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Comparing deliantra/server/common/map.C (file contents):
Revision 1.97 by root, Sat Mar 17 21:13:21 2007 UTC vs.
Revision 1.200 by root, Fri May 7 19:46:18 2010 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 (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team	4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
6	* Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
7	*	7	*
8	* 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
9	* 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
10	* the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	* (at your option) any later version.	11	* option) any later version.
12	*	12	*
13	* 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,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License 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	18	* You should have received a copy of the Affero GNU General Public License
19	* 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
20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
21	*	21	*
22	* 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>
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)
175	*/	104	*/
176	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	105	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
177	return 0;	106	return 0;
178		107
179	if (ob->head != NULL)
180	ob = ob->head;	108	ob = ob->head_ ();
181		109
182	/* 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
183	* 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
184	* true. If we get through the entire stack, that must mean	112	* true. If we get through the entire stack, that must mean
185	* ob is blocking it, so return 0.	113	* ob is blocking it, so return 0.
186	*/	114	*/
187	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	115	for (object *tmp = ms.top; tmp; tmp = tmp->below)
188	{	116	{
189		117	if (OB_MOVE_BLOCK (ob, tmp))
190	/* This must be before the checks below. Code for inventory checkers. */
191	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
192	{	118	{
193	/* If last_sp is set, the player/monster needs an object,	119	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
194	* so we check for it. If they don't have it, they can't	120	if (RESULT_INT (0))
195	* pass through this space.	121	return 1;
196	*/	122	else
197	if (tmp->last_sp)	123	continue;
		124
		125	if (tmp->type == CHECK_INV)
198	{	126	{
199	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))
200	return 1;	131	return 1;
201	else	132	}
202	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;
203	}	142	}
204	else	143	else
205	{	144	return 1; // unconditional block
206	/* In this case, the player must not have the object -	145
207	* if they do, they can't pass through.
208	*/
209	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
210	return 1;
211	else
212	continue;
213	}
214	} /* if check_inv */
215	else	146	} else {
216	{	147	// space does not block the ob, directly, but
217	/* Broke apart a big nasty if into several here to make	148	// anything alive that is not a door still
218	* this more readable. first check - if the space blocks	149	// blocks anything
219	* movement, can't move here.	150
220	* second - if a monster, can't move there, unles it is a	151	if (tmp->flag [FLAG_ALIVE]
221	* hidden dm	152	&& tmp->type != DOOR
222	*/	153	&& tmp->head_ () != ob) //TODO: maybe move these check up?
223	if (OB_MOVE_BLOCK (ob, tmp))
224	return 1;
225	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
226	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))
227	return 1;	154	return 1;
228	}	155	}
229
230	}	156	}
		157
231	return 0;	158	return 0;
232	}	159	}
233		160
234	/*	161	/*
235	* 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
236	* This is meant for multi space objects - for single space objecs,	163	* spot. This is meant for multi space objects - for single space objecs,
237	* just calling get_map_blocked and checking that against movement type	164	* just calling get_map_blocked and checking that against movement type
238	* of object. This function goes through all the parts of the	165	* of object. This function goes through all the parts of the multipart
239	* multipart object and makes sure they can be inserted.	166	* object and makes sure they can be inserted.
240	*	167	*
241	* 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.
242	*	169	*
243	* This function has been used to deprecate arch_out_of_map -	170	* This function has been used to deprecate arch_out_of_map -
244	* this function also does that check, and since in most cases,	171	* this function also does that check, and since in most cases,
…		…
255	*	182	*
256	* Note this used to be arch_blocked, but with new movement	183	* Note this used to be arch_blocked, but with new movement
257	* 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
258	* against the move_block values.	185	* against the move_block values.
259	*/	186	*/
260	int	187	bool
261	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	188	object::blocked (maptile *m, int x, int y) const
262	{	189	{
263	archetype *tmp;	190	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
264	int flag;
265	maptile *m1;
266	sint16 sx, sy;
267
268	if (!ob)
269	{
270	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
271	if (flag & P_OUT_OF_MAP)
272	return P_OUT_OF_MAP;
273
274	/* don't have object, so don't know what types would block */
275	return m1->at (sx, sy).move_block;
276	}	191	{
		192	mapxy pos (m, x + tmp->x, y + tmp->y);
277		193
278	for (tmp = ob->arch; tmp; tmp = tmp->more)	194	if (!pos.normalise ())
279	{	195	return 1;
280	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
281		196
282	if (flag & P_OUT_OF_MAP)	197	mapspace &ms = *pos;
283	return P_OUT_OF_MAP;	198
284	if (flag & P_IS_ALIVE)	199	if (ms.flags () & P_IS_ALIVE)
285	return P_IS_ALIVE;	200	return 1;
286		201
287	mapspace &ms = m1->at (sx, sy);	202	/* However, often ob doesn't have any move type
288		203	* (signifying non-moving objects)
289	/* find_first_free_spot() calls this function. However, often
290	* ob doesn't have any move type (when used to place exits)
291	* 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.
292	*/	205	*/
293
294	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)	206	if (!move_type && ms.move_block != MOVE_ALL)
295	continue;	207	continue;
296		208
297	/* 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
298	* head of the object should correspond for the entire object.	210	* head of the object should correspond for the entire object.
299	*/	211	*/
300	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))	212	if (ms.blocks (move_type))
301	return P_NO_PASS;	213	return 1;
302	}	214	}
303		215
304	return 0;	216	return 0;
305	}	217	}
306		218
307	/* When the map is loaded, load_object does not actually insert objects	219	//-GPL
308	* into inventory, but just links them. What this does is go through
309	* and insert them properly.
310	* The object 'container' is the object that contains the inventory.
311	* This is needed so that we can update the containers weight.
312	*/
313	void
314	fix_container (object *container)
315	{
316	object *tmp = container->inv, *next;
317
318	container->inv = 0;
319	while (tmp)
320	{
321	next = tmp->below;
322	if (tmp->inv)
323	fix_container (tmp);
324
325	insert_ob_in_ob (tmp, container);
326	tmp = next;
327	}
328
329	/* sum_weight will go through and calculate what all the containers are
330	* carrying.
331	*/
332	sum_weight (container);
333	}
334		220
335	void	221	void
336	maptile::set_object_flag (int flag, int value)	222	maptile::set_object_flag (int flag, int value)
337	{	223	{
338	if (!spaces)	224	if (!spaces)
…		…
341	for (mapspace *ms = spaces + size (); ms-- > spaces; )	227	for (mapspace *ms = spaces + size (); ms-- > spaces; )
342	for (object *tmp = ms->bot; tmp; tmp = tmp->above)	228	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
343	tmp->flag [flag] = value;	229	tmp->flag [flag] = value;
344	}	230	}
345		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
		259
346	/* 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
347	* 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
348	* 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
349	* they are saved). We do have to look for the old maps that did save	263	* they are saved).
