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Comparing deliantra/server/common/map.C (file contents):
Revision 1.61 by root, Sun Dec 31 17:17:22 2006 UTC vs.
Revision 1.180 by root, Thu Jan 14 23:46:14 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 (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	#include <global.h>
25	#include <funcpoint.h>
26
27	#include <loader.h>
28	#include <unistd.h>	25	#include <unistd.h>
29		26
		27	#include "global.h"
		28	#include "loader.h"
30	#include "path.h"	29	#include "path.h"
31		30
32	/*	31	//+GPL
33	* This makes a path absolute outside the world of Crossfire.
34	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
35	* and returns the pointer to a static array containing the result.
36	* it really should be called create_mapname
37	*/
38	const char *
39	create_pathname (const char *name)
40	{
41	static char buf[MAX_BUF];
42		32
43	/* Why? having extra / doesn't confuse unix anyplace? Dependancies	33	sint8 maptile::outdoor_darkness;
44	* someplace else in the code? msw 2-17-97
45	*/
46	if (*name == '/')
47	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
48	else
49	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
50	return (buf);
51	}
52
53	/*
54	* same as create_pathname, but for the overlay maps.
55	*/
56	const char *
57	create_overlay_pathname (const char *name)
58	{
59	static char buf[MAX_BUF];
60
61	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
62	* someplace else in the code? msw 2-17-97
63	*/
64	if (*name == '/')
65	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
66	else
67	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
68	return (buf);
69	}
70
71	/*
72	* same as create_pathname, but for the template maps.
73	*/
74	const char *
75	create_template_pathname (const char *name)
76	{
77	static char buf[MAX_BUF];
78
79	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
80	* someplace else in the code? msw 2-17-97
81	*/
82	if (*name == '/')
83	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
84	else
85	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
86	return (buf);
87	}
88
89	/*
90	* This makes absolute path to the itemfile where unique objects
91	* will be saved. Converts '/' to '@'. I think it's essier maintain
92	* files than full directory structure, but if this is problem it can
93	* be changed.
94	*/
95	static const char *
96	create_items_path (const char *s)
97	{
98	static char buf[MAX_BUF];
99	char *t;
100
101	if (*s == '/')
102	s++;
103
104	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
105
106	for (t = buf + strlen (buf); *s; s++, t++)
107	if (*s == '/')
108	*t = '@';
109	else
110	*t = *s;
111	*t = 0;
112	return (buf);
113	}
114
115	/*
116	* This function checks if a file with the given path exists.
117	* -1 is returned if it fails, otherwise the mode of the file
118	* is returned.
119	* It tries out all the compression suffixes listed in the uncomp[] array.
120	*
121	* If prepend_dir is set, then we call create_pathname (which prepends
122	* libdir & mapdir). Otherwise, we assume the name given is fully
123	* complete.
124	* Only the editor actually cares about the writablity of this -
125	* the rest of the code only cares that the file is readable.
126	* when the editor goes away, the call to stat should probably be
127	* replaced by an access instead (similar to the windows one, but
128	* that seems to be missing the prepend_dir processing
129	*/
130	int
131	check_path (const char *name, int prepend_dir)
132	{
133	char buf[MAX_BUF];
134
135	char *endbuf;
136	struct stat statbuf;
137	int mode = 0;
138
139	if (prepend_dir)
140	strcpy (buf, create_pathname (name));
141	else
142	strcpy (buf, name);
143
144	/* old method (strchr(buf, '\0')) seemd very odd to me -
145	* this method should be equivalant and is clearer.
146	* Can not use strcat because we need to cycle through
147	* all the names.
148	*/
149	endbuf = buf + strlen (buf);
150
151	if (stat (buf, &statbuf))
152	return -1;
153	if (!S_ISREG (statbuf.st_mode))
154	return (-1);
155
156	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
157	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
158	mode |= 4;
159
160	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
161	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
162	mode |= 2;
163
164	return (mode);
165	}
166		34
167	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	35	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
168	* one function that just returns a P_.. value (see map.h)	36	* one function that just returns a P_.. value (see map.h)
169	* it will also do map translation for tiled maps, returning	37	* it will also do map translation for tiled maps, returning
170	* new values into newmap, nx, and ny. Any and all of those	38	* new values into newmap, nx, and ny. Any and all of those
…		…
205	* by the caller.	73	* by the caller.
206	*/	74	*/
207	int	75	int
208	blocked_link (object *ob, maptile *m, int sx, int sy)	76	blocked_link (object *ob, maptile *m, int sx, int sy)
209	{	77	{
210	object *tmp;
211	int mflags, blocked;
212
213	/* Make sure the coordinates are valid - they should be, as caller should	78	/* Make sure the coordinates are valid - they should be, as caller should
214	* have already checked this.	79	* have already checked this.
215	*/	80	*/
216	if (OUT_OF_REAL_MAP (m, sx, sy))	81	if (OUT_OF_REAL_MAP (m, sx, sy))
217	{	82	{
218	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");	83	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");
219	return 1;	84	return 1;
220	}	85	}
221		86
222	/* Save some cycles - instead of calling get_map_flags(), just get the value	87	mapspace &ms = m->at (sx, sy);
223	* directly.
224	*/
225	mflags = m->at (sx, sy).flags ();
226		88
227	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	89	int mflags = ms.flags ();
		90	int blocked = ms.move_block;
228		91
229	/* If space is currently not blocked by anything, no need to	92	/* If space is currently not blocked by anything, no need to
230	* go further. Not true for players - all sorts of special	93	* go further. Not true for players - all sorts of special
231	* things we need to do for players.	94	* things we need to do for players.
232	*/	95	*/
233	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	96	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))
234	return 0;	97	return 0;
235		98
236	/* if there isn't anytyhing alive on this space, and this space isn't	99	/* if there isn't anything alive on this space, and this space isn't
237	* otherwise blocked, we can return now. Only if there is a living	100	* otherwise blocked, we can return now. Only if there is a living
238	* creature do we need to investigate if it is part of this creature	101	* creature do we need to investigate if it is part of this creature
239	* or another. Likewise, only if something is blocking us do we	102	* or another. Likewise, only if something is blocking us do we
240	* need to investigate if there is a special circumstance that would	103	* need to investigate if there is a special circumstance that would
241	* let the player through (inventory checkers for example)	104	* let the player through (inventory checkers for example)
242	*/	105	*/
243	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	106	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
244	return 0;	107	return 0;
245		108
246	if (ob->head != NULL)
247	ob = ob->head;	109	ob = ob->head_ ();
248		110
249	/* We basically go through the stack of objects, and if there is	111	/* We basically go through the stack of objects, and if there is
250	* some other object that has NO_PASS or FLAG_ALIVE set, return	112	* some other object that has NO_PASS or FLAG_ALIVE set, return
251	* true. If we get through the entire stack, that must mean	113	* true. If we get through the entire stack, that must mean
252	* ob is blocking it, so return 0.	114	* ob is blocking it, so return 0.
253	*/	115	*/
254	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	116	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
255	{	117	{
256		118	if (OB_MOVE_BLOCK (ob, tmp))
257	/* This must be before the checks below. Code for inventory checkers. */
258	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
259	{	119	{
260	/* If last_sp is set, the player/monster needs an object,	120	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
261	* so we check for it. If they don't have it, they can't	121	if (RESULT_INT (0))
262	* pass through this space.	122	return 1;
263	*/	123	else
264	if (tmp->last_sp)	124	continue;
		125
		126	if (tmp->type == CHECK_INV)
265	{	127	{
266	if (check_inv_recursive (ob, tmp) == NULL)	128	bool have = check_inv_recursive (ob, tmp);
		129
		130	// last_sp set means we block if we don't have.
		131	if (logical_xor (have, tmp->last_sp))
267	return 1;	132	return 1;
268	else	133	}
269	continue;	134	else if (tmp->type == T_MATCH)
		135	{
		136	// T_MATCH allows "entrance" iff the match is true
		137	// == blocks if the match fails
		138
		139	// we could have used an INVOKE_OBJECT, but decided against it, as we
		140	// assume that T_MATCH is relatively common.
		141	if (!match (tmp->slaying, ob, tmp, ob))
		142	return 1;
270	}	143	}
271	else	144	else
272	{	145	return 1; // unconditional block
273	/* In this case, the player must not have the object -	146
274	* if they do, they can't pass through.
275	*/
276	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
277	return 1;
278	else
279	continue;
280	}
281	} /* if check_inv */
282	else	147	} else {
283	{	148	// space does not block the ob, directly, but
284	/* Broke apart a big nasty if into several here to make	149	// anything alive that is not a door still
285	* this more readable. first check - if the space blocks	150	// blocks anything but wizards.
