ViewVC Help

View File | Revision Log | Show Annotations | Download File

/cvs/deliantra/server/common/map.C

Comparing deliantra/server/common/map.C (file contents):
Revision 1.96 by root, Thu Mar 15 14:23:02 2007 UTC vs.
Revision 1.192 by root, Sun Apr 18 05:57:58 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, "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)
412	sum_weight (op);	316	op->update_weight ();
413		317
414	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	318	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		319	{
		320	// we insert manually because
		321	// a) its way faster
		322	// b) we remove manually, too, and there are good reasons for that
		323	// c) it's correct
		324	mapspace &ms = at (op->x, op->y);
		325
		326	op->flag [FLAG_REMOVED] = false;
		327
		328	op->above = 0;
		329	op->below = ms.top;
		330
		331	*(ms.top ? &ms.top->above : &ms.bot) = op;
		332
		333	ms.top = op;
		334	ms.flags_ = 0;
		335	}
		336	else
		337	{
		338	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		339	op->destroy ();
		340	}
415	}	341	}
416		342
417	continue;	343	continue;
418		344
419	case KW_EOF:	345	case KW_EOF:
…		…
432	}	358	}
433		359
434	void	360	void
435	maptile::activate ()	361	maptile::activate ()
436	{	362	{
437	if (!spaces)	363	if (spaces)
438	return;
439
440	for (mapspace *ms = spaces + size (); ms-- > spaces; )	364	for (mapspace *ms = spaces + size (); ms-- > spaces; )
441	for (object *op = ms->bot; op; op = op->above)	365	for (object *op = ms->bot; op; op = op->above)
442	op->activate_recursive ();	366	op->activate_recursive ();
443	}	367	}
444		368
445	void	369	void
446	maptile::deactivate ()	370	maptile::deactivate ()
447	{	371	{
448	if (!spaces)	372	if (spaces)
449	return;
450
451	for (mapspace *ms = spaces + size (); ms-- > spaces; )	373	for (mapspace *ms = spaces + size (); ms-- > spaces; )
452	for (object *op = ms->bot; op; op = op->above)	374	for (object *op = ms->bot; op; op = op->above)
453	op->deactivate_recursive ();	375	op->deactivate_recursive ();
454	}	376	}
455		377
456	bool	378	bool
457	maptile::_save_objects (object_freezer &f, int flags)	379	maptile::_save_objects (object_freezer &f, int flags)
458	{	380	{
459	static int cede_count = 0;	381	coroapi::cede_to_tick ();
460		382
461	if (flags & IO_HEADER)	383	if (flags & IO_HEADER)
462	_save_header (f);	384	_save_header (f);
463		385
464	if (!spaces)	386	if (!spaces)
465	return false;	387	return false;
466		388
467	for (int i = 0; i < size (); ++i)	389	for (int i = 0; i < size (); ++i)
468	{	390	{
469	if (cede_count >= 500)
470	{
471	cede_count = 0;
472	coroapi::cede ();
473	}
474
475	int unique = 0;	391	bool unique = 0;
		392
476	for (object *op = spaces [i].bot; op; op = op->above)	393	for (object *op = spaces [i].bot; op; op = op->above)
477	{	394	{
478	// count per-object, but cede only when modification-safe
479	cede_count++;
480
481	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])	395	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
482	unique = 1;
483		396
484	if (!op->can_map_save ())	397	if (expect_false (!op->can_map_save ()))
485	continue;	398	continue;
486		399
487	if (unique || op->flag [FLAG_UNIQUE])	400	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
488	{	401	{
489	if (flags & IO_UNIQUES)	402	if (flags & IO_UNIQUES)
490	op->write (f);	403	op->write (f);
491	}	404	}
492	else if (flags & IO_OBJECTS)	405	else if (expect_true (flags & IO_OBJECTS))
493	op->write (f);	406	op->write (f);
494	}	407	}
495	}	408	}
496		409
		410	coroapi::cede_to_tick ();
		411
497	return true;	412	return true;
498	}
499
500	bool
501	maptile::_load_objects (const char *path, bool skip_header)
502	{
503	object_thawer f (path);
504
505	if (!f)
506	return false;
507
508	f.next ();
509
510	if (skip_header)
511	for (;;)
512	{
513	keyword kw = f.kw;
514	f.skip ();
515	if (kw == KW_end)
516	break;
517	}
518
519	return _load_objects (f);
520	}	413	}
521		414
522	bool	415	bool
523	maptile::_save_objects (const char *path, int flags)	416	maptile::_save_objects (const char *path, int flags)
524	{	417	{
…		…
528	return false;	421	return false;
529		422
530	return freezer.save (path);	423	return freezer.save (path);
531	}	424	}
532		425
533	maptile::maptile ()	426	void
		427	maptile::init ()
534	{	428	{
535	in_memory = MAP_SWAPPED;	429	in_memory = MAP_SWAPPED;
536		430
537	/* The maps used to pick up default x and y values from the	431	/* The maps used to pick up default x and y values from the
538	* map archetype. Mimic that behaviour.	432	* map archetype. Mimic that behaviour.
539	*/	433	*/
540	width = 16;	434	width = 16;
541	height = 16;	435	height = 16;
542	timeout = 300;	436	timeout = 300;
543	max_nrof = 1000; // 1000 items of anything	437	max_items = MAX_ITEM_PER_ACTION;
544	max_volume = 2000000; // 2m³	438	max_volume = 2000000; // 2m³
545	}
546
547	maptile::maptile (int w, int h)
548	{
549	in_memory = MAP_SWAPPED;
550
551	width = w;
552	height = h;
553	reset_timeout = 0;	439	reset_timeout = 0;
554	timeout = 300;
555	enter_x = 0;	440	enter_x = 0;
556	enter_y = 0;	441	enter_y = 0;
		442	}
		443
		444	maptile::maptile ()
		445	{
		446	init ();
		447	}
		448
		449	maptile::maptile (int w, int h)
		450	{
		451	init ();
		452
		453	width = w;
		454	height = h;
557		455
558	alloc ();	456	alloc ();
559	}	457	}
560		458
561	/*	459	/*
…		…
569	if (spaces)	467	if (spaces)
570	return;	468	return;
571		469
572	spaces = salloc0<mapspace> (size ());	470	spaces = salloc0<mapspace> (size ());
573	}	471	}
		472
		473	//+GPL
574		474
575	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	475	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
576	* corresponding to that string. Memory is allocated for this, it must be freed	476	* corresponding to that string. Memory is allocated for this, it must be freed
577	* at a later date.	477	* at a later date.