350	* the more sections and not re-add sections for them.
351	*/	264	*/
352	void	265	void
353	maptile::link_multipart_objects ()	266	maptile::link_multipart_objects ()
354	{	267	{
355	if (!spaces)	268	if (!spaces)
356	return;	269	return;
357		270
358	for (mapspace *ms = spaces + size (); ms-- > spaces; )	271	for (mapspace *ms = spaces + size (); ms-- > spaces; )
359	for (object *tmp = ms->bot; tmp; tmp = tmp->above)	272	{
		273	object *op = ms->bot;
		274	while (op)
360	{	275	{
361	/* already multipart - don't do anything more */	276	/* already multipart - don't do anything more */
362	if (!tmp->head && !tmp->more)	277	if (op->head_ () == op && !op->more && op->arch->more)
363	{
364	/* If there is nothing more to this object, this for loop
365	* won't do anything.
366	*/
367	archetype *at;
368	object *last, *op;
369	for (at = tmp->arch->more, last = tmp;
370	at;
371	at = at->more, last = op)
372	{	278	{
373	op = arch_to_object (at);	279	op->remove ();
		280	op->expand_tail ();
374		281
375	/* update x,y coordinates */	282	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
376	op->x += tmp->x;	283	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
377	op->y += tmp->y;	284	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
378	op->head = tmp;
379	op->map = this;
380	last->more = op;
381	op->name = tmp->name;
382	op->title = tmp->title;
383
384	/* we could link all the parts onto tmp, and then just
385	* call insert_ob_in_map once, but the effect is the same,
386	* as insert_ob_in_map will call itself with each part, and
387	* the coding is simpler to just to it here with each part.
388	*/
389	insert_ob_in_map (op, op->map, tmp, 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
390	}	289	}
		290	else
		291	op = op->above;
391	}	292	}
392	}	293	}
393	}	294	}
		295
		296	//-GPL
394		297
395	/*	298	/*
396	* 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
397	* file pointer.	300	* file pointer.
398	*/	301	*/
399	bool	302	bool
400	maptile::_load_objects (object_thawer &f)	303	maptile::_load_objects (object_thawer &f)
401	{	304	{
402	for (;;)	305	for (;;)
403	{	306	{
404	coroapi::cede_every (1000); // cede once in a while	307	coroapi::cede_to_tick (); // cede once in a while
405		308
406	switch (f.kw)	309	switch (f.kw)
407	{	310	{
408	case KW_arch:	311	case KW_arch:
409	if (object *op = object::read (f, this))	312	if (object *op = object::read (f, this))
410	{	313	{
		314	// TODO: why?
411	if (op->inv)	315	if (op->inv)
		316	{
		317	op->carrying = 0;
412	sum_weight (op);	318	op->update_weight ();
		319	}
413		320
414	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	}
415	}	344	}
416		345
417	continue;	346	continue;
418		347
419	case KW_EOF:	348	case KW_EOF:
…		…
432	}	361	}
433		362
434	void	363	void
435	maptile::activate ()	364	maptile::activate ()
436	{	365	{
437	if (!spaces)	366	if (spaces)
438	return;
439
440	for (mapspace *ms = spaces + size (); ms-- > spaces; )	367	for (mapspace *ms = spaces + size (); ms-- > spaces; )
441	for (object *op = ms->bot; op; op = op->above)	368	for (object *op = ms->bot; op; op = op->above)
442	op->activate_recursive ();	369	op->activate_recursive ();
443	}	370	}
444		371
445	void	372	void
446	maptile::deactivate ()	373	maptile::deactivate ()
447	{	374	{
448	if (!spaces)	375	if (spaces)
449	return;
450
451	for (mapspace *ms = spaces + size (); ms-- > spaces; )	376	for (mapspace *ms = spaces + size (); ms-- > spaces; )
452	for (object *op = ms->bot; op; op = op->above)	377	for (object *op = ms->bot; op; op = op->above)
453	op->deactivate_recursive ();	378	op->deactivate_recursive ();
454	}	379	}
455		380
456	bool	381	bool
457	maptile::_save_objects (object_freezer &f, int flags)	382	maptile::_save_objects (object_freezer &f, int flags)
458	{	383	{
459	coroapi::cede ();	384	coroapi::cede_to_tick ();
460		385
461	if (flags & IO_HEADER)	386	if (flags & IO_HEADER)
462	_save_header (f);	387	_save_header (f);
463		388
464	if (!spaces)	389	if (!spaces)
465	return false;	390	return false;
466		391
467	for (int i = 0; i < size (); ++i)	392	for (int i = 0; i < size (); ++i)
468	{	393	{
469	#if 0 // disabled, there still seem to be races somewhere
470	static int cede_count = 0;
471
472	if (cede_count >= 500)
473	{
474	cede_count = 0;
475	coroapi::cede ();
476	}
477	#endif
478
479	int unique = 0;	394	bool unique = 0;
		395
480	for (object *op = spaces [i].bot; op; op = op->above)	396	for (object *op = spaces [i].bot; op; op = op->above)
481	{	397	{
482	// count per-object, but cede only when modification-safe
483	cede_count++;
484
485	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])	398	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
486	unique = 1;
487		399
488	if (!op->can_map_save ())	400	if (expect_false (!op->can_map_save ()))
489	continue;	401	continue;
490		402
491	if (unique || op->flag [FLAG_UNIQUE])	403	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
492	{	404	{
493	if (flags & IO_UNIQUES)	405	if (flags & IO_UNIQUES)
494	op->write (f);	406	op->write (f);
495	}	407	}
496	else if (flags & IO_OBJECTS)	408	else if (expect_true (flags & IO_OBJECTS))
497	op->write (f);	409	op->write (f);
498	}	410	}
499	}	411	}
500		412
501	coroapi::cede ();	413	coroapi::cede_to_tick ();
502		414
503	return true;	415	return true;
504	}
505
506	bool
507	maptile::_load_objects (const char *path, bool skip_header)
508	{
509	object_thawer f (path);
510
511	if (!f)
512	return false;
513
514	f.next ();
515
516	if (skip_header)
517	for (;;)
518	{
519	keyword kw = f.kw;
520	f.skip ();
521	if (kw == KW_end)
522	break;
523	}
524
525	return _load_objects (f);
526	}	416	}
527		417
528	bool	418	bool
529	maptile::_save_objects (const char *path, int flags)	419	maptile::_save_objects (const char *path, int flags)
530	{	420	{
…		…
534	return false;	424	return false;
535		425
536	return freezer.save (path);	426	return freezer.save (path);
537	}	427	}
538		428
539	maptile::maptile ()	429	void
		430	maptile::init ()
540	{	431	{
541	in_memory = MAP_SWAPPED;	432	in_memory = MAP_SWAPPED;
542		433
543	/* 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
544	* map archetype. Mimic that behaviour.	435	* map archetype. Mimic that behaviour.
