path [3]); break;
859		676
		677	case KW_ERROR:
		678	set_key_text (thawer.kw_str, thawer.value);
		679	break;
		680
		681	case KW_end:
		682	thawer.next ();
		683	return true;
		684
860	default:	685	default:
861	LOG (llevError, "%s: skipping unknown key in map header: %s\n", &path, keyword_str [kw]);	686	if (!thawer.parse_error ("map", 0))
		687	return false;
862	break;	688	break;
863	}	689	}
		690
		691	thawer.next ();
864	}	692	}
865		693
866	abort ();	694	abort ();
867	}
868
869	bool
870	maptile::load_header (const char *path)
871	{
872	object_thawer thawer (path);
873
874	if (!thawer)
875	return false;
876
877	return load_header (thawer);
878	}	695	}
879		696
880	/******************************************************************************	697	/******************************************************************************
881	* This is the start of unique map handling code	698	* This is the start of unique map handling code
882	*****************************************************************************/	699	*****************************************************************************/
…		…
893	object *above = op->above;	710	object *above = op->above;
894		711
895	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	712	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
896	unique = 1;	713	unique = 1;
897		714
898	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	715	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
899	{
900	op->destroy_inv (false);
901	op->destroy ();	716	op->destroy ();
902	}
903		717
904	op = above;	718	op = above;
905	}	719	}
906	}	720	}
907	}	721	}
908		722
909	bool	723	bool
910	maptile::save_header (object_freezer &freezer)	724	maptile::_save_header (object_freezer &freezer)
911	{	725	{
912	#define MAP_OUT(k) freezer.put (KW_ ## k, k)	726	#define MAP_OUT(k) freezer.put (KW_ ## k, k)
913	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)	727	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)
914		728
915	MAP_OUT2 (arch, "map");	729	MAP_OUT2 (arch, "map");
…		…
917	if (name) MAP_OUT (name);	731	if (name) MAP_OUT (name);
918	MAP_OUT (swap_time);	732	MAP_OUT (swap_time);
919	MAP_OUT (reset_time);	733	MAP_OUT (reset_time);
920	MAP_OUT (reset_timeout);	734	MAP_OUT (reset_timeout);
921	MAP_OUT (fixed_resettime);	735	MAP_OUT (fixed_resettime);
		736	MAP_OUT (no_reset);
		737	MAP_OUT (no_drop);
922	MAP_OUT (difficulty);	738	MAP_OUT (difficulty);
923
924	if (region) MAP_OUT2 (region, region->name);	739	if (default_region) MAP_OUT2 (region, default_region->name);
925		740
926	if (shopitems)	741	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
927	{
928	char shop[MAX_BUF];
929	print_shop_string (this, shop);
930	MAP_OUT2 (shopitems, shop);
931	}
932
933	MAP_OUT (shopgreed);	742	MAP_OUT (shopgreed);
934	MAP_OUT (shopmin);	743	MAP_OUT (shopmin);
935	MAP_OUT (shopmax);	744	MAP_OUT (shopmax);
936	if (shoprace) MAP_OUT (shoprace);	745	if (shoprace) MAP_OUT (shoprace);
		746
937	MAP_OUT (darkness);	747	MAP_OUT (darkness);
938	MAP_OUT (width);	748	MAP_OUT (width);
939	MAP_OUT (height);	749	MAP_OUT (height);
940	MAP_OUT (enter_x);	750	MAP_OUT (enter_x);
941	MAP_OUT (enter_y);	751	MAP_OUT (enter_y);
…		…
957	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);	767	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
958	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);	768	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
959	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);	769	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
960	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);	770	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
961		771
962	MAP_OUT2 (end, 0);	772	freezer.put (this);
		773	freezer.put (KW_end);
963		774
964	return true;	775	return true;
965	}	776	}
966		777
967	bool	778	bool
968	maptile::save_header (const char *path)	779	maptile::_save_header (const char *path)
969	{	780	{
970	object_freezer freezer;	781	object_freezer freezer;
971		782
972	if (!save_header (freezer))	783	if (!_save_header (freezer))
973	return false;	784	return false;
974		785
975	return freezer.save (path);	786	return freezer.save (path);
976	}	787	}
977		788
…		…
979	* Remove and free all objects in the given map.	790	* Remove and free all objects in the given map.