578	* Called by parse_map_headers below.	478	* Called by parse_map_headers below.
…		…
655	return items;	555	return items;
656	}	556	}
657		557
658	/* opposite of parse string, this puts the string that was originally fed in to	558	/* opposite of parse string, this puts the string that was originally fed in to
659	* the map (or something equivilent) into output_string. */	559	* the map (or something equivilent) into output_string. */
660	static void	560	static const char *
661	print_shop_string (maptile *m, char *output_string)	561	print_shop_string (maptile *m)
662	{	562	{
663	int i;	563	static dynbuf_text buf; buf.clear ();
664	char tmp[MAX_BUF];
665		564
666	strcpy (output_string, "");
667	for (i = 0; i < m->shopitems[0].index; i++)	565	for (int i = 0; i < m->shopitems[0].index; i++)
668	{	566	{
669	if (m->shopitems[i].typenum)	567	if (m->shopitems[i].typenum)
670	{	568	{
671	if (m->shopitems[i].strength)	569	if (m->shopitems[i].strength)
672	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	570	buf.printf ("%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
673	else	571	else
674	sprintf (tmp, "%s;", m->shopitems[i].name);	572	buf.printf ("%s;", m->shopitems[i].name);
675	}	573	}
676	else	574	else
677	{	575	{
678	if (m->shopitems[i].strength)	576	if (m->shopitems[i].strength)
679	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	577	buf.printf ("*:%d;", m->shopitems[i].strength);
680	else	578	else
681	sprintf (tmp, "*");	579	buf.printf ("*");
682	}	580	}
683
684	strcat (output_string, tmp);
685	}	581	}
		582
		583	return buf;
686	}	584	}
		585
		586	//-GPL
687		587
688	/* This loads the header information of the map. The header	588	/* This loads the header information of the map. The header
689	* contains things like difficulty, size, timeout, etc.	589	* contains things like difficulty, size, timeout, etc.
690	* this used to be stored in the map object, but with the	590	* this used to be stored in the map object, but with the
691	* addition of tiling, fields beyond that easily named in an	591	* addition of tiling, fields beyond that easily named in an
…		…
699	bool	599	bool
700	maptile::_load_header (object_thawer &thawer)	600	maptile::_load_header (object_thawer &thawer)
701	{	601	{
702	for (;;)	602	for (;;)
703	{	603	{
704	keyword kw = thawer.get_kv ();
705
706	switch (kw)	604	switch (thawer.kw)
707	{	605	{
708	case KW_msg:	606	case KW_msg:
709	thawer.get_ml (KW_endmsg, msg);	607	thawer.get_ml (KW_endmsg, msg);
710	break;	608	break;
711		609
…		…
734	case KW_shopgreed: thawer.get (shopgreed); break;	632	case KW_shopgreed: thawer.get (shopgreed); break;
735	case KW_shopmin: thawer.get (shopmin); break;	633	case KW_shopmin: thawer.get (shopmin); break;
736	case KW_shopmax: thawer.get (shopmax); break;	634	case KW_shopmax: thawer.get (shopmax); break;
737	case KW_shoprace: thawer.get (shoprace); break;	635	case KW_shoprace: thawer.get (shoprace); break;
738	case KW_outdoor: thawer.get (outdoor); break;	636	case KW_outdoor: thawer.get (outdoor); break;
739	case KW_temp: thawer.get (temp); break;
740	case KW_pressure: thawer.get (pressure); break;
741	case KW_humid: thawer.get (humid); break;
742	case KW_windspeed: thawer.get (windspeed); break;
743	case KW_winddir: thawer.get (winddir); break;
744	case KW_sky: thawer.get (sky); break;
745		637
746	case KW_per_player: thawer.get (per_player); break;	638	case KW_per_player: thawer.get (per_player); break;
747	case KW_per_party: thawer.get (per_party); break;	639	case KW_per_party: thawer.get (per_party); break;
		640	case KW_no_reset: thawer.get (no_reset); break;
		641	case KW_no_drop: thawer.get (no_drop); break;
748		642
749	case KW_region: default_region = region::find (thawer.get_str ()); break;	643	case KW_region: default_region = region::find (thawer.get_str ()); break;
750	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;	644	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
751		645
752	// old names new names	646	// old names new names
…		…
763	case KW_tile_path_1: thawer.get (tile_path [0]); break;	657	case KW_tile_path_1: thawer.get (tile_path [0]); break;
764	case KW_tile_path_2: thawer.get (tile_path [1]); break;	658	case KW_tile_path_2: thawer.get (tile_path [1]); break;
765	case KW_tile_path_3: thawer.get (tile_path [2]); break;	659	case KW_tile_path_3: thawer.get (tile_path [2]); break;
766	case KW_tile_path_4: thawer.get (tile_path [3]); break;	660	case KW_tile_path_4: thawer.get (tile_path [3]); break;
767		661
		662	case KW_ERROR:
		663	set_key_text (thawer.kw_str, thawer.value);
		664	break;
		665
768	case KW_end:	666	case KW_end:
		667	thawer.next ();
769	return true;	668	return true;
770		669
771	default:	670	default:
772	if (!thawer.parse_error ("map", 0))	671	if (!thawer.parse_error ("map"))
773	return false;	672	return false;
774	break;	673	break;
775	}	674	}
		675
		676	thawer.next ();
776	}	677	}
777		678
778	abort ();	679	abort ();
779	}	680	}
780		681
781	bool	682	//+GPL
782	maptile::_load_header (const char *path)
783	{
784	object_thawer thawer (path);
785
786	if (!thawer)
787	return false;
788
789	return _load_header (thawer);
790	}
791		683
792	/******************************************************************************	684	/******************************************************************************
793	* This is the start of unique map handling code	685	* This is the start of unique map handling code