545	*/	436	*/
546	width = 16;	437	width = 16;
547	height = 16;	438	height = 16;
548	timeout = 300;	439	timeout = 300;
549	max_nrof = 1000; // 1000 items of anything	440	max_items = MAX_ITEM_PER_ACTION;
550	max_volume = 2000000; // 2m³	441	max_volume = 2000000; // 2m³
551	}
552
553	maptile::maptile (int w, int h)
554	{
555	in_memory = MAP_SWAPPED;
556
557	width = w;
558	height = h;
559	reset_timeout = 0;	442	reset_timeout = 0;
560	timeout = 300;
561	enter_x = 0;	443	enter_x = 0;
562	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;
563		458
564	alloc ();	459	alloc ();
565	}	460	}
566		461
567	/*	462	/*
…		…
575	if (spaces)	470	if (spaces)
576	return;	471	return;
577		472
578	spaces = salloc0<mapspace> (size ());	473	spaces = salloc0<mapspace> (size ());
579	}	474	}
		475
		476	//+GPL
580		477
581	/* 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
582	* 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
583	* at a later date.	480	* at a later date.
584	* Called by parse_map_headers below.	481	* Called by parse_map_headers below.
…		…
661	return items;	558	return items;
662	}	559	}
663		560
664	/* 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
665	* the map (or something equivilent) into output_string. */	562	* the map (or something equivilent) into output_string. */
666	static void	563	static const char *
667	print_shop_string (maptile *m, char *output_string)	564	print_shop_string (maptile *m)
668	{	565	{
669	int i;	566	static dynbuf_text buf; buf.clear ();
670	char tmp[MAX_BUF];	567	bool first = true;
671		568
672	strcpy (output_string, "");
673	for (i = 0; i < m->shopitems[0].index; i++)	569	for (int i = 0; i < m->shopitems[0].index; i++)
674	{	570	{
		571	if (!first)
		572	buf << ';';
		573
		574	first = false;
		575
675	if (m->shopitems[i].typenum)	576	if (m->shopitems[i].typenum)
676	{	577	{
677	if (m->shopitems[i].strength)	578	if (m->shopitems[i].strength)
678	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);
679	else	580	else
680	sprintf (tmp, "%s;", m->shopitems[i].name);	581	buf.printf ("%s", m->shopitems[i].name);
681	}	582	}
682	else	583	else
683	{	584	{
684	if (m->shopitems[i].strength)	585	if (m->shopitems[i].strength)
685	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	586	buf.printf ("*:%d", m->shopitems[i].strength);
686	else	587	else
687	sprintf (tmp, "*");	588	buf.printf ("*");
688	}	589	}
689
690	strcat (output_string, tmp);
691	}	590	}
		591
		592	return buf;
692	}	593	}
		594
		595	//-GPL
693		596
694	/* This loads the header information of the map. The header	597	/* This loads the header information of the map. The header
695	* contains things like difficulty, size, timeout, etc.	598	* contains things like difficulty, size, timeout, etc.
696	* 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
697	* addition of tiling, fields beyond that easily named in an	600	* addition of tiling, fields beyond that easily named in an
…		…
705	bool	608	bool
706	maptile::_load_header (object_thawer &thawer)	609	maptile::_load_header (object_thawer &thawer)
707	{	610	{
708	for (;;)	611	for (;;)
709	{	612	{
710	keyword kw = thawer.get_kv ();
711
712	switch (kw)	613	switch (thawer.kw)
713	{	614	{
714	case KW_msg:	615	case KW_msg:
715	thawer.get_ml (KW_endmsg, msg);	616	thawer.get_ml (KW_endmsg, msg);
716	break;	617	break;
717		618
…		…
740	case KW_shopgreed: thawer.get (shopgreed); break;	641	case KW_shopgreed: thawer.get (shopgreed); break;
741	case KW_shopmin: thawer.get (shopmin); break;	642	case KW_shopmin: thawer.get (shopmin); break;
742	case KW_shopmax: thawer.get (shopmax); break;	643	case KW_shopmax: thawer.get (shopmax); break;
743	case KW_shoprace: thawer.get (shoprace); break;	644	case KW_shoprace: thawer.get (shoprace); break;
744	case KW_outdoor: thawer.get (outdoor); break;	645	case KW_outdoor: thawer.get (outdoor); break;
745	case KW_temp: thawer.get (temp); break;
746	case KW_pressure: thawer.get (pressure); break;
747	case KW_humid: thawer.get (humid); break;
748	case KW_windspeed: thawer.get (windspeed); break;
749	case KW_winddir: thawer.get (winddir); break;
750	case KW_sky: thawer.get (sky); break;
751		646
752	case KW_per_player: thawer.get (per_player); break;	647	case KW_per_player: thawer.get (per_player); break;
753	case KW_per_party: thawer.get (per_party); break;	648	case KW_per_party: thawer.get (per_party); break;
		649	case KW_no_reset: thawer.get (no_reset); break;
		650	case KW_no_drop: thawer.get (no_drop); break;
754		651
755	case KW_region: default_region = region::find (thawer.get_str ()); break;	652	case KW_region: thawer.get (default_region); break;
756	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;	653	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
757		654
758	// old names new names	655	// old names new names
759	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;
760	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;
…		…
769	case KW_tile_path_1: thawer.get (tile_path [0]); break;	666	case KW_tile_path_1: thawer.get (tile_path [0]); break;
770	case KW_tile_path_2: thawer.get (tile_path [1]); break;	667	case KW_tile_path_2: thawer.get (tile_path [1]); break;
771	case KW_tile_path_3: thawer.get (tile_path [2]); break;	668	case KW_tile_path_3: thawer.get (tile_path [2]); break;
772	case KW_tile_path_4: thawer.get (tile_path [3]); break;	669	case KW_tile_path_4: thawer.get (tile_path [3]); break;
773		670
		671	case KW_ERROR:
		672	set_key_text (thawer.kw_str, thawer.value);
		673	break;
		674
774	case KW_end:	675	case KW_end:
		676	thawer.next ();
775	return true;	677	return true;
776		678
777	default:	679	default:
778	if (!thawer.parse_error ("map", 0))	680	if (!thawer.parse_error ("map"))
