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Comparing deliantra/server/common/object.C (file contents):
Revision 1.10 by root, Thu Aug 31 17:54:14 2006 UTC vs.
Revision 1.97 by elmex, Sat Dec 30 21:07:46 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.10 2006/08/31 17:54:14 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	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
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	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>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
42	#ifdef MEMORY_DEBUG	34
43	int nroffreeobjects = 0;	35	#include <bitset>
		36
44	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
45	#undef OBJ_EXPAND	38	static UUID uuid;
46	#define OBJ_EXPAND 1	39	const uint64 UUID_SKIP = 1<<19;
47	#else
48	object objarray[STARTMAX]; /* All objects, allocated this way at first */
49	int nroffreeobjects = STARTMAX; /* How many OBs allocated and free (free) */
50	int nrofallocobjects = STARTMAX; /* How many OBs allocated (free + used) */
51	#endif
52		40
53	object *objects; /* Pointer to the list of used objects */
54	object *free_objects; /* Pointer to the list of unused objects */
55	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 */
56		42
57	short freearr_x[SIZEOFFREE]=	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,
58	{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,
59	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
60	short freearr_y[SIZEOFFREE]=	45	};
61	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
62	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
63	int maxfree[SIZEOFFREE]=	48	};
64	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
65	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
66	int freedir[SIZEOFFREE]= {	52	int freedir[SIZEOFFREE] = {
67	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,
68	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
		55	};
69		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	}
70		133
71	/* 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. */
		135	static int
72	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
73	key_value * wants_field;	138	key_value *wants_field;
74		139
75	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
76	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
77	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
78	*/	143	*/
79		144
80	/* For each field in wants, */	145	/* For each field in wants, */
81	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		147	{
82	key_value * has_field;	148	key_value *has_field;
83		149
84	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
85	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
86		154	{
87	if (has_field == NULL) {
88	/* No field with that name. */	155	/* No field with that name. */
89	return FALSE;	156	return FALSE;
90	}
91		157	}
		158
92	/* Found the matching field. */	159	/* Found the matching field. */
93	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
94	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
95	return FALSE;	163	return FALSE;
96	}	164	}
97		165
98	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
99	}
100		167	}
		168
101	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
102	return TRUE;	170	return TRUE;
103	}	171	}
104		172
105	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
106	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
107	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
108	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
109	*/	179	*/
110	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
111	}	181	}
112		182
113	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
114	* they can be merged together.	184	* they can be merged together.
115	*	185	*
116	* 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
117	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
118	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
119	*	189	*
120	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
121	*	191	*
122	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
123	* check weight	193	* check weight
124	*/	194	*/
125		195	bool object::can_merge_slow (object *ob1, object *ob2)
126	int CAN_MERGE(object *ob1, object *ob2) {	196	{
127
128	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
129	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	198	if (ob1 == ob2
		199	|| ob1->type != ob2->type
		200	|| ob1->speed != ob2->speed
		201	|| ob1->value != ob2->value
		202	|| ob1->name != ob2->name)
		203	return 0;
130		204
131	if (ob1->speed != ob2->speed) return 0;	205	//TODO: this ain't working well, use nicer and correct overflow check
132	/* Note sure why the following is the case - either the object has to	206	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
133	* be animated or have a very low speed. Is this an attempted monster	207	* value could not be stored in a sint32 (which unfortunately sometimes is
134	* check?	208	* used to store nrof).
135	*/	209	*/
136	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	210	if (ob1->nrof + ob2->nrof >= 1UL << 31)
		211	return 0;
		212
		213	/* If the objects have been identified, set the BEEN_APPLIED flag.
		214	* This is to the comparison of the flags below will be OK. We
		215	* just can't ignore the been applied or identified flags, as they
		216	* are not equal - just if it has been identified, the been_applied
		217	* flags lose any meaning.
		218	*/
		219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		221
		222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		224
		225	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
		226	|| ob1->arch != ob2->arch
		227	|| ob1->name != ob2->name
		228	|| ob1->title != ob2->title
		229	|| ob1->msg != ob2->msg
		230	|| ob1->weight != ob2->weight
		231	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		232	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
		233	|| ob1->attacktype != ob2->attacktype
		234	|| ob1->magic != ob2->magic
		235	|| ob1->slaying != ob2->slaying
		236	|| ob1->skill != ob2->skill
		237	|| ob1->value != ob2->value
		238	|| ob1->animation_id != ob2->animation_id
		239	|| ob1->client_type != ob2->client_type
		240	|| ob1->materialname != ob2->materialname
		241	|| ob1->lore != ob2->lore
		242	|| ob1->subtype != ob2->subtype
		243	|| ob1->move_type != ob2->move_type
		244	|| ob1->move_block != ob2->move_block
		245	|| ob1->move_allow != ob2->move_allow
		246	|| ob1->move_on != ob2->move_on
		247	|| ob1->move_off != ob2->move_off
		248	|| ob1->move_slow != ob2->move_slow
		249	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
		250	return 0;
		251
		252	/* This is really a spellbook check - really, we should
		253	* check all objects in the inventory.
		254	*/
		255	if (ob1->inv || ob2->inv)
		256	{
		257	/* if one object has inventory but the other doesn't, not equiv */
		258	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
137	return 0;	259	return 0;
138		260
139	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	261	/* Now check to see if the two inventory objects could merge */
140	* value could not be stored in a sint32 (which unfortunately sometimes is	262	if (!object::can_merge (ob1->inv, ob2->inv))
141	* used to store nrof).
142	*/
143	if (ob1->nrof+ob2->nrof >= 1UL<<31)
144	return 0;	263	return 0;
145		264
146	/* This is really a spellbook check - really, we should
147	* check all objects in the inventory.
148	*/
149	if (ob1->inv || ob2->inv) {
150	/* if one object has inventory but the other doesn't, not equiv */
151	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
152
153	/* Now check to see if the two inventory objects could merge */
154	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
155
156	/* inventory ok - still need to check rest of this object to see	265	/* inventory ok - still need to check rest of this object to see
157	* if it is valid.	266	* if it is valid.
158	*/	267	*/
159	}	268	}
160		269
161	/* If the objects have been identified, set the BEEN_APPLIED flag.
162	* This is to the comparison of the flags below will be OK. We
163	* just can't ignore the been applied or identified flags, as they
164	* are not equal - just if it has been identified, the been_applied
165	* flags lose any meaning.
166	*/
167	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
168	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
169
170	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
171	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
172
173
174	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
175	* being locked in inventory should prevent merging.
176	* 0x4 in flags3 is CLIENT_SENT
177	*/
178	if ((ob1->arch != ob2->arch) ||
179	(ob1->flags[0] != ob2->flags[0]) ||
180	(ob1->flags[1] != ob2->flags[1]) ||
181	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
182	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
183	(ob1->name != ob2->name) ||
184	(ob1->title != ob2->title) ||
185	(ob1->msg != ob2->msg) ||
186	(ob1->weight != ob2->weight) ||
187	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||
188	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
189	(ob1->attacktype != ob2->attacktype) ||
190	(ob1->magic != ob2->magic) ||
191	(ob1->slaying != ob2->slaying) ||
192	(ob1->skill != ob2->skill) ||
193	(ob1->value != ob2->value) ||
194	(ob1->animation_id != ob2->animation_id) ||
195	(ob1->client_type != ob2->client_type) ||
196	(ob1->materialname != ob2->materialname) ||
197	(ob1->lore != ob2->lore) ||
198	(ob1->subtype != ob2->subtype) ||
199	(ob1->move_type != ob2->move_type) ||
200	(ob1->move_block != ob2->move_block) ||
201	(ob1->move_allow != ob2->move_allow) ||
202	(ob1->move_on != ob2->move_on) ||
203	(ob1->move_off != ob2->move_off) ||
204	(ob1->move_slow != ob2->move_slow) ||
205	(ob1->move_slow_penalty != ob2->move_slow_penalty)
206	)
207	return 0;
208
209	/* Don't merge objects that are applied. With the new 'body' code,	270	/* Don't merge objects that are applied. With the new 'body' code,
210	* it is possible for most any character to have more than one of	271	* it is possible for most any character to have more than one of
211	* some items equipped, and we don't want those to merge.	272	* some items equipped, and we don't want those to merge.
212	*/	273	*/
213	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	274	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		275	return 0;
		276
		277	/* Note sure why the following is the case - either the object has to
		278	* be animated or have a very low speed. Is this an attempted monster
		279	* check?
		280	*/
		281	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
		282	return 0;
		283
		284	switch (ob1->type)
		285	{
		286	case SCROLL:
		287	if (ob1->level != ob2->level)
		288	return 0;
		289	break;
		290	}
		291
		292	if (ob1->key_values != NULL || ob2->key_values != NULL)
		293	{
		294	/* At least one of these has key_values. */
		295	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
		296	/* One has fields, but the other one doesn't. */
214	return 0;	297	return 0;
215
216	switch (ob1->type) {
217	case SCROLL:
218	if (ob1->level != ob2->level) return 0;
219	break;
220
221	}
222	if (ob1->key_values != NULL || ob2->key_values != NULL) {
223	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {
225	/* One has fields, but the other one doesn't. */
226	return 0;
227	} else if (!compare_ob_value_lists(ob1, ob2)) {	298	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	299	return 0;
229	}	300	}
		301
		302	//TODO: generate an event or call into perl for additional checks
		303	if (ob1->self || ob2->self)
230	}	304	{
		305	ob1->optimise ();
		306	ob2->optimise ();
231		307
		308	if (ob1->self || ob2->self)
		309	return 0;
		310	}
		311
232	/* Everything passes, must be OK. */	312	/* Everything passes, must be OK. */
233	return 1;	313	return 1;
234	}	314	}
235		315
236	/*	316	/*
237	* sum_weight() is a recursive function which calculates the weight	317	* sum_weight() is a recursive function which calculates the weight
238	* an object is carrying. It goes through in figures out how much	318	* an object is carrying. It goes through in figures out how much
239	* containers are carrying, and sums it up.	319	* containers are carrying, and sums it up.
240	*/	320	*/
241	signed long sum_weight(object *op) {	321	long
		322	sum_weight (object *op)
		323	{
242	signed long sum;	324	long sum;
243	object *inv;	325	object *inv;
		326
244	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	327	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		328	{
245	if (inv->inv)	329	if (inv->inv)
246	sum_weight(inv);	330	sum_weight (inv);
247	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	331	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
248	}	332	}
		333
249	if (op->type == CONTAINER && op->stats.Str)	334	if (op->type == CONTAINER && op->stats.Str)
250	sum = (sum * (100 - op->stats.Str))/100;	335	sum = (sum * (100 - op->stats.Str)) / 100;
		336
251	if(op->carrying != sum)	337	if (op->carrying != sum)
252	op->carrying = sum;	338	op->carrying = sum;
		339
253	return sum;	340	return sum;
254	}	341	}
255		342
256	/**	343	/**
257	* Return the outermost environment object for a given object.	344	* Return the outermost environment object for a given object.
258	*/	345	*/
259		346
		347	object *
260	object *object_get_env_recursive (object *op) {	348	object_get_env_recursive (object *op)
		349	{
261	while (op->env != NULL)	350	while (op->env != NULL)
262	op = op->env;	351	op = op->env;
263	return op;	352	return op;
264	}
265
266	/*
267	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
268	* a better check. We basically keeping traversing up until we can't
269	* or find a player.
270	*/
271
272	object *is_player_inv (object *op) {
273	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
274	if (op->env==op)
275	op->env = NULL;
276	return op;
277	}	353	}
278		354
279	/*	355	/*
280	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	356	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
281	* Some error messages.	357	* Some error messages.
282	* The result of the dump is stored in the static global errmsg array.	358	* The result of the dump is stored in the static global errmsg array.
283	*/	359	*/
284		360
285	void dump_object2(object *op) {	361	char *
286	errmsg[0] = 0;
287	return;
288	//TODO//D#d#
289	#if 0
290	char *cp;
291	/* object *tmp;*/
292
293	if(op->arch!=NULL) {
294	strcat(errmsg,"arch ");
295	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
296	strcat(errmsg,"\n");
297	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
298	strcat(errmsg,cp);
299	#if 0
300	/* Don't dump player diffs - they are too long, mostly meaningless, and
301	* will overflow the buffer.
302	* Changed so that we don't dump inventory either. This may
303	* also overflow the buffer.
304	*/
305	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
306	strcat(errmsg,cp);
307	for (tmp=op->inv; tmp; tmp=tmp->below)
308	dump_object2(tmp);
309	#endif
310	strcat(errmsg,"end\n");
311	} else {
312	strcat(errmsg,"Object ");
313	if (op->name==NULL) strcat(errmsg, "(null)");
314	else strcat(errmsg,op->name);
315	strcat(errmsg,"\n");
316	#if 0
317	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
318	strcat(errmsg,cp);
319	for (tmp=op->inv; tmp; tmp=tmp->below)
320	dump_object2(tmp);
321	#endif
322	strcat(errmsg,"end\n");
323	}
324	#endif
325	}
326
327	/*
328	* Dumps an object. Returns output in the static global errmsg array.
329	*/
330
331	void dump_object(object *op) {	362	dump_object (object *op)
332	if(op==NULL) {	363	{
333	strcpy(errmsg,"[NULL pointer]");	364	if (!op)
334	return;	365	return strdup ("[NULLOBJ]");
335	}
336	errmsg[0]='\0';
337	dump_object2(op);
338	}
339		366
340	void dump_all_objects(void) {	367	object_freezer freezer;
341	object *op;	368	save_object (freezer, op, 1);
342	for(op=objects;op!=NULL;op=op->next) {	369	return freezer.as_string ();
343	dump_object(op);
344	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
345	}
346	}	370	}
347		371
348	/*	372	/*
349	* get_nearest_part(multi-object, object 2) returns the part of the	373	* get_nearest_part(multi-object, object 2) returns the part of the
350	* multi-object 1 which is closest to the second object.	374	* multi-object 1 which is closest to the second object.
351	* If it's not a multi-object, it is returned.	375	* If it's not a multi-object, it is returned.
352	*/	376	*/
353		377
		378	object *
354	object *get_nearest_part(object *op, const object *pl) {	379	get_nearest_part (object *op, const object *pl)
		380	{
355	object *tmp,*closest;	381	object *tmp, *closest;
356	int last_dist,i;	382	int last_dist, i;
		383
357	if(op->more==NULL)	384	if (op->more == NULL)
358	return op;	385	return op;
359	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	386	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
360	if((i=distance(tmp,pl))<last_dist)	387	if ((i = distance (tmp, pl)) < last_dist)
361	closest=tmp,last_dist=i;	388	closest = tmp, last_dist = i;
362	return closest;	389	return closest;
363	}	390	}
364		391
365	/*	392	/*
366	* Returns the object which has the count-variable equal to the argument.	393	* Returns the object which has the count-variable equal to the argument.
367	*/	394	*/
368		395
		396	object *
369	object *find_object(tag_t i) {	397	find_object (tag_t i)
370	object *op;	398	{
371	for(op=objects;op!=NULL;op=op->next)	399	for (object *op = object::first; op; op = op->next)
372	if(op->count==i)	400	if (op->count == i)
373	break;	401	return op;
		402
374	return op;	403	return 0;
375	}	404	}
376		405
377	/*	406	/*
378	* Returns the first object which has a name equal to the argument.	407	* Returns the first object which has a name equal to the argument.
379	* Used only by the patch command, but not all that useful.	408	* Used only by the patch command, but not all that useful.
380	* Enables features like "patch <name-of-other-player> food 999"	409	* Enables features like "patch <name-of-other-player> food 999"
381	*/	410	*/
382		411
		412	object *
383	object *find_object_name(const char *str) {	413	find_object_name (const char *str)
384	const char *name=add_string(str);	414	{
		415	shstr_cmp str_ (str);
385	object *op;	416	object *op;
		417
386	for(op=objects;op!=NULL;op=op->next)	418	for (op = object::first; op != NULL; op = op->next)
387	if(op->name==name)	419	if (op->name == str_)
388	break;	420	break;
389	free_string(name);	421
390	return op;	422	return op;
391	}	423	}
392		424
		425	void
393	void free_all_object_data(void) {	426	free_all_object_data ()
394	#ifdef MEMORY_DEBUG
395	object *op, *next;
396
397	for (op=free_objects; op!=NULL; ) {
398	next=op->next;
399	free(op);
400	nrofallocobjects--;
401	nroffreeobjects--;
402	op=next;
403	}
404	#endif
405	LOG(llevDebug,"%d allocated objects, %d free objects, STARMAX=%d\n",
406	nrofallocobjects, nroffreeobjects,STARTMAX);
407	}
408
409	/*
410	* Returns the object which this object marks as being the owner.
411	* A id-scheme is used to avoid pointing to objects which have been
412	* freed and are now reused. If this is detected, the owner is
413	* set to NULL, and NULL is returned.
414	* Changed 2004-02-12 - if the player is setting at the play again
415	* prompt, he is removed, and we don't want to treat him as an owner of
416	* anything, so check removed flag. I don't expect that this should break
417	* anything - once an object is removed, it is basically dead anyways.
418	*/
419
420	object *get_owner(object *op) {
421	if(op->owner==NULL)
422	return NULL;
423
424	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
425	op->owner->count==op->ownercount)
426	return op->owner;
427
428	op->owner=NULL;
429	op->ownercount=0;
430	return NULL;
431	}
432
433	void clear_owner(object *op)
434	{	427	{
435	if (!op) return;	428	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
436
437	if (op->owner && op->ownercount == op->owner->count)
438	op->owner->refcount--;
439
440	op->owner = NULL;
441	op->ownercount = 0;
442	}	429	}
443
444
445		430
446	/*	431	/*
447	* Sets the owner and sets the skill and exp pointers to owner's current	432	* Sets the owner and sets the skill and exp pointers to owner's current
448	* skill and experience objects.	433	* skill and experience objects.