794	*****************************************************************************/	686	*****************************************************************************/
795		687
…		…
802	int unique = 0;	694	int unique = 0;
803	for (object *op = spaces [i].bot; op; )	695	for (object *op = spaces [i].bot; op; )
804	{	696	{
805	object *above = op->above;	697	object *above = op->above;
806		698
807	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	699	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
808	unique = 1;	700	unique = 1;
809		701
810	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	702	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
811	{
812	op->destroy_inv (false);
813	op->destroy ();	703	op->destroy ();
814	}
815		704
816	op = above;	705	op = above;
817	}	706	}
818	}	707	}
819	}	708	}
820		709
		710	//-GPL
		711
821	bool	712	bool
822	maptile::_save_header (object_freezer &freezer)	713	maptile::_save_header (object_freezer &freezer)
823	{	714	{
824	#define MAP_OUT(k) freezer.put (KW_ ## k, k)	715	#define MAP_OUT(k) freezer.put (KW(k), k)
825	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)	716	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
826		717
827	MAP_OUT2 (arch, "map");	718	MAP_OUT2 (arch, CS(map));
828		719
829	if (name) MAP_OUT (name);	720	if (name) MAP_OUT (name);
830	MAP_OUT (swap_time);	721	MAP_OUT (swap_time);
831	MAP_OUT (reset_time);	722	MAP_OUT (reset_time);
832	MAP_OUT (reset_timeout);	723	MAP_OUT (reset_timeout);
833	MAP_OUT (fixed_resettime);	724	MAP_OUT (fixed_resettime);
		725	MAP_OUT (no_reset);
		726	MAP_OUT (no_drop);
834	MAP_OUT (difficulty);	727	MAP_OUT (difficulty);
835
836	if (default_region) MAP_OUT2 (region, default_region->name);	728	if (default_region) MAP_OUT2 (region, default_region->name);
837		729
838	if (shopitems)	730	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
839	{
840	char shop[MAX_BUF];
841	print_shop_string (this, shop);
842	MAP_OUT2 (shopitems, shop);
843	}
844
845	MAP_OUT (shopgreed);	731	MAP_OUT (shopgreed);
846	MAP_OUT (shopmin);	732	MAP_OUT (shopmin);
847	MAP_OUT (shopmax);	733	MAP_OUT (shopmax);
848	if (shoprace) MAP_OUT (shoprace);	734	if (shoprace) MAP_OUT (shoprace);
849	MAP_OUT (darkness);	735
850	MAP_OUT (width);	736	MAP_OUT (width);
851	MAP_OUT (height);	737	MAP_OUT (height);
852	MAP_OUT (enter_x);	738	MAP_OUT (enter_x);
853	MAP_OUT (enter_y);	739	MAP_OUT (enter_y);
854		740	MAP_OUT (darkness);
855	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
856	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
857
858	MAP_OUT (outdoor);	741	MAP_OUT (outdoor);
859	MAP_OUT (temp);	742
860	MAP_OUT (pressure);	743	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
861	MAP_OUT (humid);	744	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
862	MAP_OUT (windspeed);
863	MAP_OUT (winddir);
864	MAP_OUT (sky);
865		745
866	MAP_OUT (per_player);	746	MAP_OUT (per_player);
867	MAP_OUT (per_party);	747	MAP_OUT (per_party);
868		748
869	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);	749	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
870	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);	750	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
871	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);	751	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
872	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);	752	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
873		753
874	freezer.put (this);	754	freezer.put (this);
875	freezer.put (KW_end);	755	freezer.put (KW(end));
876		756
877	return true;	757	return true;
878	}	758	}
879		759
880	bool	760	bool
…		…
886	return false;	766	return false;
887		767
888	return freezer.save (path);	768	return freezer.save (path);
889	}	769	}
890		770
		771	//+GPL
		772
891	/*	773	/*
892	* Remove and free all objects in the given map.	774	* Remove and free all objects in the given map.
893	*/	775	*/
894	void	776	void
895	maptile::clear ()	777	maptile::clear ()
896	{	778	{
897	sfree (regions, size ()), regions = 0;
898	free (regionmap), regionmap = 0;
899
900	if (spaces)	779	if (spaces)
901	{	780	{
902	for (mapspace *ms = spaces + size (); ms-- > spaces; )	781	for (mapspace *ms = spaces + size (); ms-- > spaces; )
903	while (object *op = ms->bot)	782	while (object *op = ms->bot)
904	{	783	{
		784	// manually remove, as to not trigger anything
		785	if (ms->bot = op->above)
		786	ms->bot->below = 0;
		787
		788	op->flag [FLAG_REMOVED] = true;
		789
		790	object *head = op->head_ ();
905	if (op->head)	791	if (op == head)
906	op = op->head;
907
908	op->destroy_inv (false);
909	op->destroy ();	792	op->destroy ();
		793	else if (head->map != op->map)
		794	{
		795	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
		796	head->destroy ();
		797	}
910	}	798	}
911		799
912	sfree (spaces, size ()), spaces = 0;	800	sfree0 (spaces, size ());
913	}	801	}
914		802
915	if (buttons)	803	if (buttons)
916	free_objectlinkpt (buttons), buttons = 0;	804	free_objectlinkpt (buttons), buttons = 0;
		805
		806	sfree0 (regions, size ());
		807	delete [] regionmap; regionmap = 0;
917	}	808	}
918		809
919	void	810	void
920	maptile::clear_header ()	811	maptile::clear_header ()
921	{	812	{
…		…
953	attachable::do_destroy ();	844	attachable::do_destroy ();
954		845
955	clear ();	846	clear ();
956	}	847	}
957		848
958	/*	849	/* decay and destroy perishable items in a map */
959	* Updates every button on the map (by calling update_button() for them).	850	// TODO: should be done regularly, not on map load?
