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Comparing deliantra/server/common/map.C (file contents):
Revision 1.32 by root, Thu Oct 5 16:50:06 2006 UTC vs.
Revision 1.177 by root, Wed Nov 11 23:27:56 2009 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001-2003 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
8	it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
9	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
10	(at your option) any later version.	11	* option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
18	along with this program; if not, write to the Free Software	19	* and the GNU General Public License along with this program. If not, see
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
20		21	*
21	The authors can be reached via e-mail at <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24
25	#include <global.h>
26	#include <funcpoint.h>
27
28	#include <loader.h>
29	#ifndef WIN32 /* ---win32 exclude header */
30	# include <unistd.h>	25	#include <unistd.h>
31	#endif /* win32 */
32		26
		27	#include "global.h"
		28	#include "loader.h"
33	#include "path.h"	29	#include "path.h"
34		30
		31	//+GPL
35		32
36	extern int nrofallocobjects, nroffreeobjects;	33	sint8 maptile::outdoor_darkness;
37
38	/*
39	* Returns the maptile which has a name matching the given argument.
40	* return NULL if no match is found.
41	*/
42
43	maptile *
44	has_been_loaded (const char *name)
45	{
46	maptile *map;
47
48	if (!name || !*name)
49	return 0;
50	for (map = first_map; map; map = map->next)
51	if (!strcmp (name, map->path))
52	break;
53	return (map);
54	}
55
56	/*
57	* This makes a path absolute outside the world of Crossfire.
58	* In other words, it prepends LIBDIR/MAPDIR/ to the given path
59	* and returns the pointer to a static array containing the result.
60	* it really should be called create_mapname
61	*/
62
63	const char *
64	create_pathname (const char *name)
65	{
66	static char buf[MAX_BUF];
67
68	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
69	* someplace else in the code? msw 2-17-97
70	*/
71	if (*name == '/')
72	sprintf (buf, "%s/%s%s", settings.datadir, settings.mapdir, name);
73	else
74	sprintf (buf, "%s/%s/%s", settings.datadir, settings.mapdir, name);
75	return (buf);
76	}
77
78	/*
79	* same as create_pathname, but for the overlay maps.
80	*/
81
82	const char *
83	create_overlay_pathname (const char *name)
84	{
85	static char buf[MAX_BUF];
86
87	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
88	* someplace else in the code? msw 2-17-97
89	*/
90	if (*name == '/')
91	sprintf (buf, "%s/%s%s", settings.localdir, settings.mapdir, name);
92	else
93	sprintf (buf, "%s/%s/%s", settings.localdir, settings.mapdir, name);
94	return (buf);
95	}
96
97	/*
98	* same as create_pathname, but for the template maps.
99	*/
100
101	const char *
102	create_template_pathname (const char *name)
103	{
104	static char buf[MAX_BUF];
105
106	/* Why? having extra / doesn't confuse unix anyplace? Dependancies
107	* someplace else in the code? msw 2-17-97
108	*/
109	if (*name == '/')
110	sprintf (buf, "%s/%s%s", settings.localdir, settings.templatedir, name);
111	else
112	sprintf (buf, "%s/%s/%s", settings.localdir, settings.templatedir, name);
113	return (buf);
114	}
115
116	/*
117	* This makes absolute path to the itemfile where unique objects
118	* will be saved. Converts '/' to '@'. I think it's essier maintain
119	* files than full directory structure, but if this is problem it can
120	* be changed.
121	*/
122	static const char *
123	create_items_path (const char *s)
124	{
125	static char buf[MAX_BUF];
126	char *t;
127
128	if (*s == '/')
129	s++;
130
131	sprintf (buf, "%s/%s/", settings.localdir, settings.uniquedir);
132
133	for (t = buf + strlen (buf); *s; s++, t++)
134	if (*s == '/')
135	*t = '@';
136	else
137	*t = *s;
138	*t = 0;
139	return (buf);
140	}
141
142
143	/*
144	* This function checks if a file with the given path exists.
145	* -1 is returned if it fails, otherwise the mode of the file
146	* is returned.
147	* It tries out all the compression suffixes listed in the uncomp[] array.
148	*
149	* If prepend_dir is set, then we call create_pathname (which prepends
150	* libdir & mapdir). Otherwise, we assume the name given is fully
151	* complete.
152	* Only the editor actually cares about the writablity of this -
153	* the rest of the code only cares that the file is readable.
154	* when the editor goes away, the call to stat should probably be
155	* replaced by an access instead (similar to the windows one, but
156	* that seems to be missing the prepend_dir processing
157	*/
158
159	int
160	check_path (const char *name, int prepend_dir)
161	{
162	char buf[MAX_BUF];
163
164	#ifndef WIN32
165	char *endbuf;
166	struct stat statbuf;
167	int mode = 0;
168	#endif
169
170	if (prepend_dir)
171	strcpy (buf, create_pathname (name));
172	else
173	strcpy (buf, name);
174	#ifdef WIN32 /* ***win32: check this sucker in windows style. */
175	return (_access (buf, 0));
176	#else
177
178	/* old method (strchr(buf, '\0')) seemd very odd to me -
179	* this method should be equivalant and is clearer.
180	* Can not use strcat because we need to cycle through
181	* all the names.
182	*/
183	endbuf = buf + strlen (buf);
184
185	if (stat (buf, &statbuf))
186	return -1;
187	if (!S_ISREG (statbuf.st_mode))
188	return (-1);
189
190	if (((statbuf.st_mode & S_IRGRP) && getegid () == statbuf.st_gid) ||
191	((statbuf.st_mode & S_IRUSR) && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IROTH))
192	mode |= 4;
193
194	if ((statbuf.st_mode & S_IWGRP && getegid () == statbuf.st_gid) ||
195	(statbuf.st_mode & S_IWUSR && geteuid () == statbuf.st_uid) || (statbuf.st_mode & S_IWOTH))
196	mode |= 2;
197
198	return (mode);
199	#endif
200	}
201
202	/*
203	* Prints out debug-information about a map.
204	* Dumping these at llevError doesn't seem right, but is
205	* necessary to make sure the information is in fact logged.
206	*/
207
208	void
209	dump_map (const maptile *m)
210	{
211	LOG (llevError, "Map %s status: %d.\n", m->path, m->in_memory);
212	LOG (llevError, "Size: %dx%d Start: %d,%d\n", MAP_WIDTH (m), MAP_HEIGHT (m), MAP_ENTER_X (m), MAP_ENTER_Y (m));
213
214	if (m->msg != NULL)
215	LOG (llevError, "Message:\n%s", m->msg);
216
217	if (m->maplore != NULL)
218	LOG (llevError, "Lore:\n%s", m->maplore);
219
220	if (m->tmpname != NULL)
221	LOG (llevError, "Tmpname: %s\n", m->tmpname);
222
223	LOG (llevError, "Difficulty: %d\n", m->difficulty);
224	LOG (llevError, "Darkness: %d\n", m->darkness);
225	}
226
227	/*
228	* Prints out debug-information about all maps.
229	* This basically just goes through all the maps and calls
230	* dump_map on each one.
231	*/
232
233	void
234	dump_all_maps (void)
235	{
236	maptile *m;
237
238	for (m = first_map; m != NULL; m = m->next)
239	{
240	dump_map (m);
241	}
242	}
243		34
244	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	35	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
245	* one function that just returns a P_.. value (see map.h)	36	* one function that just returns a P_.. value (see map.h)
246	* it will also do map translation for tiled maps, returning	37	* it will also do map translation for tiled maps, returning
247	* new values into newmap, nx, and ny. Any and all of those	38	* new values into newmap, nx, and ny. Any and all of those
…		…
250	* is needed. The case of not passing values is if we're just	41	* is needed. The case of not passing values is if we're just
251	* checking for the existence of something on those spaces, but	42	* checking for the existence of something on those spaces, but
252	* don't expect to insert/remove anything from those spaces.	43	* don't expect to insert/remove anything from those spaces.
253	*/	44	*/
254	int	45	int
255	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 * nx, sint16 * ny)	46	get_map_flags (maptile *oldmap, maptile **newmap, sint16 x, sint16 y, sint16 *nx, sint16 *ny)
256	{	47	{
257	sint16 newx, newy;	48	sint16 newx = x;
258	int retval = 0;	49	sint16 newy = y;
259	maptile *mp;
260		50
261	if (out_of_map (oldmap, x, y))	51	maptile *mp = get_map_from_coord (oldmap, &newx, &newy);
		52
		53	if (!mp)
262	return P_OUT_OF_MAP;	54	return P_OUT_OF_MAP;
263	newx = x;
264	newy = y;
265	mp = get_map_from_coord (oldmap, &newx, &newy);
266	if (mp != oldmap)
267	retval |= P_NEW_MAP;
268	if (newmap)
269	*newmap = mp;
270	if (nx)
271	*nx = newx;
272	if (ny)
273	*ny = newy;
274		55
275	retval |= mp->spaces[newx + mp->width * newy].flags;	56	if (newmap) *newmap = mp;
		57	if (nx) *nx = newx;
		58	if (ny) *ny = newy;
276		59
277	return retval;	60	return mp->at (newx, newy).flags () | (mp != oldmap ? P_NEW_MAP : 0);
278	}	61	}
279		62
280	/*	63	/*
281	* Returns true if the given coordinate is blocked except by the	64	* Returns true if the given coordinate is blocked except by the
282	* object passed is not blocking. This is used with	65	* object passed is not blocking. This is used with
…		…
290	* by the caller.	73	* by the caller.
291	*/	74	*/
292	int	75	int
293	blocked_link (object *ob, maptile *m, int sx, int sy)	76	blocked_link (object *ob, maptile *m, int sx, int sy)
294	{	77	{
295	object *tmp;
296	int mflags, blocked;
297
298	/* Make sure the coordinates are valid - they should be, as caller should	78	/* Make sure the coordinates are valid - they should be, as caller should
299	* have already checked this.	79	* have already checked this.
300	*/	80	*/
301	if (OUT_OF_REAL_MAP (m, sx, sy))	81	if (OUT_OF_REAL_MAP (m, sx, sy))
302	{	82	{
303	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");	83	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");
304	return 1;	84	return 1;
305	}	85	}
306		86
307	/* Save some cycles - instead of calling get_map_flags(), just get the value	87	mapspace &ms = m->at (sx, sy);
308	* directly.
309	*/
310	mflags = m->spaces[sx + m->width * sy].flags;
311		88
312	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	89	int mflags = ms.flags ();
		90	int blocked = ms.move_block;
313		91
314	/* If space is currently not blocked by anything, no need to	92	/* If space is currently not blocked by anything, no need to
315	* go further. Not true for players - all sorts of special	93	* go further. Not true for players - all sorts of special
316	* things we need to do for players.	94	* things we need to do for players.
317	*/	95	*/
318	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	96	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))
319	return 0;	97	return 0;
320		98
321	/* if there isn't anytyhing alive on this space, and this space isn't	99	/* if there isn't anything alive on this space, and this space isn't
322	* otherwise blocked, we can return now. Only if there is a living	100	* otherwise blocked, we can return now. Only if there is a living
323	* creature do we need to investigate if it is part of this creature	101	* creature do we need to investigate if it is part of this creature
324	* or another. Likewise, only if something is blocking us do we	102	* or another. Likewise, only if something is blocking us do we
325	* need to investigate if there is a special circumstance that would	103	* need to investigate if there is a special circumstance that would
326	* let the player through (inventory checkers for example)	104	* let the player through (inventory checkers for example)
327	*/	105	*/
328	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))	106	if (!(mflags & P_IS_ALIVE) && !OB_TYPE_MOVE_BLOCK (ob, blocked))
329	return 0;	107	return 0;
330		108
331	if (ob->head != NULL)
332	ob = ob->head;	109	ob = ob->head_ ();
333		110
334	/* We basically go through the stack of objects, and if there is	111	/* We basically go through the stack of objects, and if there is
335	* some other object that has NO_PASS or FLAG_ALIVE set, return	112	* some other object that has NO_PASS or FLAG_ALIVE set, return
336	* true. If we get through the entire stack, that must mean	113	* true. If we get through the entire stack, that must mean
337	* ob is blocking it, so return 0.	114	* ob is blocking it, so return 0.
338	*/	115	*/
339	for (tmp = GET_MAP_OB (m, sx, sy); tmp != NULL; tmp = tmp->above)	116	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
340	{	117	{
341		118	if (OB_MOVE_BLOCK (ob, tmp))
342	/* This must be before the checks below. Code for inventory checkers. */
343	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
344	{	119	{
345	/* If last_sp is set, the player/monster needs an object,	120	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
346	* so we check for it. If they don't have it, they can't	121	if (RESULT_INT (0))
347	* pass through this space.	122	return 1;
348	*/	123	else
349	if (tmp->last_sp)	124	continue;
		125
		126	if (tmp->type == CHECK_INV)
350	{	127	{
351	if (check_inv_recursive (ob, tmp) == NULL)	128	bool have = check_inv_recursive (ob, tmp);
		129
		130	// last_sp set means we block if we don't have.
		131	if (logical_xor (have, tmp->last_sp))
352	return 1;	132	return 1;
353	else	133	}
354	continue;	134	else if (tmp->type == T_MATCH)
		135	{
		136	// T_MATCH allows "entrance" iff the match is true
		137	// == blocks if the match fails
		138
		139	// we could have used an INVOKE_OBJECT, but decided against it, as we
		140	// assume that T_MATCH is relatively common.
		141	if (!match (tmp->slaying, ob, tmp, ob))
		142	return 1;
355	}	143	}
356	else	144	else
357	{	145	return 1; // unconditional block
358	/* In this case, the player must not have the object -	146
359	* if they do, they can't pass through.
360	*/
361	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
362	return 1;
363	else
364	continue;
365	}
366	} /* if check_inv */
367	else	147	} else {
368	{	148	// space does not block the ob, directly, but
369	/* Broke apart a big nasty if into several here to make	149	// anything alive that is not a door still
370	* this more readable. first check - if the space blocks	150	// blocks anything but wizards.
371	* movement, can't move here.	151
372	* second - if a monster, can't move there, unles it is a	152	if (tmp->flag [FLAG_ALIVE]
373	* hidden dm	153	&& tmp->head_ () != ob
374	*/	154	&& tmp != ob
375	if (OB_MOVE_BLOCK (ob, tmp))	155	&& tmp->type != DOOR
376	return 1;	156	&& !tmp->flag [FLAG_WIZPASS])
377	if (QUERY_FLAG (tmp, FLAG_ALIVE) && tmp->head != ob && tmp != ob &&
378	tmp->type != DOOR && !(QUERY_FLAG (tmp, FLAG_WIZ) && tmp->contr->hidden))
379	return 1;	157	return 1;
380	}	158	}
381
382	}	159	}
		160
383	return 0;	161	return 0;
384	}	162	}
385		163
386
387	/*	164	/*
388	* Returns true if the given object can't fit in the given spot.	165	* Returns qthe blocking object if the given object can't fit in the given
389	* This is meant for multi space objects - for single space objecs,	166	* spot. This is meant for multi space objects - for single space objecs,
390	* just calling get_map_blocked and checking that against movement type	167	* just calling get_map_blocked and checking that against movement type
391	* of object. This function goes through all the parts of the	168	* of object. This function goes through all the parts of the multipart
392	* multipart object and makes sure they can be inserted.	169	* object and makes sure they can be inserted.
