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/cvs/deliantra/server/common/object.C

Comparing deliantra/server/common/object.C (file contents):
Revision 1.25 by root, Mon Sep 11 01:16:20 2006 UTC vs.
Revision 1.95 by root, Wed Dec 27 05:42:08 2006 UTC

1
2	/*
3	* static char *rcsid_object_c =
4	* "$Id: object.C,v 1.25 2006/09/11 01:16:20 root Exp $";
5	*/
6
7	/*	1	/*
8	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
9		3
10	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
11	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
22		16
23	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
24	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
25	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26		20
27	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
28	*/	22	*/
29		23
30	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
31	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
32	variable. */	26	variable. */
33	#include <global.h>	27	#include <global.h>
34	#ifndef WIN32 /* ---win32 exclude headers */
35	# include <stdio.h>	28	#include <stdio.h>
36	# include <sys/types.h>	29	#include <sys/types.h>
37	# include <sys/uio.h>	30	#include <sys/uio.h>
38	#endif /* win32 */
39	#include <object.h>	31	#include <object.h>
40	#include <funcpoint.h>	32	#include <funcpoint.h>
41	#include <skills.h>
42	#include <loader.h>	33	#include <loader.h>
		34
		35	#include <bitset>
		36
43	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
		38	static UUID uuid;
		39	const uint64 UUID_SKIP = 1<<19;
44		40
45	object *objects; /* Pointer to the list of used objects */
46	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
47		42
48	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
49	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	};	45	};
…		…
57	int freedir[SIZEOFFREE] = {	52	int freedir[SIZEOFFREE] = {
58	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
59	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
60	};	55	};
61		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
		133
62	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
63	static int	135	static int
64	compare_ob_value_lists_one (const object *wants, const object *has)	136	compare_ob_value_lists_one (const object *wants, const object *has)
65	{	137	{
66	key_value *wants_field;	138	key_value *wants_field;
…		…
69	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
70	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
71	*/	143	*/
72		144
73	/* For each field in wants, */	145	/* For each field in wants, */
74	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
75	{	147	{
76	key_value *has_field;	148	key_value *has_field;
77		149
78	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
79	has_field = get_ob_key_link (has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
…		…
113	*	185	*
114	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
115	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
116	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
117	*	189	*
118	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
119	*	191	*
120	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
121	* check weight	193	* check weight
122	*/	194	*/
123		195
124	bool object::can_merge (object *ob1, object *ob2)	196	bool object::can_merge_slow (object *ob1, object *ob2)
125	{	197	{
126	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
127	if ((ob1 == ob2) || (ob1->type != ob2->type))	199	if (ob1 == ob2
		200	|| ob1->type != ob2->type
		201	|| ob1->speed != ob2->speed
		202	|| ob1->value != ob2->value
		203	|| ob1->name != ob2->name)
128	return 0;	204	return 0;
129		205
130	if (ob1->speed != ob2->speed)	206	//TODO: this ain't working well, use nicer and correct overflow check
131	return 0;
132
133	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
134	* value could not be stored in a sint32 (which unfortunately sometimes is	208	* value could not be stored in a sint32 (which unfortunately sometimes is
135	* used to store nrof).	209	* used to store nrof).
136	*/	210	*/
137	if (ob1->nrof + ob2->nrof >= 1UL << 31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
147	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
148		222
149	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
150	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
151		225
152		226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
153	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
154	* being locked in inventory should prevent merging.
155	* 0x4 in flags3 is CLIENT_SENT
156	*/
157	if ((ob1->arch != ob2->arch) ||
158	(ob1->flags[0] != ob2->flags[0]) ||
159	(ob1->flags[1] != ob2->flags[1]) ||
160	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
161	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
162	(ob1->name != ob2->name) ||	228	|| ob1->name != ob2->name
163	(ob1->title != ob2->title) ||	229	|| ob1->title != ob2->title
164	(ob1->msg != ob2->msg) ||	230	|| ob1->msg != ob2->msg
165	(ob1->weight != ob2->weight) ||	231	|| ob1->weight != ob2->weight
166	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
167	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
168	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
169	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
170	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
171	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
172	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
173	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
174	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
175	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
176	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
177	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
178	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
179	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
180	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
181	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
182	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	248	|| ob1->move_off != ob2->move_off
		249	|| ob1->move_slow != ob2->move_slow
		250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
183	return 0;	251	return 0;
184		252
185	/* This is really a spellbook check - really, we should	253	/* This is really a spellbook check - really, we should
186	* check all objects in the inventory.	254	* check all objects in the inventory.
187	*/	255	*/
…		…
190	/* if one object has inventory but the other doesn't, not equiv */	258	/* if one object has inventory but the other doesn't, not equiv */
191	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
192	return 0;	260	return 0;
193		261
194	/* Now check to see if the two inventory objects could merge */	262	/* Now check to see if the two inventory objects could merge */
195	if (!CAN_MERGE (ob1->inv, ob2->inv))	263	if (!object::can_merge (ob1->inv, ob2->inv))
196	return 0;	264	return 0;
197		265
198	/* inventory ok - still need to check rest of this object to see	266	/* inventory ok - still need to check rest of this object to see
199	* if it is valid.	267	* if it is valid.
200	*/	268	*/
…		…
214	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
215	return 0;	283	return 0;
216		284
217	switch (ob1->type)	285	switch (ob1->type)
218	{	286	{
219	case SCROLL:	287	case SCROLL:
220	if (ob1->level != ob2->level)	288	if (ob1->level != ob2->level)
221	return 0;	289	return 0;
222	break;	290	break;
223	}	291	}
224		292
225	if (ob1->key_values != NULL || ob2->key_values != NULL)	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
226	{	294	{
227	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
…		…
249	/*	317	/*
250	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
251	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
252	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
253	*/	321	*/
254	signed long	322	long
255	sum_weight (object *op)	323	sum_weight (object *op)
256	{	324	{
257	signed long sum;	325	long sum;
258	object *inv;	326	object *inv;
259		327
260	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
261	{	329	{
262	if (inv->inv)	330	if (inv->inv)
263	sum_weight (inv);	331	sum_weight (inv);
264	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
265	}	333	}
		334
266	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
267	sum = (sum * (100 - op->stats.Str)) / 100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
268	if (op->carrying != sum)	338	if (op->carrying != sum)
269	op->carrying = sum;	339	op->carrying = sum;
		340
270	return sum;	341	return sum;
271	}	342	}
272		343
273	/**	344	/**
274	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
…		…
281	op = op->env;	352	op = op->env;
282	return op;	353	return op;
283	}	354	}
284		355
285	/*	356	/*
286	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
287	* a better check. We basically keeping traversing up until we can't
288	* or find a player.
289	*/
290
291	object *
292	is_player_inv (object *op)
293	{
294	for (; op != NULL && op->type != PLAYER; op = op->env)
295	if (op->env == op)
296	op->env = NULL;
297	return op;
298	}
299
300	/*
301	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
302	* Some error messages.	358	* Some error messages.
303	* The result of the dump is stored in the static global errmsg array.	359	* The result of the dump is stored in the static global errmsg array.
304	*/	360	*/
305		361
306	void	362	char *
307	dump_object2 (object *op)
308	{
309	errmsg[0] = 0;
310	return;
311	//TODO//D#d#
312	#if 0
313	char *cp;
314
315	/* object *tmp;*/
316
317	if (op->arch != NULL)
318	{
319	strcat (errmsg, "arch ");
320	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
321	strcat (errmsg, "\n");
322	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
323	strcat (errmsg, cp);
324	# if 0
325	/* Don't dump player diffs - they are too long, mostly meaningless, and
326	* will overflow the buffer.
327	* Changed so that we don't dump inventory either. This may
328	* also overflow the buffer.
329	*/
330	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
331	strcat (errmsg, cp);
332	for (tmp = op->inv; tmp; tmp = tmp->below)
333	dump_object2 (tmp);
334	# endif
335	strcat (errmsg, "end\n");
336	}
337	else
338	{
339	strcat (errmsg, "Object ");
340	if (op->name == NULL)
341	strcat (errmsg, "(null)");
342	else
343	strcat (errmsg, op->name);
344	strcat (errmsg, "\n");
345	# if 0
346	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
347	strcat (errmsg, cp);
348	for (tmp = op->inv; tmp; tmp = tmp->below)
349	dump_object2 (tmp);
350	# endif
351	strcat (errmsg, "end\n");
352	}
353	#endif
354	}
355
356	/*
357	* Dumps an object. Returns output in the static global errmsg array.
358	*/
359
360	void
361	dump_object (object *op)	363	dump_object (object *op)
362	{	364	{
363	if (op == NULL)	365	if (!op)
364	{	366	return strdup ("[NULLOBJ]");
365	strcpy (errmsg, "[NULL pointer]");
366	return;
367	}
368	errmsg[0] = '\0';
369	dump_object2 (op);
370	}
371		367
372	void	368	object_freezer freezer;
373	dump_all_objects (void)	369	save_object (freezer, op, 1);
374	{	370	return freezer.as_string ();
375	object *op;
376
377	for (op = objects; op != NULL; op = op->next)
378	{
379	dump_object (op);
380	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
381	}
382	}	371	}
383		372
384	/*	373	/*
385	* get_nearest_part(multi-object, object 2) returns the part of the	374	* get_nearest_part(multi-object, object 2) returns the part of the
386	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
…		…
406	*/	395	*/
407		396
408	object *	397	object *
409	find_object (tag_t i)	398	find_object (tag_t i)
410	{	399	{
411	object *op;	400	for (object *op = object::first; op; op = op->next)
412
413	for (op = objects; op != NULL; op = op->next)
414	if (op->count == i)	401	if (op->count == i)
415	break;	402	return op;
		403
416	return op;	404	return 0;
417	}	405	}
418		406
419	/*	407	/*
420	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
421	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
…		…
423	*/	411	*/
424		412
425	object *	413	object *
426	find_object_name (const char *str)	414	find_object_name (const char *str)
427	{	415	{
428	const char *name = shstr::find (str);	416	shstr_cmp str_ (str);
429	object *op;	417	object *op;
430		418
431	for (op = objects; op != NULL; op = op->next)	419	for (op = object::first; op != NULL; op = op->next)
432	if (&op->name == name)	420	if (op->name == str_)
433	break;	421	break;
434		422
435	return op;	423	return op;
436	}	424	}
437		425
…		…
440	{	428	{
441	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
442	}	430	}
443		431
444	/*	432	/*
445	* Returns the object which this object marks as being the owner.
446	* A id-scheme is used to avoid pointing to objects which have been
447	* freed and are now reused. If this is detected, the owner is
448	* set to NULL, and NULL is returned.
449	* Changed 2004-02-12 - if the player is setting at the play again
450	* prompt, he is removed, and we don't want to treat him as an owner of
451	* anything, so check removed flag. I don't expect that this should break
452	* anything - once an object is removed, it is basically dead anyways.
453	*/
454
455	object *
456	get_owner (object *op)
457	{
458	if (op->owner == NULL)
459	return NULL;
460
461	if (!QUERY_FLAG (op->owner, FLAG_FREED) && !QUERY_FLAG (op->owner, FLAG_REMOVED) && op->owner->count == op->ownercount)
462	return op->owner;
463
464	op->owner = NULL;
465	op->ownercount = 0;
466	return NULL;
467	}
468
469	void
470	clear_owner (object *op)
471	{
472	if (!op)
473	return;
474
475	if (op->owner && op->ownercount == op->owner->count)
476	op->owner->refcount--;
477
478	op->owner = NULL;
479	op->ownercount = 0;
480	}
481
482	/*
483	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
484	* skill and experience objects.	434	* skill and experience objects.
485	*/	435	*/
486	void	436	void
487	set_owner (object *op, object *owner)	437	object::set_owner (object *owner)
488	{	438	{
489	if (owner == NULL || op == NULL)	439	if (!owner)
490	return;	440	return;
491		441
492	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
493	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* Add a check for ownercounts in here, as I got into an endless loop
494	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
495	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
496	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
497	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
498	*/	448	*/
499	while (owner->owner && owner != owner->owner && owner->ownercount == owner->owner->count)	449	while (owner->owner)
500	owner = owner->owner;	450	owner = owner->owner;
501		451
502	/* IF the owner still has an owner, we did not resolve to a final owner.
503	* so lets not add to that.
504	*/
505	if (owner->owner)
506	return;
507
508	op->owner = owner;	452	this->owner = owner;
509
510	op->ownercount = owner->count;
511	owner->refcount++;
512	}
513
514	/* Set the owner to clone's current owner and set the skill and experience
515	* objects to clone's objects (typically those objects that where the owner's
516	* current skill and experience objects at the time when clone's owner was
517	* set - not the owner's current skill and experience objects).
518	*
519	* Use this function if player created an object (e.g. fire bullet, swarm
520	* spell), and this object creates further objects whose kills should be
521	* accounted for the player's original skill, even if player has changed
522	* skills meanwhile.
523	*/
524	void
525	copy_owner (object *op, object *clone)
526	{
527	object *owner = get_owner (clone);
528
529	if (owner == NULL)
530	{
531	/* players don't have owners - they own themselves. Update
532	* as appropriate.
533	*/
534	if (clone->type == PLAYER)
535	owner = clone;
536	else
537	return;
538	}
539
540	set_owner (op, owner);
541	}	453	}
542		454
543	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
544	* refcounts and freeing the links.	456	* refcounts and freeing the links.