960	*/
961	void	851	void
962	maptile::update_buttons ()	852	maptile::do_decay_objects ()
963	{	853	{
964	for (oblinkpt *obp = buttons; obp; obp = obp->next)	854	if (!spaces)
965	for (objectlink *ol = obp->link; ol; ol = ol->next)	855	return;
		856
		857	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		858	for (object *above, *op = ms->bot; op; op = above)
966	{	859	{
967	if (!ol->ob)	860	above = op->above;
		861
		862	// do not decay anything above unique floor tiles (yet :)
		863	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		864	break;
		865
		866	bool destroy = 0;
		867
		868	if (op->flag [FLAG_IS_FLOOR]
		869	|| op->flag [FLAG_OBJ_ORIGINAL]
		870	|| op->flag [FLAG_UNIQUE]
		871	|| op->flag [FLAG_OVERLAY_FLOOR]
		872	|| op->flag [FLAG_UNPAID]
		873	|| op->is_alive ())
		874	; // do not decay
		875	else if (op->is_weapon ())
968	{	876	{
969	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",	877	op->stats.dam--;
970	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);	878	if (op->stats.dam < 0)
971	continue;	879	destroy = 1;
972	}	880	}
973		881	else if (op->is_armor ())
974	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
975	{	882	{
976	update_button (ol->ob);	883	op->stats.ac--;
977	break;	884	if (op->stats.ac < 0)
		885	destroy = 1;
978	}	886	}
		887	else if (op->type == FOOD)
		888	{
		889	op->stats.food -= rndm (5, 20);
		890	if (op->stats.food < 0)
		891	destroy = 1;
		892	}
		893	else
		894	{
		895	int mat = op->materials;
		896
		897	if (mat & M_PAPER
		898	|| mat & M_LEATHER
		899	|| mat & M_WOOD
		900	|| mat & M_ORGANIC
		901	|| mat & M_CLOTH
		902	|| mat & M_LIQUID
		903	|| (mat & M_IRON && rndm (1, 5) == 1)
		904	|| (mat & M_GLASS && rndm (1, 2) == 1)
		905	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		906	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		907	//|| (mat & M_ICE && temp > 32)
		908	)
		909	destroy = 1;
		910	}
		911
		912	/* adjust overall chance below */
		913	if (destroy && rndm (0, 1))
		914	op->destroy ();
979	}	915	}
980	}	916	}
981		917
982	/*	918	/*
983	* This routine is supposed to find out the difficulty of the map.	919	* This routine is supposed to find out the difficulty of the map.
984	* difficulty does not have a lot to do with character level,	920	* difficulty does not have a lot to do with character level,
985	* but does have a lot to do with treasure on the map.	921	* but does have a lot to do with treasure on the map.
986	*	922	*
987	* Difficulty can now be set by the map creature. If the value stored	923	* Difficulty can now be set by the map creator. If the value stored
988	* in the map is zero, then use this routine. Maps should really	924	* in the map is zero, then use this routine. Maps should really
989	* have a difficulty set than using this function - human calculation	925	* have a difficulty set rather than using this function - human calculation
990	* is much better than this functions guesswork.	926	* is much better than this function's guesswork.
991	*/	927	*/
992	int	928	int
993	maptile::estimate_difficulty () const	929	maptile::estimate_difficulty () const
994	{	930	{
995	long monster_cnt = 0;	931	long monster_cnt = 0;
…		…
997	sint64 total_exp = 0;	933	sint64 total_exp = 0;
998		934
999	for (mapspace *ms = spaces + size (); ms-- > spaces; )	935	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1000	for (object *op = ms->bot; op; op = op->above)	936	for (object *op = ms->bot; op; op = op->above)
1001	{	937	{
1002	if (QUERY_FLAG (op, FLAG_MONSTER))	938	if (op->flag [FLAG_MONSTER])
1003	{	939	{
1004	total_exp += op->stats.exp;	940	total_exp += op->stats.exp;
1005	monster_cnt++;	941	monster_cnt++;
1006	}	942	}
1007		943
1008	if (QUERY_FLAG (op, FLAG_GENERATOR))	944	if (op->flag [FLAG_GENERATOR])
1009	{	945	{
1010	total_exp += op->stats.exp;	946	total_exp += op->stats.exp;
1011		947
1012	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))	948	if (archetype *at = op->other_arch)
		949	{
1013	total_exp += at->clone.stats.exp * 8;	950	total_exp += at->stats.exp * 8;
1014
1015	monster_cnt++;	951	monster_cnt++;
		952	}
		953
		954	for (object *inv = op->inv; inv; inv = inv->below)
		955	{
		956	total_exp += op->stats.exp * 8;
		957	monster_cnt++;
		958	}
1016	}	959	}
1017	}	960	}
1018		961
1019	avgexp = (double) total_exp / monster_cnt;	962	avgexp = (double) total_exp / monster_cnt;
1020		963
…		…
1033	* postive values make it darker, negative make it brighter	976	* postive values make it darker, negative make it brighter
1034	*/	977	*/
1035	int	978	int
1036	maptile::change_map_light (int change)	979	maptile::change_map_light (int change)
1037	{	980	{
1038	int new_level = darkness + change;
1039
1040	/* Nothing to do */	981	/* Nothing to do */
1041	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))	982	if (!change)
1042	return 0;	983	return 0;
1043		984
1044	/* inform all players on the map */	985	/* inform all players on the map */
1045	if (change > 0)	986	if (change > 0)
1046	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");	987	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1047	else	988	else
1048	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");	989	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1049		990
1050	/* Do extra checking. since darkness is a unsigned value,	991	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1051	* we need to be extra careful about negative values.