393	*	170	*
394	* While this doesn't call out of map, the get_map_flags does.	171	* While this doesn't call out of map, the get_map_flags does.
395	*	172	*
396	* This function has been used to deprecate arch_out_of_map -	173	* This function has been used to deprecate arch_out_of_map -
397	* this function also does that check, and since in most cases,	174	* this function also does that check, and since in most cases,
…		…
408	*	185	*
409	* Note this used to be arch_blocked, but with new movement	186	* Note this used to be arch_blocked, but with new movement
410	* code, we need to have actual object to check its move_type	187	* code, we need to have actual object to check its move_type
411	* against the move_block values.	188	* against the move_block values.
412	*/	189	*/
413		190	bool
414	int	191	object::blocked (maptile *m, int x, int y) const
415	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)
416	{	192	{
417	archetype *tmp;	193	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
418	int flag;
419	maptile *m1;
420	sint16 sx, sy;
421
422	if (ob == NULL)
423	{
424	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
425	if (flag & P_OUT_OF_MAP)
426	return P_OUT_OF_MAP;
427
428	/* don't have object, so don't know what types would block */
429	return (GET_MAP_MOVE_BLOCK (m1, sx, sy));
430	}	194	{
		195	mapxy pos (m, x + tmp->x, y + tmp->y);
431		196
432	for (tmp = ob->arch; tmp != NULL; tmp = tmp->more)	197	if (!pos.normalise ())
433	{	198	return 1;
434	flag = get_map_flags (m, &m1, x + tmp->clone.x, y + tmp->clone.y, &sx, &sy);
435		199
436	if (flag & P_OUT_OF_MAP)	200	mapspace &ms = *pos;
437	return P_OUT_OF_MAP;	201
438	if (flag & P_IS_ALIVE)	202	if (ms.flags () & P_IS_ALIVE)
439	return P_IS_ALIVE;	203	return 1;
440		204
441	/* find_first_free_spot() calls this function. However, often	205	/* However, often ob doesn't have any move type
442	* ob doesn't have any move type (when used to place exits)	206	* (signifying non-moving objects)
443	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	207	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
444	*/	208	*/
445		209	if (!move_type && ms.move_block != MOVE_ALL)
446	if (ob->move_type == 0 && GET_MAP_MOVE_BLOCK (m1, sx, sy) != MOVE_ALL)
447	continue;	210	continue;
448		211
449	/* Note it is intentional that we check ob - the movement type of the	212	/* Note it is intentional that we check ob - the movement type of the
450	* head of the object should correspond for the entire object.	213	* head of the object should correspond for the entire object.
451	*/	214	*/
452	if (OB_TYPE_MOVE_BLOCK (ob, GET_MAP_MOVE_BLOCK (m1, sx, sy)))	215	if (ms.blocks (move_type))
453	return AB_NO_PASS;	216	return 1;
454
455	}	217	}
		218
456	return 0;	219	return 0;
457	}	220	}
458		221
459	/* When the map is loaded, load_object does not actually insert objects	222	//-GPL
460	* into inventory, but just links them. What this does is go through
461	* and insert them properly.
462	* The object 'container' is the object that contains the inventory.
463	* This is needed so that we can update the containers weight.
464	*/
465		223
466	void	224	void
467	fix_container (object *container)	225	maptile::set_object_flag (int flag, int value)
468	{	226	{
469	object *tmp = container->inv, *next;	227	if (!spaces)
		228	return;
470		229
471	container->inv = NULL;	230	for (mapspace *ms = spaces + size (); ms-- > spaces; )
472	while (tmp != NULL)	231	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
473	{	232	tmp->flag [flag] = value;
474	next = tmp->below;
475	if (tmp->inv)
476	fix_container (tmp);
477	(void) insert_ob_in_ob (tmp, container);
478	tmp = next;
479	}
480	/* sum_weight will go through and calculate what all the containers are
481	* carrying.
482	*/
483	sum_weight (container);
484	}	233	}
		234
		235	void
		236	maptile::post_load_original ()
		237	{
		238	if (!spaces)
		239	return;
		240
		241	set_object_flag (FLAG_OBJ_ORIGINAL);
		242
		243	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		244	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		245	INVOKE_OBJECT (RESET, tmp);
		246	}
		247
		248	void
		249	maptile::post_load ()
		250	{
		251	#if 0
		252	if (!spaces)
		253	return;
		254
		255	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		256	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		257	; // nop
		258	#endif
		259	}
		260
		261	//+GPL
485		262
486	/* link_multipart_objects go through all the objects on the map looking	263	/* link_multipart_objects go through all the objects on the map looking
487	* for objects whose arch says they are multipart yet according to the	264	* for objects whose arch says they are multipart yet according to the
488	* info we have, they only have the head (as would be expected when	265	* info we have, they only have the head (as would be expected when
489	* they are saved). We do have to look for the old maps that did save	266	* they are saved).
490	* the more sections and not re-add sections for them.
491	*/	267	*/
492		268	void
493	static void	269	maptile::link_multipart_objects ()
494	link_multipart_objects (maptile *m)
495	{	270	{
496	int x, y;	271	if (!spaces)
497	object *tmp, *op, *last, *above;	272	return;
498	archetype *at;
499		273
500	for (x = 0; x < MAP_WIDTH (m); x++)	274	for (mapspace *ms = spaces + size (); ms-- > spaces; )
501	for (y = 0; y < MAP_HEIGHT (m); y++)	275	{
502	for (tmp = get_map_ob (m, x, y); tmp != NULL; tmp = above)	276	object *op = ms->bot;
		277	while (op)
503	{	278	{
504	above = tmp->above;
505
506	/* already multipart - don't do anything more */	279	/* already multipart - don't do anything more */
507	if (tmp->head || tmp->more)	280	if (op->head_ () == op && !op->more && op->arch->more)
508	continue;
509
510	/* If there is nothing more to this object, this for loop
511	* won't do anything.
512	*/
513	for (at = tmp->arch->more, last = tmp; at != NULL; at = at->more, last = op)
514	{	281	{
515	op = arch_to_object (at);	282	op->remove ();
		283	op->expand_tail ();
516		284
517	/* update x,y coordinates */	285	// FIXME: INS_ON_TOP is just a workaround for the pentagram vs.
518	op->x += tmp->x;	286	// multi-tile monster bug, where INS_ABOVE_FLOOR_ONLY put the monsters
519	op->y += tmp->y;	287	// below the pentagrams... hopefully INS_ON_TOP doesn't break anything
520	op->head = tmp;	288	insert (op, op->x, op->y, 0, INS_NO_MERGE | INS_ON_TOP | INS_NO_WALK_ON);
521	op->map = m;	289
522	last->more = op;	290	op = ms->bot; // we are mutating the mapspace too much with INS_ON_TOP
523	op->name = tmp->name;	291	// so we have to reset the iteration through the mapspace
524	op->title = tmp->title;
525	/* we could link all the parts onto tmp, and then just
526	* call insert_ob_in_map once, but the effect is the same,
527	* as insert_ob_in_map will call itself with each part, and
528	* the coding is simpler to just to it here with each part.
529	*/	292	}
530	insert_ob_in_map (op, op->map, tmp, INS_NO_MERGE | INS_ABOVE_FLOOR_ONLY | INS_NO_WALK_ON);	293	else
531	} /* for at = tmp->arch->more */	294	op = op->above;
532	} /* for objects on this space */	295	}
		296	}
533	}	297	}
		298
		299	//-GPL
534		300
535	/*	301	/*
536	* Loads (ands parses) the objects into a given map from the specified	302	* Loads (ands parses) the objects into a given map from the specified
537	* file pointer.	303	* file pointer.
538	* mapflags is the same as we get with load_original_map
539	*/	304	*/
		305	bool
		306	maptile::_load_objects (object_thawer &f)
		307	{
		308	for (;;)
		309	{
		310	coroapi::cede_to_tick (); // cede once in a while
		311
		312	switch (f.kw)
		313	{
		314	case KW_arch:
		315	if (object *op = object::read (f, this))
		316	{
		317	// TODO: why?
		318	if (op->inv)
		319	op->update_weight ();
		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
		346	continue;
		347
		348	case KW_EOF:
		349	return true;
		350
		351	default:
		352	if (!f.parse_error ("map file"))
		353	return false;
		354	break;
		355	}
		356
		357	f.next ();
		358	}
		359
		360	return true;
		361	}
		362
540	void	363	void
541	load_objects (maptile *m, object_thawer & fp, int mapflags)	364	maptile::activate ()
542	{	365	{
543	int i, j;	366	if (spaces)
544	int unique;	367	for (mapspace *ms = spaces + size (); ms-- > spaces; )
545	object *op, *prev = NULL, *last_more = NULL, *otmp;	368	for (object *op = ms->bot; op; op = op->above)
		369	op->activate_recursive ();
		370	}
546		371
547	op = get_object ();	372	void
548	op->map = m; /* To handle buttons correctly */	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	}
549		380
550	while ((i = load_object (fp, op, mapflags)))	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)
551	{	393	{
552	/* if the archetype for the object is null, means that we	394	bool unique = 0;
553	* got an invalid object. Don't do anything with it - the game	395
554	* or editor will not be able to do anything with it either.	396	for (object *op = spaces [i].bot; op; op = op->above)
555	*/
556	if (op->arch == NULL)
557	{	397	{
558	LOG (llevDebug, "Discarding object without arch: %s\n", op->name ? (const char *) op->name : "(null)");	398	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
		399
		400	if (expect_false (!op->can_map_save ()))
559	continue;	401	continue;
		402
		403	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
		404	{
		405	if (flags & IO_UNIQUES)
		406	op->write (f);
		407	}
		408	else if (expect_true (flags & IO_OBJECTS))
		409	op->write (f);
560	}	410	}
561
562
563	switch (i)
564	{
565	case LL_NORMAL:
566	/* if we are loading an overlay, put the floors on the bottom */
567	if ((QUERY_FLAG (op, FLAG_IS_FLOOR) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)) && mapflags & MAP_OVERLAY)
568	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY | INS_MAP_LOAD);
569	else
570	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);
571
572	if (op->inv)
573	sum_weight (op);
574
575	prev = op, last_more = op;
576	break;
577
578	case LL_MORE:
579	insert_ob_in_map (op, m, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ABOVE_FLOOR_ONLY);
580	op->head = prev, last_more->more = op, last_more = op;
581	break;
582	}
583
584	if (mapflags & MAP_STYLE)
585	remove_from_active_list (op);
586
587	op = get_object ();
588	op->map = m;
589	}
590
591	for (i = 0; i < m->width; i++)
592	{	411	}
593	for (j = 0; j < m->height; j++)
594	{
595	unique = 0;
596	/* check for unique items, or unique squares */
597	for (otmp = get_map_ob (m, i, j); otmp; otmp = otmp->above)
598	{
599	if (QUERY_FLAG (otmp, FLAG_UNIQUE) || QUERY_FLAG (otmp, FLAG_OBJ_SAVE_ON_OVL))
600	unique = 1;
601	if (!(mapflags & (MAP_OVERLAY | MAP_PLAYER_UNIQUE) || unique))
602	SET_FLAG (otmp, FLAG_OBJ_ORIGINAL);
603	}
604	}
605	}
606		412
607	free_object (op);	413	coroapi::cede_to_tick ();
608	link_multipart_objects (m);
609	}
610		414
611	/* This saves all the objects on the map in a non destructive fashion.	415	return true;
612	* Modified by MSW 2001-07-01 to do in a single pass - reduces code,
613	* and we only save the head of multi part objects - this is needed
614	* in order to do map tiling properly.
615	*/
616	void
617	save_objects (maptile *m, object_freezer & fp, object_freezer & fp2, int flag)
618	{
619	int i, j = 0, unique = 0;
620	object *op;
621
622	/* first pass - save one-part objects */
623	for (i = 0; i < MAP_WIDTH (m); i++)
624	for (j = 0; j < MAP_HEIGHT (m); j++)
625	{
626	unique = 0;
627	for (op = get_map_ob (m, i, j); op; op = op->above)
628	{
629	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
630	unique = 1;
631
632	if (op->type == PLAYER)
633	{
634	LOG (llevDebug, "Player on map that is being saved\n");
635	continue;
636	}
637
638	if (op->head || op->owner)
639	continue;
640
641	if (unique || QUERY_FLAG (op, FLAG_UNIQUE))
642	save_object (fp2, op, 3);
643	else if (flag == 0 || (flag == 2 && (!QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) && !QUERY_FLAG (op, FLAG_UNPAID))))
644	save_object (fp, op, 3);
645
646	} /* for this space */
647	} /* for this j */
648	}	416	}
649		417
650	/*	418	bool
651	* Allocates, initialises, and returns a pointer to a maptile.	419	maptile::_save_objects (const char *path, int flags)
652	* Modified to no longer take a path option which was not being
653	* used anyways. MSW 2001-07-01
654	*/
655
656	maptile *
657	get_linked_map (void)
658	{	420	{
659	maptile *map = new maptile;	421	object_freezer freezer;
660	maptile *mp;
661		422
662	for (mp = first_map; mp != NULL && mp->next != NULL; mp = mp->next);	423	if (!_save_objects (freezer, flags))
663	if (mp == NULL)	424	return false;
664	first_map = map;
665	else
666	mp->next = map;
667		425
		426	return freezer.save (path);
		427	}
		428
		429	maptile::maptile ()
		430	{
668	map->in_memory = MAP_SWAPPED;	431	in_memory = MAP_SWAPPED;
		432
669	/* The maps used to pick up default x and y values from the	433	/* The maps used to pick up default x and y values from the
670	* map archetype. Mimic that behaviour.	434	* map archetype. Mimic that behaviour.
671	*/	435	*/
672	MAP_WIDTH (map) = 16;	436	width = 16;
673	MAP_HEIGHT (map) = 16;	437	height = 16;
674	MAP_RESET_TIMEOUT (map) = 0;	438	timeout = 300;
675	MAP_TIMEOUT (map) = 300;	439	max_items = MAX_ITEM_PER_ACTION;
676	MAP_ENTER_X (map) = 0;	440	max_volume = 2000000; // 2m³
677	MAP_ENTER_Y (map) = 0;	441	}
678	/*set part to -1 indicating conversion to weather map not yet done */	442
679	MAP_WORLDPARTX (map) = -1;	443	maptile::maptile (int w, int h)
680	MAP_WORLDPARTY (map) = -1;	444	{
681	return map;	445	in_memory = MAP_SWAPPED;
		446
		447	width = w;
		448	height = h;
		449	reset_timeout = 0;
		450	timeout = 300;
		451	enter_x = 0;
		452	enter_y = 0;
		453
		454	alloc ();
682	}	455	}
683		456
684	/*	457	/*
685	* Allocates the arrays contained in a maptile.	458	* Allocates the arrays contained in a maptile.