286	* movement, can't move here.	151
287	* second - if a monster, can't move there, unles it is a	152	if (tmp->flag [FLAG_ALIVE]
288	* hidden dm	153	&& tmp->head_ () != ob
289	*/	154	&& tmp != ob
290	if (OB_MOVE_BLOCK (ob, tmp))	155	&& tmp->type != DOOR)
291	return 1;
292	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
293	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))
294	return 1;	156	return 1;
295	}	157	}
296
297	}	158	}
		159
298	return 0;	160	return 0;
299	}	161	}
300		162
301
302	/*	163	/*
303	* Returns true if the given object can't fit in the given spot.	164	* Returns qthe blocking object if the given object can't fit in the given
304	* This is meant for multi space objects - for single space objecs,	165	* spot. This is meant for multi space objects - for single space objecs,
305	* just calling get_map_blocked and checking that against movement type	166	* just calling get_map_blocked and checking that against movement type
306	* of object. This function goes through all the parts of the	167	* of object. This function goes through all the parts of the multipart
307	* multipart object and makes sure they can be inserted.	168	* object and makes sure they can be inserted.
308	*	169	*
309	* While this doesn't call out of map, the get_map_flags does.	170	* While this doesn't call out of map, the get_map_flags does.
310	*	171	*
311	* This function has been used to deprecate arch_out_of_map -	172	* This function has been used to deprecate arch_out_of_map -
312	* this function also does that check, and since in most cases,	173	* this function also does that check, and since in most cases,
…		…
323	*	184	*
324	* Note this used to be arch_blocked, but with new movement	185	* Note this used to be arch_blocked, but with new movement
325	* code, we need to have actual object to check its move_type	186	* code, we need to have actual object to check its move_type
326	* against the move_block values.	187	* against the move_block values.
327	*/	188	*/
328	int	189	bool
329	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	190	object::blocked (maptile *m, int x, int y) const
330	{	191	{
331	archetype *tmp;	192	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
332	int flag;
333	maptile *m1;
334	sint16 sx, sy;
335
336	if (!ob)
337	{
338	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
339	if (flag & P_OUT_OF_MAP)
340	return P_OUT_OF_MAP;
341
342	/* don't have object, so don't know what types would block */
343	return m1->at (sx, sy).move_block;
344	}	193	{
		194	mapxy pos (m, x + tmp->x, y + tmp->y);
345		195
346	for (tmp = ob->arch; tmp; tmp = tmp->more)	196	if (!pos.normalise ())
347	{	197	return 1;
348	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
349		198
350	if (flag & P_OUT_OF_MAP)	199	mapspace &ms = *pos;
351	return P_OUT_OF_MAP;	200
352	if (flag & P_IS_ALIVE)	201	if (ms.flags () & P_IS_ALIVE)
353	return P_IS_ALIVE;	202	return 1;
354		203
355	mapspace &ms = m1->at (sx, sy);	204	/* However, often ob doesn't have any move type
356		205	* (signifying non-moving objects)
357	/* find_first_free_spot() calls this function. However, often
358	* ob doesn't have any move type (when used to place exits)
359	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	206	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
360	*/	207	*/
361
362	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)	208	if (!move_type && ms.move_block != MOVE_ALL)
363	continue;	209	continue;
364		210
365	/* Note it is intentional that we check ob - the movement type of the	211	/* Note it is intentional that we check ob - the movement type of the
366	* head of the object should correspond for the entire object.	212	* head of the object should correspond for the entire object.
367	*/	213	*/
368	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))	214	if (ms.blocks (move_type))
369	return P_NO_PASS;	215	return 1;
370	}	216	}
371		217
372	return 0;	218	return 0;
373	}	219	}
374		220
375	/* When the map is loaded, load_object does not actually insert objects	221	//-GPL
376	* into inventory, but just links them. What this does is go through
377	* and insert them properly.
378	* The object 'container' is the object that contains the inventory.
379	* This is needed so that we can update the containers weight.
380	*/
381	void
382	fix_container (object *container)
383	{
384	object *tmp = container->inv, *next;
385		222
386	container->inv = 0;	223	void
387	while (tmp)	224	maptile::set_object_flag (int flag, int value)
388	{	225	{
389	next = tmp->below;	226	if (!spaces)
390	if (tmp->inv)	227	return;
391	fix_container (tmp);
392		228
393	insert_ob_in_ob (tmp, container);	229	for (mapspace *ms = spaces + size (); ms-- > spaces; )
394	tmp = next;	230	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
395	}	231	tmp->flag [flag] = value;
396
397	/* sum_weight will go through and calculate what all the containers are
398	* carrying.
399	*/
400	sum_weight (container);
401	}	232	}
		233
		234	void
		235	maptile::post_load_original ()
		236	{
		237	if (!spaces)
		238	return;
		239
		240	set_object_flag (FLAG_OBJ_ORIGINAL);
		241
		242	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		243	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		244	INVOKE_OBJECT (RESET, tmp);
		245	}
		246
		247	void
		248	maptile::post_load ()
		249	{
		250	#if 0
		251	if (!spaces)
		252	return;
		253
		254	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		255	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		256	; // nop
		257	#endif
		258	}
		259
		260	//+GPL
402		261
403	/* link_multipart_objects go through all the objects on the map looking	262	/* link_multipart_objects go through all the objects on the map looking
404	* for objects whose arch says they are multipart yet according to the	263	* for objects whose arch says they are multipart yet according to the
405	* info we have, they only have the head (as would be expected when	264	* info we have, they only have the head (as would be expected when
406	* they are saved). We do have to look for the old maps that did save	265	* they are saved).
407	* the more sections and not re-add sections for them.
408	*/	266	*/
409	void	267	void
410	maptile::link_multipart_objects ()	268	maptile::link_multipart_objects ()
411	{	269	{
412	if (!spaces)	270	if (!spaces)
413	return;	271	return;
414		272
415	for (mapspace *ms = spaces + size (); ms-- > spaces; )	273	for (mapspace *ms = spaces + size (); ms-- > spaces; )
416	for (object *tmp = ms->bot; tmp; )	274	{
		275	object *op = ms->bot;
		276	while (op)
417	{	277	{
418	object *above = tmp->above;
419
420	/* already multipart - don't do anything more */	278	/* already multipart - don't do anything more */
421	if (!tmp->head && !tmp->more)	279	if (op->head_ () == op && !op->more && op->arch->more)
422	{
423	/* If there is nothing more to this object, this for loop
424	* won't do anything.
425	*/
426	archetype *at;
427	object *last, *op;
428	for (at = tmp->arch->more, last = tmp;
429	at;
430	at = at->more, last = op)
431	{	280	{
432	op = arch_to_object (at);	281	op->remove ();
		282	op->expand_tail ();
433		283
434	/* update x,y coordinates */	284	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
435	op->x += tmp->x;	285	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
436	op->y += tmp->y;	286	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
437	op->head = tmp;
438	op->map = this;
439	last->more = op;
440	op->name = tmp->name;
441	op->title = tmp->title;
442
443	/* we could link all the parts onto tmp, and then just
444	* call insert_ob_in_map once, but the effect is the same,
445	* as insert_ob_in_map will call itself with each part, and
446	* the coding is simpler to just to it here with each part.
447	*/
448	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	287	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
		288
		289	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
		290	// so we have to reset the iteration through the mapspace
449	}	291	}
		292	else
		293	op = op->above;
450	}	294	}
451
452	tmp = above;
453	}	295	}
454	}	296	}
		297
		298	//-GPL
455		299
456	/*	300	/*
457	* Loads (ands parses) the objects into a given map from the specified	301	* Loads (ands parses) the objects into a given map from the specified
458	* file pointer.	302	* file pointer.
459	* mapflags is the same as we get with load_original_map
460	*/	303	*/
461	bool	304	bool
462	maptile::load_objects (object_thawer &thawer)	305	maptile::_load_objects (object_thawer &f)
463	{	306	{
464	int unique;	307	for (;;)
465	object *op, *prev = NULL, *last_more = NULL, *otmp;
466
467	op = object::create ();
468	op->map = this; /* To handle buttons correctly */
469
470	while (int i = load_object (thawer, op, 0))
471	{	308	{
472	/* if the archetype for the object is null, means that we	309	coroapi::cede_to_tick (); // cede once in a while
473	* got an invalid object. Don't do anything with it - the game	310
474	* or editor will not be able to do anything with it either.	311	switch (f.kw)
475	*/
476	if (op->arch == NULL)
477	{	312	{
478	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	313	case KW_arch:
		314	if (object *op = object::read (f, this))
		315	{
		316	// TODO: why?