779	return false;	681	return false;
780	break;	682	break;
781	}	683	}
		684
		685	thawer.next ();
782	}	686	}
783		687
784	abort ();	688	abort ();
785	}	689	}
786		690
787	bool	691	//+GPL
788	maptile::_load_header (const char *path)
789	{
790	object_thawer thawer (path);
791
792	if (!thawer)
793	return false;
794
795	return _load_header (thawer);
796	}
797		692
798	/******************************************************************************	693	/******************************************************************************
799	* This is the start of unique map handling code	694	* This is the start of unique map handling code
800	*****************************************************************************/	695	*****************************************************************************/
801		696
…		…
808	int unique = 0;	703	int unique = 0;
809	for (object *op = spaces [i].bot; op; )	704	for (object *op = spaces [i].bot; op; )
810	{	705	{
811	object *above = op->above;	706	object *above = op->above;
812		707
813	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	708	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
814	unique = 1;	709	unique = 1;
815		710
816	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	711	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
817	{
818	op->destroy_inv (false);
819	op->destroy ();	712	op->destroy ();
820	}
821		713
822	op = above;	714	op = above;
823	}	715	}
824	}	716	}
825	}	717	}
826		718
		719	//-GPL
		720
827	bool	721	bool
828	maptile::_save_header (object_freezer &freezer)	722	maptile::_save_header (object_freezer &freezer)
829	{	723	{
830	#define MAP_OUT(k) freezer.put (KW_ ## k, k)	724	#define MAP_OUT(k) freezer.put (KW(k), k)
831	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)	725	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
832		726
833	MAP_OUT2 (arch, "map");	727	MAP_OUT2 (arch, CS(map));
834		728
835	if (name) MAP_OUT (name);	729	if (name) MAP_OUT (name);
836	MAP_OUT (swap_time);	730	MAP_OUT (swap_time);
837	MAP_OUT (reset_time);	731	MAP_OUT (reset_time);
838	MAP_OUT (reset_timeout);	732	MAP_OUT (reset_timeout);
839	MAP_OUT (fixed_resettime);	733	MAP_OUT (fixed_resettime);
		734	MAP_OUT (no_reset);
		735	MAP_OUT (no_drop);
840	MAP_OUT (difficulty);	736	MAP_OUT (difficulty);
841
842	if (default_region) MAP_OUT2 (region, default_region->name);	737	if (default_region) MAP_OUT2 (region, default_region->name);
843		738
844	if (shopitems)	739	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
845	{
846	char shop[MAX_BUF];
847	print_shop_string (this, shop);
848	MAP_OUT2 (shopitems, shop);
849	}
850
851	MAP_OUT (shopgreed);	740	MAP_OUT (shopgreed);
852	MAP_OUT (shopmin);	741	MAP_OUT (shopmin);
853	MAP_OUT (shopmax);	742	MAP_OUT (shopmax);
854	if (shoprace) MAP_OUT (shoprace);	743	if (shoprace) MAP_OUT (shoprace);
855	MAP_OUT (darkness);	744
856	MAP_OUT (width);	745	MAP_OUT (width);
857	MAP_OUT (height);	746	MAP_OUT (height);
858	MAP_OUT (enter_x);	747	MAP_OUT (enter_x);
859	MAP_OUT (enter_y);	748	MAP_OUT (enter_y);
860		749	MAP_OUT (darkness);
861	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
862	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
863
864	MAP_OUT (outdoor);	750	MAP_OUT (outdoor);
865	MAP_OUT (temp);	751
866	MAP_OUT (pressure);	752	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
867	MAP_OUT (humid);	753	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
868	MAP_OUT (windspeed);
869	MAP_OUT (winddir);
870	MAP_OUT (sky);
871		754
872	MAP_OUT (per_player);	755	MAP_OUT (per_player);
873	MAP_OUT (per_party);	756	MAP_OUT (per_party);
874		757
875	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]);
876	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]);
877	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]);
878	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]);
879		762
880	freezer.put (this);	763	freezer.put (this);
881	freezer.put (KW_end);	764	freezer.put (KW(end));
882		765
883	return true;	766	return true;
884	}	767	}
885		768
886	bool	769	bool
…		…
892	return false;	775	return false;
893		776
894	return freezer.save (path);	777	return freezer.save (path);
895	}	778	}
896		779
		780	//+GPL
		781
897	/*	782	/*
898	* Remove and free all objects in the given map.	783	* Remove and free all objects in the given map.
899	*/	784	*/
900	void	785	void
901	maptile::clear ()	786	maptile::clear ()
902	{	787	{
903	sfree (regions, size ()), regions = 0;
904	free (regionmap), regionmap = 0;
905
906	if (spaces)	788	if (spaces)
907	{	789	{
908	for (mapspace *ms = spaces + size (); ms-- > spaces; )	790	for (mapspace *ms = spaces + size (); ms-- > spaces; )
909	while (object *op = ms->bot)	791	while (object *op = ms->bot)
910	{	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
		799	object *head = op->head_ ();
911	if (op->head)	800	if (op == head)
912	op = op->head;
913
914	op->destroy_inv (false);
915	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	}
916	}	807	}
917		808
918	sfree (spaces, size ()), spaces = 0;	809	sfree0 (spaces, size ());
919	}	810	}
920		811
921	if (buttons)	812	if (buttons)
922	free_objectlinkpt (buttons), buttons = 0;	813	free_objectlinkpt (buttons), buttons = 0;
		814
		815	sfree0 (regions, size ());
		816	delete [] regionmap; regionmap = 0;
923	}	817	}
924		818
925	void	819	void
926	maptile::clear_header ()	820	maptile::clear_header ()
927	{	821	{
…		…
959	attachable::do_destroy ();	853	attachable::do_destroy ();
960		854
961	clear ();	855	clear ();
962	}	856	}
963		857
964	/*	858	/* decay and destroy perishable items in a map */
965	* Updates every button on the map (by calling update_button() for them).	859	// TODO: should be done regularly, not on map load?
