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Comparing deliantra/server/common/map.C (file contents):
Revision 1.43 by root, Thu Dec 14 22:45:40 2006 UTC vs.
Revision 1.203 by root, Sat Apr 23 04:56:46 2011 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 (©) 2005,2006,2007,2008,2009,2010,2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992 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
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#include <unistd.h>	25	#include <unistd.h>
30		26
		27	#include "global.h"
31	#include "path.h"	28	#include "path.h"
32		29
		30	//+GPL
33		31
34	/*	32	sint8 maptile::outdoor_darkness;
35	* Returns the maptile which has a name matching the given argument.
36	* return NULL if no match is found.
37	*/
38
39	maptile *
40	has_been_loaded (const char *name)
41	{
42	maptile *map;
43
44	if (!name || !*name)
45	return 0;
46	for (map = first_map; map; map = map->next)
47	if (!strcmp (name, map->path))
48	break;
49	return (map);
50	}
51
52	/*
53	* This makes a path absolute outside the world of Crossfire.
54	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
55	* and returns the pointer to a static array containing the result.
56	* it really should be called create_mapname
57	*/
58
59	const char *
60	create_pathname (const char *name)
61	{
62	static char buf[MAX_BUF];
63
64	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
65	* someplace else in the code? msw 2-17-97
66	*/
67	if (*name == '/')
68	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
69	else
70	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
71	return (buf);
72	}
73
74	/*
75	* same as create_pathname, but for the overlay maps.
76	*/
77
78	const char *
79	create_overlay_pathname (const char *name)
80	{
81	static char buf[MAX_BUF];
82
83	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
84	* someplace else in the code? msw 2-17-97
85	*/
86	if (*name == '/')
87	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
88	else
89	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
90	return (buf);
91	}
92
93	/*
94	* same as create_pathname, but for the template maps.
95	*/
96
97	const char *
98	create_template_pathname (const char *name)
99	{
100	static char buf[MAX_BUF];
101
102	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
103	* someplace else in the code? msw 2-17-97
104	*/
105	if (*name == '/')
106	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
107	else
108	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
109	return (buf);
110	}
111
112	/*
113	* This makes absolute path to the itemfile where unique objects
114	* will be saved. Converts '/' to '@'. I think it's essier maintain
115	* files than full directory structure, but if this is problem it can
116	* be changed.
117	*/
118	static const char *
119	create_items_path (const char *s)
120	{
121	static char buf[MAX_BUF];
122	char *t;
123
124	if (*s == '/')
125	s++;
126
127	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
128
129	for (t = buf + strlen (buf); *s; s++, t++)
130	if (*s == '/')
131	*t = '@';
132	else
133	*t = *s;
134	*t = 0;
135	return (buf);
136	}
137
138
139	/*
140	* This function checks if a file with the given path exists.
141	* -1 is returned if it fails, otherwise the mode of the file
142	* is returned.
143	* It tries out all the compression suffixes listed in the uncomp[] array.
144	*
145	* If prepend_dir is set, then we call create_pathname (which prepends
146	* libdir & mapdir). Otherwise, we assume the name given is fully
147	* complete.
148	* Only the editor actually cares about the writablity of this -
149	* the rest of the code only cares that the file is readable.
150	* when the editor goes away, the call to stat should probably be
151	* replaced by an access instead (similar to the windows one, but
152	* that seems to be missing the prepend_dir processing
153	*/
154
155	int
156	check_path (const char *name, int prepend_dir)
157	{
158	char buf[MAX_BUF];
159
160	char *endbuf;
161	struct stat statbuf;
162	int mode = 0;
163
164	if (prepend_dir)
165	strcpy (buf, create_pathname (name));
166	else
167	strcpy (buf, name);
168
169	/* old method (strchr(buf, '\0')) seemd very odd to me -
170	* this method should be equivalant and is clearer.
171	* Can not use strcat because we need to cycle through
172	* all the names.
173	*/
174	endbuf = buf + strlen (buf);
175
176	if (stat (buf, &statbuf))
177	return -1;
178	if (!S_ISREG (statbuf.st_mode))
179	return (-1);
180
181	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
182	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
183	mode |= 4;
184
185	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
186	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
187	mode |= 2;
188
189	return (mode);
190	}
191
192	/*
193	* Prints out debug-information about a map.
194	* Dumping these at llevError doesn't seem right, but is
195	* necessary to make sure the information is in fact logged.
196	*/
197
198	void
199	dump_map (const maptile *m)
200	{
201	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
202	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
203
204	if (m->msg != NULL)
205	LOG (llevError, "Message:\n%s", m->msg);
206
207	if (m->maplore != NULL)
208	LOG (llevError, "Lore:\n%s", m->maplore);
209
210	if (m->tmpname != NULL)
211	LOG (llevError, "Tmpname: %s\n", m->tmpname);
212
213	LOG (llevError, "Difficulty: %d\n", m->difficulty);
214	LOG (llevError, "Darkness: %d\n", m->darkness);
215	}
216
217	/*
218	* Prints out debug-information about all maps.
219	* This basically just goes through all the maps and calls
220	* dump_map on each one.
221	*/
222
223	void
224	dump_all_maps (void)
225	{
226	maptile *m;
227
228	for (m = first_map; m != NULL; m = m->next)
229	{
230	dump_map (m);
231	}
232	}
233		33
234	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	34	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
235	* one function that just returns a P_.. value (see map.h)	35	* one function that just returns a P_.. value (see map.h)
236	* it will also do map translation for tiled maps, returning	36	* it will also do map translation for tiled maps, returning
237	* 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
…		…
240	* is needed. The case of not passing values is if we're just	40	* is needed. The case of not passing values is if we're just
241	* checking for the existence of something on those spaces, but	41	* checking for the existence of something on those spaces, but
242	* don't expect to insert/remove anything from those spaces.	42	* don't expect to insert/remove anything from those spaces.
243	*/	43	*/
244	int	44	int
245	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 * nx, sint16 * ny)	45	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
246	{	46	{
247	sint16 newx, newy;	47	sint16 newx = x;
248	int retval = 0;	48	sint16 newy = y;
249	maptile *mp;
250		49
251	if (out_of_map (oldmap, x, y))	50	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		51
		52	if (!mp)
252	return P_OUT_OF_MAP;	53	return P_OUT_OF_MAP;
253	newx = x;
254	newy = y;
255	mp = get_map_from_coord (oldmap, &newx, &newy);
256	if (mp != oldmap)
257	retval |= P_NEW_MAP;
258	if (newmap)
259	*newmap = mp;
260	if (nx)
261	*nx = newx;
262	if (ny)
263	*ny = newy;
264		54
265	retval |= mp->spaces[newx + mp->width * newy].flags;	55	if (newmap) *newmap = mp;
		56	if (nx) *nx = newx;
		57	if (ny) *ny = newy;
266		58
267	return retval;	59	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
268	}	60	}
269		61
270	/*	62	/*
271	* Returns true if the given coordinate is blocked except by the	63	* Returns true if the given coordinate is blocked except by the
272	* object passed is not blocking. This is used with	64	* object passed is not blocking. This is used with
…		…
280	* by the caller.	72	* by the caller.
281	*/	73	*/
282	int	74	int
283	blocked_link (object *ob, maptile *m, int sx, int sy)	75	blocked_link (object *ob, maptile *m, int sx, int sy)
284	{	76	{
285	object *tmp;
286	int mflags, blocked;
287
288	/* 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
289	* have already checked this.	78	* have already checked this.
290	*/	79	*/
291	if (OUT_OF_REAL_MAP (m, sx, sy))	80	if (OUT_OF_REAL_MAP (m, sx, sy))
292	{	81	{
293	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");	82	LOG (llevError | logBacktrace, "blocked_link: Passed map, x, y coordinates outside of map\n");
294	return 1;	83	return 1;
295	}	84	}
296		85
297	/* Save some cycles - instead of calling get_map_flags(), just get the value	86	mapspace &ms = m->at (sx, sy);
298	* directly.
299	*/
300	mflags = m->spaces[sx + m->width * sy].flags;
301		87
302	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	88	int mflags = ms.flags ();
		89	int blocked = ms.move_block;
303		90
304	/* If space is currently not blocked by anything, no need to	91	/* If space is currently not blocked by anything, no need to
305	* go further. Not true for players - all sorts of special	92	* go further. Not true for players - all sorts of special
306	* things we need to do for players.	93	* things we need to do for players.
307	*/	94	*/
308	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	95	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && blocked == 0)
309	return 0;	96	return 0;
310		97
311	/* 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
312	* 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
313	* 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
314	* or another. Likewise, only if something is blocking us do we	101	* or another. Likewise, only if something is blocking us do we
315	* need to investigate if there is a special circumstance that would	102	* need to investigate if there is a special circumstance that would
316	* let the player through (inventory checkers for example)	103	* let the player through (inventory checkers for example)
317	*/	104	*/
318	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	105	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
319	return 0;	106	return 0;
320		107
321	if (ob->head != NULL)
322	ob = ob->head;	108	ob = ob->head_ ();
323		109
324	/* 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
325	* 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
326	* true. If we get through the entire stack, that must mean	112	* true. If we get through the entire stack, that must mean
327	* ob is blocking it, so return 0.	113	* ob is blocking it, so return 0.
328	*/	114	*/
329	for (tmp = GET_MAP_OB (m, sx, sy); tmp != NULL; tmp = tmp->above)	115	for (object *tmp = ms.top; tmp; tmp = tmp->below)
330	{	116	{
331		117	if (OB_MOVE_BLOCK (ob, tmp))
332	/* This must be before the checks below. Code for inventory checkers. */
333	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
334	{	118	{
335	/* If last_sp is set, the player/monster needs an object,	119	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
336	* so we check for it. If they don't have it, they can't	120	if (RESULT_INT (0))
337	* pass through this space.	121	return 1;
338	*/	122	else
339	if (tmp->last_sp)	123	continue;
		124
		125	if (tmp->type == CHECK_INV)
340	{	126	{
341	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))
342	return 1;	131	return 1;
343	else	132	}
344	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;
345	}	142	}
346	else	143	else
347	{	144	return 1; // unconditional block
348	/* In this case, the player must not have the object -	145
349	* if they do, they can't pass through.
350	*/
351	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
352	return 1;
353	else
354	continue;
355	}
356	} /* if check_inv */
357	else	146	} else {
358	{	147	// space does not block the ob, directly, but
359	/* Broke apart a big nasty if into several here to make	148	// anything alive that is not a door still
360	* this more readable. first check - if the space blocks	149	// blocks anything
361	* movement, can't move here.	150
362	* second - if a monster, can't move there, unles it is a	151	if (tmp->flag [FLAG_ALIVE]
363	* hidden dm	152	&& tmp->type != DOOR
364	*/	153	&& tmp->head_ () != ob) //TODO: maybe move these check up?
365	if (OB_MOVE_BLOCK (ob, tmp))
366	return 1;
367	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
368	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))
369	return 1;	154	return 1;
370	}	155	}
371
372	}	156	}
		157
373	return 0;	158	return 0;
374	}	159	}
375		160
376
377	/*	161	/*
378	* 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
379	* This is meant for multi space objects - for single space objecs,	163	* spot. This is meant for multi space objects - for single space objecs,
380	* just calling get_map_blocked and checking that against movement type	164	* just calling get_map_blocked and checking that against movement type
381	* of object. This function goes through all the parts of the	165	* of object. This function goes through all the parts of the multipart
382	* multipart object and makes sure they can be inserted.	166	* object and makes sure they can be inserted.
383	*	167	*
384	* 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.
385	*	169	*
386	* This function has been used to deprecate arch_out_of_map -	170	* This function has been used to deprecate arch_out_of_map -
387	* this function also does that check, and since in most cases,	171	* this function also does that check, and since in most cases,
…		…
398	*	182	*
399	* Note this used to be arch_blocked, but with new movement	183	* Note this used to be arch_blocked, but with new movement
400	* 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
401	* against the move_block values.	185	* against the move_block values.
402	*/	186	*/
403		187	bool
404	int	188	object::blocked (maptile *m, int x, int y) const
405	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)
406	{	189	{
407	archetype *tmp;	190	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
408	int flag;
409	maptile *m1;
410	sint16 sx, sy;
411
412	if (ob == NULL)
413	{
414	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
415	if (flag & P_OUT_OF_MAP)
416	return P_OUT_OF_MAP;
417
418	/* don't have object, so don't know what types would block */
419	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));
420	}	191	{
		192	mapxy pos (m, x + tmp->x, y + tmp->y);
421		193
422	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	194	if (!pos.normalise ())
423	{	195	return 1;
424	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
425		196
426	if (flag & P_OUT_OF_MAP)	197	mapspace &ms = *pos;
427	return P_OUT_OF_MAP;	198
428	if (flag & P_IS_ALIVE)	199	if (ms.flags () & P_IS_ALIVE)
429	return P_IS_ALIVE;	200	return 1;
430		201
431	/* find_first_free_spot() calls this function. However, often	202	/* However, often ob doesn't have any move type
432	* ob doesn't have any move type (when used to place exits)	203	* (signifying non-moving objects)
433	* 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.
434	*/	205	*/
435		206	if (!move_type && ms.move_block != MOVE_ALL)
436	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)
437	continue;	207	continue;
438		208
439	/* 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
440	* head of the object should correspond for the entire object.	210	* head of the object should correspond for the entire object.