449	*/	434	*/
450	void set_owner (object *op, object *owner)	435	void
		436	object::set_owner (object *owner)
451	{	437	{
452	if(owner==NULL||op==NULL)	438	if (!owner)
453	return;	439	return;
454		440
455	/* next line added to allow objects which own objects */	441	/* next line added to allow objects which own objects */
456	/* Add a check for ownercounts in here, as I got into an endless loop	442	/* Add a check for ownercounts in here, as I got into an endless loop
457	* with the fireball owning a poison cloud which then owned the	443	* with the fireball owning a poison cloud which then owned the
458	* fireball. I believe that was caused by one of the objects getting	444	* fireball. I believe that was caused by one of the objects getting
459	* freed and then another object replacing it. Since the ownercounts	445	* freed and then another object replacing it. Since the ownercounts
460	* didn't match, this check is valid and I believe that cause is valid.	446	* didn't match, this check is valid and I believe that cause is valid.
461	*/	447	*/
462	while (owner->owner && owner!=owner->owner &&	448	while (owner->owner)
463	owner->ownercount==owner->owner->count) owner=owner->owner;	449	owner = owner->owner;
464		450
465	/* IF the owner still has an owner, we did not resolve to a final owner.
466	* so lets not add to that.
467	*/
468	if (owner->owner) return;
469
470	op->owner=owner;	451	this->owner = owner;
471
472	op->ownercount=owner->count;
473	owner->refcount++;
474
475	}
476
477	/* Set the owner to clone's current owner and set the skill and experience
478	* objects to clone's objects (typically those objects that where the owner's
479	* current skill and experience objects at the time when clone's owner was
480	* set - not the owner's current skill and experience objects).
481	*
482	* Use this function if player created an object (e.g. fire bullet, swarm
483	* spell), and this object creates further objects whose kills should be
484	* accounted for the player's original skill, even if player has changed
485	* skills meanwhile.
486	*/
487	void copy_owner (object *op, object *clone)
488	{
489	object *owner = get_owner (clone);
490	if (owner == NULL) {
491	/* players don't have owners - they own themselves. Update
492	* as appropriate.
493	*/
494	if (clone->type == PLAYER) owner=clone;
495	else return;
496	}
497	set_owner(op, owner);
498
499	}
500
501	/*
502	* Resets vital variables in an object
503	*/
504
505	void reset_object(object *op) {
506
507	op->name = NULL;
508	op->name_pl = NULL;
509	op->title = NULL;
510	op->race = NULL;
511	op->slaying = NULL;
512	op->skill = NULL;
513	op->msg = NULL;
514	op->materialname = NULL;
515	op->lore = NULL;
516	clear_object(op);
517	}	452	}
518		453
519	/* Zero the key_values on op, decrementing the shared-string	454	/* Zero the key_values on op, decrementing the shared-string
520	* refcounts and freeing the links.	455	* refcounts and freeing the links.
521	*/	456	*/
		457	static void
522	static void free_key_values(object * op) {	458	free_key_values (object *op)
523	key_value * i;	459	{
524	key_value * next = NULL;	460	for (key_value *i = op->key_values; i != 0;)
525		461	{
526	if (op->key_values == NULL) return;	462	key_value *next = i->next;
		463	delete i;
		464
		465	i = next;
527		466	}
528	for (i = op->key_values; i != NULL; i = next) {	467
529	/* Store next *first*. */
530	next = i->next;
531
532	if (i->key) FREE_AND_CLEAR_STR(i->key);
533	if (i->value) FREE_AND_CLEAR_STR(i->value);
534	i->next = NULL;
535	free(i);
536	}
537
538	op->key_values = NULL;	468	op->key_values = 0;
539	}	469	}
540		470
541
542	/*	471	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object(object *op) {
548	op->clear ();
549
550	event *evt;
551	event *evt2;
552
553	/* redo this to be simpler/more efficient. Was also seeing
554	* crashes in the old code. Move this to the top - am
555	* seeing periodic crashes in this code, and would like to have
556	* as much info available as possible (eg, object name).
557	*/
558	for (evt = op->events; evt; evt=evt2) {
559	evt2 = evt->next;
560
561	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
562	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
563	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
564
565	free(evt);
566	}
567	op->events = NULL;
568
569	free_key_values(op);
570
571	/* the memset will clear all these values for us, but we need
572	* to reduce the refcount on them.
573	*/
574	if (op->name!=NULL) FREE_AND_CLEAR_STR(op->name);
575	if (op->name_pl!=NULL) FREE_AND_CLEAR_STR(op->name_pl);
576	if (op->title != NULL) FREE_AND_CLEAR_STR(op->title);
577	if (op->race!=NULL) FREE_AND_CLEAR_STR(op->race);
578	if (op->slaying!=NULL) FREE_AND_CLEAR_STR(op->slaying);
579	if (op->skill!=NULL) FREE_AND_CLEAR_STR(op->skill);
580	if (op->msg!=NULL) FREE_AND_CLEAR_STR(op->msg);
581	if (op->lore!=NULL) FREE_AND_CLEAR_STR(op->lore);
582	if (op->materialname!= NULL) FREE_AND_CLEAR_STR(op->materialname);
583
584
585	memset((void*)op, 0, sizeof (object_special));
586	/* Below here, we clear things that are not done by the memset,
587	* or set default values that are not zero.
588	*/
589	/* This is more or less true */
590	SET_FLAG(op, FLAG_REMOVED);
591
592
593	op->contr = NULL;
594	op->below=NULL;
595	op->above=NULL;
596	op->inv=NULL;
597	op->events=NULL;
598	op->container=NULL;
599	op->env=NULL;
600	op->more=NULL;
601	op->head=NULL;
602	op->map=NULL;
603	op->refcount=0;
604	op->active_next = NULL;
605	op->active_prev = NULL;
606	/* What is not cleared is next, prev, and count */
607
608	op->expmul=1.0;
609	op->face = blank_face;
610	op->attacked_by_count = (tag_t) -1;
611	if (settings.casting_time)
612	op->casting_time = -1;
613
614	}
615
616	/*
617	* copy object first frees everything allocated by the second object,	472	* copy_to first frees everything allocated by the dst object,
618	* and then copies the contends of the first object into the second	473	* and then copies the contents of itself into the second
619	* object, allocating what needs to be allocated. Basically, any	474	* object, allocating what needs to be allocated. Basically, any
620	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	475	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
621	* if the first object is freed, the pointers in the new object	476	* if the first object is freed, the pointers in the new object
622	* will point at garbage.	477	* will point at garbage.
623	*/	478	*/
		479	void
		480	object::copy_to (object *dst)
		481	{
		482	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
		483	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
624		484
625	void copy_object(object *op2, object *op) {	485	*(object_copy *)dst = *this;
626	int is_freed=QUERY_FLAG(op,FLAG_FREED),is_removed=QUERY_FLAG(op,FLAG_REMOVED);
627	event *evt, *evt2, *evt_new;
628		486
629	op->clear ();	487	if (is_freed)
		488	SET_FLAG (dst, FLAG_FREED);
630		489
631	/* Decrement the refcounts, but don't bother zeroing the fields;	490	if (is_removed)
632	they'll be overwritten by memcpy. */	491	SET_FLAG (dst, FLAG_REMOVED);
633	if(op->name!=NULL) free_string(op->name);
634	if(op->name_pl!=NULL) free_string(op->name_pl);
635	if(op->title!=NULL) free_string(op->title);
636	if(op->race!=NULL) free_string(op->race);
637	if(op->slaying!=NULL) free_string(op->slaying);
638	if(op->skill!=NULL) free_string(op->skill);
639	if(op->msg!=NULL) free_string(op->msg);
640	if(op->lore!=NULL) free_string(op->lore);
641	if(op->materialname != NULL) free_string(op->materialname);
642	if(op->custom_name != NULL) free_string(op->custom_name);
643		492
644	/* Basically, same code as from clear_object() */	493	if (speed < 0)
645	for (evt = op->events; evt; evt=evt2) {
646	evt2 = evt->next;
647
648	if (evt->hook != NULL) FREE_AND_CLEAR_STR(evt->hook);
649	if (evt->plugin != NULL) FREE_AND_CLEAR_STR(evt->plugin);
650	if (evt->options != NULL) FREE_AND_CLEAR_STR(evt->options);
651
652	free(evt);
653	}
654	op->events = NULL;
655
656	free_key_values(op);
657
658	*(object_special *)op = *(object_special *)op2;
659	op2->clone (op);
660
661	if(is_freed) SET_FLAG(op,FLAG_FREED);
662	if(is_removed) SET_FLAG(op,FLAG_REMOVED);
663	if(op->name!=NULL) add_refcount(op->name);
664	if(op->name_pl!=NULL) add_refcount(op->name_pl);
665	if(op->title!=NULL) add_refcount(op->title);
666	if(op->race!=NULL) add_refcount(op->race);
667	if(op->slaying!=NULL) add_refcount(op->slaying);
668	if(op->skill!=NULL) add_refcount(op->skill);
669	if(op->lore!=NULL) add_refcount(op->lore);
670	if(op->msg!=NULL) add_refcount(op->msg);
671	if(op->custom_name!=NULL) add_refcount(op->custom_name);
672	if (op->materialname != NULL) add_refcount(op->materialname);
673
674	if((op2->speed<0) && !editor)
675	op->speed_left=op2->speed_left-RANDOM()%200/100.0;	494	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
676		495
677	/* Copy over event information */
678	evt2 = NULL;
679	for (evt = op2->events; evt; evt=evt->next) {
680	evt_new = (event *) malloc(sizeof(event));
681	memcpy(evt_new, evt, sizeof(event));
682	if (evt_new->hook) add_refcount(evt_new->hook);
683	if (evt_new->plugin) add_refcount(evt_new->plugin);
684	if (evt_new->options) add_refcount(evt_new->options);
685	evt_new->next = NULL;
686
687	/* Try to be a little clever here, and store away the
688	* last event we copied, so that its simpler to update the
689	* pointer.
690	*/
691	if (evt2)
692	evt2->next = evt_new;
693	else
694	op->events = evt_new;
695
696	evt2 = evt_new;
697	}
698	/* Copy over key_values, if any. */	496	/* Copy over key_values, if any. */
699	if (op2->key_values != NULL) {	497	if (key_values)
		498	{
700	key_value * tail = NULL;	499	key_value *tail = 0;
701	key_value * i;	500	key_value *i;
702		501
703	op->key_values = NULL;	502	dst->key_values = 0;
704		503
705	for (i = op2->key_values; i != NULL; i = i->next) {	504	for (i = key_values; i; i = i->next)
706	key_value * new_link = (key_value *) malloc(sizeof(key_value));	505	{
		506	key_value *new_link = new key_value;
707		507
708	new_link->next = NULL;	508	new_link->next = 0;
709	new_link->key = add_refcount(i->key);	509	new_link->key = i->key;
710	if (i->value)
711	new_link->value = add_refcount(i->value);	510	new_link->value = i->value;
712	else
713	new_link->value = NULL;
714		511
715	/* Try and be clever here, too. */	512	/* Try and be clever here, too. */
716	if (op->key_values == NULL) {	513	if (!dst->key_values)
		514	{
717	op->key_values = new_link;	515	dst->key_values = new_link;
718	tail = new_link;	516	tail = new_link;
719	} else {
720	tail->next = new_link;
721	tail = new_link;
722	}	517	}
		518	else
		519	{
		520	tail->next = new_link;
		521	tail = new_link;
723	}	522	}
724	}	523	}
725
726	update_ob_speed(op);
727	}
728
729	/*
730	* expand_objects() allocates more objects for the list of unused objects.
731	* It is called from get_object() if the unused list is empty.
732	*/
733
734	void expand_objects(void) {
735	int i;
736	object *obj;
737	obj = (object *) CALLOC(OBJ_EXPAND,sizeof(object));
738
739	if(obj==NULL)
740	fatal(OUT_OF_MEMORY);
741	free_objects=obj;
742	obj[0].prev=NULL;
743	obj[0].next= &obj[1],
744	SET_FLAG(&(obj[0]), FLAG_REMOVED);
745	SET_FLAG(&(obj[0]), FLAG_FREED);
746
747	for(i=1;i<OBJ_EXPAND-1;i++) {
748	obj[i].next= &obj[i+1],
749	obj[i].prev= &obj[i-1],
750	SET_FLAG(&(obj[i]), FLAG_REMOVED);
751	SET_FLAG(&(obj[i]), FLAG_FREED);
752	}	524	}
753	obj[OBJ_EXPAND-1].prev= &obj[OBJ_EXPAND-2],
754	obj[OBJ_EXPAND-1].next=NULL,
755	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_REMOVED);
756	SET_FLAG(&(obj[OBJ_EXPAND-1]), FLAG_FREED);
757		525
758	nrofallocobjects += OBJ_EXPAND;	526	dst->set_speed (dst->speed);
759	nroffreeobjects += OBJ_EXPAND;
760	}	527	}
761		528
762	/*
763	* get_object() grabs an object from the list of unused objects, makes
764	* sure it is initialised, and returns it.
765	* If there are no free objects, expand_objects() is called to get more.
766	*/
767
768	object *get_object(void) {
769	object *op;	529	object *
770		530	object::clone ()
771	if(free_objects==NULL) {	531	{
772	expand_objects();	532	object *neu = create ();
773	}	533	copy_to (neu);
774	op=free_objects;
775	#ifdef MEMORY_DEBUG
776	/* The idea is hopefully by doing a realloc, the memory
777	* debugging program will now use the current stack trace to
778	* report leaks.
779	*/
780	op = realloc(op, sizeof(object));
781	SET_FLAG(op, FLAG_REMOVED);
782	SET_FLAG(op, FLAG_FREED);
783	#endif
784
785	if(!QUERY_FLAG(op,FLAG_FREED)) {
786	LOG(llevError,"Fatal: Getting busy object.\n");
787	}
788	free_objects=op->next;
789	if(free_objects!=NULL)
790	free_objects->prev=NULL;
791	op->count= ++ob_count;
792	op->name=NULL;
793	op->name_pl=NULL;
794	op->title=NULL;
795	op->race=NULL;
796	op->slaying=NULL;
797	op->skill = NULL;
798	op->lore=NULL;
799	op->msg=NULL;
800	op->materialname=NULL;
801	op->next=objects;
802	op->prev=NULL;
803	op->active_next = NULL;
804	op->active_prev = NULL;
805	if(objects!=NULL)
806	objects->prev=op;
807	objects=op;
808	clear_object(op);
809	SET_FLAG(op,FLAG_REMOVED);
810	nroffreeobjects--;
811	return op;	534	return neu;
812	}	535	}
813		536
814	/*	537	/*
815	* If an object with the IS_TURNABLE() flag needs to be turned due	538	* If an object with the IS_TURNABLE() flag needs to be turned due
816	* to the closest player being on the other side, this function can	539	* to the closest player being on the other side, this function can
817	* be called to update the face variable, _and_ how it looks on the map.	540	* be called to update the face variable, _and_ how it looks on the map.
818	*/	541	*/
819		542	void
820	void update_turn_face(object *op) {	543	update_turn_face (object *op)
		544	{
821	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	545	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
822	return;	546	return;
		547
823	SET_ANIMATION(op, op->direction);	548	SET_ANIMATION (op, op->direction);
824	update_object(op,UP_OBJ_FACE);	549	update_object (op, UP_OBJ_FACE);
825	}	550	}
826		551
827	/*	552	/*
828	* Updates the speed of an object. If the speed changes from 0 to another	553	* Updates the speed of an object. If the speed changes from 0 to another
829	* value, or vice versa, then add/remove the object from the active list.	554	* value, or vice versa, then add/remove the object from the active list.
830	* This function needs to be called whenever the speed of an object changes.	555	* This function needs to be called whenever the speed of an object changes.
831	*/	556	*/
832		557	void
833	void update_ob_speed(object *op) {	558	object::set_speed (float speed)
834	extern int arch_init;	559	{
835		560	if (flag [FLAG_FREED] && speed)
836	/* No reason putting the archetypes objects on the speed list,	561	{
837	* since they never really need to be updated.
838	*/
839
840	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
841	LOG(llevError,"Object %s is freed but has speed.\n", op->name);	562	LOG (llevError, "Object %s is freed but has speed.\n", &name);
842	#ifdef MANY_CORES
843	abort();
844	#else
845	op->speed = 0;	563	speed = 0;
846	#endif
847	}	564	}
848	if (arch_init) {
849	return;
850	}
851	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
852	/* If already on active list, don't do anything */
853	if (op->active_next || op->active_prev || op==active_objects)
854	return;
855		565
856	/* process_events() expects us to insert the object at the beginning	566	this->speed = speed;
857	* of the list. */	567
858	op->active_next = active_objects;	568	if (has_active_speed ())
859	if (op->active_next!=NULL)	569	activate (false);
860	op->active_next->active_prev = op;
861	active_objects = op;
862	}
863	else {	570	else
864	/* If not on the active list, nothing needs to be done */	571	deactivate (false);
865	if (!op->active_next && !op->active_prev && op!=active_objects)
866	return;
867
868	if (op->active_prev==NULL) {
869	active_objects = op->active_next;
870	if (op->active_next!=NULL)
871	op->active_next->active_prev = NULL;
872	}
873	else {
874	op->active_prev->active_next = op->active_next;
875	if (op->active_next)
876	op->active_next->active_prev = op->active_prev;
877	}
878	op->active_next = NULL;
879	op->active_prev = NULL;
880	}
881	}	572	}
882		573
883	/* This function removes object 'op' from the list of active
884	* objects.
885	* This should only be used for style maps or other such
886	* reference maps where you don't want an object that isn't
887	* in play chewing up cpu time getting processed.
888	* The reverse of this is to call update_ob_speed, which
889	* will do the right thing based on the speed of the object.
890	*/
891	void remove_from_active_list(object *op)
892	{
893	/* If not on the active list, nothing needs to be done */
894	if (!op->active_next && !op->active_prev && op!=active_objects)
895	return;
896
897	if (op->active_prev==NULL) {
898	active_objects = op->active_next;
899	if (op->active_next!=NULL)
900	op->active_next->active_prev = NULL;
901	}
902	else {
903	op->active_prev->active_next = op->active_next;
904	if (op->active_next)
905	op->active_next->active_prev = op->active_prev;
906	}
907	op->active_next = NULL;
908	op->active_prev = NULL;
909	}
910
911	/*	574	/*
912	* update_object() updates the array which represents the map.	575	* update_object() updates the the map.
913	* It takes into account invisible objects (and represent squares covered	576	* It takes into account invisible objects (and represent squares covered
914	* by invisible objects by whatever is below them (unless it's another	577	* by invisible objects by whatever is below them (unless it's another
915	* invisible object, etc...)	578	* invisible object, etc...)
