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Comparing deliantra/server/common/object.C (file contents):
Revision 1.26 by root, Mon Sep 11 11:46:52 2006 UTC vs.
Revision 1.84 by root, Mon Dec 25 14:54:44 2006 UTC

1
2	/*
3	* static char *rcsid_object_c =
4	* "$Id: object.C,v 1.26 2006/09/11 11:46:52 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;
…		…
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, 3);
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	update_ob_speed (dst);
		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	update_ob_speed (object *op)
706	{	560	{
707	extern int arch_init;	561	extern int arch_init;
708		562
…		…
717	abort ();	571	abort ();
718	#else	572	#else
719	op->speed = 0;	573	op->speed = 0;
720	#endif	574	#endif
721	}	575	}
		576
722	if (arch_init)	577	if (arch_init)
723	{
724	return;	578	return;
725	}	579
726	if (FABS (op->speed) > MIN_ACTIVE_SPEED)	580	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
727	{	581	{
728	/* If already on active list, don't do anything */	582	/* If already on active list, don't do anything */
729	if (op->active_next || op->active_prev || op == active_objects)	583	if (op->active_next || op->active_prev || op == active_objects)
730	return;	584	return;
731		585
732	/* process_events() expects us to insert the object at the beginning	586	/* process_events() expects us to insert the object at the beginning
733	* of the list. */	587	* of the list. */
734	op->active_next = active_objects;	588	op->active_next = active_objects;
		589
735	if (op->active_next != NULL)	590	if (op->active_next != NULL)
736	op->active_next->active_prev = op;	591	op->active_next->active_prev = op;
		592
737	active_objects = op;	593	active_objects = op;
738	}	594	}
739	else	595	else
740	{	596	{
741	/* If not on the active list, nothing needs to be done */	597	/* If not on the active list, nothing needs to be done */
…		…
743	return;	599	return;
744		600
745	if (op->active_prev == NULL)	601	if (op->active_prev == NULL)
746	{	602	{
747	active_objects = op->active_next;	603	active_objects = op->active_next;
		604
748	if (op->active_next != NULL)	605	if (op->active_next != NULL)
749	op->active_next->active_prev = NULL;	606	op->active_next->active_prev = NULL;
750	}	607	}
751	else	608	else
752	{	609	{
753	op->active_prev->active_next = op->active_next;	610	op->active_prev->active_next = op->active_next;
		611
754	if (op->active_next)	612	if (op->active_next)
755	op->active_next->active_prev = op->active_prev;	613	op->active_next->active_prev = op->active_prev;
756	}	614	}
		615
757	op->active_next = NULL;	616	op->active_next = NULL;
758	op->active_prev = NULL;	617	op->active_prev = NULL;
759	}	618	}
760	}	619	}
761		620
…		…
789	op->active_next = NULL;	648	op->active_next = NULL;
790	op->active_prev = NULL;	649	op->active_prev = NULL;
791	}	650	}
792		651
793	/*	652	/*
794	* update_object() updates the array which represents the map.	653	* update_object() updates the the map.
795	* It takes into account invisible objects (and represent squares covered	654	* It takes into account invisible objects (and represent squares covered
796	* by invisible objects by whatever is below them (unless it's another	655	* by invisible objects by whatever is below them (unless it's another
797	* invisible object, etc...)	656	* invisible object, etc...)
798	* If the object being updated is beneath a player, the look-window	657	* 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	658	* of that player is updated (this might be a suboptimal way of
800	* updating that window, though, since update_object() is called _often_)	659	* updating that window, though, since update_object() is called _often_)
801	*	660	*
802	* action is a hint of what the caller believes need to be done.	661	* 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:	662	* current action are:
808	* UP_OBJ_INSERT: op was inserted	663	* UP_OBJ_INSERT: op was inserted
809	* UP_OBJ_REMOVE: op was removed	664	* UP_OBJ_REMOVE: op was removed
810	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	665	* 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.	666	* as that is easier than trying to look at what may have changed.
812	* UP_OBJ_FACE: only the objects face has changed.	667	* UP_OBJ_FACE: only the objects face has changed.
813	*/	668	*/
814
815	void	669	void
816	update_object (object *op, int action)	670	update_object (object *op, int action)
817	{	671	{
818	int update_now = 0, flags;
819	MoveType move_on, move_off, move_block, move_slow;	672	MoveType move_on, move_off, move_block, move_slow;
820		673
821	if (op == NULL)	674	if (op == NULL)
822	{	675	{
823	/* this should never happen */	676	/* this should never happen */
824	LOG (llevDebug, "update_object() called for NULL object.\n");	677	LOG (llevDebug, "update_object() called for NULL object.\n");
825	return;	678	return;
826	}	679	}
827		680
828	if (op->env != NULL)	681	if (op->env)
829	{	682	{
830	/* Animation is currently handled by client, so nothing	683	/* Animation is currently handled by client, so nothing
831	* to do in this case.	684	* to do in this case.
832	*/	685	*/
833	return;	686	return;
…		…
838	*/	691	*/
839	if (!op->map || op->map->in_memory == MAP_SAVING)	692	if (!op->map || op->map->in_memory == MAP_SAVING)
840	return;	693	return;
841		694
842	/* make sure the object is within map boundaries */	695	/* 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))	696	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
844	{	697	{
845	LOG (llevError, "update_object() called for object out of map!\n");	698	LOG (llevError, "update_object() called for object out of map!\n");
846	#ifdef MANY_CORES	699	#ifdef MANY_CORES
847	abort ();	700	abort ();
848	#endif	701	#endif
849	return;	702	return;
850	}	703	}
851		704
852	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	705	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		706
		707	if (m.flags_ & P_NEED_UPDATE)
		708	/* nop */;
859	if (action == UP_OBJ_INSERT)	709	else if (action == UP_OBJ_INSERT)
860	{	710	{
		711	// this is likely overkill, TODO: revisit (schmorp)
861	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	712	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))	713	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
865	update_now = 1;	714	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
866		715	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		716	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
867	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	717	|| (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)	718	|| (m.move_on | op->move_on ) != m.move_on
877	update_now = 1;
878
879	if ((move_off | op->move_off) != move_off)	719	|| (m.move_off | op->move_off ) != m.move_off
880	update_now = 1;	720	|| (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	721	/* This isn't perfect, but I don't expect a lot of objects to
883	* to have move_allow right now.	722	* to have move_allow right now.
884	*/	723	*/
885	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	724	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
886	update_now = 1;	725	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
887		726	m.flags_ = P_NEED_UPDATE;
888	if ((move_slow | op->move_slow) != move_slow)
889	update_now = 1;
890	}	727	}
891	/* if the object is being removed, we can't make intelligent	728	/* if the object is being removed, we can't make intelligent
892	* decisions, because remove_ob can't really pass the object	729	* decisions, because remove_ob can't really pass the object
893	* that is being removed.	730	* that is being removed.
894	*/	731	*/
895	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	732	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
896	{	733	m.flags_ = P_NEED_UPDATE;
897	update_now = 1;
898	}
899	else if (action == UP_OBJ_FACE)	734	else if (action == UP_OBJ_FACE)
900	{
901	/* Nothing to do for that case */	735	/* Nothing to do for that case */ ;
902	}
903	else	736	else
904	{
905	LOG (llevError, "update_object called with invalid action: %d\n", action);	737	LOG (llevError, "update_object called with invalid action: %d\n", action);
906	}
907		738
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)	739	if (op->more)
915	update_object (op->more, action);	740	update_object (op->more, action);
916	}	741	}
917		742
918	static unordered_vector<object *> mortals;	743	object::vector object::objects; // not yet used
919	static std::vector<object *> freed;	744	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		745
933	object::object ()	746	object::object ()
934	{	747	{
935	SET_FLAG (this, FLAG_REMOVED);	748	SET_FLAG (this, FLAG_REMOVED);
936		749
937	expmul = 1.0;	750	expmul = 1.0;
938	face = blank_face;	751	face = blank_face;
939	attacked_by_count = -1;
940	}	752	}
941		753
942	object::~object ()	754	object::~object ()
943	{	755	{
944	free_key_values (this);	756	free_key_values (this);
945	}	757	}
946		758
947	void object::link ()	759	void object::link ()
948	{	760	{
949	count = ++ob_count;	761	count = ++ob_count;
		762	uuid = gen_uuid ();
950		763
951	prev = 0;	764	prev = 0;
952	next = objects;	765	next = object::first;
953		766
954	if (objects)	767	if (object::first)
955	objects->prev = this;	768	object::first->prev = this;
956		769
957	objects = this;	770	object::first = this;
958	}	771	}
959		772
960	void object::unlink ()	773	void object::unlink ()
961	{	774	{
962	count = 0;	775	if (this == object::first)
		776	object::first = next;
963		777
964	/* Remove this object from the list of used objects */	778	/* Remove this object from the list of used objects */
965	if (prev)
966	{
967	prev->next = next;	779	if (prev) prev->next = next;
		780	if (next) next->prev = prev;
		781
968	prev = 0;	782	prev = 0;
969	}
970
971	if (next)
972	{
973	next->prev = prev;
974	next = 0;	783	next = 0;
975	}
976
977	if (this == objects)
978	objects = next;
979	}	784	}
980		785
981	object *object::create ()	786	object *object::create ()
982	{	787	{
983	object *op;
984
985	if (freed.empty ())
986	op = new object;	788	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 ();	789	op->link ();
996	return op;	790	return op;
997	}	791	}
998		792
999	/*	793	/*
…		…
1001	* it from the list of used objects, and puts it on the list of	795	* 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.	796	* free objects. The IS_FREED() flag is set in the object.
1003	* The object must have been removed by remove_ob() first for	797	* The object must have been removed by remove_ob() first for
1004	* this function to succeed.	798	* this function to succeed.
1005	*	799	*
1006	* If free_inventory is set, free inventory as well. Else drop items in	800	* If destroy_inventory is set, free inventory as well. Else drop items in
1007	* inventory to the ground.	801	* inventory to the ground.