980	*/	791	*/
981	void	792	void
982	maptile::clear ()	793	maptile::clear ()
983	{	794	{
984	if (!spaces)	795	if (spaces)
985	return;	796	{
986
987	for (mapspace *ms = spaces + size (); ms-- > spaces; )	797	for (mapspace *ms = spaces + size (); ms-- > spaces; )
988	while (object *op = ms->bot)	798	while (object *op = ms->bot)
989	{	799	{
		800	// manually remove, as to not trigger anything
		801	if (ms->bot = op->above)
		802	ms->bot->below = 0;
		803
		804	op->flag [FLAG_REMOVED] = true;
		805
		806	object *head = op->head_ ();
990	if (op->head)	807	if (op == head)
991	op = op->head;
992
993	op->destroy_inv (false);
994	op->destroy ();	808	op->destroy ();
		809	else if (head->map != op->map)
		810	{
		811	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
		812	head->destroy ();
		813	}
		814	}
		815
		816	sfree0 (spaces, size ());
995	}	817	}
996
997	sfree (spaces, size ()), spaces = 0;
998		818
999	if (buttons)	819	if (buttons)
1000	free_objectlinkpt (buttons), buttons = 0;	820	free_objectlinkpt (buttons), buttons = 0;
		821
		822	sfree0 (regions, size ());
		823	delete [] regionmap; regionmap = 0;
1001	}	824	}
1002		825
1003	void	826	void
1004	maptile::clear_header ()	827	maptile::clear_header ()
1005	{	828	{
…		…
1037	attachable::do_destroy ();	860	attachable::do_destroy ();
1038		861
1039	clear ();	862	clear ();
1040	}	863	}
1041		864
1042	/*	865	/* decay and destroy perishable items in a map */
1043	* Updates every button on the map (by calling update_button() for them).
1044	*/
1045	void	866	void
1046	maptile::update_buttons ()	867	maptile::do_decay_objects ()
1047	{	868	{
1048	for (oblinkpt *obp = buttons; obp; obp = obp->next)	869	if (!spaces)
1049	for (objectlink *ol = obp->link; ol; ol = ol->next)	870	return;
		871
		872	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		873	for (object *above, *op = ms->bot; op; op = above)
1050	{	874	{
1051	if (!ol->ob)	875	above = op->above;
		876
		877	bool destroy = 0;
		878
		879	// do not decay anything above unique floor tiles (yet :)
		880	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		881	break;
		882
		883	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		884	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		885	|| QUERY_FLAG (op, FLAG_UNIQUE)
		886	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		887	|| QUERY_FLAG (op, FLAG_UNPAID)
		888	|| op->is_alive ())
		889	; // do not decay
		890	else if (op->is_weapon ())
1052	{	891	{
1053	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",	892	op->stats.dam--;
1054	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);	893	if (op->stats.dam < 0)
1055	continue;	894	destroy = 1;
1056	}	895	}
1057		896	else if (op->is_armor ())
1058	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1059	{	897	{
1060	update_button (ol->ob);	898	op->stats.ac--;
1061	break;	899	if (op->stats.ac < 0)
		900	destroy = 1;
1062	}	901	}
		902	else if (op->type == FOOD)
		903	{
		904	op->stats.food -= rndm (5, 20);
		905	if (op->stats.food < 0)
		906	destroy = 1;
		907	}
		908	else
		909	{
		910	int mat = op->materials;
		911
		912	if (mat & M_PAPER
		913	|| mat & M_LEATHER
		914	|| mat & M_WOOD
		915	|| mat & M_ORGANIC
		916	|| mat & M_CLOTH
		917	|| mat & M_LIQUID
		918	|| (mat & M_IRON && rndm (1, 5) == 1)
		919	|| (mat & M_GLASS && rndm (1, 2) == 1)
		920	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		921	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		922	|| (mat & M_ICE && temp > 32))
		923	destroy = 1;
		924	}
		925
		926	/* adjust overall chance below */
		927	if (destroy && rndm (0, 1))
		928	op->destroy ();
1063	}	929	}
1064	}	930	}
1065		931
1066	/*	932	/*
1067	* This routine is supposed to find out the difficulty of the map.	933	* This routine is supposed to find out the difficulty of the map.
1068	* difficulty does not have a lot to do with character level,	934	* difficulty does not have a lot to do with character level,
1069	* but does have a lot to do with treasure on the map.	935	* but does have a lot to do with treasure on the map.
1070	*	936	*
1071	* Difficulty can now be set by the map creature. If the value stored	937	* Difficulty can now be set by the map creator. If the value stored
1072	* in the map is zero, then use this routine. Maps should really	938	* in the map is zero, then use this routine. Maps should really
1073	* have a difficulty set than using this function - human calculation	939	* have a difficulty set rather than using this function - human calculation
1074	* is much better than this functions guesswork.	940	* is much better than this function's guesswork.
