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Comparing deliantra/server/common/object.C (file contents):
Revision 1.15 by root, Mon Sep 4 13:55:54 2006 UTC vs.
Revision 1.64 by root, Tue Dec 12 21:39:56 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.15 2006/09/04 13:55:54 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>
		34
42	int nrofallocobjects = 0;	35	int nrofallocobjects = 0;
		36	static UUID uuid;
		37	const uint64 UUID_SKIP = 1<<19;
43		38
44	object *objects; /* Pointer to the list of used objects */
45	object *active_objects; /* List of active objects that need to be processed */	39	object *active_objects; /* List of active objects that need to be processed */
46		40
47	short freearr_x[SIZEOFFREE]=	41	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,
48	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
49	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	42	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	short freearr_y[SIZEOFFREE]=	43	};
51	{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,	44	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,
52	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	45	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
53	int maxfree[SIZEOFFREE]=	46	};
54	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	47	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,
55	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};	48	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
		49	};
56	int freedir[SIZEOFFREE]= {	50	int freedir[SIZEOFFREE] = {
57	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,	51	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,
58	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	52	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		53	};
59		54
		55	static void
		56	write_uuid (void)
		57	{
		58	char filename1[MAX_BUF], filename2[MAX_BUF];
		59
		60	sprintf (filename1, "%s/uuid", settings.localdir);
		61	sprintf (filename2, "%s/uuid~", settings.localdir);
		62
		63	FILE *fp;
		64
		65	if (!(fp = fopen (filename2, "w")))
		66	{
		67	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		68	return;
		69	}
		70
		71	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		72	fclose (fp);
		73	rename (filename2, filename1);
		74	}
		75
		76	static void
		77	read_uuid (void)
		78	{
		79	char filename[MAX_BUF];
		80
		81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	FILE *fp;
		84
		85	if (!(fp = fopen (filename, "r")))
		86	{
		87	if (errno == ENOENT)
		88	{
		89	LOG (llevInfo, "RESET uid to 1\n");
		90	uuid.seq = 0;
		91	write_uuid ();
		92	return;
		93	}
		94
		95	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		96	_exit (1);
		97	}
		98
		99	int version;
		100	unsigned long long uid;
		101	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		102	{
		103	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		104	_exit (1);
		105	}
		106
		107	uuid.seq = uid;
		108	write_uuid ();
		109	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		110	fclose (fp);
		111	}
		112
		113	UUID
		114	gen_uuid ()
		115	{
		116	UUID uid;
		117
		118	uid.seq = ++uuid.seq;
		119
		120	if (!(uuid.seq & (UUID_SKIP - 1)))
		121	write_uuid ();
		122
		123	return uid;
		124	}
		125
		126	void
		127	init_uuid ()
		128	{
		129	read_uuid ();
		130	}
60		131
61	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	132	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		133	static int
62	static int compare_ob_value_lists_one(const object * wants, const object * has) {	134	compare_ob_value_lists_one (const object *wants, const object *has)
		135	{
63	key_value * wants_field;	136	key_value *wants_field;
64		137
65	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	138	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
66	* objects with lists are rare, and lists stay short. If not, use a	139	* objects with lists are rare, and lists stay short. If not, use a
67	* different structure or at least keep the lists sorted...	140	* different structure or at least keep the lists sorted...
68	*/	141	*/
69		142
70	/* For each field in wants, */	143	/* For each field in wants, */
71	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		145	{
72	key_value * has_field;	146	key_value *has_field;
73		147
74	/* Look for a field in has with the same key. */	148	/* Look for a field in has with the same key. */
75	has_field = get_ob_key_link(has, wants_field->key);	149	has_field = get_ob_key_link (has, wants_field->key);
		150
		151	if (has_field == NULL)
76		152	{
77	if (has_field == NULL) {
78	/* No field with that name. */	153	/* No field with that name. */
79	return FALSE;	154	return FALSE;
80	}
81		155	}
		156
82	/* Found the matching field. */	157	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {	158	if (has_field->value != wants_field->value)
		159	{
84	/* Values don't match, so this half of the comparison is false. */	160	/* Values don't match, so this half of the comparison is false. */
85	return FALSE;	161	return FALSE;
86	}	162	}
87		163
88	/* If we get here, we found a match. Now for the next field in wants. */	164	/* If we get here, we found a match. Now for the next field in wants. */
89	}
90		165	}
		166
91	/* If we get here, every field in wants has a matching field in has. */	167	/* If we get here, every field in wants has a matching field in has. */
92	return TRUE;	168	return TRUE;
93	}	169	}
94		170
95	/* Returns TRUE if ob1 has the same key_values as ob2. */	171	/* Returns TRUE if ob1 has the same key_values as ob2. */
		172	static int
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	173	compare_ob_value_lists (const object *ob1, const object *ob2)
		174	{
97	/* However, there may be fields in has which aren't partnered in wants,	175	/* However, there may be fields in has which aren't partnered in wants,
98	* so we need to run the comparison *twice*. :(	176	* so we need to run the comparison *twice*. :(
99	*/	177	*/
100	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	178	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
101	}	179	}
102		180
103	/* Function examines the 2 objects given to it, and returns true if	181	/* Function examines the 2 objects given to it, and returns true if
104	* they can be merged together.	182	* they can be merged together.