1008	*/	802	*/
1009	void object::free (bool free_inventory)	803	void
		804	object::do_destroy ()
1010	{	805	{
1011	if (!QUERY_FLAG (this, FLAG_REMOVED))	806	attachable::do_destroy ();
1012	{
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		807
1020	if (QUERY_FLAG (this, FLAG_FRIENDLY))	808	if (flag [FLAG_IS_LINKED])
1021	{	809	remove_button_link (this);
1022	LOG (llevMonster, "Warning: tried to free friendly object.\n");	810
		811	if (flag [FLAG_FRIENDLY])
1023	remove_friendly_object (this);	812	remove_friendly_object (this);
1024	}
1025		813
1026	if (QUERY_FLAG (this, FLAG_FREED))	814	if (!flag [FLAG_REMOVED])
1027	{	815	remove ();
1028	dump_object (this);	816
1029	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	817	if (flag [FLAG_FREED])
1030	return;	818	return;
1031	}
1032		819
1033	if (more)	820	flag [FLAG_FREED] = 1;
		821
		822	// hack to ensure that freed objects still have a valid map
1034	{	823	{
1035	more->free (free_inventory);	824	static maptile *freed_map; // freed objects are moved here to avoid crashes
1036	more = 0;
1037	}
1038		825
1039	if (inv)	826	if (!freed_map)
1040	{
1041	/* Only if the space blocks everything do we not process -
1042	* if some form of movement is allowed, let objects
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	{	827	{
1047	object *	828	freed_map = new maptile;
1048	op = inv;
1049		829
1050	while (op)	830	freed_map->name = "/internal/freed_objects_map";
1051	{	831	freed_map->width = 3;
1052	object *	832	freed_map->height = 3;
1053	tmp = op->below;
1054		833
1055	remove_ob (op);	834	freed_map->allocate ();
1056	op->free (free_inventory);
1057	op = tmp;
1058	}
1059	}	835	}
1060	else
1061	{ /* Put objects in inventory onto this space */
1062	object *
1063	op = inv;
1064		836
1065	while (op)	837	map = freed_map;
1066	{	838	x = 1;
1067	object *	839	y = 1;
1068	tmp = op->below;
1069
1070	remove_ob (op);
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	}	840	}
1086		841
1087	clear_owner (this);	842	more = 0;
		843	head = 0;
		844	inv = 0;
		845
		846	// clear those pointers that likely might have circular references to us
		847	owner = 0;
		848	enemy = 0;
		849	attacked_by = 0;
		850
		851	// only relevant for players(?), but make sure of it anyways
		852	contr = 0;
1088		853
1089	/* Remove object from the active list */	854	/* Remove object from the active list */
1090	speed = 0;	855	speed = 0;
1091	update_ob_speed (this);	856	update_ob_speed (this);
1092		857
1093	unlink ();	858	unlink ();
		859	}
1094		860
1095	SET_FLAG (this, FLAG_FREED);	861	/*
		862	* Remove and free all objects in the inventory of the given object.
		863	* object.c ?
		864	*/
		865	void
		866	object::destroy_inv (bool drop_to_ground)
		867	{
		868	if (!inv)
		869	return;
1096		870
1097	mortals.push_back (this);	871	/* Only if the space blocks everything do we not process -
		872	* if some form of movement is allowed, let objects
		873	* drop on that space.
		874	*/
		875	if (!drop_to_ground || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
		876	{
		877	while (inv)
		878	{
		879	inv->destroy_inv (drop_to_ground);
		880	inv->destroy ();
		881	}
		882	}
		883	else
		884	{ /* Put objects in inventory onto this space */
		885	while (inv)
		886	{
		887	object *op = inv;
		888
		889	if (op->flag [FLAG_STARTEQUIP]
		890	|| op->flag [FLAG_NO_DROP]
		891	|| op->type == RUNE
		892	|| op->type == TRAP
		893	|| op->flag [FLAG_IS_A_TEMPLATE])
		894	op->destroy ();
		895	else
		896	{
		897	op->remove ();
		898	op->x = x;
		899	op->y = y;
		900	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		901	}
		902	}
		903	}
		904	}
		905
		906	void
		907	object::destroy (bool destroy_inventory)
		908	{
		909	if (destroyed ())
		910	return;
		911
		912	if (more)
		913	{
		914	//TODO: non-head objects must not have inventory
		915	more->destroy (destroy_inventory);
		916	more = 0;
		917	}
		918
		919	if (destroy_inventory)
		920	destroy_inv (true);
		921
		922	attachable::destroy ();
1098	}	923	}
1099		924
1100	/*	925	/*
1101	* sub_weight() recursively (outwards) subtracts a number from the	926	* sub_weight() recursively (outwards) subtracts a number from the
1102	* weight of an object (and what is carried by it's environment(s)).	927	* weight of an object (and what is carried by it's environment(s)).
1103	*/	928	*/
1104
1105	void	929	void
1106	sub_weight (object *op, signed long weight)	930	sub_weight (object *op, signed long weight)
1107	{	931	{
1108	while (op != NULL)	932	while (op != NULL)
1109	{	933	{
1110	if (op->type == CONTAINER)	934	if (op->type == CONTAINER)
1111	{
1112	weight = (signed long) (weight * (100 - op->stats.Str) / 100);	935	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1113	}	936
1114	op->carrying -= weight;	937	op->carrying -= weight;
1115	op = op->env;	938	op = op->env;
1116	}	939	}
1117	}	940	}
1118		941
1119	/* remove_ob(op):	942	/* op->remove ():
1120	* This function removes the object op from the linked list of objects	943	* 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	944	* which it is currently tied to. When this function is done, the
1122	* object will have no environment. If the object previously had an	945	* object will have no environment. If the object previously had an
1123	* environment, the x and y coordinates will be updated to	946	* environment, the x and y coordinates will be updated to
1124	* the previous environment.	947	* the previous environment.
1125	* Beware: This function is called from the editor as well!	948	* Beware: This function is called from the editor as well!
1126	*/	949	*/
1127
1128	void	950	void
1129	remove_ob (object *op)	951	object::remove ()
1130	{	952	{
1131	object *tmp, *last = NULL;	953	object *tmp, *last = 0;
1132	object *otmp;	954	object *otmp;
1133		955
1134	tag_t tag;
1135	int check_walk_off;
1136	mapstruct *m;
1137
1138	sint16 x, y;
1139
1140	if (QUERY_FLAG (op, FLAG_REMOVED))	956	if (QUERY_FLAG (this, FLAG_REMOVED))
1141	{	957	return;
1142	dump_object (op);
1143	LOG (llevError, "Trying to remove removed object.\n%s\n", errmsg);
1144		958
1145	/* Changed it to always dump core in this case. As has been learned
1146	* in the past, trying to recover from errors almost always
1147	* make things worse, and this is a real error here - something
1148	* that should not happen.
1149	* Yes, if this was a mission critical app, trying to do something
1150	* to recover may make sense, but that is because failure of the app
1151	* may have other disastrous problems. Cf runs out of a script
1152	* so is easily enough restarted without any real problems.
1153	* MSW 2001-07-01
1154	*/
1155	abort ();
1156	}
1157
1158	if (op->more != NULL)
1159	remove_ob (op->more);
1160
1161	SET_FLAG (op, FLAG_REMOVED);	959	SET_FLAG (this, FLAG_REMOVED);
		960	INVOKE_OBJECT (REMOVE, this);
		961
		962	if (more)
		963	more->remove ();
1162		964
1163	/*	965	/*
1164	* In this case, the object to be removed is in someones	966	* In this case, the object to be removed is in someones
1165	* inventory.	967	* inventory.
1166	*/	968	*/
1167	if (op->env != NULL)	969	if (env)
1168	{	970	{
1169	if (op->nrof)	971	if (nrof)
1170	sub_weight (op->env, op->weight * op->nrof);	972	sub_weight (env, weight * nrof);
1171	else	973	else
1172	sub_weight (op->env, op->weight + op->carrying);	974	sub_weight (env, weight + carrying);
1173		975
1174	/* NO_FIX_PLAYER is set when a great many changes are being	976	/* NO_FIX_PLAYER is set when a great many changes are being
1175	* made to players inventory. If set, avoiding the call	977	* made to players inventory. If set, avoiding the call
1176	* to save cpu time.	978	* to save cpu time.
1177	*/	979	*/
1178	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	980	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1179	fix_player (otmp);	981	otmp->update_stats ();
1180		982
1181	if (op->above != NULL)	983	if (above != NULL)
1182	op->above->below = op->below;	984	above->below = below;
1183	else	985	else
1184	op->env->inv = op->below;	986	env->inv = below;
1185		987
1186	if (op->below != NULL)	988	if (below != NULL)
1187	op->below->above = op->above;	989	below->above = above;
1188		990
1189	/* we set up values so that it could be inserted into	991	/* we set up values so that it could be inserted into
1190	* the map, but we don't actually do that - it is up	992	* the map, but we don't actually do that - it is up
1191	* to the caller to decide what we want to do.	993	* to the caller to decide what we want to do.
1192	*/	994	*/
1193	op->x = op->env->x, op->y = op->env->y;	995	x = env->x, y = env->y;
1194	op->map = op->env->map;	996	map = env->map;
1195	op->above = NULL, op->below = NULL;	997	above = 0, below = 0;
1196	op->env = NULL;	998	env = 0;
1197	return;
1198	}
1199
1200	/* If we get here, we are removing it from a map */
1201	if (op->map == NULL)
1202	return;
1203
1204	x = op->x;
1205	y = op->y;
1206	m = get_map_from_coord (op->map, &x, &y);
1207
1208	if (!m)
1209	{	999	}
1210	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",	1000	else if (map)
1211	op->map->path, op->x, op->y);	1001	{
1212	/* in old days, we used to set x and y to 0 and continue.	1002	/* Re did the following section of code - it looks like it had
1213	* it seems if we get into this case, something is probablye	1003	* lots of logic for things we no longer care about
1214	* screwed up and should be fixed.
1215	*/	1004	*/
1216	abort ();
1217	}
1218	if (op->map != m)
1219	{
1220	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1221	op->map->path, m->path, op->x, op->y, x, y);
1222	}
1223		1005
1224	/* Re did the following section of code - it looks like it had
1225	* lots of logic for things we no longer care about
1226	*/
1227
1228	/* link the object above us */	1006	/* link the object above us */
1229	if (op->above)	1007	if (above)
1230	op->above->below = op->below;	1008	above->below = below;
1231	else	1009	else
1232	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */	1010	map->at (x, y).top = below; /* we were top, set new top */
1233		1011
1234	/* Relink the object below us, if there is one */	1012	/* Relink the object below us, if there is one */
1235	if (op->below)	1013	if (below)
1236	op->below->above = op->above;	1014	below->above = above;
1237	else	1015	else
1238	{
1239	/* Nothing below, which means we need to relink map object for this space
1240	* use translated coordinates in case some oddness with map tiling is
1241	* evident
1242	*/
1243	if (GET_MAP_OB (m, x, y) != op)
1244	{	1016	{
1245	dump_object (op);	1017	/* Nothing below, which means we need to relink map object for this space
		1018	* use translated coordinates in case some oddness with map tiling is
		1019	* evident
		1020	*/
		1021	if (GET_MAP_OB (map, x, y) != this)
		1022	{
		1023	char *dump = dump_object (this);
		1024	LOG (llevError,
1246	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",	1025	"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);
1247	errmsg);	1026	free (dump);
1248	dump_object (GET_MAP_OB (m, x, y));	1027	dump = dump_object (GET_MAP_OB (map, x, y));
1249	LOG (llevError, "%s\n", errmsg);	1028	LOG (llevError, "%s\n", dump);
		1029	free (dump);
		1030	}
		1031
		1032	map->at (x, y).bot = above; /* goes on above it. */
1250	}	1033	}
1251		1034
1252	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */	1035	above = 0;
1253	}	1036	below = 0;
1254		1037
1255	op->above = NULL;
1256	op->below = NULL;
1257
1258	if (op->map->in_memory == MAP_SAVING)	1038	if (map->in_memory == MAP_SAVING)
1259	return;	1039	return;
1260		1040
1261	tag = op->count;	1041	int check_walk_off = !flag [FLAG_NO_APPLY];
1262	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1263		1042
1264	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1043	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
1265	{
1266	/* No point updating the players look faces if he is the object
1267	* being removed.