1075	*/	941	*/
1076	int	942	int
1077	maptile::estimate_difficulty () const	943	maptile::estimate_difficulty () const
1078	{	944	{
1079	long monster_cnt = 0;	945	long monster_cnt = 0;
…		…
1091		957
1092	if (QUERY_FLAG (op, FLAG_GENERATOR))	958	if (QUERY_FLAG (op, FLAG_GENERATOR))
1093	{	959	{
1094	total_exp += op->stats.exp;	960	total_exp += op->stats.exp;
1095		961
1096	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))	962	if (archetype *at = op->other_arch)
		963	{
1097	total_exp += at->clone.stats.exp * 8;	964	total_exp += at->stats.exp * 8;
1098
1099	monster_cnt++;	965	monster_cnt++;
		966	}
		967
		968	for (object *inv = op->inv; inv; inv = inv->below)
		969	{
		970	total_exp += op->stats.exp * 8;
		971	monster_cnt++;
		972	}
1100	}	973	}
1101	}	974	}
1102		975
1103	avgexp = (double) total_exp / monster_cnt;	976	avgexp = (double) total_exp / monster_cnt;
1104		977
…		…
1117	* postive values make it darker, negative make it brighter	990	* postive values make it darker, negative make it brighter
1118	*/	991	*/
1119	int	992	int
1120	maptile::change_map_light (int change)	993	maptile::change_map_light (int change)
1121	{	994	{
1122	int new_level = darkness + change;
1123
1124	/* Nothing to do */	995	/* Nothing to do */
1125	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))	996	if (!change)
1126	return 0;	997	return 0;
1127		998
1128	/* inform all players on the map */	999	/* inform all players on the map */
1129	if (change > 0)	1000	if (change > 0)
1130	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");	1001	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1131	else	1002	else
1132	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");	1003	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1133		1004
1134	/* Do extra checking. since darkness is a unsigned value,	1005	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1135	* we need to be extra careful about negative values.
1136	* In general, the checks below are only needed if change
1137	* is not +/-1
1138	*/
1139	if (new_level < 0)
1140	darkness = 0;
1141	else if (new_level >= MAX_DARKNESS)
1142	darkness = MAX_DARKNESS;
1143	else
1144	darkness = new_level;
1145		1006
1146	/* All clients need to get re-updated for the change */	1007	/* All clients need to get re-updated for the change */
1147	update_all_map_los (this);	1008	update_all_map_los (this);
		1009
1148	return 1;	1010	return 1;
1149	}	1011	}
1150		1012
1151	/*	1013	/*
1152	* This function updates various attributes about a specific space	1014	* This function updates various attributes about a specific space
…		…
1155	* through, etc)	1017	* through, etc)
1156	*/	1018	*/
1157	void	1019	void
1158	mapspace::update_ ()	1020	mapspace::update_ ()
1159	{	1021	{
1160	object *tmp, *last = 0;	1022	object *last = 0;
1161	uint8 flags = 0, light = 0, anywhere = 0;	1023	uint8 flags = P_UPTODATE, anywhere = 0;
1162	New_Face *top, *floor, *middle;	1024	sint8 light = 0;
1163	object *top_obj, *floor_obj, *middle_obj;
1164	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1025	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
1165		1026
1166	middle = blank_face;	1027	//object *middle = 0;
1167	top = blank_face;	1028	//object *top = 0;
1168	floor = blank_face;	1029	//object *floor = 0;
		1030	// this seems to generate better code than using locals, above
		1031	object *&top = faces_obj[0] = 0;
		1032	object *&middle = faces_obj[1] = 0;
		1033	object *&floor = faces_obj[2] = 0;
1169		1034
1170	middle_obj = 0;
1171	top_obj = 0;
1172	floor_obj = 0;
1173
1174	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1035	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1175	{	1036	{
1176	/* This could be made additive I guess (two lights better than	1037	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1177	* one). But if so, it shouldn't be a simple additive - 2
1178	* light bulbs do not illuminate twice as far as once since
1179	* it is a dissapation factor that is cubed.
1180	*/
1181	if (tmp->glow_radius > light)
1182	light = tmp->glow_radius;	1038	light += tmp->glow_radius;
1183		1039
1184	/* This call is needed in order to update objects the player	1040	/* This call is needed in order to update objects the player
1185	* is standing in that have animations (ie, grass, fire, etc).	1041	* is standing in that have animations (ie, grass, fire, etc).
1186	* However, it also causes the look window to be re-drawn	1042	* However, it also causes the look window to be re-drawn
1187	* 3 times each time the player moves, because many of the	1043	* 3 times each time the player moves, because many of the
…		…
1190	* Always put the player down for drawing.	1046	* Always put the player down for drawing.
1191	*/	1047	*/
1192	if (!tmp->invisible)	1048	if (!tmp->invisible)
1193	{	1049	{
1194	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1050	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))
1195	{
1196	top = tmp->face;
1197	top_obj = tmp;	1051	top = tmp;
1198	}
1199	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1052	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1200	{	1053	{
1201	/* If we got a floor, that means middle and top were below it,	1054	/* If we got a floor, that means middle and top were below it,
1202	* so should not be visible, so we clear them.	1055	* so should not be visible, so we clear them.