441	*/	211	*/
442	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	212	if (ms.blocks (move_type))
443	return AB_NO_PASS;	213	return 1;
444
445	}	214	}
		215
446	return 0;	216	return 0;
447	}	217	}
448		218
449	/* When the map is loaded, load_object does not actually insert objects	219	//-GPL
450	* into inventory, but just links them. What this does is go through
451	* and insert them properly.
452	* The object 'container' is the object that contains the inventory.
453	* This is needed so that we can update the containers weight.
454	*/
455		220
456	void	221	void
457	fix_container (object *container)	222	maptile::set_object_flag (int flag, int value)
458	{	223	{
459	object *tmp = container->inv, *next;	224	if (!spaces)
		225	return;
460		226
461	container->inv = NULL;	227	for (mapspace *ms = spaces + size (); ms-- > spaces; )
462	while (tmp != NULL)	228	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
463	{	229	tmp->flag [flag] = value;
464	next = tmp->below;
465	if (tmp->inv)
466	fix_container (tmp);
467	(void) insert_ob_in_ob (tmp, container);
468	tmp = next;
469	}
470	/* sum_weight will go through and calculate what all the containers are
471	* carrying.
472	*/
473	sum_weight (container);
474	}	230	}
		231
		232	void
		233	maptile::post_load_original ()
		234	{
		235	if (!spaces)
		236	return;
		237
		238	set_object_flag (FLAG_OBJ_ORIGINAL);
		239
		240	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		241	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		242	INVOKE_OBJECT (RESET, tmp);
		243	}
		244
		245	void
		246	maptile::post_load ()
		247	{
		248	#if 0
		249	if (!spaces)
		250	return;
		251
		252	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		253	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		254	; // nop
		255	#endif
		256	}
		257
		258	//+GPL
475		259
476	/* 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
477	* 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
478	* 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
479	* they are saved). We do have to look for the old maps that did save	263	* they are saved).
480	* the more sections and not re-add sections for them.
481	*/	264	*/
482		265	void
483	static void	266	maptile::link_multipart_objects ()
484	link_multipart_objects (maptile *m)
485	{	267	{
486	int x, y;	268	if (!spaces)
487	object *tmp, *op, *last, *above;	269	return;
488	archetype *at;
489		270
490	for (x = 0; x < MAP_WIDTH (m); x++)	271	for (mapspace *ms = spaces + size (); ms-- > spaces; )
491	for (y = 0; y < MAP_HEIGHT (m); y++)	272	{
492	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)	273	object *op = ms->bot;
		274	while (op)
493	{	275	{
494	above = tmp->above;
495
496	/* already multipart - don't do anything more */	276	/* already multipart - don't do anything more */
497	if (tmp->head || tmp->more)	277	if (op->head_ () == op && !op->more && op->arch->more)
498	continue;
499
500	/* If there is nothing more to this object, this for loop
501	* won't do anything.
502	*/
503	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
504	{	278	{
505	op = arch_to_object (at);	279	op->remove ();
		280	op->expand_tail ();
506		281
507	/* update x,y coordinates */	282	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
508	op->x += tmp->x;	283	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
509	op->y += tmp->y;	284	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
510	op->head = tmp;	285	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
511	op->map = m;	286
512	last->more = op;	287	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
513	op->name = tmp->name;	288	// so we have to reset the iteration through the mapspace
514	op->title = tmp->title;
515	/* we could link all the parts onto tmp, and then just
516	* call insert_ob_in_map once, but the effect is the same,
517	* as insert_ob_in_map will call itself with each part, and
518	* the coding is simpler to just to it here with each part.
519	*/	289	}
520	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	290	else
521	} /* for at = tmp->arch->more */	291	op = op->above;
522	} /* for objects on this space */	292	}
		293	}
523	}	294	}
		295
		296	//-GPL
524		297
525	/*	298	/*
526	* 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
527	* file pointer.	300	* file pointer.
528	* mapflags is the same as we get with load_original_map
529	*/	301	*/
530	void	302	bool
531	load_objects (maptile *m, object_thawer & fp, int mapflags)	303	maptile::_load_objects (object_thawer &f)
532	{	304	{
533	int i, j;	305	for (;;)
534	int unique;
535	object *op, *prev = NULL, *last_more = NULL, *otmp;
536
537	op = object::create ();
538	op->map = m; /* To handle buttons correctly */
539
540	while ((i = load_object (fp, op, mapflags)))
541	{	306	{
542	/* if the archetype for the object is null, means that we	307	coroapi::cede_to_tick (); // cede once in a while
543	* got an invalid object. Don't do anything with it - the game	308
544	* or editor will not be able to do anything with it either.	309	switch (f.kw)
545	*/
546	if (op->arch == NULL)
547	{	310	{
548	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	311	case KW_arch:
		312	if (object *op = object::read (f, this))
		313	{
		314	// TODO: why?
		315	if (op->inv)
		316	{
		317	op->carrying = 0;
		318	op->update_weight ();
		319	}
		320
		321	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		322	{
		323	// we insert manually because
		324	// a) its way faster
		325	// b) we remove manually, too, and there are good reasons for that
		326	// c) it's correct
		327	mapspace &ms = at (op->x, op->y);
		328
		329	op->flag [FLAG_REMOVED] = false;
		330
		331	op->above = 0;
		332	op->below = ms.top;
		333
		334	*(ms.top ? &ms.top->above : &ms.bot) = op;
		335
		336	ms.top = op;
		337	ms.flags_ = 0;
		338	}
		339	else
		340	{
		341	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		342	op->destroy ();
		343	}
		344	}
		345
549	continue;	346	continue;
550	}
551		347
552
553	switch (i)
554	{
555	case LL_NORMAL:
556	/* if we are loading an overlay, put the floors on the bottom */
557	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
558	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
559	else
560	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
561
562	if (op->inv)
563	sum_weight (op);
564
565	prev = op, last_more = op;
566	break;
567
568	case LL_MORE:	348	case KW_EOF:
569	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);	349	return true;
570	op->head = prev, last_more->more = op, last_more = op;	350
		351	default:
		352	if (!f.parse_error ("map file"))
		353	return false;
571	break;	354	break;
572	}	355	}
573		356
574	if (mapflags & MAP_STYLE)	357	f.next ();
575	remove_from_active_list (op);
576
577	op = object::create ();
578	op->map = m;
579	}
580
581	for (i = 0; i < m->width; i++)
582	{	358	}
583	for (j = 0; j < m->height; j++)	359
		360	return true;
		361	}
		362
		363	void
		364	maptile::activate ()
		365	{
		366	if (spaces)
		367	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		368	for (object *op = ms->bot; op; op = op->above)
		369	op->activate_recursive ();
		370	}
		371
		372	void
		373	maptile::deactivate ()
		374	{
		375	if (spaces)
		376	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		377	for (object *op = ms->bot; op; op = op->above)
		378	op->deactivate_recursive ();
		379	}
		380
		381	bool
		382	maptile::_save_objects (object_freezer &f, int flags)
		383	{
		384	coroapi::cede_to_tick ();
		385
		386	if (flags & IO_HEADER)
		387	_save_header (f);
		388
		389	if (!spaces)
		390	return false;
		391
		392	for (int i = 0; i < size (); ++i)
		393	{
		394	bool unique = 0;
		395
		396	for (object *op = spaces [i].bot; op; op = op->above)
584	{	397	{
585	unique = 0;	398	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
586	/* check for unique items, or unique squares */	399
587	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)	400	if (expect_false (!op->can_map_save ()))
		401	continue;
		402
		403	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
588	{	404	{
589	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))	405	if (flags & IO_UNIQUES)
590	unique = 1;	406	op->write (f);
591
592	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
593	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
594	}	407	}
		408	else if (expect_true (flags & IO_OBJECTS))
		409	op->write (f);
595	}	410	}
596	}	411	}
597		412
598	op->destroy ();	413	coroapi::cede_to_tick ();
599	link_multipart_objects (m);
600	}
601		414
602	/* This saves all the objects on the map in a non destructive fashion.	415	return true;
603	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,	416	}
604	* and we only save the head of multi part objects - this is needed	417
605	* in order to do map tiling properly.	418	bool
		419	maptile::_save_objects (const char *path, int flags)
		420	{
		421	object_freezer freezer;
		422
		423	if (!_save_objects (freezer, flags))
		424	return false;
		425
		426	return freezer.save (path);
		427	}
		428
		429	void
		430	maptile::init ()
		431	{
		432	in_memory = MAP_SWAPPED;
		433
		434	/* The maps used to pick up default x and y values from the
		435	* map archetype. Mimic that behaviour.
606	*/	436	*/
607	void	437	width = 16;
608	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)	438	height = 16;
609	{	439	timeout = 300;
610	int i, j = 0, unique = 0;	440	max_items = MAX_ITEM_PER_ACTION;
611	object *op;	441	max_volume = 2000000; // 2m³
612		442	reset_timeout = 0;
613	/* first pass - save one-part objects */	443	enter_x = 0;
614	for (i = 0; i < MAP_WIDTH (m); i++)	444	enter_y = 0;
615	for (j = 0; j < MAP_HEIGHT (m); j++)
616	{
617	unique = 0;
618	for (op = get_map_ob (m, i, j); op; op = op->above)
619	{
620	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
621	unique = 1;
622
623	if (op->type == PLAYER)
624	{
625	LOG (llevDebug, "Player on map that is being saved\n");
626	continue;
627	}
628
629	if (op->head || op->owner)
630	continue;
631
632	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
633	save_object (fp2, op, 3);
634	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
635	save_object (fp, op, 3);
636
637	} /* for this space */
638	} /* for this j */
639	}	445	}
640		446
641	maptile::maptile ()	447	maptile::maptile ()
642	{	448	{
643	in_memory = MAP_SWAPPED;	449	init ();
644	/* The maps used to pick up default x and y values from the
645	* map archetype. Mimic that behaviour.
646	*/
647	MAP_WIDTH (this) = 16;
648	MAP_HEIGHT (this) = 16;
649	MAP_RESET_TIMEOUT (this) = 0;
650	MAP_TIMEOUT (this) = 300;
651	MAP_ENTER_X (this) = 0;
652	MAP_ENTER_Y (this) = 0;
653	/*set part to -1 indicating conversion to weather map not yet done */
654	MAP_WORLDPARTX (this) = -1;
655	MAP_WORLDPARTY (this) = -1;
656	}	450	}
657		451
658	/*	452	maptile::maptile (int w, int h)
659	* Allocates, initialises, and returns a pointer to a maptile.
660	* Modified to no longer take a path option which was not being
661	* used anyways. MSW 2001-07-01
662	*/
663	maptile *
664	get_linked_map (void)
665	{	453	{
666	maptile *mp, *map = new maptile;	454	init ();
667		455
668	for (mp = first_map; mp && mp->next; mp = mp->next);	456	width = w;
		457	height = h;
669		458
670	if (mp == NULL)	459	alloc ();
671	first_map = map;
672	else
673	mp->next = map;
674
675	return map;
676	}	460	}
677		461
678	/*	462	/*
679	* Allocates the arrays contained in a maptile.	463	* Allocates the arrays contained in a maptile.
680	* This basically allocates the dynamic array of spaces for the	464	* This basically allocates the dynamic array of spaces for the
681	* map.	465	* map.
682	*/	466	*/
683	void	467	void
684	maptile::allocate ()	468	maptile::alloc ()
685	{	469	{
686	in_memory = MAP_IN_MEMORY;
687
688	/* Log this condition and free the storage. We could I suppose
689	* realloc, but if the caller is presuming the data will be intact,
690	* that is their poor assumption.
691	*/
692	if (spaces)	470	if (spaces)
693	{
694	LOG (llevError, "allocate_map called with already allocated map (%s)\n", path);
695	free (spaces);
696	}
697
698	spaces = (MapSpace *)
699	calloc (1, width * height * sizeof (MapSpace));
700
701	if (!spaces)
702	fatal (OUT_OF_MEMORY);
703	}
704
705	/* Create and returns a map of the specific size. Used
706	* in random map code and the editor.
707	*/
708	maptile *
709	get_empty_map (int sizex, int sizey)
710	{
711	maptile *m = get_linked_map ();
712
713	m->width = sizex;
714	m->height = sizey;
715	m->in_memory = MAP_SWAPPED;
716	m->allocate ();
717
718	return m;	471	return;
		472
		473	spaces = salloc0<mapspace> (size ());
719	}	474	}
		475
		476	//+GPL
720		477
721	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	478	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
722	* corresponding to that string. Memory is allocated for this, it must be freed	479	* corresponding to that string. Memory is allocated for this, it must be freed
723	* at a later date.	480	* at a later date.
724	* Called by parse_map_headers below.	481	* Called by parse_map_headers below.