1268	*/
1269
1270	if (tmp->type == PLAYER && tmp != op)
1271	{	1044	{
1272	/* If a container that the player is currently using somehow gets	1045	/* No point updating the players look faces if he is the object
1273	* removed (most likely destroyed), update the player view	1046	* being removed.
1274	* appropriately.
1275	*/	1047	*/
1276	if (tmp->container == op)	1048
		1049	if (tmp->type == PLAYER && tmp != this)
1277	{	1050	{
1278	CLEAR_FLAG (op, FLAG_APPLIED);	1051	/* If a container that the player is currently using somehow gets
		1052	* removed (most likely destroyed), update the player view
		1053	* appropriately.
		1054	*/
		1055	if (tmp->container == this)
		1056	{
		1057	flag [FLAG_APPLIED] = 0;
1279	tmp->container = NULL;	1058	tmp->container = 0;
		1059	}
		1060
		1061	if (tmp->contr->ns)
		1062	tmp->contr->ns->floorbox_update ();
1280	}	1063	}
1281		1064
1282	tmp->contr->socket.update_look = 1;	1065	/* See if player moving off should effect something */
		1066	if (check_walk_off
		1067	&& ((move_type & tmp->move_off)
		1068	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1069	{
		1070	move_apply (tmp, this, 0);
		1071
		1072	if (destroyed ())
		1073	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1074	}
		1075
		1076	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1077
		1078	if (tmp->above == tmp)
		1079	tmp->above = 0;
		1080
		1081	last = tmp;
1283	}	1082	}
1284	/* See if player moving off should effect something */
1285	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1286	{
1287	move_apply (tmp, op, NULL);
1288		1083
1289	if (was_destroyed (op, tag))
1290	{
1291	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1292	}
1293	}
1294
1295	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1296
1297	if (tmp->above == tmp)
1298	tmp->above = NULL;
1299
1300	last = tmp;
1301	}
1302
1303	/* last == NULL of there are no objects on this space */	1084	/* last == NULL of there are no objects on this space */
1304	if (last == NULL)	1085	if (!last)
1305	{	1086	map->at (x, y).flags_ = P_NEED_UPDATE;
1306	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1307	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1308	* those out anyways, and if there are any flags set right now, they won't
1309	* be correct anyways.
1310	*/
1311	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1312	update_position (op->map, op->x, op->y);
1313	}
1314	else	1087	else
1315	update_object (last, UP_OBJ_REMOVE);	1088	update_object (last, UP_OBJ_REMOVE);
1316		1089
1317	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1090	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1318	update_all_los (op->map, op->x, op->y);	1091	update_all_los (map, x, y);
		1092	}
1319	}	1093	}
1320		1094
1321	/*	1095	/*
1322	* merge_ob(op,top):	1096	* merge_ob(op,top):
1323	*	1097	*
1324	* This function goes through all objects below and including top, and	1098	* This function goes through all objects below and including top, and
1325	* merges op to the first matching object.	1099	* merges op to the first matching object.
1326	* If top is NULL, it is calculated.	1100	* If top is NULL, it is calculated.
1327	* Returns pointer to object if it succeded in the merge, otherwise NULL	1101	* Returns pointer to object if it succeded in the merge, otherwise NULL
1328	*/	1102	*/
1329
1330	object *	1103	object *
1331	merge_ob (object *op, object *top)	1104	merge_ob (object *op, object *top)
1332	{	1105	{
1333	if (!op->nrof)	1106	if (!op->nrof)
1334	return 0;	1107	return 0;
1335	if (top == NULL)	1108
		1109	if (top)
1336	for (top = op; top != NULL && top->above != NULL; top = top->above);	1110	for (top = op; top && top->above; top = top->above)
		1111	;
		1112
1337	for (; top != NULL; top = top->below)	1113	for (; top; top = top->below)
1338	{	1114	{
1339	if (top == op)	1115	if (top == op)
1340	continue;	1116	continue;
1341	if (CAN_MERGE (op, top))	1117
		1118	if (object::can_merge (op, top))
1342	{	1119	{
1343	top->nrof += op->nrof;	1120	top->nrof += op->nrof;
1344		1121
1345	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1122	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1346	op->weight = 0; /* Don't want any adjustements now */	1123	op->weight = 0; /* Don't want any adjustements now */
1347	remove_ob (op);	1124	op->destroy ();
1348	free_object (op);
1349	return top;	1125	return top;
1350	}	1126	}
1351	}	1127	}
		1128
1352	return NULL;	1129	return 0;
1353	}	1130	}
1354		1131
1355	/*	1132	/*
1356	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1133	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1357	* job preparing multi-part monsters	1134	* job preparing multi-part monsters
1358	*/	1135	*/
1359	object *	1136	object *
1360	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1137	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1361	{	1138	{
1362	object *	1139	object *tmp;
1363	tmp;
1364		1140
1365	if (op->head)	1141	if (op->head)
1366	op = op->head;	1142	op = op->head;
		1143
1367	for (tmp = op; tmp; tmp = tmp->more)	1144	for (tmp = op; tmp; tmp = tmp->more)
1368	{	1145	{
1369	tmp->x = x + tmp->arch->clone.x;	1146	tmp->x = x + tmp->arch->clone.x;
1370	tmp->y = y + tmp->arch->clone.y;	1147	tmp->y = y + tmp->arch->clone.y;
1371	}	1148	}
		1149
1372	return insert_ob_in_map (op, m, originator, flag);	1150	return insert_ob_in_map (op, m, originator, flag);
1373	}	1151	}
1374		1152
1375	/*	1153	/*
1376	* insert_ob_in_map (op, map, originator, flag):	1154	* insert_ob_in_map (op, map, originator, flag):
…		…
1390	* Return value:	1168	* Return value:
1391	* new object if 'op' was merged with other object	1169	* new object if 'op' was merged with other object
1392	* NULL if 'op' was destroyed	1170	* NULL if 'op' was destroyed
1393	* just 'op' otherwise	1171	* just 'op' otherwise
1394	*/	1172	*/
1395
1396	object *	1173	object *
1397	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1174	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1398	{	1175	{
1399	object *tmp, *top, *floor = NULL;	1176	object *tmp, *top, *floor = NULL;
1400	sint16 x, y;	1177	sint16 x, y;
1401		1178
1402	if (QUERY_FLAG (op, FLAG_FREED))	1179	if (QUERY_FLAG (op, FLAG_FREED))
…		…
1405	return NULL;	1182	return NULL;
1406	}	1183	}
1407		1184
1408	if (m == NULL)	1185	if (m == NULL)
1409	{	1186	{
1410	dump_object (op);	1187	char *dump = dump_object (op);
1411	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);	1188	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1189	free (dump);
1412	return op;	1190	return op;
1413	}	1191	}
1414		1192
1415	if (out_of_map (m, op->x, op->y))	1193	if (out_of_map (m, op->x, op->y))
1416	{	1194	{
1417	dump_object (op);	1195	char *dump = dump_object (op);
1418	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);	1196	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1419	#ifdef MANY_CORES	1197	#ifdef MANY_CORES
1420	/* Better to catch this here, as otherwise the next use of this object	1198	/* Better to catch this here, as otherwise the next use of this object
1421	* is likely to cause a crash. Better to find out where it is getting	1199	* is likely to cause a crash. Better to find out where it is getting
1422	* improperly inserted.	1200	* improperly inserted.
1423	*/	1201	*/
1424	abort ();	1202	abort ();
1425	#endif	1203	#endif
		1204	free (dump);
1426	return op;	1205	return op;
1427	}	1206	}
1428		1207
1429	if (!QUERY_FLAG (op, FLAG_REMOVED))	1208	if (!QUERY_FLAG (op, FLAG_REMOVED))
1430	{	1209	{
1431	dump_object (op);	1210	char *dump = dump_object (op);
1432	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);	1211	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1212	free (dump);
1433	return op;	1213	return op;
1434	}	1214	}
1435		1215
1436	if (op->more != NULL)	1216	if (op->more)
1437	{	1217	{
1438	/* The part may be on a different map. */	1218	/* The part may be on a different map. */
1439		1219
1440	object *more = op->more;	1220	object *more = op->more;
1441		1221
…		…
1457	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)	1237	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1458	{	1238	{
1459	if (!op->head)	1239	if (!op->head)
1460	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1240	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1461		1241
1462	return NULL;	1242	return 0;
1463	}	1243	}
1464	}	1244	}
1465		1245
1466	CLEAR_FLAG (op, FLAG_REMOVED);	1246	CLEAR_FLAG (op, FLAG_REMOVED);
1467		1247
…		…
1475		1255
1476	/* this has to be done after we translate the coordinates.	1256	/* this has to be done after we translate the coordinates.
1477	*/	1257	*/
1478	if (op->nrof && !(flag & INS_NO_MERGE))	1258	if (op->nrof && !(flag & INS_NO_MERGE))
1479	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1259	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1480	if (CAN_MERGE (op, tmp))	1260	if (object::can_merge (op, tmp))
1481	{	1261	{
1482	op->nrof += tmp->nrof;	1262	op->nrof += tmp->nrof;
1483	remove_ob (tmp);	1263	tmp->destroy ();
1484	free_object (tmp);
1485	}	1264	}
1486		1265
1487	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1266	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1488	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1267	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1489		1268
…		…
1502	op->below = originator->below;	1281	op->below = originator->below;
1503		1282
1504	if (op->below)	1283	if (op->below)
1505	op->below->above = op;	1284	op->below->above = op;
1506	else	1285	else
1507	SET_MAP_OB (op->map, op->x, op->y, op);	1286	op->ms ().bot = op;
1508		1287
1509	/* since *below* originator, no need to update top */	1288	/* since *below* originator, no need to update top */
1510	originator->below = op;	1289	originator->below = op;
1511	}	1290	}
1512	else	1291	else
…		…
1558	* If INS_ON_TOP is used, don't do this processing	1337	* If INS_ON_TOP is used, don't do this processing
1559	* Need to find the object that in fact blocks view, otherwise	1338	* Need to find the object that in fact blocks view, otherwise
1560	* stacking is a bit odd.	1339	* stacking is a bit odd.