1203	*/	1056	*/
1204	middle = blank_face;	1057	middle = 0;
1205	top = blank_face;	1058	top = 0;
1206	floor = tmp->face;
1207	floor_obj = tmp;	1059	floor = tmp;
1208	}	1060	}
1209	/* Flag anywhere have high priority */	1061	/* Flag anywhere have high priority */
1210	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))	1062	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1211	{	1063	{
1212	middle = tmp->face;
1213
1214	middle_obj = tmp;	1064	middle = tmp;
1215	anywhere = 1;	1065	anywhere = 1;
1216	}	1066	}
		1067
1217	/* Find the highest visible face around. If equal	1068	/* Find the highest visible face around. If equal
1218	* visibilities, we still want the one nearer to the	1069	* visibilities, we still want the one nearer to the
1219	* top	1070	* top
1220	*/	1071	*/
1221	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1072	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1222	{
1223	middle = tmp->face;
1224	middle_obj = tmp;	1073	middle = tmp;
1225	}
1226	}	1074	}
1227		1075
1228	if (tmp == tmp->above)	1076	if (tmp == tmp->above)
1229	{	1077	{
1230	LOG (llevError, "Error in structure of map\n");	1078	LOG (llevError, "Error in structure of map\n");
…		…
1243	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1091	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1244	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;	1092	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1245	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;	1093	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1246	}	1094	}
1247		1095
1248	this->light = light;	1096	this->light = min (light, MAX_LIGHT_RADIUS);
1249	this->flags_ = flags;	1097	this->flags_ = flags;
1250	this->move_block = move_block & ~move_allow;	1098	this->move_block = move_block & ~move_allow;
1251	this->move_on = move_on;	1099	this->move_on = move_on;
1252	this->move_off = move_off;	1100	this->move_off = move_off;
1253	this->move_slow = move_slow;	1101	this->move_slow = move_slow;
…		…
1265	* middle face. This should not happen, as we already have the	1113	* middle face. This should not happen, as we already have the
1266	* else statement above so middle should not get set. OTOH, it	1114	* else statement above so middle should not get set. OTOH, it
1267	* may be possible for the faces to match but be different objects.	1115	* may be possible for the faces to match but be different objects.
1268	*/	1116	*/
1269	if (top == middle)	1117	if (top == middle)
1270	middle = blank_face;	1118	middle = 0;
1271		1119
1272	/* There are three posibilities at this point:	1120	/* There are three posibilities at this point:
1273	* 1) top face is set, need middle to be set.	1121	* 1) top face is set, need middle to be set.
1274	* 2) middle is set, need to set top.	1122	* 2) middle is set, need to set top.
1275	* 3) neither middle or top is set - need to set both.	1123	* 3) neither middle or top is set - need to set both.
1276	*/	1124	*/
1277		1125
1278	for (tmp = last; tmp; tmp = tmp->below)	1126	for (object *tmp = last; tmp; tmp = tmp->below)
1279	{	1127	{
1280	/* Once we get to a floor, stop, since we already have a floor object */	1128	/* Once we get to a floor, stop, since we already have a floor object */
1281	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1129	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1282	break;	1130	break;
1283		1131
1284	/* If two top faces are already set, quit processing */	1132	/* If two top faces are already set, quit processing */
1285	if ((top != blank_face) && (middle != blank_face))	1133	if (top && middle)
1286	break;	1134	break;
1287		1135
1288	/* Only show visible faces, unless its the editor - show all */	1136	/* Only show visible faces */
1289	if (!tmp->invisible || editor)	1137	if (!tmp->invisible)
1290	{	1138	{
1291	/* Fill in top if needed */	1139	/* Fill in top if needed */
1292	if (top == blank_face)	1140	if (!top)
1293	{	1141	{
1294	top = tmp->face;
1295	top_obj = tmp;	1142	top = tmp;
1296	if (top == middle)	1143	if (top == middle)
1297	middle = blank_face;	1144	middle = 0;
1298	}	1145	}
1299	else	1146	else
1300	{	1147	{
1301	/* top is already set - we should only get here if	1148	/* top is already set - we should only get here if
1302	* middle is not set	1149	* middle is not set
1303	*	1150	*
1304	* Set the middle face and break out, since there is nothing	1151	* Set the middle face and break out, since there is nothing
1305	* more to fill in. We don't check visiblity here, since	1152	* more to fill in. We don't check visiblity here, since
1306	*	1153	*
1307	*/	1154	*/
1308	if (tmp->face != top)	1155	if (tmp != top)
1309	{	1156	{
1310	middle = tmp->face;
1311	middle_obj = tmp;	1157	middle = tmp;
1312	break;	1158	break;
1313	}	1159	}
1314	}	1160	}
1315	}	1161	}
1316	}	1162	}
1317		1163
1318	if (middle == floor)	1164	if (middle == floor)
1319	middle = blank_face;	1165	middle = 0;
1320		1166