725	*/	482	*/
726
727	static shopitems *	483	static shopitems *
728	parse_shop_string (const char *input_string)	484	parse_shop_string (const char *input_string)
729	{	485	{
730	char *shop_string, *p, *q, *next_semicolon, *next_colon;	486	char *shop_string, *p, *q, *next_semicolon, *next_colon;
731	shopitems *items = NULL;	487	shopitems *items = NULL;
…		…
740	p = strchr (p, ';');	496	p = strchr (p, ';');
741	number_of_entries++;	497	number_of_entries++;
742	if (p)	498	if (p)
743	p++;	499	p++;
744	}	500	}
		501
745	p = shop_string;	502	p = shop_string;
746	strip_endline (p);	503	strip_endline (p);
747	items = new shopitems[number_of_entries + 1];	504	items = new shopitems[number_of_entries + 1];
748	for (i = 0; i < number_of_entries; i++)	505	for (i = 0; i < number_of_entries; i++)
749	{	506	{
750	if (!p)	507	if (!p)
751	{	508	{
752	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	509	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
753	break;	510	break;
754	}	511	}
		512
755	next_semicolon = strchr (p, ';');	513	next_semicolon = strchr (p, ';');
756	next_colon = strchr (p, ':');	514	next_colon = strchr (p, ':');
757	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	515	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
758	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	516	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
759	items[i].strength = atoi (strchr (p, ':') + 1);	517	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
786	* the next entry while we're at it, better print a warning	544	* the next entry while we're at it, better print a warning
787	*/	545	*/
788	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	546	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
789	}	547	}
790	}	548	}
		549
791	items[i].index = number_of_entries;	550	items[i].index = number_of_entries;
792	if (next_semicolon)	551	if (next_semicolon)
793	p = ++next_semicolon;	552	p = ++next_semicolon;
794	else	553	else
795	p = NULL;	554	p = NULL;
796	}	555	}
		556
797	free (shop_string);	557	free (shop_string);
798	return items;	558	return items;
799	}	559	}
800		560
801	/* opposite of parse string, this puts the string that was originally fed in to	561	/* opposite of parse string, this puts the string that was originally fed in to
802	* the map (or something equivilent) into output_string. */	562	* the map (or something equivilent) into output_string. */
803	static void	563	static const char *
804	print_shop_string (maptile *m, char *output_string)	564	print_shop_string (maptile *m)
805	{	565	{
806	int i;	566	static dynbuf_text buf; buf.clear ();
807	char tmp[MAX_BUF];	567	bool first = true;
808		568
809	strcpy (output_string, "");
810	for (i = 0; i < m->shopitems[0].index; i++)	569	for (int i = 0; i < m->shopitems[0].index; i++)
811	{	570	{
		571	if (!first)
		572	buf << ';';
		573
		574	first = false;
		575
812	if (m->shopitems[i].typenum)	576	if (m->shopitems[i].typenum)
813	{	577	{
814	if (m->shopitems[i].strength)	578	if (m->shopitems[i].strength)
815	{
816	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	579	buf.printf ("%s:%d", m->shopitems[i].name, m->shopitems[i].strength);
817	}
818	else	580	else
819	sprintf (tmp, "%s;", m->shopitems[i].name);	581	buf.printf ("%s", m->shopitems[i].name);
820	}	582	}
821	else	583	else
822	{	584	{
823	if (m->shopitems[i].strength)	585	if (m->shopitems[i].strength)
824	{
825	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	586	buf.printf ("*:%d", m->shopitems[i].strength);
826	}
827	else	587	else
828	sprintf (tmp, "*");	588	buf.printf ("*");
829	}	589	}
830	strcat (output_string, tmp);
831	}	590	}
		591
		592	return buf;
832	}	593	}
		594
		595	//-GPL
833		596
834	/* This loads the header information of the map. The header	597	/* This loads the header information of the map. The header
835	* contains things like difficulty, size, timeout, etc.	598	* contains things like difficulty, size, timeout, etc.
836	* this used to be stored in the map object, but with the	599	* this used to be stored in the map object, but with the
837	* addition of tiling, fields beyond that easily named in an	600	* addition of tiling, fields beyond that easily named in an
…		…
839	* put all the stuff in the map object so that names actually make	602	* put all the stuff in the map object so that names actually make
840	* sense.	603	* sense.
841	* This could be done in lex (like the object loader), but I think	604	* This could be done in lex (like the object loader), but I think
842	* currently, there are few enough fields this is not a big deal.	605	* currently, there are few enough fields this is not a big deal.
843	* MSW 2001-07-01	606	* MSW 2001-07-01
844	* return 0 on success, 1 on failure.
845	*/	607	*/
846		608	bool
847	static int	609	maptile::_load_header (object_thawer &thawer)
848	load_map_header (object_thawer & fp, maptile *m)
849	{	610	{
850	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	611	for (;;)
851	int msgpos = 0;
852	int maplorepos = 0;
853
854	while (fgets (buf, HUGE_BUF, fp) != NULL)
855	{	612	{
856	buf[HUGE_BUF - 1] = 0;	613	switch (thawer.kw)
857	key = buf;
858
859	while (isspace (*key))
860	key++;
861
862	if (*key == 0)
863	continue; /* empty line */
864
865	value = strchr (key, ' ');
866
867	if (!value)
868	{	614	{
869	if ((end = strchr (key, '\n')))	615	case KW_msg:
870	*end = 0;	616	thawer.get_ml (KW_endmsg, msg);
		617	break;
		618
		619	case KW_lore: // deliantra extension
		620	thawer.get_ml (KW_endlore, maplore);
		621	break;
		622
		623	case KW_maplore:
		624	thawer.get_ml (KW_endmaplore, maplore);
		625	break;
		626
		627	case KW_arch:
		628	if (strcmp (thawer.get_str (), "map"))
		629	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		630	break;
		631
		632	case KW_oid:
		633	thawer.get (this, thawer.get_sint32 ());
		634	break;
		635
		636	case KW_file_format_version: break; // nop
		637
		638	case KW_name: thawer.get (name); break;
		639	case KW_attach: thawer.get (attach); break;
		640	case KW_reset_time: thawer.get (reset_time); break;
		641	case KW_shopgreed: thawer.get (shopgreed); break;
		642	case KW_shopmin: thawer.get (shopmin); break;
		643	case KW_shopmax: thawer.get (shopmax); break;
		644	case KW_shoprace: thawer.get (shoprace); break;
		645	case KW_outdoor: thawer.get (outdoor); break;
		646
		647	case KW_per_player: thawer.get (per_player); break;
		648	case KW_per_party: thawer.get (per_party); break;
		649	case KW_no_reset: thawer.get (no_reset); break;
		650	case KW_no_drop: thawer.get (no_drop); break;
		651
		652	case KW_region: thawer.get (default_region); break;
		653	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		654
		655	// old names new names
		656	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		657	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		658	case KW_x: case KW_width: thawer.get (width); break;
		659	case KW_y: case KW_height: thawer.get (height); break;
		660	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		661	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		662	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		663	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		664	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		665
		666	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		667	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		668	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		669	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		670	case KW_tile_path_5: thawer.get (tile_path [4]); break;
		671	case KW_tile_path_6: thawer.get (tile_path [5]); break;
		672
		673	case KW_ERROR:
		674	set_key_text (thawer.kw_str, thawer.value);
		675	break;
		676
		677	case KW_end:
		678	thawer.next ();
		679	return true;
		680
		681	default:
		682	if (!thawer.parse_error ("map"))
		683	return false;
		684	break;
871	}	685	}
872	else
873	{
874	*value = 0;
875	value++;
876	end = strchr (value, '\n');
877		686
878	while (isspace (*value))	687	thawer.next ();
879	{
880	value++;
881
882	if (*value == '\0' || value == end)
883	{
884	/* Nothing but spaces. */
885	value = NULL;
886	break;
887	}
888	}
889	}
890
891	if (!end)
892	{
893	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
894	return 1;
895	}
896
897	/* key is the field name, value is what it should be set
898	* to. We've already done the work to null terminate key,
899	* and strip off any leading spaces for both of these.
900	* We have not touched the newline at the end of the line -
901	* these are needed for some values. the end pointer
902	* points to the first of the newlines.
903	* value could be NULL! It would be easy enough to just point
904	* this to "" to prevent cores, but that would let more errors slide
905	* through.
906	*
907	* First check for entries that do not use the value parameter, then
908	* validate that value is given and check for the remaining entries
909	* that use the parameter.
910	*/
911
912	if (!strcmp (key, "msg"))
913	{
914	while (fgets (buf, HUGE_BUF, fp) != NULL)
915	{
916	if (!strcmp (buf, "endmsg\n"))
917	break;
918	else
919	{
920	/* slightly more efficient than strcat */
921	strcpy (msgbuf + msgpos, buf);
922	msgpos += strlen (buf);
923	}
924	}
925	/* There are lots of maps that have empty messages (eg, msg/endmsg
926	* with nothing between). There is no reason in those cases to
927	* keep the empty message. Also, msgbuf contains garbage data
928	* when msgpos is zero, so copying it results in crashes
929	*/
930	if (msgpos != 0)
931	m->msg = strdup (msgbuf);
932	}
933	else if (!strcmp (key, "maplore"))
934	{
935	while (fgets (buf, HUGE_BUF, fp) != NULL)
936	{
937	if (!strcmp (buf, "endmaplore\n"))
938	break;
939	else
940	{
941	/* slightly more efficient than strcat */
942	strcpy (maplorebuf + maplorepos, buf);
943	maplorepos += strlen (buf);
944	}
945	}
946	if (maplorepos != 0)
947	m->maplore = strdup (maplorebuf);
948	}
949	else if (!strcmp (key, "end"))
950	{
951	break;
952	}
953	else if (value == NULL)
954	{
955	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
956	}
957	else if (!strcmp (key, "arch"))
958	{
959	/* This is an oddity, but not something we care about much. */
960	if (strcmp (value, "map\n"))
961	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
962	}
963	else if (!strcmp (key, "name"))
964	{
965	*end = 0;
966	m->name = strdup (value);
967	}
968	/* first strcmp value on these are old names supported
969	* for compatibility reasons. The new values (second) are
970	* what really should be used.
971	*/
972	else if (!strcmp (key, "oid"))
973	fp.get (m, atoi (value));
974	else if (!strcmp (key, "attach"))
975	m->attach = value;
976	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
977	m->enter_x = atoi (value);
978	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
979	m->enter_y = atoi (value);
980	else if (!strcmp (key, "x") || !strcmp (key, "width"))
981	m->width = atoi (value);
982	else if (!strcmp (key, "y") || !strcmp (key, "height"))
983	m->height = atoi (value);
984	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
985	m->reset_timeout = atoi (value);
986	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
987	m->timeout = atoi (value);
988	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
989	m->difficulty = clamp (atoi (value), 1, settings.max_level);
990	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
991	m->darkness = atoi (value);
992	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
993	m->fixed_resettime = atoi (value);
994	else if (!strcmp (key, "unique"))
995	m->unique = atoi (value);
996	else if (!strcmp (key, "template"))
997	m->templatemap = atoi (value);
998	else if (!strcmp (key, "region"))
999	m->region = get_region_by_name (value);
1000	else if (!strcmp (key, "shopitems"))
1001	{
1002	*end = 0;
1003	m->shopitems = parse_shop_string (value);
1004	}
1005	else if (!strcmp (key, "shopgreed"))
1006	m->shopgreed = atof (value);
1007	else if (!strcmp (key, "shopmin"))
1008	m->shopmin = atol (value);
1009	else if (!strcmp (key, "shopmax"))
1010	m->shopmax = atol (value);
1011	else if (!strcmp (key, "shoprace"))
1012	{
1013	*end = 0;
1014	m->shoprace = strdup (value);
1015	}
1016	else if (!strcmp (key, "outdoor"))
1017	m->outdoor = atoi (value);
1018	else if (!strcmp (key, "temp"))
1019	m->temp = atoi (value);
1020	else if (!strcmp (key, "pressure"))
1021	m->pressure = atoi (value);
1022	else if (!strcmp (key, "humid"))
1023	m->humid = atoi (value);
1024	else if (!strcmp (key, "windspeed"))
1025	m->windspeed = atoi (value);
1026	else if (!strcmp (key, "winddir"))
1027	m->winddir = atoi (value);
1028	else if (!strcmp (key, "sky"))
1029	m->sky = atoi (value);
1030	else if (!strcmp (key, "nosmooth"))
1031	m->nosmooth = atoi (value);
1032	else if (!strncmp (key, "tile_path_", 10))
1033	{
1034	int tile = atoi (key + 10);
1035
1036	if (tile < 1 || tile > 4)
1037	{
1038	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1039	}
1040	else
1041	{
1042	char *path;
1043
1044	*end = 0;
1045
1046	if (m->tile_path[tile - 1])
1047	{
1048	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1049	free (m->tile_path[tile - 1]);
1050	m->tile_path[tile - 1] = NULL;
1051	}
1052
1053	if (check_path (value, 1) != -1)
1054	{
1055	/* The unadorned path works. */
1056	path = value;
1057	}
1058	else
1059	{
1060	/* Try again; it could be a relative exit. */
1061
1062	path = path_combine_and_normalize (m->path, value);
1063
1064	if (check_path (path, 1) == -1)
1065	{
1066	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1067	path = NULL;
1068	}
1069	}
1070
1071	if (editor)
1072	{
1073	/* Use the value as in the file. */
1074	m->tile_path[tile - 1] = strdup (value);
1075	}
1076	else if (path != NULL)
1077	{
1078	/* Use the normalized value. */
1079	m->tile_path[tile - 1] = strdup (path);
1080	}
1081	} /* end if tile direction (in)valid */
1082	}
1083	else
1084	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1085	}
1086
1087	if (!key || strcmp (key, "end"))
1088	{	688	}
1089	LOG (llevError, "Got premature eof on map header!\n");
1090	return 1;
1091	}
1092		689
1093	return 0;	690	abort ();
1094	}	691	}
1095		692
1096	/*	693	//+GPL
1097	* Opens the file "filename" and reads information about the map
1098	* from the given file, and stores it in a newly allocated
1099	* maptile. A pointer to this structure is returned, or NULL on failure.
1100	* flags correspond to those in map.h. Main ones used are
1101	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1102	* MAP_BLOCK, in which case we block on this load. This happens in all
1103	* cases, no matter if this flag is set or not.