		317	if (op->inv)
		318	op->update_weight ();
		319
		320	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		321	{
		322	// we insert manually because
		323	// a) its way faster
		324	// b) we remove manually, too, and there are good reasons for that
		325	// c) it's correct
		326	mapspace &ms = at (op->x, op->y);
		327
		328	op->flag [FLAG_REMOVED] = false;
		329
		330	op->above = 0;
		331	op->below = ms.top;
		332
		333	*(ms.top ? &ms.top->above : &ms.bot) = op;
		334
		335	ms.top = op;
		336	ms.flags_ = 0;
		337	}
		338	else
		339	{
		340	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		341	op->destroy ();
		342	}
		343	}
		344
479	continue;	345	continue;
480	}
481		346
482	switch (i)
483	{
484	case LL_NORMAL:
485	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
486
487	if (op->inv)
488	sum_weight (op);
489
490	prev = op, last_more = op;
491	break;
492
493	case LL_MORE:	347	case KW_EOF:
494	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	348	return true;
495	op->head = prev, last_more->more = op, last_more = op;	349
		350	default:
		351	if (!f.parse_error ("map file"))
		352	return false;
496	break;	353	break;
497	}	354	}
498		355
499	op = object::create ();	356	f.next ();
500	op->map = this;
501	}
502
503	op->destroy ();
504
505	#if 0
506	for (i = 0; i < width; i++)
507	for (j = 0; j < height; j++)
508	{
509	unique = 0;
510	/* check for unique items, or unique squares */
511	for (otmp = GET_MAP_OB (m, i, j); otmp; otmp = otmp->above)
512	{
513	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
514	unique = 1;
515
516	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
517	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
518	}
519	}	357	}
520	#endif
521		358
522	return true;	359	return true;
523	}	360	}
524		361
525	void	362	void
526	maptile::activate ()	363	maptile::activate ()
527	{	364	{
528	if (!spaces)	365	if (spaces)
529	return;
530
531	for (mapspace *ms = spaces + size (); ms-- > spaces; )	366	for (mapspace *ms = spaces + size (); ms-- > spaces; )
532	for (object *op = ms->bot; op; op = op->above)	367	for (object *op = ms->bot; op; op = op->above)
533	op->activate_recursive ();	368	op->activate_recursive ();
534	}	369	}
535		370
536	void	371	void
537	maptile::deactivate ()	372	maptile::deactivate ()
538	{	373	{
539	if (!spaces)	374	if (spaces)
540	return;
541
542	for (mapspace *ms = spaces + size (); ms-- > spaces; )	375	for (mapspace *ms = spaces + size (); ms-- > spaces; )
543	for (object *op = ms->bot; op; op = op->above)	376	for (object *op = ms->bot; op; op = op->above)
544	op->deactivate_recursive ();	377	op->deactivate_recursive ();
545	}	378	}
546		379
547	bool	380	bool
548	maptile::save_objects (object_freezer &freezer, int flags)	381	maptile::_save_objects (object_freezer &f, int flags)
549	{	382	{
		383	coroapi::cede_to_tick ();
		384
550	if (flags & IO_HEADER)	385	if (flags & IO_HEADER)
551	save_header (freezer);	386	_save_header (f);
552		387
553	if (!spaces)	388	if (!spaces)
554	return false;	389	return false;
555		390
556	for (int i = 0; i < size (); ++i)	391	for (int i = 0; i < size (); ++i)
557	{	392	{
558	int unique = 0;	393	bool unique = 0;
		394
559	for (object *op = spaces [i].bot; op; op = op->above)	395	for (object *op = spaces [i].bot; op; op = op->above)
560	{	396	{
561	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])	397	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
562	unique = 1;
563		398
564	if (!op->can_map_save ())	399	if (expect_false (!op->can_map_save ()))
565	continue;	400	continue;
566		401
567	if (unique || op->flag [FLAG_UNIQUE])	402	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
568	{	403	{
569	if (flags & IO_UNIQUES)	404	if (flags & IO_UNIQUES)
570	save_object (freezer, op, 1);	405	op->write (f);
571	}	406	}
572	else if (flags & IO_OBJECTS)	407	else if (expect_true (flags & IO_OBJECTS))
573	save_object (freezer, op, 1);	408	op->write (f);
574	}	409	}
575	}	410	}
576		411
		412	coroapi::cede_to_tick ();
		413
577	return true;	414	return true;
578	}	415	}
579		416
580	bool	417	bool
581	maptile::load_objects (const char *path, bool skip_header)	418	maptile::_save_objects (const char *path, int flags)
582	{	419	{
583	object_thawer thawer (path);	420	object_freezer freezer;
584		421
585	if (!thawer)	422	if (!_save_objects (freezer, flags))
586	return false;	423	return false;
587		424
588	if (skip_header)
589	for (;;)
590	{
591	keyword kw = thawer.get_kv ();
592
593	if (kw == KW_end)
594	break;
595
596	thawer.skip_kv (kw);
597	}
598
599	return load_objects (thawer);
600	}
601
602	bool
603	maptile::save_objects (const char *path, int flags)
604	{
605	object_freezer freezer;
606
607	if (!save_objects (freezer, flags))
608	return false;
609
610	return freezer.save (path);	425	return freezer.save (path);
611	}	426	}
612		427
613	maptile::maptile ()	428	maptile::maptile ()
614	{	429	{
615	in_memory = MAP_SWAPPED;	430	in_memory = MAP_SWAPPED;
616		431
617	/* The maps used to pick up default x and y values from the	432	/* The maps used to pick up default x and y values from the
618	* map archetype. Mimic that behaviour.	433	* map archetype. Mimic that behaviour.
619	*/	434	*/
620	width = 16;	435	width = 16;
621	height = 16;	436	height = 16;
622	reset_timeout = 0;
623	timeout = 300;	437	timeout = 300;
624	enter_x = 0;	438	max_items = MAX_ITEM_PER_ACTION;
625	enter_y = 0;	439	max_volume = 2000000; // 2m³
626	}	440	}
627		441
628	maptile::maptile (int w, int h)	442	maptile::maptile (int w, int h)
629	{	443	{
630	in_memory = MAP_SWAPPED;	444	in_memory = MAP_SWAPPED;
…		…
650	if (spaces)	464	if (spaces)
651	return;	465	return;
652		466
653	spaces = salloc0<mapspace> (size ());	467	spaces = salloc0<mapspace> (size ());
654	}	468	}
		469
		470	//+GPL
655		471
656	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	472	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
657	* corresponding to that string. Memory is allocated for this, it must be freed	473	* corresponding to that string. Memory is allocated for this, it must be freed
658	* at a later date.	474	* at a later date.
659	* Called by parse_map_headers below.	475	* Called by parse_map_headers below.
…		…
736	return items;	552	return items;
737	}	553	}
738		554
739	/* opposite of parse string, this puts the string that was originally fed in to	555	/* opposite of parse string, this puts the string that was originally fed in to
740	* the map (or something equivilent) into output_string. */	556	* the map (or something equivilent) into output_string. */
741	static void	557	static const char *
742	print_shop_string (maptile *m, char *output_string)	558	print_shop_string (maptile *m)
743	{	559	{
744	int i;	560	static dynbuf_text buf; buf.clear ();
745	char tmp[MAX_BUF];
746		561
747	strcpy (output_string, "");
748	for (i = 0; i < m->shopitems[0].index; i++)	562	for (int i = 0; i < m->shopitems[0].index; i++)
749	{	563	{
750	if (m->shopitems[i].typenum)	564	if (m->shopitems[i].typenum)
751	{	565	{
752	if (m->shopitems[i].strength)	566	if (m->shopitems[i].strength)
753	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	567	buf.printf ("%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
754	else	568	else
755	sprintf (tmp, "%s;", m->shopitems[i].name);	569	buf.printf ("%s;", m->shopitems[i].name);
756	}	570	}
757	else	571	else
758	{	572	{
759	if (m->shopitems[i].strength)	573	if (m->shopitems[i].strength)
760	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	574	buf.printf ("*:%d;", m->shopitems[i].strength);
761	else	575	else
762	sprintf (tmp, "*");	576	buf.printf ("*");
763	}	577	}
764
765	strcat (output_string, tmp);
766	}	578	}
		579
		580	return buf;
767	}	581	}
		582
		583	//-GPL
768		584
769	/* This loads the header information of the map. The header	585	/* This loads the header information of the map. The header
770	* contains things like difficulty, size, timeout, etc.	586	* contains things like difficulty, size, timeout, etc.
771	* this used to be stored in the map object, but with the	587	* this used to be stored in the map object, but with the
772	* addition of tiling, fields beyond that easily named in an	588	* addition of tiling, fields beyond that easily named in an
…		…
776	* This could be done in lex (like the object loader), but I think	592	* This could be done in lex (like the object loader), but I think
777	* currently, there are few enough fields this is not a big deal.	593	* currently, there are few enough fields this is not a big deal.