1321	if (top == middle)	1167	if (top == middle)
1322	middle = blank_face;	1168	middle = 0;
1323		1169
1324	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1170	#if 0
1325	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1171	faces_obj [0] = top;
1326	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1172	faces_obj [1] = middle;
		1173	faces_obj [2] = floor;
		1174	#endif
1327	}	1175	}
1328		1176
1329	void	1177	uint64
1330	set_map_reset_time (maptile *map)	1178	mapspace::volume () const
1331	{	1179	{
1332	int timeout = map->reset_timeout;	1180	uint64 vol = 0;
1333		1181
1334	if (timeout <= 0)	1182	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1335	timeout = MAP_DEFAULTRESET;	1183	vol += op->volume ();
1336	if (timeout >= MAP_MAXRESET)
1337	timeout = MAP_MAXRESET;
1338		1184
1339	map->reset_time = time (0) + timeout;	1185	return vol;
1340	}	1186	}
1341		1187
1342	/* this updates the orig_map->tile_map[tile_num] value after loading	1188	maptile *
1343	* the map. It also takes care of linking back the freshly loaded	1189	maptile::tile_available (int dir, bool load)
1344	* maps tile_map values if it tiles back to this one. It returns
1345	* the value of orig_map->tile_map[tile_num]. It really only does this
1346	* so that it is easier for calling functions to verify success.
1347	*/
1348	static maptile *
1349	load_and_link_tiled_map (maptile *orig_map, int tile_num)
1350	{	1190	{
1351	maptile *mp = orig_map->find_map (orig_map->tile_path[tile_num]);	1191	if (tile_path[dir])
1352	mp->load ();	1192	{
		1193	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1194	return tile_map[dir];
1353		1195
1354	int dest_tile = (tile_num + 2) % 4;	1196	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1197	return tile_map[dir];
		1198	}
1355		1199
1356	orig_map->tile_map[tile_num] = mp;
1357
1358	/* need to do a strcmp here as the orig_map->path is not a shared string */
1359	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] && orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1360	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1361
1362	return mp;	1200	return 0;
1363	}	1201	}
1364		1202
1365	/* this returns TRUE if the coordinates (x,y) are out of	1203	/* this returns TRUE if the coordinates (x,y) are out of
1366	* map m. This function also takes into account any	1204	* map m. This function also takes into account any
1367	* tiling considerations, loading adjacant maps as needed.	1205	* tiling considerations, loading adjacant maps as needed.
…		…
1380	if (!m)	1218	if (!m)
1381	return 0;	1219	return 0;
1382		1220
1383	if (x < 0)	1221	if (x < 0)
1384	{	1222	{
1385	if (!m->tile_path[3])	1223	if (!m->tile_available (3))
1386	return 1;	1224	return 1;
1387		1225
1388	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1389	load_and_link_tiled_map (m, 3);
1390
1391	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);	1226	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
1392	}	1227	}
1393		1228
1394	if (x >= m->width)	1229	if (x >= m->width)
1395	{	1230	{
1396	if (!m->tile_path[1])	1231	if (!m->tile_available (1))
1397	return 1;	1232	return 1;
1398		1233
1399	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1400	load_and_link_tiled_map (m, 1);
1401
1402	return out_of_map (m->tile_map[1], x - m->width, y);	1234	return out_of_map (m->tile_map[1], x - m->width, y);
1403	}	1235	}
1404		1236
1405	if (y < 0)	1237	if (y < 0)
1406	{	1238	{
1407	if (!m->tile_path[0])	1239	if (!m->tile_available (0))
1408	return 1;	1240	return 1;
1409		1241
1410	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1411	load_and_link_tiled_map (m, 0);
1412
1413	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);	1242	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
1414	}	1243	}
1415		1244
1416	if (y >= m->height)	1245	if (y >= m->height)
1417	{	1246	{
1418	if (!m->tile_path[2])	1247	if (!m->tile_available (2))
1419	return 1;	1248	return 1;
1420
1421	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1422	load_and_link_tiled_map (m, 2);
1423		1249
1424	return out_of_map (m->tile_map[2], x, y - m->height);	1250	return out_of_map (m->tile_map[2], x, y - m->height);
1425	}	1251	}
1426		1252
1427	/* Simple case - coordinates are within this local	1253	/* Simple case - coordinates are within this local
…		…
1432		1258
1433	/* This is basically the same as out_of_map above, but	1259	/* This is basically the same as out_of_map above, but
1434	* instead we return NULL if no map is valid (coordinates	1260	* instead we return NULL if no map is valid (coordinates
1435	* out of bounds and no tiled map), otherwise it returns	1261	* out of bounds and no tiled map), otherwise it returns
1436	* the map as that the coordinates are really on, and	1262	* the map as that the coordinates are really on, and
1437	* updates x and y to be the localized coordinates.	1263	* updates x and y to be the localised coordinates.