545	*/	457	*/
…		…
555	}	467	}
556		468
557	op->key_values = 0;	469	op->key_values = 0;
558	}	470	}
559		471
560	void object::clear ()
561	{
562	attachable_base::clear ();
563
564	free_key_values (this);
565
566	clear_owner (this);
567
568	name = 0;
569	name_pl = 0;
570	title = 0;
571	race = 0;
572	slaying = 0;
573	skill = 0;
574	msg = 0;
575	lore = 0;
576	custom_name = 0;
577	materialname = 0;
578
579	memset (static_cast < object_pod * >(this), 0, sizeof (object_pod));
580
581	SET_FLAG (this, FLAG_REMOVED);
582	}
583
584	void object::clone (object *destination)
585	{
586	*(object_copy *) destination = *this;
587	*(object_pod *) destination = *this;
588
589	if (self || cb)
590	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
591	}
592
593	/*	472	/*
594	* clear_object() frees everything allocated by an object, and also
595	* clears all variables and flags to default settings.
596	*/
597
598	void
599	clear_object (object *op)
600	{
601	op->clear ();
602
603	op->contr = NULL;
604	op->below = NULL;
605	op->above = NULL;
606	op->inv = NULL;
607	op->container = NULL;
608	op->env = NULL;
609	op->more = NULL;
610	op->head = NULL;
611	op->map = NULL;
612	op->refcount = 0;
613	op->active_next = NULL;
614	op->active_prev = NULL;
615	/* What is not cleared is next, prev, and count */
616
617	op->expmul = 1.0;
618	op->face = blank_face;
619	op->attacked_by_count = -1;
620
621	if (settings.casting_time)
622	op->casting_time = -1;
623	}
624
625	/*
626	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
627	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
628	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
629	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	476	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
630	* if the first object is freed, the pointers in the new object	477	* if the first object is freed, the pointers in the new object
631	* will point at garbage.	478	* will point at garbage.
632	*/	479	*/
633
634	void	480	void
635	copy_object (object *op2, object *op)	481	object::copy_to (object *dst)
636	{	482	{
637	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
638	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
639		485
640	op2->clone (op);	486	*(object_copy *)dst = *this;
641		487
642	if (is_freed)	488	if (is_freed)
643	SET_FLAG (op, FLAG_FREED);	489	SET_FLAG (dst, FLAG_FREED);
		490
644	if (is_removed)	491	if (is_removed)
645	SET_FLAG (op, FLAG_REMOVED);	492	SET_FLAG (dst, FLAG_REMOVED);
646		493
647	if (op2->speed < 0)	494	if (speed < 0)
648	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
649		496
650	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
651	if (op2->key_values)	498	if (key_values)
652	{	499	{
653	key_value *tail = 0;	500	key_value *tail = 0;
654	key_value *i;	501	key_value *i;
655		502
656	op->key_values = 0;	503	dst->key_values = 0;
657		504
658	for (i = op2->key_values; i; i = i->next)	505	for (i = key_values; i; i = i->next)
659	{	506	{
660	key_value *new_link = new key_value;	507	key_value *new_link = new key_value;
661		508
662	new_link->next = 0;	509	new_link->next = 0;
663	new_link->key = i->key;	510	new_link->key = i->key;
664	new_link->value = i->value;	511	new_link->value = i->value;
665		512
666	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
667	if (!op->key_values)	514	if (!dst->key_values)
668	{	515	{
669	op->key_values = new_link;	516	dst->key_values = new_link;
670	tail = new_link;	517	tail = new_link;
671	}	518	}
672	else	519	else
673	{	520	{
674	tail->next = new_link;	521	tail->next = new_link;
675	tail = new_link;	522	tail = new_link;
676	}	523	}
677	}	524	}
678	}	525	}
679		526
680	update_ob_speed (op);	527	dst->set_speed (dst->speed);
		528	}
		529
		530	object *
		531	object::clone ()
		532	{
		533	object *neu = create ();
		534	copy_to (neu);
		535	return neu;
681	}	536	}
682		537
683	/*	538	/*
684	* If an object with the IS_TURNABLE() flag needs to be turned due	539	* If an object with the IS_TURNABLE() flag needs to be turned due
685	* to the closest player being on the other side, this function can	540	* to the closest player being on the other side, this function can
…		…
698	/*	553	/*
699	* Updates the speed of an object. If the speed changes from 0 to another	554	* Updates the speed of an object. If the speed changes from 0 to another
700	* value, or vice versa, then add/remove the object from the active list.	555	* value, or vice versa, then add/remove the object from the active list.
701	* This function needs to be called whenever the speed of an object changes.	556	* This function needs to be called whenever the speed of an object changes.
702	*/	557	*/
703
704	void	558	void
705	update_ob_speed (object *op)	559	object::set_speed (float speed)
706	{	560	{
707	extern int arch_init;	561	extern int arch_init;
708		562
709	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
710	* since they never really need to be updated.	564	* since they never really need to be updated.
711	*/	565	*/
712		566	if (flag [FLAG_FREED] && speed)
713	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
714	{	567	{
715	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	568	LOG (llevError, "Object %s is freed but has speed.\n", &name);
716	#ifdef MANY_CORES
717	abort ();
718	#else
719	op->speed = 0;	569	speed = 0;
720	#endif
721	}	570	}
		571
		572	this->speed = speed;
		573
722	if (arch_init)	574	if (arch_init)
723	{
724	return;	575	return;
725	}	576
726	if (FABS (op->speed) > MIN_ACTIVE_SPEED)	577	if (FABS (speed) > MIN_ACTIVE_SPEED)
727	{	578	{
728	/* If already on active list, don't do anything */	579	/* If already on active list, don't do anything */
729	if (op->active_next || op->active_prev || op == active_objects)	580	if (active_next || active_prev || this == active_objects)
730	return;	581	return;
731		582
732	/* process_events() expects us to insert the object at the beginning	583	/* process_events() expects us to insert the object at the beginning
733	* of the list. */	584	* of the list. */
734	op->active_next = active_objects;	585	active_next = active_objects;
		586
735	if (op->active_next != NULL)	587	if (active_next)
736	op->active_next->active_prev = op;	588	active_next->active_prev = this;
		589
737	active_objects = op;	590	active_objects = this;
738	}	591	}
739	else	592	else
740	{	593	{
741	/* If not on the active list, nothing needs to be done */	594	/* If not on the active list, nothing needs to be done */
742	if (!op->active_next && !op->active_prev && op != active_objects)	595	if (!active_next && !active_prev && this != active_objects)
743	return;	596	return;
744		597
745	if (op->active_prev == NULL)	598	if (!active_prev)
746	{	599	{
747	active_objects = op->active_next;	600	active_objects = active_next;
		601
748	if (op->active_next != NULL)	602	if (active_next)
749	op->active_next->active_prev = NULL;	603	active_next->active_prev = 0;
750	}	604	}
751	else	605	else
752	{	606	{
753	op->active_prev->active_next = op->active_next;	607	active_prev->active_next = active_next;
		608
754	if (op->active_next)	609	if (active_next)
755	op->active_next->active_prev = op->active_prev;	610	active_next->active_prev = active_prev;
756	}	611	}
		612
757	op->active_next = NULL;	613	active_next = 0;
758	op->active_prev = NULL;	614	active_prev = 0;
759	}	615	}
760	}	616	}
761		617
762	/* This function removes object 'op' from the list of active	618	/* This function removes object 'op' from the list of active
763	* objects.	619	* objects.
…		…
789	op->active_next = NULL;	645	op->active_next = NULL;
790	op->active_prev = NULL;	646	op->active_prev = NULL;
791	}	647	}
792		648
793	/*	649	/*
794	* update_object() updates the array which represents the map.	650	* update_object() updates the the map.
795	* It takes into account invisible objects (and represent squares covered	651	* It takes into account invisible objects (and represent squares covered
796	* by invisible objects by whatever is below them (unless it's another	652	* by invisible objects by whatever is below them (unless it's another
797	* invisible object, etc...)	653	* invisible object, etc...)
798	* If the object being updated is beneath a player, the look-window	654	* If the object being updated is beneath a player, the look-window
799	* of that player is updated (this might be a suboptimal way of	655	* of that player is updated (this might be a suboptimal way of
800	* updating that window, though, since update_object() is called _often_)	656	* updating that window, though, since update_object() is called _often_)
801	*	657	*
802	* action is a hint of what the caller believes need to be done.	658	* action is a hint of what the caller believes need to be done.
803	* For example, if the only thing that has changed is the face (due to
804	* an animation), we don't need to call update_position until that actually
805	* comes into view of a player. OTOH, many other things, like addition/removal
806	* of walls or living creatures may need us to update the flags now.
807	* current action are:	659	* current action are:
808	* UP_OBJ_INSERT: op was inserted	660	* UP_OBJ_INSERT: op was inserted
809	* UP_OBJ_REMOVE: op was removed	661	* UP_OBJ_REMOVE: op was removed
810	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	662	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
811	* as that is easier than trying to look at what may have changed.	663	* as that is easier than trying to look at what may have changed.
812	* UP_OBJ_FACE: only the objects face has changed.	664	* UP_OBJ_FACE: only the objects face has changed.
813	*/	665	*/
814
815	void	666	void
816	update_object (object *op, int action)	667	update_object (object *op, int action)
817	{	668	{
818	int update_now = 0, flags;
819	MoveType move_on, move_off, move_block, move_slow;	669	MoveType move_on, move_off, move_block, move_slow;
820		670
821	if (op == NULL)	671	if (op == NULL)
822	{	672	{
823	/* this should never happen */	673	/* this should never happen */
824	LOG (llevDebug, "update_object() called for NULL object.\n");	674	LOG (llevDebug, "update_object() called for NULL object.\n");
825	return;	675	return;
826	}	676	}
827		677
828	if (op->env != NULL)	678	if (op->env)
829	{	679	{
830	/* Animation is currently handled by client, so nothing	680	/* Animation is currently handled by client, so nothing
831	* to do in this case.	681	* to do in this case.
832	*/	682	*/
833	return;	683	return;
…		…
838	*/	688	*/
839	if (!op->map || op->map->in_memory == MAP_SAVING)	689	if (!op->map || op->map->in_memory == MAP_SAVING)
840	return;	690	return;
841		691
842	/* make sure the object is within map boundaries */	692	/* make sure the object is within map boundaries */
843	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	693	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
844	{	694	{
845	LOG (llevError, "update_object() called for object out of map!\n");	695	LOG (llevError, "update_object() called for object out of map!\n");
846	#ifdef MANY_CORES	696	#ifdef MANY_CORES
847	abort ();	697	abort ();
848	#endif	698	#endif
849	return;	699	return;
850	}	700	}
851		701
852	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	702	mapspace &m = op->ms ();
853	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
854	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
855	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
856	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
857	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
858		703
		704	if (m.flags_ & P_NEED_UPDATE)
		705	/* nop */;
859	if (action == UP_OBJ_INSERT)	706	else if (action == UP_OBJ_INSERT)
860	{	707	{
		708	// this is likely overkill, TODO: revisit (schmorp)
861	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	709	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
862	update_now = 1;
863
864	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	710	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
865	update_now = 1;	711	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
866		712	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		713	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
867	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	714	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
868	update_now = 1;
869
870	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
871	update_now = 1;
872
873	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
874	update_now = 1;
875
876	if ((move_on | op->move_on) != move_on)	715	|| (m.move_on | op->move_on ) != m.move_on
877	update_now = 1;
878
879	if ((move_off | op->move_off) != move_off)	716	|| (m.move_off | op->move_off ) != m.move_off
880	update_now = 1;	717	|| (m.move_slow | op->move_slow) != m.move_slow
881
882	/* This isn't perfect, but I don't expect a lot of objects to	718	/* This isn't perfect, but I don't expect a lot of objects to
883	* to have move_allow right now.	719	* to have move_allow right now.
884	*/	720	*/
885	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	721	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
886	update_now = 1;	722	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
887		723	m.flags_ = P_NEED_UPDATE;
888	if ((move_slow | op->move_slow) != move_slow)
889	update_now = 1;
890	}	724	}
891	/* if the object is being removed, we can't make intelligent	725	/* if the object is being removed, we can't make intelligent
892	* decisions, because remove_ob can't really pass the object	726	* decisions, because remove_ob can't really pass the object
893	* that is being removed.	727	* that is being removed.
894	*/	728	*/
895	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	729	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
896	{	730	m.flags_ = P_NEED_UPDATE;
897	update_now = 1;
898	}
899	else if (action == UP_OBJ_FACE)	731	else if (action == UP_OBJ_FACE)
900	{
901	/* Nothing to do for that case */	732	/* Nothing to do for that case */ ;
902	}
903	else	733	else
904	{
905	LOG (llevError, "update_object called with invalid action: %d\n", action);	734	LOG (llevError, "update_object called with invalid action: %d\n", action);
906	}
907		735
908	if (update_now)
909	{
910	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
911	update_position (op->map, op->x, op->y);
912	}
913
914	if (op->more != NULL)	736	if (op->more)
915	update_object (op->more, action);	737	update_object (op->more, action);
916	}	738	}
917		739
918	static unordered_vector<object *> mortals;	740	object::vector object::objects; // not yet used
919	static std::vector<object *> freed;	741	object *object::first;
920
921	void object::free_mortals ()
922	{
923	for (unordered_vector<object *>::iterator i = mortals.begin (); i != mortals.end (); )
924	if (!(*i)->refcount)
925	{
926	freed.push_back (*i);
927	mortals.erase (i);
928	}
929	else
930	++i;
931	}
932		742
933	object::object ()	743	object::object ()
934	{	744	{
935	SET_FLAG (this, FLAG_REMOVED);	745	SET_FLAG (this, FLAG_REMOVED);
936		746
937	expmul = 1.0;	747	expmul = 1.0;
938	face = blank_face;	748	face = blank_face;
939	attacked_by_count = -1;
940	}	749	}
941		750
942	object::~object ()	751	object::~object ()
943	{	752	{
944	free_key_values (this);	753	free_key_values (this);
945	}	754	}
946		755
947	void object::link ()	756	void object::link ()
948	{	757	{
949	count = ++ob_count;	758	count = ++ob_count;
		759	uuid = gen_uuid ();
950		760
951	prev = 0;	761	prev = 0;
952	next = objects;	762	next = object::first;
953		763
954	if (objects)	764	if (object::first)
955	objects->prev = this;	765	object::first->prev = this;
956		766
957	objects = this;	767	object::first = this;
958	}	768	}
959		769
960	void object::unlink ()	770	void object::unlink ()
961	{	771	{
962	count = 0;	772	if (this == object::first)
		773	object::first = next;
963		774
964	/* Remove this object from the list of used objects */	775	/* Remove this object from the list of used objects */
965	if (prev)
966	{
967	prev->next = next;	776	if (prev) prev->next = next;
		777	if (next) next->prev = prev;
		778
968	prev = 0;	779	prev = 0;
969	}
970
971	if (next)
972	{
973	next->prev = prev;
974	next = 0;	780	next = 0;
		781	}
		782
		783	/*
		784	* Remove and free all objects in the inventory of the given object.