686	* This basically allocates the dynamic array of spaces for the	459	* This basically allocates the dynamic array of spaces for the
687	* map.	460	* map.
688	*/	461	*/
689
690	void	462	void
691	allocate_map (maptile *m)	463	maptile::alloc ()
692	{	464	{
693	m->in_memory = MAP_IN_MEMORY;
694	/* Log this condition and free the storage. We could I suppose
695	* realloc, but if the caller is presuming the data will be intact,
696	* that is their poor assumption.
697	*/
698	if (m->spaces)	465	if (spaces)
699	{
700	LOG (llevError, "allocate_map called with already allocated map (%s)\n", m->path);
701	free (m->spaces);
702	}
703
704	m->spaces = (MapSpace *) calloc (1, MAP_WIDTH (m) * MAP_HEIGHT (m) * sizeof (MapSpace));
705
706	if (m->spaces == NULL)
707	fatal (OUT_OF_MEMORY);
708	}
709
710	/* Create and returns a map of the specific size. Used
711	* in random map code and the editor.
712	*/
713	maptile *
714	get_empty_map (int sizex, int sizey)
715	{
716	maptile *m = get_linked_map ();
717
718	m->width = sizex;
719	m->height = sizey;
720	m->in_memory = MAP_SWAPPED;
721	allocate_map (m);
722	return m;	466	return;
		467
		468	spaces = salloc0<mapspace> (size ());
723	}	469	}
		470
		471	//+GPL
724		472
725	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	473	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
726	* corresponding to that string. Memory is allocated for this, it must be freed	474	* corresponding to that string. Memory is allocated for this, it must be freed
727	* at a later date.	475	* at a later date.
728	* Called by parse_map_headers below.	476	* Called by parse_map_headers below.
729	*/	477	*/
730
731	static shopitems *	478	static shopitems *
732	parse_shop_string (const char *input_string)	479	parse_shop_string (const char *input_string)
733	{	480	{
734	char *shop_string, *p, *q, *next_semicolon, *next_colon;	481	char *shop_string, *p, *q, *next_semicolon, *next_colon;
735	shopitems *items = NULL;	482	shopitems *items = NULL;
736	int i = 0, number_of_entries = 0;	483	int i = 0, number_of_entries = 0;
737	const typedata *current_type;	484	const typedata *current_type;
738		485
739	shop_string = strdup_local (input_string);	486	shop_string = strdup (input_string);
740	p = shop_string;	487	p = shop_string;
741	/* first we'll count the entries, we'll need that for allocating the array shortly */	488	/* first we'll count the entries, we'll need that for allocating the array shortly */
742	while (p)	489	while (p)
743	{	490	{
744	p = strchr (p, ';');	491	p = strchr (p, ';');
745	number_of_entries++;	492	number_of_entries++;
746	if (p)	493	if (p)
747	p++;	494	p++;
748	}	495	}
		496
749	p = shop_string;	497	p = shop_string;
750	strip_endline (p);	498	strip_endline (p);
751	items = new shopitems[number_of_entries + 1];	499	items = new shopitems[number_of_entries + 1];
752	for (i = 0; i < number_of_entries; i++)	500	for (i = 0; i < number_of_entries; i++)
753	{	501	{
754	if (!p)	502	if (!p)
755	{	503	{
756	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");	504	LOG (llevError, "parse_shop_string: I seem to have run out of string, that shouldn't happen.\n");
757	break;	505	break;
758	}	506	}
		507
759	next_semicolon = strchr (p, ';');	508	next_semicolon = strchr (p, ';');
760	next_colon = strchr (p, ':');	509	next_colon = strchr (p, ':');
761	/* if there is a stregth specified, figure out what it is, we'll need it soon. */	510	/* if there is a stregth specified, figure out what it is, we'll need it soon. */
762	if (next_colon && (!next_semicolon || next_colon < next_semicolon))	511	if (next_colon && (!next_semicolon || next_colon < next_semicolon))
763	items[i].strength = atoi (strchr (p, ':') + 1);	512	items[i].strength = atoi (strchr (p, ':') + 1);
…		…
790	* the next entry while we're at it, better print a warning	539	* the next entry while we're at it, better print a warning
791	*/	540	*/
792	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);	541	LOG (llevError, "invalid type %s defined in shopitems in string %s\n", p, input_string);
793	}	542	}
794	}	543	}
		544
795	items[i].index = number_of_entries;	545	items[i].index = number_of_entries;
796	if (next_semicolon)	546	if (next_semicolon)
797	p = ++next_semicolon;	547	p = ++next_semicolon;
798	else	548	else
799	p = NULL;	549	p = NULL;
800	}	550	}
		551
801	free (shop_string);	552	free (shop_string);
802	return items;	553	return items;
803	}	554	}
804		555
805	/* opposite of parse string, this puts the string that was originally fed in to	556	/* opposite of parse string, this puts the string that was originally fed in to
806	* the map (or something equivilent) into output_string. */	557	* the map (or something equivilent) into output_string. */
807	static void	558	static const char *
808	print_shop_string (maptile *m, char *output_string)	559	print_shop_string (maptile *m)
809	{	560	{
810	int i;	561	static dynbuf_text buf; buf.clear ();
811	char tmp[MAX_BUF];
812		562
813	strcpy (output_string, "");
814	for (i = 0; i < m->shopitems[0].index; i++)	563	for (int i = 0; i < m->shopitems[0].index; i++)
815	{	564	{
816	if (m->shopitems[i].typenum)	565	if (m->shopitems[i].typenum)
817	{	566	{
818	if (m->shopitems[i].strength)	567	if (m->shopitems[i].strength)
819	{
820	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	568	buf.printf ("%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);
821	}
822	else	569	else
823	sprintf (tmp, "%s;", m->shopitems[i].name);	570	buf.printf ("%s;", m->shopitems[i].name);
824	}	571	}
825	else	572	else
826	{	573	{
827	if (m->shopitems[i].strength)	574	if (m->shopitems[i].strength)
828	{
829	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	575	buf.printf ("*:%d;", m->shopitems[i].strength);
830	}
831	else	576	else
832	sprintf (tmp, "*");	577	buf.printf ("*");
833	}	578	}
834	strcat (output_string, tmp);
835	}	579	}
		580
		581	return buf;
836	}	582	}
		583
		584	//-GPL
837		585
838	/* This loads the header information of the map. The header	586	/* This loads the header information of the map. The header
839	* contains things like difficulty, size, timeout, etc.	587	* contains things like difficulty, size, timeout, etc.
840	* this used to be stored in the map object, but with the	588	* this used to be stored in the map object, but with the
841	* addition of tiling, fields beyond that easily named in an	589	* addition of tiling, fields beyond that easily named in an
…		…
843	* put all the stuff in the map object so that names actually make	591	* put all the stuff in the map object so that names actually make
844	* sense.	592	* sense.
845	* This could be done in lex (like the object loader), but I think	593	* This could be done in lex (like the object loader), but I think
846	* currently, there are few enough fields this is not a big deal.	594	* currently, there are few enough fields this is not a big deal.
847	* MSW 2001-07-01	595	* MSW 2001-07-01
848	* return 0 on success, 1 on failure.
849	*/	596	*/
850		597	bool
851	static int	598	maptile::_load_header (object_thawer &thawer)
852	load_map_header (object_thawer & fp, maptile *m)
853	{	599	{
854	char buf[HUGE_BUF], msgbuf[HUGE_BUF], maplorebuf[HUGE_BUF], *key = NULL, *value, *end;	600	for (;;)
855	int msgpos = 0;
856	int maplorepos = 0;
857
858	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
859	{	601	{
860	buf[HUGE_BUF - 1] = 0;	602	switch (thawer.kw)
861	key = buf;
862	while (isspace (*key))
863	key++;
864	if (*key == 0)
865	continue; /* empty line */
866	value = strchr (key, ' ');
867	if (!value)
868	{	603	{
869	end = strchr (key, '\n');	604	case KW_msg:
870	if (end != NULL)	605	thawer.get_ml (KW_endmsg, msg);
871	{	606	break;
872	*end = 0;	607
		608	case KW_lore: // CF+ extension
		609	thawer.get_ml (KW_endlore, maplore);
873	}	610	break;
		611
		612	case KW_maplore:
		613	thawer.get_ml (KW_endmaplore, maplore);
		614	break;
		615
		616	case KW_arch:
		617	if (strcmp (thawer.get_str (), "map"))
		618	LOG (llevError, "%s: loading map and got a non 'arch map' line (arch %s), skipping.\n", &path, thawer.get_str ());
		619	break;
		620
		621	case KW_oid:
		622	thawer.get (this, thawer.get_sint32 ());
		623	break;
		624
		625	case KW_file_format_version: break; // nop
		626
		627	case KW_name: thawer.get (name); break;
		628	case KW_attach: thawer.get (attach); break;
		629	case KW_reset_time: thawer.get (reset_time); break;
		630	case KW_shopgreed: thawer.get (shopgreed); break;
		631	case KW_shopmin: thawer.get (shopmin); break;
		632	case KW_shopmax: thawer.get (shopmax); break;
		633	case KW_shoprace: thawer.get (shoprace); break;
		634	case KW_outdoor: thawer.get (outdoor); break;
		635	case KW_temp: thawer.get (temp); break;
		636	case KW_pressure: thawer.get (pressure); break;
		637	case KW_humid: thawer.get (humid); break;
		638	case KW_windspeed: thawer.get (windspeed); break;
		639	case KW_winddir: thawer.get (winddir); break;
		640	case KW_sky: thawer.get (sky); break;
		641
		642	case KW_per_player: thawer.get (per_player); break;
		643	case KW_per_party: thawer.get (per_party); break;
		644	case KW_no_reset: thawer.get (no_reset); break;
		645	case KW_no_drop: thawer.get (no_drop); break;
		646
		647	case KW_region: default_region = region::find (thawer.get_str ()); break;
		648	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
		649
		650	// old names new names
		651	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
		652	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
		653	case KW_x: case KW_width: thawer.get (width); break;
		654	case KW_y: case KW_height: thawer.get (height); break;
		655	case KW_weight: case KW_reset_timeout: thawer.get (reset_timeout); break;
		656	case KW_value: case KW_swap_time: thawer.get (timeout); break;
		657	case KW_level: case KW_difficulty: thawer.get (difficulty); difficulty = clamp (difficulty, 1, settings.max_level); break;
		658	case KW_invisible: case KW_darkness: thawer.get (darkness); break;
		659	case KW_stand_still: case KW_fixed_resettime: thawer.get (fixed_resettime); break;
		660
		661	case KW_tile_path_1: thawer.get (tile_path [0]); break;
		662	case KW_tile_path_2: thawer.get (tile_path [1]); break;
		663	case KW_tile_path_3: thawer.get (tile_path [2]); break;
		664	case KW_tile_path_4: thawer.get (tile_path [3]); break;
		665
		666	case KW_ERROR:
		667	set_key_text (thawer.kw_str, thawer.value);
		668	break;
		669
		670	case KW_end:
		671	thawer.next ();
		672	return true;
		673
		674	default:
		675	if (!thawer.parse_error ("map", 0))
		676	return false;
		677	break;
874	}	678	}
875	else
876	{
877	*value = 0;
878	value++;
879	end = strchr (value, '\n');
880	while (isspace (*value))
881	{
882	value++;
883	if (*value == '\0' || value == end)
884	{
885	/* Nothing but spaces. */
886	value = NULL;
887	break;
888	}
889	}
890	}
891		679
892	if (!end)	680	thawer.next ();
893	{
894	LOG (llevError, "Error loading map header - did not find a newline - perhaps file is truncated? Buf=%s\n", buf);
895	return 1;
896	}
897
898	/* key is the field name, value is what it should be set
899	* to. We've already done the work to null terminate key,
900	* and strip off any leading spaces for both of these.
901	* We have not touched the newline at the end of the line -
902	* these are needed for some values. the end pointer
903	* points to the first of the newlines.
904	* value could be NULL! It would be easy enough to just point
905	* this to "" to prevent cores, but that would let more errors slide
906	* through.
907	*
908	* First check for entries that do not use the value parameter, then
909	* validate that value is given and check for the remaining entries
910	* that use the parameter.
911	*/
912
913	if (!strcmp (key, "msg"))
914	{
915	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
916	{
917	if (!strcmp (buf, "endmsg\n"))
918	break;
919	else
920	{
921	/* slightly more efficient than strcat */
922	strcpy (msgbuf + msgpos, buf);
923	msgpos += strlen (buf);
924	}
925	}
926	/* There are lots of maps that have empty messages (eg, msg/endmsg
927	* with nothing between). There is no reason in those cases to
928	* keep the empty message. Also, msgbuf contains garbage data
929	* when msgpos is zero, so copying it results in crashes
930	*/
931	if (msgpos != 0)
932	m->msg = strdup_local (msgbuf);
933	}
934	else if (!strcmp (key, "maplore"))
935	{
936	while (fgets (buf, HUGE_BUF - 1, fp) != NULL)
937	{
938	if (!strcmp (buf, "endmaplore\n"))
939	break;
940	else
941	{
942	/* slightly more efficient than strcat */
943	strcpy (maplorebuf + maplorepos, buf);
944	maplorepos += strlen (buf);
945	}
946	}
947	if (maplorepos != 0)
948	m->maplore = strdup_local (maplorebuf);
949	}
950	else if (!strcmp (key, "end"))
951	{
952	break;
953	}
954	else if (value == NULL)
955	{
956	LOG (llevError, "Got '%s' line without parameter in map header\n", key);
957	}
958	else if (!strcmp (key, "arch"))
959	{
960	/* This is an oddity, but not something we care about much. */
961	if (strcmp (value, "map\n"))
962	LOG (llevError, "loading map and got a non 'arch map' line(%s %s)?\n", key, value);
963	}
964	else if (!strcmp (key, "name"))
965	{
966	*end = 0;
967	m->name = strdup_local (value);
968	}
969	/* first strcmp value on these are old names supported
970	* for compatibility reasons. The new values (second) are
971	* what really should be used.