778	* MSW 2001-07-01	594	* MSW 2001-07-01
779	*/	595	*/
780	bool	596	bool
781	maptile::load_header (object_thawer &thawer)	597	maptile::_load_header (object_thawer &thawer)
782	{	598	{
783	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;
784	int msgpos = 0;
785	int maplorepos = 0;
786
787	for (;;)	599	for (;;)
788	{	600	{
789	keyword kw = thawer.get_kv ();
790
791	switch (kw)	601	switch (thawer.kw)
792	{	602	{
793	case KW_EOF:
794	LOG (llevError, "%s: end of file while reading map header, aborting header load.\n", &path);
795	return false;
796
797	case KW_end:
798	return true;
799
800	case KW_msg:	603	case KW_msg:
801	thawer.get_ml (KW_endmsg, msg);	604	thawer.get_ml (KW_endmsg, msg);
802	break;	605	break;
803		606
804	case KW_lore: // CF+ extension	607	case KW_lore: // CF+ extension
…		…
826	case KW_shopgreed: thawer.get (shopgreed); break;	629	case KW_shopgreed: thawer.get (shopgreed); break;
827	case KW_shopmin: thawer.get (shopmin); break;	630	case KW_shopmin: thawer.get (shopmin); break;
828	case KW_shopmax: thawer.get (shopmax); break;	631	case KW_shopmax: thawer.get (shopmax); break;
829	case KW_shoprace: thawer.get (shoprace); break;	632	case KW_shoprace: thawer.get (shoprace); break;
830	case KW_outdoor: thawer.get (outdoor); break;	633	case KW_outdoor: thawer.get (outdoor); break;
831	case KW_temp: thawer.get (temp); break;
832	case KW_pressure: thawer.get (pressure); break;
833	case KW_humid: thawer.get (humid); break;
834	case KW_windspeed: thawer.get (windspeed); break;
835	case KW_winddir: thawer.get (winddir); break;
836	case KW_sky: thawer.get (sky); break;
837		634
838	case KW_per_player: thawer.get (per_player); break;	635	case KW_per_player: thawer.get (per_player); break;
839	case KW_per_party: thawer.get (per_party); break;	636	case KW_per_party: thawer.get (per_party); break;
		637	case KW_no_reset: thawer.get (no_reset); break;
		638	case KW_no_drop: thawer.get (no_drop); break;
840		639
841	case KW_region: get_region_by_name (thawer.get_str ()); break;	640	case KW_region: default_region = region::find (thawer.get_str ()); break;
842	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;	641	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
843		642
844	// old names new names	643	// old names new names
845	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;	644	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
846	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;	645	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
…		…
855	case KW_tile_path_1: thawer.get (tile_path [0]); break;	654	case KW_tile_path_1: thawer.get (tile_path [0]); break;
856	case KW_tile_path_2: thawer.get (tile_path [1]); break;	655	case KW_tile_path_2: thawer.get (tile_path [1]); break;
857	case KW_tile_path_3: thawer.get (tile_path [2]); break;	656	case KW_tile_path_3: thawer.get (tile_path [2]); break;
858	case KW_tile_path_4: thawer.get (tile_path [3]); break;	657	case KW_tile_path_4: thawer.get (tile_path [3]); break;
859		658
		659	case KW_ERROR:
		660	set_key_text (thawer.kw_str, thawer.value);
		661	break;
		662
		663	case KW_end:
		664	thawer.next ();
		665	return true;
		666
860	default:	667	default:
861	LOG (llevError, "%s: skipping unknown key in map header: %s\n", &path, keyword_str [kw]);	668	if (!thawer.parse_error ("map", 0))
		669	return false;
862	break;	670	break;
863	}	671	}
		672
		673	thawer.next ();
864	}	674	}
865		675
866	abort ();	676	abort ();
867	}	677	}
868		678
869	bool	679	//+GPL
870	maptile::load_header (const char *path)
871	{
872	object_thawer thawer (path);
873
874	if (!thawer)
875	return false;
876
877	return load_header (thawer);
878	}
879		680
880	/******************************************************************************	681	/******************************************************************************
881	* This is the start of unique map handling code	682	* This is the start of unique map handling code
882	*****************************************************************************/	683	*****************************************************************************/
883		684
…		…
893	object *above = op->above;	694	object *above = op->above;
894		695
895	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	696	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
896	unique = 1;	697	unique = 1;
897		698
898	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	699	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
899	{
900	op->destroy_inv (false);
901	op->destroy ();	700	op->destroy ();
902	}
903		701
904	op = above;	702	op = above;
905	}	703	}
906	}	704	}
907	}	705	}
908		706
		707	//-GPL
		708
909	bool	709	bool
910	maptile::save_header (object_freezer &freezer)	710	maptile::_save_header (object_freezer &freezer)
911	{	711	{
912	#define MAP_OUT(k) freezer.put (KW_ ## k, k)	712	#define MAP_OUT(k) freezer.put (KW(k), k)
913	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)	713	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
914		714
915	MAP_OUT2 (arch, "map");	715	MAP_OUT2 (arch, CS(map));
916		716
917	if (name) MAP_OUT (name);	717	if (name) MAP_OUT (name);
918	MAP_OUT (swap_time);	718	MAP_OUT (swap_time);
919	MAP_OUT (reset_time);	719	MAP_OUT (reset_time);
920	MAP_OUT (reset_timeout);	720	MAP_OUT (reset_timeout);
921	MAP_OUT (fixed_resettime);	721	MAP_OUT (fixed_resettime);
		722	MAP_OUT (no_reset);
		723	MAP_OUT (no_drop);
922	MAP_OUT (difficulty);	724	MAP_OUT (difficulty);
923
924	if (region) MAP_OUT2 (region, region->name);	725	if (default_region) MAP_OUT2 (region, default_region->name);
925		726
926	if (shopitems)	727	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
927	{
928	char shop[MAX_BUF];
929	print_shop_string (this, shop);
930	MAP_OUT2 (shopitems, shop);
931	}
932
933	MAP_OUT (shopgreed);	728	MAP_OUT (shopgreed);
934	MAP_OUT (shopmin);	729	MAP_OUT (shopmin);
935	MAP_OUT (shopmax);	730	MAP_OUT (shopmax);
936	if (shoprace) MAP_OUT (shoprace);	731	if (shoprace) MAP_OUT (shoprace);
937	MAP_OUT (darkness);	732
938	MAP_OUT (width);	733	MAP_OUT (width);
939	MAP_OUT (height);	734	MAP_OUT (height);
940	MAP_OUT (enter_x);	735	MAP_OUT (enter_x);
941	MAP_OUT (enter_y);	736	MAP_OUT (enter_y);
942		737	MAP_OUT (darkness);
943	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
944	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
945
946	MAP_OUT (outdoor);	738	MAP_OUT (outdoor);
947	MAP_OUT (temp);	739
948	MAP_OUT (pressure);	740	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
949	MAP_OUT (humid);	741	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
950	MAP_OUT (windspeed);
951	MAP_OUT (winddir);
952	MAP_OUT (sky);
953		742
954	MAP_OUT (per_player);	743	MAP_OUT (per_player);
955	MAP_OUT (per_party);	744	MAP_OUT (per_party);
956		745
957	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);	746	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
958	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);	747	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
959	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);	748	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
960	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);	749	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
961		750
		751	freezer.put (this);
962	freezer.put (KW_end);	752	freezer.put (KW(end));
963		753
964	return true;	754	return true;
965	}	755	}
966		756
967	bool	757	bool
968	maptile::save_header (const char *path)	758	maptile::_save_header (const char *path)
969	{	759	{
970	object_freezer freezer;	760	object_freezer freezer;
971		761
972	if (!save_header (freezer))	762	if (!_save_header (freezer))
973	return false;	763	return false;
974		764
975	return freezer.save (path);	765	return freezer.save (path);
976	}	766	}
		767
		768	//+GPL
977		769
978	/*	770	/*
979	* Remove and free all objects in the given map.	771	* Remove and free all objects in the given map.