1052	* In general, the checks below are only needed if change
1053	* is not +/-1
1054	*/
1055	if (new_level < 0)
1056	darkness = 0;
1057	else if (new_level >= MAX_DARKNESS)
1058	darkness = MAX_DARKNESS;
1059	else
1060	darkness = new_level;
1061		992
1062	/* All clients need to get re-updated for the change */	993	/* All clients need to get re-updated for the change */
1063	update_all_map_los (this);	994	update_all_map_los (this);
		995
1064	return 1;	996	return 1;
1065	}	997	}
1066		998
1067	/*	999	/*
1068	* This function updates various attributes about a specific space	1000	* This function updates various attributes about a specific space
…		…
1071	* through, etc)	1003	* through, etc)
1072	*/	1004	*/
1073	void	1005	void
1074	mapspace::update_ ()	1006	mapspace::update_ ()
1075	{	1007	{
1076	object *tmp, *last = 0;	1008	object *last = 0;
1077	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;	1009	uint8 flags = P_UPTODATE;
		1010	sint8 light = 0;
1078	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1011	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1012	uint64_t volume = 0;
		1013	uint32_t items = 0;
		1014	object *anywhere = 0;
		1015	uint8_t middle_visibility = 0;
1079		1016
1080	//object *middle = 0;	1017	//object *middle = 0;
1081	//object *top = 0;	1018	//object *top = 0;
1082	//object *floor = 0;	1019	//object *floor = 0;
1083	// this seems to generate better code than using locals, above	1020	// this seems to generate better code than using locals, above
1084	object *&top = faces_obj[0] = 0;	1021	object *&top = faces_obj[0] = 0;
1085	object *&middle = faces_obj[1] = 0;	1022	object *&middle = faces_obj[1] = 0;
1086	object *&floor = faces_obj[2] = 0;	1023	object *&floor = faces_obj[2] = 0;
1087		1024
		1025	object::flags_t allflags; // all flags of all objects or'ed together
		1026
1088	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1027	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1089	{	1028	{
1090	/* This could be made additive I guess (two lights better than	1029	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1091	* one). But if so, it shouldn't be a simple additive - 2
1092	* light bulbs do not illuminate twice as far as once since
1093	* it is a dissapation factor that is cubed.
1094	*/
1095	if (tmp->glow_radius > light)
1096	light = tmp->glow_radius;	1030	light += tmp->glow_radius;
1097		1031
1098	/* This call is needed in order to update objects the player	1032	/* This call is needed in order to update objects the player
1099	* is standing in that have animations (ie, grass, fire, etc).	1033	* is standing in that have animations (ie, grass, fire, etc).
1100	* However, it also causes the look window to be re-drawn	1034	* However, it also causes the look window to be re-drawn
1101	* 3 times each time the player moves, because many of the	1035	* 3 times each time the player moves, because many of the
1102	* functions the move_player calls eventualy call this.	1036	* functions the move_player calls eventualy call this.
1103	*	1037	*
1104	* Always put the player down for drawing.	1038	* Always put the player down for drawing.
1105	*/	1039	*/
1106	if (!tmp->invisible)	1040	if (expect_true (!tmp->invisible))
1107	{	1041	{
1108	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1042	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1109	top = tmp;	1043	top = tmp;
1110	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1044	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1111	{	1045	{
1112	/* If we got a floor, that means middle and top were below it,	1046	/* If we got a floor, that means middle and top were below it,
1113	* so should not be visible, so we clear them.	1047	* so should not be visible, so we clear them.
1114	*/	1048	*/
1115	middle = 0;	1049	middle = 0;
1116	top = 0;	1050	top = 0;
1117	floor = tmp;	1051	floor = tmp;
		1052	volume = 0;
		1053	items = 0;
1118	}	1054	}
1119	/* Flag anywhere have high priority */	1055	else
1120	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1121	{	1056	{
		1057	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1058	{
		1059	++items;
		1060	volume += tmp->volume ();
		1061	}
		1062
		1063	/* Flag anywhere have high priority */
		1064	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
		1065	anywhere = tmp;
		1066
		1067	/* Find the highest visible face around. If equal
		1068	* visibilities, we still want the one nearer to the
		1069	* top
		1070	*/
		1071	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
		1072	{
		1073	middle_visibility = ::faces [tmp->face].visibility;
1122	middle = tmp;	1074	middle = tmp;
1123	anywhere = 1;	1075	}
1124	}	1076	}
1125	/* Find the highest visible face around. If equal
1126	* visibilities, we still want the one nearer to the
1127	* top
1128	*/
1129	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1130	middle = tmp;
1131	}
1132
1133	if (tmp == tmp->above)
1134	{
1135	LOG (llevError, "Error in structure of map\n");
1136	exit (-1);
1137	}	1077	}
1138		1078
1139	move_slow |= tmp->move_slow;	1079	move_slow |= tmp->move_slow;
1140	move_block |= tmp->move_block;	1080	move_block |= tmp->move_block;
1141	move_on |= tmp->move_on;	1081	move_on |= tmp->move_on;
1142	move_off |= tmp->move_off;	1082	move_off |= tmp->move_off;
1143	move_allow |= tmp->move_allow;	1083	move_allow |= tmp->move_allow;
1144		1084
1145	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;	1085	allflags |= tmp->flag;
1146	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;	1086
1147	if (tmp->type == PLAYER) flags |= P_PLAYER;	1087	if (tmp->type == PLAYER) flags |= P_PLAYER;
1148	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1088	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1149	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1150	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1151	}	1089	}
1152		1090
1153	this->light = light;	1091	// FLAG_SEE_ANYWHERE takes precedence
		1092	if (anywhere)
		1093	middle = anywhere;
		1094
		1095	// ORing all flags together and checking them here is much faster
		1096	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
		1097	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1098	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1099	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1100
		1101	this->light = min (light, MAX_LIGHT_RADIUS);
1154	this->flags_ = flags;	1102	this->flags_ = flags;
1155	this->move_block = move_block & ~move_allow;	1103	this->move_block = move_block & ~move_allow;
1156	this->move_on = move_on;	1104	this->move_on = move_on;
1157	this->move_off = move_off;	1105	this->move_off = move_off;
1158	this->move_slow = move_slow;	1106	this->move_slow = move_slow;
		1107	this->volume_ = (volume + 1023) / 1024;
		1108	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
1159		1109
1160	/* At this point, we have a floor face (if there is a floor),	1110	/* At this point, we have a floor face (if there is a floor),
1161	* and the floor is set - we are not going to touch it at	1111	* and the floor is set - we are not going to touch it at
1162	* this point.	1112	* this point.