972	*/
973	else if (!strcmp (key, "oid"))
974	{
975	fp.get (m, atoi (value));
976	}
977	else if (!strcmp (key, "attach"))
978	{
979	m->attach = value;
980	}
981	else if (!strcmp (key, "hp") || !strcmp (key, "enter_x"))
982	{
983	m->enter_x = atoi (value);
984	}
985	else if (!strcmp (key, "sp") || !strcmp (key, "enter_y"))
986	{
987	m->enter_y = atoi (value);
988	}
989	else if (!strcmp (key, "x") || !strcmp (key, "width"))
990	{
991	m->width = atoi (value);
992	}
993	else if (!strcmp (key, "y") || !strcmp (key, "height"))
994	{
995	m->height = atoi (value);
996	}
997	else if (!strcmp (key, "weight") || !strcmp (key, "reset_timeout"))
998	{
999	m->reset_timeout = atoi (value);
1000	}
1001	else if (!strcmp (key, "value") || !strcmp (key, "swap_time"))
1002	{
1003	m->timeout = atoi (value);
1004	}
1005	else if (!strcmp (key, "level") || !strcmp (key, "difficulty"))
1006	{
1007	m->difficulty = atoi (value);
1008	}
1009	else if (!strcmp (key, "invisible") || !strcmp (key, "darkness"))
1010	{
1011	m->darkness = atoi (value);
1012	}
1013	else if (!strcmp (key, "stand_still") || !strcmp (key, "fixed_resettime"))
1014	{
1015	m->fixed_resettime = atoi (value);
1016	}
1017	else if (!strcmp (key, "unique"))
1018	{
1019	m->unique = atoi (value);
1020	}
1021	else if (!strcmp (key, "template"))
1022	{
1023	m->templatemap = atoi (value);
1024	}
1025	else if (!strcmp (key, "region"))
1026	{
1027	m->region = get_region_by_name (value);
1028	}
1029	else if (!strcmp (key, "shopitems"))
1030	{
1031	*end = 0;
1032	m->shopitems = parse_shop_string (value);
1033	}
1034	else if (!strcmp (key, "shopgreed"))
1035	{
1036	m->shopgreed = atof (value);
1037	}
1038	else if (!strcmp (key, "shopmin"))
1039	{
1040	m->shopmin = atol (value);
1041	}
1042	else if (!strcmp (key, "shopmax"))
1043	{
1044	m->shopmax = atol (value);
1045	}
1046	else if (!strcmp (key, "shoprace"))
1047	{
1048	*end = 0;
1049	m->shoprace = strdup_local (value);
1050	}
1051	else if (!strcmp (key, "outdoor"))
1052	{
1053	m->outdoor = atoi (value);
1054	}
1055	else if (!strcmp (key, "temp"))
1056	{
1057	m->temp = atoi (value);
1058	}
1059	else if (!strcmp (key, "pressure"))
1060	{
1061	m->pressure = atoi (value);
1062	}
1063	else if (!strcmp (key, "humid"))
1064	{
1065	m->humid = atoi (value);
1066	}
1067	else if (!strcmp (key, "windspeed"))
1068	{
1069	m->windspeed = atoi (value);
1070	}
1071	else if (!strcmp (key, "winddir"))
1072	{
1073	m->winddir = atoi (value);
1074	}
1075	else if (!strcmp (key, "sky"))
1076	{
1077	m->sky = atoi (value);
1078	}
1079	else if (!strcmp (key, "nosmooth"))
1080	{
1081	m->nosmooth = atoi (value);
1082	}
1083	else if (!strncmp (key, "tile_path_", 10))
1084	{
1085	int tile = atoi (key + 10);
1086
1087	if (tile < 1 || tile > 4)
1088	{
1089	LOG (llevError, "load_map_header: tile location %d out of bounds (%s)\n", tile, m->path);
1090	}
1091	else
1092	{
1093	char *path;
1094
1095	*end = 0;
1096
1097	if (m->tile_path[tile - 1])
1098	{
1099	LOG (llevError, "load_map_header: tile location %d duplicated (%s)\n", tile, m->path);
1100	free (m->tile_path[tile - 1]);
1101	m->tile_path[tile - 1] = NULL;
1102	}
1103
1104	if (check_path (value, 1) != -1)
1105	{
1106	/* The unadorned path works. */
1107	path = value;
1108	}
1109	else
1110	{
1111	/* Try again; it could be a relative exit. */
1112
1113	path = path_combine_and_normalize (m->path, value);
1114
1115	if (check_path (path, 1) == -1)
1116	{
1117	LOG (llevError, "get_map_header: Bad tile path %s %s\n", m->path, value);
1118	path = NULL;
1119	}
1120	}
1121
1122	if (editor)
1123	{
1124	/* Use the value as in the file. */
1125	m->tile_path[tile - 1] = strdup_local (value);
1126	}
1127	else if (path != NULL)
1128	{
1129	/* Use the normalized value. */
1130	m->tile_path[tile - 1] = strdup_local (path);
1131	}
1132	} /* end if tile direction (in)valid */
1133	}
1134	else
1135	{
1136	LOG (llevError, "Got unknown value in map header: %s %s\n", key, value);
1137	}
1138	}
1139	if (!key || strcmp (key, "end"))
1140	{	681	}
1141	LOG (llevError, "Got premature eof on map header!\n");
1142	return 1;
1143	}
1144	return 0;
1145	}
1146		682
1147	/*	683	abort ();
1148	* Opens the file "filename" and reads information about the map
1149	* from the given file, and stores it in a newly allocated
1150	* maptile. A pointer to this structure is returned, or NULL on failure.
1151	* flags correspond to those in map.h. Main ones used are
1152	* MAP_PLAYER_UNIQUE, in which case we don't do any name changes, and
1153	* MAP_BLOCK, in which case we block on this load. This happens in all
1154	* cases, no matter if this flag is set or not.
1155	* MAP_STYLE: style map - don't add active objects, don't add to server
1156	* managed map list.
1157	*/
1158
1159	maptile *
1160	load_original_map (const char *filename, int flags)
1161	{
1162	maptile *m;
1163	char pathname[MAX_BUF];
1164
1165	if (flags & MAP_PLAYER_UNIQUE)
1166	strcpy (pathname, filename);
1167	else if (flags & MAP_OVERLAY)
1168	strcpy (pathname, create_overlay_pathname (filename));
1169	else
1170	strcpy (pathname, create_pathname (filename));
1171
1172	LOG (llevDebug, "load_original_map(%x): %s (%s)\n", flags, filename, pathname);
1173
1174	object_thawer thawer (pathname);
1175
1176	if (!thawer)
1177	return 0;
1178
1179	m = get_linked_map ();
1180
1181	strcpy (m->path, filename);
1182	if (load_map_header (thawer, m))
1183	{
1184	LOG (llevError, "Error loading map header for %s, flags=%d\n", filename, flags);
1185	delete_map (m);
1186	return NULL;
1187	}
1188
1189	allocate_map (m);
1190
1191	m->in_memory = MAP_LOADING;
1192	load_objects (m, thawer, flags & (MAP_BLOCK | MAP_STYLE));
1193
1194	m->in_memory = MAP_IN_MEMORY;
1195	if (!MAP_DIFFICULTY (m))
1196	MAP_DIFFICULTY (m) = calculate_difficulty (m);
1197	set_map_reset_time (m);
1198	m->instantiate ();
1199	return (m);
1200	}	684	}
1201		685
1202	/*	686	//+GPL
1203	* Loads a map, which has been loaded earlier, from file.
1204	* Return the map object we load into (this can change from the passed
1205	* option if we can't find the original map)
1206	*/
1207
1208	static maptile *
1209	load_temporary_map (maptile *m)
1210	{
1211	char buf[MAX_BUF];
1212
1213	if (!m->tmpname)
1214	{
1215	LOG (llevError, "No temporary filename for map %s\n", m->path);
1216	strcpy (buf, m->path);
1217	delete_map (m);
1218	m = load_original_map (buf, 0);
1219	if (m == NULL)
1220	return NULL;
1221	fix_auto_apply (m); /* Chests which open as default */
1222	return m;
1223	}
1224
1225	object_thawer thawer (m->tmpname);
1226
1227	if (!thawer)
1228	{
1229	strcpy (buf, m->path);
1230	delete_map (m);
1231	m = load_original_map (buf, 0);
1232	if (!m)
1233	return NULL;
1234	fix_auto_apply (m); /* Chests which open as default */
1235	return m;
1236	}
1237
1238	if (load_map_header (thawer, m))
1239	{
1240	LOG (llevError, "Error loading map header for %s (%s)\n", m->path, m->tmpname);
1241	delete_map (m);
1242	m = load_original_map (m->path, 0);
1243	return NULL;
1244	}
1245	allocate_map (m);
1246
1247	m->in_memory = MAP_LOADING;
1248	load_objects (m, thawer, 0);
1249
1250	m->in_memory = MAP_IN_MEMORY;
1251	INVOKE_MAP (SWAPIN, m);
1252	return m;
1253	}
1254
1255	/*
1256	* Loads a map, which has been loaded earlier, from file.
1257	* Return the map object we load into (this can change from the passed
1258	* option if we can't find the original map)
1259	*/
1260
1261	maptile *
1262	load_overlay_map (const char *filename, maptile *m)
1263	{
1264	char pathname[MAX_BUF];
1265
1266	strcpy (pathname, create_overlay_pathname (filename));
1267
1268	object_thawer thawer (pathname);
1269
1270	if (!thawer)
1271	return m;
1272
1273	if (load_map_header (thawer, m))
1274	{
1275	LOG (llevError, "Error loading map header for overlay %s (%s)\n", m->path, pathname);
1276	delete_map (m);
1277	m = load_original_map (m->path, 0);
1278	return NULL;
1279	}
1280	/*allocate_map(m); */
1281
1282	m->in_memory = MAP_LOADING;
1283	load_objects (m, thawer, MAP_OVERLAY);
1284
1285	m->in_memory = MAP_IN_MEMORY;
1286	return m;
1287	}
1288		687
1289	/******************************************************************************	688	/******************************************************************************
1290	* This is the start of unique map handling code	689	* This is the start of unique map handling code
1291	*****************************************************************************/	690	*****************************************************************************/
1292		691
1293	/* This goes through map 'm' and removed any unique items on the map. */	692	/* This goes through the maptile and removed any unique items on the map. */
1294	static void	693	void
1295	delete_unique_items (maptile *m)	694	maptile::clear_unique_items ()
1296	{	695	{
1297	int i, j, unique;	696	for (int i = 0; i < size (); ++i)
1298	object *op, *next;
1299
1300	for (i = 0; i < MAP_WIDTH (m); i++)
1301	for (j = 0; j < MAP_HEIGHT (m); j++)
1302	{	697	{
1303	unique = 0;	698	int unique = 0;
1304	for (op = get_map_ob (m, i, j); op; op = next)	699	for (object *op = spaces [i].bot; op; )
		700	{
		701	object *above = op->above;
		702
		703	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		704	unique = 1;
		705
		706	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))
		707	op->destroy ();
		708
		709	op = above;
		710	}
		711	}
		712	}
		713
		714	//-GPL
		715
		716	bool
		717	maptile::_save_header (object_freezer &freezer)
		718	{
		719	#define MAP_OUT(k) freezer.put (KW(k), k)
		720	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
		721
		722	MAP_OUT2 (arch, CS(map));
		723
		724	if (name) MAP_OUT (name);
		725	MAP_OUT (swap_time);
		726	MAP_OUT (reset_time);
		727	MAP_OUT (reset_timeout);
		728	MAP_OUT (fixed_resettime);
		729	MAP_OUT (no_reset);
		730	MAP_OUT (no_drop);
		731	MAP_OUT (difficulty);
		732	if (default_region) MAP_OUT2 (region, default_region->name);
		733
		734	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
		735	MAP_OUT (shopgreed);
		736	MAP_OUT (shopmin);
		737	MAP_OUT (shopmax);
		738	if (shoprace) MAP_OUT (shoprace);
		739
		740	MAP_OUT (darkness);
		741	MAP_OUT (width);
		742	MAP_OUT (height);
		743	MAP_OUT (enter_x);
		744	MAP_OUT (enter_y);
		745
		746	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
		747	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
		748
		749	MAP_OUT (outdoor);
		750	MAP_OUT (temp);
		751	MAP_OUT (pressure);
		752	MAP_OUT (humid);
		753	MAP_OUT (windspeed);
		754	MAP_OUT (winddir);
		755	MAP_OUT (sky);
		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
		765	freezer.put (this);
		766	freezer.put (KW(end));
		767
		768	return true;
		769	}
		770
		771	bool
		772	maptile::_save_header (const char *path)
		773	{
		774	object_freezer freezer;
		775
		776	if (!_save_header (freezer))
		777	return false;
		778
		779	return freezer.save (path);
		780	}
		781
		782	//+GPL
		783
		784	/*
		785	* Remove and free all objects in the given map.
		786	*/
		787	void
		788	maptile::clear ()
		789	{
		790	if (spaces)
		791	{
		792	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		793	while (object *op = ms->bot)
1305	{	794	{
		795	// manually remove, as to not trigger anything
1306	next = op->above;	796	if (ms->bot = op->above)
1307	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	797	ms->bot->below = 0;
1308	unique = 1;	798
1309	if (op->head == NULL && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	799	op->flag [FLAG_REMOVED] = true;
		800
		801	object *head = op->head_ ();
		802	if (op == head)
		803	op->destroy ();
		804	else if (head->map != op->map)
1310	{	805	{
1311	clean_object (op);	806	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
1312	if (QUERY_FLAG (op, FLAG_IS_LINKED))	807	head->destroy ();
1313	remove_button_link (op);
1314	remove_ob (op);
1315	free_object (op);
1316	}	808	}
1317	}	809	}
		810
		811	sfree0 (spaces, size ());
1318	}	812	}
1319	}
1320		813
		814	if (buttons)
		815	free_objectlinkpt (buttons), buttons = 0;
1321		816
1322	/*	817	sfree0 (regions, size ());
1323	* Loads unique objects from file(s) into the map which is in memory	818	delete [] regionmap; regionmap = 0;
1324	* m is the map to load unique items into.
1325	*/
1326	static void
1327	load_unique_objects (maptile *m)
1328	{
1329	int count;
1330	char firstname[MAX_BUF];
1331
1332	for (count = 0; count < 10; count++)
1333	{
1334	sprintf (firstname, "%s.v%02d", create_items_path (m->path), count);
1335	if (!access (firstname, R_OK))
1336	break;
1337	}
1338	/* If we get here, we did not find any map */
1339	if (count == 10)
1340	return;
1341
1342	object_thawer thawer (firstname);
1343
1344	if (!thawer)
1345	return;
1346
1347	m->in_memory = MAP_LOADING;
1348	if (m->tmpname == NULL) /* if we have loaded unique items from */
1349	delete_unique_items (m); /* original map before, don't duplicate them */
1350	load_objects (m, thawer, 0);
1351
1352	m->in_memory = MAP_IN_MEMORY;
1353	}	819	}
1354
1355
1356	/*
1357	* Saves a map to file. If flag is set, it is saved into the same
1358	* file it was (originally) loaded from. Otherwise a temporary
1359	* filename will be genarated, and the file will be stored there.
1360	* The temporary filename will be stored in the maptileure.