980	*/	772	*/
981	void	773	void
982	maptile::clear ()	774	maptile::clear ()
983	{	775	{
984	if (!spaces)	776	if (spaces)
985	return;	777	{
986
987	for (mapspace *ms = spaces + size (); ms-- > spaces; )	778	for (mapspace *ms = spaces + size (); ms-- > spaces; )
988	while (object *op = ms->bot)	779	while (object *op = ms->bot)
989	{	780	{
		781	// manually remove, as to not trigger anything
		782	if (ms->bot = op->above)
		783	ms->bot->below = 0;
		784
		785	op->flag [FLAG_REMOVED] = true;
		786
		787	object *head = op->head_ ();
990	if (op->head)	788	if (op == head)
991	op = op->head;
992
993	op->destroy_inv (false);
994	op->destroy ();	789	op->destroy ();
		790	else if (head->map != op->map)
		791	{
		792	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
		793	head->destroy ();
		794	}
		795	}
		796
		797	sfree0 (spaces, size ());
995	}	798	}
996
997	sfree (spaces, size ()), spaces = 0;
998		799
999	if (buttons)	800	if (buttons)
1000	free_objectlinkpt (buttons), buttons = 0;	801	free_objectlinkpt (buttons), buttons = 0;
		802
		803	sfree0 (regions, size ());
		804	delete [] regionmap; regionmap = 0;
1001	}	805	}
1002		806
1003	void	807	void
1004	maptile::clear_header ()	808	maptile::clear_header ()
1005	{	809	{
…		…
1037	attachable::do_destroy ();	841	attachable::do_destroy ();
1038		842
1039	clear ();	843	clear ();
1040	}	844	}
1041		845
1042	/*	846	/* decay and destroy perishable items in a map */
1043	* Updates every button on the map (by calling update_button() for them).	847	// TODO: should be done regularly, not on map load?
1044	*/
1045	void	848	void
1046	maptile::update_buttons ()	849	maptile::do_decay_objects ()
1047	{	850	{
1048	for (oblinkpt *obp = buttons; obp; obp = obp->next)	851	if (!spaces)
1049	for (objectlink *ol = obp->link; ol; ol = ol->next)	852	return;
		853
		854	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		855	for (object *above, *op = ms->bot; op; op = above)
1050	{	856	{
1051	if (!ol->ob)	857	above = op->above;
		858
		859	// do not decay anything above unique floor tiles (yet :)
		860	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		861	break;
		862
		863	bool destroy = 0;
		864
		865	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		866	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		867	|| QUERY_FLAG (op, FLAG_UNIQUE)
		868	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		869	|| QUERY_FLAG (op, FLAG_UNPAID)
		870	|| op->is_alive ())
		871	; // do not decay
		872	else if (op->is_weapon ())
1052	{	873	{
1053	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",	874	op->stats.dam--;
1054	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);	875	if (op->stats.dam < 0)
1055	continue;	876	destroy = 1;
1056	}	877	}
1057		878	else if (op->is_armor ())
1058	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
1059	{	879	{
1060	update_button (ol->ob);	880	op->stats.ac--;
1061	break;	881	if (op->stats.ac < 0)
		882	destroy = 1;
1062	}	883	}
		884	else if (op->type == FOOD)
		885	{
		886	op->stats.food -= rndm (5, 20);
		887	if (op->stats.food < 0)
		888	destroy = 1;
		889	}
		890	else
		891	{
		892	int mat = op->materials;
		893
		894	if (mat & M_PAPER
		895	|| mat & M_LEATHER
		896	|| mat & M_WOOD
		897	|| mat & M_ORGANIC
		898	|| mat & M_CLOTH
		899	|| mat & M_LIQUID
		900	|| (mat & M_IRON && rndm (1, 5) == 1)
		901	|| (mat & M_GLASS && rndm (1, 2) == 1)
		902	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		903	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		904	//|| (mat & M_ICE && temp > 32)
		905	)
		906	destroy = 1;
		907	}
		908
		909	/* adjust overall chance below */
		910	if (destroy && rndm (0, 1))
		911	op->destroy ();
1063	}	912	}
1064	}	913	}
1065		914
1066	/*	915	/*
1067	* This routine is supposed to find out the difficulty of the map.	916	* This routine is supposed to find out the difficulty of the map.
1068	* difficulty does not have a lot to do with character level,	917	* difficulty does not have a lot to do with character level,
1069	* but does have a lot to do with treasure on the map.	918	* but does have a lot to do with treasure on the map.
1070	*	919	*
1071	* Difficulty can now be set by the map creature. If the value stored	920	* Difficulty can now be set by the map creator. If the value stored
1072	* in the map is zero, then use this routine. Maps should really	921	* in the map is zero, then use this routine. Maps should really
1073	* have a difficulty set than using this function - human calculation	922	* have a difficulty set rather than using this function - human calculation
1074	* is much better than this functions guesswork.	923	* is much better than this function's guesswork.
1075	*/	924	*/
1076	int	925	int
1077	maptile::estimate_difficulty () const	926	maptile::estimate_difficulty () const
1078	{	927	{
1079	long monster_cnt = 0;	928	long monster_cnt = 0;
…		…
1091		940
1092	if (QUERY_FLAG (op, FLAG_GENERATOR))	941	if (QUERY_FLAG (op, FLAG_GENERATOR))
1093	{	942	{
1094	total_exp += op->stats.exp;	943	total_exp += op->stats.exp;
1095		944
1096	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))	945	if (archetype *at = op->other_arch)
		946	{
1097	total_exp += at->clone.stats.exp * 8;	947	total_exp += at->stats.exp * 8;
1098
1099	monster_cnt++;	948	monster_cnt++;
		949	}
		950
		951	for (object *inv = op->inv; inv; inv = inv->below)
		952	{
		953	total_exp += op->stats.exp * 8;
		954	monster_cnt++;
		955	}
1100	}	956	}
1101	}	957	}
1102		958
1103	avgexp = (double) total_exp / monster_cnt;	959	avgexp = (double) total_exp / monster_cnt;
1104		960
…		…
1117	* postive values make it darker, negative make it brighter	973	* postive values make it darker, negative make it brighter
1118	*/	974	*/
1119	int	975	int
1120	maptile::change_map_light (int change)	976	maptile::change_map_light (int change)
1121	{	977	{
1122	int new_level = darkness + change;
1123
1124	/* Nothing to do */	978	/* Nothing to do */
1125	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))	979	if (!change)
1126	return 0;	980	return 0;
1127		981
1128	/* inform all players on the map */	982	/* inform all players on the map */
1129	if (change > 0)	983	if (change > 0)
1130	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");	984	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1131	else	985	else
1132	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");	986	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1133		987
1134	/* Do extra checking. since darkness is a unsigned value,	988	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1135	* we need to be extra careful about negative values.
1136	* In general, the checks below are only needed if change
1137	* is not +/-1
1138	*/
1139	if (new_level < 0)
1140	darkness = 0;
1141	else if (new_level >= MAX_DARKNESS)
1142	darkness = MAX_DARKNESS;
1143	else
1144	darkness = new_level;
1145		989
1146	/* All clients need to get re-updated for the change */	990	/* All clients need to get re-updated for the change */
1147	update_all_map_los (this);	991	update_all_map_los (this);
		992
1148	return 1;	993	return 1;
1149	}	994	}
1150		995
1151	/*	996	/*
1152	* This function updates various attributes about a specific space	997	* This function updates various attributes about a specific space
…		…
1155	* through, etc)	1000	* through, etc)
1156	*/	1001	*/
1157	void	1002	void
1158	mapspace::update_ ()	1003	mapspace::update_ ()
1159	{	1004	{
1160	object *tmp, *last = 0;	1005	object *last = 0;
1161	uint8 flags = 0, light = 0, anywhere = 0;	1006	uint8 flags = P_UPTODATE;
1162	New_Face *top, *floor, *middle;	1007	sint8 light = 0;
1163	object *top_obj, *floor_obj, *middle_obj;
1164	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1008	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1009	uint64_t volume = 0;
		1010	uint32_t items = 0;
		1011	object *anywhere = 0;
		1012	uint8_t middle_visibility = 0;
1165		1013
1166	middle = blank_face;	1014	//object *middle = 0;
1167	top = blank_face;	1015	//object *top = 0;
1168	floor = blank_face;	1016	//object *floor = 0;
		1017	// this seems to generate better code than using locals, above
		1018	object *&top = faces_obj[0] = 0;
		1019	object *&middle = faces_obj[1] = 0;
		1020	object *&floor = faces_obj[2] = 0;
1169		1021
1170	middle_obj = 0;	1022	object::flags_t allflags; // all flags of all objects or'ed together
1171	top_obj = 0;
1172	floor_obj = 0;
1173		1023
1174	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1024	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1175	{	1025	{
1176	/* This could be made additive I guess (two lights better than	1026	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1177	* one). But if so, it shouldn't be a simple additive - 2
1178	* light bulbs do not illuminate twice as far as once since
1179	* it is a dissapation factor that is cubed.
1180	*/
1181	if (tmp->glow_radius > light)
1182	light = tmp->glow_radius;	1027	light += tmp->glow_radius;
1183		1028
1184	/* This call is needed in order to update objects the player	1029	/* This call is needed in order to update objects the player
1185	* is standing in that have animations (ie, grass, fire, etc).	1030	* is standing in that have animations (ie, grass, fire, etc).