1104	* MAP_STYLE: style map - don't add active objects, don't add to server
1105	* managed map list.
1106	*/
1107
1108	maptile *
1109	load_original_map (const char *filename, int flags)
1110	{
1111	maptile *m;
1112	char pathname[MAX_BUF];
1113
1114	if (flags & MAP_PLAYER_UNIQUE)
1115	strcpy (pathname, filename);
1116	else if (flags & MAP_OVERLAY)
1117	strcpy (pathname, create_overlay_pathname (filename));
1118	else
1119	strcpy (pathname, create_pathname (filename));
1120
1121	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1122
1123	object_thawer thawer (pathname);
1124
1125	if (!thawer)
1126	return 0;
1127
1128	m = get_linked_map ();
1129
1130	strcpy (m->path, filename);
1131	if (load_map_header (thawer, m))
1132	{
1133	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1134	delete_map (m);
1135	return NULL;
1136	}
1137
1138	m->allocate ();
1139
1140	m->in_memory = MAP_LOADING;
1141	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1142
1143	m->in_memory = MAP_IN_MEMORY;
1144	if (!MAP_DIFFICULTY (m))
1145	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1146	set_map_reset_time (m);
1147	m->instantiate ();
1148	return (m);
1149	}
1150
1151	/*
1152	* Loads a map, which has been loaded earlier, from file.
1153	* Return the map object we load into (this can change from the passed
1154	* option if we can't find the original map)
1155	*/
1156
1157	static maptile *
1158	load_temporary_map (maptile *m)
1159	{
1160	char buf[MAX_BUF];
1161
1162	if (!m->tmpname)
1163	{
1164	LOG (llevError, "No temporary filename for map %s\n", m->path);
1165	strcpy (buf, m->path);
1166	delete_map (m);
1167	m = load_original_map (buf, 0);
1168	if (m == NULL)
1169	return NULL;
1170	fix_auto_apply (m); /* Chests which open as default */
1171	return m;
1172	}
1173
1174	object_thawer thawer (m->tmpname);
1175
1176	if (!thawer)
1177	{
1178	strcpy (buf, m->path);
1179	delete_map (m);
1180	m = load_original_map (buf, 0);
1181	if (!m)
1182	return NULL;
1183	fix_auto_apply (m); /* Chests which open as default */
1184	return m;
1185	}
1186
1187	if (load_map_header (thawer, m))
1188	{
1189	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1190	delete_map (m);
1191	m = load_original_map (m->path, 0);
1192	return NULL;
1193	}
1194
1195	m->allocate ();
1196
1197	m->in_memory = MAP_LOADING;
1198	load_objects (m, thawer, 0);
1199
1200	m->in_memory = MAP_IN_MEMORY;
1201	INVOKE_MAP (SWAPIN, m);
1202	return m;
1203	}
1204
1205	/*
1206	* Loads a map, which has been loaded earlier, from file.
1207	* Return the map object we load into (this can change from the passed
1208	* option if we can't find the original map)
1209	*/
1210
1211	maptile *
1212	load_overlay_map (const char *filename, maptile *m)
1213	{
1214	char pathname[MAX_BUF];
1215
1216	strcpy (pathname, create_overlay_pathname (filename));
1217
1218	object_thawer thawer (pathname);
1219
1220	if (!thawer)
1221	return m;
1222
1223	if (load_map_header (thawer, m))
1224	{
1225	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1226	delete_map (m);
1227	m = load_original_map (m->path, 0);
1228	return NULL;
1229	}
1230	/*m->allocate ();*/
1231
1232	m->in_memory = MAP_LOADING;
1233	load_objects (m, thawer, MAP_OVERLAY);
1234
1235	m->in_memory = MAP_IN_MEMORY;
1236	return m;
1237	}
1238		694
1239	/******************************************************************************	695	/******************************************************************************
1240	* This is the start of unique map handling code	696	* This is the start of unique map handling code
1241	*****************************************************************************/	697	*****************************************************************************/
1242		698
1243	/* This goes through map 'm' and removed any unique items on the map. */	699	/* This goes through the maptile and removed any unique items on the map. */
1244	static void	700	void
1245	delete_unique_items (maptile *m)	701	maptile::clear_unique_items ()
1246	{	702	{
1247	int i, j, unique;	703	for (int i = 0; i < size (); ++i)
1248	object *op, *next;
1249
1250	for (i = 0; i < MAP_WIDTH (m); i++)
1251	for (j = 0; j < MAP_HEIGHT (m); j++)
1252	{	704	{
1253	unique = 0;	705	int unique = 0;
		706	for (object *op = spaces [i].bot; op; )
		707	{
		708	object *above = op->above;
1254		709
1255	for (op = get_map_ob (m, i, j); op; op = next)	710	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		711	unique = 1;
		712
		713	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
		714	op->destroy ();
		715
		716	op = above;
		717	}
		718	}
		719	}
		720
		721	//-GPL
		722
		723	bool
		724	maptile::_save_header (object_freezer &freezer)
		725	{
		726	#define MAP_OUT(k) freezer.put (KW(k), k)
		727	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
		728
		729	MAP_OUT2 (arch, CS(map));
		730
		731	if (name) MAP_OUT (name);
		732	MAP_OUT (swap_time);
		733	MAP_OUT (reset_time);
		734	MAP_OUT (reset_timeout);
		735	MAP_OUT (fixed_resettime);
		736	MAP_OUT (no_reset);
		737	MAP_OUT (no_drop);
		738	MAP_OUT (difficulty);
		739	if (default_region) MAP_OUT2 (region, default_region->name);
		740
		741	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
		742	MAP_OUT (shopgreed);
		743	MAP_OUT (shopmin);
		744	MAP_OUT (shopmax);
		745	if (shoprace) MAP_OUT (shoprace);
		746
		747	MAP_OUT (width);
		748	MAP_OUT (height);
		749	MAP_OUT (enter_x);
		750	MAP_OUT (enter_y);
		751	MAP_OUT (darkness);
		752	MAP_OUT (outdoor);
		753
		754	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
		755	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
		756
		757	MAP_OUT (per_player);
		758	MAP_OUT (per_party);
		759
		760	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
		761	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
		762	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
		763	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
		764	if (tile_path [4]) MAP_OUT2 (tile_path_5, tile_path [4]);
		765	if (tile_path [5]) MAP_OUT2 (tile_path_6, tile_path [5]);
		766
		767	freezer.put (this);
		768	freezer.put (KW(end));
		769
		770	return true;
		771	}
		772
		773	bool
		774	maptile::_save_header (const char *path)
		775	{
		776	object_freezer freezer;
		777
		778	if (!_save_header (freezer))
		779	return false;
		780
		781	return freezer.save (path);
		782	}
		783
		784	//+GPL
		785
		786	/*
		787	* Remove and free all objects in the given map.
		788	*/
		789	void
		790	maptile::clear ()
		791	{
		792	if (spaces)
		793	{
		794	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		795	while (object *op = ms->bot)
1256	{	796	{
		797	// manually remove, as to not trigger anything
1257	next = op->above;	798	if (ms->bot = op->above)
		799	ms->bot->below = 0;
1258		800
1259	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	801	op->flag [FLAG_REMOVED] = true;
1260	unique = 1;
1261		802
1262	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	803	object *head = op->head_ ();
		804	if (op == head)
		805	op->destroy ();
		806	else if (head->map != op->map)
1263	{	807	{
1264	clean_object (op);	808	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1265
1266	if (QUERY_FLAG (op, FLAG_IS_LINKED))
1267	remove_button_link (op);
1268
1269	op->destroy ();	809	head->destroy ();
1270	}	810	}
1271	}	811	}
		812
		813	sfree0 (spaces, size ());
1272	}	814	}
1273	}
1274		815
1275
1276	/*
1277	* Loads unique objects from file(s) into the map which is in memory
1278	* m is the map to load unique items into.
1279	*/
1280	static void
1281	load_unique_objects (maptile *m)
1282	{
1283	int count;
1284	char firstname[MAX_BUF];
1285
1286	for (count = 0; count < 10; count++)
1287	{
1288	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1289	if (!access (firstname, R_OK))
1290	break;
1291	}
1292	/* If we get here, we did not find any map */
1293	if (count == 10)
1294	return;
1295
1296	object_thawer thawer (firstname);
1297
1298	if (!thawer)
1299	return;
1300
1301	m->in_memory = MAP_LOADING;
1302	if (m->tmpname == NULL) /* if we have loaded unique items from */
1303	delete_unique_items (m); /* original map before, don't duplicate them */
1304	load_objects (m, thawer, 0);
1305
1306	m->in_memory = MAP_IN_MEMORY;
1307	}
1308
1309
1310	/*
1311	* Saves a map to file. If flag is set, it is saved into the same
1312	* file it was (originally) loaded from. Otherwise a temporary
1313	* filename will be genarated, and the file will be stored there.
1314	* The temporary filename will be stored in the maptileure.
1315	* If the map is unique, we also save to the filename in the map
1316	* (this should have been updated when first loaded)
1317	*/
1318
1319	int
1320	new_save_map (maptile *m, int flag)
1321	{
1322	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1323	int i;
1324
1325	if (flag && !*m->path)
1326	{
1327	LOG (llevError, "Tried to save map without path.\n");
1328	return -1;
1329	}
1330
1331	if (flag || (m->unique) || (m->templatemap))
1332	{
1333	if (!m->unique && !m->templatemap)
1334	{ /* flag is set */
1335	if (flag == 2)
1336	strcpy (filename, create_overlay_pathname (m->path));
1337	else
1338	strcpy (filename, create_pathname (m->path));
1339	}
1340	else
1341	strcpy (filename, m->path);
1342
1343	make_path_to_file (filename);
1344	}
1345	else
1346	{
1347	if (!m->tmpname)
1348	m->tmpname = tempnam (settings.tmpdir, NULL);
1349
1350	strcpy (filename, m->tmpname);
1351	}
1352
1353	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1354	m->in_memory = MAP_SAVING;
1355
1356	object_freezer freezer;
1357
1358	/* legacy */
1359	fprintf (freezer, "arch map\n");
1360	if (m->name)
1361	fprintf (freezer, "name %s\n", m->name);
1362	if (!flag)
1363	fprintf (freezer, "swap_time %d\n", m->swap_time);
1364	if (m->reset_timeout)
1365	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1366	if (m->fixed_resettime)
1367	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1368	/* we unfortunately have no idea if this is a value the creator set
1369	* or a difficulty value we generated when the map was first loaded
1370	*/
1371	if (m->difficulty)
1372	fprintf (freezer, "difficulty %d\n", m->difficulty);
1373	if (m->region)
1374	fprintf (freezer, "region %s\n", m->region->name);
1375	if (m->shopitems)
1376	{
1377	print_shop_string (m, shop);
1378	fprintf (freezer, "shopitems %s\n", shop);
1379	}
1380	if (m->shopgreed)
1381	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1382	if (m->shopmin)
1383	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1384	if (m->shopmax)
1385	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1386	if (m->shoprace)
1387	fprintf (freezer, "shoprace %s\n", m->shoprace);
1388	if (m->darkness)
1389	fprintf (freezer, "darkness %d\n", m->darkness);
1390	if (m->width)
1391	fprintf (freezer, "width %d\n", m->width);
1392	if (m->height)
1393	fprintf (freezer, "height %d\n", m->height);
1394	if (m->enter_x)
1395	fprintf (freezer, "enter_x %d\n", m->enter_x);
1396	if (m->enter_y)
1397	fprintf (freezer, "enter_y %d\n", m->enter_y);
1398	if (m->msg)
1399	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1400	if (m->maplore)
1401	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1402	if (m->unique)
1403	fprintf (freezer, "unique %d\n", m->unique);
1404	if (m->templatemap)
1405	fprintf (freezer, "template %d\n", m->templatemap);
1406	if (m->outdoor)
1407	fprintf (freezer, "outdoor %d\n", m->outdoor);
1408	if (m->temp)
1409	fprintf (freezer, "temp %d\n", m->temp);
1410	if (m->pressure)
1411	fprintf (freezer, "pressure %d\n", m->pressure);
1412	if (m->humid)
1413	fprintf (freezer, "humid %d\n", m->humid);
1414	if (m->windspeed)
1415	fprintf (freezer, "windspeed %d\n", m->windspeed);
1416	if (m->winddir)
1417	fprintf (freezer, "winddir %d\n", m->winddir);
1418	if (m->sky)
1419	fprintf (freezer, "sky %d\n", m->sky);
1420	if (m->nosmooth)
1421	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1422
1423	/* Save any tiling information, except on overlays */
1424	if (flag != 2)
1425	for (i = 0; i < 4; i++)
1426	if (m->tile_path[i])
1427	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1428
1429	freezer.put (m);
1430	fprintf (freezer, "end\n");
1431
1432	/* In the game save unique items in the different file, but
1433	* in the editor save them to the normal map file.
1434	* If unique map, save files in the proper destination (set by
1435	* player)
1436	*/
1437	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1438	{
1439	object_freezer unique;
1440
1441	if (flag == 2)
1442	save_objects (m, freezer, unique, 2);
1443	else
1444	save_objects (m, freezer, unique, 0);
1445
1446	sprintf (buf, "%s.v00", create_items_path (m->path));
1447
1448	unique.save (buf);
1449	}
1450	else
1451	{ /* save same file when not playing, like in editor */
1452	save_objects (m, freezer, freezer, 0);
1453	}
1454
1455	freezer.save (filename);
1456
1457	return 0;
1458	}
1459
1460
1461	/*
1462	* Remove and free all objects in the inventory of the given object.