916	* If the object being updated is beneath a player, the look-window	579	* If the object being updated is beneath a player, the look-window
917	* of that player is updated (this might be a suboptimal way of	580	* of that player is updated (this might be a suboptimal way of
918	* updating that window, though, since update_object() is called _often_)	581	* updating that window, though, since update_object() is called _often_)
919	*	582	*
920	* action is a hint of what the caller believes need to be done.	583	* action is a hint of what the caller believes need to be done.
921	* For example, if the only thing that has changed is the face (due to
922	* an animation), we don't need to call update_position until that actually
923	* comes into view of a player. OTOH, many other things, like addition/removal
924	* of walls or living creatures may need us to update the flags now.
925	* current action are:	584	* current action are:
926	* UP_OBJ_INSERT: op was inserted	585	* UP_OBJ_INSERT: op was inserted
927	* UP_OBJ_REMOVE: op was removed	586	* UP_OBJ_REMOVE: op was removed
928	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	587	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
929	* as that is easier than trying to look at what may have changed.	588	* as that is easier than trying to look at what may have changed.
930	* UP_OBJ_FACE: only the objects face has changed.	589	* UP_OBJ_FACE: only the objects face has changed.
931	*/	590	*/
932		591	void
933	void update_object(object *op, int action) {	592	update_object (object *op, int action)
934	int update_now=0, flags;	593	{
935	MoveType move_on, move_off, move_block, move_slow;	594	MoveType move_on, move_off, move_block, move_slow;
936		595
937	if (op == NULL) {	596	if (op == NULL)
		597	{
938	/* this should never happen */	598	/* this should never happen */
939	LOG(llevDebug,"update_object() called for NULL object.\n");	599	LOG (llevDebug, "update_object() called for NULL object.\n");
940	return;	600	return;
941	}
942		601	}
943	if(op->env!=NULL) {	602
		603	if (op->env)
		604	{
944	/* Animation is currently handled by client, so nothing	605	/* Animation is currently handled by client, so nothing
945	* to do in this case.	606	* to do in this case.
946	*/	607	*/
947	return;	608	return;
948	}	609	}
949		610
950	/* If the map is saving, don't do anything as everything is	611	/* If the map is saving, don't do anything as everything is
951	* going to get freed anyways.	612	* going to get freed anyways.
952	*/	613	*/
953	if (!op->map || op->map->in_memory == MAP_SAVING) return;	614	if (!op->map || op->map->in_memory == MAP_SAVING)
954		615	return;
		616
955	/* make sure the object is within map boundaries */	617	/* make sure the object is within map boundaries */
956	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	618	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
957	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	619	{
958	LOG(llevError,"update_object() called for object out of map!\n");	620	LOG (llevError, "update_object() called for object out of map!\n");
959	#ifdef MANY_CORES	621	#ifdef MANY_CORES
960	abort();	622	abort ();
961	#endif	623	#endif
962	return;	624	return;
963	}
964		625	}
965	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
966	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
967	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
968	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
969	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
970	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
971		626
		627	mapspace &m = op->ms ();
		628
		629	if (m.flags_ & P_NEED_UPDATE)
		630	/* nop */;
972	if (action == UP_OBJ_INSERT) {	631	else if (action == UP_OBJ_INSERT)
		632	{
		633	// this is likely overkill, TODO: revisit (schmorp)
973	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	634	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
974	update_now=1;
975
976	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	635	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
977	update_now=1;	636	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
978		637	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		638	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
979	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	639	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
980	update_now=1;	640	|| (m.move_on | op->move_on ) != m.move_on
981
982	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
983	update_now=1;
984
985	if ((move_on | op->move_on) != move_on) update_now=1;
986	if ((move_off | op->move_off) != move_off) update_now=1;	641	|| (m.move_off | op->move_off ) != m.move_off
		642	|| (m.move_slow | op->move_slow) != m.move_slow
987	/* This isn't perfect, but I don't expect a lot of objects to	643	/* This isn't perfect, but I don't expect a lot of objects to
988	* to have move_allow right now.	644	* to have move_allow right now.
989	*/	645	*/
990	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	646	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
991	update_now=1;	647	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
992	if ((move_slow | op->move_slow) != move_slow) update_now=1;	648	m.flags_ = P_NEED_UPDATE;
993	}	649	}
994	/* if the object is being removed, we can't make intelligent	650	/* if the object is being removed, we can't make intelligent
995	* decisions, because remove_ob can't really pass the object	651	* decisions, because remove_ob can't really pass the object
996	* that is being removed.	652	* that is being removed.
997	*/	653	*/
998	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	654	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
999	update_now=1;	655	m.flags_ = P_NEED_UPDATE;
1000	} else if (action == UP_OBJ_FACE) {	656	else if (action == UP_OBJ_FACE)
1001	/* Nothing to do for that case */	657	/* Nothing to do for that case */ ;
1002	}
1003	else {	658	else
1004	LOG(llevError,"update_object called with invalid action: %d\n", action);	659	LOG (llevError, "update_object called with invalid action: %d\n", action);
1005	}
1006		660
1007	if (update_now) {
1008	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
1009	update_position(op->map, op->x, op->y);
1010	}
1011
1012	if(op->more!=NULL)	661	if (op->more)
1013	update_object(op->more, action);	662	update_object (op->more, action);
1014	}	663	}
1015		664
		665	object::vector object::objects; // not yet used
		666	object *object::first;
1016		667
1017	/*	668	object::object ()
1018	* free_object() frees everything allocated by an object, removes	669	{
1019	* it from the list of used objects, and puts it on the list of	670	SET_FLAG (this, FLAG_REMOVED);
1020	* free objects. The IS_FREED() flag is set in the object.
1021	* The object must have been removed by remove_ob() first for
1022	* this function to succeed.
1023	*
1024	* If free_inventory is set, free inventory as well. Else drop items in
1025	* inventory to the ground.
1026	*/
1027		671
1028	void free_object(object *ob) {	672	expmul = 1.0;
1029	free_object2(ob, 0);	673	face = blank_face;
1030	}	674	}
1031	void free_object2(object *ob, int free_inventory) {
1032	object *tmp,*op;
1033		675
1034	ob->clear ();	676	object::~object ()
		677	{
		678	free_key_values (this);
		679	}
1035		680
1036	if (!QUERY_FLAG(ob,FLAG_REMOVED)) {	681	void object::link ()
1037	LOG(llevDebug,"Free object called with non removed object\n");	682	{
1038	dump_object(ob);	683	count = ++ob_count;
1039	#ifdef MANY_CORES	684	uuid = gen_uuid ();
1040	abort();	685
1041	#endif	686	prev = 0;
		687	next = object::first;
		688
		689	if (object::first)
		690	object::first->prev = this;
		691
		692	object::first = this;
		693	}
		694
		695	void object::unlink ()
		696	{
		697	if (this == object::first)
		698	object::first = next;
		699
		700	/* Remove this object from the list of used objects */
		701	if (prev) prev->next = next;
		702	if (next) next->prev = prev;
		703
		704	prev = 0;
		705	next = 0;
		706	}
		707
		708	void
		709	object::activate (bool recursive)
		710	{
		711	if (has_active_speed ())
1042	}	712	{
1043	if(QUERY_FLAG(ob,FLAG_FRIENDLY)) {	713	/* If already on active list, don't do anything */
1044	LOG(llevMonster,"Warning: tried to free friendly object.\n");	714	if (active_next || active_prev || this == active_objects)
1045	remove_friendly_object(ob);
1046	}
1047	if(QUERY_FLAG(ob,FLAG_FREED)) {
1048	dump_object(ob);
1049	LOG(llevError,"Trying to free freed object.\n%s\n",errmsg);
1050	return;	715	return;
		716
		717	/* process_events() expects us to insert the object at the beginning
		718	* of the list. */
		719	active_next = active_objects;
		720
		721	if (active_next)
		722	active_next->active_prev = this;
		723
		724	active_objects = this;
		725	}
		726
		727	if (recursive)
		728	for (object *op = inv; op; op = op->above)
		729	op->activate (1);
		730	}
		731
		732	/* This function removes object 'op' from the list of active
		733	* objects.
		734	* This should only be used for style maps or other such
		735	* reference maps where you don't want an object that isn't
		736	* in play chewing up cpu time getting processed.
		737	* The reverse of this is to call update_ob_speed, which
		738	* will do the right thing based on the speed of the object.
		739	*/
		740	void
		741	object::deactivate (bool recursive)
		742	{
		743	/* If not on the active list, nothing needs to be done */
		744	if (!active_next && !active_prev && this != active_objects)
		745	return;
		746
		747	if (active_prev == 0)
1051	}	748	{
1052	if(ob->more!=NULL) {	749	active_objects = active_next;
1053	free_object2(ob->more, free_inventory);	750	if (active_next)
1054	ob->more=NULL;	751	active_next->active_prev = 0;
		752	}
		753	else
1055	}	754	{
1056	if (ob->inv) {	755	active_prev->active_next = active_next;
		756	if (active_next)
		757	active_next->active_prev = active_prev;
		758	}
		759
		760	active_next = 0;
		761	active_prev = 0;
		762
		763	if (recursive)
		764	for (object *op = inv; op; op = op->above)
		765	op->deactivate (1);
		766	}
		767
		768	/*
		769	* Remove and free all objects in the inventory of the given object.
		770	* object.c ?
		771	*/
		772	void
		773	object::destroy_inv (bool drop_to_ground)
		774	{
		775	// need to check first, because the checks below might segfault
		776	// as we might be on an invalid mapspace and crossfire code
		777	// is too buggy to ensure that the inventory is empty.
		778	// corollary: if you create arrows etc. with stuff in tis inventory,
		779	// cf will crash below with off-map x and y
		780	if (!inv)
		781	return;
		782
1057	/* Only if the space blocks everything do we not process -	783	/* Only if the space blocks everything do we not process -
1058	* if some form of movemnt is allowed, let objects	784	* if some form of movement is allowed, let objects
1059	* drop on that space.	785	* drop on that space.
1060	*/	786	*/
1061	if (free_inventory || ob->map==NULL || ob->map->in_memory!=MAP_IN_MEMORY ||	787	if (!drop_to_ground
1062	(GET_MAP_MOVE_BLOCK(ob->map, ob->x, ob->y) == MOVE_ALL))	788	|| !map
1063	{	789	|| map->in_memory != MAP_IN_MEMORY
1064	op=ob->inv;	790	|| ms ().move_block == MOVE_ALL)
1065	while(op!=NULL) {
1066	tmp=op->below;
1067	remove_ob(op);
1068	free_object2(op, free_inventory);
1069	op=tmp;
1070	}
1071	}
1072	else { /* Put objects in inventory onto this space */
1073	op=ob->inv;
1074	while(op!=NULL) {
1075	tmp=op->below;
1076	remove_ob(op);
1077	if(QUERY_FLAG(op,FLAG_STARTEQUIP)||QUERY_FLAG(op,FLAG_NO_DROP) ||
1078	op->type==RUNE || op->type==TRAP || QUERY_FLAG(op,FLAG_IS_A_TEMPLATE))
1079	free_object(op);
1080	else {
1081	op->x=ob->x;
1082	op->y=ob->y;
1083	insert_ob_in_map(op,ob->map,NULL,0); /* Insert in same map as the envir */
1084	}
1085	op=tmp;
1086	}
1087	}
1088	}
1089	/* Remove object from the active list */
1090	ob->speed = 0;
1091	update_ob_speed(ob);
1092
1093	SET_FLAG(ob, FLAG_FREED);
1094	ob->count = 0;
1095
1096	/* Remove this object from the list of used objects */
1097	if(ob->prev==NULL) {
1098	objects=ob->next;
1099	if(objects!=NULL)
1100	objects->prev=NULL;
1101	}
1102	else {
1103	ob->prev->next=ob->next;
1104	if(ob->next!=NULL)
1105	ob->next->prev=ob->prev;
1106	}
1107
1108	if(ob->name!=NULL) FREE_AND_CLEAR_STR(ob->name);
1109	if(ob->name_pl!=NULL) FREE_AND_CLEAR_STR(ob->name_pl);
1110	if(ob->title!=NULL) FREE_AND_CLEAR_STR(ob->title);
1111	if(ob->race!=NULL) FREE_AND_CLEAR_STR(ob->race);
1112	if(ob->slaying!=NULL) FREE_AND_CLEAR_STR(ob->slaying);
1113	if(ob->skill!=NULL) FREE_AND_CLEAR_STR(ob->skill);
1114	if(ob->lore!=NULL) FREE_AND_CLEAR_STR(ob->lore);
1115	if(ob->msg!=NULL) FREE_AND_CLEAR_STR(ob->msg);
1116	if(ob->materialname!=NULL) FREE_AND_CLEAR_STR(ob->materialname);
1117
1118		791	{
1119	/* Why aren't events freed? */	792	while (inv)
1120	free_key_values(ob);	793	{
		794	inv->destroy_inv (drop_to_ground);
		795	inv->destroy ();
		796	}
		797	}
		798	else
		799	{ /* Put objects in inventory onto this space */
		800	while (inv)
		801	{
		802	object *op = inv;
1121		803
1122	#if 0 /* MEMORY_DEBUG*/	804	if (op->flag [FLAG_STARTEQUIP]
1123	/* This is a nice idea. Unfortunately, a lot of the code in crossfire	805	|| op->flag [FLAG_NO_DROP]
1124	* presumes the freed_object will stick around for at least a little	806	|| op->type == RUNE
1125	* bit	807	|| op->type == TRAP
1126	*/	808	|| op->flag [FLAG_IS_A_TEMPLATE])
1127	/* this is necessary so that memory debugging programs will	809	op->destroy ();
1128	* be able to accurately report source of malloc. If we recycle	810	else
1129	* objects, then some other area may be doing the get_object	811	map->insert (op, x, y);
1130	* and not freeing it, but the original one that malloc'd the	812	}
1131	* object will get the blame.	813	}
1132	*/
1133	free(ob);
1134	#else
1135
1136	/* Now link it with the free_objects list: */
1137	ob->prev=NULL;
1138	ob->next=free_objects;
1139	if(free_objects!=NULL)
1140	free_objects->prev=ob;
1141	free_objects=ob;
1142	nroffreeobjects++;
1143	#endif
1144	}	814	}
1145		815
1146	/*	816	object *object::create ()
1147	* count_free() returns the number of objects on the list of free objects.	817	{
1148	*/
1149
1150	int count_free(void) {
1151	int i=0;
1152	object *tmp=free_objects;	818	object *op = new object;
1153	while(tmp!=NULL)	819	op->link ();
1154	tmp=tmp->next, i++;
1155	return i;	820	return op;
1156	}	821	}
1157		822
1158	/*	823	void
1159	* count_used() returns the number of objects on the list of used objects.	824	object::do_destroy ()
1160	*/	825	{
		826	if (flag [FLAG_IS_LINKED])
		827	remove_button_link (this);
1161		828
1162	int count_used(void) {	829	if (flag [FLAG_FRIENDLY])
1163	int i=0;	830	remove_friendly_object (this);
1164	object *tmp=objects;	831
1165	while(tmp!=NULL)	832	if (!flag [FLAG_REMOVED])
1166	tmp=tmp->next, i++;	833	remove ();
		834
		835	if (flag [FLAG_FREED])
1167	return i;	836	return;
1168	}
1169		837
1170	/*	838	set_speed (0);
1171	* count_active() returns the number of objects on the list of active objects.
1172	*/
1173		839
1174	int count_active(void) {	840	flag [FLAG_FREED] = 1;
1175	int i=0;	841
1176	object *tmp=active_objects;	842	attachable::do_destroy ();
1177	while(tmp!=NULL)	843
1178	tmp=tmp->active_next, i++;	844	destroy_inv (true);
		845	unlink ();
		846
		847	// hack to ensure that freed objects still have a valid map
		848	{
		849	static maptile *freed_map; // freed objects are moved here to avoid crashes
		850
		851	if (!freed_map)
		852	{
		853	freed_map = new maptile;
		854
		855	freed_map->name = "/internal/freed_objects_map";
		856	freed_map->width = 3;
		857	freed_map->height = 3;
		858
		859	freed_map->alloc ();
		860	}
		861
		862	map = freed_map;
		863	x = 1;
		864	y = 1;
		865	}
		866
		867	head = 0;
		868
		869	if (more)
		870	{
		871	more->destroy ();
		872	more = 0;
		873	}
		874
		875	// clear those pointers that likely might have circular references to us
		876	owner = 0;
		877	enemy = 0;
		878	attacked_by = 0;
		879
		880	// only relevant for players(?), but make sure of it anyways
		881	contr = 0;
		882	}
		883
		884	void
		885	object::destroy (bool destroy_inventory)
		886	{
		887	if (destroyed ())
1179	return i;	888	return;
		889
		890	if (destroy_inventory)
		891	destroy_inv (false);
		892
		893	attachable::destroy ();
1180	}	894	}
1181		895
1182	/*	896	/*
1183	* sub_weight() recursively (outwards) subtracts a number from the	897	* sub_weight() recursively (outwards) subtracts a number from the
1184	* weight of an object (and what is carried by it's environment(s)).	898	* weight of an object (and what is carried by it's environment(s)).
1185	*/	899	*/
1186		900	void
1187	void sub_weight (object *op, signed long weight) {	901	sub_weight (object *op, signed long weight)
		902	{
1188	while (op != NULL) {	903	while (op != NULL)
		904	{
1189	if (op->type == CONTAINER) {	905	if (op->type == CONTAINER)
1190	weight=(signed long)(weight*(100-op->stats.Str)/100);	906	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1191	}	907
1192	op->carrying-=weight;	908	op->carrying -= weight;
1193	op = op->env;	909	op = op->env;
1194	}	910	}
1195	}	911	}
1196		912
1197	/* remove_ob(op):	913	/* op->remove ():
1198	* This function removes the object op from the linked list of objects	914	* This function removes the object op from the linked list of objects
1199	* which it is currently tied to. When this function is done, the	915	* which it is currently tied to. When this function is done, the
1200	* object will have no environment. If the object previously had an	916	* object will have no environment. If the object previously had an
1201	* environment, the x and y coordinates will be updated to	917	* environment, the x and y coordinates will be updated to
1202	* the previous environment.	918	* the previous environment.