1163	* middle contains the highest visibility face.	1113	* middle contains the highest visibility face.
…		…
1178	* 1) top face is set, need middle to be set.	1128	* 1) top face is set, need middle to be set.
1179	* 2) middle is set, need to set top.	1129	* 2) middle is set, need to set top.
1180	* 3) neither middle or top is set - need to set both.	1130	* 3) neither middle or top is set - need to set both.
1181	*/	1131	*/
1182		1132
1183	for (tmp = last; tmp; tmp = tmp->below)	1133	for (object *tmp = last; tmp; tmp = tmp->below)
1184	{	1134	{
1185	/* Once we get to a floor, stop, since we already have a floor object */	1135	/* Once we get to a floor, stop, since we already have a floor object */
1186	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1136	if (tmp->flag [FLAG_IS_FLOOR])
1187	break;	1137	break;
1188		1138
1189	/* If two top faces are already set, quit processing */	1139	/* If two top faces are already set, quit processing */
1190	if (top && middle)	1140	if (top && middle)
1191	break;	1141	break;
…		…
1229	faces_obj [1] = middle;	1179	faces_obj [1] = middle;
1230	faces_obj [2] = floor;	1180	faces_obj [2] = floor;
1231	#endif	1181	#endif
1232	}	1182	}
1233		1183
1234	uint64	1184	maptile *
1235	mapspace::volume () const	1185	maptile::tile_available (int dir, bool load)
1236	{	1186	{
1237	uint64 vol = 0;	1187	if (tile_path[dir])
1238
1239	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1240	vol += op->volume ();
1241
1242	return vol;
1243	}
1244
1245	/* this updates the orig_map->tile_map[tile_num] value after finding
1246	* the map. It also takes care of linking back the freshly found
1247	* maps tile_map values if it tiles back to this one. It returns
1248	* the value of orig_map->tile_map[tile_num].
1249	*/
1250	static inline maptile *
1251	find_and_link (maptile *orig_map, int tile_num)
1252	{
1253	maptile *mp = orig_map->tile_map [tile_num];
1254
1255	if (!mp)
1256	{
1257	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
1258
1259	if (!mp)
1260	{
1261	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
1262	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
1263	&orig_map->tile_path[tile_num], &orig_map->path);
1264	mp = new maptile (1, 1);
1265	mp->alloc ();
1266	mp->in_memory = MAP_IN_MEMORY;
1267	}
1268	}	1188	{
		1189	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1190	return tile_map[dir];
1269		1191
1270	int dest_tile = (tile_num + 2) % 4;	1192	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1193	return tile_map[dir];
		1194	}
1271		1195
1272	orig_map->tile_map [tile_num] = mp;
1273
1274	// optimisation: back-link map to origin map if euclidean
1275	//TODO: non-euclidean maps MUST GO
1276	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1277	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1278
1279	return mp;	1196	return 0;
1280	}
1281
1282	static inline void
1283	load_and_link (maptile *orig_map, int tile_num)
1284	{
1285	find_and_link (orig_map, tile_num)->load_sync ();
1286	}	1197	}
1287		1198
1288	/* this returns TRUE if the coordinates (x,y) are out of	1199	/* this returns TRUE if the coordinates (x,y) are out of
1289	* map m. This function also takes into account any	1200	* map m. This function also takes into account any
1290	* tiling considerations, loading adjacant maps as needed.	1201	* tiling considerations, loading adjacant maps as needed.
…		…
1303	if (!m)	1214	if (!m)
1304	return 0;	1215	return 0;
1305		1216
1306	if (x < 0)	1217	if (x < 0)
1307	{	1218	{
1308	if (!m->tile_path[3])	1219	if (!m->tile_available (3))
1309	return 1;	1220	return 1;
1310		1221
1311	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1312	find_and_link (m, 3);
1313
1314	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);	1222	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
1315	}	1223	}
1316		1224
1317	if (x >= m->width)	1225	if (x >= m->width)
1318	{	1226	{
1319	if (!m->tile_path[1])	1227	if (!m->tile_available (1))
1320	return 1;	1228	return 1;
1321		1229
1322	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1323	find_and_link (m, 1);
1324
1325	return out_of_map (m->tile_map[1], x - m->width, y);	1230	return out_of_map (m->tile_map[1], x - m->width, y);
1326	}	1231	}
1327		1232
1328	if (y < 0)	1233	if (y < 0)
1329	{	1234	{
1330	if (!m->tile_path[0])	1235	if (!m->tile_available (0))
1331	return 1;	1236	return 1;
1332		1237
1333	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1334	find_and_link (m, 0);
1335
1336	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);	1238	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
1337	}	1239	}
1338		1240
1339	if (y >= m->height)	1241	if (y >= m->height)
1340	{	1242	{
1341	if (!m->tile_path[2])	1243	if (!m->tile_available (2))
1342	return 1;	1244	return 1;
1343
1344	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1345	find_and_link (m, 2);
1346		1245
1347	return out_of_map (m->tile_map[2], x, y - m->height);	1246	return out_of_map (m->tile_map[2], x, y - m->height);
1348	}	1247	}
1349		1248
1350	/* Simple case - coordinates are within this local	1249	/* Simple case - coordinates are within this local
…		…
1364	maptile *	1263	maptile *
1365	maptile::xy_find (sint16 &x, sint16 &y)	1264	maptile::xy_find (sint16 &x, sint16 &y)
1366	{	1265	{
1367	if (x < 0)	1266	if (x < 0)
1368	{	1267	{
1369	if (!tile_path[3])	1268	if (!tile_available (3))
1370	return 0;	1269	return 0;
1371		1270
1372	find_and_link (this, 3);
1373	x += tile_map[3]->width;	1271	x += tile_map[3]->width;
1374	return tile_map[3]->xy_find (x, y);	1272	return tile_map[3]->xy_find (x, y);
1375	}	1273	}
1376		1274
1377	if (x >= width)	1275	if (x >= width)
1378	{	1276	{
1379	if (!tile_path[1])	1277	if (!tile_available (1))
1380	return 0;	1278	return 0;
1381		1279
1382	find_and_link (this, 1);
1383	x -= width;	1280	x -= width;
1384	return tile_map[1]->xy_find (x, y);	1281	return tile_map[1]->xy_find (x, y);
1385	}	1282	}
1386		1283
1387	if (y < 0)	1284	if (y < 0)
1388	{	1285	{
1389	if (!tile_path[0])	1286	if (!tile_available (0))
1390	return 0;	1287	return 0;
1391		1288
1392	find_and_link (this, 0);
1393	y += tile_map[0]->height;	1289	y += tile_map[0]->height;
1394	return tile_map[0]->xy_find (x, y);	1290	return tile_map[0]->xy_find (x, y);
1395	}	1291	}