1463	* object.c ?
1464	*/
1465
1466	void
1467	clean_object (object *op)
1468	{
1469	object *tmp, *next;
1470
1471	for (tmp = op->inv; tmp; tmp = next)
1472	{
1473	next = tmp->below;
1474
1475	clean_object (tmp);
1476	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1477	remove_button_link (tmp);
1478
1479	tmp->destroy ();
1480	}
1481	}
1482
1483	/*
1484	* Remove and free all objects in the given map.
1485	*/
1486
1487	void
1488	free_all_objects (maptile *m)
1489	{
1490	int i, j;
1491	object *op;
1492
1493	for (i = 0; i < MAP_WIDTH (m); i++)
1494	for (j = 0; j < MAP_HEIGHT (m); j++)
1495	{
1496	object *previous_obj = NULL;
1497
1498	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1499	{
1500	if (op == previous_obj)
1501	{
1502	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1503	break;
1504	}
1505
1506	previous_obj = op;
1507
1508	if (op->head != NULL)
1509	op = op->head;
1510
1511	/* If the map isn't in memory, free_object will remove and
1512	* free objects in op's inventory. So let it do the job.
1513	*/
1514	if (m->in_memory == MAP_IN_MEMORY)
1515	clean_object (op);
1516
1517	op->destroy ();
1518	}
1519	}
1520	}
1521
1522	/*
1523	* Frees everything allocated by the given maptileure.
1524	* don't free tmpname - our caller is left to do that
1525	*/
1526
1527	void
1528	free_map (maptile *m, int flag)
1529	{
1530	int i;
1531
1532	if (!m->in_memory)
1533	{
1534	LOG (llevError, "Trying to free freed map.\n");
1535	return;
1536	}
1537
1538	// TODO: use new/delete
1539	#define FREE_AND_CLEAR(p) { free (p); p = NULL; }
1540
1541	if (flag && m->spaces)
1542	free_all_objects (m);
1543	if (m->name)
1544	FREE_AND_CLEAR (m->name);
1545	if (m->spaces)
1546	FREE_AND_CLEAR (m->spaces);
1547	if (m->msg)
1548	FREE_AND_CLEAR (m->msg);
1549	if (m->maplore)
1550	FREE_AND_CLEAR (m->maplore);
1551
1552	delete [] m->shopitems;
1553	m->shopitems = 0;
1554
1555	if (m->shoprace)
1556	FREE_AND_CLEAR (m->shoprace);
1557
1558	if (m->buttons)	816	if (buttons)
1559	free_objectlinkpt (m->buttons);	817	free_objectlinkpt (buttons), buttons = 0;
1560		818
1561	m->buttons = NULL;	819	sfree0 (regions, size ());
		820	delete [] regionmap; regionmap = 0;
		821	}
1562		822
		823	void
		824	maptile::clear_header ()
		825	{
		826	name = 0;
		827	msg = 0;
		828	maplore = 0;
		829	shoprace = 0;
		830	delete [] shopitems, shopitems = 0;
		831
1563	for (i = 0; i < 4; i++)	832	for (int i = 0; i < TILE_NUM; i++)
1564	{	833	tile_path [i] = 0;
1565	if (m->tile_path[i])
1566	FREE_AND_CLEAR (m->tile_path[i]);
1567	m->tile_map[i] = NULL;
1568	}
1569
1570	m->in_memory = MAP_SWAPPED;
1571
1572	#undef FREE_AND_CLEAR
1573
1574	}	834	}
1575		835
1576	/*	836	maptile::~maptile ()
1577	* function: vanish maptile
1578	* m : pointer to maptile, if NULL no action
1579	* this deletes all the data on the map (freeing pointers)
1580	* and then removes this map from the global linked list of maps.
1581	*/
1582
1583	void
1584	delete_map (maptile *m)
1585	{	837	{
1586	maptile *tmp, *last;	838	assert (destroyed ());
1587	int i;	839	}
1588		840
1589	if (!m)	841	void
1590	return;	842	maptile::clear_links_to (maptile *m)
1591		843	{
1592	m->clear ();
1593
1594	if (m->in_memory == MAP_IN_MEMORY)
1595	{
1596	/* change to MAP_SAVING, even though we are not,
1597	* so that remove_ob doesn't do as much work.
1598	*/
1599	m->in_memory = MAP_SAVING;
1600	free_map (m, 1);
1601	}
1602	/* move this out of free_map, since tmpname can still be needed if
1603	* the map is swapped out.
1604	*/
1605	if (m->tmpname)
1606	{
1607	free (m->tmpname);
1608	m->tmpname = NULL;
1609	}
1610	last = NULL;
1611	/* We need to look through all the maps and see if any maps	844	/* We need to look through all the maps and see if any maps
1612	* are pointing at this one for tiling information. Since	845	* are pointing at this one for tiling information. Since
1613	* tiling can be assymetric, we just can not look to see which	846	* tiling can be asymetric, we just can not look to see which
1614	* maps this map tiles with and clears those.	847	* maps this map tiles with and clears those.
1615	*/	848	*/
1616	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1617	{
1618	if (tmp->next == m)
1619	last = tmp;
1620
1621	/* This should hopefully get unrolled on a decent compiler */
1622	for (i = 0; i < 4; i++)	849	for (int i = 0; i < 4; i++)
1623	if (tmp->tile_map[i] == m)	850	if (tile_map[i] == m)
1624	tmp->tile_map[i] = NULL;	851	tile_map[i] = 0;
1625	}	852	}
1626		853
1627	/* If last is null, then this should be the first map in the list */	854	void
		855	maptile::do_destroy ()
		856	{
		857	attachable::do_destroy ();
		858
		859	clear ();
		860	}
		861
		862	/* decay and destroy perishable items in a map */
		863	// TODO: should be done regularly, not on map load?
		864	void
		865	maptile::do_decay_objects ()
		866	{
1628	if (!last)	867	if (!spaces)
		868	return;
		869
		870	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		871	for (object *above, *op = ms->bot; op; op = above)
1629	{	872	{
1630	if (m == first_map)	873	above = op->above;
1631	first_map = m->next;	874
		875	// do not decay anything above unique floor tiles (yet :)
		876	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		877	break;
		878
		879	bool destroy = 0;
		880
		881	if (op->flag [FLAG_IS_FLOOR]
		882	|| op->flag [FLAG_OBJ_ORIGINAL]
		883	|| op->flag [FLAG_UNIQUE]
		884	|| op->flag [FLAG_OVERLAY_FLOOR]
		885	|| op->flag [FLAG_UNPAID]
		886	|| op->is_alive ())
		887	; // do not decay
		888	else if (op->is_weapon ())
		889	{
		890	op->stats.dam--;
		891	if (op->stats.dam < 0)
		892	destroy = 1;
		893	}
		894	else if (op->is_armor ())
		895	{
		896	op->stats.ac--;
		897	if (op->stats.ac < 0)
		898	destroy = 1;
		899	}
		900	else if (op->type == FOOD)
		901	{
		902	op->stats.food -= rndm (5, 20);
		903	if (op->stats.food < 0)
		904	destroy = 1;
		905	}
1632	else	906	else
1633	/* m->path is a static char, so should hopefully still have
1634	* some useful data in it.
1635	*/
1636	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1637	}
1638	else
1639	last->next = m->next;
1640
1641	delete m;
1642	}
1643
1644
1645
1646	/*
1647	* Makes sure the given map is loaded and swapped in.
1648	* name is path name of the map.
1649	* flags meaning:
1650	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1651	* and don't do unique items or the like.
1652	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1653	* dont do any more name translation on it.
1654	*
1655	* Returns a pointer to the given map.
1656	*/
1657
1658	maptile *
1659	ready_map_name (const char *name, int flags)
1660	{
1661	maptile *m;
1662
1663	if (!name)
1664	return (NULL);
1665
1666	/* Have we been at this level before? */
1667	m = has_been_loaded (name);
1668
1669	/* Map is good to go, so just return it */
1670	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1671	{
1672	return m;
1673	}
1674
1675	/* unique maps always get loaded from their original location, and never
1676	* a temp location. Likewise, if map_flush is set, or we have never loaded
1677	* this map, load it now. I removed the reset checking from here -
1678	* it seems the probability of a player trying to enter a map that should
1679	* reset but hasn't yet is quite low, and removing that makes this function
1680	* a bit cleaner (and players probably shouldn't rely on exact timing for
1681	* resets in any case - if they really care, they should use the 'maps command.
1682	*/
1683	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1684	{
1685
1686	/* first visit or time to reset */
1687	if (m)
1688	{	907	{
1689	clean_tmp_map (m); /* Doesn't make much difference */	908	int mat = op->materials;
1690	delete_map (m);	909
		910	if (mat & M_PAPER
		911	|| mat & M_LEATHER
		912	|| mat & M_WOOD
		913	|| mat & M_ORGANIC
		914	|| mat & M_CLOTH
		915	|| mat & M_LIQUID
		916	|| (mat & M_IRON && rndm (1, 5) == 1)
		917	|| (mat & M_GLASS && rndm (1, 2) == 1)
		918	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		919	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		920	//|| (mat & M_ICE && temp > 32)
		921	)
		922	destroy = 1;
1691	}	923	}
1692		924
1693	/* create and load a map */	925	/* adjust overall chance below */
1694	if (flags & MAP_PLAYER_UNIQUE)	926	if (destroy && rndm (0, 1))
1695	LOG (llevDebug, "Trying to load map %s.\n", name);	927	op->destroy ();
1696	else
1697	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1698
1699	//eval_pv ("$x = Event::time", 1);//D
1700	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1701	return (NULL);
1702	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1703
1704	fix_auto_apply (m); /* Chests which open as default */
1705
1706	/* If a player unique map, no extra unique object file to load.
1707	* if from the editor, likewise.
1708	*/
1709	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1710	load_unique_objects (m);
1711
1712	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1713	{
1714	m = load_overlay_map (name, m);
1715	if (m == NULL)
1716	return NULL;
1717	}	928	}
1718
1719	if (flags & MAP_PLAYER_UNIQUE)
1720	INVOKE_MAP (SWAPIN, m);
1721
1722	}
1723	else
1724	{
1725	/* If in this loop, we found a temporary map, so load it up. */
1726
1727	m = load_temporary_map (m);
1728	if (m == NULL)
1729	return NULL;
1730	load_unique_objects (m);
1731
1732	clean_tmp_map (m);
1733	m->in_memory = MAP_IN_MEMORY;
1734	/* tempnam() on sun systems (probably others) uses malloc
1735	* to allocated space for the string. Free it here.
1736	* In some cases, load_temporary_map above won't find the
1737	* temporary map, and so has reloaded a new map. If that
1738	* is the case, tmpname is now null
1739	*/
1740	if (m->tmpname)
1741	free (m->tmpname);
1742	m->tmpname = NULL;
1743	/* It's going to be saved anew anyway */
1744	}
1745
1746	/* Below here is stuff common to both first time loaded maps and
1747	* temp maps.
1748	*/
1749
1750	decay_objects (m); /* start the decay */
1751	/* In case other objects press some buttons down */
1752	update_buttons (m);
1753	if (m->outdoor)
1754	set_darkness_map (m);
1755	/* run the weather over this map */
1756	weather_effect (name);
1757	return m;
1758	}	929	}
1759
1760		930
1761	/*	931	/*
1762	* This routine is supposed to find out the difficulty of the map.	932	* This routine is supposed to find out the difficulty of the map.
1763	* difficulty does not have a lot to do with character level,	933	* difficulty does not have a lot to do with character level,
1764	* but does have a lot to do with treasure on the map.	934	* but does have a lot to do with treasure on the map.
1765	*	935	*
1766	* Difficulty can now be set by the map creature. If the value stored	936	* Difficulty can now be set by the map creator. If the value stored
1767	* in the map is zero, then use this routine. Maps should really	937	* in the map is zero, then use this routine. Maps should really
1768	* have a difficulty set than using this function - human calculation	938	* have a difficulty set rather than using this function - human calculation
1769	* is much better than this functions guesswork.	939	* is much better than this function's guesswork.