966	*/
967	void	860	void
968	maptile::update_buttons ()	861	maptile::do_decay_objects ()
969	{	862	{
970	for (oblinkpt *obp = buttons; obp; obp = obp->next)	863	if (!spaces)
971	for (objectlink *ol = obp->link; ol; ol = ol->next)	864	return;
		865
		866	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		867	for (object *above, *op = ms->bot; op; op = above)
972	{	868	{
973	if (!ol->ob)	869	above = op->above;
		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
		875	bool destroy = 0;
		876
		877	if (op->flag [FLAG_IS_FLOOR]
		878	|| op->flag [FLAG_OBJ_ORIGINAL]
		879	|| op->flag [FLAG_UNIQUE]
		880	|| op->flag [FLAG_OVERLAY_FLOOR]
		881	|| op->flag [FLAG_UNPAID]
		882	|| op->is_alive ())
		883	; // do not decay
		884	else if (op->is_weapon ())
974	{	885	{
975	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",	886	op->stats.dam--;
976	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);	887	if (op->stats.dam < 0)
977	continue;	888	destroy = 1;
978	}	889	}
979		890	else if (op->is_armor ())
980	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
981	{	891	{
982	update_button (ol->ob);	892	op->stats.ac--;
983	break;	893	if (op->stats.ac < 0)
		894	destroy = 1;
984	}	895	}
		896	else if (op->type == FOOD)
		897	{
		898	op->stats.food -= rndm (5, 20);
		899	if (op->stats.food < 0)
		900	destroy = 1;
		901	}
		902	else
		903	{
		904	int mat = op->materials;
		905
		906	if (mat & M_PAPER
		907	|| mat & M_LEATHER
		908	|| mat & M_WOOD
		909	|| mat & M_ORGANIC
		910	|| mat & M_CLOTH
		911	|| mat & M_LIQUID
		912	|| (mat & M_IRON && rndm (1, 5) == 1)
		913	|| (mat & M_GLASS && rndm (1, 2) == 1)
		914	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		915	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		916	//|| (mat & M_ICE && temp > 32)
		917	)
		918	destroy = 1;
		919	}
		920
		921	/* adjust overall chance below */
		922	if (destroy && rndm (0, 1))
		923	op->destroy ();
985	}	924	}
986	}	925	}
987		926
988	/*	927	/*
989	* 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.
990	* difficulty does not have a lot to do with character level,	929	* difficulty does not have a lot to do with character level,
991	* 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.
992	*	931	*
993	* 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
994	* 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
995	* have a difficulty set than using this function - human calculation	934	* have a difficulty set rather than using this function - human calculation
996	* is much better than this functions guesswork.	935	* is much better than this function's guesswork.
997	*/	936	*/
998	int	937	int
999	maptile::estimate_difficulty () const	938	maptile::estimate_difficulty () const
1000	{	939	{
1001	long monster_cnt = 0;	940	long monster_cnt = 0;
…		…
1003	sint64 total_exp = 0;	942	sint64 total_exp = 0;
1004		943
1005	for (mapspace *ms = spaces + size (); ms-- > spaces; )	944	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1006	for (object *op = ms->bot; op; op = op->above)	945	for (object *op = ms->bot; op; op = op->above)
1007	{	946	{
1008	if (QUERY_FLAG (op, FLAG_MONSTER))	947	if (op->flag [FLAG_MONSTER])
1009	{	948	{
1010	total_exp += op->stats.exp;	949	total_exp += op->stats.exp;
1011	monster_cnt++;	950	monster_cnt++;
1012	}	951	}
1013		952
1014	if (QUERY_FLAG (op, FLAG_GENERATOR))	953	if (op->flag [FLAG_GENERATOR])
1015	{	954	{
1016	total_exp += op->stats.exp;	955	total_exp += op->stats.exp;
1017		956
1018	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))	957	if (archetype *at = op->other_arch)
		958	{
1019	total_exp += at->clone.stats.exp * 8;	959	total_exp += at->stats.exp * 8;
1020
1021	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	}
1022	}	968	}
1023	}	969	}
1024		970
1025	avgexp = (double) total_exp / monster_cnt;	971	avgexp = (double) total_exp / monster_cnt;
1026		972
…		…
1039	* postive values make it darker, negative make it brighter	985	* postive values make it darker, negative make it brighter
1040	*/	986	*/
1041	int	987	int
1042	maptile::change_map_light (int change)	988	maptile::change_map_light (int change)
1043	{	989	{
1044	int new_level = darkness + change;
1045
1046	/* Nothing to do */	990	/* Nothing to do */
1047	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))	991	if (!change)
1048	return 0;	992	return 0;
1049		993
1050	/* inform all players on the map */	994	/* inform all players on the map */
1051	if (change > 0)	995	if (change > 0)
1052	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");	996	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1053	else	997	else
1054	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");	998	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1055		999
1056	/* Do extra checking. since darkness is a unsigned value,	1000	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1057	* we need to be extra careful about negative values.
1058	* In general, the checks below are only needed if change
1059	* is not +/-1
1060	*/
1061	if (new_level < 0)
1062	darkness = 0;
1063	else if (new_level >= MAX_DARKNESS)
1064	darkness = MAX_DARKNESS;
1065	else
1066	darkness = new_level;
1067		1001
1068	/* All clients need to get re-updated for the change */	1002	/* All clients need to get re-updated for the change */
1069	update_all_map_los (this);	1003	update_all_map_los (this);
		1004
1070	return 1;	1005	return 1;
1071	}	1006	}
1072		1007
1073	/*	1008	/*
1074	* This function updates various attributes about a specific space	1009	* This function updates various attributes about a specific space
…		…
1077	* through, etc)	1012	* through, etc)
1078	*/	1013	*/
1079	void	1014	void
1080	mapspace::update_ ()	1015	mapspace::update_ ()
1081	{	1016	{
1082	object *tmp, *last = 0;	1017	object *last = 0;
1083	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;	1018	uint8 flags = P_UPTODATE;
		1019	sint8 light = 0;
1084	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;
1085		1025
1086	//object *middle = 0;	1026	//object *middle = 0;
1087	//object *top = 0;	1027	//object *top = 0;
1088	//object *floor = 0;	1028	//object *floor = 0;
1089	// this seems to generate better code than using locals, above	1029	// this seems to generate better code than using locals, above
1090	object *&top = faces_obj[0] = 0;	1030	object *&top = faces_obj[0] = 0;
1091	object *&middle = faces_obj[1] = 0;	1031	object *&middle = faces_obj[1] = 0;
1092	object *&floor = faces_obj[2] = 0;	1032	object *&floor = faces_obj[2] = 0;
1093		1033
		1034	object::flags_t allflags; // all flags of all objects or'ed together
		1035
1094	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1036	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1095	{	1037	{
1096	/* This could be made additive I guess (two lights better than	1038	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1097	* one). But if so, it shouldn't be a simple additive - 2
1098	* light bulbs do not illuminate twice as far as once since
1099	* it is a dissapation factor that is cubed.
1100	*/
1101	if (tmp->glow_radius > light)
1102	light = tmp->glow_radius;	1039	light += tmp->glow_radius;
1103		1040
1104	/* This call is needed in order to update objects the player	1041	/* This call is needed in order to update objects the player
1105	* is standing in that have animations (ie, grass, fire, etc).	1042	* is standing in that have animations (ie, grass, fire, etc).
1106	* However, it also causes the look window to be re-drawn	1043	* However, it also causes the look window to be re-drawn
1107	* 3 times each time the player moves, because many of the	1044	* 3 times each time the player moves, because many of the
1108	* functions the move_player calls eventualy call this.	1045	* functions the move_player calls eventualy call this.
1109	*	1046	*
1110	* Always put the player down for drawing.	1047	* Always put the player down for drawing.