1186	* However, it also causes the look window to be re-drawn	1031	* However, it also causes the look window to be re-drawn
1187	* 3 times each time the player moves, because many of the	1032	* 3 times each time the player moves, because many of the
1188	* functions the move_player calls eventualy call this.	1033	* functions the move_player calls eventualy call this.
1189	*	1034	*
1190	* Always put the player down for drawing.	1035	* Always put the player down for drawing.
1191	*/	1036	*/
1192	if (!tmp->invisible)	1037	if (expect_true (!tmp->invisible))
1193	{	1038	{
1194	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1039	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1195	{
1196	top = tmp->face;
1197	top_obj = tmp;	1040	top = tmp;
1198	}	1041	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1199	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1200	{	1042	{
1201	/* If we got a floor, that means middle and top were below it,	1043	/* If we got a floor, that means middle and top were below it,
1202	* so should not be visible, so we clear them.	1044	* so should not be visible, so we clear them.
1203	*/	1045	*/
1204	middle = blank_face;	1046	middle = 0;
1205	top = blank_face;	1047	top = 0;
1206	floor = tmp->face;
1207	floor_obj = tmp;	1048	floor = tmp;
		1049	volume = 0;
		1050	items = 0;
1208	}	1051	}
1209	/* Flag anywhere have high priority */	1052	else
1210	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1211	{	1053	{
1212	middle = tmp->face;	1054	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1055	{
		1056	++items;
		1057	volume += tmp->volume ();
		1058	}
1213		1059
1214	middle_obj = tmp;	1060	/* Flag anywhere have high priority */
		1061	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
1215	anywhere = 1;	1062	anywhere = tmp;
		1063
		1064	/* Find the highest visible face around. If equal
		1065	* visibilities, we still want the one nearer to the
		1066	* top
		1067	*/
		1068	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
		1069	{
		1070	middle_visibility = ::faces [tmp->face].visibility;
		1071	middle = tmp;
		1072	}
1216	}	1073	}
1217	/* Find the highest visible face around. If equal
1218	* visibilities, we still want the one nearer to the
1219	* top
1220	*/
1221	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))
1222	{
1223	middle = tmp->face;
1224	middle_obj = tmp;
1225	}
1226	}
1227
1228	if (tmp == tmp->above)
1229	{
1230	LOG (llevError, "Error in structure of map\n");
1231	exit (-1);
1232	}	1074	}
1233		1075
1234	move_slow |= tmp->move_slow;	1076	move_slow |= tmp->move_slow;
1235	move_block |= tmp->move_block;	1077	move_block |= tmp->move_block;
1236	move_on |= tmp->move_on;	1078	move_on |= tmp->move_on;
1237	move_off |= tmp->move_off;	1079	move_off |= tmp->move_off;
1238	move_allow |= tmp->move_allow;	1080	move_allow |= tmp->move_allow;
1239		1081
1240	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;	1082	allflags |= tmp->flag;
1241	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;	1083
1242	if (tmp->type == PLAYER) flags |= P_PLAYER;	1084	if (tmp->type == PLAYER) flags |= P_PLAYER;
1243	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1085	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1244	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1245	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1246	}	1086	}
1247		1087
1248	this->light = light;	1088	// FLAG_SEE_ANYWHERE takes precedence
		1089	if (anywhere)
		1090	middle = anywhere;
		1091
		1092	// ORing all flags together and checking them here is much faster
		1093	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
		1094	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1095	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1096	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1097
		1098	this->light = min (light, MAX_LIGHT_RADIUS);
1249	this->flags_ = flags;	1099	this->flags_ = flags;
1250	this->move_block = move_block & ~move_allow;	1100	this->move_block = move_block & ~move_allow;
1251	this->move_on = move_on;	1101	this->move_on = move_on;
1252	this->move_off = move_off;	1102	this->move_off = move_off;
1253	this->move_slow = move_slow;	1103	this->move_slow = move_slow;
		1104	this->volume_ = (volume + 1023) / 1024;
		1105	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
1254		1106
1255	/* At this point, we have a floor face (if there is a floor),	1107	/* At this point, we have a floor face (if there is a floor),
1256	* and the floor is set - we are not going to touch it at	1108	* and the floor is set - we are not going to touch it at
1257	* this point.	1109	* this point.
1258	* middle contains the highest visibility face.	1110	* middle contains the highest visibility face.
…		…
1265	* middle face. This should not happen, as we already have the	1117	* middle face. This should not happen, as we already have the
1266	* else statement above so middle should not get set. OTOH, it	1118	* else statement above so middle should not get set. OTOH, it
1267	* may be possible for the faces to match but be different objects.	1119	* may be possible for the faces to match but be different objects.
1268	*/	1120	*/
1269	if (top == middle)	1121	if (top == middle)
1270	middle = blank_face;	1122	middle = 0;
1271		1123
1272	/* There are three posibilities at this point:	1124	/* There are three posibilities at this point:
1273	* 1) top face is set, need middle to be set.	1125	* 1) top face is set, need middle to be set.
1274	* 2) middle is set, need to set top.	1126	* 2) middle is set, need to set top.
1275	* 3) neither middle or top is set - need to set both.	1127	* 3) neither middle or top is set - need to set both.
1276	*/	1128	*/
1277		1129
1278	for (tmp = last; tmp; tmp = tmp->below)	1130	for (object *tmp = last; tmp; tmp = tmp->below)
1279	{	1131	{
1280	/* Once we get to a floor, stop, since we already have a floor object */	1132	/* Once we get to a floor, stop, since we already have a floor object */
1281	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1133	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1282	break;	1134	break;
1283		1135
1284	/* If two top faces are already set, quit processing */	1136	/* If two top faces are already set, quit processing */
1285	if ((top != blank_face) && (middle != blank_face))	1137	if (top && middle)
1286	break;	1138	break;
1287		1139
1288	/* Only show visible faces, unless its the editor - show all */	1140	/* Only show visible faces */
1289	if (!tmp->invisible || editor)	1141	if (!tmp->invisible)
1290	{	1142	{
1291	/* Fill in top if needed */	1143	/* Fill in top if needed */
1292	if (top == blank_face)	1144	if (!top)
1293	{	1145	{
1294	top = tmp->face;
1295	top_obj = tmp;	1146	top = tmp;
1296	if (top == middle)	1147	if (top == middle)
1297	middle = blank_face;	1148	middle = 0;
1298	}	1149	}
1299	else	1150	else
1300	{	1151	{
1301	/* top is already set - we should only get here if	1152	/* top is already set - we should only get here if
1302	* middle is not set	1153	* middle is not set
1303	*	1154	*
1304	* Set the middle face and break out, since there is nothing	1155	* Set the middle face and break out, since there is nothing
1305	* more to fill in. We don't check visiblity here, since	1156	* more to fill in. We don't check visiblity here, since
1306	*	1157	*
1307	*/	1158	*/
1308	if (tmp->face != top)	1159	if (tmp != top)
1309	{	1160	{
1310	middle = tmp->face;
1311	middle_obj = tmp;	1161	middle = tmp;
1312	break;	1162	break;
1313	}	1163	}
1314	}	1164	}
1315	}	1165	}
1316	}	1166	}
1317		1167
1318	if (middle == floor)	1168	if (middle == floor)
1319	middle = blank_face;	1169	middle = 0;
1320		1170
1321	if (top == middle)	1171	if (top == middle)
1322	middle = blank_face;	1172	middle = 0;
1323		1173
1324	faces [0] = top; faces_obj [0] = top != blank_face ? top_obj : 0;	1174	#if 0
1325	faces [1] = middle; faces_obj [1] = middle != blank_face ? middle_obj : 0;	1175	faces_obj [0] = top;
1326	faces [2] = floor; faces_obj [2] = floor != blank_face ? floor_obj : 0;	1176	faces_obj [1] = middle;
		1177	faces_obj [2] = floor;
		1178	#endif
1327	}	1179	}
1328		1180
1329	/* this updates the orig_map->tile_map[tile_num] value after loading	1181	maptile *
1330	* the map. It also takes care of linking back the freshly loaded	1182	maptile::tile_available (int dir, bool load)
1331	* maps tile_map values if it tiles back to this one. It returns
1332	* the value of orig_map->tile_map[tile_num]. It really only does this
1333	* so that it is easier for calling functions to verify success.