1203	* Beware: This function is called from the editor as well!	919	* Beware: This function is called from the editor as well!
1204	*/	920	*/
1205		921	void
1206	void remove_ob(object *op) {	922	object::remove ()
		923	{
1207	object *tmp,*last=NULL;	924	object *tmp, *last = 0;
1208	object *otmp;	925	object *otmp;
1209	tag_t tag;
1210	int check_walk_off;
1211	mapstruct *m;
1212	sint16 x,y;
1213
1214		926
1215	if(QUERY_FLAG(op,FLAG_REMOVED)) {	927	if (QUERY_FLAG (this, FLAG_REMOVED))
1216	dump_object(op);	928	return;
1217	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1218		929
1219	/* Changed it to always dump core in this case. As has been learned
1220	* in the past, trying to recover from errors almost always
1221	* make things worse, and this is a real error here - something
1222	* that should not happen.
1223	* Yes, if this was a mission critical app, trying to do something
1224	* to recover may make sense, but that is because failure of the app
1225	* may have other disastrous problems. Cf runs out of a script
1226	* so is easily enough restarted without any real problems.
1227	* MSW 2001-07-01
1228	*/
1229	abort();
1230	}
1231	if(op->more!=NULL)
1232	remove_ob(op->more);
1233
1234	SET_FLAG(op, FLAG_REMOVED);	930	SET_FLAG (this, FLAG_REMOVED);
		931	INVOKE_OBJECT (REMOVE, this);
1235		932
		933	if (more)
		934	more->remove ();
		935
1236	/*	936	/*
1237	* In this case, the object to be removed is in someones	937	* In this case, the object to be removed is in someones
1238	* inventory.	938	* inventory.
1239	*/	939	*/
1240	if(op->env!=NULL) {	940	if (env)
		941	{
1241	if(op->nrof)	942	if (nrof)
1242	sub_weight(op->env, op->weight*op->nrof);	943	sub_weight (env, weight * nrof);
1243	else	944	else
1244	sub_weight(op->env, op->weight+op->carrying);	945	sub_weight (env, weight + carrying);
1245		946
1246	/* NO_FIX_PLAYER is set when a great many changes are being	947	/* NO_FIX_PLAYER is set when a great many changes are being
1247	* made to players inventory. If set, avoiding the call	948	* made to players inventory. If set, avoiding the call
1248	* to save cpu time.	949	* to save cpu time.
1249	*/	950	*/
1250	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	951	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1251	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	952	otmp->update_stats ();
1252	fix_player(otmp);
1253		953
1254	if(op->above!=NULL)	954	if (above)
1255	op->above->below=op->below;	955	above->below = below;
1256	else	956	else
1257	op->env->inv=op->below;	957	env->inv = below;
1258		958
1259	if(op->below!=NULL)	959	if (below)
1260	op->below->above=op->above;	960	below->above = above;
1261		961
1262	/* we set up values so that it could be inserted into	962	/* we set up values so that it could be inserted into
1263	* the map, but we don't actually do that - it is up	963	* the map, but we don't actually do that - it is up
1264	* to the caller to decide what we want to do.	964	* to the caller to decide what we want to do.
		965	*/
		966	x = env->x, y = env->y;
		967	map = env->map;
		968	above = 0, below = 0;
		969	env = 0;
		970	}
		971	else if (map)
		972	{
		973	if (type == PLAYER)
		974	{
		975	--map->players;
		976	map->last_access = runtime;
		977	}
		978
		979
		980	/* link the object above us */
		981	if (above)
		982	above->below = below;
		983	else
		984	map->at (x, y).top = below; /* we were top, set new top */
		985
		986	/* Relink the object below us, if there is one */
		987	if (below)
		988	below->above = above;
		989	else
		990	{
		991	/* Nothing below, which means we need to relink map object for this space
		992	* use translated coordinates in case some oddness with map tiling is
		993	* evident
1265	*/	994	*/
1266	op->x=op->env->x,op->y=op->env->y;	995	if (GET_MAP_OB (map, x, y) != this)
1267	op->ox=op->x,op->oy=op->y;	996	{
1268	op->map=op->env->map;	997	char *dump = dump_object (this);
1269	op->above=NULL,op->below=NULL;	998	LOG (llevError,
1270	op->env=NULL;	999	"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);
		1000	free (dump);
		1001	dump = dump_object (GET_MAP_OB (map, x, y));
		1002	LOG (llevError, "%s\n", dump);
		1003	free (dump);
		1004	}
		1005
		1006	map->at (x, y).bot = above; /* goes on above it. */
		1007	}
		1008
		1009	above = 0;
		1010	below = 0;
		1011
		1012	if (map->in_memory == MAP_SAVING)
1271	return;	1013	return;
1272	}
1273		1014
1274	/* If we get here, we are removing it from a map */	1015	int check_walk_off = !flag [FLAG_NO_APPLY];
1275	if (op->map == NULL) return;
1276		1016
1277	x = op->x;	1017	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1278	y = op->y;
1279	m = get_map_from_coord(op->map, &x, &y);
1280
1281	if (!m) {
1282	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1283	op->map->path, op->x, op->y);
1284	/* in old days, we used to set x and y to 0 and continue.
1285	* it seems if we get into this case, something is probablye
1286	* screwed up and should be fixed.
1287	*/
1288	abort();
1289	}
1290	if (op->map != m) {
1291	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1292	op->map->path, m->path, op->x, op->y, x, y);
1293	}
1294
1295	/* Re did the following section of code - it looks like it had
1296	* lots of logic for things we no longer care about
1297	*/
1298
1299	/* link the object above us */
1300	if (op->above)
1301	op->above->below=op->below;
1302	else
1303	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1304
1305	/* Relink the object below us, if there is one */
1306	if(op->below) {
1307	op->below->above=op->above;
1308	} else {
1309	/* Nothing below, which means we need to relink map object for this space
1310	* use translated coordinates in case some oddness with map tiling is
1311	* evident
1312	*/
1313	if(GET_MAP_OB(m,x,y)!=op) {
1314	dump_object(op);
1315	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", errmsg);
1316	dump_object(GET_MAP_OB(m,x,y));
1317	LOG(llevError,"%s\n",errmsg);
1318	}	1018	{
1319	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1320	}
1321	op->above=NULL;
1322	op->below=NULL;
1323
1324	if (op->map->in_memory == MAP_SAVING)
1325	return;
1326
1327	tag = op->count;
1328	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1329	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1330	/* No point updating the players look faces if he is the object	1019	/* No point updating the players look faces if he is the object
1331	* being removed.	1020	* being removed.
1332	*/	1021	*/
1333		1022
1334	if(tmp->type==PLAYER && tmp!=op) {	1023	if (tmp->type == PLAYER && tmp != this)
		1024	{
1335	/* If a container that the player is currently using somehow gets	1025	/* If a container that the player is currently using somehow gets
1336	* removed (most likely destroyed), update the player view	1026	* removed (most likely destroyed), update the player view
1337	* appropriately.	1027	* appropriately.
1338	*/	1028	*/
1339	if (tmp->container==op) {	1029	if (tmp->container == this)
1340	CLEAR_FLAG(op, FLAG_APPLIED);	1030	{
		1031	flag [FLAG_APPLIED] = 0;
1341	tmp->container=NULL;	1032	tmp->container = 0;
		1033	}
		1034
		1035	if (tmp->contr->ns)
		1036	tmp->contr->ns->floorbox_update ();
1342	}	1037	}
1343	tmp->contr->socket.update_look=1;	1038
1344	}
1345	/* See if player moving off should effect something */	1039	/* See if object moving off should effect something */
1346	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1040	if (check_walk_off
		1041	&& ((move_type & tmp->move_off)
1347	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1042	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1348		1043	{
1349	move_apply(tmp, op, NULL);	1044	move_apply (tmp, this, 0);
		1045
1350	if (was_destroyed (op, tag)) {	1046	if (destroyed ())
1351	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1047	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1352	"leaving object\n", tmp->name, tmp->arch->name);
1353	}	1048	}
1354	}
1355		1049
1356	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1050	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1357		1051	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1358	if(tmp->above == tmp)	1052	if (tmp->above == tmp)
1359	tmp->above = NULL;	1053	tmp->above = 0;
		1054
1360	last=tmp;	1055	last = tmp;
1361	}	1056	}
		1057
1362	/* last == NULL of there are no objects on this space */	1058	/* last == NULL if there are no objects on this space */
1363	if (last==NULL) {	1059	//TODO: this makes little sense, why only update the topmost object?
1364	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1060	if (!last)
1365	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1061	map->at (x, y).flags_ = P_NEED_UPDATE;
1366	* those out anyways, and if there are any flags set right now, they won't
1367	* be correct anyways.
1368	*/
1369	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1370	update_position(op->map, op->x, op->y);
1371	}
1372	else	1062	else
1373	update_object(last, UP_OBJ_REMOVE);	1063	update_object (last, UP_OBJ_REMOVE);
1374		1064
1375	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1065	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1376	update_all_los(op->map, op->x, op->y);	1066	update_all_los (map, x, y);
1377		1067	}
1378	}	1068	}
1379		1069
1380	/*	1070	/*
1381	* merge_ob(op,top):	1071	* merge_ob(op,top):
1382	*	1072	*
1383	* This function goes through all objects below and including top, and	1073	* This function goes through all objects below and including top, and
1384	* merges op to the first matching object.	1074	* merges op to the first matching object.
1385	* If top is NULL, it is calculated.	1075	* If top is NULL, it is calculated.
1386	* Returns pointer to object if it succeded in the merge, otherwise NULL	1076	* Returns pointer to object if it succeded in the merge, otherwise NULL
1387	*/	1077	*/
1388		1078	object *
1389	object *merge_ob(object *op, object *top) {	1079	merge_ob (object *op, object *top)
		1080	{
1390	if(!op->nrof)	1081	if (!op->nrof)
1391	return 0;	1082	return 0;
1392	if(top==NULL)	1083
		1084	if (top)
1393	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1085	for (top = op; top && top->above; top = top->above)
		1086	;
		1087
1394	for(;top!=NULL;top=top->below) {	1088	for (; top; top = top->below)
		1089	{
1395	if(top==op)	1090	if (top == op)
1396	continue;	1091	continue;
1397	if (CAN_MERGE(op,top))	1092
1398	{	1093	if (object::can_merge (op, top))
		1094	{
1399	top->nrof+=op->nrof;	1095	top->nrof += op->nrof;
		1096
1400	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1097	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1401	op->weight = 0; /* Don't want any adjustements now */	1098	op->weight = 0; /* Don't want any adjustements now */
1402	remove_ob(op);	1099	op->destroy ();
1403	free_object(op);
1404	return top;	1100	return top;
1405	}	1101	}
1406	}	1102	}
		1103
1407	return NULL;	1104	return 0;
1408	}	1105	}
1409		1106
1410	/*	1107	/*
1411	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1108	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1412	* job preparing multi-part monsters	1109	* job preparing multi-part monsters
1413	*/	1110	*/
		1111	object *
1414	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1112	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1415	object* tmp;	1113	{
1416	if (op->head)	1114	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1417	op=op->head;	1115	{
1418	for (tmp=op;tmp;tmp=tmp->more){
1419	tmp->x=x+tmp->arch->clone.x;	1116	tmp->x = x + tmp->arch->clone.x;
1420	tmp->y=y+tmp->arch->clone.y;	1117	tmp->y = y + tmp->arch->clone.y;
1421	}	1118	}
		1119
1422	return insert_ob_in_map (op, m, originator, flag);	1120	return insert_ob_in_map (op, m, originator, flag);
1423	}	1121	}
1424		1122
1425	/*	1123	/*
1426	* insert_ob_in_map (op, map, originator, flag):	1124	* insert_ob_in_map (op, map, originator, flag):
1427	* This function inserts the object in the two-way linked list	1125	* This function inserts the object in the two-way linked list
…		…
1440	* Return value:	1138	* Return value:
1441	* new object if 'op' was merged with other object	1139	* new object if 'op' was merged with other object
1442	* NULL if 'op' was destroyed	1140	* NULL if 'op' was destroyed
1443	* just 'op' otherwise	1141	* just 'op' otherwise
1444	*/	1142	*/
1445		1143	object *
1446	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1144	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1447	{	1145	{
1448	object *tmp, *top, *floor=NULL;	1146	object *tmp, *top, *floor = NULL;
1449	sint16 x,y;	1147	sint16 x, y;
1450		1148
1451	if (QUERY_FLAG (op, FLAG_FREED)) {	1149	if (QUERY_FLAG (op, FLAG_FREED))
		1150	{
1452	LOG (llevError, "Trying to insert freed object!\n");	1151	LOG (llevError, "Trying to insert freed object!\n");
1453	return NULL;	1152	return NULL;
		1153	}
		1154
		1155	if (!m)
1454	}	1156	{
1455	if(m==NULL) {
1456	dump_object(op);	1157	char *dump = dump_object (op);
1457	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1158	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1159	free (dump);
1458	return op;	1160	return op;
1459	}	1161	}
		1162
1460	if(out_of_map(m,op->x,op->y)) {	1163	if (out_of_map (m, op->x, op->y))
		1164	{
1461	dump_object(op);	1165	char *dump = dump_object (op);
1462	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1166	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1463	#ifdef MANY_CORES	1167	#ifdef MANY_CORES
1464	/* Better to catch this here, as otherwise the next use of this object	1168	/* Better to catch this here, as otherwise the next use of this object
1465	* is likely to cause a crash. Better to find out where it is getting	1169	* is likely to cause a crash. Better to find out where it is getting
1466	* improperly inserted.	1170	* improperly inserted.
1467	*/	1171	*/
1468	abort();	1172	abort ();
1469	#endif	1173	#endif
		1174	free (dump);
1470	return op;	1175	return op;
1471	}	1176	}
		1177
1472	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1178	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1179	{
1473	dump_object(op);	1180	char *dump = dump_object (op);
1474	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1181	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1182	free (dump);
1475	return op;	1183	return op;
		1184	}
		1185
		1186	if (op->more)
1476	}	1187	{
1477	if(op->more!=NULL) {
1478	/* The part may be on a different map. */	1188	/* The part may be on a different map. */
1479		1189
1480	object *more = op->more;	1190	object *more = op->more;
1481		1191
1482	/* We really need the caller to normalize coordinates - if	1192	/* We really need the caller to normalize coordinates - if
1483	* we set the map, that doesn't work if the location is within	1193	* we set the map, that doesn't work if the location is within
1484	* a map and this is straddling an edge. So only if coordinate	1194	* a map and this is straddling an edge. So only if coordinate
1485	* is clear wrong do we normalize it.	1195	* is clear wrong do we normalize it.
1486	*/	1196	*/
1487	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1197	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1488	/* Debugging information so you can see the last coordinates this object had */
1489	more->ox = more->x;
1490	more->oy = more->y;
1491	more->map = get_map_from_coord(m, &more->x, &more->y);	1198	more->map = get_map_from_coord (m, &more->x, &more->y);
1492	} else if (!more->map) {	1199	else if (!more->map)
		1200	{
1493	/* For backwards compatibility - when not dealing with tiled maps,	1201	/* For backwards compatibility - when not dealing with tiled maps,
1494	* more->map should always point to the parent.	1202	* more->map should always point to the parent.
1495	*/	1203	*/
1496	more->map = m;	1204	more->map = m;
1497	}	1205	}
1498		1206
1499	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1207	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1208	{
1500	if ( ! op->head)	1209	if (!op->head)
1501	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1210	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1211
1502	return NULL;	1212	return 0;
1503	}	1213	}
1504	}	1214	}
		1215
1505	CLEAR_FLAG(op,FLAG_REMOVED);	1216	CLEAR_FLAG (op, FLAG_REMOVED);
1506		1217
1507	/* Debugging information so you can see the last coordinates this object had */
1508	op->ox=op->x;
1509	op->oy=op->y;
1510
1511	/* Ideally, the caller figures this out. However, it complicates a lot	1218	/* Ideally, the caller figures this out. However, it complicates a lot
1512	* of areas of callers (eg, anything that uses find_free_spot would now	1219	* of areas of callers (eg, anything that uses find_free_spot would now
1513	* need extra work	1220	* need extra work
1514	*/	1221	*/
1515	op->map=get_map_from_coord(m, &op->x, &op->y);	1222	op->map = get_map_from_coord (m, &op->x, &op->y);
1516	x = op->x;	1223	x = op->x;
1517	y = op->y;	1224	y = op->y;
1518		1225
1519	/* this has to be done after we translate the coordinates.	1226	/* this has to be done after we translate the coordinates.
1520	*/	1227	*/
1521	if(op->nrof && !(flag & INS_NO_MERGE)) {	1228	if (op->nrof && !(flag & INS_NO_MERGE))
1522	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1229	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1523	if (CAN_MERGE(op,tmp)) {	1230	if (object::can_merge (op, tmp))
		1231	{
1524	op->nrof+=tmp->nrof;	1232	op->nrof += tmp->nrof;
1525	remove_ob(tmp);	1233	tmp->destroy ();
1526	free_object(tmp);	1234	}
		1235
		1236	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1237	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1238
		1239	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1240	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1241
		1242	if (flag & INS_BELOW_ORIGINATOR)
		1243	{
		1244	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1245	{
		1246	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1247	abort ();
		1248	}
		1249
		1250	op->above = originator;
		1251	op->below = originator->below;
		1252
		1253	if (op->below)
		1254	op->below->above = op;
		1255	else
		1256	op->ms ().bot = op;
		1257
		1258	/* since *below* originator, no need to update top */
		1259	originator->below = op;
		1260	}
		1261	else
		1262	{
		1263	/* If there are other objects, then */
		1264	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1265	{
		1266	object *last = 0;
		1267
		1268	/*
		1269	* If there are multiple objects on this space, we do some trickier handling.
		1270	* We've already dealt with merging if appropriate.
		1271	* Generally, we want to put the new object on top. But if
		1272	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1273	* floor, we want to insert above that and no further.
		1274	* Also, if there are spell objects on this space, we stop processing
		1275	* once we get to them. This reduces the need to traverse over all of
		1276	* them when adding another one - this saves quite a bit of cpu time
		1277	* when lots of spells are cast in one area. Currently, it is presumed
		1278	* that flying non pickable objects are spell objects.