1361	* If the map is unique, we also save to the filename in the map
1362	* (this should have been updated when first loaded)
1363	*/
1364
1365	int
1366	new_save_map (maptile *m, int flag)
1367	{
1368	char filename[MAX_BUF], buf[MAX_BUF], shop[MAX_BUF];
1369	int i;
1370
1371	if (flag && !*m->path)
1372	{
1373	LOG (llevError, "Tried to save map without path.\n");
1374	return -1;
1375	}
1376
1377	if (flag || (m->unique) || (m->templatemap))
1378	{
1379	if (!m->unique && !m->templatemap)
1380	{ /* flag is set */
1381	if (flag == 2)
1382	strcpy (filename, create_overlay_pathname (m->path));
1383	else
1384	strcpy (filename, create_pathname (m->path));
1385	}
1386	else
1387	strcpy (filename, m->path);
1388
1389	make_path_to_file (filename);
1390	}
1391	else
1392	{
1393	if (!m->tmpname)
1394	m->tmpname = tempnam_local (settings.tmpdir, NULL);
1395
1396	strcpy (filename, m->tmpname);
1397	}
1398
1399	LOG (llevDebug, "Saving map %s to %s\n", m->path, filename);
1400	m->in_memory = MAP_SAVING;
1401
1402	object_freezer freezer;
1403
1404	/* legacy */
1405	fprintf (freezer, "arch map\n");
1406	if (m->name)
1407	fprintf (freezer, "name %s\n", m->name);
1408	if (!flag)
1409	fprintf (freezer, "swap_time %d\n", m->swap_time);
1410	if (m->reset_timeout)
1411	fprintf (freezer, "reset_timeout %d\n", m->reset_timeout);
1412	if (m->fixed_resettime)
1413	fprintf (freezer, "fixed_resettime %d\n", m->fixed_resettime);
1414	/* we unfortunately have no idea if this is a value the creator set
1415	* or a difficulty value we generated when the map was first loaded
1416	*/
1417	if (m->difficulty)
1418	fprintf (freezer, "difficulty %d\n", m->difficulty);
1419	if (m->region)
1420	fprintf (freezer, "region %s\n", m->region->name);
1421	if (m->shopitems)
1422	{
1423	print_shop_string (m, shop);
1424	fprintf (freezer, "shopitems %s\n", shop);
1425	}
1426	if (m->shopgreed)
1427	fprintf (freezer, "shopgreed %f\n", m->shopgreed);
1428	#ifndef WIN32
1429	if (m->shopmin)
1430	fprintf (freezer, "shopmin %llu\n", m->shopmin);
1431	if (m->shopmax)
1432	fprintf (freezer, "shopmax %llu\n", m->shopmax);
1433	#else
1434	if (m->shopmin)
1435	fprintf (freezer, "shopmin %I64u\n", m->shopmin);
1436	if (m->shopmax)
1437	fprintf (freezer, "shopmax %I64u\n", m->shopmax);
1438	#endif
1439	if (m->shoprace)
1440	fprintf (freezer, "shoprace %s\n", m->shoprace);
1441	if (m->darkness)
1442	fprintf (freezer, "darkness %d\n", m->darkness);
1443	if (m->width)
1444	fprintf (freezer, "width %d\n", m->width);
1445	if (m->height)
1446	fprintf (freezer, "height %d\n", m->height);
1447	if (m->enter_x)
1448	fprintf (freezer, "enter_x %d\n", m->enter_x);
1449	if (m->enter_y)
1450	fprintf (freezer, "enter_y %d\n", m->enter_y);
1451	if (m->msg)
1452	fprintf (freezer, "msg\n%sendmsg\n", m->msg);
1453	if (m->maplore)
1454	fprintf (freezer, "maplore\n%sendmaplore\n", m->maplore);
1455	if (m->unique)
1456	fprintf (freezer, "unique %d\n", m->unique);
1457	if (m->templatemap)
1458	fprintf (freezer, "template %d\n", m->templatemap);
1459	if (m->outdoor)
1460	fprintf (freezer, "outdoor %d\n", m->outdoor);
1461	if (m->temp)
1462	fprintf (freezer, "temp %d\n", m->temp);
1463	if (m->pressure)
1464	fprintf (freezer, "pressure %d\n", m->pressure);
1465	if (m->humid)
1466	fprintf (freezer, "humid %d\n", m->humid);
1467	if (m->windspeed)
1468	fprintf (freezer, "windspeed %d\n", m->windspeed);
1469	if (m->winddir)
1470	fprintf (freezer, "winddir %d\n", m->winddir);
1471	if (m->sky)
1472	fprintf (freezer, "sky %d\n", m->sky);
1473	if (m->nosmooth)
1474	fprintf (freezer, "nosmooth %d\n", m->nosmooth);
1475
1476	/* Save any tiling information, except on overlays */
1477	if (flag != 2)
1478	for (i = 0; i < 4; i++)
1479	if (m->tile_path[i])
1480	fprintf (freezer, "tile_path_%d %s\n", i + 1, m->tile_path[i]);
1481
1482	freezer.put (m);
1483	fprintf (freezer, "end\n");
1484
1485	/* In the game save unique items in the different file, but
1486	* in the editor save them to the normal map file.
1487	* If unique map, save files in the proper destination (set by
1488	* player)
1489	*/
1490	if ((flag == 0 || flag == 2) && !m->unique && !m->templatemap)
1491	{
1492	object_freezer unique;
1493
1494	if (flag == 2)
1495	save_objects (m, freezer, unique, 2);
1496	else
1497	save_objects (m, freezer, unique, 0);
1498
1499	sprintf (buf, "%s.v00", create_items_path (m->path));
1500
1501	unique.save (buf);
1502	}
1503	else
1504	{ /* save same file when not playing, like in editor */
1505	save_objects (m, freezer, freezer, 0);
1506	}
1507
1508	freezer.save (filename);
1509
1510	return 0;
1511	}
1512
1513
1514	/*
1515	* Remove and free all objects in the inventory of the given object.
1516	* object.c ?
1517	*/
1518		820
1519	void	821	void
1520	clean_object (object *op)	822	maptile::clear_header ()
1521	{	823	{
1522	object *tmp, *next;	824	name = 0;
		825	msg = 0;
		826	maplore = 0;
		827	shoprace = 0;
		828	delete [] shopitems, shopitems = 0;
1523		829
1524	for (tmp = op->inv; tmp; tmp = next)	830	for (int i = 0; i < 4; i++)
1525	{	831	tile_path [i] = 0;
1526	next = tmp->below;
1527	clean_object (tmp);
1528	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
1529	remove_button_link (tmp);
1530	remove_ob (tmp);
1531	free_object (tmp);
1532	}
1533	}	832	}
1534		833
1535	/*	834	maptile::~maptile ()
1536	* Remove and free all objects in the given map.	835	{
1537	*/	836	assert (destroyed ());
		837	}
1538		838
1539	void	839	void
1540	free_all_objects (maptile *m)	840	maptile::clear_links_to (maptile *m)
1541	{	841	{
1542	int i, j;
1543	object *op;
1544
1545	for (i = 0; i < MAP_WIDTH (m); i++)
1546	for (j = 0; j < MAP_HEIGHT (m); j++)
1547	{
1548	object *previous_obj = NULL;
1549
1550	while ((op = GET_MAP_OB (m, i, j)) != NULL)
1551	{
1552	if (op == previous_obj)
1553	{
1554	LOG (llevDebug, "free_all_objects: Link error, bailing out.\n");
1555	break;
1556	}
1557	previous_obj = op;
1558	if (op->head != NULL)
1559	op = op->head;
1560
1561	/* If the map isn't in memory, free_object will remove and
1562	* free objects in op's inventory. So let it do the job.
1563	*/
1564	if (m->in_memory == MAP_IN_MEMORY)
1565	clean_object (op);
1566	remove_ob (op);
1567	free_object (op);
1568	}
1569	}
1570	}
1571
1572	/*
1573	* Frees everything allocated by the given maptileure.
1574	* don't free tmpname - our caller is left to do that
1575	*/
1576
1577	void
1578	free_map (maptile *m, int flag)
1579	{
1580	int i;
1581
1582	if (!m->in_memory)
1583	{
1584	LOG (llevError, "Trying to free freed map.\n");
1585	return;
1586	}
1587	if (flag && m->spaces)
1588	free_all_objects (m);
1589	if (m->name)
1590	FREE_AND_CLEAR (m->name);
1591	if (m->spaces)
1592	FREE_AND_CLEAR (m->spaces);
1593	if (m->msg)
1594	FREE_AND_CLEAR (m->msg);
1595	if (m->maplore)
1596	FREE_AND_CLEAR (m->maplore);
1597	if (m->shopitems)
1598	delete[]m->shopitems;
1599	m->shopitems = 0;
1600	if (m->shoprace)
1601	FREE_AND_CLEAR (m->shoprace);
1602	if (m->buttons)
1603	free_objectlinkpt (m->buttons);
1604	m->buttons = NULL;
1605	for (i = 0; i < 4; i++)
1606	{
1607	if (m->tile_path[i])
1608	FREE_AND_CLEAR (m->tile_path[i]);
1609	m->tile_map[i] = NULL;
1610	}
1611	m->in_memory = MAP_SWAPPED;
1612	}
1613
1614	/*
1615	* function: vanish maptile
1616	* m : pointer to maptile, if NULL no action
1617	* this deletes all the data on the map (freeing pointers)
1618	* and then removes this map from the global linked list of maps.
1619	*/
1620
1621	void
1622	delete_map (maptile *m)
1623	{
1624	maptile *tmp, *last;
1625	int i;
1626
1627	if (!m)
1628	return;
1629
1630	m->clear ();
1631
1632	if (m->in_memory == MAP_IN_MEMORY)
1633	{
1634	/* change to MAP_SAVING, even though we are not,
1635	* so that remove_ob doesn't do as much work.
1636	*/
1637	m->in_memory = MAP_SAVING;
1638	free_map (m, 1);
1639	}
1640	/* move this out of free_map, since tmpname can still be needed if
1641	* the map is swapped out.
1642	*/
1643	if (m->tmpname)
1644	{
1645	free (m->tmpname);
1646	m->tmpname = NULL;
1647	}
1648	last = NULL;
1649	/* We need to look through all the maps and see if any maps	842	/* We need to look through all the maps and see if any maps
1650	* are pointing at this one for tiling information. Since	843	* are pointing at this one for tiling information. Since
1651	* tiling can be assymetric, we just can not look to see which	844	* tiling can be asymetric, we just can not look to see which
1652	* maps this map tiles with and clears those.	845	* maps this map tiles with and clears those.
1653	*/	846	*/
1654	for (tmp = first_map; tmp != NULL; tmp = tmp->next)
1655	{
1656	if (tmp->next == m)
1657	last = tmp;
1658
1659	/* This should hopefully get unrolled on a decent compiler */
1660	for (i = 0; i < 4; i++)	847	for (int i = 0; i < 4; i++)
1661	if (tmp->tile_map[i] == m)	848	if (tile_map[i] == m)
1662	tmp->tile_map[i] = NULL;	849	tile_map[i] = 0;
1663	}	850	}
1664		851
1665	/* If last is null, then this should be the first map in the list */	852	void
		853	maptile::do_destroy ()
		854	{
		855	attachable::do_destroy ();
		856
		857	clear ();
		858	}
		859
		860	/* decay and destroy perishable items in a map */
		861	void
		862	maptile::do_decay_objects ()
		863	{
1666	if (!last)	864	if (!spaces)
		865	return;
		866
		867	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		868	for (object *above, *op = ms->bot; op; op = above)
1667	{	869	{
1668	if (m == first_map)	870	above = op->above;
1669	first_map = m->next;	871
		872	bool destroy = 0;
		873
		874	// do not decay anything above unique floor tiles (yet :)
		875	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
		876	break;
		877
		878	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
		879	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
		880	|| QUERY_FLAG (op, FLAG_UNIQUE)
		881	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
		882	|| QUERY_FLAG (op, FLAG_UNPAID)
		883	|| op->is_alive ())
		884	; // do not decay
		885	else if (op->is_weapon ())
		886	{
		887	op->stats.dam--;
		888	if (op->stats.dam < 0)
		889	destroy = 1;
		890	}
		891	else if (op->is_armor ())
		892	{
		893	op->stats.ac--;
		894	if (op->stats.ac < 0)
		895	destroy = 1;
		896	}
		897	else if (op->type == FOOD)
		898	{
		899	op->stats.food -= rndm (5, 20);
		900	if (op->stats.food < 0)
		901	destroy = 1;
		902	}
1670	else	903	else
1671	/* m->path is a static char, so should hopefully still have
1672	* some useful data in it.
1673	*/
1674	LOG (llevError, "delete_map: Unable to find map %s in list\n", m->path);
1675	}
1676	else
1677	last->next = m->next;
1678
1679	delete m;
1680	}
1681
1682
1683
1684	/*
1685	* Makes sure the given map is loaded and swapped in.
1686	* name is path name of the map.
1687	* flags meaning:
1688	* 0x1 (MAP_FLUSH): flush the map - always load from the map directory,
1689	* and don't do unique items or the like.
1690	* 0x2 (MAP_PLAYER_UNIQUE) - this is a unique map for each player.
1691	* dont do any more name translation on it.
1692	*
1693	* Returns a pointer to the given map.
1694	*/
1695
1696	maptile *
1697	ready_map_name (const char *name, int flags)
1698	{
1699	maptile *m;
1700
1701	if (!name)
1702	return (NULL);
1703
1704	/* Have we been at this level before? */
1705	m = has_been_loaded (name);
1706
1707	/* Map is good to go, so just return it */
1708	if (m && (m->in_memory == MAP_LOADING || m->in_memory == MAP_IN_MEMORY))
1709	{
1710	return m;
1711	}
1712
1713	/* unique maps always get loaded from their original location, and never
1714	* a temp location. Likewise, if map_flush is set, or we have never loaded
1715	* this map, load it now. I removed the reset checking from here -
1716	* it seems the probability of a player trying to enter a map that should
1717	* reset but hasn't yet is quite low, and removing that makes this function
1718	* a bit cleaner (and players probably shouldn't rely on exact timing for
1719	* resets in any case - if they really care, they should use the 'maps command.
1720	*/
1721	if ((flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)) || !m)
1722	{
1723
1724	/* first visit or time to reset */
1725	if (m)
1726	{	904	{
1727	clean_tmp_map (m); /* Doesn't make much difference */	905	int mat = op->materials;
1728	delete_map (m);	906
		907	if (mat & M_PAPER
		908	|| mat & M_LEATHER
		909	|| mat & M_WOOD
		910	|| mat & M_ORGANIC
		911	|| mat & M_CLOTH
		912	|| mat & M_LIQUID
		913	|| (mat & M_IRON && rndm (1, 5) == 1)
		914	|| (mat & M_GLASS && rndm (1, 2) == 1)
		915	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
		916	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
		917	|| (mat & M_ICE && temp > 32))
		918	destroy = 1;
1729	}	919	}
1730		920
1731	/* create and load a map */	921	/* adjust overall chance below */
1732	if (flags & MAP_PLAYER_UNIQUE)	922	if (destroy && rndm (0, 1))
1733	LOG (llevDebug, "Trying to load map %s.\n", name);	923	op->destroy ();
1734	else
1735	LOG (llevDebug, "Trying to load map %s.\n", create_pathname (name));
1736
1737	//eval_pv ("$x = Event::time", 1);//D
1738	if (!(m = load_original_map (name, (flags & MAP_PLAYER_UNIQUE))))
1739	return (NULL);
1740	//eval_pv ("warn \"LOAD \", Event::time - $x", 1);//D
1741
1742	fix_auto_apply (m); /* Chests which open as default */
1743
1744	/* If a player unique map, no extra unique object file to load.