1770	*/	940	*/
1771
1772	int	941	int
1773	calculate_difficulty (maptile *m)	942	maptile::estimate_difficulty () const
1774	{	943	{
1775	object *op;
1776	archetype *at;
1777	int x, y, i;
1778	long monster_cnt = 0;	944	long monster_cnt = 0;
1779	double avgexp = 0;	945	double avgexp = 0;
1780	sint64 total_exp = 0;	946	sint64 total_exp = 0;
1781		947
1782	if (MAP_DIFFICULTY (m))	948	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1783	{	949	for (object *op = ms->bot; op; op = op->above)
1784	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1785	return MAP_DIFFICULTY (m);
1786	}
1787
1788	for (x = 0; x < MAP_WIDTH (m); x++)
1789	for (y = 0; y < MAP_HEIGHT (m); y++)
1790	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1791	{	950	{
1792	if (QUERY_FLAG (op, FLAG_MONSTER))	951	if (op->flag [FLAG_MONSTER])
1793	{	952	{
1794	total_exp += op->stats.exp;	953	total_exp += op->stats.exp;
1795	monster_cnt++;	954	monster_cnt++;
1796	}	955	}
1797		956
1798	if (QUERY_FLAG (op, FLAG_GENERATOR))	957	if (op->flag [FLAG_GENERATOR])
1799	{	958	{
1800	total_exp += op->stats.exp;	959	total_exp += op->stats.exp;
1801	at = type_to_archetype (GENERATE_TYPE (op));
1802		960
1803	if (at != NULL)	961	if (archetype *at = op->other_arch)
		962	{
1804	total_exp += at->clone.stats.exp * 8;	963	total_exp += at->stats.exp * 8;
1805
1806	monster_cnt++;	964	monster_cnt++;
1807	}	965	}
		966
		967	for (object *inv = op->inv; inv; inv = inv->below)
		968	{
		969	total_exp += op->stats.exp * 8;
		970	monster_cnt++;
		971	}
1808	}	972	}
		973	}
1809		974
1810	avgexp = (double) total_exp / monster_cnt;	975	avgexp = (double) total_exp / monster_cnt;
1811		976
1812	for (i = 1; i <= settings.max_level; i++)	977	for (int i = 1; i <= settings.max_level; i++)
1813	{
1814	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	978	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1815	{
1816	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1817	return i;	979	return i;
1818	}
1819	}
1820		980
1821	return 1;	981	return 1;
1822	}
1823
1824	void
1825	clean_tmp_map (maptile *m)
1826	{
1827	if (m->tmpname == NULL)
1828	return;
1829	INVOKE_MAP (CLEAN, m);
1830	(void) unlink (m->tmpname);
1831	}
1832
1833	void
1834	free_all_maps (void)
1835	{
1836	int real_maps = 0;
1837
1838	while (first_map)
1839	{
1840	/* I think some of the callers above before it gets here set this to be
1841	* saving, but we still want to free this data
1842	*/
1843	if (first_map->in_memory == MAP_SAVING)
1844	first_map->in_memory = MAP_IN_MEMORY;
1845	delete_map (first_map);
1846	real_maps++;
1847	}
1848	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1849	}	982	}
1850		983
1851	/* change_map_light() - used to change map light level (darkness)	984	/* change_map_light() - used to change map light level (darkness)
1852	* up or down. Returns true if successful. It should now be	985	* up or down. Returns true if successful. It should now be
1853	* possible to change a value by more than 1.	986	* possible to change a value by more than 1.
1854	* Move this from los.c to map.c since this is more related	987	* Move this from los.c to map.c since this is more related
1855	* to maps than los.	988	* to maps than los.
1856	* postive values make it darker, negative make it brighter	989	* postive values make it darker, negative make it brighter
1857	*/	990	*/
1858
1859	int	991	int
1860	change_map_light (maptile *m, int change)	992	maptile::change_map_light (int change)
1861	{	993	{
1862	int new_level = m->darkness + change;
1863
1864	/* Nothing to do */	994	/* Nothing to do */
1865	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	995	if (!change)
1866	{
1867	return 0;	996	return 0;
1868	}
1869		997
1870	/* inform all players on the map */	998	/* inform all players on the map */
1871	if (change > 0)	999	if (change > 0)
1872	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	1000	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1873	else	1001	else
1874	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	1002	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1875		1003
1876	/* Do extra checking. since m->darkness is a unsigned value,	1004	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1877	* we need to be extra careful about negative values.
1878	* In general, the checks below are only needed if change
1879	* is not +/-1
1880	*/
1881	if (new_level < 0)
1882	m->darkness = 0;
1883	else if (new_level >= MAX_DARKNESS)
1884	m->darkness = MAX_DARKNESS;
1885	else
1886	m->darkness = new_level;
1887		1005
1888	/* All clients need to get re-updated for the change */	1006	/* All clients need to get re-updated for the change */
1889	update_all_map_los (m);	1007	update_all_map_los (this);
		1008
1890	return 1;	1009	return 1;
1891	}	1010	}
1892
1893		1011
1894	/*	1012	/*
1895	* This function updates various attributes about a specific space	1013	* This function updates various attributes about a specific space
1896	* on the map (what it looks like, whether it blocks magic,	1014	* on the map (what it looks like, whether it blocks magic,
1897	* has a living creatures, prevents people from passing	1015	* has a living creatures, prevents people from passing
1898	* through, etc)	1016	* through, etc)
1899	*/	1017	*/
1900	void	1018	void
1901	update_position (maptile *m, int x, int y)	1019	mapspace::update_ ()
1902	{	1020	{
1903	object *tmp, *last = NULL;	1021	object *last = 0;
1904	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1022	uint8 flags = P_UPTODATE;
1905	New_Face *top, *floor, *middle;	1023	sint8 light = 0;
1906	object *top_obj, *floor_obj, *middle_obj;
1907	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1024	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1025	uint64_t volume = 0;
		1026	uint32_t items = 0;
		1027	object *anywhere = 0;
		1028	uint8_t middle_visibility = 0;
1908		1029
1909	oldflags = GET_MAP_FLAGS (m, x, y);	1030	//object *middle = 0;
1910	if (!(oldflags & P_NEED_UPDATE))	1031	//object *top = 0;
1911	{	1032	//object *floor = 0;
1912	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);	1033	// this seems to generate better code than using locals, above
1913	return;	1034	object *&top = faces_obj[0] = 0;
		1035	object *&middle = faces_obj[1] = 0;
		1036	object *&floor = faces_obj[2] = 0;
		1037
		1038	object::flags_t allflags; // all flags of all objects or'ed together
		1039
		1040	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1914	}	1041	{
1915		1042	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1916	middle = blank_face;
1917	top = blank_face;
1918	floor = blank_face;
1919
1920	middle_obj = NULL;
1921	top_obj = NULL;
1922	floor_obj = NULL;
1923
1924	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)
1925	{
1926
1927	/* This could be made additive I guess (two lights better than
1928	* one). But if so, it shouldn't be a simple additive - 2
1929	* light bulbs do not illuminate twice as far as once since
1930	* it is a disapation factor that is squared (or is it cubed?)
1931	*/
1932	if (tmp->glow_radius > light)
1933	light = tmp->glow_radius;	1043	light += tmp->glow_radius;
1934		1044
1935	/* This call is needed in order to update objects the player	1045	/* This call is needed in order to update objects the player
1936	* is standing in that have animations (ie, grass, fire, etc).	1046	* is standing in that have animations (ie, grass, fire, etc).
1937	* However, it also causes the look window to be re-drawn	1047	* However, it also causes the look window to be re-drawn
1938	* 3 times each time the player moves, because many of the	1048	* 3 times each time the player moves, because many of the
1939	* functions the move_player calls eventualy call this.	1049	* functions the move_player calls eventualy call this.
1940	*	1050	*
1941	* Always put the player down for drawing.	1051	* Always put the player down for drawing.
1942	*/	1052	*/
1943	if (!tmp->invisible)	1053	if (expect_true (!tmp->invisible))
1944	{	1054	{
1945	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1055	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1946	{
1947	top = tmp->face;
1948	top_obj = tmp;	1056	top = tmp;
1949	}	1057	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1950	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1951	{	1058	{
1952	/* If we got a floor, that means middle and top were below it,	1059	/* If we got a floor, that means middle and top were below it,
1953	* so should not be visible, so we clear them.	1060	* so should not be visible, so we clear them.
1954	*/	1061	*/
1955	middle = blank_face;	1062	middle = 0;
1956	top = blank_face;	1063	top = 0;
1957	floor = tmp->face;
1958	floor_obj = tmp;	1064	floor = tmp;
		1065	volume = 0;
		1066	items = 0;
1959	}	1067	}
1960	/* Flag anywhere have high priority */	1068	else
1961	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1962	{	1069	{
1963	middle = tmp->face;	1070	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1071	{
		1072	++items;
		1073	volume += tmp->volume ();
		1074	}
1964		1075
1965	middle_obj = tmp;	1076	/* Flag anywhere have high priority */
		1077	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
1966	anywhere = 1;	1078	anywhere = tmp;
1967	}	1079
1968	/* Find the highest visible face around. If equal	1080	/* Find the highest visible face around. If equal
1969	* visibilities, we still want the one nearer to the	1081	* visibilities, we still want the one nearer to the
1970	* top	1082	* top
1971	*/	1083	*/
1972	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1084	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
1973	{	1085	{
1974	middle = tmp->face;	1086	middle_visibility = ::faces [tmp->face].visibility;
1975	middle_obj = tmp;	1087	middle = tmp;
		1088	}
1976	}	1089	}
1977	}	1090	}
1978	if (tmp == tmp->above)
1979	{
1980	LOG (llevError, "Error in structure of map\n");
1981	exit (-1);
1982	}
1983		1091
1984	move_slow |= tmp->move_slow;	1092	move_slow |= tmp->move_slow;
1985	move_block |= tmp->move_block;	1093	move_block |= tmp->move_block;
1986	move_on |= tmp->move_on;	1094	move_on |= tmp->move_on;
1987	move_off |= tmp->move_off;	1095	move_off |= tmp->move_off;
1988	move_allow |= tmp->move_allow;	1096	move_allow |= tmp->move_allow;
1989		1097
1990	if (QUERY_FLAG (tmp, FLAG_ALIVE))	1098	allflags |= tmp->flag;
1991	flags |= P_IS_ALIVE;	1099
1992	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))	1100	if (tmp->type == PLAYER) flags |= P_PLAYER;
1993	flags |= P_NO_MAGIC;
1994	if (QUERY_FLAG (tmp, FLAG_DAMNED))
1995	flags |= P_NO_CLERIC;
1996	if (tmp->type == SAFE_GROUND)	1101	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1997	flags |= P_SAFE;
1998
1999	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))
2000	flags |= P_BLOCKSVIEW;
2001	} /* for stack of objects */
2002
2003	/* we don't want to rely on this function to have accurate flags, but
2004	* since we're already doing the work, we calculate them here.
2005	* if they don't match, logic is broken someplace.
2006	*/
2007	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2008	{	1102	}
2009	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1103
2010	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1104	// FLAG_SEE_ANYWHERE takes precedence
2011	}	1105	if (anywhere)
2012	SET_MAP_FLAGS (m, x, y, flags);	1106	middle = anywhere;
2013	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1107
2014	SET_MAP_MOVE_ON (m, x, y, move_on);	1108	// ORing all flags together and checking them here is much faster
2015	SET_MAP_MOVE_OFF (m, x, y, move_off);	1109	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
2016	SET_MAP_MOVE_SLOW (m, x, y, move_slow);	1110	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1111	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1112	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1113
		1114	this->light = min (light, MAX_LIGHT_RADIUS);
		1115	this->flags_ = flags;
		1116	this->move_block = move_block & ~move_allow;
		1117	this->move_on = move_on;
		1118	this->move_off = move_off;
		1119	this->move_slow = move_slow;
		1120	this->volume_ = (volume + 1023) / 1024;
		1121	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
2017		1122
2018	/* At this point, we have a floor face (if there is a floor),	1123	/* At this point, we have a floor face (if there is a floor),
2019	* and the floor is set - we are not going to touch it at	1124	* and the floor is set - we are not going to touch it at
2020	* this point.	1125	* this point.
2021	* middle contains the highest visibility face.	1126	* middle contains the highest visibility face.
…		…
2028	* middle face. This should not happen, as we already have the	1133	* middle face. This should not happen, as we already have the
2029	* else statement above so middle should not get set. OTOH, it	1134	* else statement above so middle should not get set. OTOH, it
2030	* may be possible for the faces to match but be different objects.	1135	* may be possible for the faces to match but be different objects.
2031	*/	1136	*/
2032	if (top == middle)	1137	if (top == middle)
2033	middle = blank_face;	1138	middle = 0;
2034		1139
2035	/* There are three posibilities at this point:	1140	/* There are three posibilities at this point:
2036	* 1) top face is set, need middle to be set.	1141	* 1) top face is set, need middle to be set.
2037	* 2) middle is set, need to set top.	1142	* 2) middle is set, need to set top.
2038	* 3) neither middle or top is set - need to set both.	1143	* 3) neither middle or top is set - need to set both.