1396		1292
1397	if (y >= height)	1293	if (y >= height)
1398	{	1294	{
1399	if (!tile_path[2])	1295	if (!tile_available (2))
1400	return 0;	1296	return 0;
1401		1297
1402	find_and_link (this, 2);
1403	y -= height;	1298	y -= height;
1404	return tile_map[2]->xy_find (x, y);	1299	return tile_map[2]->xy_find (x, y);
1405	}	1300	}
1406		1301
1407	/* Simple case - coordinates are within this local	1302	/* Simple case - coordinates are within this local
…		…
1418	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1313	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
1419	{	1314	{
1420	if (!map1 || !map2)	1315	if (!map1 || !map2)
1421	return 0;	1316	return 0;
1422		1317
1423	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded	1318	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
1424	//fix: compare paths instead (this is likely faster, too!)	1319	//fix: compare paths instead (this is likely faster, too!)
1425	if (map1 == map2)	1320	if (map1 == map2)
1426	{	1321	{
1427	*dx = 0;	1322	*dx = 0;
1428	*dy = 0;	1323	*dy = 0;
…		…
1529	*	1424	*
1530	* currently, the only flag supported (0x1) is don't translate for	1425	* currently, the only flag supported (0x1) is don't translate for
1531	* closest body part of 'op1'	1426	* closest body part of 'op1'
1532	*/	1427	*/
1533	void	1428	void
1534	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1429	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
1535	{	1430	{
1536	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1431	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
1537	{	1432	{
1538	/* be conservative and fill in _some_ data */	1433	/* be conservative and fill in _some_ data */
1539	retval->distance = 10000;	1434	retval->distance = 10000;
1540	retval->distance_x = 10000;	1435	retval->distance_x = 10000;
1541	retval->distance_y = 10000;	1436	retval->distance_y = 10000;
1542	retval->direction = 0;	1437	retval->direction = 0;
1543	retval->part = 0;	1438	retval->part = 0;
1544	}	1439	}
1545	else	1440	else
1546	{	1441	{
1547	object *best;
1548
1549	retval->distance_x += op2->x - op1->x;	1442	retval->distance_x += op2->x - op1->x;
1550	retval->distance_y += op2->y - op1->y;	1443	retval->distance_y += op2->y - op1->y;
1551		1444
1552	best = op1;	1445	object *best = op1;
		1446
1553	/* If this is multipart, find the closest part now */	1447	/* If this is multipart, find the closest part now */
1554	if (!(flags & 0x1) && op1->more)	1448	if (!(flags & 1) && op1->more)
1555	{	1449	{
1556	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1450	int best_distance = idistance (retval->distance_x, retval->distance_y);
1557		1451
1558	/* we just take the offset of the piece to head to figure	1452	/* we just take the offset of the piece to head to figure
1559	* distance instead of doing all that work above again	1453	* distance instead of doing all that work above again
1560	* since the distance fields we set above are positive in the	1454	* since the distance fields we set above are positive in the
1561	* same axis as is used for multipart objects, the simply arithmetic	1455	* same axis as is used for multipart objects, the simply arithmetic
1562	* below works.	1456	* below works.
1563	*/	1457	*/
1564	for (object *tmp = op1->more; tmp; tmp = tmp->more)	1458	for (object *tmp = op1->more; tmp; tmp = tmp->more)
1565	{	1459	{
1566	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1460	int tmpi = idistance (op1->x - tmp->x + retval->distance_x, op1->y - tmp->y + retval->distance_y);
1567	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1461
1568	if (tmpi < best_distance)	1462	if (tmpi < best_distance)
1569	{	1463	{
1570	best_distance = tmpi;	1464	best_distance = tmpi;
1571	best = tmp;	1465	best = tmp;
1572	}	1466	}
1573	}	1467	}
1574		1468
1575	if (best != op1)	1469	if (best != op1)
1576	{	1470	{
1577	retval->distance_x += op1->x - best->x;	1471	retval->distance_x += op1->x - best->x;
1578	retval->distance_y += op1->y - best->y;	1472	retval->distance_y += op1->y - best->y;
1579	}	1473	}
1580	}	1474	}
1581		1475
1582	retval->part = best;	1476	retval->part = best;
1583	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));	1477	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1584	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1478	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
1585	}	1479	}
1586	}	1480	}
1587		1481
1588	/* this is basically the same as get_rangevector above, but instead of	1482	/* this is basically the same as get_rangevector above, but instead of
…		…
1610	else	1504	else
1611	{	1505	{
1612	retval->distance_x += op2->x - x;	1506	retval->distance_x += op2->x - x;
1613	retval->distance_y += op2->y - y;	1507	retval->distance_y += op2->y - y;
1614		1508
1615	retval->part = NULL;	1509	retval->part = 0;
1616	retval->distance = idistance (retval->distance_x, retval->distance_y);	1510	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1617	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1511	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
1618	}	1512	}
1619	}	1513	}
1620		1514
1621	/* Returns true of op1 and op2 are effectively on the same map	1515	/* Returns true of op1 and op2 are effectively on the same map
…		…
1632	int dx, dy;	1526	int dx, dy;
1633		1527
1634	return adjacent_map (op1->map, op2->map, &dx, &dy);	1528	return adjacent_map (op1->map, op2->map, &dx, &dy);
1635	}	1529	}
1636		1530
		1531	//-GPL
		1532
1637	object *	1533	object *
1638	maptile::insert (object *op, int x, int y, object *originator, int flags)	1534	maptile::insert (object *op, int x, int y, object *originator, int flags)
1639	{	1535	{
1640	if (!op->flag [FLAG_REMOVED])
1641	op->remove ();
1642
1643	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1536	return insert_ob_in_map_at (op, this, originator, flags, x, y);
1644	}	1537	}
1645		1538
1646	region *	1539	region *
1647	maptile::region (int x, int y) const	1540	maptile::region (int x, int y) const
…		…
1656	return default_region;	1549	return default_region;
1657		1550
1658	return ::region::default_region ();	1551	return ::region::default_region ();
1659	}	1552	}
1660		1553
		1554	//+GPL
		1555
1661	/* picks a random object from a style map.	1556	/* picks a random object from a style map.