105	*	183	*
…		…
111	*	189	*
112	* Improvements made with merge: Better checking on potion, and also	190	* Improvements made with merge: Better checking on potion, and also
113	* check weight	191	* check weight
114	*/	192	*/
115		193
116	int CAN_MERGE(object *ob1, object *ob2) {	194	bool object::can_merge (object *ob1, object *ob2)
117		195	{
118	/* A couple quicksanity checks */	196	/* A couple quicksanity checks */
119	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	197	if ((ob1 == ob2) || (ob1->type != ob2->type))
		198	return 0;
120		199
121	if (ob1->speed != ob2->speed) return 0;	200	if (ob1->speed != ob2->speed)
122	/* Note sure why the following is the case - either the object has to	201	return 0;
123	* be animated or have a very low speed. Is this an attempted monster	202
124	* check?	203	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
		204	* value could not be stored in a sint32 (which unfortunately sometimes is
		205	* used to store nrof).
125	*/	206	*/
126	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	207	if (ob1->nrof + ob2->nrof >= 1UL << 31)
		208	return 0;
		209
		210	/* If the objects have been identified, set the BEEN_APPLIED flag.
		211	* This is to the comparison of the flags below will be OK. We
		212	* just can't ignore the been applied or identified flags, as they
		213	* are not equal - just if it has been identified, the been_applied
		214	* flags lose any meaning.
		215	*/
		216	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		218
		219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		221
		222
		223	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
		224	* being locked in inventory should prevent merging.
		225	* 0x4 in flags3 is CLIENT_SENT
		226	*/
		227	if ((ob1->arch != ob2->arch) ||
		228	(ob1->flags[0] != ob2->flags[0]) ||
		229	(ob1->flags[1] != ob2->flags[1]) ||
		230	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
		231	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
		232	(ob1->name != ob2->name) ||
		233	(ob1->title != ob2->title) ||
		234	(ob1->msg != ob2->msg) ||
		235	(ob1->weight != ob2->weight) ||
		236	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
		237	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
		238	(ob1->attacktype != ob2->attacktype) ||
		239	(ob1->magic != ob2->magic) ||
		240	(ob1->slaying != ob2->slaying) ||
		241	(ob1->skill != ob2->skill) ||
		242	(ob1->value != ob2->value) ||
		243	(ob1->animation_id != ob2->animation_id) ||
		244	(ob1->client_type != ob2->client_type) ||
		245	(ob1->materialname != ob2->materialname) ||
		246	(ob1->lore != ob2->lore) ||
		247	(ob1->subtype != ob2->subtype) ||
		248	(ob1->move_type != ob2->move_type) ||
		249	(ob1->move_block != ob2->move_block) ||
		250	(ob1->move_allow != ob2->move_allow) ||
		251	(ob1->move_on != ob2->move_on) ||
		252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))
		253	return 0;
		254
		255	/* This is really a spellbook check - really, we should
		256	* check all objects in the inventory.
		257	*/
		258	if (ob1->inv || ob2->inv)
		259	{
		260	/* if one object has inventory but the other doesn't, not equiv */
		261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
127	return 0;	262	return 0;
128		263
129	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	264	/* Now check to see if the two inventory objects could merge */
130	* value could not be stored in a sint32 (which unfortunately sometimes is	265	if (!CAN_MERGE (ob1->inv, ob2->inv))
131	* used to store nrof).
132	*/
133	if (ob1->nrof+ob2->nrof >= 1UL<<31)
134	return 0;	266	return 0;
135		267
136	/* This is really a spellbook check - really, we should
137	* check all objects in the inventory.
138	*/
139	if (ob1->inv || ob2->inv) {
140	/* if one object has inventory but the other doesn't, not equiv */
141	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv)) return 0;
142
143	/* Now check to see if the two inventory objects could merge */
144	if (!CAN_MERGE(ob1->inv, ob2->inv)) return 0;
145
146	/* inventory ok - still need to check rest of this object to see	268	/* inventory ok - still need to check rest of this object to see
147	* if it is valid.	269	* if it is valid.