1111	*/	1048	*/
1112	if (!tmp->invisible)	1049	if (expect_true (!tmp->invisible))
1113	{	1050	{
1114	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1051	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1115	top = tmp;	1052	top = tmp;
1116	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1053	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1117	{	1054	{
1118	/* 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,
1119	* so should not be visible, so we clear them.	1056	* so should not be visible, so we clear them.
1120	*/	1057	*/
1121	middle = 0;	1058	middle = 0;
1122	top = 0;	1059	top = 0;
1123	floor = tmp;	1060	floor = tmp;
		1061	volume = 0;
		1062	items = 0;
1124	}	1063	}
1125	/* Flag anywhere have high priority */	1064	else
1126	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1127	{	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;
1128	middle = tmp;	1083	middle = tmp;
1129	anywhere = 1;	1084	}
1130	}	1085	}
1131	/* Find the highest visible face around. If equal
1132	* visibilities, we still want the one nearer to the
1133	* top
1134	*/
1135	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1136	middle = tmp;
1137	}
1138
1139	if (tmp == tmp->above)
1140	{
1141	LOG (llevError, "Error in structure of map\n");
1142	exit (-1);
1143	}	1086	}
1144		1087
1145	move_slow |= tmp->move_slow;	1088	move_slow |= tmp->move_slow;
1146	move_block |= tmp->move_block;	1089	move_block |= tmp->move_block;
1147	move_on |= tmp->move_on;	1090	move_on |= tmp->move_on;
1148	move_off |= tmp->move_off;	1091	move_off |= tmp->move_off;
1149	move_allow |= tmp->move_allow;	1092	move_allow |= tmp->move_allow;
1150		1093
1151	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;	1094	allflags |= tmp->flag;
1152	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;	1095
1153	if (tmp->type == PLAYER) flags |= P_PLAYER;	1096	if (tmp->type == PLAYER) flags |= P_PLAYER;
1154	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1097	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1155	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1156	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1157	}	1098	}
1158		1099
1159	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);
1160	this->flags_ = flags;	1111	this->flags_ = flags;
1161	this->move_block = move_block & ~move_allow;	1112	this->move_block = move_block & ~move_allow;
1162	this->move_on = move_on;	1113	this->move_on = move_on;
1163	this->move_off = move_off;	1114	this->move_off = move_off;
1164	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
1165		1118
1166	/* 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),
1167	* 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
1168	* this point.	1121	* this point.
1169	* middle contains the highest visibility face.	1122	* middle contains the highest visibility face.
…		…
1184	* 1) top face is set, need middle to be set.	1137	* 1) top face is set, need middle to be set.
1185	* 2) middle is set, need to set top.	1138	* 2) middle is set, need to set top.
1186	* 3) neither middle or top is set - need to set both.	1139	* 3) neither middle or top is set - need to set both.
1187	*/	1140	*/
1188		1141
1189	for (tmp = last; tmp; tmp = tmp->below)	1142	for (object *tmp = last; tmp; tmp = tmp->below)
1190	{	1143	{
1191	/* 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 */
1192	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1145	if (tmp->flag [FLAG_IS_FLOOR])
1193	break;	1146	break;
1194		1147
1195	/* If two top faces are already set, quit processing */	1148	/* If two top faces are already set, quit processing */
1196	if (top && middle)	1149	if (top && middle)
1197	break;	1150	break;
…		…
1235	faces_obj [1] = middle;	1188	faces_obj [1] = middle;
1236	faces_obj [2] = floor;	1189	faces_obj [2] = floor;
1237	#endif	1190	#endif
1238	}	1191	}
1239		1192
1240	uint64	1193	maptile *
1241	mapspace::volume () const	1194	maptile::tile_available (int dir, bool load)
1242	{	1195	{
1243	uint64 vol = 0;	1196	if (tile_path[dir])
1244
1245	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1246	vol += op->volume ();
1247
1248	return vol;
1249	}
1250
1251	/* this updates the orig_map->tile_map[tile_num] value after finding
1252	* the map. It also takes care of linking back the freshly found
1253	* maps tile_map values if it tiles back to this one. It returns
1254	* the value of orig_map->tile_map[tile_num].
1255	*/
1256	static inline maptile *
1257	find_and_link (maptile *orig_map, int tile_num)
1258	{
1259	maptile *mp = orig_map->tile_map [tile_num];
1260
1261	if (!mp)
1262	{
1263	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
1264
1265	if (!mp)
1266	{
1267	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
1268	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
1269	&orig_map->tile_path[tile_num], &orig_map->path);
1270	mp = new maptile (1, 1);
1271	mp->alloc ();
1272	mp->in_memory = MAP_IN_MEMORY;
1273	}
1274	}	1197	{
		1198	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1199	return tile_map[dir];
1275		1200
1276	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	}
1277		1204
1278	orig_map->tile_map [tile_num] = mp;
1279
1280	// optimisation: back-link map to origin map if euclidean
1281	//TODO: non-euclidean maps MUST GO
1282	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1283	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1284
1285	return mp;	1205	return 0;
1286	}
1287
1288	static inline void
1289	load_and_link (maptile *orig_map, int tile_num)
1290	{
1291	find_and_link (orig_map, tile_num)->load_sync ();
1292	}	1206	}
1293		1207
1294	/* this returns TRUE if the coordinates (x,y) are out of	1208	/* this returns TRUE if the coordinates (x,y) are out of
1295	* map m. This function also takes into account any	1209	* map m. This function also takes into account any
1296	* tiling considerations, loading adjacant maps as needed.	1210	* tiling considerations, loading adjacant maps as needed.