1438	* Using this is more efficient of calling out_of_map	1264	* Using this is more efficient of calling out_of_map
1439	* and then figuring out what the real map is	1265	* and then figuring out what the real map is
1440	*/	1266	*/
1441	maptile *	1267	maptile *
1442	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)	1268	maptile::xy_find (sint16 &x, sint16 &y)
1443	{	1269	{
1444	if (*x < 0)	1270	if (x < 0)
1445	{	1271	{
1446	if (!m->tile_path[3])	1272	if (!tile_available (3))
1447	return 0;	1273	return 0;
1448		1274
1449	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1450	load_and_link_tiled_map (m, 3);
1451
1452	*x += m->tile_map[3]->width;	1275	x += tile_map[3]->width;
1453	return (get_map_from_coord (m->tile_map[3], x, y));	1276	return tile_map[3]->xy_find (x, y);
1454	}	1277	}
1455		1278
1456	if (*x >= m->width)	1279	if (x >= width)
1457	{	1280	{
1458	if (!m->tile_path[1])	1281	if (!tile_available (1))
1459	return 0;	1282	return 0;
1460		1283
1461	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1462	load_and_link_tiled_map (m, 1);
1463
1464	*x -= m->width;	1284	x -= width;
1465	return (get_map_from_coord (m->tile_map[1], x, y));	1285	return tile_map[1]->xy_find (x, y);
1466	}	1286	}
1467		1287
1468	if (*y < 0)	1288	if (y < 0)
1469	{	1289	{
1470	if (!m->tile_path[0])	1290	if (!tile_available (0))
1471	return 0;	1291	return 0;
1472		1292
1473	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1474	load_and_link_tiled_map (m, 0);
1475
1476	*y += m->tile_map[0]->height;	1293	y += tile_map[0]->height;
1477	return (get_map_from_coord (m->tile_map[0], x, y));	1294	return tile_map[0]->xy_find (x, y);
1478	}	1295	}
1479		1296
1480	if (*y >= m->height)	1297	if (y >= height)
1481	{	1298	{
1482	if (!m->tile_path[2])	1299	if (!tile_available (2))
1483	return 0;	1300	return 0;
1484		1301
1485	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1486	load_and_link_tiled_map (m, 2);
1487
1488	*y -= m->height;	1302	y -= height;
1489	return (get_map_from_coord (m->tile_map[2], x, y));	1303	return tile_map[2]->xy_find (x, y);
1490	}	1304	}
1491		1305
1492	/* Simple case - coordinates are within this local	1306	/* Simple case - coordinates are within this local
1493	* map.	1307	* map.
1494	*/	1308	*/
1495
1496	m->last_access = runtime;
1497	return m;	1309	return this;
1498	}	1310	}
1499		1311
1500	/**	1312	/**
1501	* Return whether map2 is adjacent to map1. If so, store the distance from	1313	* Return whether map2 is adjacent to map1. If so, store the distance from
1502	* map1 to map2 in dx/dy.	1314	* map1 to map2 in dx/dy.
1503	*/	1315	*/
1504	static int	1316	int
1505	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1317	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
1506	{	1318	{
1507	if (!map1 || !map2)	1319	if (!map1 || !map2)
1508	return 0;	1320	return 0;
1509		1321
		1322	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1323	//fix: compare paths instead (this is likely faster, too!)
1510	if (map1 == map2)	1324	if (map1 == map2)
1511	{	1325	{
1512	*dx = 0;	1326	*dx = 0;
1513	*dy = 0;	1327	*dy = 0;
1514	}	1328	}
…		…
1574	}	1388	}
1575	else	1389	else
1576	return 0;	1390	return 0;
1577		1391
1578	return 1;	1392	return 1;
		1393	}
		1394
		1395	maptile *
		1396	maptile::xy_load (sint16 &x, sint16 &y)
		1397	{
		1398	maptile *map = xy_find (x, y);
		1399
		1400	if (map)
		1401	map->load_sync ();
		1402
		1403	return map;
		1404	}
		1405
		1406	maptile *
		1407	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1408	{
		1409	return m->xy_load (*x, *y);
1579	}	1410	}
1580		1411
1581	/* From map.c	1412	/* From map.c
1582	* This is used by get_player to determine where the other	1413	* This is used by get_player to determine where the other
1583	* creature is. get_rangevector takes into account map tiling,	1414	* creature is. get_rangevector takes into account map tiling,
1584	* so you just can not look the the map coordinates and get the	1415	* so you just can not look the the map coordinates and get the
1585	* righte value. distance_x/y are distance away, which	1416	* righte value. distance_x/y are distance away, which
1586	* can be negativbe. direction is the crossfire direction scheme	1417	* can be negative. direction is the crossfire direction scheme
1587	* that the creature should head. part is the part of the	1418	* that the creature should head. part is the part of the
1588	* monster that is closest.	1419	* monster that is closest.