		785	* object.c ?
		786	*/
		787	void
		788	object::destroy_inv (bool drop_to_ground)
		789	{
		790	// need to check first, because the checks below might segfault
		791	// as we might be on an invalid mapspace and crossfire code
		792	// is too buggy to ensure that the inventory is empty.
		793	// corollary: if you create arrows etc. with stuff in tis inventory,
		794	// cf will crash below with off-map x and y
		795	if (!inv)
		796	return;
		797
		798	/* Only if the space blocks everything do we not process -
		799	* if some form of movement is allowed, let objects
		800	* drop on that space.
		801	*/
		802	if (!drop_to_ground
		803	|| !map
		804	|| map->in_memory != MAP_IN_MEMORY
		805	|| ms ().move_block == MOVE_ALL)
975	}	806	{
		807	while (inv)
		808	{
		809	inv->destroy_inv (drop_to_ground);
		810	inv->destroy ();
		811	}
		812	}
		813	else
		814	{ /* Put objects in inventory onto this space */
		815	while (inv)
		816	{
		817	object *op = inv;
976		818
977	if (this == objects)	819	if (op->flag [FLAG_STARTEQUIP]
978	objects = next;	820	|| op->flag [FLAG_NO_DROP]
		821	|| op->type == RUNE
		822	|| op->type == TRAP
		823	|| op->flag [FLAG_IS_A_TEMPLATE])
		824	op->destroy ();
		825	else
		826	map->insert (op, x, y);
		827	}
		828	}
979	}	829	}
980		830
981	object *object::create ()	831	object *object::create ()
982	{	832	{
983	object *op;
984
985	if (freed.empty ())
986	op = new object;	833	object *op = new object;
987	else
988	{
989	// highly annoying, but the only way to get it stable right now
990	op = freed.back (); freed.pop_back ();
991	op->~object ();
992	new ((void *)op) object;
993	}
994
995	op->link ();	834	op->link ();
996	return op;	835	return op;
997	}	836	}
998		837
999	/*	838	void
1000	* free_object() frees everything allocated by an object, removes	839	object::do_destroy ()
1001	* it from the list of used objects, and puts it on the list of
1002	* free objects. The IS_FREED() flag is set in the object.
1003	* The object must have been removed by remove_ob() first for
1004	* this function to succeed.
1005	*
1006	* If free_inventory is set, free inventory as well. Else drop items in
1007	* inventory to the ground.
1008	*/
1009	void object::free (bool free_inventory)
1010	{	840	{
1011	if (!QUERY_FLAG (this, FLAG_REMOVED))	841	if (flag [FLAG_IS_LINKED])
1012	{	842	remove_button_link (this);
1013	LOG (llevDebug, "Free object called with non removed object\n");
1014	dump_object (this);
1015	#ifdef MANY_CORES
1016	abort ();
1017	#endif
1018	}
1019		843
1020	if (QUERY_FLAG (this, FLAG_FRIENDLY))	844	if (flag [FLAG_FRIENDLY])
1021	{
1022	LOG (llevMonster, "Warning: tried to free friendly object.\n");
1023	remove_friendly_object (this);	845	remove_friendly_object (this);
1024	}
1025		846
1026	if (QUERY_FLAG (this, FLAG_FREED))	847	if (!flag [FLAG_REMOVED])
1027	{	848	remove ();
1028	dump_object (this);	849
1029	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	850	if (flag [FLAG_FREED])
1030	return;	851	return;
		852
		853	set_speed (0);
		854
		855	flag [FLAG_FREED] = 1;
		856
		857	attachable::do_destroy ();
		858
		859	destroy_inv (true);
		860	unlink ();
		861
		862	// hack to ensure that freed objects still have a valid map
		863	{
		864	static maptile *freed_map; // freed objects are moved here to avoid crashes
		865
		866	if (!freed_map)
		867	{
		868	freed_map = new maptile;
		869
		870	freed_map->name = "/internal/freed_objects_map";
		871	freed_map->width = 3;
		872	freed_map->height = 3;
		873
		874	freed_map->allocate ();
1031	}	875	}
		876
		877	map = freed_map;
		878	x = 1;
		879	y = 1;
		880	}
		881
		882	head = 0;
1032		883
1033	if (more)	884	if (more)
1034	{	885	{
1035	more->free (free_inventory);	886	more->destroy ();
1036	more = 0;	887	more = 0;
1037	}	888	}
1038		889
1039	if (inv)	890	// clear those pointers that likely might have circular references to us
1040	{	891	owner = 0;
1041	/* Only if the space blocks everything do we not process -	892	enemy = 0;
1042	* if some form of movement is allowed, let objects	893	attacked_by = 0;
1043	* drop on that space.
1044	*/
1045	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
1046	{
1047	object *
1048	op = inv;
1049		894
1050	while (op)	895	// only relevant for players(?), but make sure of it anyways
1051	{	896	contr = 0;
1052	object *	897	}
1053	tmp = op->below;
1054		898
1055	remove_ob (op);	899	void
1056	op->free (free_inventory);	900	object::destroy (bool destroy_inventory)
1057	op = tmp;	901	{
1058	}	902	if (destroyed ())
1059	}	903	return;
1060	else
1061	{ /* Put objects in inventory onto this space */
1062	object *
1063	op = inv;
1064		904
1065	while (op)	905	if (destroy_inventory)
1066	{	906	destroy_inv (false);
1067	object *
1068	tmp = op->below;
1069		907
1070	remove_ob (op);	908	attachable::destroy ();
1071
1072	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1073	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1074	free_object (op);
1075	else
1076	{
1077	op->x = x;
1078	op->y = y;
1079	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1080	}
1081
1082	op = tmp;
1083	}
1084	}
1085	}
1086
1087	clear_owner (this);
1088
1089	/* Remove object from the active list */
1090	speed = 0;
1091	update_ob_speed (this);
1092
1093	unlink ();
1094
1095	SET_FLAG (this, FLAG_FREED);
1096
1097	mortals.push_back (this);
1098	}	909	}
1099		910
1100	/*	911	/*
1101	* sub_weight() recursively (outwards) subtracts a number from the	912	* sub_weight() recursively (outwards) subtracts a number from the
1102	* weight of an object (and what is carried by it's environment(s)).	913	* weight of an object (and what is carried by it's environment(s)).
1103	*/	914	*/
1104
1105	void	915	void
1106	sub_weight (object *op, signed long weight)	916	sub_weight (object *op, signed long weight)
1107	{	917	{
1108	while (op != NULL)	918	while (op != NULL)
1109	{	919	{
1110	if (op->type == CONTAINER)	920	if (op->type == CONTAINER)
1111	{
1112	weight = (signed long) (weight * (100 - op->stats.Str) / 100);	921	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1113	}	922
1114	op->carrying -= weight;	923	op->carrying -= weight;
1115	op = op->env;	924	op = op->env;
1116	}	925	}
1117	}	926	}
1118		927
1119	/* remove_ob(op):	928	/* op->remove ():
1120	* This function removes the object op from the linked list of objects	929	* This function removes the object op from the linked list of objects
1121	* which it is currently tied to. When this function is done, the	930	* which it is currently tied to. When this function is done, the
1122	* object will have no environment. If the object previously had an	931	* object will have no environment. If the object previously had an
1123	* environment, the x and y coordinates will be updated to	932	* environment, the x and y coordinates will be updated to
1124	* the previous environment.	933	* the previous environment.
1125	* Beware: This function is called from the editor as well!	934	* Beware: This function is called from the editor as well!
1126	*/	935	*/
1127
1128	void	936	void
1129	remove_ob (object *op)	937	object::remove ()
1130	{	938	{
		939	object *tmp, *last = 0;
1131	object *	940	object *otmp;
1132	tmp, *
1133	last = NULL;
1134	object *
1135	otmp;
1136	tag_t
1137	tag;
1138	int
1139	check_walk_off;
1140	mapstruct *
1141	m;
1142	sint16
1143	x,
1144	y;
1145		941
1146
1147	if (QUERY_FLAG (op, FLAG_REMOVED))	942	if (QUERY_FLAG (this, FLAG_REMOVED))
1148	{	943	return;
1149	dump_object (op);
1150	LOG (llevError, "Trying to remove removed object.\n%s\n", errmsg);
1151		944
1152	/* Changed it to always dump core in this case. As has been learned
1153	* in the past, trying to recover from errors almost always
1154	* make things worse, and this is a real error here - something
1155	* that should not happen.
1156	* Yes, if this was a mission critical app, trying to do something
1157	* to recover may make sense, but that is because failure of the app
1158	* may have other disastrous problems. Cf runs out of a script
1159	* so is easily enough restarted without any real problems.
1160	* MSW 2001-07-01
1161	*/
1162	abort ();
1163	}
1164	if (op->more != NULL)
1165	remove_ob (op->more);
1166
1167	SET_FLAG (op, FLAG_REMOVED);	945	SET_FLAG (this, FLAG_REMOVED);
		946	INVOKE_OBJECT (REMOVE, this);
		947
		948	if (more)
		949	more->remove ();
1168		950
1169	/*	951	/*
1170	* In this case, the object to be removed is in someones	952	* In this case, the object to be removed is in someones
1171	* inventory.	953	* inventory.
1172	*/	954	*/
1173	if (op->env != NULL)	955	if (env)
1174	{	956	{
1175	if (op->nrof)	957	if (nrof)
1176	sub_weight (op->env, op->weight * op->nrof);	958	sub_weight (env, weight * nrof);
1177	else	959	else
1178	sub_weight (op->env, op->weight + op->carrying);	960	sub_weight (env, weight + carrying);
1179		961
1180	/* NO_FIX_PLAYER is set when a great many changes are being	962	/* NO_FIX_PLAYER is set when a great many changes are being
1181	* made to players inventory. If set, avoiding the call	963	* made to players inventory. If set, avoiding the call
1182	* to save cpu time.	964	* to save cpu time.
1183	*/	965	*/
1184	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	966	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1185	fix_player (otmp);	967	otmp->update_stats ();
1186		968
1187	if (op->above != NULL)	969	if (above != NULL)
1188	op->above->below = op->below;	970	above->below = below;
1189	else	971	else
1190	op->env->inv = op->below;	972	env->inv = below;
1191		973
1192	if (op->below != NULL)	974	if (below != NULL)
1193	op->below->above = op->above;	975	below->above = above;
1194		976
1195	/* we set up values so that it could be inserted into	977	/* we set up values so that it could be inserted into
1196	* the map, but we don't actually do that - it is up	978	* the map, but we don't actually do that - it is up
1197	* to the caller to decide what we want to do.	979	* to the caller to decide what we want to do.
1198	*/	980	*/
1199	op->x = op->env->x, op->y = op->env->y;	981	x = env->x, y = env->y;
1200	op->map = op->env->map;	982	map = env->map;
1201	op->above = NULL, op->below = NULL;	983	above = 0, below = 0;
1202	op->env = NULL;	984	env = 0;
1203	return;
1204	}
1205
1206	/* If we get here, we are removing it from a map */
1207	if (op->map == NULL)
1208	return;
1209
1210	x = op->x;
1211	y = op->y;
1212	m = get_map_from_coord (op->map, &x, &y);
1213
1214	if (!m)
1215	{	985	}
1216	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	986	else if (map)
1217	op->map->path, op->x, op->y);	987	{
1218	/* in old days, we used to set x and y to 0 and continue.	988	/* Re did the following section of code - it looks like it had
1219	* it seems if we get into this case, something is probablye	989	* lots of logic for things we no longer care about
1220	* screwed up and should be fixed.
1221	*/	990	*/
1222	abort ();
1223	}
1224	if (op->map != m)
1225	{
1226	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1227	op->map->path, m->path, op->x, op->y, x, y);
1228	}
1229		991
1230	/* Re did the following section of code - it looks like it had
1231	* lots of logic for things we no longer care about
1232	*/
1233
1234	/* link the object above us */	992	/* link the object above us */
1235	if (op->above)	993	if (above)
1236	op->above->below = op->below;	994	above->below = below;
1237	else	995	else
1238	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */	996	map->at (x, y).top = below; /* we were top, set new top */
1239		997
1240	/* Relink the object below us, if there is one */	998	/* Relink the object below us, if there is one */
1241	if (op->below)	999	if (below)
1242	{
1243	op->below->above = op->above;	1000	below->above = above;
1244	}
1245	else	1001	else
1246	{
1247	/* Nothing below, which means we need to relink map object for this space
1248	* use translated coordinates in case some oddness with map tiling is
1249	* evident
1250	*/
1251	if (GET_MAP_OB (m, x, y) != op)
1252	{	1002	{
1253	dump_object (op);	1003	/* Nothing below, which means we need to relink map object for this space
		1004	* use translated coordinates in case some oddness with map tiling is
		1005	* evident
		1006	*/
		1007	if (GET_MAP_OB (map, x, y) != this)
		1008	{
		1009	char *dump = dump_object (this);
		1010	LOG (llevError,
1254	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n",	1011	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
1255	errmsg);	1012	free (dump);
1256	dump_object (GET_MAP_OB (m, x, y));	1013	dump = dump_object (GET_MAP_OB (map, x, y));
1257	LOG (llevError, "%s\n", errmsg);	1014	LOG (llevError, "%s\n", dump);
		1015	free (dump);
		1016	}
		1017
		1018	map->at (x, y).bot = above; /* goes on above it. */
1258	}	1019	}
1259	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1260	}
1261	op->above = NULL;
1262	op->below = NULL;
1263		1020
		1021	above = 0;
		1022	below = 0;
		1023
1264	if (op->map->in_memory == MAP_SAVING)	1024	if (map->in_memory == MAP_SAVING)
1265	return;	1025	return;
1266		1026
1267	tag = op->count;	1027	int check_walk_off = !flag [FLAG_NO_APPLY];
1268	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1269	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1270	{
1271	/* No point updating the players look faces if he is the object
1272	* being removed.