1561	*/	1340	*/
1562	if (!(flag & INS_ON_TOP) &&	1341	if (!(flag & INS_ON_TOP) &&
1563	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1342	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1564	{	1343	{
1565	for (last = top; last != floor; last = last->below)	1344	for (last = top; last != floor; last = last->below)
1566	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1345	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1567	break;	1346	break;
1568	/* Check to see if we found the object that blocks view,	1347	/* Check to see if we found the object that blocks view,
…		…
1591		1370
1592	if (op->above)	1371	if (op->above)
1593	op->above->below = op;	1372	op->above->below = op;
1594		1373
1595	op->below = NULL;	1374	op->below = NULL;
1596	SET_MAP_OB (op->map, op->x, op->y, op);	1375	op->ms ().bot = op;
1597	}	1376	}
1598	else	1377	else
1599	{ /* get inserted into the stack above top */	1378	{ /* get inserted into the stack above top */
1600	op->above = top->above;	1379	op->above = top->above;
1601		1380
…		…
1605	op->below = top;	1384	op->below = top;
1606	top->above = op;	1385	top->above = op;
1607	}	1386	}
1608		1387
1609	if (op->above == NULL)	1388	if (op->above == NULL)
1610	SET_MAP_TOP (op->map, op->x, op->y, op);	1389	op->ms ().top = op;
1611	} /* else not INS_BELOW_ORIGINATOR */	1390	} /* else not INS_BELOW_ORIGINATOR */
1612		1391
1613	if (op->type == PLAYER)	1392	if (op->type == PLAYER)
1614	op->contr->do_los = 1;	1393	op->contr->do_los = 1;
1615		1394
1616	/* If we have a floor, we know the player, if any, will be above	1395	/* If we have a floor, we know the player, if any, will be above
1617	* it, so save a few ticks and start from there.	1396	* it, so save a few ticks and start from there.
1618	*/	1397	*/
1619	if (!(flag & INS_MAP_LOAD))	1398	if (!(flag & INS_MAP_LOAD))
1620	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1399	if (object *pl = op->ms ().player ())
1621	if (tmp->type == PLAYER)	1400	if (pl->contr->ns)
1622	tmp->contr->socket.update_look = 1;	1401	pl->contr->ns->floorbox_update ();
1623		1402
1624	/* If this object glows, it may affect lighting conditions that are	1403	/* If this object glows, it may affect lighting conditions that are
1625	* visible to others on this map. But update_all_los is really	1404	* visible to others on this map. But update_all_los is really
1626	* an inefficient way to do this, as it means los for all players	1405	* an inefficient way to do this, as it means los for all players
1627	* on the map will get recalculated. The players could very well	1406	* on the map will get recalculated. The players could very well
1628	* be far away from this change and not affected in any way -	1407	* be far away from this change and not affected in any way -
1629	* this should get redone to only look for players within range,	1408	* this should get redone to only look for players within range,
1630	* or just updating the P_NEED_UPDATE for spaces within this area	1409	* or just updating the P_NEED_UPDATE for spaces within this area
1631	* of effect may be sufficient.	1410	* of effect may be sufficient.
1632	*/	1411	*/
1633	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1412	if (op->map->darkness && (op->glow_radius != 0))
1634	update_all_los (op->map, op->x, op->y);	1413	update_all_los (op->map, op->x, op->y);
1635		1414
1636	/* updates flags (blocked, alive, no magic, etc) for this map space */	1415	/* updates flags (blocked, alive, no magic, etc) for this map space */
1637	update_object (op, UP_OBJ_INSERT);	1416	update_object (op, UP_OBJ_INSERT);
1638		1417
		1418	INVOKE_OBJECT (INSERT, op);
		1419
1639	/* Don't know if moving this to the end will break anything. However,	1420	/* Don't know if moving this to the end will break anything. However,
1640	* we want to have update_look set above before calling this.	1421	* we want to have floorbox_update called before calling this.
1641	*	1422	*
1642	* check_move_on() must be after this because code called from	1423	* check_move_on() must be after this because code called from
1643	* check_move_on() depends on correct map flags (so functions like	1424	* check_move_on() depends on correct map flags (so functions like
1644	* blocked() and wall() work properly), and these flags are updated by	1425	* blocked() and wall() work properly), and these flags are updated by
1645	* update_object().	1426	* update_object().
…		…
1647		1428
1648	/* if this is not the head or flag has been passed, don't check walk on status */	1429	/* if this is not the head or flag has been passed, don't check walk on status */
1649	if (!(flag & INS_NO_WALK_ON) && !op->head)	1430	if (!(flag & INS_NO_WALK_ON) && !op->head)
1650	{	1431	{
1651	if (check_move_on (op, originator))	1432	if (check_move_on (op, originator))
1652	return NULL;	1433	return 0;
1653		1434
1654	/* If we are a multi part object, lets work our way through the check	1435	/* If we are a multi part object, lets work our way through the check
1655	* walk on's.	1436	* walk on's.
1656	*/	1437	*/
1657	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1438	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1658	if (check_move_on (tmp, originator))	1439	if (check_move_on (tmp, originator))
1659	return NULL;	1440	return 0;
1660	}	1441	}
1661		1442
1662	return op;	1443	return op;
1663	}	1444	}
1664		1445
1665	/* this function inserts an object in the map, but if it	1446	/* this function inserts an object in the map, but if it
1666	* finds an object of its own type, it'll remove that one first.	1447	* finds an object of its own type, it'll remove that one first.
1667	* op is the object to insert it under: supplies x and the map.	1448	* op is the object to insert it under: supplies x and the map.
1668	*/	1449	*/
1669	void	1450	void
1670	replace_insert_ob_in_map (const char *arch_string, object *op)	1451	replace_insert_ob_in_map (const char *arch_string, object *op)
1671	{	1452	{
1672	object *tmp;
1673	object *tmp1;	1453	object *tmp, *tmp1;
1674		1454
1675	/* first search for itself and remove any old instances */	1455	/* first search for itself and remove any old instances */
1676		1456
1677	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1457	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1678	{
1679	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1458	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1680	{	1459	tmp->destroy ();
1681	remove_ob (tmp);
1682	free_object (tmp);
1683	}
1684	}
1685		1460
1686	tmp1 = arch_to_object (find_archetype (arch_string));	1461	tmp1 = arch_to_object (archetype::find (arch_string));
1687		1462
1688	tmp1->x = op->x;	1463	tmp1->x = op->x;
1689	tmp1->y = op->y;	1464	tmp1->y = op->y;
1690	insert_ob_in_map (tmp1, op->map, op, 0);	1465	insert_ob_in_map (tmp1, op->map, op, 0);
1691	}	1466	}
…		…
1699	*/	1474	*/
1700		1475
1701	object *	1476	object *
1702	get_split_ob (object *orig_ob, uint32 nr)	1477	get_split_ob (object *orig_ob, uint32 nr)
1703	{	1478	{
1704	object *	1479	object *newob;
1705	newob;
1706	int
1707	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1480	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1708		1481
1709	if (orig_ob->nrof < nr)	1482	if (orig_ob->nrof < nr)
1710	{	1483	{
1711	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);	1484	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1712	return NULL;	1485	return NULL;
1713	}	1486	}
		1487
1714	newob = object_create_clone (orig_ob);	1488	newob = object_create_clone (orig_ob);
		1489
1715	if ((orig_ob->nrof -= nr) < 1)	1490	if ((orig_ob->nrof -= nr) < 1)
1716	{	1491	orig_ob->destroy (1);
1717	if (!is_removed)
1718	remove_ob (orig_ob);
1719	free_object2 (orig_ob, 1);
1720	}
1721	else if (!is_removed)	1492	else if (!is_removed)
1722	{	1493	{
1723	if (orig_ob->env != NULL)	1494	if (orig_ob->env != NULL)
1724	sub_weight (orig_ob->env, orig_ob->weight * nr);	1495	sub_weight (orig_ob->env, orig_ob->weight * nr);
1725	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)	1496	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
…		…
1727	strcpy (errmsg, "Tried to split object whose map is not in memory.");	1498	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1728	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");	1499	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1729	return NULL;	1500	return NULL;
1730	}	1501	}
1731	}	1502	}
		1503
1732	newob->nrof = nr;	1504	newob->nrof = nr;
1733		1505
1734	return newob;	1506	return newob;
1735	}	1507	}
1736		1508
…		…
1743	*/	1515	*/
1744		1516
1745	object *	1517	object *
1746	decrease_ob_nr (object *op, uint32 i)	1518	decrease_ob_nr (object *op, uint32 i)
1747	{	1519	{
1748	object *	1520	object *tmp;
1749	tmp;
1750	player *
1751	pl;
1752		1521
1753	if (i == 0) /* objects with op->nrof require this check */	1522	if (i == 0) /* objects with op->nrof require this check */
1754	return op;	1523	return op;
1755		1524
1756	if (i > op->nrof)	1525	if (i > op->nrof)
1757	i = op->nrof;	1526	i = op->nrof;
1758		1527
1759	if (QUERY_FLAG (op, FLAG_REMOVED))	1528	if (QUERY_FLAG (op, FLAG_REMOVED))
1760	{
1761	op->nrof -= i;	1529	op->nrof -= i;
1762	}
1763	else if (op->env != NULL)	1530	else if (op->env)
1764	{	1531	{
1765	/* is this object in the players inventory, or sub container	1532	/* is this object in the players inventory, or sub container
1766	* therein?	1533	* therein?
1767	*/	1534	*/
1768	tmp = is_player_inv (op->env);	1535	tmp = op->in_player ();
1769	/* nope. Is this a container the player has opened?	1536	/* nope. Is this a container the player has opened?
1770	* If so, set tmp to that player.	1537	* If so, set tmp to that player.
1771	* IMO, searching through all the players will mostly	1538	* IMO, searching through all the players will mostly
1772	* likely be quicker than following op->env to the map,	1539	* likely be quicker than following op->env to the map,
1773	* and then searching the map for a player.	1540	* and then searching the map for a player.