2039	*/	1144	*/
2040		1145
2041	for (tmp = last; tmp; tmp = tmp->below)	1146	for (object *tmp = last; tmp; tmp = tmp->below)
2042	{	1147	{
2043	/* Once we get to a floor, stop, since we already have a floor object */	1148	/* Once we get to a floor, stop, since we already have a floor object */
2044	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1149	if (tmp->flag [FLAG_IS_FLOOR])
2045	break;	1150	break;
2046		1151
2047	/* If two top faces are already set, quit processing */	1152	/* If two top faces are already set, quit processing */
2048	if ((top != blank_face) && (middle != blank_face))	1153	if (top && middle)
2049	break;	1154	break;
2050		1155
2051	/* Only show visible faces, unless its the editor - show all */	1156	/* Only show visible faces */
2052	if (!tmp->invisible || editor)	1157	if (!tmp->invisible)
2053	{	1158	{
2054	/* Fill in top if needed */	1159	/* Fill in top if needed */
2055	if (top == blank_face)	1160	if (!top)
2056	{	1161	{
2057	top = tmp->face;
2058	top_obj = tmp;	1162	top = tmp;
2059	if (top == middle)	1163	if (top == middle)
2060	middle = blank_face;	1164	middle = 0;
2061	}	1165	}
2062	else	1166	else
2063	{	1167	{
2064	/* top is already set - we should only get here if	1168	/* top is already set - we should only get here if
2065	* middle is not set	1169	* middle is not set
2066	*	1170	*
2067	* Set the middle face and break out, since there is nothing	1171	* Set the middle face and break out, since there is nothing
2068	* more to fill in. We don't check visiblity here, since	1172	* more to fill in. We don't check visiblity here, since
2069	*	1173	*
2070	*/	1174	*/
2071	if (tmp->face != top)	1175	if (tmp != top)
2072	{	1176	{
2073	middle = tmp->face;
2074	middle_obj = tmp;	1177	middle = tmp;
2075	break;	1178	break;
2076	}	1179	}
2077	}	1180	}
2078	}	1181	}
2079	}	1182	}
		1183
2080	if (middle == floor)	1184	if (middle == floor)
2081	middle = blank_face;	1185	middle = 0;
		1186
2082	if (top == middle)	1187	if (top == middle)
2083	middle = blank_face;	1188	middle = 0;
2084	SET_MAP_FACE (m, x, y, top, 0);
2085	if (top != blank_face)
2086	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2087	else
2088	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2089	SET_MAP_FACE (m, x, y, middle, 1);
2090	if (middle != blank_face)
2091	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2092	else
2093	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2094	SET_MAP_FACE (m, x, y, floor, 2);
2095	if (floor != blank_face)
2096	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2097	else
2098	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2099	SET_MAP_LIGHT (m, x, y, light);
2100	}
2101		1189
2102		1190	#if 0
2103	void	1191	faces_obj [0] = top;
2104	set_map_reset_time (maptile *map)	1192	faces_obj [1] = middle;
2105	{	1193	faces_obj [2] = floor;
2106	int timeout;	1194	#endif
2107
2108	timeout = MAP_RESET_TIMEOUT (map);
2109	if (timeout <= 0)
2110	timeout = MAP_DEFAULTRESET;
2111	if (timeout >= MAP_MAXRESET)
2112	timeout = MAP_MAXRESET;
2113	MAP_WHEN_RESET (map) = time (0) + timeout;
2114	}	1195	}
2115		1196
2116	/* this updates the orig_map->tile_map[tile_num] value after loading	1197	maptile *
2117	* the map. It also takes care of linking back the freshly loaded	1198	maptile::tile_available (int dir, bool load)
2118	* maps tile_map values if it tiles back to this one. It returns
2119	* the value of orig_map->tile_map[tile_num]. It really only does this
2120	* so that it is easier for calling functions to verify success.
2121	*/
2122
2123	static maptile *
2124	load_and_link_tiled_map (maptile *orig_map, int tile_num)
2125	{	1199	{
2126	int dest_tile = (tile_num + 2) % 4;	1200	if (tile_path[dir])
2127	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);	1201	{
		1202	// map is there and we don't need to load it OR it's loaded => return what we have
		1203	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1204	return tile_map[dir];
2128		1205
2129	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1206	// well, try to locate it then, if possible - maybe it's there already
		1207	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1208	return tile_map[dir];
		1209	}
2130		1210
2131	/* need to do a strcmp here as the orig_map->path is not a shared string */	1211	return 0;
2132	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] && !strcmp (orig_map->tile_map[tile_num]->tile_path[dest_tile], orig_map->path))
2133	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2134
2135	return orig_map->tile_map[tile_num];
2136	}	1212	}
2137		1213
2138	/* this returns TRUE if the coordinates (x,y) are out of	1214	/* this returns TRUE if the coordinates (x,y) are out of
2139	* map m. This function also takes into account any	1215	* map m. This function also takes into account any
2140	* tiling considerations, loading adjacant maps as needed.	1216	* tiling considerations, loading adjacant maps as needed.
2141	* This is the function should always be used when it	1217	* This is the function should always be used when it
2142	* necessary to check for valid coordinates.	1218	* necessary to check for valid coordinates.
2143	* This function will recursively call itself for the	1219	* This function will recursively call itself for the
2144	* tiled maps.	1220	* tiled maps.
2145	*
2146	*
2147	*/	1221	*/
2148	int	1222	int
2149	out_of_map (maptile *m, int x, int y)	1223	out_of_map (maptile *m, int x, int y)
2150	{	1224	{
2151
2152	/* If we get passed a null map, this is obviously the	1225	/* If we get passed a null map, this is obviously the
2153	* case. This generally shouldn't happen, but if the	1226	* case. This generally shouldn't happen, but if the
2154	* map loads fail below, it could happen.	1227	* map loads fail below, it could happen.
2155	*/	1228	*/
2156	if (!m)	1229	if (!m)
2157	return 0;	1230	return 0;
2158		1231
2159	if (x < 0)	1232	if (x < 0)
2160	{	1233	{
2161	if (!m->tile_path[3])	1234	if (!m->tile_available (3))
2162	return 1;	1235	return 1;
2163	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1236
2164	{
2165	load_and_link_tiled_map (m, 3);
2166	}
2167	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1237	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2168	}
2169	if (x >= MAP_WIDTH (m))
2170	{	1238	}
2171	if (!m->tile_path[1])	1239
		1240	if (x >= m->width)
		1241	{
		1242	if (!m->tile_available (1))
2172	return 1;	1243	return 1;
2173	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1244
2174	{
2175	load_and_link_tiled_map (m, 1);
2176	}
2177	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1245	return out_of_map (m->tile_map[1], x - m->width, y);
2178	}	1246	}
		1247
2179	if (y < 0)	1248	if (y < 0)
2180	{	1249	{
2181	if (!m->tile_path[0])	1250	if (!m->tile_available (0))
2182	return 1;	1251	return 1;
2183	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1252
2184	{
2185	load_and_link_tiled_map (m, 0);
2186	}
2187	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1253	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2188	}
2189	if (y >= MAP_HEIGHT (m))
2190	{	1254	}
2191	if (!m->tile_path[2])	1255
		1256	if (y >= m->height)
		1257	{
		1258	if (!m->tile_available (2))
2192	return 1;	1259	return 1;
2193	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1260
2194	{
2195	load_and_link_tiled_map (m, 2);
2196	}
2197	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1261	return out_of_map (m->tile_map[2], x, y - m->height);
2198	}	1262	}
2199		1263
2200	/* Simple case - coordinates are within this local	1264	/* Simple case - coordinates are within this local
2201	* map.	1265	* map.
2202	*/	1266	*/
…		…
2205		1269
2206	/* This is basically the same as out_of_map above, but	1270	/* This is basically the same as out_of_map above, but
2207	* instead we return NULL if no map is valid (coordinates	1271	* instead we return NULL if no map is valid (coordinates
2208	* out of bounds and no tiled map), otherwise it returns	1272	* out of bounds and no tiled map), otherwise it returns
2209	* the map as that the coordinates are really on, and	1273	* the map as that the coordinates are really on, and
2210	* updates x and y to be the localized coordinates.	1274	* updates x and y to be the localised coordinates.
2211	* Using this is more efficient of calling out_of_map	1275	* Using this is more efficient of calling out_of_map
2212	* and then figuring out what the real map is	1276	* and then figuring out what the real map is
2213	*/	1277	*/
2214	maptile *	1278	maptile *
2215	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1279	maptile::xy_find (sint16 &x, sint16 &y)
2216	{	1280	{
2217
2218	if (*x < 0)	1281	if (x < 0)
2219	{	1282	{
2220	if (!m->tile_path[3])	1283	if (!tile_available (3))
2221	return NULL;	1284	return 0;
2222	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2223	load_and_link_tiled_map (m, 3);
2224		1285
2225	*x += MAP_WIDTH (m->tile_map[3]);	1286	x += tile_map[3]->width;
2226	return (get_map_from_coord (m->tile_map[3], x, y));	1287	return tile_map[3]->xy_find (x, y);
2227	}
2228	if (*x >= MAP_WIDTH (m))
2229	{	1288	}
2230	if (!m->tile_path[1])	1289
		1290	if (x >= width)
		1291	{
		1292	if (!tile_available (1))
2231	return NULL;	1293	return 0;
2232	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2233	load_and_link_tiled_map (m, 1);
2234		1294
2235	*x -= MAP_WIDTH (m);	1295	x -= width;
2236	return (get_map_from_coord (m->tile_map[1], x, y));	1296	return tile_map[1]->xy_find (x, y);
2237	}	1297	}
		1298
2238	if (*y < 0)	1299	if (y < 0)
2239	{	1300	{
2240	if (!m->tile_path[0])	1301	if (!tile_available (0))
2241	return NULL;	1302	return 0;
2242	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2243	load_and_link_tiled_map (m, 0);
2244		1303
2245	*y += MAP_HEIGHT (m->tile_map[0]);	1304	y += tile_map[0]->height;
2246	return (get_map_from_coord (m->tile_map[0], x, y));	1305	return tile_map[0]->xy_find (x, y);
2247	}
2248	if (*y >= MAP_HEIGHT (m))
2249	{	1306	}
2250	if (!m->tile_path[2])	1307
		1308	if (y >= height)
		1309	{
		1310	if (!tile_available (2))
2251	return NULL;	1311	return 0;
2252	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2253	load_and_link_tiled_map (m, 2);
2254		1312
2255	*y -= MAP_HEIGHT (m);	1313	y -= height;
2256	return (get_map_from_coord (m->tile_map[2], x, y));	1314	return tile_map[2]->xy_find (x, y);
2257	}	1315	}
2258		1316
2259	/* Simple case - coordinates are within this local	1317	/* Simple case - coordinates are within this local
2260	* map.	1318	* map.
2261	*/	1319	*/
2262
2263	return m;	1320	return this;
2264	}	1321	}
2265		1322
2266	/**	1323	/**
2267	* Return whether map2 is adjacent to map1. If so, store the distance from	1324	* Return whether map2 is adjacent to map1. If so, store the distance from
2268	* map1 to map2 in dx/dy.	1325	* map1 to map2 in dx/dy.
2269	*/	1326	*/
2270	static int	1327	int
2271	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1328	adjacent_map (maptile *map1, maptile *map2, int *dx, int *dy)
2272	{	1329	{
2273	if (!map1 || !map2)	1330	if (!map1 || !map2)
2274	return 0;	1331	return 0;
2275		1332
		1333	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1334	//fix: compare paths instead (this is likely faster, too!)
2276	if (map1 == map2)	1335	if (map1 == map2)
2277	{	1336	{
2278	*dx = 0;	1337	*dx = 0;
2279	*dy = 0;	1338	*dy = 0;
2280		1339	}
		1340	else if (map1->tile_available (TILE_NORTH, false) == map2)
2281	}	1341	{
2282	else if (map1->tile_map[0] == map2)
2283	{ /* up */
2284	*dx = 0;	1342	*dx = 0;
2285	*dy = -MAP_HEIGHT (map2);	1343	*dy = -map2->height;
		1344	}
		1345	else if (map1->tile_available (TILE_EAST , false) == map2)
2286	}	1346	{
2287	else if (map1->tile_map[1] == map2)	1347	*dx = map1->width;
2288	{ /* right */
2289	*dx = MAP_WIDTH (map1);
2290	*dy = 0;	1348	*dy = 0;
2291	}	1349	}
2292	else if (map1->tile_map[2] == map2)	1350	else if (map1->tile_available (TILE_SOUTH, false) == map2)
2293	{ /* down */	1351	{
2294	*dx = 0;	1352	*dx = 0;
2295	*dy = MAP_HEIGHT (map1);	1353	*dy = map1->height;
		1354	}
		1355	else if (map1->tile_available (TILE_WEST , false) == map2)
2296	}	1356	{
2297	else if (map1->tile_map[3] == map2)	1357	*dx = -map2->width;
2298	{ /* left */
2299	*dx = -MAP_WIDTH (map2);
2300	*dy = 0;	1358	*dy = 0;
2301
2302	}	1359	}
2303	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1360	else if (map1->tile_map[TILE_NORTH] && map1->tile_map[TILE_NORTH]->tile_available (TILE_EAST , false) == map2)
2304	{ /* up right */	1361	{ /* up right */
2305	*dx = MAP_WIDTH (map1->tile_map[0]);	1362	*dx = +map1->tile_map[TILE_NORTH]->width;
2306	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1363	*dy = -map1->tile_map[TILE_NORTH]->height;
2307	}	1364	}
2308	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1365	else if (map1->tile_map[TILE_NORTH] && map1->tile_map[TILE_NORTH]->tile_available (TILE_WEST , false) == map2)
2309	{ /* up left */	1366	{ /* up left */
2310	*dx = -MAP_WIDTH (map2);	1367	*dx = -map2->width;
2311	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1368	*dy = -map1->tile_map[TILE_NORTH]->height;
2312	}	1369	}
2313	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1370	else if (map1->tile_map[TILE_EAST ] && map1->tile_map[TILE_EAST ]->tile_available (TILE_NORTH, false) == map2)
2314	{ /* right up */	1371	{ /* right up */
2315	*dx = MAP_WIDTH (map1);	1372	*dx = +map1->width;
2316	*dy = -MAP_HEIGHT (map2);	1373	*dy = -map2->height;
2317	}	1374	}
2318	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1375	else if (map1->tile_map[TILE_EAST ] && map1->tile_map[TILE_EAST ]->tile_available (TILE_SOUTH, false) == map2)
2319	{ /* right down */	1376	{ /* right down */
2320	*dx = MAP_WIDTH (map1);	1377	*dx = +map1->width;
2321	*dy = MAP_HEIGHT (map1->tile_map[1]);	1378	*dy = +map1->tile_map[TILE_EAST]->height;
2322	}	1379	}
2323	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1380	else if (map1->tile_map[TILE_SOUTH] && map1->tile_map[TILE_SOUTH]->tile_available (TILE_EAST , false) == map2)
2324	{ /* down right */	1381	{ /* down right */
2325	*dx = MAP_WIDTH (map1->tile_map[2]);	1382	*dx = +map1->tile_map[TILE_SOUTH]->width;
2326	*dy = MAP_HEIGHT (map1);	1383	*dy = +map1->height;
2327	}	1384	}
2328	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1385	else if (map1->tile_map[TILE_SOUTH] && map1->tile_map[TILE_SOUTH]->tile_available (TILE_WEST , false) == map2)
2329	{ /* down left */	1386	{ /* down left */
2330	*dx = -MAP_WIDTH (map2);	1387	*dx = -map2->width;
2331	*dy = MAP_HEIGHT (map1);	1388	*dy = +map1->height;
2332	}	1389	}
2333	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1390	else if (map1->tile_map[TILE_WEST ] && map1->tile_map[TILE_WEST ]->tile_available (TILE_NORTH, false) == map2)
2334	{ /* left up */	1391	{ /* left up */
2335	*dx = -MAP_WIDTH (map1->tile_map[3]);	1392	*dx = -map1->tile_map[TILE_WEST]->width;
2336	*dy = -MAP_HEIGHT (map2);	1393	*dy = -map2->height;
2337	}	1394	}
2338	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1395	else if (map1->tile_map[TILE_WEST ] && map1->tile_map[TILE_WEST ]->tile_available (TILE_SOUTH, false) == map2)
2339	{ /* left down */	1396	{ /* left down */
2340	*dx = -MAP_WIDTH (map1->tile_map[3]);	1397	*dx = -map1->tile_map[TILE_WEST]->width;
2341	*dy = MAP_HEIGHT (map1->tile_map[3]);	1398	*dy = +map1->tile_map[TILE_WEST]->height;
2342
2343	}	1399	}
2344	else	1400	else
2345	{ /* not "adjacent" enough */
2346	return 0;	1401	return 0;
2347	}
2348		1402
2349	return 1;	1403	return 1;
		1404	}
		1405
		1406	maptile *
		1407	maptile::xy_load (sint16 &x, sint16 &y)
		1408	{
		1409	maptile *map = xy_find (x, y);
		1410
		1411	if (map)
		1412	map->load_sync ();
		1413
		1414	return map;
		1415	}
		1416
		1417	maptile *
		1418	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1419	{
		1420	return m->xy_load (*x, *y);
2350	}	1421	}
2351		1422
2352	/* From map.c	1423	/* From map.c
2353	* This is used by get_player to determine where the other	1424	* This is used by get_player to determine where the other
2354	* creature is. get_rangevector takes into account map tiling,	1425	* creature is. get_rangevector takes into account map tiling,
2355	* so you just can not look the the map coordinates and get the	1426	* so you just can not look the the map coordinates and get the
2356	* righte value. distance_x/y are distance away, which	1427	* righte value. distance_x/y are distance away, which
2357	* can be negativbe. direction is the crossfire direction scheme	1428	* can be negative. direction is the crossfire direction scheme
2358	* that the creature should head. part is the part of the	1429	* that the creature should head. part is the part of the
2359	* monster that is closest.	1430	* monster that is closest.