1334	*/
1335	static maptile *
1336	load_and_link_tiled_map (maptile *orig_map, int tile_num)
1337	{	1183	{
1338	maptile *mp = orig_map->load_map_sync (orig_map->tile_path [tile_num], orig_map);	1184	if (tile_path[dir])
1339
1340	if (!mp || mp->in_memory != MAP_IN_MEMORY)
1341	{
1342	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
1343	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
1344	&orig_map->tile_path[tile_num], &orig_map->path);
1345	mp = new maptile (1, 1);
1346	mp->alloc ();
1347	mp->in_memory = MAP_IN_MEMORY;
1348	}	1185	{
		1186	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1187	return tile_map[dir];
1349		1188
1350	int dest_tile = (tile_num + 2) % 4;	1189	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1190	return tile_map[dir];
		1191	}
1351		1192
1352	orig_map->tile_map[tile_num] = mp;
1353
1354	// optimisation: back-link map to origin map if euclidean
1355	//TODO: non-euclidean maps MUST GO
1356	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1357	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1358
1359	return mp;	1193	return 0;
1360	}	1194	}
1361		1195
1362	/* this returns TRUE if the coordinates (x,y) are out of	1196	/* this returns TRUE if the coordinates (x,y) are out of
1363	* map m. This function also takes into account any	1197	* map m. This function also takes into account any
1364	* tiling considerations, loading adjacant maps as needed.	1198	* tiling considerations, loading adjacant maps as needed.
…		…
1377	if (!m)	1211	if (!m)
1378	return 0;	1212	return 0;
1379		1213
1380	if (x < 0)	1214	if (x < 0)
1381	{	1215	{
1382	if (!m->tile_path[3])	1216	if (!m->tile_available (3))
1383	return 1;	1217	return 1;
1384		1218
1385	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1386	load_and_link_tiled_map (m, 3);
1387
1388	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);	1219	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
1389	}	1220	}
1390		1221
1391	if (x >= m->width)	1222	if (x >= m->width)
1392	{	1223	{
1393	if (!m->tile_path[1])	1224	if (!m->tile_available (1))
1394	return 1;	1225	return 1;
1395		1226
1396	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1397	load_and_link_tiled_map (m, 1);
1398
1399	return out_of_map (m->tile_map[1], x - m->width, y);	1227	return out_of_map (m->tile_map[1], x - m->width, y);
1400	}	1228	}
1401		1229
1402	if (y < 0)	1230	if (y < 0)
1403	{	1231	{
1404	if (!m->tile_path[0])	1232	if (!m->tile_available (0))
1405	return 1;	1233	return 1;
1406		1234
1407	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1408	load_and_link_tiled_map (m, 0);
1409
1410	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);	1235	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
1411	}	1236	}
1412		1237
1413	if (y >= m->height)	1238	if (y >= m->height)
1414	{	1239	{
1415	if (!m->tile_path[2])	1240	if (!m->tile_available (2))
1416	return 1;	1241	return 1;
1417
1418	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1419	load_and_link_tiled_map (m, 2);
1420		1242
1421	return out_of_map (m->tile_map[2], x, y - m->height);	1243	return out_of_map (m->tile_map[2], x, y - m->height);
1422	}	1244	}
1423		1245
1424	/* Simple case - coordinates are within this local	1246	/* Simple case - coordinates are within this local
…		…
1429		1251
1430	/* This is basically the same as out_of_map above, but	1252	/* This is basically the same as out_of_map above, but
1431	* instead we return NULL if no map is valid (coordinates	1253	* instead we return NULL if no map is valid (coordinates
1432	* out of bounds and no tiled map), otherwise it returns	1254	* out of bounds and no tiled map), otherwise it returns
1433	* the map as that the coordinates are really on, and	1255	* the map as that the coordinates are really on, and
1434	* updates x and y to be the localized coordinates.	1256	* updates x and y to be the localised coordinates.
1435	* Using this is more efficient of calling out_of_map	1257	* Using this is more efficient of calling out_of_map
1436	* and then figuring out what the real map is	1258	* and then figuring out what the real map is
1437	*/	1259	*/
1438	maptile *	1260	maptile *
1439	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)	1261	maptile::xy_find (sint16 &x, sint16 &y)
1440	{	1262	{
1441	if (*x < 0)	1263	if (x < 0)
1442	{	1264	{
1443	if (!m->tile_path[3])	1265	if (!tile_available (3))
1444	return 0;	1266	return 0;
1445		1267
1446	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1447	load_and_link_tiled_map (m, 3);
1448
1449	*x += m->tile_map[3]->width;	1268	x += tile_map[3]->width;
1450	return (get_map_from_coord (m->tile_map[3], x, y));	1269	return tile_map[3]->xy_find (x, y);
1451	}	1270	}
1452		1271
1453	if (*x >= m->width)	1272	if (x >= width)
1454	{	1273	{
1455	if (!m->tile_path[1])	1274	if (!tile_available (1))
1456	return 0;	1275	return 0;
1457		1276
1458	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1459	load_and_link_tiled_map (m, 1);
1460
1461	*x -= m->width;	1277	x -= width;
1462	return (get_map_from_coord (m->tile_map[1], x, y));	1278	return tile_map[1]->xy_find (x, y);
1463	}	1279	}
1464		1280
1465	if (*y < 0)	1281	if (y < 0)
1466	{	1282	{
1467	if (!m->tile_path[0])	1283	if (!tile_available (0))
1468	return 0;	1284	return 0;
1469		1285
1470	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1471	load_and_link_tiled_map (m, 0);
1472
1473	*y += m->tile_map[0]->height;	1286	y += tile_map[0]->height;
1474	return (get_map_from_coord (m->tile_map[0], x, y));	1287	return tile_map[0]->xy_find (x, y);
1475	}	1288	}
1476		1289
1477	if (*y >= m->height)	1290	if (y >= height)
1478	{	1291	{
1479	if (!m->tile_path[2])	1292	if (!tile_available (2))
1480	return 0;	1293	return 0;
1481		1294
1482	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1483	load_and_link_tiled_map (m, 2);
1484
1485	*y -= m->height;	1295	y -= height;
1486	return (get_map_from_coord (m->tile_map[2], x, y));	1296	return tile_map[2]->xy_find (x, y);
1487	}	1297	}
1488		1298
1489	/* Simple case - coordinates are within this local	1299	/* Simple case - coordinates are within this local
1490	* map.	1300	* map.
1491	*/	1301	*/
1492	return m;	1302	return this;
1493	}	1303	}
1494		1304
1495	/**	1305	/**
1496	* Return whether map2 is adjacent to map1. If so, store the distance from	1306	* Return whether map2 is adjacent to map1. If so, store the distance from
1497	* map1 to map2 in dx/dy.	1307	* map1 to map2 in dx/dy.
1498	*/	1308	*/
1499	static int	1309	int
1500	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1310	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
1501	{	1311	{
1502	if (!map1 || !map2)	1312	if (!map1 || !map2)
1503	return 0;	1313	return 0;
1504		1314
		1315	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1316	//fix: compare paths instead (this is likely faster, too!)
1505	if (map1 == map2)	1317	if (map1 == map2)
1506	{	1318	{
1507	*dx = 0;	1319	*dx = 0;
1508	*dy = 0;	1320	*dy = 0;
1509	}	1321	}
…		…
1569	}	1381	}
1570	else	1382	else
1571	return 0;	1383	return 0;
1572		1384
1573	return 1;	1385	return 1;
		1386	}
		1387
		1388	maptile *
		1389	maptile::xy_load (sint16 &x, sint16 &y)
		1390	{
		1391	maptile *map = xy_find (x, y);
		1392
		1393	if (map)
		1394	map->load_sync ();
		1395
		1396	return map;
		1397	}
		1398
		1399	maptile *
		1400	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1401	{
		1402	return m->xy_load (*x, *y);
1574	}	1403	}
1575		1404
1576	/* From map.c	1405	/* From map.c
1577	* This is used by get_player to determine where the other	1406	* This is used by get_player to determine where the other
1578	* creature is. get_rangevector takes into account map tiling,	1407	* creature is. get_rangevector takes into account map tiling,
1579	* so you just can not look the the map coordinates and get the	1408	* so you just can not look the the map coordinates and get the
1580	* righte value. distance_x/y are distance away, which	1409	* righte value. distance_x/y are distance away, which
1581	* can be negativbe. direction is the crossfire direction scheme	1410	* can be negative. direction is the crossfire direction scheme
1582	* that the creature should head. part is the part of the	1411	* that the creature should head. part is the part of the
1583	* monster that is closest.	1412	* monster that is closest.
1584	*	1413	*
1585	* get_rangevector looks at op1 and op2, and fills in the	1414	* get_rangevector looks at op1 and op2, and fills in the
1586	* structure for op1 to get to op2.	1415	* structure for op1 to get to op2.