		1279	*/
		1280	while (top)
		1281	{
		1282	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1283	floor = top;
		1284
		1285	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1286	{
		1287	/* We insert above top, so we want this object below this */
		1288	top = top->below;
		1289	break;
		1290	}
		1291
		1292	last = top;
		1293	top = top->above;
1527	}	1294	}
1528	}
1529		1295
1530	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1296	/* Don't want top to be NULL, so set it to the last valid object */
1531	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1297	top = last;
1532	if (!QUERY_FLAG(op, FLAG_ALIVE))
1533	CLEAR_FLAG(op, FLAG_NO_STEAL);
1534		1298
1535	if (flag & INS_BELOW_ORIGINATOR) {	1299	/* We let update_position deal with figuring out what the space
1536	if (originator->map != op->map || originator->x != op->x ||	1300	* looks like instead of lots of conditions here.
1537	originator->y != op->y) {	1301	* makes things faster, and effectively the same result.
1538	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1539	abort();
1540	}
1541	op->above = originator;
1542	op->below = originator->below;
1543	if (op->below) op->below->above = op;
1544	else SET_MAP_OB(op->map, op->x, op->y, op);
1545	/* since *below* originator, no need to update top */
1546	originator->below = op;
1547	} else {
1548	/* If there are other objects, then */
1549	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1550	object *last=NULL;
1551	/*	1302	*/
1552	* If there are multiple objects on this space, we do some trickier handling.	1303
1553	* We've already dealt with merging if appropriate.	1304	/* Have object 'fall below' other objects that block view.
1554	* Generally, we want to put the new object on top. But if	1305	* Unless those objects are exits, type 66
1555	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1306	* If INS_ON_TOP is used, don't do this processing
1556	* floor, we want to insert above that and no further.	1307	* Need to find the object that in fact blocks view, otherwise
1557	* Also, if there are spell objects on this space, we stop processing	1308	* stacking is a bit odd.
1558	* once we get to them. This reduces the need to traverse over all of	1309	*/
1559	* them when adding another one - this saves quite a bit of cpu time	1310	if (!(flag & INS_ON_TOP) &&
1560	* when lots of spells are cast in one area. Currently, it is presumed	1311	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1561	* that flying non pickable objects are spell objects.	1312	{
		1313	for (last = top; last != floor; last = last->below)
		1314	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1315	break;
		1316	/* Check to see if we found the object that blocks view,
		1317	* and make sure we have a below pointer for it so that
		1318	* we can get inserted below this one, which requires we
		1319	* set top to the object below us.
1562	*/	1320	*/
1563		1321	if (last && last->below && last != floor)
1564	while (top != NULL) {
1565	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1566	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1567	if (QUERY_FLAG(top, FLAG_NO_PICK)
1568	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1569	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1570	{
1571	/* We insert above top, so we want this object below this */
1572	top=top->below;
1573	break;
1574	}
1575	last = top;
1576	top = top->above;	1322	top = last->below;
1577	}	1323	}
1578	/* Don't want top to be NULL, so set it to the last valid object */
1579	top = last;
1580
1581	/* We let update_position deal with figuring out what the space
1582	* looks like instead of lots of conditions here.
1583	* makes things faster, and effectively the same result.
1584	*/
1585
1586	/* Have object 'fall below' other objects that block view.
1587	* Unless those objects are exits, type 66
1588	* If INS_ON_TOP is used, don't do this processing
1589	* Need to find the object that in fact blocks view, otherwise
1590	* stacking is a bit odd.
1591	*/
1592	if (!(flag & INS_ON_TOP) &&
1593	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1594	(op->face && !op->face->visibility)) {
1595	for (last=top; last != floor; last=last->below)
1596	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1597	/* Check to see if we found the object that blocks view,
1598	* and make sure we have a below pointer for it so that
1599	* we can get inserted below this one, which requires we
1600	* set top to the object below us.
1601	*/
1602	if (last && last->below && last != floor) top=last->below;
1603	}
1604	} /* If objects on this space */	1324	} /* If objects on this space */
		1325
1605	if (flag & INS_MAP_LOAD)	1326	if (flag & INS_MAP_LOAD)
1606	top = GET_MAP_TOP(op->map,op->x,op->y);	1327	top = GET_MAP_TOP (op->map, op->x, op->y);
		1328
1607	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1329	if (flag & INS_ABOVE_FLOOR_ONLY)
		1330	top = floor;
1608		1331
1609	/* Top is the object that our object (op) is going to get inserted above.	1332	/* Top is the object that our object (op) is going to get inserted above.
1610	*/	1333	*/
1611		1334
1612	/* First object on this space */	1335	/* First object on this space */
1613	if (!top) {	1336	if (!top)
		1337	{
1614	op->above = GET_MAP_OB(op->map, op->x, op->y);	1338	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1339
		1340	if (op->above)
1615	if (op->above) op->above->below = op;	1341	op->above->below = op;
		1342
1616	op->below = NULL;	1343	op->below = 0;
1617	SET_MAP_OB(op->map, op->x, op->y, op);	1344	op->ms ().bot = op;
		1345	}
		1346	else
1618	} else { /* get inserted into the stack above top */	1347	{ /* get inserted into the stack above top */
1619	op->above = top->above;	1348	op->above = top->above;
		1349
		1350	if (op->above)
1620	if (op->above) op->above->below = op;	1351	op->above->below = op;
		1352
1621	op->below = top;	1353	op->below = top;
1622	top->above = op;	1354	top->above = op;
1623	}	1355	}
		1356
1624	if (op->above==NULL)	1357	if (!op->above)
1625	SET_MAP_TOP(op->map,op->x, op->y, op);	1358	op->ms ().top = op;
1626	} /* else not INS_BELOW_ORIGINATOR */	1359	} /* else not INS_BELOW_ORIGINATOR */
1627		1360
1628	if(op->type==PLAYER)	1361	if (op->type == PLAYER)
		1362	{
1629	op->contr->do_los=1;	1363	op->contr->do_los = 1;
		1364	++op->map->players;
		1365	op->map->last_access = runtime;
		1366	}
1630		1367
1631	/* If we have a floor, we know the player, if any, will be above	1368	/* If we have a floor, we know the player, if any, will be above
1632	* it, so save a few ticks and start from there.	1369	* it, so save a few ticks and start from there.
1633	*/	1370	*/
1634	if (!(flag & INS_MAP_LOAD))	1371	if (!(flag & INS_MAP_LOAD))
1635	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1372	if (object *pl = op->ms ().player ())
1636	if (tmp->type == PLAYER)	1373	if (pl->contr->ns)
1637	tmp->contr->socket.update_look=1;	1374	pl->contr->ns->floorbox_update ();
1638	}
1639		1375
1640	/* If this object glows, it may affect lighting conditions that are	1376	/* If this object glows, it may affect lighting conditions that are
1641	* visible to others on this map. But update_all_los is really	1377	* visible to others on this map. But update_all_los is really
1642	* an inefficient way to do this, as it means los for all players	1378	* an inefficient way to do this, as it means los for all players
1643	* on the map will get recalculated. The players could very well	1379	* on the map will get recalculated. The players could very well
1644	* be far away from this change and not affected in any way -	1380	* be far away from this change and not affected in any way -
1645	* this should get redone to only look for players within range,	1381	* this should get redone to only look for players within range,
1646	* or just updating the P_NEED_UPDATE for spaces within this area	1382	* or just updating the P_NEED_UPDATE for spaces within this area
1647	* of effect may be sufficient.	1383	* of effect may be sufficient.
1648	*/	1384	*/
1649	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1385	if (op->map->darkness && (op->glow_radius != 0))
1650	update_all_los(op->map, op->x, op->y);	1386	update_all_los (op->map, op->x, op->y);
1651		1387
1652
1653	/* updates flags (blocked, alive, no magic, etc) for this map space */	1388	/* updates flags (blocked, alive, no magic, etc) for this map space */
1654	update_object(op,UP_OBJ_INSERT);	1389	update_object (op, UP_OBJ_INSERT);
1655		1390
		1391	INVOKE_OBJECT (INSERT, op);
1656		1392
1657	/* Don't know if moving this to the end will break anything. However,	1393	/* Don't know if moving this to the end will break anything. However,
1658	* we want to have update_look set above before calling this.	1394	* we want to have floorbox_update called before calling this.
1659	*	1395	*
1660	* check_move_on() must be after this because code called from	1396	* check_move_on() must be after this because code called from
1661	* check_move_on() depends on correct map flags (so functions like	1397	* check_move_on() depends on correct map flags (so functions like
1662	* blocked() and wall() work properly), and these flags are updated by	1398	* blocked() and wall() work properly), and these flags are updated by
1663	* update_object().	1399	* update_object().
1664	*/	1400	*/
1665		1401
1666	/* if this is not the head or flag has been passed, don't check walk on status */	1402	/* if this is not the head or flag has been passed, don't check walk on status */
1667
1668	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1403	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1404	{
1669	if (check_move_on(op, originator))	1405	if (check_move_on (op, originator))
1670	return NULL;	1406	return 0;
1671		1407
1672	/* If we are a multi part object, lets work our way through the check	1408	/* If we are a multi part object, lets work our way through the check
1673	* walk on's.	1409	* walk on's.
1674	*/	1410	*/
1675	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1411	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1676	if (check_move_on (tmp, originator))	1412	if (check_move_on (tmp, originator))
1677	return NULL;	1413	return 0;
1678	}	1414	}
		1415
1679	return op;	1416	return op;
1680	}	1417	}
1681		1418
1682	/* this function inserts an object in the map, but if it	1419	/* this function inserts an object in the map, but if it
1683	* finds an object of its own type, it'll remove that one first.	1420	* finds an object of its own type, it'll remove that one first.
1684	* op is the object to insert it under: supplies x and the map.	1421	* op is the object to insert it under: supplies x and the map.
1685	*/	1422	*/
		1423	void
1686	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1424	replace_insert_ob_in_map (const char *arch_string, object *op)
1687	object *tmp;	1425	{
1688	object *tmp1;	1426	object *tmp, *tmp1;
1689		1427
1690	/* first search for itself and remove any old instances */	1428	/* first search for itself and remove any old instances */
1691		1429
1692	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1430	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1693	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1431	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1694	remove_ob(tmp);	1432	tmp->destroy ();
1695	free_object(tmp);
1696	}
1697	}
1698		1433
1699	tmp1=arch_to_object(find_archetype(arch_string));	1434	tmp1 = arch_to_object (archetype::find (arch_string));
1700		1435
1701		1436	tmp1->x = op->x;
1702	tmp1->x = op->x; tmp1->y = op->y;	1437	tmp1->y = op->y;
1703	insert_ob_in_map(tmp1,op->map,op,0);	1438	insert_ob_in_map (tmp1, op->map, op, 0);
1704	}	1439	}
		1440
		1441	object *
		1442	object::insert_at (object *where, object *originator, int flags)
		1443	{
		1444	where->map->insert (this, where->x, where->y, originator, flags);
		1445	}
1705		1446
1706	/*	1447	/*
1707	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1448	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1708	* is returned contains nr objects, and the remaining parts contains	1449	* is returned contains nr objects, and the remaining parts contains
1709	* the rest (or is removed and freed if that number is 0).	1450	* the rest (or is removed and freed if that number is 0).
1710	* On failure, NULL is returned, and the reason put into the	1451	* On failure, NULL is returned, and the reason put into the
1711	* global static errmsg array.	1452	* global static errmsg array.
1712	*/	1453	*/
1713		1454	object *
1714	object *get_split_ob(object *orig_ob, uint32 nr) {	1455	get_split_ob (object *orig_ob, uint32 nr)
		1456	{
1715	object *newob;	1457	object *newob;
1716	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1458	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1717		1459
1718	if(orig_ob->nrof<nr) {	1460	if (orig_ob->nrof < nr)
1719	sprintf(errmsg,"There are only %d %ss.",	1461	{
1720	orig_ob->nrof?orig_ob->nrof:1, orig_ob->name);	1462	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1721	return NULL;	1463	return NULL;
1722	}	1464	}
		1465
1723	newob = object_create_clone(orig_ob);	1466	newob = object_create_clone (orig_ob);
		1467
1724	if((orig_ob->nrof-=nr)<1) {	1468	if ((orig_ob->nrof -= nr) < 1)
1725	if ( ! is_removed)	1469	orig_ob->destroy (1);
1726	remove_ob(orig_ob);
1727	free_object2(orig_ob, 1);
1728	}
1729	else if ( ! is_removed) {	1470	else if (!is_removed)
		1471	{
1730	if(orig_ob->env!=NULL)	1472	if (orig_ob->env != NULL)
1731	sub_weight (orig_ob->env,orig_ob->weight*nr);	1473	sub_weight (orig_ob->env, orig_ob->weight * nr);
1732	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1474	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1475	{
1733	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1476	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1734	LOG(llevDebug,
1735	"Error, Tried to split object whose map is not in memory.\n");	1477	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1736	return NULL;	1478	return NULL;
1737	}	1479	}
1738	}	1480	}
		1481
1739	newob->nrof=nr;	1482	newob->nrof = nr;
1740		1483
1741	return newob;	1484	return newob;
1742	}	1485	}
1743		1486
1744	/*	1487	/*
1745	* decrease_ob_nr(object, number) decreases a specified number from	1488	* decrease_ob_nr(object, number) decreases a specified number from
1746	* the amount of an object. If the amount reaches 0, the object	1489	* the amount of an object. If the amount reaches 0, the object
1747	* is subsequently removed and freed.	1490	* is subsequently removed and freed.
1748	*	1491	*
1749	* Return value: 'op' if something is left, NULL if the amount reached 0	1492	* Return value: 'op' if something is left, NULL if the amount reached 0
1750	*/	1493	*/
1751		1494
		1495	object *
1752	object *decrease_ob_nr (object *op, uint32 i)	1496	decrease_ob_nr (object *op, uint32 i)
1753	{	1497	{
1754	object *tmp;	1498	object *tmp;
1755	player *pl;
1756		1499
1757	if (i == 0) /* objects with op->nrof require this check */	1500	if (i == 0) /* objects with op->nrof require this check */
1758	return op;	1501	return op;
1759		1502
1760	if (i > op->nrof)	1503	if (i > op->nrof)
1761	i = op->nrof;	1504	i = op->nrof;
1762		1505
1763	if (QUERY_FLAG (op, FLAG_REMOVED))	1506	if (QUERY_FLAG (op, FLAG_REMOVED))
		1507	op->nrof -= i;
		1508	else if (op->env)
		1509	{
		1510	/* is this object in the players inventory, or sub container
		1511	* therein?
		1512	*/
		1513	tmp = op->in_player ();
		1514	/* nope. Is this a container the player has opened?
		1515	* If so, set tmp to that player.
		1516	* IMO, searching through all the players will mostly
		1517	* likely be quicker than following op->env to the map,
		1518	* and then searching the map for a player.
		1519	*/
		1520	if (!tmp)
		1521	for_all_players (pl)
		1522	if (pl->ob->container == op->env)
		1523	{
		1524	tmp = pl->ob;
		1525	break;
		1526	}
		1527
		1528	if (i < op->nrof)
		1529	{
		1530	sub_weight (op->env, op->weight * i);
		1531	op->nrof -= i;
		1532	if (tmp)
		1533	esrv_send_item (tmp, op);
		1534	}
		1535	else
		1536	{
		1537	op->remove ();
		1538	op->nrof = 0;
		1539	if (tmp)
		1540	esrv_del_item (tmp->contr, op->count);
		1541	}
1764	{	1542	}
		1543	else
		1544	{
		1545	object *above = op->above;
		1546
		1547	if (i < op->nrof)
1765	op->nrof -= i;	1548	op->nrof -= i;
1766	}	1549	else
1767	else if (op->env != NULL)
1768	{
1769	/* is this object in the players inventory, or sub container
1770	* therein?
1771	*/
1772	tmp = is_player_inv (op->env);
1773	/* nope. Is this a container the player has opened?
1774	* If so, set tmp to that player.
1775	* IMO, searching through all the players will mostly
1776	* likely be quicker than following op->env to the map,
1777	* and then searching the map for a player.
1778	*/
1779	if (!tmp) {
1780	for (pl=first_player; pl; pl=pl->next)
1781	if (pl->ob->container == op->env) break;
1782	if (pl) tmp=pl->ob;
1783	else tmp=NULL;
1784	}	1550	{
1785
1786	if (i < op->nrof) {
1787	sub_weight (op->env, op->weight * i);
1788	op->nrof -= i;
1789	if (tmp) {
1790	esrv_send_item(tmp, op);
1791	}
1792	} else {
1793	remove_ob (op);	1551	op->remove ();
1794	op->nrof = 0;	1552	op->nrof = 0;
1795	if (tmp) {
1796	esrv_del_item(tmp->contr, op->count);
1797	}	1553	}
1798	}
1799	}
1800	else
1801	{
1802	object *above = op->above;
1803		1554
1804	if (i < op->nrof) {
1805	op->nrof -= i;
1806	} else {
1807	remove_ob (op);
1808	op->nrof = 0;
1809	}
1810	/* Since we just removed op, op->above is null */	1555	/* Since we just removed op, op->above is null */
1811	for (tmp = above; tmp != NULL; tmp = tmp->above)	1556	for (tmp = above; tmp; tmp = tmp->above)
1812	if (tmp->type == PLAYER) {	1557	if (tmp->type == PLAYER)
		1558	{
1813	if (op->nrof)	1559	if (op->nrof)
1814	esrv_send_item(tmp, op);	1560	esrv_send_item (tmp, op);
1815	else	1561	else
1816	esrv_del_item(tmp->contr, op->count);	1562	esrv_del_item (tmp->contr, op->count);
1817	}	1563	}
1818	}	1564	}
1819		1565
1820	if (op->nrof) {	1566	if (op->nrof)
1821	return op;	1567	return op;
1822	} else {	1568	else
1823	free_object (op);	1569	{
		1570	op->destroy ();
1824	return NULL;	1571	return 0;
1825	}	1572	}
1826	}	1573	}
1827		1574
1828	/*	1575	/*
1829	* add_weight(object, weight) adds the specified weight to an object,	1576	* add_weight(object, weight) adds the specified weight to an object,
1830	* and also updates how much the environment(s) is/are carrying.	1577	* and also updates how much the environment(s) is/are carrying.