1589	*	1420	*
1590	* get_rangevector looks at op1 and op2, and fills in the	1421	* get_rangevector looks at op1 and op2, and fills in the
1591	* structure for op1 to get to op2.	1422	* structure for op1 to get to op2.
…		…
1602	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1433	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
1603	{	1434	{
1604	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1435	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
1605	{	1436	{
1606	/* be conservative and fill in _some_ data */	1437	/* be conservative and fill in _some_ data */
1607	retval->distance = 100000;	1438	retval->distance = 10000;
1608	retval->distance_x = 32767;	1439	retval->distance_x = 10000;
1609	retval->distance_y = 32767;	1440	retval->distance_y = 10000;
1610	retval->direction = 0;	1441	retval->direction = 0;
1611	retval->part = 0;	1442	retval->part = 0;
1612	}	1443	}
1613	else	1444	else
1614	{	1445	{
…		…
1619		1450
1620	best = op1;	1451	best = op1;
1621	/* If this is multipart, find the closest part now */	1452	/* If this is multipart, find the closest part now */
1622	if (!(flags & 0x1) && op1->more)	1453	if (!(flags & 0x1) && op1->more)
1623	{	1454	{
1624	object *tmp;
1625	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1455	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
1626		1456
1627	/* we just take the offset of the piece to head to figure	1457	/* we just take the offset of the piece to head to figure
1628	* distance instead of doing all that work above again	1458	* distance instead of doing all that work above again
1629	* since the distance fields we set above are positive in the	1459	* since the distance fields we set above are positive in the
1630	* same axis as is used for multipart objects, the simply arithmetic	1460	* same axis as is used for multipart objects, the simply arithmetic
1631	* below works.	1461	* below works.
1632	*/	1462	*/
1633	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1463	for (object *tmp = op1->more; tmp; tmp = tmp->more)
1634	{	1464	{
1635	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1465	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
1636	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1466	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
1637	if (tmpi < best_distance)	1467	if (tmpi < best_distance)
1638	{	1468	{
1639	best_distance = tmpi;	1469	best_distance = tmpi;
1640	best = tmp;	1470	best = tmp;
1641	}	1471	}
1642	}	1472	}
		1473
1643	if (best != op1)	1474	if (best != op1)
1644	{	1475	{
1645	retval->distance_x += op1->x - best->x;	1476	retval->distance_x += op1->x - best->x;
1646	retval->distance_y += op1->y - best->y;	1477	retval->distance_y += op1->y - best->y;
1647	}	1478	}
1648	}	1479	}
		1480
1649	retval->part = best;	1481	retval->part = best;
1650	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1482	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1651	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1483	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
1652	}	1484	}
1653	}	1485	}
1654		1486
1655	/* this is basically the same as get_rangevector above, but instead of	1487	/* this is basically the same as get_rangevector above, but instead of
…		…
1660	* flags has no meaning for this function at this time - I kept it in to	1492	* flags has no meaning for this function at this time - I kept it in to
1661	* be more consistant with the above function and also in case they are needed	1493	* be more consistant with the above function and also in case they are needed
1662	* for something in the future. Also, since no object is pasted, the best	1494	* for something in the future. Also, since no object is pasted, the best
1663	* field of the rv_vector is set to NULL.	1495	* field of the rv_vector is set to NULL.