1273	*/
1274		1028
1275	if (tmp->type == PLAYER && tmp != op)	1029	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1276	{	1030	{
1277	/* If a container that the player is currently using somehow gets	1031	/* No point updating the players look faces if he is the object
1278	* removed (most likely destroyed), update the player view	1032	* being removed.
1279	* appropriately.
1280	*/	1033	*/
1281	if (tmp->container == op)	1034
		1035	if (tmp->type == PLAYER && tmp != this)
1282	{	1036	{
1283	CLEAR_FLAG (op, FLAG_APPLIED);	1037	/* If a container that the player is currently using somehow gets
		1038	* removed (most likely destroyed), update the player view
		1039	* appropriately.
		1040	*/
		1041	if (tmp->container == this)
		1042	{
		1043	flag [FLAG_APPLIED] = 0;
1284	tmp->container = NULL;	1044	tmp->container = 0;
		1045	}
		1046
		1047	if (tmp->contr->ns)
		1048	tmp->contr->ns->floorbox_update ();
1285	}	1049	}
1286	tmp->contr->socket.update_look = 1;	1050
		1051	/* See if player moving off should effect something */
		1052	if (check_walk_off
		1053	&& ((move_type & tmp->move_off)
		1054	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1055	{
		1056	move_apply (tmp, this, 0);
		1057
		1058	if (destroyed ())
		1059	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1060	}
		1061
		1062	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1063
		1064	if (tmp->above == tmp)
		1065	tmp->above = 0;
		1066
		1067	last = tmp;
1287	}	1068	}
1288	/* See if player moving off should effect something */
1289	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1290	{
1291		1069
1292	move_apply (tmp, op, NULL);
1293	if (was_destroyed (op, tag))
1294	{
1295	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1296	}
1297	}
1298
1299	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1300
1301	if (tmp->above == tmp)
1302	tmp->above = NULL;
1303	last = tmp;
1304	}
1305	/* last == NULL of there are no objects on this space */	1070	/* last == NULL of there are no objects on this space */
1306	if (last == NULL)	1071	if (!last)
1307	{	1072	map->at (x, y).flags_ = P_NEED_UPDATE;
1308	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1309	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1310	* those out anyways, and if there are any flags set right now, they won't
1311	* be correct anyways.
1312	*/
1313	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1314	update_position (op->map, op->x, op->y);
1315	}
1316	else	1073	else
1317	update_object (last, UP_OBJ_REMOVE);	1074	update_object (last, UP_OBJ_REMOVE);
1318		1075
1319	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1076	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1320	update_all_los (op->map, op->x, op->y);	1077	update_all_los (map, x, y);
1321		1078	}
1322	}	1079	}
1323		1080
1324	/*	1081	/*
1325	* merge_ob(op,top):	1082	* merge_ob(op,top):
1326	*	1083	*
1327	* This function goes through all objects below and including top, and	1084	* This function goes through all objects below and including top, and
1328	* merges op to the first matching object.	1085	* merges op to the first matching object.
1329	* If top is NULL, it is calculated.	1086	* If top is NULL, it is calculated.
1330	* Returns pointer to object if it succeded in the merge, otherwise NULL	1087	* Returns pointer to object if it succeded in the merge, otherwise NULL
1331	*/	1088	*/
1332
1333	object *	1089	object *
1334	merge_ob (object *op, object *top)	1090	merge_ob (object *op, object *top)
1335	{	1091	{
1336	if (!op->nrof)	1092	if (!op->nrof)
1337	return 0;	1093	return 0;
1338	if (top == NULL)	1094
		1095	if (top)
1339	for (top = op; top != NULL && top->above != NULL; top = top->above);	1096	for (top = op; top && top->above; top = top->above)
		1097	;
		1098
1340	for (; top != NULL; top = top->below)	1099	for (; top; top = top->below)
1341	{	1100	{
1342	if (top == op)	1101	if (top == op)
1343	continue;	1102	continue;
1344	if (CAN_MERGE (op, top))	1103
		1104	if (object::can_merge (op, top))
1345	{	1105	{
1346	top->nrof += op->nrof;	1106	top->nrof += op->nrof;
1347		1107
1348	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1108	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1349	op->weight = 0; /* Don't want any adjustements now */	1109	op->weight = 0; /* Don't want any adjustements now */
1350	remove_ob (op);	1110	op->destroy ();
1351	free_object (op);
1352	return top;	1111	return top;
1353	}	1112	}
1354	}	1113	}
		1114
1355	return NULL;	1115	return 0;
1356	}	1116	}
1357		1117
1358	/*	1118	/*
1359	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1119	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1360	* job preparing multi-part monsters	1120	* job preparing multi-part monsters
1361	*/	1121	*/
1362	object *	1122	object *
1363	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1123	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1364	{	1124	{
1365	object *
1366	tmp;
1367
1368	if (op->head)
1369	op = op->head;
1370	for (tmp = op; tmp; tmp = tmp->more)	1125	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1371	{	1126	{
1372	tmp->x = x + tmp->arch->clone.x;	1127	tmp->x = x + tmp->arch->clone.x;
1373	tmp->y = y + tmp->arch->clone.y;	1128	tmp->y = y + tmp->arch->clone.y;
1374	}	1129	}
		1130
1375	return insert_ob_in_map (op, m, originator, flag);	1131	return insert_ob_in_map (op, m, originator, flag);
1376	}	1132	}
1377		1133
1378	/*	1134	/*
1379	* insert_ob_in_map (op, map, originator, flag):	1135	* insert_ob_in_map (op, map, originator, flag):
…		…
1393	* Return value:	1149	* Return value:
1394	* new object if 'op' was merged with other object	1150	* new object if 'op' was merged with other object
1395	* NULL if 'op' was destroyed	1151	* NULL if 'op' was destroyed
1396	* just 'op' otherwise	1152	* just 'op' otherwise
1397	*/	1153	*/
1398
1399	object *	1154	object *
1400	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1155	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1401	{	1156	{
1402	object *tmp, *top, *floor = NULL;	1157	object *tmp, *top, *floor = NULL;
1403	sint16 x, y;	1158	sint16 x, y;
1404		1159
1405	if (QUERY_FLAG (op, FLAG_FREED))	1160	if (QUERY_FLAG (op, FLAG_FREED))
…		…
1408	return NULL;	1163	return NULL;
1409	}	1164	}
1410		1165
1411	if (m == NULL)	1166	if (m == NULL)
1412	{	1167	{
1413	dump_object (op);	1168	char *dump = dump_object (op);
1414	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);	1169	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1170	free (dump);
1415	return op;	1171	return op;
1416	}	1172	}
1417		1173
1418	if (out_of_map (m, op->x, op->y))	1174	if (out_of_map (m, op->x, op->y))
1419	{	1175	{
1420	dump_object (op);	1176	char *dump = dump_object (op);
1421	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);	1177	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1422	#ifdef MANY_CORES	1178	#ifdef MANY_CORES
1423	/* Better to catch this here, as otherwise the next use of this object	1179	/* Better to catch this here, as otherwise the next use of this object
1424	* is likely to cause a crash. Better to find out where it is getting	1180	* is likely to cause a crash. Better to find out where it is getting
1425	* improperly inserted.	1181	* improperly inserted.
1426	*/	1182	*/
1427	abort ();	1183	abort ();
1428	#endif	1184	#endif
		1185	free (dump);
1429	return op;	1186	return op;
1430	}	1187	}
1431		1188
1432	if (!QUERY_FLAG (op, FLAG_REMOVED))	1189	if (!QUERY_FLAG (op, FLAG_REMOVED))
1433	{	1190	{
1434	dump_object (op);	1191	char *dump = dump_object (op);
1435	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);	1192	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1193	free (dump);
1436	return op;	1194	return op;
1437	}	1195	}
1438		1196
1439	if (op->more != NULL)	1197	if (op->more)
1440	{	1198	{
1441	/* The part may be on a different map. */	1199	/* The part may be on a different map. */
1442		1200
1443	object *
1444	more = op->more;	1201	object *more = op->more;
1445		1202
1446	/* We really need the caller to normalize coordinates - if	1203	/* We really need the caller to normalize coordinates - if
1447	* we set the map, that doesn't work if the location is within	1204	* we set the map, that doesn't work if the location is within
1448	* a map and this is straddling an edge. So only if coordinate	1205	* a map and this is straddling an edge. So only if coordinate
1449	* is clear wrong do we normalize it.	1206	* is clear wrong do we normalize it.
1450	*/	1207	*/
1451	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))	1208	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1452	{
1453	more->map = get_map_from_coord (m, &more->x, &more->y);	1209	more->map = get_map_from_coord (m, &more->x, &more->y);
1454	}
1455	else if (!more->map)	1210	else if (!more->map)
1456	{	1211	{
1457	/* For backwards compatibility - when not dealing with tiled maps,	1212	/* For backwards compatibility - when not dealing with tiled maps,
1458	* more->map should always point to the parent.	1213	* more->map should always point to the parent.
1459	*/	1214	*/
…		…
1462		1217
1463	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)	1218	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1464	{	1219	{
1465	if (!op->head)	1220	if (!op->head)
1466	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1221	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1222
1467	return NULL;	1223	return 0;
1468	}	1224	}
1469	}	1225	}
1470		1226
1471	CLEAR_FLAG (op, FLAG_REMOVED);	1227	CLEAR_FLAG (op, FLAG_REMOVED);
1472		1228
…		…
1480		1236
1481	/* this has to be done after we translate the coordinates.	1237	/* this has to be done after we translate the coordinates.
1482	*/	1238	*/
1483	if (op->nrof && !(flag & INS_NO_MERGE))	1239	if (op->nrof && !(flag & INS_NO_MERGE))
1484	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1240	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1485	if (CAN_MERGE (op, tmp))	1241	if (object::can_merge (op, tmp))
1486	{	1242	{
1487	op->nrof += tmp->nrof;	1243	op->nrof += tmp->nrof;
1488	remove_ob (tmp);	1244	tmp->destroy ();
1489	free_object (tmp);
1490	}	1245	}
1491		1246
1492	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1247	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1493	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1248	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1494		1249
…		…
1507	op->below = originator->below;	1262	op->below = originator->below;
1508		1263
1509	if (op->below)	1264	if (op->below)
1510	op->below->above = op;	1265	op->below->above = op;
1511	else	1266	else
1512	SET_MAP_OB (op->map, op->x, op->y, op);	1267	op->ms ().bot = op;
1513		1268
1514	/* since *below* originator, no need to update top */	1269	/* since *below* originator, no need to update top */
1515	originator->below = op;	1270	originator->below = op;
1516	}	1271	}
1517	else	1272	else
…		…
1536		1291
1537	while (top != NULL)	1292	while (top != NULL)
1538	{	1293	{
1539	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1294	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1540	floor = top;	1295	floor = top;
		1296
1541	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1297	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
1542	{	1298	{
1543	/* We insert above top, so we want this object below this */	1299	/* We insert above top, so we want this object below this */
1544	top = top->below;	1300	top = top->below;
1545	break;	1301	break;
1546	}	1302	}
		1303
1547	last = top;	1304	last = top;
1548	top = top->above;	1305	top = top->above;
1549	}	1306	}
		1307
1550	/* Don't want top to be NULL, so set it to the last valid object */	1308	/* Don't want top to be NULL, so set it to the last valid object */
1551	top = last;	1309	top = last;
1552		1310
1553	/* We let update_position deal with figuring out what the space	1311	/* We let update_position deal with figuring out what the space
1554	* looks like instead of lots of conditions here.	1312	* looks like instead of lots of conditions here.
…		…
1560	* If INS_ON_TOP is used, don't do this processing	1318	* If INS_ON_TOP is used, don't do this processing
1561	* Need to find the object that in fact blocks view, otherwise	1319	* Need to find the object that in fact blocks view, otherwise
1562	* stacking is a bit odd.	1320	* stacking is a bit odd.
1563	*/	1321	*/
1564	if (!(flag & INS_ON_TOP) &&	1322	if (!(flag & INS_ON_TOP) &&
1565	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1323	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1566	{	1324	{
1567	for (last = top; last != floor; last = last->below)	1325	for (last = top; last != floor; last = last->below)
1568	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1326	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1569	break;	1327	break;
1570	/* Check to see if we found the object that blocks view,	1328	/* Check to see if we found the object that blocks view,
…		…
1593		1351
1594	if (op->above)	1352	if (op->above)
1595	op->above->below = op;	1353	op->above->below = op;
1596		1354
1597	op->below = NULL;	1355	op->below = NULL;
1598	SET_MAP_OB (op->map, op->x, op->y, op);	1356	op->ms ().bot = op;
1599	}	1357	}
1600	else	1358	else
1601	{ /* get inserted into the stack above top */	1359	{ /* get inserted into the stack above top */
1602	op->above = top->above;	1360	op->above = top->above;
1603		1361
…		…
1607	op->below = top;	1365	op->below = top;
1608	top->above = op;	1366	top->above = op;
1609	}	1367	}
1610		1368
1611	if (op->above == NULL)	1369	if (op->above == NULL)
1612	SET_MAP_TOP (op->map, op->x, op->y, op);	1370	op->ms ().top = op;
1613	} /* else not INS_BELOW_ORIGINATOR */	1371	} /* else not INS_BELOW_ORIGINATOR */
1614		1372
1615	if (op->type == PLAYER)	1373	if (op->type == PLAYER)
1616	op->contr->do_los = 1;	1374	op->contr->do_los = 1;
1617		1375
1618	/* If we have a floor, we know the player, if any, will be above	1376	/* If we have a floor, we know the player, if any, will be above
1619	* it, so save a few ticks and start from there.	1377	* it, so save a few ticks and start from there.