…		…
1309	if (!m)	1223	if (!m)
1310	return 0;	1224	return 0;
1311		1225
1312	if (x < 0)	1226	if (x < 0)
1313	{	1227	{
1314	if (!m->tile_path[3])	1228	if (!m->tile_available (3))
1315	return 1;	1229	return 1;
1316		1230
1317	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1318	find_and_link (m, 3);
1319
1320	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);
1321	}	1232	}
1322		1233
1323	if (x >= m->width)	1234	if (x >= m->width)
1324	{	1235	{
1325	if (!m->tile_path[1])	1236	if (!m->tile_available (1))
1326	return 1;	1237	return 1;
1327		1238
1328	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1329	find_and_link (m, 1);
1330
1331	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);
1332	}	1240	}
1333		1241
1334	if (y < 0)	1242	if (y < 0)
1335	{	1243	{
1336	if (!m->tile_path[0])	1244	if (!m->tile_available (0))
1337	return 1;	1245	return 1;
1338		1246
1339	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1340	find_and_link (m, 0);
1341
1342	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);
1343	}	1248	}
1344		1249
1345	if (y >= m->height)	1250	if (y >= m->height)
1346	{	1251	{
1347	if (!m->tile_path[2])	1252	if (!m->tile_available (2))
1348	return 1;	1253	return 1;
1349
1350	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1351	find_and_link (m, 2);
1352		1254
1353	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);
1354	}	1256	}
1355		1257
1356	/* Simple case - coordinates are within this local	1258	/* Simple case - coordinates are within this local
…		…
1370	maptile *	1272	maptile *
1371	maptile::xy_find (sint16 &x, sint16 &y)	1273	maptile::xy_find (sint16 &x, sint16 &y)
1372	{	1274	{
1373	if (x < 0)	1275	if (x < 0)
1374	{	1276	{
1375	if (!tile_path[3])	1277	if (!tile_available (3))
1376	return 0;	1278	return 0;
1377		1279
1378	find_and_link (this, 3);
1379	x += tile_map[3]->width;	1280	x += tile_map[3]->width;
1380	return tile_map[3]->xy_find (x, y);	1281	return tile_map[3]->xy_find (x, y);
1381	}	1282	}
1382		1283
1383	if (x >= width)	1284	if (x >= width)
1384	{	1285	{
1385	if (!tile_path[1])	1286	if (!tile_available (1))
1386	return 0;	1287	return 0;
1387		1288
1388	find_and_link (this, 1);
1389	x -= width;	1289	x -= width;
1390	return tile_map[1]->xy_find (x, y);	1290	return tile_map[1]->xy_find (x, y);
1391	}	1291	}
1392		1292
1393	if (y < 0)	1293	if (y < 0)
1394	{	1294	{
1395	if (!tile_path[0])	1295	if (!tile_available (0))
1396	return 0;	1296	return 0;
1397		1297
1398	find_and_link (this, 0);
1399	y += tile_map[0]->height;	1298	y += tile_map[0]->height;
1400	return tile_map[0]->xy_find (x, y);	1299	return tile_map[0]->xy_find (x, y);
1401	}	1300	}
1402		1301
1403	if (y >= height)	1302	if (y >= height)
1404	{	1303	{
1405	if (!tile_path[2])	1304	if (!tile_available (2))
1406	return 0;	1305	return 0;
1407		1306
1408	find_and_link (this, 2);
1409	y -= height;	1307	y -= height;
1410	return tile_map[2]->xy_find (x, y);	1308	return tile_map[2]->xy_find (x, y);
1411	}	1309	}
1412		1310
1413	/* Simple case - coordinates are within this local	1311	/* Simple case - coordinates are within this local
…		…
1419	/**	1317	/**
1420	* 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
1421	* map1 to map2 in dx/dy.	1319	* map1 to map2 in dx/dy.
1422	*/	1320	*/
1423	int	1321	int
1424	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1322	adjacent_map (maptile *map1, maptile *map2, int *dx, int *dy)
1425	{	1323	{
1426	if (!map1 || !map2)	1324	if (!map1 || !map2)
1427	return 0;	1325	return 0;
1428		1326
1429	//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
1430	//fix: compare paths instead (this is likely faster, too!)	1328	//fix: compare paths instead (this is likely faster, too!)
1431	if (map1 == map2)	1329	if (map1 == map2)
1432	{	1330	{
1433	*dx = 0;	1331	*dx = 0;
1434	*dy = 0;	1332	*dy = 0;
1435	}	1333	}
1436	else if (map1->tile_map[0] == map2)	1334	else if (map1->tile_available (0, false) == map2)
1437	{ /* up */	1335	{ /* up */
1438	*dx = 0;	1336	*dx = 0;
1439	*dy = -map2->height;	1337	*dy = -map2->height;
1440	}	1338	}
1441	else if (map1->tile_map[1] == map2)	1339	else if (map1->tile_available (1, false) == map2)
1442	{ /* right */	1340	{ /* right */
1443	*dx = map1->width;	1341	*dx = map1->width;
1444	*dy = 0;	1342	*dy = 0;
1445	}	1343	}
1446	else if (map1->tile_map[2] == map2)	1344	else if (map1->tile_available (2, false) == map2)
1447	{ /* down */	1345	{ /* down */
1448	*dx = 0;	1346	*dx = 0;
1449	*dy = map1->height;	1347	*dy = map1->height;
1450	}	1348	}
1451	else if (map1->tile_map[3] == map2)	1349	else if (map1->tile_available (3, false) == map2)
1452	{ /* left */	1350	{ /* left */
1453	*dx = -map2->width;	1351	*dx = -map2->width;
1454	*dy = 0;	1352	*dy = 0;
1455	}	1353	}
1456	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)
1457	{ /* up right */	1355	{ /* up right */
1458	*dx = map1->tile_map[0]->width;	1356	*dx = map1->tile_map[0]->width;
1459	*dy = -map1->tile_map[0]->height;	1357	*dy = -map1->tile_map[0]->height;
1460	}	1358	}
1461	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)
1462	{ /* up left */	1360	{ /* up left */
1463	*dx = -map2->width;	1361	*dx = -map2->width;
1464	*dy = -map1->tile_map[0]->height;	1362	*dy = -map1->tile_map[0]->height;
1465	}	1363	}
1466	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)
1467	{ /* right up */	1365	{ /* right up */
1468	*dx = map1->width;	1366	*dx = map1->width;
1469	*dy = -map2->height;	1367	*dy = -map2->height;
1470	}	1368	}
1471	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)
1472	{ /* right down */	1370	{ /* right down */
1473	*dx = map1->width;	1371	*dx = map1->width;
1474	*dy = map1->tile_map[1]->height;	1372	*dy = map1->tile_map[1]->height;
1475	}	1373	}
1476	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)
1477	{ /* down right */	1375	{ /* down right */
1478	*dx = map1->tile_map[2]->width;	1376	*dx = map1->tile_map[2]->width;
1479	*dy = map1->height;	1377	*dy = map1->height;
1480	}	1378	}
1481	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)
1482	{ /* down left */	1380	{ /* down left */
1483	*dx = -map2->width;	1381	*dx = -map2->width;
1484	*dy = map1->height;	1382	*dy = map1->height;
1485	}	1383	}
1486	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)
1487	{ /* left up */	1385	{ /* left up */
1488	*dx = -map1->tile_map[3]->width;	1386	*dx = -map1->tile_map[3]->width;
1489	*dy = -map2->height;	1387	*dy = -map2->height;
1490	}	1388	}
1491	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)
1492	{ /* left down */	1390	{ /* left down */
1493	*dx = -map1->tile_map[3]->width;	1391	*dx = -map1->tile_map[3]->width;
1494	*dy = map1->tile_map[3]->height;	1392	*dy = map1->tile_map[3]->height;
1495	}	1393	}
1496	else	1394	else
…		…
1535	*	1433	*
1536	* currently, the only flag supported (0x1) is don't translate for	1434	* currently, the only flag supported (0x1) is don't translate for
1537	* closest body part of 'op1'	1435	* closest body part of 'op1'
1538	*/	1436	*/
1539	void	1437	void
1540	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1438	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
1541	{	1439	{
1542	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))
1543	{	1441	{
1544	/* be conservative and fill in _some_ data */	1442	/* be conservative and fill in _some_ data */
1545	retval->distance = 10000;	1443	retval->distance = 10000;
1546	retval->distance_x = 10000;	1444	retval->distance_x = 10000;
1547	retval->distance_y = 10000;	1445	retval->distance_y = 10000;
1548	retval->direction = 0;	1446	retval->direction = 0;
1549	retval->part = 0;	1447	retval->part = 0;
1550	}	1448	}
1551	else	1449	else
1552	{	1450	{
1553	object *best;
1554
1555	retval->distance_x += op2->x - op1->x;	1451	retval->distance_x += op2->x - op1->x;
1556	retval->distance_y += op2->y - op1->y;	1452	retval->distance_y += op2->y - op1->y;
1557		1453
1558	best = op1;	1454	object *best = op1;
		1455
1559	/* If this is multipart, find the closest part now */	1456	/* If this is multipart, find the closest part now */
1560	if (!(flags & 0x1) && op1->more)	1457	if (!(flags & 1) && op1->more)
1561	{	1458	{
1562	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);
1563		1460
1564	/* 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
1565	* distance instead of doing all that work above again	1462	* distance instead of doing all that work above again
1566	* since the distance fields we set above are positive in the	1463	* since the distance fields we set above are positive in the
1567	* same axis as is used for multipart objects, the simply arithmetic	1464	* same axis as is used for multipart objects, the simply arithmetic
1568	* below works.	1465	* below works.