2360	*	1431	*
2361	* get_rangevector looks at op1 and op2, and fills in the	1432	* get_rangevector looks at op1 and op2, and fills in the
2362	* structure for op1 to get to op2.	1433	* structure for op1 to get to op2.
…		…
2367	* be unexpected	1438	* be unexpected
2368	*	1439	*
2369	* currently, the only flag supported (0x1) is don't translate for	1440	* currently, the only flag supported (0x1) is don't translate for
2370	* closest body part of 'op1'	1441	* closest body part of 'op1'
2371	*/	1442	*/
2372
2373	void	1443	void
2374	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1444	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
2375	{	1445	{
2376	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1446	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2377	{	1447	{
2378	/* be conservative and fill in _some_ data */	1448	/* be conservative and fill in _some_ data */
2379	retval->distance = 100000;	1449	retval->distance = 10000;
2380	retval->distance_x = 32767;	1450	retval->distance_x = 10000;
2381	retval->distance_y = 32767;	1451	retval->distance_y = 10000;
2382	retval->direction = 0;	1452	retval->direction = 0;
2383	retval->part = 0;	1453	retval->part = 0;
2384	}	1454	}
2385	else	1455	else
2386	{	1456	{
2387	object *best;
2388
2389	retval->distance_x += op2->x - op1->x;	1457	retval->distance_x += op2->x - op1->x;
2390	retval->distance_y += op2->y - op1->y;	1458	retval->distance_y += op2->y - op1->y;
2391		1459
2392	best = op1;	1460	object *best = op1;
		1461
2393	/* If this is multipart, find the closest part now */	1462	/* If this is multipart, find the closest part now */
2394	if (!(flags & 0x1) && op1->more)	1463	if (!(flags & 1) && op1->more)
2395	{	1464	{
2396	object *tmp;	1465	int best_distance = idistance (retval->distance_x, retval->distance_y);
2397	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2398		1466
2399	/* we just take the offset of the piece to head to figure	1467	/* we just take the offset of the piece to head to figure
2400	* distance instead of doing all that work above again	1468	* distance instead of doing all that work above again
2401	* since the distance fields we set above are positive in the	1469	* since the distance fields we set above are positive in the
2402	* same axis as is used for multipart objects, the simply arithmetic	1470	* same axis as is used for multipart objects, the simply arithmetic
2403	* below works.	1471	* below works.
2404	*/	1472	*/
2405	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1473	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2406	{	1474	{
2407	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1475	int tmpi = idistance (op1->x - tmp->x + retval->distance_x, op1->y - tmp->y + retval->distance_y);
2408	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1476
2409	if (tmpi < best_distance)	1477	if (tmpi < best_distance)
2410	{	1478	{
2411	best_distance = tmpi;	1479	best_distance = tmpi;
2412	best = tmp;	1480	best = tmp;
2413	}	1481	}
2414	}	1482	}
		1483
2415	if (best != op1)	1484	if (best != op1)
2416	{	1485	{
2417	retval->distance_x += op1->x - best->x;	1486	retval->distance_x += op1->x - best->x;
2418	retval->distance_y += op1->y - best->y;	1487	retval->distance_y += op1->y - best->y;
2419	}	1488	}
2420	}	1489	}
		1490
2421	retval->part = best;	1491	retval->part = best;
2422	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1492	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2423	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1493	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
2424	}	1494	}
2425	}	1495	}
2426		1496
2427	/* this is basically the same as get_rangevector above, but instead of	1497	/* this is basically the same as get_rangevector above, but instead of
2428	* the first parameter being an object, it instead is the map	1498	* the first parameter being an object, it instead is the map
…		…
2432	* flags has no meaning for this function at this time - I kept it in to	1502	* flags has no meaning for this function at this time - I kept it in to
2433	* be more consistant with the above function and also in case they are needed	1503	* be more consistant with the above function and also in case they are needed
2434	* for something in the future. Also, since no object is pasted, the best	1504	* for something in the future. Also, since no object is pasted, the best
2435	* field of the rv_vector is set to NULL.	1505	* field of the rv_vector is set to NULL.
2436	*/	1506	*/
2437
2438	void	1507	void
2439	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1508	get_rangevector_from_mapcoord (maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2440	{	1509	{
2441	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1510	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2442	{	1511	{
2443	/* be conservative and fill in _some_ data */	1512	/* be conservative and fill in _some_ data */
2444	retval->distance = 100000;	1513	retval->distance = 100000;
2445	retval->distance_x = 32767;	1514	retval->distance_x = 32767;
2446	retval->distance_y = 32767;	1515	retval->distance_y = 32767;
2447	retval->direction = 0;	1516	retval->direction = 0;
2448	retval->part = 0;	1517	retval->part = 0;
2449	}	1518	}
2450	else	1519	else
2451	{	1520	{
2452	retval->distance_x += op2->x - x;	1521	retval->distance_x += op2->x - x;
2453	retval->distance_y += op2->y - y;	1522	retval->distance_y += op2->y - y;
2454		1523
2455	retval->part = NULL;	1524	retval->part = 0;
2456	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1525	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2457	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1526	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
2458	}	1527	}
2459	}	1528	}
2460		1529
2461	/* Returns true of op1 and op2 are effectively on the same map	1530	/* Returns true of op1 and op2 are effectively on the same map
2462	* (as related to map tiling). Note that this looks for a path from	1531	* (as related to map tiling). Note that this looks for a path from
2463	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1532	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2464	* to op1, this will still return false.	1533	* to op1, this will still return false.
2465	* Note we only look one map out to keep the processing simple	1534	* Note we only look one map out to keep the processing simple
2466	* and efficient. This could probably be a macro.	1535	* and efficient. This could probably be a macro.
2467	* MSW 2001-08-05	1536	* MSW 2001-08-05
2468	*/	1537	*/
…		…
2471	{	1540	{
2472	int dx, dy;	1541	int dx, dy;
2473		1542
2474	return adjacent_map (op1->map, op2->map, &dx, &dy);	1543	return adjacent_map (op1->map, op2->map, &dx, &dy);
2475	}	1544	}
		1545
		1546	//-GPL
		1547
		1548	object *
		1549	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1550	{
		1551	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1552	}
		1553
		1554	region *
		1555	maptile::region (int x, int y) const
		1556	{
		1557	if (regions
		1558	&& regionmap
		1559	&& !OUT_OF_REAL_MAP (this, x, y))
		1560	if (struct region *reg = regionmap [regions [y * width + x]])
		1561	return reg;
		1562
		1563	if (default_region)
		1564	return default_region;
		1565
		1566	return ::region::default_region ();
		1567	}
		1568
		1569	//+GPL
		1570
		1571	/* picks a random object from a style map.
		1572	*/
		1573	object *
		1574	maptile::pick_random_object (rand_gen &gen) const
		1575	{
		1576	/* while returning a null object will result in a crash, that
		1577	* is actually preferable to an infinite loop. That is because
		1578	* most servers will automatically restart in case of crash.
		1579	* Change the logic on getting the random space - shouldn't make
		1580	* any difference, but this seems clearer to me.
		1581	*/
		1582	for (int i = 1000; --i;)
		1583	{
		1584	object *pick = at (gen (width), gen (height)).bot;
		1585
		1586	// must be head: do not prefer big monsters just because they are big.
		1587	if (pick && pick->is_head ())
		1588	return pick;
		1589	}
		1590
		1591	// instead of crashing in the unlikely(?) case, try to return *something*
		1592	return archetype::find (shstr_bug);
		1593	}
		1594
		1595	//-GPL
		1596
		1597	void
		1598	maptile::play_sound (faceidx sound, int x, int y) const
		1599	{
		1600	if (!sound)
		1601	return;
		1602
		1603	for_all_players_on_map (pl, this)
		1604	if (client *ns = pl->ns)
		1605	{
		1606	int dx = x - pl->ob->x;
		1607	int dy = y - pl->ob->y;
		1608
		1609	int distance = idistance (dx, dy);
		1610
		1611	if (distance <= MAX_SOUND_DISTANCE)
		1612	ns->play_sound (sound, dx, dy);
		1613	}
		1614	}
		1615
		1616	void
		1617	maptile::say_msg (const char *msg, int x, int y) const
		1618	{
		1619	for_all_players (pl)
		1620	if (client *ns = pl->ns)
		1621	{
		1622	int dx = x - pl->ob->x;
		1623	int dy = y - pl->ob->y;
		1624
		1625	int distance = idistance (dx, dy);
		1626
		1627	if (distance <= MAX_SOUND_DISTANCE)
		1628	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1629	}
		1630	}
		1631
		1632	dynbuf mapwalk_buf (sizeof (maprect) * 25, sizeof (maprect) * 25);
		1633
		1634	static void
		1635	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1636	{
		1637	// clip to map to the left
		1638	if (x0 < 0)
		1639	{
		1640	if (maptile *tile = m->tile_available (TILE_WEST, 1))
		1641	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1642
		1643	if (x1 < 0) // entirely to the left
		1644	return;
		1645
		1646	x0 = 0;
		1647	}
		1648
		1649	// clip to map to the right
		1650	if (x1 > m->width)
		1651	{
		1652	if (maptile *tile = m->tile_available (TILE_EAST, 1))
		1653	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1654
		1655	if (x0 > m->width) // entirely to the right
		1656	return;
		1657
		1658	x1 = m->width;
		1659	}
		1660
		1661	// clip to map above
		1662	if (y0 < 0)
		1663	{
		1664	if (maptile *tile = m->tile_available (TILE_NORTH, 1))
		1665	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1666
		1667	if (y1 < 0) // entirely above
		1668	return;
		1669
		1670	y0 = 0;
		1671	}
		1672
		1673	// clip to map below
		1674	if (y1 > m->height)
		1675	{
		1676	if (maptile *tile = m->tile_available (TILE_SOUTH, 1))
		1677	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1678
		1679	if (y0 > m->height) // entirely below
		1680	return;
		1681
		1682	y1 = m->height;
		1683	}
		1684
		1685	// if we get here, the rect is within the current map
		1686	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1687
		1688	r->m = m;
		1689	r->x0 = x0;
		1690	r->y0 = y0;
		1691	r->x1 = x1;
		1692	r->y1 = y1;
		1693	r->dx = dx;
		1694	r->dy = dy;
		1695	}
		1696
		1697	maprect *
		1698	maptile::split_to_tiles (dynbuf &buf, int x0, int y0, int x1, int y1)
		1699	{
		1700	buf.clear ();
		1701
		1702	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1703
		1704	// add end marker
		1705	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1706	r->m = 0;
		1707
		1708	return (maprect *)buf.linearise ();
		1709	}
		1710

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