1831	*/	1578	*/
1832		1579
		1580	void
1833	void add_weight (object *op, signed long weight) {	1581	add_weight (object *op, signed long weight)
		1582	{
1834	while (op!=NULL) {	1583	while (op != NULL)
		1584	{
1835	if (op->type == CONTAINER) {	1585	if (op->type == CONTAINER)
1836	weight=(signed long)(weight*(100-op->stats.Str)/100);	1586	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1837	}	1587
1838	op->carrying+=weight;	1588	op->carrying += weight;
1839	op=op->env;	1589	op = op->env;
1840	}	1590	}
1841	}	1591	}
1842		1592
		1593	object *
		1594	insert_ob_in_ob (object *op, object *where)
		1595	{
		1596	if (!where)
		1597	{
		1598	char *dump = dump_object (op);
		1599	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1600	free (dump);
		1601	return op;
		1602	}
		1603
		1604	if (where->head)
		1605	{
		1606	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1607	where = where->head;
		1608	}
		1609
		1610	return where->insert (op);
		1611	}
		1612
1843	/*	1613	/*
1844	* insert_ob_in_ob(op,environment):	1614	* env->insert (op)
1845	* This function inserts the object op in the linked list	1615	* This function inserts the object op in the linked list
1846	* inside the object environment.	1616	* inside the object environment.
1847	*	1617	*
1848	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1849	* the inventory at the last position or next to other objects of the same
1850	* type.
1851	* Frank: Now sorted by type, archetype and magic!
1852	*
1853	* The function returns now pointer to inserted item, and return value can	1618	* The function returns now pointer to inserted item, and return value can
1854	* be != op, if items are merged. -Tero	1619	* be != op, if items are merged. -Tero
1855	*/	1620	*/
1856		1621
1857	object *insert_ob_in_ob(object *op,object *where) {	1622	object *
		1623	object::insert (object *op)
		1624	{
1858	object *tmp, *otmp;	1625	object *tmp, *otmp;
1859		1626
1860	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1627	if (!QUERY_FLAG (op, FLAG_REMOVED))
1861	dump_object(op);	1628	op->remove ();
1862	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1629
1863	return op;
1864	}
1865	if(where==NULL) {
1866	dump_object(op);
1867	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1868	return op;
1869	}
1870	if (where->head) {
1871	LOG(llevDebug,
1872	"Warning: Tried to insert object wrong part of multipart object.\n");
1873	where = where->head;
1874	}
1875	if (op->more) {	1630	if (op->more)
		1631	{
1876	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1632	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1877	op->name, op->count);
1878	return op;	1633	return op;
1879	}	1634	}
		1635
1880	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1636	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1881	CLEAR_FLAG(op, FLAG_REMOVED);	1637	CLEAR_FLAG (op, FLAG_REMOVED);
1882	if(op->nrof) {	1638	if (op->nrof)
		1639	{
1883	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1640	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1884	if ( CAN_MERGE(tmp,op) ) {	1641	if (object::can_merge (tmp, op))
		1642	{
1885	/* return the original object and remove inserted object	1643	/* return the original object and remove inserted object
1886	(client needs the original object) */	1644	(client needs the original object) */
1887	tmp->nrof += op->nrof;	1645	tmp->nrof += op->nrof;
1888	/* Weight handling gets pretty funky. Since we are adding to	1646	/* Weight handling gets pretty funky. Since we are adding to
1889	* tmp->nrof, we need to increase the weight.	1647	* tmp->nrof, we need to increase the weight.
1890	*/	1648	*/
1891	add_weight (where, op->weight*op->nrof);	1649	add_weight (this, op->weight * op->nrof);
1892	SET_FLAG(op, FLAG_REMOVED);	1650	SET_FLAG (op, FLAG_REMOVED);
1893	free_object(op); /* free the inserted object */	1651	op->destroy (); /* free the inserted object */
1894	op = tmp;	1652	op = tmp;
1895	remove_ob (op); /* and fix old object's links */	1653	op->remove (); /* and fix old object's links */
1896	CLEAR_FLAG(op, FLAG_REMOVED);	1654	CLEAR_FLAG (op, FLAG_REMOVED);
1897	break;	1655	break;
1898	}	1656	}
1899		1657
1900	/* I assume combined objects have no inventory	1658	/* I assume combined objects have no inventory
1901	* We add the weight - this object could have just been removed	1659	* We add the weight - this object could have just been removed
1902	* (if it was possible to merge). calling remove_ob will subtract	1660	* (if it was possible to merge). calling remove_ob will subtract
1903	* the weight, so we need to add it in again, since we actually do	1661	* the weight, so we need to add it in again, since we actually do
1904	* the linking below	1662	* the linking below
1905	*/	1663	*/
1906	add_weight (where, op->weight*op->nrof);	1664	add_weight (this, op->weight * op->nrof);
		1665	}
1907	} else	1666	else
1908	add_weight (where, (op->weight+op->carrying));	1667	add_weight (this, (op->weight + op->carrying));
1909		1668
1910	otmp=is_player_inv(where);	1669	otmp = this->in_player ();
1911	if (otmp&&otmp->contr!=NULL) {	1670	if (otmp && otmp->contr)
1912	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1671	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1913	fix_player(otmp);	1672	otmp->update_stats ();
1914	}
1915		1673
1916	op->map=NULL;	1674	op->map = 0;
1917	op->env=where;	1675	op->env = this;
1918	op->above=NULL;	1676	op->above = 0;
1919	op->below=NULL;	1677	op->below = 0;
1920	op->x=0,op->y=0;	1678	op->x = 0, op->y = 0;
1921	op->ox=0,op->oy=0;
1922		1679
1923	/* reset the light list and los of the players on the map */	1680	/* reset the light list and los of the players on the map */
1924	if((op->glow_radius!=0)&&where->map)	1681	if ((op->glow_radius != 0) && map)
1925	{	1682	{
1926	#ifdef DEBUG_LIGHTS	1683	#ifdef DEBUG_LIGHTS
1927	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1684	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1928	op->name);
1929	#endif /* DEBUG_LIGHTS */	1685	#endif /* DEBUG_LIGHTS */
1930	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1686	if (map->darkness)
		1687	update_all_los (map, x, y);
1931	}	1688	}
1932		1689
1933	/* Client has no idea of ordering so lets not bother ordering it here.	1690	/* Client has no idea of ordering so lets not bother ordering it here.
1934	* It sure simplifies this function...	1691	* It sure simplifies this function...
1935	*/	1692	*/
1936	if (where->inv==NULL)	1693	if (!inv)
1937	where->inv=op;	1694	inv = op;
1938	else {	1695	else
		1696	{
1939	op->below = where->inv;	1697	op->below = inv;
1940	op->below->above = op;	1698	op->below->above = op;
1941	where->inv = op;	1699	inv = op;
1942	}	1700	}
		1701
		1702	INVOKE_OBJECT (INSERT, this);
		1703
1943	return op;	1704	return op;
1944	}	1705	}
1945		1706
1946	/*	1707	/*
1947	* Checks if any objects has a move_type that matches objects	1708	* Checks if any objects has a move_type that matches objects
…		…
1961	*	1722	*
1962	* MSW 2001-07-08: Check all objects on space, not just those below	1723	* MSW 2001-07-08: Check all objects on space, not just those below
1963	* object being inserted. insert_ob_in_map may not put new objects	1724	* object being inserted. insert_ob_in_map may not put new objects
1964	* on top.	1725	* on top.
1965	*/	1726	*/
1966		1727	int
1967	int check_move_on (object *op, object *originator)	1728	check_move_on (object *op, object *originator)
1968	{	1729	{
1969	object *tmp;	1730	object *tmp;
1970	tag_t tag;
1971	mapstruct *m=op->map;	1731	maptile *m = op->map;
1972	int x=op->x, y=op->y;	1732	int x = op->x, y = op->y;
		1733
1973	MoveType move_on, move_slow, move_block;	1734	MoveType move_on, move_slow, move_block;
1974		1735
1975	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1736	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1976	return 0;	1737	return 0;
1977		1738
1978	tag = op->count;
1979
1980	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1739	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1981	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1740	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1982	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1741	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1983		1742
1984	/* if nothing on this space will slow op down or be applied,	1743	/* if nothing on this space will slow op down or be applied,
1985	* no need to do checking below. have to make sure move_type	1744	* no need to do checking below. have to make sure move_type
1986	* is set, as lots of objects don't have it set - we treat that	1745	* is set, as lots of objects don't have it set - we treat that
1987	* as walking.	1746	* as walking.
1988	*/	1747	*/
1989	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1748	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1990	return 0;	1749	return 0;
1991		1750
1992	/* This is basically inverse logic of that below - basically,	1751	/* This is basically inverse logic of that below - basically,
1993	* if the object can avoid the move on or slow move, they do so,	1752	* if the object can avoid the move on or slow move, they do so,
1994	* but can't do it if the alternate movement they are using is	1753	* but can't do it if the alternate movement they are using is
1995	* blocked. Logic on this seems confusing, but does seem correct.	1754	* blocked. Logic on this seems confusing, but does seem correct.
1996	*/	1755	*/
1997	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1756	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1998	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1757	return 0;
1999		1758
2000	/* The objects have to be checked from top to bottom.	1759	/* The objects have to be checked from top to bottom.
2001	* Hence, we first go to the top:	1760	* Hence, we first go to the top:
2002	*/	1761	*/
2003		1762
2004	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1763	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
2005	tmp->above!=NULL; tmp=tmp->above) {	1764	{
2006	/* Trim the search when we find the first other spell effect	1765	/* Trim the search when we find the first other spell effect
2007	* this helps performance so that if a space has 50 spell objects,	1766	* this helps performance so that if a space has 50 spell objects,
2008	* we don't need to check all of them.	1767	* we don't need to check all of them.
2009	*/	1768	*/
2010	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1769	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1770	break;
		1771	}
		1772
		1773	for (; tmp; tmp = tmp->below)
2011	}	1774	{
2012	for(;tmp!=NULL; tmp=tmp->below) {	1775	if (tmp == op)
2013	if (tmp == op) continue; /* Can't apply yourself */	1776	continue; /* Can't apply yourself */
2014		1777
2015	/* Check to see if one of the movement types should be slowed down.	1778	/* Check to see if one of the movement types should be slowed down.
2016	* Second check makes sure that the movement types not being slowed	1779	* Second check makes sure that the movement types not being slowed
2017	* (~slow_move) is not blocked on this space - just because the	1780	* (~slow_move) is not blocked on this space - just because the
2018	* space doesn't slow down swimming (for example), if you can't actually	1781	* space doesn't slow down swimming (for example), if you can't actually
2019	* swim on that space, can't use it to avoid the penalty.	1782	* swim on that space, can't use it to avoid the penalty.
2020	*/	1783	*/
2021	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1784	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1785	{
2022	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1786	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2023	((op->move_type & tmp->move_slow) &&
2024	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1787	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1788	{
2025		1789
2026	float diff;	1790	float
2027
2028	diff = tmp->move_slow_penalty*FABS(op->speed);	1791	diff = tmp->move_slow_penalty * FABS (op->speed);
		1792
2029	if (op->type == PLAYER) {	1793	if (op->type == PLAYER)
2030	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1794	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2031	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1795	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2032	diff /= 4.0;	1796	diff /= 4.0;
2033	}	1797
2034	}
2035	op->speed_left -= diff;	1798	op->speed_left -= diff;
2036	}	1799	}
2037	}	1800	}
2038		1801
2039	/* Basically same logic as above, except now for actual apply. */	1802	/* Basically same logic as above, except now for actual apply. */
2040	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1803	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2041	((op->move_type & tmp->move_on) &&
2042	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1804	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2043		1805	{
2044	move_apply(tmp, op, originator);	1806	move_apply (tmp, op, originator);
		1807
2045	if (was_destroyed (op, tag))	1808	if (op->destroyed ())
2046	return 1;	1809	return 1;
2047		1810
2048	/* what the person/creature stepped onto has moved the object	1811	/* what the person/creature stepped onto has moved the object
2049	* someplace new. Don't process any further - if we did,	1812	* someplace new. Don't process any further - if we did,
2050	* have a feeling strange problems would result.	1813	* have a feeling strange problems would result.
2051	*/	1814	*/
2052	if (op->map != m || op->x != x || op->y != y) return 0;	1815	if (op->map != m || op->x != x || op->y != y)
		1816	return 0;
2053	}	1817	}
2054	}	1818	}
		1819
2055	return 0;	1820	return 0;
2056	}	1821	}
2057		1822
2058	/*	1823	/*
2059	* present_arch(arch, map, x, y) searches for any objects with	1824	* present_arch(arch, map, x, y) searches for any objects with
2060	* a matching archetype at the given map and coordinates.	1825	* a matching archetype at the given map and coordinates.
2061	* The first matching object is returned, or NULL if none.	1826	* The first matching object is returned, or NULL if none.
2062	*/	1827	*/
2063		1828	object *
2064	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1829	present_arch (const archetype *at, maptile *m, int x, int y)
2065	object *tmp;	1830	{
2066	if(m==NULL || out_of_map(m,x,y)) {	1831	if (m == NULL || out_of_map (m, x, y))
		1832	{
2067	LOG(llevError,"Present_arch called outside map.\n");	1833	LOG (llevError, "Present_arch called outside map.\n");
2068	return NULL;	1834	return NULL;
2069	}	1835	}
		1836
2070	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1837	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2071	if(tmp->arch == at)	1838	if (tmp->arch == at)
2072	return tmp;	1839	return tmp;
		1840
2073	return NULL;	1841	return NULL;
2074	}	1842	}
2075		1843
2076	/*	1844	/*
2077	* present(type, map, x, y) searches for any objects with	1845	* present(type, map, x, y) searches for any objects with
2078	* a matching type variable at the given map and coordinates.	1846	* a matching type variable at the given map and coordinates.
2079	* The first matching object is returned, or NULL if none.	1847	* The first matching object is returned, or NULL if none.
2080	*/	1848	*/
2081		1849	object *
2082	object *present(unsigned char type,mapstruct *m, int x,int y) {	1850	present (unsigned char type, maptile *m, int x, int y)
2083	object *tmp;	1851	{
2084	if(out_of_map(m,x,y)) {	1852	if (out_of_map (m, x, y))
		1853	{
2085	LOG(llevError,"Present called outside map.\n");	1854	LOG (llevError, "Present called outside map.\n");
2086	return NULL;	1855	return NULL;
2087	}	1856	}
		1857
2088	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1858	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
2089	if(tmp->type==type)	1859	if (tmp->type == type)
2090	return tmp;	1860	return tmp;
		1861
2091	return NULL;	1862	return NULL;
2092	}	1863	}
2093		1864
2094	/*	1865	/*
2095	* present_in_ob(type, object) searches for any objects with	1866	* present_in_ob(type, object) searches for any objects with
2096	* a matching type variable in the inventory of the given object.	1867	* a matching type variable in the inventory of the given object.
2097	* The first matching object is returned, or NULL if none.	1868	* The first matching object is returned, or NULL if none.
2098	*/	1869	*/
2099		1870	object *
2100	object *present_in_ob(unsigned char type, const object *op) {	1871	present_in_ob (unsigned char type, const object *op)
2101	object *tmp;	1872	{
2102	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1873	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2103	if(tmp->type==type)	1874	if (tmp->type == type)
2104	return tmp;	1875	return tmp;
		1876
2105	return NULL;	1877	return NULL;
2106	}	1878	}
2107		1879
2108	/*	1880	/*
2109	* present_in_ob (type, str, object) searches for any objects with	1881	* present_in_ob (type, str, object) searches for any objects with
…		…
2117	* str is the string to match against. Note that we match against	1889	* str is the string to match against. Note that we match against
2118	* the object name, not the archetype name. this is so that the	1890	* the object name, not the archetype name. this is so that the
2119	* spell code can use one object type (force), but change it's name	1891	* spell code can use one object type (force), but change it's name
2120	* to be unique.	1892	* to be unique.
2121	*/	1893	*/
2122		1894	object *
2123	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1895	present_in_ob_by_name (int type, const char *str, const object *op)
2124	object *tmp;	1896	{
2125
2126	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1897	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2127	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1898	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2128	return tmp;	1899	return tmp;
2129	}	1900
2130	return NULL;	1901	return 0;
2131	}	1902	}
2132		1903
2133	/*	1904	/*
2134	* present_arch_in_ob(archetype, object) searches for any objects with	1905	* present_arch_in_ob(archetype, object) searches for any objects with
2135	* a matching archetype in the inventory of the given object.	1906	* a matching archetype in the inventory of the given object.
2136	* The first matching object is returned, or NULL if none.	1907	* The first matching object is returned, or NULL if none.
2137	*/	1908	*/
2138		1909	object *
2139	object *present_arch_in_ob(const archetype *at, const object *op) {	1910	present_arch_in_ob (const archetype *at, const object *op)
2140	object *tmp;	1911	{
2141	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1912	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2142	if( tmp->arch == at)	1913	if (tmp->arch == at)
2143	return tmp;	1914	return tmp;
		1915
2144	return NULL;	1916	return NULL;
2145	}	1917	}
2146		1918
2147	/*	1919	/*
2148	* activate recursively a flag on an object inventory	1920	* activate recursively a flag on an object inventory
2149	*/	1921	*/
		1922	void
2150	void flag_inv(object*op, int flag){	1923	flag_inv (object *op, int flag)
2151	object *tmp;	1924	{
2152	if(op->inv)	1925	if (op->inv)
2153	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1926	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1927	{
2154	SET_FLAG(tmp, flag);	1928	SET_FLAG (tmp, flag);
2155	flag_inv(tmp,flag);	1929	flag_inv (tmp, flag);
2156	}	1930	}
		1931	}
		1932
2157	}/*	1933	/*
2158	* desactivate recursively a flag on an object inventory	1934	* deactivate recursively a flag on an object inventory
2159	*/	1935	*/
		1936	void
2160	void unflag_inv(object*op, int flag){	1937	unflag_inv (object *op, int flag)
2161	object *tmp;	1938	{
2162	if(op->inv)	1939	if (op->inv)
2163	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1940	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1941	{
2164	CLEAR_FLAG(tmp, flag);	1942	CLEAR_FLAG (tmp, flag);
2165	unflag_inv(tmp,flag);	1943	unflag_inv (tmp, flag);
2166	}	1944	}
2167	}	1945	}
2168		1946
2169	/*	1947	/*
2170	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1948	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2171	* all it's inventory (recursively).	1949	* all it's inventory (recursively).