1745	* if from the editor, likewise.
1746	*/
1747	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE)))
1748	load_unique_objects (m);
1749
1750	if (!(flags & (MAP_FLUSH | MAP_PLAYER_UNIQUE | MAP_OVERLAY)))
1751	{
1752	m = load_overlay_map (name, m);
1753	if (m == NULL)
1754	return NULL;
1755	}	924	}
1756
1757	if (flags & MAP_PLAYER_UNIQUE)
1758	INVOKE_MAP (SWAPIN, m);
1759
1760	}
1761	else
1762	{
1763	/* If in this loop, we found a temporary map, so load it up. */
1764
1765	m = load_temporary_map (m);
1766	if (m == NULL)
1767	return NULL;
1768	load_unique_objects (m);
1769
1770	clean_tmp_map (m);
1771	m->in_memory = MAP_IN_MEMORY;
1772	/* tempnam() on sun systems (probably others) uses malloc
1773	* to allocated space for the string. Free it here.
1774	* In some cases, load_temporary_map above won't find the
1775	* temporary map, and so has reloaded a new map. If that
1776	* is the case, tmpname is now null
1777	*/
1778	if (m->tmpname)
1779	free (m->tmpname);
1780	m->tmpname = NULL;
1781	/* It's going to be saved anew anyway */
1782	}
1783
1784	/* Below here is stuff common to both first time loaded maps and
1785	* temp maps.
1786	*/
1787
1788	decay_objects (m); /* start the decay */
1789	/* In case other objects press some buttons down */
1790	update_buttons (m);
1791	if (m->outdoor)
1792	set_darkness_map (m);
1793	/* run the weather over this map */
1794	weather_effect (name);
1795	return m;
1796	}	925	}
1797
1798		926
1799	/*	927	/*
1800	* This routine is supposed to find out the difficulty of the map.	928	* This routine is supposed to find out the difficulty of the map.
1801	* difficulty does not have a lot to do with character level,	929	* difficulty does not have a lot to do with character level,
1802	* but does have a lot to do with treasure on the map.	930	* but does have a lot to do with treasure on the map.
1803	*	931	*
1804	* Difficulty can now be set by the map creature. If the value stored	932	* Difficulty can now be set by the map creator. If the value stored
1805	* in the map is zero, then use this routine. Maps should really	933	* in the map is zero, then use this routine. Maps should really
1806	* have a difficulty set than using this function - human calculation	934	* have a difficulty set rather than using this function - human calculation
1807	* is much better than this functions guesswork.	935	* is much better than this function's guesswork.
1808	*/	936	*/
1809
1810	int	937	int
1811	calculate_difficulty (maptile *m)	938	maptile::estimate_difficulty () const
1812	{	939	{
1813	object *op;
1814	archetype *at;
1815	int x, y, i;
1816	long monster_cnt = 0;	940	long monster_cnt = 0;
1817	double avgexp = 0;	941	double avgexp = 0;
1818	sint64 total_exp = 0;	942	sint64 total_exp = 0;
1819		943
1820	if (MAP_DIFFICULTY (m))	944	for (mapspace *ms = spaces + size (); ms-- > spaces; )
1821	{	945	for (object *op = ms->bot; op; op = op->above)
1822	LOG (llevDebug, "Using stored map difficulty: %d\n", MAP_DIFFICULTY (m));
1823	return MAP_DIFFICULTY (m);
1824	}
1825
1826	for (x = 0; x < MAP_WIDTH (m); x++)
1827	for (y = 0; y < MAP_HEIGHT (m); y++)
1828	for (op = get_map_ob (m, x, y); op != NULL; op = op->above)
1829	{	946	{
1830	if (QUERY_FLAG (op, FLAG_MONSTER))	947	if (QUERY_FLAG (op, FLAG_MONSTER))
1831	{	948	{
1832	total_exp += op->stats.exp;	949	total_exp += op->stats.exp;
1833	monster_cnt++;	950	monster_cnt++;
1834	}	951	}
1835		952
1836	if (QUERY_FLAG (op, FLAG_GENERATOR))	953	if (QUERY_FLAG (op, FLAG_GENERATOR))
1837	{	954	{
1838	total_exp += op->stats.exp;	955	total_exp += op->stats.exp;
1839	at = type_to_archetype (GENERATE_TYPE (op));
1840		956
1841	if (at != NULL)	957	if (archetype *at = op->other_arch)
		958	{
1842	total_exp += at->clone.stats.exp * 8;	959	total_exp += at->stats.exp * 8;
1843
1844	monster_cnt++;	960	monster_cnt++;
1845	}	961	}
		962
		963	for (object *inv = op->inv; inv; inv = inv->below)
		964	{
		965	total_exp += op->stats.exp * 8;
		966	monster_cnt++;
		967	}
1846	}	968	}
		969	}
1847		970
1848	avgexp = (double) total_exp / monster_cnt;	971	avgexp = (double) total_exp / monster_cnt;
1849		972
1850	for (i = 1; i <= settings.max_level; i++)	973	for (int i = 1; i <= settings.max_level; i++)
1851	{
1852	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))	974	if ((level_exp (i, 1) - level_exp (i - 1, 1)) > (100 * avgexp))
1853	{
1854	/* LOG(llevDebug, "Calculated difficulty for map: %s: %d\n", m->name, i); */
1855	return i;	975	return i;
1856	}
1857	}
1858		976
1859	return 1;	977	return 1;
1860	}
1861
1862	void
1863	clean_tmp_map (maptile *m)
1864	{
1865	if (m->tmpname == NULL)
1866	return;
1867	INVOKE_MAP (CLEAN, m);
1868	(void) unlink (m->tmpname);
1869	}
1870
1871	void
1872	free_all_maps (void)
1873	{
1874	int real_maps = 0;
1875
1876	while (first_map)
1877	{
1878	/* I think some of the callers above before it gets here set this to be
1879	* saving, but we still want to free this data
1880	*/
1881	if (first_map->in_memory == MAP_SAVING)
1882	first_map->in_memory = MAP_IN_MEMORY;
1883	delete_map (first_map);
1884	real_maps++;
1885	}
1886	LOG (llevDebug, "free_all_maps: Freed %d maps\n", real_maps);
1887	}	978	}
1888		979
1889	/* change_map_light() - used to change map light level (darkness)	980	/* change_map_light() - used to change map light level (darkness)
1890	* up or down. Returns true if successful. It should now be	981	* up or down. Returns true if successful. It should now be
1891	* possible to change a value by more than 1.	982	* possible to change a value by more than 1.
1892	* Move this from los.c to map.c since this is more related	983	* Move this from los.c to map.c since this is more related
1893	* to maps than los.	984	* to maps than los.
1894	* postive values make it darker, negative make it brighter	985	* postive values make it darker, negative make it brighter
1895	*/	986	*/
1896
1897	int	987	int
1898	change_map_light (maptile *m, int change)	988	maptile::change_map_light (int change)
1899	{	989	{
1900	int new_level = m->darkness + change;
1901
1902	/* Nothing to do */	990	/* Nothing to do */
1903	if (!change || (new_level <= 0 && m->darkness == 0) || (new_level >= MAX_DARKNESS && m->darkness >= MAX_DARKNESS))	991	if (!change)
1904	{
1905	return 0;	992	return 0;
1906	}
1907		993
1908	/* inform all players on the map */	994	/* inform all players on the map */
1909	if (change > 0)	995	if (change > 0)
1910	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes darker.");	996	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1911	else	997	else
1912	new_info_map (NDI_BLACK | NDI_UNIQUE, m, "It becomes brighter.");	998	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1913		999
1914	/* Do extra checking. since m->darkness is a unsigned value,	1000	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1915	* we need to be extra careful about negative values.
1916	* In general, the checks below are only needed if change
1917	* is not +/-1
1918	*/
1919	if (new_level < 0)
1920	m->darkness = 0;
1921	else if (new_level >= MAX_DARKNESS)
1922	m->darkness = MAX_DARKNESS;
1923	else
1924	m->darkness = new_level;
1925		1001
1926	/* All clients need to get re-updated for the change */	1002	/* All clients need to get re-updated for the change */
1927	update_all_map_los (m);	1003	update_all_map_los (this);
		1004
1928	return 1;	1005	return 1;
1929	}	1006	}
1930
1931		1007
1932	/*	1008	/*
1933	* This function updates various attributes about a specific space	1009	* This function updates various attributes about a specific space
1934	* on the map (what it looks like, whether it blocks magic,	1010	* on the map (what it looks like, whether it blocks magic,
1935	* has a living creatures, prevents people from passing	1011	* has a living creatures, prevents people from passing
1936	* through, etc)	1012	* through, etc)
1937	*/	1013	*/
1938	void	1014	void
1939	update_position (maptile *m, int x, int y)	1015	mapspace::update_ ()
1940	{	1016	{
1941	object *tmp, *last = NULL;	1017	object *last = 0;
1942	uint8 flags = 0, oldflags, light = 0, anywhere = 0;	1018	uint8 flags = P_UPTODATE;
1943	New_Face *top, *floor, *middle;	1019	sint8 light = 0;
1944	object *top_obj, *floor_obj, *middle_obj;
1945	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1020	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1021	uint64_t volume = 0;
		1022	uint32_t items = 0;
		1023	object *anywhere = 0;
		1024	uint8_t middle_visibility = 0;
1946		1025
1947	oldflags = GET_MAP_FLAGS (m, x, y);	1026	//object *middle = 0;
1948	if (!(oldflags & P_NEED_UPDATE))	1027	//object *top = 0;
1949	{	1028	//object *floor = 0;
1950	LOG (llevDebug, "update_position called with P_NEED_UPDATE not set: %s (%d, %d)\n", m->path, x, y);	1029	// this seems to generate better code than using locals, above
1951	return;	1030	object *&top = faces_obj[0] = 0;
		1031	object *&middle = faces_obj[1] = 0;
		1032	object *&floor = faces_obj[2] = 0;
		1033
		1034	object::flags_t allflags; // all flags of all objects or'ed together
		1035
		1036	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1952	}	1037	{
1953		1038	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1954	middle = blank_face;
1955	top = blank_face;
1956	floor = blank_face;
1957
1958	middle_obj = NULL;
1959	top_obj = NULL;
1960	floor_obj = NULL;
1961
1962	for (tmp = get_map_ob (m, x, y); tmp; last = tmp, tmp = tmp->above)
1963	{
1964
1965	/* This could be made additive I guess (two lights better than
1966	* one). But if so, it shouldn't be a simple additive - 2
1967	* light bulbs do not illuminate twice as far as once since
1968	* it is a disapation factor that is squared (or is it cubed?)
1969	*/
1970	if (tmp->glow_radius > light)
1971	light = tmp->glow_radius;	1039	light += tmp->glow_radius;
1972		1040
1973	/* This call is needed in order to update objects the player	1041	/* This call is needed in order to update objects the player
1974	* is standing in that have animations (ie, grass, fire, etc).	1042	* is standing in that have animations (ie, grass, fire, etc).
1975	* However, it also causes the look window to be re-drawn	1043	* However, it also causes the look window to be re-drawn
1976	* 3 times each time the player moves, because many of the	1044	* 3 times each time the player moves, because many of the
1977	* functions the move_player calls eventualy call this.	1045	* functions the move_player calls eventualy call this.
1978	*	1046	*
1979	* Always put the player down for drawing.	1047	* Always put the player down for drawing.
1980	*/	1048	*/
1981	if (!tmp->invisible)	1049	if (expect_true (!tmp->invisible))
1982	{	1050	{
1983	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1051	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1984	{
1985	top = tmp->face;
1986	top_obj = tmp;	1052	top = tmp;
1987	}	1053	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1988	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1989	{	1054	{
1990	/* If we got a floor, that means middle and top were below it,	1055	/* If we got a floor, that means middle and top were below it,
1991	* so should not be visible, so we clear them.	1056	* so should not be visible, so we clear them.
1992	*/	1057	*/
1993	middle = blank_face;	1058	middle = 0;
1994	top = blank_face;	1059	top = 0;
1995	floor = tmp->face;
1996	floor_obj = tmp;	1060	floor = tmp;
		1061	volume = 0;
		1062	items = 0;
1997	}	1063	}
1998	/* Flag anywhere have high priority */	1064	else
1999	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
2000	{	1065	{
2001	middle = tmp->face;	1066	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1067	{
		1068	++items;
		1069	volume += tmp->volume ();
		1070	}
2002		1071
2003	middle_obj = tmp;	1072	/* Flag anywhere have high priority */
		1073	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
2004	anywhere = 1;	1074	anywhere = tmp;
2005	}	1075
2006	/* Find the highest visible face around. If equal	1076	/* Find the highest visible face around. If equal
2007	* visibilities, we still want the one nearer to the	1077	* visibilities, we still want the one nearer to the
2008	* top	1078	* top
2009	*/	1079	*/
2010	else if (middle == blank_face || (tmp->face->visibility > middle->visibility && !anywhere))	1080	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
2011	{	1081	{
2012	middle = tmp->face;	1082	middle_visibility = ::faces [tmp->face].visibility;
2013	middle_obj = tmp;	1083	middle = tmp;
		1084	}
2014	}	1085	}
2015	}	1086	}
2016	if (tmp == tmp->above)
2017	{
2018	LOG (llevError, "Error in structure of map\n");
2019	exit (-1);
2020	}
2021		1087
2022	move_slow |= tmp->move_slow;	1088	move_slow |= tmp->move_slow;
2023	move_block |= tmp->move_block;	1089	move_block |= tmp->move_block;
2024	move_on |= tmp->move_on;	1090	move_on |= tmp->move_on;
2025	move_off |= tmp->move_off;	1091	move_off |= tmp->move_off;
2026	move_allow |= tmp->move_allow;	1092	move_allow |= tmp->move_allow;
2027		1093
2028	if (QUERY_FLAG (tmp, FLAG_ALIVE))	1094	allflags |= tmp->flag;
2029	flags |= P_IS_ALIVE;	1095
2030	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC))	1096	if (tmp->type == PLAYER) flags |= P_PLAYER;
2031	flags |= P_NO_MAGIC;
2032	if (QUERY_FLAG (tmp, FLAG_DAMNED))
2033	flags |= P_NO_CLERIC;
2034	if (tmp->type == SAFE_GROUND)	1097	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
2035	flags |= P_SAFE;
2036
2037	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW))
2038	flags |= P_BLOCKSVIEW;
2039	} /* for stack of objects */
2040
2041	/* we don't want to rely on this function to have accurate flags, but
2042	* since we're already doing the work, we calculate them here.
2043	* if they don't match, logic is broken someplace.