1569	*/	1466	*/
1570	for (object *tmp = op1->more; tmp; tmp = tmp->more)	1467	for (object *tmp = op1->more; tmp; tmp = tmp->more)
1571	{	1468	{
1572	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);
1573	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1470
1574	if (tmpi < best_distance)	1471	if (tmpi < best_distance)
1575	{	1472	{
1576	best_distance = tmpi;	1473	best_distance = tmpi;
1577	best = tmp;	1474	best = tmp;
1578	}	1475	}
1579	}	1476	}
1580		1477
1581	if (best != op1)	1478	if (best != op1)
1582	{	1479	{
1583	retval->distance_x += op1->x - best->x;	1480	retval->distance_x += op1->x - best->x;
1584	retval->distance_y += op1->y - best->y;	1481	retval->distance_y += op1->y - best->y;
1585	}	1482	}
1586	}	1483	}
1587		1484
1588	retval->part = best;	1485	retval->part = best;
1589	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));
1590	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1487	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1591	}	1488	}
1592	}	1489	}
1593		1490
1594	/* 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
1595	* the first parameter being an object, it instead is the map	1492	* the first parameter being an object, it instead is the map
…		…
1600	* 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
1601	* 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
1602	* field of the rv_vector is set to NULL.	1499	* field of the rv_vector is set to NULL.
1603	*/	1500	*/
1604	void	1501	void
1605	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)
1606	{	1503	{
1607	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))
1608	{	1505	{
1609	/* be conservative and fill in _some_ data */	1506	/* be conservative and fill in _some_ data */
1610	retval->distance = 100000;	1507	retval->distance = 100000;
1611	retval->distance_x = 32767;	1508	retval->distance_x = 32767;
1612	retval->distance_y = 32767;	1509	retval->distance_y = 32767;
1613	retval->direction = 0;	1510	retval->direction = 0;
1614	retval->part = 0;	1511	retval->part = 0;
1615	}	1512	}
1616	else	1513	else
1617	{	1514	{
1618	retval->distance_x += op2->x - x;	1515	retval->distance_x += op2->x - x;
1619	retval->distance_y += op2->y - y;	1516	retval->distance_y += op2->y - y;
1620		1517
1621	retval->part = NULL;	1518	retval->part = 0;
1622	retval->distance = idistance (retval->distance_x, retval->distance_y);	1519	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1623	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1520	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1624	}	1521	}
1625	}	1522	}
1626		1523
1627	/* 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
1628	* (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
…		…
1638	int dx, dy;	1535	int dx, dy;
1639		1536
1640	return adjacent_map (op1->map, op2->map, &dx, &dy);	1537	return adjacent_map (op1->map, op2->map, &dx, &dy);
1641	}	1538	}
1642		1539
		1540	//-GPL
		1541
1643	object *	1542	object *
1644	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)
1645	{	1544	{
1646	if (!op->flag [FLAG_REMOVED])
1647	op->remove ();
1648
1649	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);
1650	}	1546	}
1651		1547
1652	region *	1548	region *
1653	maptile::region (int x, int y) const	1549	maptile::region (int x, int y) const
…		…
1662	return default_region;	1558	return default_region;
1663		1559
1664	return ::region::default_region ();	1560	return ::region::default_region ();
1665	}	1561	}
1666		1562
		1563	//+GPL
		1564
1667	/* picks a random object from a style map.	1565	/* picks a random object from a style map.
1668	* Redone by MSW so it should be faster and not use static
1669	* variables to generate tables.
1670	*/	1566	*/
1671	object *	1567	object *
1672	maptile::pick_random_object () const	1568	maptile::pick_random_object (rand_gen &gen) const
1673	{	1569	{
1674	/* while returning a null object will result in a crash, that	1570	/* while returning a null object will result in a crash, that
1675	* is actually preferable to an infinite loop. That is because	1571	* is actually preferable to an infinite loop. That is because
1676	* most servers will automatically restart in case of crash.	1572	* most servers will automatically restart in case of crash.
1677	* Change the logic on getting the random space - shouldn't make	1573	* Change the logic on getting the random space - shouldn't make
1678	* any difference, but this seems clearer to me.	1574	* any difference, but this seems clearer to me.
1679	*/	1575	*/
1680	for (int i = 1000; --i;)	1576	for (int i = 1000; --i;)
1681	{	1577	{
1682	object *pick = at (rndm (width), rndm (height)).bot;	1578	object *pick = at (gen (width), gen (height)).bot;
1683		1579
1684	// do not prefer big monsters just because they are big.	1580	// must be head: do not prefer big monsters just because they are big.
1685	if (pick && pick->head_ () == pick)	1581	if (pick && pick->is_head ())
1686	return pick->head_ ();	1582	return pick;
1687	}	1583	}
1688		1584
1689	// instead of crashing in the unlikely(?) case, try to return *something*	1585	// instead of crashing in the unlikely(?) case, try to return *something*
1690	return get_archetype ("blocked");	1586	return archetype::find (shstr_bug);
1691	}	1587	}
1692		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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