1664	*/	1496	*/
1665
1666	void	1497	void
1667	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1498	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
1668	{	1499	{
1669	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1500	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
1670	{	1501	{
1671	/* be conservative and fill in _some_ data */	1502	/* be conservative and fill in _some_ data */
1672	retval->distance = 100000;	1503	retval->distance = 100000;
…		…
1678	else	1509	else
1679	{	1510	{
1680	retval->distance_x += op2->x - x;	1511	retval->distance_x += op2->x - x;
1681	retval->distance_y += op2->y - y;	1512	retval->distance_y += op2->y - y;
1682		1513
1683	retval->part = NULL;	1514	retval->part = 0;
1684	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1515	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1685	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1516	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
1686	}	1517	}
1687	}	1518	}
1688		1519
1689	/* Returns true of op1 and op2 are effectively on the same map	1520	/* Returns true of op1 and op2 are effectively on the same map
…		…
1703	}	1534	}
1704		1535
1705	object *	1536	object *
1706	maptile::insert (object *op, int x, int y, object *originator, int flags)	1537	maptile::insert (object *op, int x, int y, object *originator, int flags)
1707	{	1538	{
1708	if (!op->flag [FLAG_REMOVED])
1709	op->remove ();
1710
1711	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1539	return insert_ob_in_map_at (op, this, originator, flags, x, y);
1712	}	1540	}
1713		1541
		1542	region *
		1543	maptile::region (int x, int y) const
		1544	{
		1545	if (regions
		1546	&& regionmap
		1547	&& !OUT_OF_REAL_MAP (this, x, y))
		1548	if (struct region *reg = regionmap [regions [y * width + x]])
		1549	return reg;
		1550
		1551	if (default_region)
		1552	return default_region;
		1553
		1554	return ::region::default_region ();
		1555	}
		1556
		1557	/* picks a random object from a style map.
		1558	*/
		1559	object *
		1560	maptile::pick_random_object (rand_gen &gen) const
		1561	{
		1562	/* while returning a null object will result in a crash, that
		1563	* is actually preferable to an infinite loop. That is because
		1564	* most servers will automatically restart in case of crash.
		1565	* Change the logic on getting the random space - shouldn't make
		1566	* any difference, but this seems clearer to me.
		1567	*/
		1568	for (int i = 1000; --i;)
		1569	{
		1570	object *pick = at (gen (width), gen (height)).bot;
		1571
		1572	// do not prefer big monsters just because they are big.
		1573	if (pick && pick->is_head ())
		1574	return pick->head_ ();
		1575	}
		1576
		1577	// instead of crashing in the unlikely(?) case, try to return *something*
		1578	return archetype::find ("bug");
		1579	}
		1580
		1581	void
		1582	maptile::play_sound (faceidx sound, int x, int y) const
		1583	{
		1584	if (!sound)
		1585	return;
		1586
		1587	for_all_players_on_map (pl, this)
		1588	if (client *ns = pl->ns)
		1589	{
		1590	int dx = x - pl->ob->x;
		1591	int dy = y - pl->ob->y;
		1592
		1593	int distance = idistance (dx, dy);
		1594
		1595	if (distance <= MAX_SOUND_DISTANCE)
		1596	ns->play_sound (sound, dx, dy);
		1597	}
		1598	}
		1599
		1600	void
		1601	maptile::say_msg (const char *msg, int x, int y) const
		1602	{
		1603	for_all_players (pl)
		1604	if (client *ns = pl->ns)
		1605	{
		1606	int dx = x - pl->ob->x;
		1607	int dy = y - pl->ob->y;
		1608
		1609	int distance = idistance (dx, dy);
		1610
		1611	if (distance <= MAX_SOUND_DISTANCE)
		1612	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1613	}
		1614	}
		1615
		1616	static void
		1617	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1618	{
		1619	// clip to map to the left
		1620	if (x0 < 0)
		1621	{
		1622	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1623	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1624
		1625	if (x1 < 0) // entirely to the left
		1626	return;
		1627
		1628	x0 = 0;
		1629	}
		1630
		1631	// clip to map to the right
		1632	if (x1 > m->width)
		1633	{
		1634	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1635	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1636
		1637	if (x0 > m->width) // entirely to the right
		1638	return;
		1639
		1640	x1 = m->width;
		1641	}
		1642
		1643	// clip to map above
		1644	if (y0 < 0)
		1645	{
		1646	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1647	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1648
		1649	if (y1 < 0) // entirely above
		1650	return;
		1651
		1652	y0 = 0;
		1653	}
		1654
		1655	// clip to map below
		1656	if (y1 > m->height)
		1657	{
		1658	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1659	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1660
		1661	if (y0 > m->height) // entirely below
		1662	return;
		1663
		1664	y1 = m->height;
		1665	}
		1666
		1667	// if we get here, the rect is within the current map
		1668	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1669
		1670	r->m = m;
		1671	r->x0 = x0;
		1672	r->y0 = y0;
		1673	r->x1 = x1;
		1674	r->y1 = y1;
		1675	r->dx = dx;
		1676	r->dy = dy;
		1677	}
		1678
		1679	maprect *
		1680	maptile::split_to_tiles (int x0, int y0, int x1, int y1)
		1681	{
		1682	static dynbuf buf (sizeof (maprect) * 8, sizeof (maprect) * 8);
		1683	buf.clear ();
		1684
		1685	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1686
		1687	// add end marker
		1688	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1689	r->m = 0;
		1690
		1691	return (maprect *)buf.linearise ();
		1692	}
		1693

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