1662	* Redone by MSW so it should be faster and not use static
1663	* variables to generate tables.
1664	*/	1557	*/
1665	object *	1558	object *
1666	maptile::pick_random_object () const	1559	maptile::pick_random_object (rand_gen &gen) const
1667	{	1560	{
1668	/* while returning a null object will result in a crash, that	1561	/* while returning a null object will result in a crash, that
1669	* is actually preferable to an infinite loop. That is because	1562	* is actually preferable to an infinite loop. That is because
1670	* most servers will automatically restart in case of crash.	1563	* most servers will automatically restart in case of crash.
1671	* Change the logic on getting the random space - shouldn't make	1564	* Change the logic on getting the random space - shouldn't make
1672	* any difference, but this seems clearer to me.	1565	* any difference, but this seems clearer to me.
1673	*/	1566	*/
1674	for (int i = 1000; --i;)	1567	for (int i = 1000; --i;)
1675	{	1568	{
1676	object *pick = at (rndm (width), rndm (height)).bot;	1569	object *pick = at (gen (width), gen (height)).bot;
1677		1570
1678	// do not prefer big monsters just because they are big.	1571	// must be head: do not prefer big monsters just because they are big.
1679	if (pick && pick->head_ () == pick)	1572	if (pick && pick->is_head ())
1680	return pick->head_ ();	1573	return pick;
1681	}	1574	}
1682		1575
1683	// instead of crashing in the unlikely(?) case, try to return *something*	1576	// instead of crashing in the unlikely(?) case, try to return *something*
1684	return get_archetype ("blocked");	1577	return archetype::find (shstr_bug);
1685	}	1578	}
1686		1579
		1580	//-GPL
		1581
		1582	void
		1583	maptile::play_sound (faceidx sound, int x, int y) const
		1584	{
		1585	if (!sound)
		1586	return;
		1587
		1588	for_all_players_on_map (pl, this)
		1589	if (client *ns = pl->ns)
		1590	{
		1591	int dx = x - pl->ob->x;
		1592	int dy = y - pl->ob->y;
		1593
		1594	int distance = idistance (dx, dy);
		1595
		1596	if (distance <= MAX_SOUND_DISTANCE)
		1597	ns->play_sound (sound, dx, dy);
		1598	}
		1599	}
		1600
		1601	void
		1602	maptile::say_msg (const char *msg, int x, int y) const
		1603	{
		1604	for_all_players (pl)
		1605	if (client *ns = pl->ns)
		1606	{
		1607	int dx = x - pl->ob->x;
		1608	int dy = y - pl->ob->y;
		1609
		1610	int distance = idistance (dx, dy);
		1611
		1612	if (distance <= MAX_SOUND_DISTANCE)
		1613	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1614	}
		1615	}
		1616
		1617	dynbuf mapwalk_buf (sizeof (maprect) * 25, sizeof (maprect) * 25);
		1618
		1619	static void
		1620	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1621	{
		1622	// clip to map to the left
		1623	if (x0 < 0)
		1624	{
		1625	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1626	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1627
		1628	if (x1 < 0) // entirely to the left
		1629	return;
		1630
		1631	x0 = 0;
		1632	}
		1633
		1634	// clip to map to the right
		1635	if (x1 > m->width)
		1636	{
		1637	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1638	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1639
		1640	if (x0 > m->width) // entirely to the right
		1641	return;
		1642
		1643	x1 = m->width;
		1644	}
		1645
		1646	// clip to map above
		1647	if (y0 < 0)
		1648	{
		1649	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1650	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1651
		1652	if (y1 < 0) // entirely above
		1653	return;
		1654
		1655	y0 = 0;
		1656	}
		1657
		1658	// clip to map below
		1659	if (y1 > m->height)
		1660	{
		1661	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1662	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1663
		1664	if (y0 > m->height) // entirely below
		1665	return;
		1666
		1667	y1 = m->height;
		1668	}
		1669
		1670	// if we get here, the rect is within the current map
		1671	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1672
		1673	r->m = m;
		1674	r->x0 = x0;
		1675	r->y0 = y0;
		1676	r->x1 = x1;
		1677	r->y1 = y1;
		1678	r->dx = dx;
		1679	r->dy = dy;
		1680	}
		1681
		1682	maprect *
		1683	maptile::split_to_tiles (dynbuf &buf, int x0, int y0, int x1, int y1)
		1684	{
		1685	buf.clear ();
		1686
		1687	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1688
		1689	// add end marker
		1690	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1691	r->m = 0;
		1692
		1693	return (maprect *)buf.linearise ();
		1694	}
		1695

Diff Legend

–	Removed lines
+	Added lines
<	Changed lines
>	Changed lines