1774	*/	1541	*/
1775	if (!tmp)	1542	if (!tmp)
1776	{	1543	for_all_players (pl)
1777	for (pl = first_player; pl; pl = pl->next)
1778	if (pl->ob->container == op->env)	1544	if (pl->ob->container == op->env)
		1545	{
		1546	tmp = pl->ob;
1779	break;	1547	break;
1780	if (pl)
1781	tmp = pl->ob;
1782	else
1783	tmp = NULL;
1784	}	1548	}
1785		1549
1786	if (i < op->nrof)	1550	if (i < op->nrof)
1787	{	1551	{
1788	sub_weight (op->env, op->weight * i);	1552	sub_weight (op->env, op->weight * i);
1789	op->nrof -= i;	1553	op->nrof -= i;
1790	if (tmp)	1554	if (tmp)
1791	{
1792	esrv_send_item (tmp, op);	1555	esrv_send_item (tmp, op);
1793	}
1794	}	1556	}
1795	else	1557	else
1796	{	1558	{
1797	remove_ob (op);	1559	op->remove ();
1798	op->nrof = 0;	1560	op->nrof = 0;
1799	if (tmp)	1561	if (tmp)
1800	{
1801	esrv_del_item (tmp->contr, op->count);	1562	esrv_del_item (tmp->contr, op->count);
1802	}
1803	}	1563	}
1804	}	1564	}
1805	else	1565	else
1806	{	1566	{
1807	object *
1808	above = op->above;	1567	object *above = op->above;
1809		1568
1810	if (i < op->nrof)	1569	if (i < op->nrof)
1811	{
1812	op->nrof -= i;	1570	op->nrof -= i;
1813	}
1814	else	1571	else
1815	{	1572	{
1816	remove_ob (op);	1573	op->remove ();
1817	op->nrof = 0;	1574	op->nrof = 0;
1818	}	1575	}
		1576
1819	/* Since we just removed op, op->above is null */	1577	/* Since we just removed op, op->above is null */
1820	for (tmp = above; tmp != NULL; tmp = tmp->above)	1578	for (tmp = above; tmp; tmp = tmp->above)
1821	if (tmp->type == PLAYER)	1579	if (tmp->type == PLAYER)
1822	{	1580	{
1823	if (op->nrof)	1581	if (op->nrof)
1824	esrv_send_item (tmp, op);	1582	esrv_send_item (tmp, op);
1825	else	1583	else
1826	esrv_del_item (tmp->contr, op->count);	1584	esrv_del_item (tmp->contr, op->count);
1827	}	1585	}
1828	}	1586	}
1829		1587
1830	if (op->nrof)	1588	if (op->nrof)
1831	{
1832	return op;	1589	return op;
1833	}
1834	else	1590	else
1835	{	1591	{
1836	free_object (op);	1592	op->destroy ();
1837	return NULL;	1593	return 0;
1838	}	1594	}
1839	}	1595	}
1840		1596
1841	/*	1597	/*
1842	* add_weight(object, weight) adds the specified weight to an object,	1598	* add_weight(object, weight) adds the specified weight to an object,
…		…
1847	add_weight (object *op, signed long weight)	1603	add_weight (object *op, signed long weight)
1848	{	1604	{
1849	while (op != NULL)	1605	while (op != NULL)
1850	{	1606	{
1851	if (op->type == CONTAINER)	1607	if (op->type == CONTAINER)
1852	{
1853	weight = (signed long) (weight * (100 - op->stats.Str) / 100);	1608	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1854	}	1609
1855	op->carrying += weight;	1610	op->carrying += weight;
1856	op = op->env;	1611	op = op->env;
1857	}	1612	}
1858	}	1613	}
1859		1614
		1615	object *
		1616	insert_ob_in_ob (object *op, object *where)
		1617	{
		1618	if (!where)
		1619	{
		1620	char *dump = dump_object (op);
		1621	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1622	free (dump);
		1623	return op;
		1624	}
		1625
		1626	if (where->head)
		1627	{
		1628	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1629	where = where->head;
		1630	}
		1631
		1632	return where->insert (op);
		1633	}
		1634
1860	/*	1635	/*
1861	* insert_ob_in_ob(op,environment):	1636	* env->insert (op)
1862	* This function inserts the object op in the linked list	1637	* This function inserts the object op in the linked list
1863	* inside the object environment.	1638	* inside the object environment.
1864	*	1639	*
1865	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1866	* the inventory at the last position or next to other objects of the same
1867	* type.
1868	* Frank: Now sorted by type, archetype and magic!
1869	*
1870	* The function returns now pointer to inserted item, and return value can	1640	* The function returns now pointer to inserted item, and return value can
1871	* be != op, if items are merged. -Tero	1641	* be != op, if items are merged. -Tero
1872	*/	1642	*/
1873		1643
1874	object *	1644	object *
1875	insert_ob_in_ob (object *op, object *where)	1645	object::insert (object *op)
1876	{	1646	{
1877	object *	1647	object *tmp, *otmp;
1878	tmp, *
1879	otmp;
1880		1648
1881	if (!QUERY_FLAG (op, FLAG_REMOVED))	1649	if (!QUERY_FLAG (op, FLAG_REMOVED))
1882	{	1650	op->remove ();
1883	dump_object (op);	1651
1884	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1885	return op;
1886	}
1887	if (where == NULL)
1888	{
1889	dump_object (op);
1890	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1891	return op;
1892	}
1893	if (where->head)
1894	{
1895	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1896	where = where->head;
1897	}
1898	if (op->more)	1652	if (op->more)
1899	{	1653	{
1900	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1654	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1901	return op;	1655	return op;
1902	}	1656	}
		1657
1903	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1658	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1904	CLEAR_FLAG (op, FLAG_REMOVED);	1659	CLEAR_FLAG (op, FLAG_REMOVED);
1905	if (op->nrof)	1660	if (op->nrof)
1906	{	1661	{
1907	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1662	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1908	if (CAN_MERGE (tmp, op))	1663	if (object::can_merge (tmp, op))
1909	{	1664	{
1910	/* return the original object and remove inserted object	1665	/* return the original object and remove inserted object
1911	(client needs the original object) */	1666	(client needs the original object) */
1912	tmp->nrof += op->nrof;	1667	tmp->nrof += op->nrof;
1913	/* Weight handling gets pretty funky. Since we are adding to	1668	/* Weight handling gets pretty funky. Since we are adding to
1914	* tmp->nrof, we need to increase the weight.	1669	* tmp->nrof, we need to increase the weight.
1915	*/	1670	*/
1916	add_weight (where, op->weight * op->nrof);	1671	add_weight (this, op->weight * op->nrof);
1917	SET_FLAG (op, FLAG_REMOVED);	1672	SET_FLAG (op, FLAG_REMOVED);
1918	free_object (op); /* free the inserted object */	1673	op->destroy (); /* free the inserted object */
1919	op = tmp;	1674	op = tmp;
1920	remove_ob (op); /* and fix old object's links */	1675	op->remove (); /* and fix old object's links */
1921	CLEAR_FLAG (op, FLAG_REMOVED);	1676	CLEAR_FLAG (op, FLAG_REMOVED);
1922	break;	1677	break;
1923	}	1678	}
1924		1679
1925	/* I assume combined objects have no inventory	1680	/* I assume combined objects have no inventory
1926	* We add the weight - this object could have just been removed	1681	* We add the weight - this object could have just been removed
1927	* (if it was possible to merge). calling remove_ob will subtract	1682	* (if it was possible to merge). calling remove_ob will subtract
1928	* the weight, so we need to add it in again, since we actually do	1683	* the weight, so we need to add it in again, since we actually do
1929	* the linking below	1684	* the linking below
1930	*/	1685	*/
1931	add_weight (where, op->weight * op->nrof);	1686	add_weight (this, op->weight * op->nrof);
1932	}	1687	}
1933	else	1688	else
1934	add_weight (where, (op->weight + op->carrying));	1689	add_weight (this, (op->weight + op->carrying));
1935		1690
1936	otmp = is_player_inv (where);	1691	otmp = this->in_player ();
1937	if (otmp && otmp->contr != NULL)	1692	if (otmp && otmp->contr)
1938	{
1939	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1693	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1940	fix_player (otmp);	1694	otmp->update_stats ();
1941	}
1942		1695
1943	op->map = NULL;	1696	op->map = 0;
1944	op->env = where;	1697	op->env = this;
1945	op->above = NULL;	1698	op->above = 0;
1946	op->below = NULL;	1699	op->below = 0;
1947	op->x = 0, op->y = 0;	1700	op->x = 0, op->y = 0;
1948		1701
1949	/* reset the light list and los of the players on the map */	1702	/* reset the light list and los of the players on the map */
1950	if ((op->glow_radius != 0) && where->map)	1703	if ((op->glow_radius != 0) && map)
1951	{	1704	{
1952	#ifdef DEBUG_LIGHTS	1705	#ifdef DEBUG_LIGHTS
1953	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);	1706	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1954	#endif /* DEBUG_LIGHTS */	1707	#endif /* DEBUG_LIGHTS */
1955	if (MAP_DARKNESS (where->map))	1708	if (map->darkness)
1956	update_all_los (where->map, where->x, where->y);	1709	update_all_los (map, x, y);
1957	}	1710	}
1958		1711
1959	/* Client has no idea of ordering so lets not bother ordering it here.	1712	/* Client has no idea of ordering so lets not bother ordering it here.
1960	* It sure simplifies this function...	1713	* It sure simplifies this function...
1961	*/	1714	*/
1962	if (where->inv == NULL)	1715	if (!inv)
1963	where->inv = op;	1716	inv = op;
1964	else	1717	else
1965	{	1718	{
1966	op->below = where->inv;	1719	op->below = inv;
1967	op->below->above = op;	1720	op->below->above = op;
1968	where->inv = op;	1721	inv = op;
1969	}	1722	}
		1723
		1724	INVOKE_OBJECT (INSERT, this);
		1725
1970	return op;	1726	return op;
1971	}	1727	}
1972		1728
1973	/*	1729	/*
1974	* Checks if any objects has a move_type that matches objects	1730	* Checks if any objects has a move_type that matches objects
…		…
1993		1749
1994	int	1750	int
1995	check_move_on (object *op, object *originator)	1751	check_move_on (object *op, object *originator)
1996	{	1752	{
1997	object *tmp;	1753	object *tmp;
1998	tag_t tag;
1999	mapstruct *m = op->map;	1754	maptile *m = op->map;
2000	int x = op->x, y = op->y;	1755	int x = op->x, y = op->y;
2001		1756
2002	MoveType move_on, move_slow, move_block;	1757	MoveType move_on, move_slow, move_block;
2003		1758
2004	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1759	if (QUERY_FLAG (op, FLAG_NO_APPLY))
2005	return 0;	1760	return 0;
2006
2007	tag = op->count;
2008		1761
2009	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1762	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
2010	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1763	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
2011	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1764	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
2012		1765
…		…
2028		1781
2029	/* The objects have to be checked from top to bottom.	1782	/* The objects have to be checked from top to bottom.
2030	* Hence, we first go to the top:	1783	* Hence, we first go to the top:
2031	*/	1784	*/
2032		1785
2033	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1786	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
2034	{	1787	{
2035	/* Trim the search when we find the first other spell effect	1788	/* Trim the search when we find the first other spell effect
2036	* this helps performance so that if a space has 50 spell objects,	1789	* this helps performance so that if a space has 50 spell objects,
2037	* we don't need to check all of them.	1790	* we don't need to check all of them.