1620	*/	1378	*/
1621	if (!(flag & INS_MAP_LOAD))	1379	if (!(flag & INS_MAP_LOAD))
1622	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1380	if (object *pl = op->ms ().player ())
1623	if (tmp->type == PLAYER)	1381	if (pl->contr->ns)
1624	tmp->contr->socket.update_look = 1;	1382	pl->contr->ns->floorbox_update ();
1625		1383
1626	/* If this object glows, it may affect lighting conditions that are	1384	/* If this object glows, it may affect lighting conditions that are
1627	* visible to others on this map. But update_all_los is really	1385	* visible to others on this map. But update_all_los is really
1628	* an inefficient way to do this, as it means los for all players	1386	* an inefficient way to do this, as it means los for all players
1629	* on the map will get recalculated. The players could very well	1387	* on the map will get recalculated. The players could very well
1630	* be far away from this change and not affected in any way -	1388	* be far away from this change and not affected in any way -
1631	* this should get redone to only look for players within range,	1389	* this should get redone to only look for players within range,
1632	* or just updating the P_NEED_UPDATE for spaces within this area	1390	* or just updating the P_NEED_UPDATE for spaces within this area
1633	* of effect may be sufficient.	1391	* of effect may be sufficient.
1634	*/	1392	*/
1635	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1393	if (op->map->darkness && (op->glow_radius != 0))
1636	update_all_los (op->map, op->x, op->y);	1394	update_all_los (op->map, op->x, op->y);
1637
1638		1395
1639	/* updates flags (blocked, alive, no magic, etc) for this map space */	1396	/* updates flags (blocked, alive, no magic, etc) for this map space */
1640	update_object (op, UP_OBJ_INSERT);	1397	update_object (op, UP_OBJ_INSERT);
1641		1398
		1399	INVOKE_OBJECT (INSERT, op);
1642		1400
1643	/* Don't know if moving this to the end will break anything. However,	1401	/* Don't know if moving this to the end will break anything. However,
1644	* we want to have update_look set above before calling this.	1402	* we want to have floorbox_update called before calling this.
1645	*	1403	*
1646	* check_move_on() must be after this because code called from	1404	* check_move_on() must be after this because code called from
1647	* check_move_on() depends on correct map flags (so functions like	1405	* check_move_on() depends on correct map flags (so functions like
1648	* blocked() and wall() work properly), and these flags are updated by	1406	* blocked() and wall() work properly), and these flags are updated by
1649	* update_object().	1407	* update_object().
…		…
1651		1409
1652	/* if this is not the head or flag has been passed, don't check walk on status */	1410	/* if this is not the head or flag has been passed, don't check walk on status */
1653	if (!(flag & INS_NO_WALK_ON) && !op->head)	1411	if (!(flag & INS_NO_WALK_ON) && !op->head)
1654	{	1412	{
1655	if (check_move_on (op, originator))	1413	if (check_move_on (op, originator))
1656	return NULL;	1414	return 0;
1657		1415
1658	/* If we are a multi part object, lets work our way through the check	1416	/* If we are a multi part object, lets work our way through the check
1659	* walk on's.	1417	* walk on's.
1660	*/	1418	*/
1661	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1419	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1662	if (check_move_on (tmp, originator))	1420	if (check_move_on (tmp, originator))
1663	return NULL;	1421	return 0;
1664	}	1422	}
1665		1423
1666	return op;	1424	return op;
1667	}	1425	}
1668		1426
1669	/* this function inserts an object in the map, but if it	1427	/* this function inserts an object in the map, but if it
1670	* finds an object of its own type, it'll remove that one first.	1428	* finds an object of its own type, it'll remove that one first.
1671	* op is the object to insert it under: supplies x and the map.	1429	* op is the object to insert it under: supplies x and the map.
1672	*/	1430	*/
1673	void	1431	void
1674	replace_insert_ob_in_map (const char *arch_string, object *op)	1432	replace_insert_ob_in_map (const char *arch_string, object *op)
1675	{	1433	{
1676	object *tmp;
1677	object *tmp1;	1434	object *tmp, *tmp1;
1678		1435
1679	/* first search for itself and remove any old instances */	1436	/* first search for itself and remove any old instances */
1680		1437
1681	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1438	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1682	{
1683	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1439	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1684	{	1440	tmp->destroy ();
1685	remove_ob (tmp);
1686	free_object (tmp);
1687	}
1688	}
1689		1441
1690	tmp1 = arch_to_object (find_archetype (arch_string));	1442	tmp1 = arch_to_object (archetype::find (arch_string));
1691		1443
1692	tmp1->x = op->x;	1444	tmp1->x = op->x;
1693	tmp1->y = op->y;	1445	tmp1->y = op->y;
1694	insert_ob_in_map (tmp1, op->map, op, 0);	1446	insert_ob_in_map (tmp1, op->map, op, 0);
		1447	}
		1448
		1449	object *
		1450	object::insert_at (object *where, object *originator, int flags)
		1451	{
		1452	where->map->insert (this, where->x, where->y, originator, flags);
1695	}	1453	}
1696		1454
1697	/*	1455	/*
1698	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1456	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1699	* is returned contains nr objects, and the remaining parts contains	1457	* is returned contains nr objects, and the remaining parts contains
1700	* the rest (or is removed and freed if that number is 0).	1458	* the rest (or is removed and freed if that number is 0).
1701	* On failure, NULL is returned, and the reason put into the	1459	* On failure, NULL is returned, and the reason put into the
1702	* global static errmsg array.	1460	* global static errmsg array.
1703	*/	1461	*/
1704
1705	object *	1462	object *
1706	get_split_ob (object *orig_ob, uint32 nr)	1463	get_split_ob (object *orig_ob, uint32 nr)
1707	{	1464	{
1708	object *	1465	object *newob;
1709	newob;
1710	int
1711	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1466	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1712		1467
1713	if (orig_ob->nrof < nr)	1468	if (orig_ob->nrof < nr)
1714	{	1469	{
1715	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);	1470	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1716	return NULL;	1471	return NULL;
1717	}	1472	}
		1473
1718	newob = object_create_clone (orig_ob);	1474	newob = object_create_clone (orig_ob);
		1475
1719	if ((orig_ob->nrof -= nr) < 1)	1476	if ((orig_ob->nrof -= nr) < 1)
1720	{	1477	orig_ob->destroy (1);
1721	if (!is_removed)
1722	remove_ob (orig_ob);
1723	free_object2 (orig_ob, 1);
1724	}
1725	else if (!is_removed)	1478	else if (!is_removed)
1726	{	1479	{
1727	if (orig_ob->env != NULL)	1480	if (orig_ob->env != NULL)
1728	sub_weight (orig_ob->env, orig_ob->weight * nr);	1481	sub_weight (orig_ob->env, orig_ob->weight * nr);
1729	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)	1482	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
…		…
1731	strcpy (errmsg, "Tried to split object whose map is not in memory.");	1484	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1732	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");	1485	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1733	return NULL;	1486	return NULL;
1734	}	1487	}
1735	}	1488	}
		1489
1736	newob->nrof = nr;	1490	newob->nrof = nr;
1737		1491
1738	return newob;	1492	return newob;
1739	}	1493	}
1740		1494
…		…
1747	*/	1501	*/
1748		1502
1749	object *	1503	object *
1750	decrease_ob_nr (object *op, uint32 i)	1504	decrease_ob_nr (object *op, uint32 i)
1751	{	1505	{
1752	object *	1506	object *tmp;
1753	tmp;
1754	player *
1755	pl;
1756		1507
1757	if (i == 0) /* objects with op->nrof require this check */	1508	if (i == 0) /* objects with op->nrof require this check */
1758	return op;	1509	return op;
1759		1510
1760	if (i > op->nrof)	1511	if (i > op->nrof)
1761	i = op->nrof;	1512	i = op->nrof;
1762		1513
1763	if (QUERY_FLAG (op, FLAG_REMOVED))	1514	if (QUERY_FLAG (op, FLAG_REMOVED))
1764	{
1765	op->nrof -= i;	1515	op->nrof -= i;
1766	}
1767	else if (op->env != NULL)	1516	else if (op->env)
1768	{	1517	{
1769	/* is this object in the players inventory, or sub container	1518	/* is this object in the players inventory, or sub container
1770	* therein?	1519	* therein?
1771	*/	1520	*/
1772	tmp = is_player_inv (op->env);	1521	tmp = op->in_player ();
1773	/* nope. Is this a container the player has opened?	1522	/* nope. Is this a container the player has opened?
1774	* If so, set tmp to that player.	1523	* If so, set tmp to that player.
1775	* IMO, searching through all the players will mostly	1524	* IMO, searching through all the players will mostly
1776	* likely be quicker than following op->env to the map,	1525	* likely be quicker than following op->env to the map,
1777	* and then searching the map for a player.	1526	* and then searching the map for a player.
1778	*/	1527	*/
1779	if (!tmp)	1528	if (!tmp)
1780	{	1529	for_all_players (pl)
1781	for (pl = first_player; pl; pl = pl->next)
1782	if (pl->ob->container == op->env)	1530	if (pl->ob->container == op->env)
		1531	{
		1532	tmp = pl->ob;
1783	break;	1533	break;
1784	if (pl)
1785	tmp = pl->ob;
1786	else
1787	tmp = NULL;
1788	}	1534	}
1789		1535
1790	if (i < op->nrof)	1536	if (i < op->nrof)
1791	{	1537	{
1792	sub_weight (op->env, op->weight * i);	1538	sub_weight (op->env, op->weight * i);
1793	op->nrof -= i;	1539	op->nrof -= i;
1794	if (tmp)	1540	if (tmp)
1795	{
1796	esrv_send_item (tmp, op);	1541	esrv_send_item (tmp, op);
1797	}
1798	}	1542	}
1799	else	1543	else
1800	{	1544	{
1801	remove_ob (op);	1545	op->remove ();
1802	op->nrof = 0;	1546	op->nrof = 0;
1803	if (tmp)	1547	if (tmp)
1804	{
1805	esrv_del_item (tmp->contr, op->count);	1548	esrv_del_item (tmp->contr, op->count);
1806	}
1807	}	1549	}
1808	}	1550	}
1809	else	1551	else
1810	{	1552	{
1811	object *
1812	above = op->above;	1553	object *above = op->above;
1813		1554
1814	if (i < op->nrof)	1555	if (i < op->nrof)
1815	{
1816	op->nrof -= i;	1556	op->nrof -= i;
1817	}
1818	else	1557	else
1819	{	1558	{
1820	remove_ob (op);	1559	op->remove ();
1821	op->nrof = 0;	1560	op->nrof = 0;
1822	}	1561	}
		1562
1823	/* Since we just removed op, op->above is null */	1563	/* Since we just removed op, op->above is null */
1824	for (tmp = above; tmp != NULL; tmp = tmp->above)	1564	for (tmp = above; tmp; tmp = tmp->above)
1825	if (tmp->type == PLAYER)	1565	if (tmp->type == PLAYER)
1826	{	1566	{
1827	if (op->nrof)	1567	if (op->nrof)
1828	esrv_send_item (tmp, op);	1568	esrv_send_item (tmp, op);
1829	else	1569	else
1830	esrv_del_item (tmp->contr, op->count);	1570	esrv_del_item (tmp->contr, op->count);
1831	}	1571	}
1832	}	1572	}
1833		1573
1834	if (op->nrof)	1574	if (op->nrof)
1835	{
1836	return op;	1575	return op;
1837	}
1838	else	1576	else
1839	{	1577	{
1840	free_object (op);	1578	op->destroy ();
1841	return NULL;	1579	return 0;
1842	}	1580	}
1843	}	1581	}
1844		1582
1845	/*	1583	/*
1846	* add_weight(object, weight) adds the specified weight to an object,	1584	* add_weight(object, weight) adds the specified weight to an object,
…		…
1851	add_weight (object *op, signed long weight)	1589	add_weight (object *op, signed long weight)
1852	{	1590	{
1853	while (op != NULL)	1591	while (op != NULL)
1854	{	1592	{
1855	if (op->type == CONTAINER)	1593	if (op->type == CONTAINER)
1856	{
1857	weight = (signed long) (weight * (100 - op->stats.Str) / 100);	1594	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1858	}	1595
1859	op->carrying += weight;	1596	op->carrying += weight;
1860	op = op->env;	1597	op = op->env;
1861	}	1598	}
1862	}	1599	}
1863		1600
		1601	object *
		1602	insert_ob_in_ob (object *op, object *where)
		1603	{
		1604	if (!where)
		1605	{
		1606	char *dump = dump_object (op);
		1607	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1608	free (dump);
		1609	return op;
		1610	}
		1611
		1612	if (where->head)
		1613	{
		1614	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1615	where = where->head;
		1616	}
		1617
		1618	return where->insert (op);
		1619	}
		1620
1864	/*	1621	/*
1865	* insert_ob_in_ob(op,environment):	1622	* env->insert (op)
1866	* This function inserts the object op in the linked list	1623	* This function inserts the object op in the linked list
1867	* inside the object environment.	1624	* inside the object environment.
1868	*	1625	*
1869	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1870	* the inventory at the last position or next to other objects of the same
1871	* type.
1872	* Frank: Now sorted by type, archetype and magic!