…		…
1597	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1426	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
1598	{	1427	{
1599	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1428	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
1600	{	1429	{
1601	/* be conservative and fill in _some_ data */	1430	/* be conservative and fill in _some_ data */
1602	retval->distance = 100000;	1431	retval->distance = 10000;
1603	retval->distance_x = 32767;	1432	retval->distance_x = 10000;
1604	retval->distance_y = 32767;	1433	retval->distance_y = 10000;
1605	retval->direction = 0;	1434	retval->direction = 0;
1606	retval->part = 0;	1435	retval->part = 0;
1607	}	1436	}
1608	else	1437	else
1609	{	1438	{
…		…
1614		1443
1615	best = op1;	1444	best = op1;
1616	/* If this is multipart, find the closest part now */	1445	/* If this is multipart, find the closest part now */
1617	if (!(flags & 0x1) && op1->more)	1446	if (!(flags & 0x1) && op1->more)
1618	{	1447	{
1619	object *tmp;
1620	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1448	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
1621		1449
1622	/* we just take the offset of the piece to head to figure	1450	/* we just take the offset of the piece to head to figure
1623	* distance instead of doing all that work above again	1451	* distance instead of doing all that work above again
1624	* since the distance fields we set above are positive in the	1452	* since the distance fields we set above are positive in the
1625	* same axis as is used for multipart objects, the simply arithmetic	1453	* same axis as is used for multipart objects, the simply arithmetic
1626	* below works.	1454	* below works.
1627	*/	1455	*/
1628	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1456	for (object *tmp = op1->more; tmp; tmp = tmp->more)
1629	{	1457	{
1630	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1458	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
1631	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1459	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
1632	if (tmpi < best_distance)	1460	if (tmpi < best_distance)
1633	{	1461	{
1634	best_distance = tmpi;	1462	best_distance = tmpi;
1635	best = tmp;	1463	best = tmp;
1636	}	1464	}
1637	}	1465	}
		1466
1638	if (best != op1)	1467	if (best != op1)
1639	{	1468	{
1640	retval->distance_x += op1->x - best->x;	1469	retval->distance_x += op1->x - best->x;
1641	retval->distance_y += op1->y - best->y;	1470	retval->distance_y += op1->y - best->y;
1642	}	1471	}
1643	}	1472	}
		1473
1644	retval->part = best;	1474	retval->part = best;
1645	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1475	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1646	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1476	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
1647	}	1477	}
1648	}	1478	}
1649		1479
1650	/* this is basically the same as get_rangevector above, but instead of	1480	/* this is basically the same as get_rangevector above, but instead of
…		…
1655	* flags has no meaning for this function at this time - I kept it in to	1485	* flags has no meaning for this function at this time - I kept it in to
1656	* be more consistant with the above function and also in case they are needed	1486	* be more consistant with the above function and also in case they are needed
1657	* for something in the future. Also, since no object is pasted, the best	1487	* for something in the future. Also, since no object is pasted, the best
1658	* field of the rv_vector is set to NULL.	1488	* field of the rv_vector is set to NULL.
1659	*/	1489	*/
1660
1661	void	1490	void
1662	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1491	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
1663	{	1492	{
1664	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1493	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
1665	{	1494	{
1666	/* be conservative and fill in _some_ data */	1495	/* be conservative and fill in _some_ data */
1667	retval->distance = 100000;	1496	retval->distance = 100000;
…		…
1673	else	1502	else
1674	{	1503	{
1675	retval->distance_x += op2->x - x;	1504	retval->distance_x += op2->x - x;
1676	retval->distance_y += op2->y - y;	1505	retval->distance_y += op2->y - y;
1677		1506
1678	retval->part = NULL;	1507	retval->part = 0;
1679	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1508	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1680	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1509	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
1681	}	1510	}
1682	}	1511	}
1683		1512
1684	/* Returns true of op1 and op2 are effectively on the same map	1513	/* Returns true of op1 and op2 are effectively on the same map
…		…
1695	int dx, dy;	1524	int dx, dy;
1696		1525
1697	return adjacent_map (op1->map, op2->map, &dx, &dy);	1526	return adjacent_map (op1->map, op2->map, &dx, &dy);
1698	}	1527	}
1699		1528
		1529	//-GPL
		1530
1700	object *	1531	object *
1701	maptile::insert (object *op, int x, int y, object *originator, int flags)	1532	maptile::insert (object *op, int x, int y, object *originator, int flags)
1702	{	1533	{
1703	if (!op->flag [FLAG_REMOVED])
1704	op->remove ();
1705
1706	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1534	return insert_ob_in_map_at (op, this, originator, flags, x, y);
1707	}	1535	}
1708		1536
		1537	region *
		1538	maptile::region (int x, int y) const
		1539	{
		1540	if (regions
		1541	&& regionmap
		1542	&& !OUT_OF_REAL_MAP (this, x, y))
		1543	if (struct region *reg = regionmap [regions [y * width + x]])
		1544	return reg;
		1545
		1546	if (default_region)
		1547	return default_region;
		1548
		1549	return ::region::default_region ();
		1550	}
		1551
		1552	//+GPL
		1553
		1554	/* picks a random object from a style map.
		1555	*/
		1556	object *
		1557	maptile::pick_random_object (rand_gen &gen) const
		1558	{
		1559	/* while returning a null object will result in a crash, that
		1560	* is actually preferable to an infinite loop. That is because
		1561	* most servers will automatically restart in case of crash.
		1562	* Change the logic on getting the random space - shouldn't make
		1563	* any difference, but this seems clearer to me.
		1564	*/
		1565	for (int i = 1000; --i;)
		1566	{
		1567	object *pick = at (gen (width), gen (height)).bot;
		1568
		1569	// do not prefer big monsters just because they are big.
		1570	if (pick && pick->is_head ())
		1571	return pick->head_ ();
		1572	}
		1573
		1574	// instead of crashing in the unlikely(?) case, try to return *something*
		1575	return archetype::find (shstr_bug);
		1576	}
		1577
		1578	//-GPL
		1579
		1580	void
		1581	maptile::play_sound (faceidx sound, int x, int y) const
		1582	{
		1583	if (!sound)
		1584	return;
		1585
		1586	for_all_players_on_map (pl, this)
		1587	if (client *ns = pl->ns)
		1588	{
		1589	int dx = x - pl->ob->x;
		1590	int dy = y - pl->ob->y;
		1591
		1592	int distance = idistance (dx, dy);
		1593
		1594	if (distance <= MAX_SOUND_DISTANCE)
		1595	ns->play_sound (sound, dx, dy);
		1596	}
		1597	}
		1598
		1599	void
		1600	maptile::say_msg (const char *msg, int x, int y) const
		1601	{
		1602	for_all_players (pl)
		1603	if (client *ns = pl->ns)
		1604	{
		1605	int dx = x - pl->ob->x;
		1606	int dy = y - pl->ob->y;
		1607
		1608	int distance = idistance (dx, dy);
		1609
		1610	if (distance <= MAX_SOUND_DISTANCE)
		1611	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1612	}
		1613	}
		1614
		1615	static void
		1616	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1617	{
		1618	// clip to map to the left
		1619	if (x0 < 0)
		1620	{
		1621	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1622	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1623
		1624	if (x1 < 0) // entirely to the left
		1625	return;
		1626
		1627	x0 = 0;
		1628	}
		1629
		1630	// clip to map to the right
		1631	if (x1 > m->width)
		1632	{
		1633	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1634	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1635
		1636	if (x0 > m->width) // entirely to the right
		1637	return;
		1638
		1639	x1 = m->width;
		1640	}
		1641
		1642	// clip to map above
		1643	if (y0 < 0)
		1644	{
		1645	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1646	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1647
		1648	if (y1 < 0) // entirely above
		1649	return;
		1650
		1651	y0 = 0;
		1652	}
		1653
		1654	// clip to map below
		1655	if (y1 > m->height)
		1656	{
		1657	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1658	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1659
		1660	if (y0 > m->height) // entirely below
		1661	return;
		1662
		1663	y1 = m->height;
		1664	}
		1665
		1666	// if we get here, the rect is within the current map
		1667	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1668
		1669	r->m = m;
		1670	r->x0 = x0;
		1671	r->y0 = y0;
		1672	r->x1 = x1;
		1673	r->y1 = y1;
		1674	r->dx = dx;
		1675	r->dy = dy;
		1676	}
		1677
		1678	maprect *
		1679	maptile::split_to_tiles (int x0, int y0, int x1, int y1)
		1680	{
		1681	static dynbuf buf (sizeof (maprect) * 8, sizeof (maprect) * 8);
		1682	buf.clear ();
		1683
		1684	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1685
		1686	// add end marker
		1687	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1688	r->m = 0;
		1689
		1690	return (maprect *)buf.linearise ();
		1691	}
		1692

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