2038	*/	1791	*/
…		…
2055	{	1808	{
2056	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1809	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2057	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1810	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2058	{	1811	{
2059		1812
		1813	float
2060	float diff = tmp->move_slow_penalty * FABS (op->speed);	1814	diff = tmp->move_slow_penalty * FABS (op->speed);
2061		1815
2062	if (op->type == PLAYER)	1816	if (op->type == PLAYER)
2063	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1817	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2064	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1818	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2065	diff /= 4.0;	1819	diff /= 4.0;
…		…
2072	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1826	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2073	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1827	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2074	{	1828	{
2075	move_apply (tmp, op, originator);	1829	move_apply (tmp, op, originator);
2076		1830
2077	if (was_destroyed (op, tag))	1831	if (op->destroyed ())
2078	return 1;	1832	return 1;
2079		1833
2080	/* what the person/creature stepped onto has moved the object	1834	/* what the person/creature stepped onto has moved the object
2081	* someplace new. Don't process any further - if we did,	1835	* someplace new. Don't process any further - if we did,
2082	* have a feeling strange problems would result.	1836	* have a feeling strange problems would result.
…		…
2092	/*	1846	/*
2093	* present_arch(arch, map, x, y) searches for any objects with	1847	* present_arch(arch, map, x, y) searches for any objects with
2094	* a matching archetype at the given map and coordinates.	1848	* a matching archetype at the given map and coordinates.
2095	* The first matching object is returned, or NULL if none.	1849	* The first matching object is returned, or NULL if none.
2096	*/	1850	*/
2097
2098	object *	1851	object *
2099	present_arch (const archetype *at, mapstruct *m, int x, int y)	1852	present_arch (const archetype *at, maptile *m, int x, int y)
2100	{	1853	{
2101	object *
2102	tmp;
2103
2104	if (m == NULL || out_of_map (m, x, y))	1854	if (m == NULL || out_of_map (m, x, y))
2105	{	1855	{
2106	LOG (llevError, "Present_arch called outside map.\n");	1856	LOG (llevError, "Present_arch called outside map.\n");
2107	return NULL;	1857	return NULL;
2108	}	1858	}
		1859
2109	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1860	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2110	if (tmp->arch == at)	1861	if (tmp->arch == at)
2111	return tmp;	1862	return tmp;
		1863
2112	return NULL;	1864	return NULL;
2113	}	1865	}
2114		1866
2115	/*	1867	/*
2116	* present(type, map, x, y) searches for any objects with	1868	* present(type, map, x, y) searches for any objects with
2117	* a matching type variable at the given map and coordinates.	1869	* a matching type variable at the given map and coordinates.
2118	* The first matching object is returned, or NULL if none.	1870	* The first matching object is returned, or NULL if none.
2119	*/	1871	*/
2120
2121	object *	1872	object *
2122	present (unsigned char type, mapstruct *m, int x, int y)	1873	present (unsigned char type, maptile *m, int x, int y)
2123	{	1874	{
2124	object *
2125	tmp;
2126
2127	if (out_of_map (m, x, y))	1875	if (out_of_map (m, x, y))
2128	{	1876	{
2129	LOG (llevError, "Present called outside map.\n");	1877	LOG (llevError, "Present called outside map.\n");
2130	return NULL;	1878	return NULL;
2131	}	1879	}
		1880
2132	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1881	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2133	if (tmp->type == type)	1882	if (tmp->type == type)
2134	return tmp;	1883	return tmp;
		1884
2135	return NULL;	1885	return NULL;
2136	}	1886	}
2137		1887
2138	/*	1888	/*
2139	* present_in_ob(type, object) searches for any objects with	1889	* present_in_ob(type, object) searches for any objects with
2140	* a matching type variable in the inventory of the given object.	1890	* a matching type variable in the inventory of the given object.
2141	* The first matching object is returned, or NULL if none.	1891	* The first matching object is returned, or NULL if none.
2142	*/	1892	*/
2143
2144	object *	1893	object *
2145	present_in_ob (unsigned char type, const object *op)	1894	present_in_ob (unsigned char type, const object *op)
2146	{	1895	{
2147	object *
2148	tmp;
2149
2150	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1896	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2151	if (tmp->type == type)	1897	if (tmp->type == type)
2152	return tmp;	1898	return tmp;
		1899
2153	return NULL;	1900	return NULL;
2154	}	1901	}
2155		1902
2156	/*	1903	/*
2157	* present_in_ob (type, str, object) searches for any objects with	1904	* present_in_ob (type, str, object) searches for any objects with
…		…
2165	* str is the string to match against. Note that we match against	1912	* str is the string to match against. Note that we match against
2166	* the object name, not the archetype name. this is so that the	1913	* the object name, not the archetype name. this is so that the
2167	* spell code can use one object type (force), but change it's name	1914	* spell code can use one object type (force), but change it's name
2168	* to be unique.	1915	* to be unique.
2169	*/	1916	*/
2170
2171	object *	1917	object *
2172	present_in_ob_by_name (int type, const char *str, const object *op)	1918	present_in_ob_by_name (int type, const char *str, const object *op)
2173	{	1919	{
2174	object *
2175	tmp;
2176
2177	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1920	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2178	{
2179	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1921	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2180	return tmp;	1922	return tmp;
2181	}	1923
2182	return NULL;	1924	return 0;
2183	}	1925	}
2184		1926
2185	/*	1927	/*
2186	* present_arch_in_ob(archetype, object) searches for any objects with	1928	* present_arch_in_ob(archetype, object) searches for any objects with
2187	* a matching archetype in the inventory of the given object.	1929	* a matching archetype in the inventory of the given object.
2188	* The first matching object is returned, or NULL if none.	1930	* The first matching object is returned, or NULL if none.
2189	*/	1931	*/
2190
2191	object *	1932	object *
2192	present_arch_in_ob (const archetype *at, const object *op)	1933	present_arch_in_ob (const archetype *at, const object *op)
2193	{	1934	{
2194	object *
2195	tmp;
2196
2197	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1935	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2198	if (tmp->arch == at)	1936	if (tmp->arch == at)
2199	return tmp;	1937	return tmp;
		1938
2200	return NULL;	1939	return NULL;
2201	}	1940	}
2202		1941
2203	/*	1942	/*
2204	* activate recursively a flag on an object inventory	1943	* activate recursively a flag on an object inventory
2205	*/	1944	*/
2206	void	1945	void
2207	flag_inv (object *op, int flag)	1946	flag_inv (object *op, int flag)
2208	{	1947	{
2209	object *
2210	tmp;
2211
2212	if (op->inv)	1948	if (op->inv)
2213	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1949	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2214	{	1950	{
2215	SET_FLAG (tmp, flag);	1951	SET_FLAG (tmp, flag);
2216	flag_inv (tmp, flag);	1952	flag_inv (tmp, flag);
2217	}	1953	}
2218	} /*	1954	}
		1955
		1956	/*
2219	* desactivate recursively a flag on an object inventory	1957	* deactivate recursively a flag on an object inventory
2220	*/	1958	*/
2221	void	1959	void
2222	unflag_inv (object *op, int flag)	1960	unflag_inv (object *op, int flag)
2223	{	1961	{
2224	object *
2225	tmp;
2226
2227	if (op->inv)	1962	if (op->inv)
2228	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1963	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2229	{	1964	{
2230	CLEAR_FLAG (tmp, flag);	1965	CLEAR_FLAG (tmp, flag);
2231	unflag_inv (tmp, flag);	1966	unflag_inv (tmp, flag);
2232	}	1967	}
2233	}	1968	}
…		…
2236	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1971	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2237	* all it's inventory (recursively).	1972	* all it's inventory (recursively).
2238	* If checksums are used, a player will get set_cheat called for	1973	* If checksums are used, a player will get set_cheat called for
2239	* him/her-self and all object carried by a call to this function.	1974	* him/her-self and all object carried by a call to this function.
2240	*/	1975	*/
2241
2242	void	1976	void
2243	set_cheat (object *op)	1977	set_cheat (object *op)
2244	{	1978	{
2245	SET_FLAG (op, FLAG_WAS_WIZ);	1979	SET_FLAG (op, FLAG_WAS_WIZ);
2246	flag_inv (op, FLAG_WAS_WIZ);	1980	flag_inv (op, FLAG_WAS_WIZ);
…		…
2265	* because arch_blocked (now ob_blocked) needs to know the movement type	1999	* because arch_blocked (now ob_blocked) needs to know the movement type
2266	* to know if the space in question will block the object. We can't use	2000	* to know if the space in question will block the object. We can't use
2267	* the archetype because that isn't correct if the monster has been	2001	* the archetype because that isn't correct if the monster has been
2268	* customized, changed states, etc.	2002	* customized, changed states, etc.
2269	*/	2003	*/
2270
2271	int	2004	int
2272	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	2005	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2273	{	2006	{
2274	int
2275	i,
2276	index = 0, flag;	2007	int index = 0, flag;
2277	static int
2278	altern[SIZEOFFREE];	2008	int altern[SIZEOFFREE];
2279		2009
2280	for (i = start; i < stop; i++)	2010	for (int i = start; i < stop; i++)
2281	{	2011	{
2282	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2012	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2283	if (!flag)	2013	if (!flag)
2284	altern[index++] = i;	2014	altern [index++] = i;
2285		2015
2286	/* Basically, if we find a wall on a space, we cut down the search size.	2016	/* Basically, if we find a wall on a space, we cut down the search size.
2287	* In this way, we won't return spaces that are on another side of a wall.	2017	* In this way, we won't return spaces that are on another side of a wall.
2288	* This mostly work, but it cuts down the search size in all directions -	2018	* This mostly work, but it cuts down the search size in all directions -
2289	* if the space being examined only has a wall to the north and empty	2019	* if the space being examined only has a wall to the north and empty
2290	* spaces in all the other directions, this will reduce the search space	2020	* spaces in all the other directions, this will reduce the search space
2291	* to only the spaces immediately surrounding the target area, and	2021	* to only the spaces immediately surrounding the target area, and
2292	* won't look 2 spaces south of the target space.	2022	* won't look 2 spaces south of the target space.
2293	*/	2023	*/
2294	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2024	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2295	stop = maxfree[i];	2025	stop = maxfree[i];
2296	}	2026	}
		2027
2297	if (!index)	2028	if (!index)
2298	return -1;	2029	return -1;
		2030
2299	return altern[RANDOM () % index];	2031	return altern[RANDOM () % index];
2300	}	2032	}
2301		2033
2302	/*	2034	/*
2303	* find_first_free_spot(archetype, mapstruct, x, y) works like	2035	* find_first_free_spot(archetype, maptile, x, y) works like
2304	* find_free_spot(), but it will search max number of squares.	2036	* find_free_spot(), but it will search max number of squares.
2305	* But it will return the first available spot, not a random choice.	2037	* But it will return the first available spot, not a random choice.
2306	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2038	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2307	*/	2039	*/
2308
2309	int	2040	int
2310	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2041	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2311	{	2042	{
2312	int
2313	i;
2314
2315	for (i = 0; i < SIZEOFFREE; i++)	2043	for (int i = 0; i < SIZEOFFREE; i++)
2316	{
2317	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2044	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2318	return i;	2045	return i;
2319	}	2046
2320	return -1;	2047	return -1;
2321	}	2048	}
2322		2049
2323	/*	2050	/*
2324	* The function permute(arr, begin, end) randomly reorders the array	2051	* The function permute(arr, begin, end) randomly reorders the array
2325	* arr[begin..end-1].	2052	* arr[begin..end-1].