1873	*
1874	* The function returns now pointer to inserted item, and return value can	1626	* The function returns now pointer to inserted item, and return value can
1875	* be != op, if items are merged. -Tero	1627	* be != op, if items are merged. -Tero
1876	*/	1628	*/
1877		1629
1878	object *	1630	object *
1879	insert_ob_in_ob (object *op, object *where)	1631	object::insert (object *op)
1880	{	1632	{
1881	object *	1633	object *tmp, *otmp;
1882	tmp, *
1883	otmp;
1884		1634
1885	if (!QUERY_FLAG (op, FLAG_REMOVED))	1635	if (!QUERY_FLAG (op, FLAG_REMOVED))
1886	{	1636	op->remove ();
1887	dump_object (op);	1637
1888	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1889	return op;
1890	}
1891	if (where == NULL)
1892	{
1893	dump_object (op);
1894	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1895	return op;
1896	}
1897	if (where->head)
1898	{
1899	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1900	where = where->head;
1901	}
1902	if (op->more)	1638	if (op->more)
1903	{	1639	{
1904	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1640	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1905	return op;	1641	return op;
1906	}	1642	}
		1643
1907	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1644	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1908	CLEAR_FLAG (op, FLAG_REMOVED);	1645	CLEAR_FLAG (op, FLAG_REMOVED);
1909	if (op->nrof)	1646	if (op->nrof)
1910	{	1647	{
1911	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1648	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1912	if (CAN_MERGE (tmp, op))	1649	if (object::can_merge (tmp, op))
1913	{	1650	{
1914	/* return the original object and remove inserted object	1651	/* return the original object and remove inserted object
1915	(client needs the original object) */	1652	(client needs the original object) */
1916	tmp->nrof += op->nrof;	1653	tmp->nrof += op->nrof;
1917	/* Weight handling gets pretty funky. Since we are adding to	1654	/* Weight handling gets pretty funky. Since we are adding to
1918	* tmp->nrof, we need to increase the weight.	1655	* tmp->nrof, we need to increase the weight.
1919	*/	1656	*/
1920	add_weight (where, op->weight * op->nrof);	1657	add_weight (this, op->weight * op->nrof);
1921	SET_FLAG (op, FLAG_REMOVED);	1658	SET_FLAG (op, FLAG_REMOVED);
1922	free_object (op); /* free the inserted object */	1659	op->destroy (); /* free the inserted object */
1923	op = tmp;	1660	op = tmp;
1924	remove_ob (op); /* and fix old object's links */	1661	op->remove (); /* and fix old object's links */
1925	CLEAR_FLAG (op, FLAG_REMOVED);	1662	CLEAR_FLAG (op, FLAG_REMOVED);
1926	break;	1663	break;
1927	}	1664	}
1928		1665
1929	/* I assume combined objects have no inventory	1666	/* I assume combined objects have no inventory
1930	* We add the weight - this object could have just been removed	1667	* We add the weight - this object could have just been removed
1931	* (if it was possible to merge). calling remove_ob will subtract	1668	* (if it was possible to merge). calling remove_ob will subtract
1932	* the weight, so we need to add it in again, since we actually do	1669	* the weight, so we need to add it in again, since we actually do
1933	* the linking below	1670	* the linking below
1934	*/	1671	*/
1935	add_weight (where, op->weight * op->nrof);	1672	add_weight (this, op->weight * op->nrof);
1936	}	1673	}
1937	else	1674	else
1938	add_weight (where, (op->weight + op->carrying));	1675	add_weight (this, (op->weight + op->carrying));
1939		1676
1940	otmp = is_player_inv (where);	1677	otmp = this->in_player ();
1941	if (otmp && otmp->contr != NULL)	1678	if (otmp && otmp->contr)
1942	{
1943	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1679	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1944	fix_player (otmp);	1680	otmp->update_stats ();
1945	}
1946		1681
1947	op->map = NULL;	1682	op->map = 0;
1948	op->env = where;	1683	op->env = this;
1949	op->above = NULL;	1684	op->above = 0;
1950	op->below = NULL;	1685	op->below = 0;
1951	op->x = 0, op->y = 0;	1686	op->x = 0, op->y = 0;
1952		1687
1953	/* reset the light list and los of the players on the map */	1688	/* reset the light list and los of the players on the map */
1954	if ((op->glow_radius != 0) && where->map)	1689	if ((op->glow_radius != 0) && map)
1955	{	1690	{
1956	#ifdef DEBUG_LIGHTS	1691	#ifdef DEBUG_LIGHTS
1957	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);	1692	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1958	#endif /* DEBUG_LIGHTS */	1693	#endif /* DEBUG_LIGHTS */
1959	if (MAP_DARKNESS (where->map))	1694	if (map->darkness)
1960	update_all_los (where->map, where->x, where->y);	1695	update_all_los (map, x, y);
1961	}	1696	}
1962		1697
1963	/* Client has no idea of ordering so lets not bother ordering it here.	1698	/* Client has no idea of ordering so lets not bother ordering it here.
1964	* It sure simplifies this function...	1699	* It sure simplifies this function...
1965	*/	1700	*/
1966	if (where->inv == NULL)	1701	if (!inv)
1967	where->inv = op;	1702	inv = op;
1968	else	1703	else
1969	{	1704	{
1970	op->below = where->inv;	1705	op->below = inv;
1971	op->below->above = op;	1706	op->below->above = op;
1972	where->inv = op;	1707	inv = op;
1973	}	1708	}
		1709
		1710	INVOKE_OBJECT (INSERT, this);
		1711
1974	return op;	1712	return op;
1975	}	1713	}
1976		1714
1977	/*	1715	/*
1978	* Checks if any objects has a move_type that matches objects	1716	* Checks if any objects has a move_type that matches objects
…		…
1992	*	1730	*
1993	* MSW 2001-07-08: Check all objects on space, not just those below	1731	* MSW 2001-07-08: Check all objects on space, not just those below
1994	* object being inserted. insert_ob_in_map may not put new objects	1732	* object being inserted. insert_ob_in_map may not put new objects
1995	* on top.	1733	* on top.
1996	*/	1734	*/
1997
1998	int	1735	int
1999	check_move_on (object *op, object *originator)	1736	check_move_on (object *op, object *originator)
2000	{	1737	{
2001	object *	1738	object *tmp;
2002	tmp;	1739	maptile *m = op->map;
2003	tag_t
2004	tag;
2005	mapstruct *
2006	m = op->map;
2007	int
2008	x = op->x, y = op->y;	1740	int x = op->x, y = op->y;
2009	MoveType	1741
2010	move_on,	1742	MoveType move_on, move_slow, move_block;
2011	move_slow,
2012	move_block;
2013		1743
2014	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1744	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2015	return 0;	1745	return 0;
2016
2017	tag = op->count;
2018		1746
2019	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1747	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
2020	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1748	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
2021	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1749	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
2022		1750
…		…
2038		1766
2039	/* The objects have to be checked from top to bottom.	1767	/* The objects have to be checked from top to bottom.
2040	* Hence, we first go to the top:	1768	* Hence, we first go to the top:
2041	*/	1769	*/
2042		1770
2043	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1771	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
2044	{	1772	{
2045	/* Trim the search when we find the first other spell effect	1773	/* Trim the search when we find the first other spell effect
2046	* this helps performance so that if a space has 50 spell objects,	1774	* this helps performance so that if a space has 50 spell objects,
2047	* we don't need to check all of them.	1775	* we don't need to check all of them.
2048	*/	1776	*/
2049	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))	1777	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
2050	break;	1778	break;
2051	}	1779	}
		1780
2052	for (; tmp != NULL; tmp = tmp->below)	1781	for (; tmp; tmp = tmp->below)
2053	{	1782	{
2054	if (tmp == op)	1783	if (tmp == op)
2055	continue; /* Can't apply yourself */	1784	continue; /* Can't apply yourself */
2056		1785
2057	/* Check to see if one of the movement types should be slowed down.	1786	/* Check to see if one of the movement types should be slowed down.
…		…
2065	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1794	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2066	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1795	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2067	{	1796	{
2068		1797
2069	float	1798	float
2070	diff;
2071
2072	diff = tmp->move_slow_penalty * FABS (op->speed);	1799	diff = tmp->move_slow_penalty * FABS (op->speed);
		1800
2073	if (op->type == PLAYER)	1801	if (op->type == PLAYER)
2074	{
2075	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1802	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2076	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1803	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2077	{
2078	diff /= 4.0;	1804	diff /= 4.0;
2079	}	1805
2080	}
2081	op->speed_left -= diff;	1806	op->speed_left -= diff;
2082	}	1807	}
2083	}	1808	}
2084		1809
2085	/* Basically same logic as above, except now for actual apply. */	1810	/* Basically same logic as above, except now for actual apply. */
2086	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1811	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2087	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1812	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2088	{	1813	{
2089
2090	move_apply (tmp, op, originator);	1814	move_apply (tmp, op, originator);
		1815
2091	if (was_destroyed (op, tag))	1816	if (op->destroyed ())
2092	return 1;	1817	return 1;
2093		1818
2094	/* what the person/creature stepped onto has moved the object	1819	/* what the person/creature stepped onto has moved the object
2095	* someplace new. Don't process any further - if we did,	1820	* someplace new. Don't process any further - if we did,
2096	* have a feeling strange problems would result.	1821	* have a feeling strange problems would result.
2097	*/	1822	*/
2098	if (op->map != m || op->x != x || op->y != y)	1823	if (op->map != m || op->x != x || op->y != y)
2099	return 0;	1824	return 0;
2100	}	1825	}
2101	}	1826	}
		1827
2102	return 0;	1828	return 0;
2103	}	1829	}
2104		1830
2105	/*	1831	/*
2106	* present_arch(arch, map, x, y) searches for any objects with	1832	* present_arch(arch, map, x, y) searches for any objects with
2107	* a matching archetype at the given map and coordinates.	1833	* a matching archetype at the given map and coordinates.
2108	* The first matching object is returned, or NULL if none.	1834	* The first matching object is returned, or NULL if none.
2109	*/	1835	*/
2110
2111	object *	1836	object *
2112	present_arch (const archetype *at, mapstruct *m, int x, int y)	1837	present_arch (const archetype *at, maptile *m, int x, int y)
2113	{	1838	{
2114	object *
2115	tmp;
2116
2117	if (m == NULL || out_of_map (m, x, y))	1839	if (m == NULL || out_of_map (m, x, y))
2118	{	1840	{
2119	LOG (llevError, "Present_arch called outside map.\n");	1841	LOG (llevError, "Present_arch called outside map.\n");
2120	return NULL;	1842	return NULL;
2121	}	1843	}
		1844
2122	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1845	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2123	if (tmp->arch == at)	1846	if (tmp->arch == at)
2124	return tmp;	1847	return tmp;
		1848
2125	return NULL;	1849	return NULL;
2126	}	1850	}
2127		1851
2128	/*	1852	/*
2129	* present(type, map, x, y) searches for any objects with	1853	* present(type, map, x, y) searches for any objects with
2130	* a matching type variable at the given map and coordinates.	1854	* a matching type variable at the given map and coordinates.
2131	* The first matching object is returned, or NULL if none.	1855	* The first matching object is returned, or NULL if none.
2132	*/	1856	*/
2133
2134	object *	1857	object *
2135	present (unsigned char type, mapstruct *m, int x, int y)	1858	present (unsigned char type, maptile *m, int x, int y)
2136	{	1859	{
2137	object *
2138	tmp;
2139
2140	if (out_of_map (m, x, y))	1860	if (out_of_map (m, x, y))
2141	{	1861	{
2142	LOG (llevError, "Present called outside map.\n");	1862	LOG (llevError, "Present called outside map.\n");
2143	return NULL;	1863	return NULL;
2144	}	1864	}
		1865
2145	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1866	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2146	if (tmp->type == type)	1867	if (tmp->type == type)
2147	return tmp;	1868	return tmp;
		1869
2148	return NULL;	1870	return NULL;
2149	}	1871	}
2150		1872
2151	/*	1873	/*
2152	* present_in_ob(type, object) searches for any objects with	1874	* present_in_ob(type, object) searches for any objects with
2153	* a matching type variable in the inventory of the given object.	1875	* a matching type variable in the inventory of the given object.
2154	* The first matching object is returned, or NULL if none.	1876	* The first matching object is returned, or NULL if none.
2155	*/	1877	*/
2156
2157	object *	1878	object *
2158	present_in_ob (unsigned char type, const object *op)	1879	present_in_ob (unsigned char type, const object *op)
2159	{	1880	{
2160	object *
2161	tmp;
2162
2163	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1881	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2164	if (tmp->type == type)	1882	if (tmp->type == type)
2165	return tmp;	1883	return tmp;
		1884
2166	return NULL;	1885	return NULL;
2167	}	1886	}
2168		1887
2169	/*	1888	/*
2170	* present_in_ob (type, str, object) searches for any objects with	1889	* present_in_ob (type, str, object) searches for any objects with
…		…
2178	* str is the string to match against. Note that we match against	1897	* str is the string to match against. Note that we match against
2179	* the object name, not the archetype name. this is so that the	1898	* the object name, not the archetype name. this is so that the
2180	* spell code can use one object type (force), but change it's name	1899	* spell code can use one object type (force), but change it's name
2181	* to be unique.	1900	* to be unique.
2182	*/	1901	*/
2183
2184	object *	1902	object *
2185	present_in_ob_by_name (int type, const char *str, const object *op)	1903	present_in_ob_by_name (int type, const char *str, const object *op)
2186	{	1904	{
2187	object *
2188	tmp;
2189
2190	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1905	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2191	{
2192	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1906	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2193	return tmp;	1907	return tmp;
2194	}	1908
2195	return NULL;	1909	return 0;
2196	}	1910	}
2197		1911
2198	/*	1912	/*
2199	* present_arch_in_ob(archetype, object) searches for any objects with	1913	* present_arch_in_ob(archetype, object) searches for any objects with
2200	* a matching archetype in the inventory of the given object.	1914	* a matching archetype in the inventory of the given object.