2172	* If checksums are used, a player will get set_cheat called for	1950	* If checksums are used, a player will get set_cheat called for
2173	* him/her-self and all object carried by a call to this function.	1951	* him/her-self and all object carried by a call to this function.
2174	*/	1952	*/
2175		1953	void
2176	void set_cheat(object *op) {	1954	set_cheat (object *op)
		1955	{
2177	SET_FLAG(op, FLAG_WAS_WIZ);	1956	SET_FLAG (op, FLAG_WAS_WIZ);
2178	flag_inv(op, FLAG_WAS_WIZ);	1957	flag_inv (op, FLAG_WAS_WIZ);
2179	}	1958	}
2180		1959
2181	/*	1960	/*
2182	* find_free_spot(object, map, x, y, start, stop) will search for	1961	* find_free_spot(object, map, x, y, start, stop) will search for
2183	* a spot at the given map and coordinates which will be able to contain	1962	* a spot at the given map and coordinates which will be able to contain
…		…
2197	* because arch_blocked (now ob_blocked) needs to know the movement type	1976	* because arch_blocked (now ob_blocked) needs to know the movement type
2198	* to know if the space in question will block the object. We can't use	1977	* to know if the space in question will block the object. We can't use
2199	* the archetype because that isn't correct if the monster has been	1978	* the archetype because that isn't correct if the monster has been
2200	* customized, changed states, etc.	1979	* customized, changed states, etc.
2201	*/	1980	*/
2202		1981	int
2203	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1982	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1983	{
2204	int i,index=0, flag;	1984	int index = 0, flag;
2205	static int altern[SIZEOFFREE];	1985	int altern[SIZEOFFREE];
2206		1986
2207	for(i=start;i<stop;i++) {	1987	for (int i = start; i < stop; i++)
		1988	{
2208	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1989	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2209	if(!flag)	1990	if (!flag)
2210	altern[index++]=i;	1991	altern [index++] = i;
2211		1992
2212	/* Basically, if we find a wall on a space, we cut down the search size.	1993	/* Basically, if we find a wall on a space, we cut down the search size.
2213	* In this way, we won't return spaces that are on another side of a wall.	1994	* In this way, we won't return spaces that are on another side of a wall.
2214	* This mostly work, but it cuts down the search size in all directions -	1995	* This mostly work, but it cuts down the search size in all directions -
2215	* if the space being examined only has a wall to the north and empty	1996	* if the space being examined only has a wall to the north and empty
2216	* spaces in all the other directions, this will reduce the search space	1997	* spaces in all the other directions, this will reduce the search space
2217	* to only the spaces immediately surrounding the target area, and	1998	* to only the spaces immediately surrounding the target area, and
2218	* won't look 2 spaces south of the target space.	1999	* won't look 2 spaces south of the target space.
2219	*/	2000	*/
2220	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2001	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2221	stop=maxfree[i];	2002	stop = maxfree[i];
2222	}	2003	}
2223	if(!index) return -1;	2004
		2005	if (!index)
		2006	return -1;
		2007
2224	return altern[RANDOM()%index];	2008	return altern[RANDOM () % index];
2225	}	2009	}
2226		2010
2227	/*	2011	/*
2228	* find_first_free_spot(archetype, mapstruct, x, y) works like	2012	* find_first_free_spot(archetype, maptile, x, y) works like
2229	* find_free_spot(), but it will search max number of squares.	2013	* find_free_spot(), but it will search max number of squares.
2230	* But it will return the first available spot, not a random choice.	2014	* But it will return the first available spot, not a random choice.
2231	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2015	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2232	*/	2016	*/
2233		2017	int
2234	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2018	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2235	int i;	2019	{
2236	for(i=0;i<SIZEOFFREE;i++) {	2020	for (int i = 0; i < SIZEOFFREE; i++)
2237	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2021	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2238	return i;	2022	return i;
2239	}	2023
2240	return -1;	2024	return -1;
2241	}	2025	}
2242		2026
2243	/*	2027	/*
2244	* The function permute(arr, begin, end) randomly reorders the array	2028	* The function permute(arr, begin, end) randomly reorders the array
2245	* arr[begin..end-1].	2029	* arr[begin..end-1].
		2030	* now uses a fisher-yates shuffle, old permute was broken
2246	*/	2031	*/
		2032	static void
2247	static void permute(int *arr, int begin, int end)	2033	permute (int *arr, int begin, int end)
2248	{	2034	{
2249	int i, j, tmp, len;	2035	arr += begin;
		2036	end -= begin;
2250		2037
2251	len = end-begin;	2038	while (--end)
2252	for(i = begin; i < end; i++)	2039	swap (arr [end], arr [RANDOM () % (end + 1)]);
2253	{
2254	j = begin+RANDOM()%len;
2255
2256	tmp = arr[i];
2257	arr[i] = arr[j];
2258	arr[j] = tmp;
2259	}
2260	}	2040	}
2261		2041
2262	/* new function to make monster searching more efficient, and effective!	2042	/* new function to make monster searching more efficient, and effective!
2263	* This basically returns a randomized array (in the passed pointer) of	2043	* This basically returns a randomized array (in the passed pointer) of
2264	* the spaces to find monsters. In this way, it won't always look for	2044	* the spaces to find monsters. In this way, it won't always look for
2265	* monsters to the north first. However, the size of the array passed	2045	* monsters to the north first. However, the size of the array passed
2266	* covers all the spaces, so within that size, all the spaces within	2046	* covers all the spaces, so within that size, all the spaces within
2267	* the 3x3 area will be searched, just not in a predictable order.	2047	* the 3x3 area will be searched, just not in a predictable order.
2268	*/	2048	*/
		2049	void
2269	void get_search_arr(int *search_arr)	2050	get_search_arr (int *search_arr)
2270	{	2051	{
2271	int i;	2052	int i;
2272		2053
2273	for(i = 0; i < SIZEOFFREE; i++)	2054	for (i = 0; i < SIZEOFFREE; i++)
2274	{
2275	search_arr[i] = i;	2055	search_arr[i] = i;
2276	}
2277		2056
2278	permute(search_arr, 1, SIZEOFFREE1+1);	2057	permute (search_arr, 1, SIZEOFFREE1 + 1);
2279	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2058	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2280	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2059	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2281	}	2060	}
2282		2061
2283	/*	2062	/*
2284	* find_dir(map, x, y, exclude) will search some close squares in the	2063	* find_dir(map, x, y, exclude) will search some close squares in the
2285	* given map at the given coordinates for live objects.	2064	* given map at the given coordinates for live objects.
…		…
2290	* Perhaps incorrectly, but I'm making the assumption that exclude	2069	* Perhaps incorrectly, but I'm making the assumption that exclude
2291	* is actually want is going to try and move there. We need this info	2070	* is actually want is going to try and move there. We need this info
2292	* because we have to know what movement the thing looking to move	2071	* because we have to know what movement the thing looking to move
2293	* there is capable of.	2072	* there is capable of.
2294	*/	2073	*/
2295		2074	int
2296	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2075	find_dir (maptile *m, int x, int y, object *exclude)
		2076	{
2297	int i,max=SIZEOFFREE, mflags;	2077	int i, max = SIZEOFFREE, mflags;
		2078
2298	sint16 nx, ny;	2079	sint16 nx, ny;
2299	object *tmp;	2080	object *tmp;
2300	mapstruct *mp;	2081	maptile *mp;
		2082
2301	MoveType blocked, move_type;	2083	MoveType blocked, move_type;
2302		2084
2303	if (exclude && exclude->head) {	2085	if (exclude && exclude->head)
		2086	{
2304	exclude = exclude->head;	2087	exclude = exclude->head;
2305	move_type = exclude->move_type;	2088	move_type = exclude->move_type;
2306	} else {	2089	}
		2090	else
		2091	{
2307	/* If we don't have anything, presume it can use all movement types. */	2092	/* If we don't have anything, presume it can use all movement types. */
2308	move_type=MOVE_ALL;	2093	move_type = MOVE_ALL;
		2094	}
		2095
		2096	for (i = 1; i < max; i++)
2309	}	2097	{
2310
2311	for(i=1;i<max;i++) {
2312	mp = m;	2098	mp = m;
2313	nx = x + freearr_x[i];	2099	nx = x + freearr_x[i];
2314	ny = y + freearr_y[i];	2100	ny = y + freearr_y[i];
2315		2101
2316	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2102	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2103
2317	if (mflags & P_OUT_OF_MAP) {	2104	if (mflags & P_OUT_OF_MAP)
		2105	max = maxfree[i];
		2106	else
		2107	{
		2108	mapspace &ms = mp->at (nx, ny);
		2109
		2110	blocked = ms.move_block;
		2111
		2112	if ((move_type & blocked) == move_type)
2318	max = maxfree[i];	2113	max = maxfree[i];
2319	} else {
2320	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2321
2322	if ((move_type & blocked) == move_type) {
2323	max=maxfree[i];
2324	} else if (mflags & P_IS_ALIVE) {	2114	else if (mflags & P_IS_ALIVE)
2325	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2115	{
		2116	for (tmp = ms.bot; tmp; tmp = tmp->above)
2326	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2117	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2327	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2118	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2328	break;	2119	break;
2329	}	2120
2330	}
2331	if(tmp) {	2121	if (tmp)
2332	return freedir[i];	2122	return freedir[i];
2333	}
2334	}	2123	}
2335	}	2124	}
2336	}	2125	}
		2126
2337	return 0;	2127	return 0;
2338	}	2128	}
2339		2129
2340	/*	2130	/*
2341	* distance(object 1, object 2) will return the square of the	2131	* distance(object 1, object 2) will return the square of the
2342	* distance between the two given objects.	2132	* distance between the two given objects.
2343	*/	2133	*/
2344		2134	int
2345	int distance(const object *ob1, const object *ob2) {	2135	distance (const object *ob1, const object *ob2)
2346	int i;	2136	{
2347	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2137	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2348	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2349	return i;
2350	}	2138	}
2351		2139
2352	/*	2140	/*
2353	* find_dir_2(delta-x,delta-y) will return a direction in which	2141	* find_dir_2(delta-x,delta-y) will return a direction in which
2354	* an object which has subtracted the x and y coordinates of another	2142	* an object which has subtracted the x and y coordinates of another
2355	* object, needs to travel toward it.	2143	* object, needs to travel toward it.
2356	*/	2144	*/
2357		2145	int
2358	int find_dir_2(int x, int y) {	2146	find_dir_2 (int x, int y)
		2147	{
2359	int q;	2148	int q;
2360		2149
2361	if(y)	2150	if (y)
2362	q=x*100/y;	2151	q = x * 100 / y;
2363	else if (x)	2152	else if (x)
2364	q= -300*x;	2153	q = -300 * x;
2365	else	2154	else
2366	return 0;	2155	return 0;
2367		2156
2368	if(y>0) {	2157	if (y > 0)
		2158	{
2369	if(q < -242)	2159	if (q < -242)
2370	return 3 ;	2160	return 3;
2371	if (q < -41)	2161	if (q < -41)
2372	return 2 ;	2162	return 2;
2373	if (q < 41)	2163	if (q < 41)
2374	return 1 ;	2164	return 1;
2375	if (q < 242)	2165	if (q < 242)
2376	return 8 ;	2166	return 8;
2377	return 7 ;	2167	return 7;
2378	}	2168	}
2379		2169
2380	if (q < -242)	2170	if (q < -242)
2381	return 7 ;	2171	return 7;
2382	if (q < -41)	2172	if (q < -41)
2383	return 6 ;	2173	return 6;
2384	if (q < 41)	2174	if (q < 41)
2385	return 5 ;	2175	return 5;
2386	if (q < 242)	2176	if (q < 242)
2387	return 4 ;	2177	return 4;
2388		2178
2389	return 3 ;	2179	return 3;
2390	}	2180	}
2391		2181
2392	/*	2182	/*
2393	* absdir(int): Returns a number between 1 and 8, which represent	2183	* absdir(int): Returns a number between 1 and 8, which represent
2394	* the "absolute" direction of a number (it actually takes care of	2184	* the "absolute" direction of a number (it actually takes care of
2395	* "overflow" in previous calculations of a direction).	2185	* "overflow" in previous calculations of a direction).
2396	*/	2186	*/
2397		2187
		2188	int
2398	int absdir(int d) {	2189	absdir (int d)
2399	while(d<1) d+=8;	2190	{
2400	while(d>8) d-=8;	2191	while (d < 1)
		2192	d += 8;
		2193
		2194	while (d > 8)
		2195	d -= 8;
		2196
2401	return d;	2197	return d;
2402	}	2198	}
2403		2199
2404	/*	2200	/*
2405	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2201	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2406	* between two directions (which are expected to be absolute (see absdir())	2202	* between two directions (which are expected to be absolute (see absdir())
2407	*/	2203	*/
2408		2204
		2205	int
2409	int dirdiff(int dir1, int dir2) {	2206	dirdiff (int dir1, int dir2)
		2207	{
2410	int d;	2208	int d;
		2209
2411	d = abs(dir1 - dir2);	2210	d = abs (dir1 - dir2);
2412	if(d>4)	2211	if (d > 4)
2413	d = 8 - d;	2212	d = 8 - d;
		2213
2414	return d;	2214	return d;
2415	}	2215	}
2416		2216
2417	/* peterm:	2217	/* peterm:
2418	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2218	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2421	* This basically means that if direction is 15, then it could either go	2221	* This basically means that if direction is 15, then it could either go
2422	* direction 4, 14, or 16 to get back to where we are.	2222	* direction 4, 14, or 16 to get back to where we are.
2423	* Moved from spell_util.c to object.c with the other related direction	2223	* Moved from spell_util.c to object.c with the other related direction
2424	* functions.	2224	* functions.
2425	*/	2225	*/
2426
2427	int reduction_dir[SIZEOFFREE][3] = {	2226	int reduction_dir[SIZEOFFREE][3] = {
2428	{0,0,0}, /* 0 */	2227	{0, 0, 0}, /* 0 */
2429	{0,0,0}, /* 1 */	2228	{0, 0, 0}, /* 1 */
2430	{0,0,0}, /* 2 */	2229	{0, 0, 0}, /* 2 */
2431	{0,0,0}, /* 3 */	2230	{0, 0, 0}, /* 3 */
2432	{0,0,0}, /* 4 */	2231	{0, 0, 0}, /* 4 */
2433	{0,0,0}, /* 5 */	2232	{0, 0, 0}, /* 5 */
2434	{0,0,0}, /* 6 */	2233	{0, 0, 0}, /* 6 */
2435	{0,0,0}, /* 7 */	2234	{0, 0, 0}, /* 7 */
2436	{0,0,0}, /* 8 */	2235	{0, 0, 0}, /* 8 */
2437	{8,1,2}, /* 9 */	2236	{8, 1, 2}, /* 9 */
2438	{1,2,-1}, /* 10 */	2237	{1, 2, -1}, /* 10 */
2439	{2,10,12}, /* 11 */	2238	{2, 10, 12}, /* 11 */
2440	{2,3,-1}, /* 12 */	2239	{2, 3, -1}, /* 12 */
2441	{2,3,4}, /* 13 */	2240	{2, 3, 4}, /* 13 */
2442	{3,4,-1}, /* 14 */	2241	{3, 4, -1}, /* 14 */
2443	{4,14,16}, /* 15 */	2242	{4, 14, 16}, /* 15 */
2444	{5,4,-1}, /* 16 */	2243	{5, 4, -1}, /* 16 */
2445	{4,5,6}, /* 17 */	2244	{4, 5, 6}, /* 17 */
2446	{6,5,-1}, /* 18 */	2245	{6, 5, -1}, /* 18 */
2447	{6,20,18}, /* 19 */	2246	{6, 20, 18}, /* 19 */
2448	{7,6,-1}, /* 20 */	2247	{7, 6, -1}, /* 20 */
2449	{6,7,8}, /* 21 */	2248	{6, 7, 8}, /* 21 */
2450	{7,8,-1}, /* 22 */	2249	{7, 8, -1}, /* 22 */
2451	{8,22,24}, /* 23 */	2250	{8, 22, 24}, /* 23 */
2452	{8,1,-1}, /* 24 */	2251	{8, 1, -1}, /* 24 */
2453	{24,9,10}, /* 25 */	2252	{24, 9, 10}, /* 25 */
2454	{9,10,-1}, /* 26 */	2253	{9, 10, -1}, /* 26 */
2455	{10,11,-1}, /* 27 */	2254	{10, 11, -1}, /* 27 */
2456	{27,11,29}, /* 28 */	2255	{27, 11, 29}, /* 28 */
2457	{11,12,-1}, /* 29 */	2256	{11, 12, -1}, /* 29 */
2458	{12,13,-1}, /* 30 */	2257	{12, 13, -1}, /* 30 */
2459	{12,13,14}, /* 31 */	2258	{12, 13, 14}, /* 31 */
2460	{13,14,-1}, /* 32 */	2259	{13, 14, -1}, /* 32 */
2461	{14,15,-1}, /* 33 */	2260	{14, 15, -1}, /* 33 */
2462	{33,15,35}, /* 34 */	2261	{33, 15, 35}, /* 34 */
2463	{16,15,-1}, /* 35 */	2262	{16, 15, -1}, /* 35 */
2464	{17,16,-1}, /* 36 */	2263	{17, 16, -1}, /* 36 */
2465	{18,17,16}, /* 37 */	2264	{18, 17, 16}, /* 37 */
2466	{18,17,-1}, /* 38 */	2265	{18, 17, -1}, /* 38 */
2467	{18,19,-1}, /* 39 */	2266	{18, 19, -1}, /* 39 */
2468	{41,19,39}, /* 40 */	2267	{41, 19, 39}, /* 40 */
2469	{19,20,-1}, /* 41 */	2268	{19, 20, -1}, /* 41 */
2470	{20,21,-1}, /* 42 */	2269	{20, 21, -1}, /* 42 */
2471	{20,21,22}, /* 43 */	2270	{20, 21, 22}, /* 43 */
2472	{21,22,-1}, /* 44 */	2271	{21, 22, -1}, /* 44 */
2473	{23,22,-1}, /* 45 */	2272	{23, 22, -1}, /* 45 */
2474	{45,47,23}, /* 46 */	2273	{45, 47, 23}, /* 46 */
2475	{23,24,-1}, /* 47 */	2274	{23, 24, -1}, /* 47 */
2476	{24,9,-1}}; /* 48 */	2275	{24, 9, -1}
		2276	}; /* 48 */
2477		2277
2478	/* Recursive routine to step back and see if we can	2278	/* Recursive routine to step back and see if we can
2479	* find a path to that monster that we found. If not,	2279	* find a path to that monster that we found. If not,
2480	* we don't bother going toward it. Returns 1 if we	2280	* we don't bother going toward it. Returns 1 if we
2481	* can see a direct way to get it	2281	* can see a direct way to get it
2482	* Modified to be map tile aware -.MSW	2282	* Modified to be map tile aware -.MSW
2483	*/	2283	*/
2484		2284	int
2485
2486	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2285	can_see_monsterP (maptile *m, int x, int y, int dir)
		2286	{
2487	sint16 dx, dy;	2287	sint16 dx, dy;
2488	int mflags;	2288	int mflags;
2489		2289
		2290	if (dir < 0)
2490	if(dir<0) return 0; /* exit condition: invalid direction */	2291	return 0; /* exit condition: invalid direction */
2491		2292
2492	dx = x + freearr_x[dir];	2293	dx = x + freearr_x[dir];
2493	dy = y + freearr_y[dir];	2294	dy = y + freearr_y[dir];
2494		2295
2495	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2296	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2496		2297
2497	/* This functional arguably was incorrect before - it was	2298	/* This functional arguably was incorrect before - it was
2498	* checking for P_WALL - that was basically seeing if	2299	* checking for P_WALL - that was basically seeing if
2499	* we could move to the monster - this is being more	2300	* we could move to the monster - this is being more
2500	* literal on if we can see it. To know if we can actually	2301	* literal on if we can see it. To know if we can actually
2501	* move to the monster, we'd need the monster passed in or	2302	* move to the monster, we'd need the monster passed in or
2502	* at least its move type.	2303	* at least its move type.