		2053	* now uses a fisher-yates shuffle, old permute was broken
2326	*/	2054	*/
2327	static void	2055	static void
2328	permute (int *arr, int begin, int end)	2056	permute (int *arr, int begin, int end)
2329	{	2057	{
2330	int	2058	arr += begin;
2331	i,
2332	j,
2333	tmp,
2334	len;
2335
2336	len = end - begin;	2059	end -= begin;
2337	for (i = begin; i < end; i++)
2338	{
2339	j = begin + RANDOM () % len;
2340		2060
2341	tmp = arr[i];	2061	while (--end)
2342	arr[i] = arr[j];	2062	swap (arr [end], arr [RANDOM () % (end + 1)]);
2343	arr[j] = tmp;
2344	}
2345	}	2063	}
2346		2064
2347	/* new function to make monster searching more efficient, and effective!	2065	/* new function to make monster searching more efficient, and effective!
2348	* This basically returns a randomized array (in the passed pointer) of	2066	* This basically returns a randomized array (in the passed pointer) of
2349	* the spaces to find monsters. In this way, it won't always look for	2067	* the spaces to find monsters. In this way, it won't always look for
…		…
2352	* the 3x3 area will be searched, just not in a predictable order.	2070	* the 3x3 area will be searched, just not in a predictable order.
2353	*/	2071	*/
2354	void	2072	void
2355	get_search_arr (int *search_arr)	2073	get_search_arr (int *search_arr)
2356	{	2074	{
2357	int	2075	int i;
2358	i;
2359		2076
2360	for (i = 0; i < SIZEOFFREE; i++)	2077	for (i = 0; i < SIZEOFFREE; i++)
2361	{
2362	search_arr[i] = i;	2078	search_arr[i] = i;
2363	}
2364		2079
2365	permute (search_arr, 1, SIZEOFFREE1 + 1);	2080	permute (search_arr, 1, SIZEOFFREE1 + 1);
2366	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2081	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2367	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2082	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2368	}	2083	}
…		…
2377	* Perhaps incorrectly, but I'm making the assumption that exclude	2092	* Perhaps incorrectly, but I'm making the assumption that exclude
2378	* is actually want is going to try and move there. We need this info	2093	* is actually want is going to try and move there. We need this info
2379	* because we have to know what movement the thing looking to move	2094	* because we have to know what movement the thing looking to move
2380	* there is capable of.	2095	* there is capable of.
2381	*/	2096	*/
2382
2383	int	2097	int
2384	find_dir (mapstruct *m, int x, int y, object *exclude)	2098	find_dir (maptile *m, int x, int y, object *exclude)
2385	{	2099	{
2386	int
2387	i,
2388	max = SIZEOFFREE, mflags;	2100	int i, max = SIZEOFFREE, mflags;
2389	sint16	2101
2390	nx,	2102	sint16 nx, ny;
2391	ny;
2392	object *	2103	object *tmp;
2393	tmp;	2104	maptile *mp;
2394	mapstruct *	2105
2395	mp;	2106	MoveType blocked, move_type;
2396	MoveType
2397	blocked,
2398	move_type;
2399		2107
2400	if (exclude && exclude->head)	2108	if (exclude && exclude->head)
2401	{	2109	{
2402	exclude = exclude->head;	2110	exclude = exclude->head;
2403	move_type = exclude->move_type;	2111	move_type = exclude->move_type;
…		…
2413	mp = m;	2121	mp = m;
2414	nx = x + freearr_x[i];	2122	nx = x + freearr_x[i];
2415	ny = y + freearr_y[i];	2123	ny = y + freearr_y[i];
2416		2124
2417	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2125	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2126
2418	if (mflags & P_OUT_OF_MAP)	2127	if (mflags & P_OUT_OF_MAP)
2419	{
2420	max = maxfree[i];	2128	max = maxfree[i];
2421	}
2422	else	2129	else
2423	{	2130	{
2424	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2131	mapspace &ms = mp->at (nx, ny);
		2132
		2133	blocked = ms.move_block;
2425		2134
2426	if ((move_type & blocked) == move_type)	2135	if ((move_type & blocked) == move_type)
2427	{
2428	max = maxfree[i];	2136	max = maxfree[i];
2429	}
2430	else if (mflags & P_IS_ALIVE)	2137	else if (mflags & P_IS_ALIVE)
2431	{	2138	{
2432	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2139	for (tmp = ms.bot; tmp; tmp = tmp->above)
2433	{	2140	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2434	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2141	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2435	{
2436	break;	2142	break;
2437	}	2143
2438	}
2439	if (tmp)	2144	if (tmp)
2440	{
2441	return freedir[i];	2145	return freedir[i];
2442	}
2443	}	2146	}
2444	}	2147	}
2445	}	2148	}
		2149
2446	return 0;	2150	return 0;
2447	}	2151	}
2448		2152
2449	/*	2153	/*
2450	* distance(object 1, object 2) will return the square of the	2154	* distance(object 1, object 2) will return the square of the
2451	* distance between the two given objects.	2155	* distance between the two given objects.
2452	*/	2156	*/
2453
2454	int	2157	int
2455	distance (const object *ob1, const object *ob2)	2158	distance (const object *ob1, const object *ob2)
2456	{	2159	{
2457	int
2458	i;
2459
2460	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2160	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2461	return i;
2462	}	2161	}
2463		2162
2464	/*	2163	/*
2465	* find_dir_2(delta-x,delta-y) will return a direction in which	2164	* find_dir_2(delta-x,delta-y) will return a direction in which
2466	* an object which has subtracted the x and y coordinates of another	2165	* an object which has subtracted the x and y coordinates of another
2467	* object, needs to travel toward it.	2166	* object, needs to travel toward it.
2468	*/	2167	*/
2469
2470	int	2168	int
2471	find_dir_2 (int x, int y)	2169	find_dir_2 (int x, int y)
2472	{	2170	{
2473	int	2171	int q;
2474	q;
2475		2172
2476	if (y)	2173	if (y)
2477	q = x * 100 / y;	2174	q = x * 100 / y;
2478	else if (x)	2175	else if (x)
2479	q = -300 * x;	2176	q = -300 * x;
…		…
2514	int	2211	int
2515	absdir (int d)	2212	absdir (int d)
2516	{	2213	{
2517	while (d < 1)	2214	while (d < 1)
2518	d += 8;	2215	d += 8;
		2216
2519	while (d > 8)	2217	while (d > 8)
2520	d -= 8;	2218	d -= 8;
		2219
2521	return d;	2220	return d;
2522	}	2221	}
2523		2222
2524	/*	2223	/*
2525	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2224	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
…		…
2527	*/	2226	*/
2528		2227
2529	int	2228	int
2530	dirdiff (int dir1, int dir2)	2229	dirdiff (int dir1, int dir2)
2531	{	2230	{
2532	int	2231	int d;
2533	d;
2534		2232
2535	d = abs (dir1 - dir2);	2233	d = abs (dir1 - dir2);
2536	if (d > 4)	2234	if (d > 4)
2537	d = 8 - d;	2235	d = 8 - d;
		2236
2538	return d;	2237	return d;
2539	}	2238	}
2540		2239
2541	/* peterm:	2240	/* peterm:
2542	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2241	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2545	* This basically means that if direction is 15, then it could either go	2244	* This basically means that if direction is 15, then it could either go
2546	* direction 4, 14, or 16 to get back to where we are.	2245	* direction 4, 14, or 16 to get back to where we are.
2547	* Moved from spell_util.c to object.c with the other related direction	2246	* Moved from spell_util.c to object.c with the other related direction
2548	* functions.	2247	* functions.
2549	*/	2248	*/
2550
2551	int
2552	reduction_dir[SIZEOFFREE][3] = {	2249	int reduction_dir[SIZEOFFREE][3] = {
2553	{0, 0, 0}, /* 0 */	2250	{0, 0, 0}, /* 0 */
2554	{0, 0, 0}, /* 1 */	2251	{0, 0, 0}, /* 1 */
2555	{0, 0, 0}, /* 2 */	2252	{0, 0, 0}, /* 2 */
2556	{0, 0, 0}, /* 3 */	2253	{0, 0, 0}, /* 3 */
2557	{0, 0, 0}, /* 4 */	2254	{0, 0, 0}, /* 4 */
…		…
2605	* find a path to that monster that we found. If not,	2302	* find a path to that monster that we found. If not,
2606	* we don't bother going toward it. Returns 1 if we	2303	* we don't bother going toward it. Returns 1 if we
2607	* can see a direct way to get it	2304	* can see a direct way to get it
2608	* Modified to be map tile aware -.MSW	2305	* Modified to be map tile aware -.MSW
2609	*/	2306	*/
2610
2611
2612	int	2307	int
2613	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2308	can_see_monsterP (maptile *m, int x, int y, int dir)
2614	{	2309	{
2615	sint16	2310	sint16 dx, dy;
2616	dx,
2617	dy;
2618	int
2619	mflags;	2311	int mflags;
2620		2312
2621	if (dir < 0)	2313	if (dir < 0)
2622	return 0; /* exit condition: invalid direction */	2314	return 0; /* exit condition: invalid direction */
2623		2315
2624	dx = x + freearr_x[dir];	2316	dx = x + freearr_x[dir];
…		…
2637	return 0;	2329	return 0;
2638		2330
2639	/* yes, can see. */	2331	/* yes, can see. */
2640	if (dir < 9)	2332	if (dir < 9)
2641	return 1;	2333	return 1;
		2334
2642	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2335	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2643	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2336	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2337	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2644	}	2338	}
2645
2646
2647		2339
2648	/*	2340	/*
2649	* can_pick(picker, item): finds out if an object is possible to be	2341	* can_pick(picker, item): finds out if an object is possible to be
2650	* picked up by the picker. Returnes 1 if it can be	2342	* picked up by the picker. Returnes 1 if it can be
2651	* picked up, otherwise 0.	2343	* picked up, otherwise 0.