2044	*/
2045	if (((oldflags & ~(P_NEED_UPDATE | P_NO_ERROR)) != flags) && (!(oldflags & P_NO_ERROR)))
2046	{	1098	}
2047	LOG (llevDebug, "update_position: updated flags do not match old flags: %s (old=%d,new=%d) %x != %x\n",	1099
2048	m->path, x, y, (oldflags & ~P_NEED_UPDATE), flags);	1100	// FLAG_SEE_ANYWHERE takes precedence
2049	}	1101	if (anywhere)
2050	SET_MAP_FLAGS (m, x, y, flags);	1102	middle = anywhere;
2051	SET_MAP_MOVE_BLOCK (m, x, y, move_block & ~move_allow);	1103
2052	SET_MAP_MOVE_ON (m, x, y, move_on);	1104	// ORing all flags together and checking them here is much faster
2053	SET_MAP_MOVE_OFF (m, x, y, move_off);	1105	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
2054	SET_MAP_MOVE_SLOW (m, x, y, move_slow);	1106	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1107	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1108	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1109
		1110	this->light = min (light, MAX_LIGHT_RADIUS);
		1111	this->flags_ = flags;
		1112	this->move_block = move_block & ~move_allow;
		1113	this->move_on = move_on;
		1114	this->move_off = move_off;
		1115	this->move_slow = move_slow;
		1116	this->volume_ = (volume + 1023) / 1024;
		1117	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
2055		1118
2056	/* At this point, we have a floor face (if there is a floor),	1119	/* At this point, we have a floor face (if there is a floor),
2057	* and the floor is set - we are not going to touch it at	1120	* and the floor is set - we are not going to touch it at
2058	* this point.	1121	* this point.
2059	* middle contains the highest visibility face.	1122	* middle contains the highest visibility face.
…		…
2066	* middle face. This should not happen, as we already have the	1129	* middle face. This should not happen, as we already have the
2067	* else statement above so middle should not get set. OTOH, it	1130	* else statement above so middle should not get set. OTOH, it
2068	* may be possible for the faces to match but be different objects.	1131	* may be possible for the faces to match but be different objects.
2069	*/	1132	*/
2070	if (top == middle)	1133	if (top == middle)
2071	middle = blank_face;	1134	middle = 0;
2072		1135
2073	/* There are three posibilities at this point:	1136	/* There are three posibilities at this point:
2074	* 1) top face is set, need middle to be set.	1137	* 1) top face is set, need middle to be set.
2075	* 2) middle is set, need to set top.	1138	* 2) middle is set, need to set top.
2076	* 3) neither middle or top is set - need to set both.	1139	* 3) neither middle or top is set - need to set both.
2077	*/	1140	*/
2078		1141
2079	for (tmp = last; tmp; tmp = tmp->below)	1142	for (object *tmp = last; tmp; tmp = tmp->below)
2080	{	1143	{
2081	/* Once we get to a floor, stop, since we already have a floor object */	1144	/* Once we get to a floor, stop, since we already have a floor object */
2082	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1145	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))
2083	break;	1146	break;
2084		1147
2085	/* If two top faces are already set, quit processing */	1148	/* If two top faces are already set, quit processing */
2086	if ((top != blank_face) && (middle != blank_face))	1149	if (top && middle)
2087	break;	1150	break;
2088		1151
2089	/* Only show visible faces, unless its the editor - show all */	1152	/* Only show visible faces */
2090	if (!tmp->invisible || editor)	1153	if (!tmp->invisible)
2091	{	1154	{
2092	/* Fill in top if needed */	1155	/* Fill in top if needed */
2093	if (top == blank_face)	1156	if (!top)
2094	{	1157	{
2095	top = tmp->face;
2096	top_obj = tmp;	1158	top = tmp;
2097	if (top == middle)	1159	if (top == middle)
2098	middle = blank_face;	1160	middle = 0;
2099	}	1161	}
2100	else	1162	else
2101	{	1163	{
2102	/* top is already set - we should only get here if	1164	/* top is already set - we should only get here if
2103	* middle is not set	1165	* middle is not set
2104	*	1166	*
2105	* Set the middle face and break out, since there is nothing	1167	* Set the middle face and break out, since there is nothing
2106	* more to fill in. We don't check visiblity here, since	1168	* more to fill in. We don't check visiblity here, since
2107	*	1169	*
2108	*/	1170	*/
2109	if (tmp->face != top)	1171	if (tmp != top)
2110	{	1172	{
2111	middle = tmp->face;
2112	middle_obj = tmp;	1173	middle = tmp;
2113	break;	1174	break;
2114	}	1175	}
2115	}	1176	}
2116	}	1177	}
2117	}	1178	}
		1179
2118	if (middle == floor)	1180	if (middle == floor)
2119	middle = blank_face;	1181	middle = 0;
		1182
2120	if (top == middle)	1183	if (top == middle)
2121	middle = blank_face;	1184	middle = 0;
2122	SET_MAP_FACE (m, x, y, top, 0);
2123	if (top != blank_face)
2124	SET_MAP_FACE_OBJ (m, x, y, top_obj, 0);
2125	else
2126	SET_MAP_FACE_OBJ (m, x, y, NULL, 0);
2127	SET_MAP_FACE (m, x, y, middle, 1);
2128	if (middle != blank_face)
2129	SET_MAP_FACE_OBJ (m, x, y, middle_obj, 1);
2130	else
2131	SET_MAP_FACE_OBJ (m, x, y, NULL, 1);
2132	SET_MAP_FACE (m, x, y, floor, 2);
2133	if (floor != blank_face)
2134	SET_MAP_FACE_OBJ (m, x, y, floor_obj, 2);
2135	else
2136	SET_MAP_FACE_OBJ (m, x, y, NULL, 2);
2137	SET_MAP_LIGHT (m, x, y, light);
2138	}
2139		1185
2140		1186	#if 0
2141	void	1187	faces_obj [0] = top;
2142	set_map_reset_time (maptile *map)	1188	faces_obj [1] = middle;
2143	{	1189	faces_obj [2] = floor;
2144	int timeout;	1190	#endif
2145
2146	timeout = MAP_RESET_TIMEOUT (map);
2147	if (timeout <= 0)
2148	timeout = MAP_DEFAULTRESET;
2149	if (timeout >= MAP_MAXRESET)
2150	timeout = MAP_MAXRESET;
2151	MAP_WHEN_RESET (map) = seconds () + timeout;
2152	}	1191	}
2153		1192
2154	/* this updates the orig_map->tile_map[tile_num] value after loading	1193	maptile *
2155	* the map. It also takes care of linking back the freshly loaded	1194	maptile::tile_available (int dir, bool load)
2156	* maps tile_map values if it tiles back to this one. It returns
2157	* the value of orig_map->tile_map[tile_num]. It really only does this
2158	* so that it is easier for calling functions to verify success.
2159	*/
2160
2161	static maptile *
2162	load_and_link_tiled_map (maptile *orig_map, int tile_num)
2163	{	1195	{
2164	int dest_tile = (tile_num + 2) % 4;	1196	if (tile_path[dir])
2165	char *path = path_combine_and_normalize (orig_map->path, orig_map->tile_path[tile_num]);	1197	{
		1198	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1199	return tile_map[dir];
2166		1200
2167	orig_map->tile_map[tile_num] = ready_map_name (path, 0);	1201	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1202	return tile_map[dir];
		1203	}
2168		1204
2169	/* need to do a strcmp here as the orig_map->path is not a shared string */	1205	return 0;
2170	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))
2171	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
2172
2173	return orig_map->tile_map[tile_num];
2174	}	1206	}
2175		1207
2176	/* this returns TRUE if the coordinates (x,y) are out of	1208	/* this returns TRUE if the coordinates (x,y) are out of
2177	* map m. This function also takes into account any	1209	* map m. This function also takes into account any
2178	* tiling considerations, loading adjacant maps as needed.	1210	* tiling considerations, loading adjacant maps as needed.
2179	* This is the function should always be used when it	1211	* This is the function should always be used when it
2180	* necessary to check for valid coordinates.	1212	* necessary to check for valid coordinates.
2181	* This function will recursively call itself for the	1213	* This function will recursively call itself for the
2182	* tiled maps.	1214	* tiled maps.
2183	*
2184	*
2185	*/	1215	*/
2186	int	1216	int
2187	out_of_map (maptile *m, int x, int y)	1217	out_of_map (maptile *m, int x, int y)
2188	{	1218	{
2189
2190	/* If we get passed a null map, this is obviously the	1219	/* If we get passed a null map, this is obviously the
2191	* case. This generally shouldn't happen, but if the	1220	* case. This generally shouldn't happen, but if the
2192	* map loads fail below, it could happen.	1221	* map loads fail below, it could happen.
2193	*/	1222	*/
2194	if (!m)	1223	if (!m)
2195	return 0;	1224	return 0;
2196		1225
2197	if (x < 0)	1226	if (x < 0)
2198	{	1227	{
2199	if (!m->tile_path[3])	1228	if (!m->tile_available (3))
2200	return 1;	1229	return 1;
2201	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)	1230
2202	{
2203	load_and_link_tiled_map (m, 3);
2204	}
2205	return (out_of_map (m->tile_map[3], x + MAP_WIDTH (m->tile_map[3]), y));	1231	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
2206	}
2207	if (x >= MAP_WIDTH (m))
2208	{	1232	}
2209	if (!m->tile_path[1])	1233
		1234	if (x >= m->width)
		1235	{
		1236	if (!m->tile_available (1))
2210	return 1;	1237	return 1;
2211	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)	1238
2212	{
2213	load_and_link_tiled_map (m, 1);
2214	}
2215	return (out_of_map (m->tile_map[1], x - MAP_WIDTH (m), y));	1239	return out_of_map (m->tile_map[1], x - m->width, y);
2216	}	1240	}
		1241
2217	if (y < 0)	1242	if (y < 0)
2218	{	1243	{
2219	if (!m->tile_path[0])	1244	if (!m->tile_available (0))
2220	return 1;	1245	return 1;
2221	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)	1246
2222	{
2223	load_and_link_tiled_map (m, 0);
2224	}
2225	return (out_of_map (m->tile_map[0], x, y + MAP_HEIGHT (m->tile_map[0])));	1247	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
2226	}
2227	if (y >= MAP_HEIGHT (m))
2228	{	1248	}
2229	if (!m->tile_path[2])	1249
		1250	if (y >= m->height)
		1251	{
		1252	if (!m->tile_available (2))
2230	return 1;	1253	return 1;
2231	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)	1254
2232	{
2233	load_and_link_tiled_map (m, 2);
2234	}
2235	return (out_of_map (m->tile_map[2], x, y - MAP_HEIGHT (m)));	1255	return out_of_map (m->tile_map[2], x, y - m->height);
2236	}	1256	}
2237		1257
2238	/* Simple case - coordinates are within this local	1258	/* Simple case - coordinates are within this local
2239	* map.	1259	* map.
2240	*/	1260	*/
…		…
2243		1263
2244	/* This is basically the same as out_of_map above, but	1264	/* This is basically the same as out_of_map above, but
2245	* instead we return NULL if no map is valid (coordinates	1265	* instead we return NULL if no map is valid (coordinates
2246	* out of bounds and no tiled map), otherwise it returns	1266	* out of bounds and no tiled map), otherwise it returns
2247	* the map as that the coordinates are really on, and	1267	* the map as that the coordinates are really on, and
2248	* updates x and y to be the localized coordinates.	1268	* updates x and y to be the localised coordinates.
2249	* Using this is more efficient of calling out_of_map	1269	* Using this is more efficient of calling out_of_map
2250	* and then figuring out what the real map is	1270	* and then figuring out what the real map is
2251	*/	1271	*/
2252	maptile *	1272	maptile *
2253	get_map_from_coord (maptile *m, sint16 * x, sint16 * y)	1273	maptile::xy_find (sint16 &x, sint16 &y)
2254	{	1274	{
2255
2256	if (*x < 0)	1275	if (x < 0)
2257	{	1276	{
2258	if (!m->tile_path[3])	1277	if (!tile_available (3))
2259	return NULL;	1278	return 0;
2260	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
2261	load_and_link_tiled_map (m, 3);
2262		1279
2263	*x += MAP_WIDTH (m->tile_map[3]);	1280	x += tile_map[3]->width;
2264	return (get_map_from_coord (m->tile_map[3], x, y));	1281	return tile_map[3]->xy_find (x, y);
2265	}
2266	if (*x >= MAP_WIDTH (m))
2267	{	1282	}
2268	if (!m->tile_path[1])	1283
		1284	if (x >= width)
		1285	{
		1286	if (!tile_available (1))
2269	return NULL;	1287	return 0;
2270	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
2271	load_and_link_tiled_map (m, 1);
2272		1288
2273	*x -= MAP_WIDTH (m);	1289	x -= width;
2274	return (get_map_from_coord (m->tile_map[1], x, y));	1290	return tile_map[1]->xy_find (x, y);
2275	}	1291	}
		1292
2276	if (*y < 0)	1293	if (y < 0)
2277	{	1294	{
2278	if (!m->tile_path[0])	1295	if (!tile_available (0))
2279	return NULL;	1296	return 0;
2280	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
2281	load_and_link_tiled_map (m, 0);
2282		1297
2283	*y += MAP_HEIGHT (m->tile_map[0]);	1298	y += tile_map[0]->height;
2284	return (get_map_from_coord (m->tile_map[0], x, y));	1299	return tile_map[0]->xy_find (x, y);
2285	}
2286	if (*y >= MAP_HEIGHT (m))
2287	{	1300	}
2288	if (!m->tile_path[2])	1301
		1302	if (y >= height)
		1303	{
		1304	if (!tile_available (2))
2289	return NULL;	1305	return 0;
2290	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
2291	load_and_link_tiled_map (m, 2);
2292		1306
2293	*y -= MAP_HEIGHT (m);	1307	y -= height;
2294	return (get_map_from_coord (m->tile_map[2], x, y));	1308	return tile_map[2]->xy_find (x, y);
2295	}	1309	}
2296		1310
2297	/* Simple case - coordinates are within this local	1311	/* Simple case - coordinates are within this local
2298	* map.	1312	* map.
2299	*/	1313	*/
2300
2301	return m;	1314	return this;
2302	}	1315	}
2303		1316
2304	/**	1317	/**
2305	* Return whether map2 is adjacent to map1. If so, store the distance from	1318	* Return whether map2 is adjacent to map1. If so, store the distance from
2306	* map1 to map2 in dx/dy.	1319	* map1 to map2 in dx/dy.
2307	*/	1320	*/
2308	static int	1321	int
2309	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1322	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)
2310	{	1323	{
2311	if (!map1 || !map2)	1324	if (!map1 || !map2)
2312	return 0;	1325	return 0;
2313		1326
		1327	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
		1328	//fix: compare paths instead (this is likely faster, too!)