2201	* The first matching object is returned, or NULL if none.	1915	* The first matching object is returned, or NULL if none.
2202	*/	1916	*/
2203
2204	object *	1917	object *
2205	present_arch_in_ob (const archetype *at, const object *op)	1918	present_arch_in_ob (const archetype *at, const object *op)
2206	{	1919	{
2207	object *
2208	tmp;
2209
2210	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1920	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2211	if (tmp->arch == at)	1921	if (tmp->arch == at)
2212	return tmp;	1922	return tmp;
		1923
2213	return NULL;	1924	return NULL;
2214	}	1925	}
2215		1926
2216	/*	1927	/*
2217	* activate recursively a flag on an object inventory	1928	* activate recursively a flag on an object inventory
2218	*/	1929	*/
2219	void	1930	void
2220	flag_inv (object *op, int flag)	1931	flag_inv (object *op, int flag)
2221	{	1932	{
2222	object *
2223	tmp;
2224
2225	if (op->inv)	1933	if (op->inv)
2226	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1934	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2227	{	1935	{
2228	SET_FLAG (tmp, flag);	1936	SET_FLAG (tmp, flag);
2229	flag_inv (tmp, flag);	1937	flag_inv (tmp, flag);
2230	}	1938	}
2231	} /*	1939	}
		1940
		1941	/*
2232	* desactivate recursively a flag on an object inventory	1942	* deactivate recursively a flag on an object inventory
2233	*/	1943	*/
2234	void	1944	void
2235	unflag_inv (object *op, int flag)	1945	unflag_inv (object *op, int flag)
2236	{	1946	{
2237	object *
2238	tmp;
2239
2240	if (op->inv)	1947	if (op->inv)
2241	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1948	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2242	{	1949	{
2243	CLEAR_FLAG (tmp, flag);	1950	CLEAR_FLAG (tmp, flag);
2244	unflag_inv (tmp, flag);	1951	unflag_inv (tmp, flag);
2245	}	1952	}
2246	}	1953	}
…		…
2249	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1956	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2250	* all it's inventory (recursively).	1957	* all it's inventory (recursively).
2251	* If checksums are used, a player will get set_cheat called for	1958	* If checksums are used, a player will get set_cheat called for
2252	* him/her-self and all object carried by a call to this function.	1959	* him/her-self and all object carried by a call to this function.
2253	*/	1960	*/
2254
2255	void	1961	void
2256	set_cheat (object *op)	1962	set_cheat (object *op)
2257	{	1963	{
2258	SET_FLAG (op, FLAG_WAS_WIZ);	1964	SET_FLAG (op, FLAG_WAS_WIZ);
2259	flag_inv (op, FLAG_WAS_WIZ);	1965	flag_inv (op, FLAG_WAS_WIZ);
…		…
2278	* because arch_blocked (now ob_blocked) needs to know the movement type	1984	* because arch_blocked (now ob_blocked) needs to know the movement type
2279	* to know if the space in question will block the object. We can't use	1985	* to know if the space in question will block the object. We can't use
2280	* the archetype because that isn't correct if the monster has been	1986	* the archetype because that isn't correct if the monster has been
2281	* customized, changed states, etc.	1987	* customized, changed states, etc.
2282	*/	1988	*/
2283
2284	int	1989	int
2285	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1990	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2286	{	1991	{
2287	int
2288	i,
2289	index = 0, flag;	1992	int index = 0, flag;
2290	static int
2291	altern[SIZEOFFREE];	1993	int altern[SIZEOFFREE];
2292		1994
2293	for (i = start; i < stop; i++)	1995	for (int i = start; i < stop; i++)
2294	{	1996	{
2295	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1997	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2296	if (!flag)	1998	if (!flag)
2297	altern[index++] = i;	1999	altern [index++] = i;
2298		2000
2299	/* Basically, if we find a wall on a space, we cut down the search size.	2001	/* Basically, if we find a wall on a space, we cut down the search size.
2300	* In this way, we won't return spaces that are on another side of a wall.	2002	* In this way, we won't return spaces that are on another side of a wall.
2301	* This mostly work, but it cuts down the search size in all directions -	2003	* This mostly work, but it cuts down the search size in all directions -
2302	* if the space being examined only has a wall to the north and empty	2004	* if the space being examined only has a wall to the north and empty
2303	* spaces in all the other directions, this will reduce the search space	2005	* spaces in all the other directions, this will reduce the search space
2304	* to only the spaces immediately surrounding the target area, and	2006	* to only the spaces immediately surrounding the target area, and
2305	* won't look 2 spaces south of the target space.	2007	* won't look 2 spaces south of the target space.
2306	*/	2008	*/
2307	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2009	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2308	stop = maxfree[i];	2010	stop = maxfree[i];
2309	}	2011	}
		2012
2310	if (!index)	2013	if (!index)
2311	return -1;	2014	return -1;
		2015
2312	return altern[RANDOM () % index];	2016	return altern[RANDOM () % index];
2313	}	2017	}
2314		2018
2315	/*	2019	/*
2316	* find_first_free_spot(archetype, mapstruct, x, y) works like	2020	* find_first_free_spot(archetype, maptile, x, y) works like
2317	* find_free_spot(), but it will search max number of squares.	2021	* find_free_spot(), but it will search max number of squares.
2318	* But it will return the first available spot, not a random choice.	2022	* But it will return the first available spot, not a random choice.
2319	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2023	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2320	*/	2024	*/
2321
2322	int	2025	int
2323	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2026	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2324	{	2027	{
2325	int
2326	i;
2327
2328	for (i = 0; i < SIZEOFFREE; i++)	2028	for (int i = 0; i < SIZEOFFREE; i++)
2329	{
2330	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2029	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2331	return i;	2030	return i;
2332	}	2031
2333	return -1;	2032	return -1;
2334	}	2033	}
2335		2034
2336	/*	2035	/*
2337	* The function permute(arr, begin, end) randomly reorders the array	2036	* The function permute(arr, begin, end) randomly reorders the array
2338	* arr[begin..end-1].	2037	* arr[begin..end-1].
		2038	* now uses a fisher-yates shuffle, old permute was broken
2339	*/	2039	*/
2340	static void	2040	static void
2341	permute (int *arr, int begin, int end)	2041	permute (int *arr, int begin, int end)
2342	{	2042	{
2343	int	2043	arr += begin;
2344	i,
2345	j,
2346	tmp,
2347	len;
2348
2349	len = end - begin;	2044	end -= begin;
2350	for (i = begin; i < end; i++)
2351	{
2352	j = begin + RANDOM () % len;
2353		2045
2354	tmp = arr[i];	2046	while (--end)
2355	arr[i] = arr[j];	2047	swap (arr [end], arr [RANDOM () % (end + 1)]);
2356	arr[j] = tmp;
2357	}
2358	}	2048	}
2359		2049
2360	/* new function to make monster searching more efficient, and effective!	2050	/* new function to make monster searching more efficient, and effective!
2361	* This basically returns a randomized array (in the passed pointer) of	2051	* This basically returns a randomized array (in the passed pointer) of
2362	* the spaces to find monsters. In this way, it won't always look for	2052	* the spaces to find monsters. In this way, it won't always look for
…		…
2365	* the 3x3 area will be searched, just not in a predictable order.	2055	* the 3x3 area will be searched, just not in a predictable order.
2366	*/	2056	*/
2367	void	2057	void
2368	get_search_arr (int *search_arr)	2058	get_search_arr (int *search_arr)
2369	{	2059	{
2370	int	2060	int i;
2371	i;
2372		2061
2373	for (i = 0; i < SIZEOFFREE; i++)	2062	for (i = 0; i < SIZEOFFREE; i++)
2374	{
2375	search_arr[i] = i;	2063	search_arr[i] = i;
2376	}
2377		2064
2378	permute (search_arr, 1, SIZEOFFREE1 + 1);	2065	permute (search_arr, 1, SIZEOFFREE1 + 1);
2379	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2066	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2380	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2067	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2381	}	2068	}
…		…
2390	* Perhaps incorrectly, but I'm making the assumption that exclude	2077	* Perhaps incorrectly, but I'm making the assumption that exclude
2391	* is actually want is going to try and move there. We need this info	2078	* is actually want is going to try and move there. We need this info
2392	* because we have to know what movement the thing looking to move	2079	* because we have to know what movement the thing looking to move
2393	* there is capable of.	2080	* there is capable of.
2394	*/	2081	*/
2395
2396	int	2082	int
2397	find_dir (mapstruct *m, int x, int y, object *exclude)	2083	find_dir (maptile *m, int x, int y, object *exclude)
2398	{	2084	{
2399	int
2400	i,
2401	max = SIZEOFFREE, mflags;	2085	int i, max = SIZEOFFREE, mflags;
2402	sint16	2086
2403	nx,	2087	sint16 nx, ny;
2404	ny;
2405	object *	2088	object *tmp;
2406	tmp;	2089	maptile *mp;
2407	mapstruct *	2090
2408	mp;	2091	MoveType blocked, move_type;
2409	MoveType
2410	blocked,
2411	move_type;
2412		2092
2413	if (exclude && exclude->head)	2093	if (exclude && exclude->head)
2414	{	2094	{
2415	exclude = exclude->head;	2095	exclude = exclude->head;
2416	move_type = exclude->move_type;	2096	move_type = exclude->move_type;
…		…
2426	mp = m;	2106	mp = m;
2427	nx = x + freearr_x[i];	2107	nx = x + freearr_x[i];
2428	ny = y + freearr_y[i];	2108	ny = y + freearr_y[i];
2429		2109
2430	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2110	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2111
2431	if (mflags & P_OUT_OF_MAP)	2112	if (mflags & P_OUT_OF_MAP)
2432	{
2433	max = maxfree[i];	2113	max = maxfree[i];
2434	}
2435	else	2114	else
2436	{	2115	{
2437	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2116	mapspace &ms = mp->at (nx, ny);
		2117
		2118	blocked = ms.move_block;
2438		2119
2439	if ((move_type & blocked) == move_type)	2120	if ((move_type & blocked) == move_type)
2440	{
2441	max = maxfree[i];	2121	max = maxfree[i];
2442	}
2443	else if (mflags & P_IS_ALIVE)	2122	else if (mflags & P_IS_ALIVE)
2444	{	2123	{
2445	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2124	for (tmp = ms.bot; tmp; tmp = tmp->above)
2446	{	2125	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2447	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2126	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2448	{
2449	break;	2127	break;
2450	}	2128
2451	}
2452	if (tmp)	2129	if (tmp)
2453	{
2454	return freedir[i];	2130	return freedir[i];
2455	}
2456	}	2131	}
2457	}	2132	}
2458	}	2133	}
		2134
2459	return 0;	2135	return 0;
2460	}	2136	}
2461		2137
2462	/*	2138	/*
2463	* distance(object 1, object 2) will return the square of the	2139	* distance(object 1, object 2) will return the square of the
2464	* distance between the two given objects.	2140	* distance between the two given objects.
2465	*/	2141	*/
2466
2467	int	2142	int
2468	distance (const object *ob1, const object *ob2)	2143	distance (const object *ob1, const object *ob2)
2469	{	2144	{
2470	int
2471	i;
2472
2473	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2145	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2474	return i;
2475	}	2146	}
2476		2147
2477	/*	2148	/*
2478	* find_dir_2(delta-x,delta-y) will return a direction in which	2149	* find_dir_2(delta-x,delta-y) will return a direction in which
2479	* an object which has subtracted the x and y coordinates of another	2150	* an object which has subtracted the x and y coordinates of another
2480	* object, needs to travel toward it.	2151	* object, needs to travel toward it.
2481	*/	2152	*/
2482
2483	int	2153	int
2484	find_dir_2 (int x, int y)	2154	find_dir_2 (int x, int y)
2485	{	2155	{
2486	int	2156	int q;
2487	q;
2488		2157
2489	if (y)	2158	if (y)
2490	q = x * 100 / y;	2159	q = x * 100 / y;
2491	else if (x)	2160	else if (x)
2492	q = -300 * x;	2161	q = -300 * x;
…		…
2527	int	2196	int
2528	absdir (int d)	2197	absdir (int d)
2529	{	2198	{
2530	while (d < 1)	2199	while (d < 1)
2531	d += 8;	2200	d += 8;
		2201
2532	while (d > 8)	2202	while (d > 8)
2533	d -= 8;	2203	d -= 8;
		2204
2534	return d;	2205	return d;
2535	}	2206	}
2536		2207
2537	/*	2208	/*
2538	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2209	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
…		…
2540	*/	2211	*/
2541		2212
2542	int	2213	int
2543	dirdiff (int dir1, int dir2)	2214	dirdiff (int dir1, int dir2)
2544	{	2215	{
2545	int	2216	int d;
2546	d;
2547		2217
2548	d = abs (dir1 - dir2);	2218	d = abs (dir1 - dir2);
2549	if (d > 4)	2219	if (d > 4)
2550	d = 8 - d;	2220	d = 8 - d;
		2221
2551	return d;	2222	return d;
2552	}	2223	}
2553		2224
2554	/* peterm:	2225	/* peterm:
2555	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2226	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2558	* This basically means that if direction is 15, then it could either go	2229	* This basically means that if direction is 15, then it could either go
2559	* direction 4, 14, or 16 to get back to where we are.	2230	* direction 4, 14, or 16 to get back to where we are.
2560	* Moved from spell_util.c to object.c with the other related direction	2231	* Moved from spell_util.c to object.c with the other related direction
2561	* functions.	2232	* functions.