…		…
2662	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2354	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2663	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2355	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2664	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2356	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2665	}	2357	}
2666		2358
2667
2668	/*	2359	/*
2669	* create clone from object to another	2360	* create clone from object to another
2670	*/	2361	*/
2671	object *	2362	object *
2672	object_create_clone (object *asrc)	2363	object_create_clone (object *asrc)
2673	{	2364	{
2674	object *
2675	dst = NULL, *tmp, *src, *part, *prev, *item;	2365	object *dst = 0, *tmp, *src, *part, *prev, *item;
2676		2366
2677	if (!asrc)	2367	if (!asrc)
2678	return NULL;	2368	return 0;
		2369
2679	src = asrc;	2370	src = asrc;
2680	if (src->head)	2371	if (src->head)
2681	src = src->head;	2372	src = src->head;
2682		2373
2683	prev = NULL;	2374	prev = 0;
2684	for (part = src; part; part = part->more)	2375	for (part = src; part; part = part->more)
2685	{	2376	{
2686	tmp = get_object ();	2377	tmp = part->clone ();
2687	copy_object (part, tmp);
2688	tmp->x -= src->x;	2378	tmp->x -= src->x;
2689	tmp->y -= src->y;	2379	tmp->y -= src->y;
		2380
2690	if (!part->head)	2381	if (!part->head)
2691	{	2382	{
2692	dst = tmp;	2383	dst = tmp;
2693	tmp->head = NULL;	2384	tmp->head = 0;
2694	}	2385	}
2695	else	2386	else
2696	{
2697	tmp->head = dst;	2387	tmp->head = dst;
2698	}	2388
2699	tmp->more = NULL;	2389	tmp->more = 0;
		2390
2700	if (prev)	2391	if (prev)
2701	prev->more = tmp;	2392	prev->more = tmp;
		2393
2702	prev = tmp;	2394	prev = tmp;
2703	}	2395	}
2704		2396
2705	/*** copy inventory ***/
2706	for (item = src->inv; item; item = item->below)	2397	for (item = src->inv; item; item = item->below)
2707	{
2708	(void) insert_ob_in_ob (object_create_clone (item), dst);	2398	insert_ob_in_ob (object_create_clone (item), dst);
2709	}
2710		2399
2711	return dst;	2400	return dst;
2712	}	2401	}
2713		2402
2714	/* return true if the object was destroyed, 0 otherwise */
2715	int
2716	was_destroyed (const object *op, tag_t old_tag)
2717	{
2718	/* checking for FLAG_FREED isn't necessary, but makes this function more
2719	* robust */
2720	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2721	}
2722
2723	/* GROS - Creates an object using a string representing its content. */	2403	/* GROS - Creates an object using a string representing its content. */
2724
2725	/* Basically, we save the content of the string to a temp file, then call */	2404	/* Basically, we save the content of the string to a temp file, then call */
2726
2727	/* load_object on it. I admit it is a highly inefficient way to make things, */	2405	/* load_object on it. I admit it is a highly inefficient way to make things, */
2728
2729	/* but it was simple to make and allows reusing the load_object function. */	2406	/* but it was simple to make and allows reusing the load_object function. */
2730
2731	/* Remember not to use load_object_str in a time-critical situation. */	2407	/* Remember not to use load_object_str in a time-critical situation. */
2732
2733	/* Also remember that multiparts objects are not supported for now. */	2408	/* Also remember that multiparts objects are not supported for now. */
2734
2735	object *	2409	object *
2736	load_object_str (const char *obstr)	2410	load_object_str (const char *obstr)
2737	{	2411	{
2738	object *	2412	object *op;
2739	op;
2740	char
2741	filename[MAX_BUF];	2413	char filename[MAX_BUF];
2742		2414
2743	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);	2415	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2744		2416
2745	FILE *
2746	tempfile = fopen (filename, "w");	2417	FILE *tempfile = fopen (filename, "w");
2747		2418
2748	if (tempfile == NULL)	2419	if (tempfile == NULL)
2749	{	2420	{
2750	LOG (llevError, "Error - Unable to access load object temp file\n");	2421	LOG (llevError, "Error - Unable to access load object temp file\n");
2751	return NULL;	2422	return NULL;
2752	};	2423	}
		2424
2753	fprintf (tempfile, obstr);	2425	fprintf (tempfile, obstr);
2754	fclose (tempfile);	2426	fclose (tempfile);
2755		2427
2756	op = get_object ();	2428	op = object::create ();
2757		2429
2758	object_thawer	2430	object_thawer thawer (filename);
2759	thawer (filename);
2760		2431
2761	if (thawer)	2432	if (thawer)
2762	load_object (thawer, op, 0);	2433	load_object (thawer, op, 0);
2763		2434
2764	LOG (llevDebug, " load str completed, object=%s\n", &op->name);	2435	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
…		…
2772	* returns NULL if no match.	2443	* returns NULL if no match.
2773	*/	2444	*/
2774	object *	2445	object *
2775	find_obj_by_type_subtype (const object *who, int type, int subtype)	2446	find_obj_by_type_subtype (const object *who, int type, int subtype)
2776	{	2447	{
2777	object *
2778	tmp;
2779
2780	for (tmp = who->inv; tmp; tmp = tmp->below)	2448	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2781	if (tmp->type == type && tmp->subtype == subtype)	2449	if (tmp->type == type && tmp->subtype == subtype)
2782	return tmp;	2450	return tmp;
2783		2451
2784	return NULL;	2452	return 0;
2785	}	2453	}
2786		2454
2787	/* If ob has a field named key, return the link from the list,	2455	/* If ob has a field named key, return the link from the list,
2788	* otherwise return NULL.	2456	* otherwise return NULL.
2789	*	2457	*
…		…
2791	* do the desired thing.	2459	* do the desired thing.
2792	*/	2460	*/
2793	key_value *	2461	key_value *
2794	get_ob_key_link (const object *ob, const char *key)	2462	get_ob_key_link (const object *ob, const char *key)
2795	{	2463	{
2796	key_value *
2797	link;
2798
2799	for (link = ob->key_values; link != NULL; link = link->next)	2464	for (key_value *link = ob->key_values; link; link = link->next)
2800	{
2801	if (link->key == key)	2465	if (link->key == key)
2802	{
2803	return link;	2466	return link;
2804	}
2805	}
2806		2467
2807	return NULL;	2468	return 0;
2808	}	2469	}
2809		2470
2810	/*	2471	/*
2811	* Returns the value of op has an extra_field for key, or NULL.	2472	* Returns the value of op has an extra_field for key, or NULL.
2812	*	2473	*
…		…
2815	* The returned string is shared.	2476	* The returned string is shared.
2816	*/	2477	*/
2817	const char *	2478	const char *
2818	get_ob_key_value (const object *op, const char *const key)	2479	get_ob_key_value (const object *op, const char *const key)
2819	{	2480	{
2820	key_value *	2481	key_value *link;
2821	link;	2482	shstr_cmp canonical_key (key);
2822	const char *
2823	canonical_key;
2824		2483
2825	canonical_key = shstr::find (key);
2826
2827	if (canonical_key == NULL)	2484	if (!canonical_key)
2828	{	2485	{
2829	/* 1. There being a field named key on any object	2486	/* 1. There being a field named key on any object
2830	* implies there'd be a shared string to find.	2487	* implies there'd be a shared string to find.
2831	* 2. Since there isn't, no object has this field.	2488	* 2. Since there isn't, no object has this field.
2832	* 3. Therefore, *this* object doesn't have this field.	2489	* 3. Therefore, *this* object doesn't have this field.
2833	*/	2490	*/
2834	return NULL;	2491	return 0;
2835	}	2492	}
2836		2493
2837	/* This is copied from get_ob_key_link() above -	2494	/* This is copied from get_ob_key_link() above -
2838	* only 4 lines, and saves the function call overhead.	2495	* only 4 lines, and saves the function call overhead.
2839	*/	2496	*/
2840	for (link = op->key_values; link != NULL; link = link->next)	2497	for (link = op->key_values; link; link = link->next)
2841	{
2842	if (link->key == canonical_key)	2498	if (link->key == canonical_key)
2843	{
2844	return link->value;	2499	return link->value;
2845	}	2500
2846	}
2847	return NULL;	2501	return 0;
2848	}	2502	}
2849		2503
2850		2504
2851	/*	2505	/*
2852	* Updates the canonical_key in op to value.	2506	* Updates the canonical_key in op to value.
…		…
2859	* Returns TRUE on success.	2513	* Returns TRUE on success.
2860	*/	2514	*/
2861	int	2515	int
2862	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)	2516	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2863	{	2517	{
2864	key_value *
2865	field = NULL, *last = NULL;	2518	key_value *field = NULL, *last = NULL;
2866		2519
2867	for (field = op->key_values; field != NULL; field = field->next)	2520	for (field = op->key_values; field != NULL; field = field->next)
2868	{	2521	{
2869	if (field->key != canonical_key)	2522	if (field->key != canonical_key)
2870	{	2523	{
…		…
2888	if (last)	2541	if (last)
2889	last->next = field->next;	2542	last->next = field->next;
2890	else	2543	else
2891	op->key_values = field->next;	2544	op->key_values = field->next;
2892		2545
2893	delete
2894	field;	2546	delete field;
2895	}	2547	}
2896	}	2548	}
2897	return TRUE;	2549	return TRUE;
2898	}	2550	}
2899	/* IF we get here, key doesn't exist */	2551	/* IF we get here, key doesn't exist */
2900		2552
2901	/* No field, we'll have to add it. */	2553	/* No field, we'll have to add it. */
2902		2554
2903	if (!add_key)	2555	if (!add_key)
2904	{
2905	return FALSE;	2556	return FALSE;
2906	}	2557
2907	/* There isn't any good reason to store a null	2558	/* There isn't any good reason to store a null
2908	* value in the key/value list. If the archetype has	2559	* value in the key/value list. If the archetype has
2909	* this key, then we should also have it, so shouldn't	2560	* this key, then we should also have it, so shouldn't
2910	* be here. If user wants to store empty strings,	2561	* be here. If user wants to store empty strings,
2911	* should pass in ""	2562	* should pass in ""
…		…
2934	* Returns TRUE on success.	2585	* Returns TRUE on success.
2935	*/	2586	*/
2936	int	2587	int
2937	set_ob_key_value (object *op, const char *key, const char *value, int add_key)	2588	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2938	{	2589	{
2939	shstr
2940	key_ (key);	2590	shstr key_ (key);
2941		2591
2942	return set_ob_key_value_s (op, key_, value, add_key);	2592	return set_ob_key_value_s (op, key_, value, add_key);
2943	}	2593	}
		2594
		2595	object::depth_iterator::depth_iterator (object *container)
		2596	: iterator_base (container)
		2597	{
		2598	while (item->inv)
		2599	item = item->inv;
		2600	}
		2601
		2602	void
		2603	object::depth_iterator::next ()
		2604	{
		2605	if (item->below)
		2606	{
		2607	item = item->below;
		2608
		2609	while (item->inv)
		2610	item = item->inv;
		2611	}
		2612	else
		2613	item = item->env;
		2614	}
		2615
		2616	// return a suitable string describing an objetc in enough detail to find it
		2617	const char *
		2618	object::debug_desc (char *info) const
		2619	{
		2620	char info2[256 * 3];
		2621	char *p = info;
		2622
		2623	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2624	count,
		2625	&name,
		2626	title ? " " : "",
		2627	title ? (const char *)title : "");
		2628
		2629	if (env)
		2630	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2631
		2632	if (map)
		2633	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2634
		2635	return info;
		2636	}
		2637
		2638	const char *
		2639	object::debug_desc () const
		2640	{
		2641	static char info[256 * 3];
		2642	return debug_desc (info);
		2643	}
		2644

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