2314	if (map1 == map2)	1329	if (map1 == map2)
2315	{	1330	{
2316	*dx = 0;	1331	*dx = 0;
2317	*dy = 0;	1332	*dy = 0;
2318
2319	}	1333	}
2320	else if (map1->tile_map[0] == map2)	1334	else if (map1->tile_map[0] == map2)
2321	{ /* up */	1335	{ /* up */
2322	*dx = 0;	1336	*dx = 0;
2323	*dy = -MAP_HEIGHT (map2);	1337	*dy = -map2->height;
2324	}	1338	}
2325	else if (map1->tile_map[1] == map2)	1339	else if (map1->tile_map[1] == map2)
2326	{ /* right */	1340	{ /* right */
2327	*dx = MAP_WIDTH (map1);	1341	*dx = map1->width;
2328	*dy = 0;	1342	*dy = 0;
2329	}	1343	}
2330	else if (map1->tile_map[2] == map2)	1344	else if (map1->tile_map[2] == map2)
2331	{ /* down */	1345	{ /* down */
2332	*dx = 0;	1346	*dx = 0;
2333	*dy = MAP_HEIGHT (map1);	1347	*dy = map1->height;
2334	}	1348	}
2335	else if (map1->tile_map[3] == map2)	1349	else if (map1->tile_map[3] == map2)
2336	{ /* left */	1350	{ /* left */
2337	*dx = -MAP_WIDTH (map2);	1351	*dx = -map2->width;
2338	*dy = 0;	1352	*dy = 0;
2339
2340	}	1353	}
2341	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1354	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)
2342	{ /* up right */	1355	{ /* up right */
2343	*dx = MAP_WIDTH (map1->tile_map[0]);	1356	*dx = map1->tile_map[0]->width;
2344	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1357	*dy = -map1->tile_map[0]->height;
2345	}	1358	}
2346	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1359	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)
2347	{ /* up left */	1360	{ /* up left */
2348	*dx = -MAP_WIDTH (map2);	1361	*dx = -map2->width;
2349	*dy = -MAP_HEIGHT (map1->tile_map[0]);	1362	*dy = -map1->tile_map[0]->height;
2350	}	1363	}
2351	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1364	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)
2352	{ /* right up */	1365	{ /* right up */
2353	*dx = MAP_WIDTH (map1);	1366	*dx = map1->width;
2354	*dy = -MAP_HEIGHT (map2);	1367	*dy = -map2->height;
2355	}	1368	}
2356	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1369	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)
2357	{ /* right down */	1370	{ /* right down */
2358	*dx = MAP_WIDTH (map1);	1371	*dx = map1->width;
2359	*dy = MAP_HEIGHT (map1->tile_map[1]);	1372	*dy = map1->tile_map[1]->height;
2360	}	1373	}
2361	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1374	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)
2362	{ /* down right */	1375	{ /* down right */
2363	*dx = MAP_WIDTH (map1->tile_map[2]);	1376	*dx = map1->tile_map[2]->width;
2364	*dy = MAP_HEIGHT (map1);	1377	*dy = map1->height;
2365	}	1378	}
2366	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1379	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)
2367	{ /* down left */	1380	{ /* down left */
2368	*dx = -MAP_WIDTH (map2);	1381	*dx = -map2->width;
2369	*dy = MAP_HEIGHT (map1);	1382	*dy = map1->height;
2370	}	1383	}
2371	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1384	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)
2372	{ /* left up */	1385	{ /* left up */
2373	*dx = -MAP_WIDTH (map1->tile_map[3]);	1386	*dx = -map1->tile_map[3]->width;
2374	*dy = -MAP_HEIGHT (map2);	1387	*dy = -map2->height;
2375	}	1388	}
2376	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1389	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)
2377	{ /* left down */	1390	{ /* left down */
2378	*dx = -MAP_WIDTH (map1->tile_map[3]);	1391	*dx = -map1->tile_map[3]->width;
2379	*dy = MAP_HEIGHT (map1->tile_map[3]);	1392	*dy = map1->tile_map[3]->height;
2380
2381	}	1393	}
2382	else	1394	else
2383	{ /* not "adjacent" enough */
2384	return 0;	1395	return 0;
2385	}
2386		1396
2387	return 1;	1397	return 1;
		1398	}
		1399
		1400	maptile *
		1401	maptile::xy_load (sint16 &x, sint16 &y)
		1402	{
		1403	maptile *map = xy_find (x, y);
		1404
		1405	if (map)
		1406	map->load_sync ();
		1407
		1408	return map;
		1409	}
		1410
		1411	maptile *
		1412	get_map_from_coord (maptile *m, sint16 *x, sint16 *y)
		1413	{
		1414	return m->xy_load (*x, *y);
2388	}	1415	}
2389		1416
2390	/* From map.c	1417	/* From map.c
2391	* This is used by get_player to determine where the other	1418	* This is used by get_player to determine where the other
2392	* creature is. get_rangevector takes into account map tiling,	1419	* creature is. get_rangevector takes into account map tiling,
2393	* so you just can not look the the map coordinates and get the	1420	* so you just can not look the the map coordinates and get the
2394	* righte value. distance_x/y are distance away, which	1421	* righte value. distance_x/y are distance away, which
2395	* can be negativbe. direction is the crossfire direction scheme	1422	* can be negative. direction is the crossfire direction scheme
2396	* that the creature should head. part is the part of the	1423	* that the creature should head. part is the part of the
2397	* monster that is closest.	1424	* monster that is closest.
2398	*	1425	*
2399	* get_rangevector looks at op1 and op2, and fills in the	1426	* get_rangevector looks at op1 and op2, and fills in the
2400	* structure for op1 to get to op2.	1427	* structure for op1 to get to op2.
…		…
2405	* be unexpected	1432	* be unexpected
2406	*	1433	*
2407	* currently, the only flag supported (0x1) is don't translate for	1434	* currently, the only flag supported (0x1) is don't translate for
2408	* closest body part of 'op1'	1435	* closest body part of 'op1'
2409	*/	1436	*/
2410
2411	void	1437	void
2412	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1438	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)
2413	{	1439	{
2414	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1440	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
2415	{	1441	{
2416	/* be conservative and fill in _some_ data */	1442	/* be conservative and fill in _some_ data */
2417	retval->distance = 100000;	1443	retval->distance = 10000;
2418	retval->distance_x = 32767;	1444	retval->distance_x = 10000;
2419	retval->distance_y = 32767;	1445	retval->distance_y = 10000;
2420	retval->direction = 0;	1446	retval->direction = 0;
2421	retval->part = 0;	1447	retval->part = 0;
2422	}	1448	}
2423	else	1449	else
2424	{	1450	{
…		…
2429		1455
2430	best = op1;	1456	best = op1;
2431	/* If this is multipart, find the closest part now */	1457	/* If this is multipart, find the closest part now */
2432	if (!(flags & 0x1) && op1->more)	1458	if (!(flags & 0x1) && op1->more)
2433	{	1459	{
2434	object *tmp;
2435	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1460	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;
2436		1461
2437	/* we just take the offset of the piece to head to figure	1462	/* we just take the offset of the piece to head to figure
2438	* distance instead of doing all that work above again	1463	* distance instead of doing all that work above again
2439	* since the distance fields we set above are positive in the	1464	* since the distance fields we set above are positive in the
2440	* same axis as is used for multipart objects, the simply arithmetic	1465	* same axis as is used for multipart objects, the simply arithmetic
2441	* below works.	1466	* below works.
2442	*/	1467	*/
2443	for (tmp = op1->more; tmp != NULL; tmp = tmp->more)	1468	for (object *tmp = op1->more; tmp; tmp = tmp->more)
2444	{	1469	{
2445	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1470	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +
2446	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1471	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);
2447	if (tmpi < best_distance)	1472	if (tmpi < best_distance)
2448	{	1473	{
2449	best_distance = tmpi;	1474	best_distance = tmpi;
2450	best = tmp;	1475	best = tmp;
2451	}	1476	}
2452	}	1477	}
		1478
2453	if (best != op1)	1479	if (best != op1)
2454	{	1480	{
2455	retval->distance_x += op1->x - best->x;	1481	retval->distance_x += op1->x - best->x;
2456	retval->distance_y += op1->y - best->y;	1482	retval->distance_y += op1->y - best->y;
2457	}	1483	}
2458	}	1484	}
		1485
2459	retval->part = best;	1486	retval->part = best;
2460	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1487	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2461	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1488	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2462	}	1489	}
2463	}	1490	}
2464		1491
2465	/* this is basically the same as get_rangevector above, but instead of	1492	/* this is basically the same as get_rangevector above, but instead of
…		…
2470	* flags has no meaning for this function at this time - I kept it in to	1497	* flags has no meaning for this function at this time - I kept it in to
2471	* be more consistant with the above function and also in case they are needed	1498	* be more consistant with the above function and also in case they are needed
2472	* for something in the future. Also, since no object is pasted, the best	1499	* for something in the future. Also, since no object is pasted, the best
2473	* field of the rv_vector is set to NULL.	1500	* field of the rv_vector is set to NULL.
2474	*/	1501	*/
2475
2476	void	1502	void
2477	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector * retval, int flags)	1503	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
2478	{	1504	{
2479	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1505	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
2480	{	1506	{
2481	/* be conservative and fill in _some_ data */	1507	/* be conservative and fill in _some_ data */
2482	retval->distance = 100000;	1508	retval->distance = 100000;
…		…
2488	else	1514	else
2489	{	1515	{
2490	retval->distance_x += op2->x - x;	1516	retval->distance_x += op2->x - x;
2491	retval->distance_y += op2->y - y;	1517	retval->distance_y += op2->y - y;
2492		1518
2493	retval->part = NULL;	1519	retval->part = 0;
2494	retval->distance = isqrt (retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y);	1520	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
2495	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1521	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);
2496	}	1522	}
2497	}	1523	}
2498		1524
2499	/* Returns true of op1 and op2 are effectively on the same map	1525	/* Returns true of op1 and op2 are effectively on the same map
2500	* (as related to map tiling). Note that this looks for a path from	1526	* (as related to map tiling). Note that this looks for a path from
2501	* op1 to op2, so if the tiled maps are assymetric and op2 has a path	1527	* op1 to op2, so if the tiled maps are asymetric and op2 has a path
2502	* to op1, this will still return false.	1528	* to op1, this will still return false.
2503	* Note we only look one map out to keep the processing simple	1529	* Note we only look one map out to keep the processing simple
2504	* and efficient. This could probably be a macro.	1530	* and efficient. This could probably be a macro.
2505	* MSW 2001-08-05	1531	* MSW 2001-08-05
2506	*/	1532	*/
…		…
2509	{	1535	{
2510	int dx, dy;	1536	int dx, dy;
2511		1537
2512	return adjacent_map (op1->map, op2->map, &dx, &dy);	1538	return adjacent_map (op1->map, op2->map, &dx, &dy);
2513	}	1539	}
		1540
		1541	//-GPL
		1542
		1543	object *
		1544	maptile::insert (object *op, int x, int y, object *originator, int flags)
		1545	{
		1546	return insert_ob_in_map_at (op, this, originator, flags, x, y);
		1547	}
		1548
		1549	region *
		1550	maptile::region (int x, int y) const
		1551	{
		1552	if (regions
		1553	&& regionmap
		1554	&& !OUT_OF_REAL_MAP (this, x, y))
		1555	if (struct region *reg = regionmap [regions [y * width + x]])
		1556	return reg;
		1557
		1558	if (default_region)
		1559	return default_region;
		1560
		1561	return ::region::default_region ();
		1562	}
		1563
		1564	//+GPL
		1565
		1566	/* picks a random object from a style map.
		1567	*/
		1568	object *
		1569	maptile::pick_random_object (rand_gen &gen) const
		1570	{
		1571	/* while returning a null object will result in a crash, that
		1572	* is actually preferable to an infinite loop. That is because
		1573	* most servers will automatically restart in case of crash.
		1574	* Change the logic on getting the random space - shouldn't make
		1575	* any difference, but this seems clearer to me.
		1576	*/
		1577	for (int i = 1000; --i;)
		1578	{
		1579	object *pick = at (gen (width), gen (height)).bot;
		1580
		1581	// do not prefer big monsters just because they are big.
		1582	if (pick && pick->is_head ())
		1583	return pick->head_ ();
		1584	}
		1585
		1586	// instead of crashing in the unlikely(?) case, try to return *something*
		1587	return archetype::find (shstr_bug);
		1588	}
		1589
		1590	//-GPL
		1591
		1592	void
		1593	maptile::play_sound (faceidx sound, int x, int y) const
		1594	{
		1595	if (!sound)
		1596	return;
		1597
		1598	for_all_players_on_map (pl, this)
		1599	if (client *ns = pl->ns)
		1600	{
		1601	int dx = x - pl->ob->x;
		1602	int dy = y - pl->ob->y;
		1603
		1604	int distance = idistance (dx, dy);
		1605
		1606	if (distance <= MAX_SOUND_DISTANCE)
		1607	ns->play_sound (sound, dx, dy);
		1608	}
		1609	}
		1610
		1611	void
		1612	maptile::say_msg (const char *msg, int x, int y) const
		1613	{
		1614	for_all_players (pl)
		1615	if (client *ns = pl->ns)
		1616	{
		1617	int dx = x - pl->ob->x;
		1618	int dy = y - pl->ob->y;
		1619
		1620	int distance = idistance (dx, dy);
		1621
		1622	if (distance <= MAX_SOUND_DISTANCE)
		1623	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
		1624	}
		1625	}
		1626
		1627	static void
		1628	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1629	{
		1630	// clip to map to the left
		1631	if (x0 < 0)
		1632	{
		1633	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1634	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1635
		1636	if (x1 < 0) // entirely to the left
		1637	return;
		1638
		1639	x0 = 0;
		1640	}
		1641
		1642	// clip to map to the right
		1643	if (x1 > m->width)
		1644	{
		1645	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1646	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1647
		1648	if (x0 > m->width) // entirely to the right
		1649	return;
		1650
		1651	x1 = m->width;
		1652	}
		1653
		1654	// clip to map above
		1655	if (y0 < 0)
		1656	{
		1657	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1658	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1659
		1660	if (y1 < 0) // entirely above
		1661	return;
		1662
		1663	y0 = 0;
		1664	}
		1665
		1666	// clip to map below
		1667	if (y1 > m->height)
		1668	{
		1669	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1670	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1671
		1672	if (y0 > m->height) // entirely below
		1673	return;
		1674
		1675	y1 = m->height;
		1676	}
		1677
		1678	// if we get here, the rect is within the current map
		1679	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1680
		1681	r->m = m;
		1682	r->x0 = x0;
		1683	r->y0 = y0;
		1684	r->x1 = x1;
		1685	r->y1 = y1;
		1686	r->dx = dx;
		1687	r->dy = dy;
		1688	}
		1689
		1690	maprect *
		1691	maptile::split_to_tiles (int x0, int y0, int x1, int y1)
		1692	{
		1693	static dynbuf buf (sizeof (maprect) * 8, sizeof (maprect) * 8);
		1694	buf.clear ();
		1695
		1696	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1697
		1698	// add end marker
		1699	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1700	r->m = 0;
		1701
		1702	return (maprect *)buf.linearise ();
		1703	}
		1704

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