2503	*/	2304	*/
2504	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2305	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2306	return 0;
2505		2307
2506	/* yes, can see. */	2308	/* yes, can see. */
2507	if(dir < 9) return 1;	2309	if (dir < 9)
		2310	return 1;
		2311
2508	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2312	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2509	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2313	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2510	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2314	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2511	}	2315	}
2512		2316
2513
2514
2515	/*	2317	/*
2516	* can_pick(picker, item): finds out if an object is possible to be	2318	* can_pick(picker, item): finds out if an object is possible to be
2517	* picked up by the picker. Returnes 1 if it can be	2319	* picked up by the picker. Returnes 1 if it can be
2518	* picked up, otherwise 0.	2320	* picked up, otherwise 0.
2519	*	2321	*
…		…
2521	* core dumps if they do.	2323	* core dumps if they do.
2522	*	2324	*
2523	* Add a check so we can't pick up invisible objects (0.93.8)	2325	* Add a check so we can't pick up invisible objects (0.93.8)
2524	*/	2326	*/
2525		2327
		2328	int
2526	int can_pick(const object *who, const object *item) {	2329	can_pick (const object *who, const object *item)
		2330	{
2527	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2331	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2528	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2332	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2529	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2333	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2530	(who->type==PLAYER||item->weight<who->weight/3));
2531	}	2334	}
2532
2533		2335
2534	/*	2336	/*
2535	* create clone from object to another	2337	* create clone from object to another
2536	*/	2338	*/
		2339	object *
2537	object *object_create_clone (object *asrc) {	2340	object_create_clone (object *asrc)
		2341	{
2538	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2342	object *dst = 0, *tmp, *src, *part, *prev, *item;
2539		2343
2540	if(!asrc) return NULL;	2344	if (!asrc)
		2345	return 0;
		2346
2541	src = asrc;	2347	src = asrc;
2542	if(src->head)	2348	if (src->head)
2543	src = src->head;	2349	src = src->head;
2544		2350
2545	prev = NULL;	2351	prev = 0;
2546	for(part = src; part; part = part->more) {	2352	for (part = src; part; part = part->more)
2547	tmp = get_object();	2353	{
2548	copy_object(part,tmp);	2354	tmp = part->clone ();
2549	tmp->x -= src->x;	2355	tmp->x -= src->x;
2550	tmp->y -= src->y;	2356	tmp->y -= src->y;
		2357
2551	if(!part->head) {	2358	if (!part->head)
		2359	{
2552	dst = tmp;	2360	dst = tmp;
2553	tmp->head = NULL;	2361	tmp->head = 0;
		2362	}
2554	} else {	2363	else
2555	tmp->head = dst;	2364	tmp->head = dst;
2556	}	2365
2557	tmp->more = NULL;	2366	tmp->more = 0;
		2367
2558	if(prev)	2368	if (prev)
2559	prev->more = tmp;	2369	prev->more = tmp;
		2370
2560	prev = tmp;	2371	prev = tmp;
2561	}	2372	}
2562	/*** copy inventory ***/	2373
2563	for(item = src->inv; item; item = item->below) {	2374	for (item = src->inv; item; item = item->below)
2564	(void) insert_ob_in_ob(object_create_clone(item),dst);	2375	insert_ob_in_ob (object_create_clone (item), dst);
2565	}
2566		2376
2567	return dst;	2377	return dst;
2568	}
2569
2570	/* return true if the object was destroyed, 0 otherwise */
2571	int was_destroyed (const object *op, tag_t old_tag)
2572	{
2573	/* checking for FLAG_FREED isn't necessary, but makes this function more
2574	* robust */
2575	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2576	}	2378	}
2577		2379
2578	/* GROS - Creates an object using a string representing its content. */	2380	/* GROS - Creates an object using a string representing its content. */
2579	/* Basically, we save the content of the string to a temp file, then call */	2381	/* Basically, we save the content of the string to a temp file, then call */
2580	/* load_object on it. I admit it is a highly inefficient way to make things, */	2382	/* load_object on it. I admit it is a highly inefficient way to make things, */
2581	/* but it was simple to make and allows reusing the load_object function. */	2383	/* but it was simple to make and allows reusing the load_object function. */
2582	/* Remember not to use load_object_str in a time-critical situation. */	2384	/* Remember not to use load_object_str in a time-critical situation. */
2583	/* Also remember that multiparts objects are not supported for now. */	2385	/* Also remember that multiparts objects are not supported for now. */
2584		2386	object *
2585	object* load_object_str(const char *obstr)	2387	load_object_str (const char *obstr)
2586	{	2388	{
2587	object *op;	2389	object *op;
2588	char filename[MAX_BUF];	2390	char filename[MAX_BUF];
		2391
2589	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2392	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2590		2393
2591	FILE *tempfile=fopen(filename,"w");	2394	FILE *tempfile = fopen (filename, "w");
		2395
2592	if (tempfile == NULL)	2396	if (tempfile == NULL)
2593	{	2397	{
2594	LOG(llevError,"Error - Unable to access load object temp file\n");	2398	LOG (llevError, "Error - Unable to access load object temp file\n");
2595	return NULL;	2399	return NULL;
2596	};	2400	}
		2401
2597	fprintf(tempfile,obstr);	2402	fprintf (tempfile, obstr);
2598	fclose(tempfile);	2403	fclose (tempfile);
2599		2404
2600	op=get_object();	2405	op = object::create ();
2601		2406
2602	object_thawer thawer (filename);	2407	object_thawer thawer (filename);
		2408
2603	if (thawer)	2409	if (thawer)
2604	load_object(thawer,op,LO_NEWFILE,0);	2410	load_object (thawer, op, 0);
		2411
2605	LOG(llevDebug," load str completed, object=%s\n",op->name);	2412	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2606	CLEAR_FLAG(op,FLAG_REMOVED);	2413	CLEAR_FLAG (op, FLAG_REMOVED);
2607		2414
2608	return op;	2415	return op;
2609	}	2416	}
2610		2417
2611	/* This returns the first object in who's inventory that	2418	/* This returns the first object in who's inventory that
2612	* has the same type and subtype match.	2419	* has the same type and subtype match.
2613	* returns NULL if no match.	2420	* returns NULL if no match.
2614	*/	2421	*/
		2422	object *
2615	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2423	find_obj_by_type_subtype (const object *who, int type, int subtype)
2616	{	2424	{
2617	object *tmp;
2618
2619	for (tmp=who->inv; tmp; tmp=tmp->below)	2425	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2620	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2426	if (tmp->type == type && tmp->subtype == subtype)
		2427	return tmp;
2621		2428
2622	return NULL;	2429	return 0;
2623	}	2430	}
2624		2431
2625	/* If ob has a field named key, return the link from the list,	2432	/* If ob has a field named key, return the link from the list,
2626	* otherwise return NULL.	2433	* otherwise return NULL.
2627	*	2434	*
2628	* key must be a passed in shared string - otherwise, this won't	2435	* key must be a passed in shared string - otherwise, this won't
2629	* do the desired thing.	2436	* do the desired thing.
2630	*/	2437	*/
		2438	key_value *
2631	key_value * get_ob_key_link(const object * ob, const char * key) {	2439	get_ob_key_link (const object *ob, const char *key)
2632	key_value * link;	2440	{
2633
2634	for (link = ob->key_values; link != NULL; link = link->next) {	2441	for (key_value *link = ob->key_values; link; link = link->next)
2635	if (link->key == key) {	2442	if (link->key == key)
2636	return link;	2443	return link;
2637	}	2444
2638	}	2445	return 0;
2639		2446	}
2640	return NULL;
2641	}
2642		2447
2643	/*	2448	/*
2644	* Returns the value of op has an extra_field for key, or NULL.	2449	* Returns the value of op has an extra_field for key, or NULL.
2645	*	2450	*
2646	* The argument doesn't need to be a shared string.	2451	* The argument doesn't need to be a shared string.
2647	*	2452	*
2648	* The returned string is shared.	2453	* The returned string is shared.
2649	*/	2454	*/
		2455	const char *
2650	const char * get_ob_key_value(const object * op, const char * const key) {	2456	get_ob_key_value (const object *op, const char *const key)
		2457	{
2651	key_value * link;	2458	key_value *link;
2652	const char * canonical_key;	2459	shstr_cmp canonical_key (key);
		2460
		2461	if (!canonical_key)
2653		2462	{
2654	canonical_key = find_string(key);
2655
2656	if (canonical_key == NULL) {
2657	/* 1. There being a field named key on any object	2463	/* 1. There being a field named key on any object
2658	* implies there'd be a shared string to find.	2464	* implies there'd be a shared string to find.
2659	* 2. Since there isn't, no object has this field.	2465	* 2. Since there isn't, no object has this field.
2660	* 3. Therefore, *this* object doesn't have this field.	2466	* 3. Therefore, *this* object doesn't have this field.
2661	*/	2467	*/
2662	return NULL;	2468	return 0;
2663	}	2469	}
2664		2470
2665	/* This is copied from get_ob_key_link() above -	2471	/* This is copied from get_ob_key_link() above -
2666	* only 4 lines, and saves the function call overhead.	2472	* only 4 lines, and saves the function call overhead.
2667	*/	2473	*/
2668	for (link = op->key_values; link != NULL; link = link->next) {	2474	for (link = op->key_values; link; link = link->next)
2669	if (link->key == canonical_key) {	2475	if (link->key == canonical_key)
2670	return link->value;	2476	return link->value;
2671	}	2477
2672	}	2478	return 0;
2673	return NULL;
2674	}	2479	}
2675		2480
2676		2481
2677	/*	2482	/*
2678	* Updates the canonical_key in op to value.	2483	* Updates the canonical_key in op to value.
…		…
2682	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2487	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2683	* keys.	2488	* keys.
2684	*	2489	*
2685	* Returns TRUE on success.	2490	* Returns TRUE on success.
2686	*/	2491	*/
		2492	int
2687	int set_ob_key_value_s(object * op, const char * canonical_key, const char * value, int add_key) {	2493	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2494	{
2688	key_value * field = NULL, *last=NULL;	2495	key_value *field = NULL, *last = NULL;
2689		2496
2690	for (field=op->key_values; field != NULL; field=field->next) {	2497	for (field = op->key_values; field != NULL; field = field->next)
		2498	{
2691	if (field->key != canonical_key) {	2499	if (field->key != canonical_key)
		2500	{
2692	last = field;	2501	last = field;
2693	continue;	2502	continue;
2694	}	2503	}
2695		2504
2696	if (field->value) FREE_AND_CLEAR_STR(field->value);
2697	if (value)	2505	if (value)
2698	field->value = add_string(value);	2506	field->value = value;
2699	else {	2507	else
		2508	{
2700	/* Basically, if the archetype has this key set,	2509	/* Basically, if the archetype has this key set,
2701	* we need to store the null value so when we save	2510	* we need to store the null value so when we save
2702	* it, we save the empty value so that when we load,	2511	* it, we save the empty value so that when we load,
2703	* we get this value back again.	2512	* we get this value back again.
2704	*/	2513	*/
2705	if (get_ob_key_link(&op->arch->clone, canonical_key))	2514	if (get_ob_key_link (&op->arch->clone, canonical_key))
2706	field->value = NULL;	2515	field->value = 0;
2707	else {	2516	else
2708	/* Delete this link */	2517	{
2709	if (field->key) FREE_AND_CLEAR_STR(field->key);	2518	if (last)
2710	if (field->value) FREE_AND_CLEAR_STR(field->value);
2711	if (last) last->next = field->next;	2519	last->next = field->next;
		2520	else
2712	else op->key_values = field->next;	2521	op->key_values = field->next;
		2522
2713	free(field);	2523	delete field;
2714	}	2524	}
2715	}	2525	}
2716	return TRUE;	2526	return TRUE;
2717	}	2527	}
2718	/* IF we get here, key doesn't exist */	2528	/* IF we get here, key doesn't exist */
2719		2529
2720	/* No field, we'll have to add it. */	2530	/* No field, we'll have to add it. */
2721		2531
2722	if (!add_key) {	2532	if (!add_key)
2723	return FALSE;	2533	return FALSE;
2724	}	2534
2725	/* There isn't any good reason to store a null	2535	/* There isn't any good reason to store a null
2726	* value in the key/value list. If the archetype has	2536	* value in the key/value list. If the archetype has
2727	* this key, then we should also have it, so shouldn't	2537	* this key, then we should also have it, so shouldn't
2728	* be here. If user wants to store empty strings,	2538	* be here. If user wants to store empty strings,
2729	* should pass in ""	2539	* should pass in ""
2730	*/	2540	*/
2731	if (value == NULL) return TRUE;	2541	if (value == NULL)
2732
2733	field = (key_value *) malloc(sizeof(key_value));
2734
2735	field->key = add_refcount(canonical_key);
2736	field->value = add_string(value);
2737	/* Usual prepend-addition. */
2738	field->next = op->key_values;
2739	op->key_values = field;
2740
2741	return TRUE;	2542	return TRUE;
		2543
		2544	field = new key_value;
		2545
		2546	field->key = canonical_key;
		2547	field->value = value;
		2548	/* Usual prepend-addition. */
		2549	field->next = op->key_values;
		2550	op->key_values = field;
		2551
		2552	return TRUE;
2742	}	2553	}
2743		2554
2744	/*	2555	/*
2745	* Updates the key in op to value.	2556	* Updates the key in op to value.
2746	*	2557	*
…		…
2748	* and not add new ones.	2559	* and not add new ones.
2749	* In general, should be little reason FALSE is ever passed in for add_key	2560	* In general, should be little reason FALSE is ever passed in for add_key
2750	*	2561	*
2751	* Returns TRUE on success.	2562	* Returns TRUE on success.
2752	*/	2563	*/
		2564	int
2753	int set_ob_key_value(object * op, const char * key, const char * value, int add_key) {	2565	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2754	const char * canonical_key = NULL;	2566	{
2755	int floating_ref = FALSE;	2567	shstr key_ (key);
2756	int ret;	2568
		2569	return set_ob_key_value_s (op, key_, value, add_key);
		2570	}
		2571
		2572	object::depth_iterator::depth_iterator (object *container)
		2573	: iterator_base (container)
		2574	{
		2575	while (item->inv)
		2576	item = item->inv;
		2577	}
		2578
		2579	void
		2580	object::depth_iterator::next ()
		2581	{
		2582	if (item->below)
2757		2583	{
2758	/* HACK This mess is to make sure set_ob_value() passes a shared string	2584	item = item->below;
2759	* to get_ob_key_link(), without leaving a leaked refcount.	2585
2760	*/	2586	while (item->inv)
		2587	item = item->inv;
2761		2588	}
2762	canonical_key = find_string(key);	2589	else
2763	if (canonical_key == NULL) {	2590	item = item->env;
2764	canonical_key = add_string(key);	2591	}
2765	floating_ref = TRUE;	2592
2766	}	2593
		2594	const char *
		2595	object::flag_desc (char *desc, int len) const
		2596	{
		2597	char *p = desc;
		2598	bool first = true;
		2599
		2600	for (int i = 0; i < NUM_FLAGS; i++)
2767		2601	{
2768	ret = set_ob_key_value_s(op, canonical_key, value, add_key);	2602	if (len <= 10) // magic constant!
		2603	{
		2604	snprintf (p, len, ",...");
		2605	break;
		2606	}
		2607
		2608	if (flag[i])
		2609	{
		2610	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2611	len -= cnt;
		2612	p += cnt;
		2613	first = false;
		2614	}
2769		2615	}
2770	if (floating_ref) {	2616
2771	free_string(canonical_key);
2772	}
2773
2774	return ret;	2617	return desc;
2775	}	2618	}
		2619
		2620	// return a suitable string describing an objetc in enough detail to find it
		2621	const char *
		2622	object::debug_desc (char *info) const
		2623	{
		2624	char flagdesc[512];
		2625	char info2[256 * 4];
		2626	char *p = info;
		2627
		2628	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",
		2629	count, uuid.seq,
		2630	&name,
		2631	title ? "\",title:" : "",
		2632	title ? (const char *)title : "",
		2633	flag_desc (flagdesc, 512), type);
		2634
		2635	if (env)
		2636	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2637
		2638	if (map)
		2639	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2640
		2641	return info;
		2642	}
		2643
		2644	const char *
		2645	object::debug_desc () const
		2646	{
		2647	static char info[256 * 3];
		2648	return debug_desc (info);
		2649	}
		2650

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