2562	*/	2233	*/
2563
2564	int
2565	reduction_dir[SIZEOFFREE][3] = {	2234	int reduction_dir[SIZEOFFREE][3] = {
2566	{0, 0, 0}, /* 0 */	2235	{0, 0, 0}, /* 0 */
2567	{0, 0, 0}, /* 1 */	2236	{0, 0, 0}, /* 1 */
2568	{0, 0, 0}, /* 2 */	2237	{0, 0, 0}, /* 2 */
2569	{0, 0, 0}, /* 3 */	2238	{0, 0, 0}, /* 3 */
2570	{0, 0, 0}, /* 4 */	2239	{0, 0, 0}, /* 4 */
…		…
2618	* find a path to that monster that we found. If not,	2287	* find a path to that monster that we found. If not,
2619	* we don't bother going toward it. Returns 1 if we	2288	* we don't bother going toward it. Returns 1 if we
2620	* can see a direct way to get it	2289	* can see a direct way to get it
2621	* Modified to be map tile aware -.MSW	2290	* Modified to be map tile aware -.MSW
2622	*/	2291	*/
2623
2624
2625	int	2292	int
2626	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2293	can_see_monsterP (maptile *m, int x, int y, int dir)
2627	{	2294	{
2628	sint16	2295	sint16 dx, dy;
2629	dx,
2630	dy;
2631	int
2632	mflags;	2296	int mflags;
2633		2297
2634	if (dir < 0)	2298	if (dir < 0)
2635	return 0; /* exit condition: invalid direction */	2299	return 0; /* exit condition: invalid direction */
2636		2300
2637	dx = x + freearr_x[dir];	2301	dx = x + freearr_x[dir];
…		…
2650	return 0;	2314	return 0;
2651		2315
2652	/* yes, can see. */	2316	/* yes, can see. */
2653	if (dir < 9)	2317	if (dir < 9)
2654	return 1;	2318	return 1;
		2319
2655	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2320	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2656	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2321	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2322	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2657	}	2323	}
2658
2659
2660		2324
2661	/*	2325	/*
2662	* can_pick(picker, item): finds out if an object is possible to be	2326	* can_pick(picker, item): finds out if an object is possible to be
2663	* picked up by the picker. Returnes 1 if it can be	2327	* picked up by the picker. Returnes 1 if it can be
2664	* picked up, otherwise 0.	2328	* picked up, otherwise 0.
…		…
2675	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2339	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2676	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2340	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2677	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2341	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2678	}	2342	}
2679		2343
2680
2681	/*	2344	/*
2682	* create clone from object to another	2345	* create clone from object to another
2683	*/	2346	*/
2684	object *	2347	object *
2685	object_create_clone (object *asrc)	2348	object_create_clone (object *asrc)
2686	{	2349	{
2687	object *
2688	dst = NULL, *tmp, *src, *part, *prev, *item;	2350	object *dst = 0, *tmp, *src, *part, *prev, *item;
2689		2351
2690	if (!asrc)	2352	if (!asrc)
2691	return NULL;	2353	return 0;
		2354
2692	src = asrc;	2355	src = asrc;
2693	if (src->head)	2356	if (src->head)
2694	src = src->head;	2357	src = src->head;
2695		2358
2696	prev = NULL;	2359	prev = 0;
2697	for (part = src; part; part = part->more)	2360	for (part = src; part; part = part->more)
2698	{	2361	{
2699	tmp = get_object ();	2362	tmp = part->clone ();
2700	copy_object (part, tmp);
2701	tmp->x -= src->x;	2363	tmp->x -= src->x;
2702	tmp->y -= src->y;	2364	tmp->y -= src->y;
		2365
2703	if (!part->head)	2366	if (!part->head)
2704	{	2367	{
2705	dst = tmp;	2368	dst = tmp;
2706	tmp->head = NULL;	2369	tmp->head = 0;
2707	}	2370	}
2708	else	2371	else
2709	{
2710	tmp->head = dst;	2372	tmp->head = dst;
2711	}	2373
2712	tmp->more = NULL;	2374	tmp->more = 0;
		2375
2713	if (prev)	2376	if (prev)
2714	prev->more = tmp;	2377	prev->more = tmp;
		2378
2715	prev = tmp;	2379	prev = tmp;
2716	}	2380	}
2717		2381
2718	/*** copy inventory ***/
2719	for (item = src->inv; item; item = item->below)	2382	for (item = src->inv; item; item = item->below)
2720	{
2721	(void) insert_ob_in_ob (object_create_clone (item), dst);	2383	insert_ob_in_ob (object_create_clone (item), dst);
2722	}
2723		2384
2724	return dst;	2385	return dst;
2725	}	2386	}
2726		2387
2727	/* return true if the object was destroyed, 0 otherwise */
2728	int
2729	was_destroyed (const object *op, tag_t old_tag)
2730	{
2731	/* checking for FLAG_FREED isn't necessary, but makes this function more
2732	* robust */
2733	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2734	}
2735
2736	/* GROS - Creates an object using a string representing its content. */	2388	/* GROS - Creates an object using a string representing its content. */
2737
2738	/* Basically, we save the content of the string to a temp file, then call */	2389	/* Basically, we save the content of the string to a temp file, then call */
2739
2740	/* load_object on it. I admit it is a highly inefficient way to make things, */	2390	/* load_object on it. I admit it is a highly inefficient way to make things, */
2741
2742	/* but it was simple to make and allows reusing the load_object function. */	2391	/* but it was simple to make and allows reusing the load_object function. */
2743
2744	/* Remember not to use load_object_str in a time-critical situation. */	2392	/* Remember not to use load_object_str in a time-critical situation. */
2745
2746	/* Also remember that multiparts objects are not supported for now. */	2393	/* Also remember that multiparts objects are not supported for now. */
2747
2748	object *	2394	object *
2749	load_object_str (const char *obstr)	2395	load_object_str (const char *obstr)
2750	{	2396	{
2751	object *	2397	object *op;
2752	op;
2753	char
2754	filename[MAX_BUF];	2398	char filename[MAX_BUF];
2755		2399
2756	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);	2400	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2757		2401
2758	FILE *
2759	tempfile = fopen (filename, "w");	2402	FILE *tempfile = fopen (filename, "w");
2760		2403
2761	if (tempfile == NULL)	2404	if (tempfile == NULL)
2762	{	2405	{
2763	LOG (llevError, "Error - Unable to access load object temp file\n");	2406	LOG (llevError, "Error - Unable to access load object temp file\n");
2764	return NULL;	2407	return NULL;
2765	};	2408	}
		2409
2766	fprintf (tempfile, obstr);	2410	fprintf (tempfile, obstr);
2767	fclose (tempfile);	2411	fclose (tempfile);
2768		2412
2769	op = get_object ();	2413	op = object::create ();
2770		2414
2771	object_thawer	2415	object_thawer thawer (filename);
2772	thawer (filename);
2773		2416
2774	if (thawer)	2417	if (thawer)
2775	load_object (thawer, op, 0);	2418	load_object (thawer, op, 0);
2776		2419
2777	LOG (llevDebug, " load str completed, object=%s\n", &op->name);	2420	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
…		…
2785	* returns NULL if no match.	2428	* returns NULL if no match.
2786	*/	2429	*/
2787	object *	2430	object *
2788	find_obj_by_type_subtype (const object *who, int type, int subtype)	2431	find_obj_by_type_subtype (const object *who, int type, int subtype)
2789	{	2432	{
2790	object *
2791	tmp;
2792
2793	for (tmp = who->inv; tmp; tmp = tmp->below)	2433	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2794	if (tmp->type == type && tmp->subtype == subtype)	2434	if (tmp->type == type && tmp->subtype == subtype)
2795	return tmp;	2435	return tmp;
2796		2436
2797	return NULL;	2437	return 0;
2798	}	2438	}
2799		2439
2800	/* If ob has a field named key, return the link from the list,	2440	/* If ob has a field named key, return the link from the list,
2801	* otherwise return NULL.	2441	* otherwise return NULL.
2802	*	2442	*
…		…
2804	* do the desired thing.	2444	* do the desired thing.
2805	*/	2445	*/
2806	key_value *	2446	key_value *
2807	get_ob_key_link (const object *ob, const char *key)	2447	get_ob_key_link (const object *ob, const char *key)
2808	{	2448	{
2809	key_value *
2810	link;
2811
2812	for (link = ob->key_values; link != NULL; link = link->next)	2449	for (key_value *link = ob->key_values; link; link = link->next)
2813	{
2814	if (link->key == key)	2450	if (link->key == key)
2815	{
2816	return link;	2451	return link;
2817	}
2818	}
2819		2452
2820	return NULL;	2453	return 0;
2821	}	2454	}
2822		2455
2823	/*	2456	/*
2824	* Returns the value of op has an extra_field for key, or NULL.	2457	* Returns the value of op has an extra_field for key, or NULL.
2825	*	2458	*
…		…
2828	* The returned string is shared.	2461	* The returned string is shared.
2829	*/	2462	*/
2830	const char *	2463	const char *
2831	get_ob_key_value (const object *op, const char *const key)	2464	get_ob_key_value (const object *op, const char *const key)
2832	{	2465	{
2833	key_value *	2466	key_value *link;
2834	link;	2467	shstr_cmp canonical_key (key);
2835	const char *
2836	canonical_key;
2837		2468
2838	canonical_key = shstr::find (key);
2839
2840	if (canonical_key == NULL)	2469	if (!canonical_key)
2841	{	2470	{
2842	/* 1. There being a field named key on any object	2471	/* 1. There being a field named key on any object
2843	* implies there'd be a shared string to find.	2472	* implies there'd be a shared string to find.
2844	* 2. Since there isn't, no object has this field.	2473	* 2. Since there isn't, no object has this field.
2845	* 3. Therefore, *this* object doesn't have this field.	2474	* 3. Therefore, *this* object doesn't have this field.
2846	*/	2475	*/
2847	return NULL;	2476	return 0;
2848	}	2477	}
2849		2478
2850	/* This is copied from get_ob_key_link() above -	2479	/* This is copied from get_ob_key_link() above -
2851	* only 4 lines, and saves the function call overhead.	2480	* only 4 lines, and saves the function call overhead.
2852	*/	2481	*/
2853	for (link = op->key_values; link != NULL; link = link->next)	2482	for (link = op->key_values; link; link = link->next)
2854	{
2855	if (link->key == canonical_key)	2483	if (link->key == canonical_key)
2856	{
2857	return link->value;	2484	return link->value;
2858	}	2485
2859	}
2860	return NULL;	2486	return 0;
2861	}	2487	}
2862		2488
2863		2489
2864	/*	2490	/*
2865	* Updates the canonical_key in op to value.	2491	* Updates the canonical_key in op to value.
…		…
2872	* Returns TRUE on success.	2498	* Returns TRUE on success.
2873	*/	2499	*/
2874	int	2500	int
2875	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)	2501	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2876	{	2502	{
2877	key_value *
2878	field = NULL, *last = NULL;	2503	key_value *field = NULL, *last = NULL;
2879		2504
2880	for (field = op->key_values; field != NULL; field = field->next)	2505	for (field = op->key_values; field != NULL; field = field->next)
2881	{	2506	{
2882	if (field->key != canonical_key)	2507	if (field->key != canonical_key)
2883	{	2508	{
…		…
2901	if (last)	2526	if (last)
2902	last->next = field->next;	2527	last->next = field->next;
2903	else	2528	else
2904	op->key_values = field->next;	2529	op->key_values = field->next;
2905		2530
2906	delete
2907	field;	2531	delete field;
2908	}	2532	}
2909	}	2533	}
2910	return TRUE;	2534	return TRUE;
2911	}	2535	}
2912	/* IF we get here, key doesn't exist */	2536	/* IF we get here, key doesn't exist */
2913		2537
2914	/* No field, we'll have to add it. */	2538	/* No field, we'll have to add it. */
2915		2539
2916	if (!add_key)	2540	if (!add_key)
2917	{
2918	return FALSE;	2541	return FALSE;
2919	}	2542
2920	/* There isn't any good reason to store a null	2543	/* There isn't any good reason to store a null
2921	* value in the key/value list. If the archetype has	2544	* value in the key/value list. If the archetype has
2922	* this key, then we should also have it, so shouldn't	2545	* this key, then we should also have it, so shouldn't
2923	* be here. If user wants to store empty strings,	2546	* be here. If user wants to store empty strings,
2924	* should pass in ""	2547	* should pass in ""
…		…
2947	* Returns TRUE on success.	2570	* Returns TRUE on success.
2948	*/	2571	*/
2949	int	2572	int
2950	set_ob_key_value (object *op, const char *key, const char *value, int add_key)	2573	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2951	{	2574	{
2952	shstr
2953	key_ (key);	2575	shstr key_ (key);
2954		2576
2955	return set_ob_key_value_s (op, key_, value, add_key);	2577	return set_ob_key_value_s (op, key_, value, add_key);
2956	}	2578	}
		2579
		2580	object::depth_iterator::depth_iterator (object *container)
		2581	: iterator_base (container)
		2582	{
		2583	while (item->inv)
		2584	item = item->inv;
		2585	}
		2586
		2587	void
		2588	object::depth_iterator::next ()
		2589	{
		2590	if (item->below)
		2591	{
		2592	item = item->below;
		2593
		2594	while (item->inv)
		2595	item = item->inv;
		2596	}
		2597	else
		2598	item = item->env;
		2599	}
		2600
		2601	// return a suitable string describing an objetc in enough detail to find it
		2602	const char *
		2603	object::debug_desc (char *info) const
		2604	{
		2605	char info2[256 * 3];
		2606	char *p = info;
		2607
		2608	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2609	count,
		2610	&name,
		2611	title ? " " : "",
		2612	title ? (const char *)title : "");
		2613
		2614	if (env)
		2615	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2616
		2617	if (map)
		2618	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2619
		2620	return info;
		2621	}
		2622
		2623	const char *
		2624	object::debug_desc () const
		2625	{
		2626	static char info[256 * 3];
		2627	return debug_desc (info);
		2628	}
		2629

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