148	*/	270	*/
149	}	271	}
150		272
151	/* If the objects have been identified, set the BEEN_APPLIED flag.
152	* This is to the comparison of the flags below will be OK. We
153	* just can't ignore the been applied or identified flags, as they
154	* are not equal - just if it has been identified, the been_applied
155	* flags lose any meaning.
156	*/
157	if (QUERY_FLAG(ob1, FLAG_IDENTIFIED))
158	SET_FLAG(ob1, FLAG_BEEN_APPLIED);
159
160	if (QUERY_FLAG(ob2, FLAG_IDENTIFIED))
161	SET_FLAG(ob2, FLAG_BEEN_APPLIED);
162
163
164	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
165	* being locked in inventory should prevent merging.
166	* 0x4 in flags3 is CLIENT_SENT
167	*/
168	if ((ob1->arch != ob2->arch) ||
169	(ob1->flags[0] != ob2->flags[0]) ||
170	(ob1->flags[1] != ob2->flags[1]) ||
171	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~ 0x400000)) ||
172	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
173	(ob1->name != ob2->name) ||
174	(ob1->title != ob2->title) ||
175	(ob1->msg != ob2->msg) ||
176	(ob1->weight != ob2->weight) ||
177	(memcmp(&ob1->resist, &ob2->resist, sizeof(ob1->resist))!=0) ||
178	(memcmp(&ob1->stats, &ob2->stats, sizeof(ob1->stats))!=0) ||
179	(ob1->attacktype != ob2->attacktype) ||
180	(ob1->magic != ob2->magic) ||
181	(ob1->slaying != ob2->slaying) ||
182	(ob1->skill != ob2->skill) ||
183	(ob1->value != ob2->value) ||
184	(ob1->animation_id != ob2->animation_id) ||
185	(ob1->client_type != ob2->client_type) ||
186	(ob1->materialname != ob2->materialname) ||
187	(ob1->lore != ob2->lore) ||
188	(ob1->subtype != ob2->subtype) ||
189	(ob1->move_type != ob2->move_type) ||
190	(ob1->move_block != ob2->move_block) ||
191	(ob1->move_allow != ob2->move_allow) ||
192	(ob1->move_on != ob2->move_on) ||
193	(ob1->move_off != ob2->move_off) ||
194	(ob1->move_slow != ob2->move_slow) ||
195	(ob1->move_slow_penalty != ob2->move_slow_penalty)
196	)
197	return 0;
198
199	/* Don't merge objects that are applied. With the new 'body' code,	273	/* Don't merge objects that are applied. With the new 'body' code,
200	* it is possible for most any character to have more than one of	274	* it is possible for most any character to have more than one of
201	* some items equipped, and we don't want those to merge.	275	* some items equipped, and we don't want those to merge.
202	*/	276	*/
203	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	277	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		278	return 0;
		279
		280	/* Note sure why the following is the case - either the object has to
		281	* be animated or have a very low speed. Is this an attempted monster
		282	* check?
		283	*/
		284	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		285	return 0;
		286
		287	switch (ob1->type)
		288	{
		289	case SCROLL:
		290	if (ob1->level != ob2->level)
		291	return 0;
		292	break;
		293	}
		294
		295	if (ob1->key_values != NULL || ob2->key_values != NULL)
		296	{
		297	/* At least one of these has key_values. */
		298	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
		299	/* One has fields, but the other one doesn't. */
204	return 0;	300	return 0;
205
206	switch (ob1->type) {
207	case SCROLL:
208	if (ob1->level != ob2->level) return 0;
209	break;
210
211	}
212	if (ob1->key_values != NULL || ob2->key_values != NULL) {
213	/* At least one of these has key_values. */
214	if ((ob1->key_values == NULL) != (ob2->key_values == NULL)) {
215	/* One has fields, but the other one doesn't. */
216	return 0;
217	} else if (!compare_ob_value_lists(ob1, ob2)) {	301	else if (!compare_ob_value_lists (ob1, ob2))
218	return 0;	302	return 0;
219	}	303	}
		304
		305	//TODO: generate an event or call into perl for additional checks
		306	if (ob1->self || ob2->self)
220	}	307	{
		308	ob1->optimise ();
		309	ob2->optimise ();
221		310
		311	if (ob1->self || ob2->self)
		312	return 0;
		313	}
		314
222	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
223	return 1;	316	return 1;
224	}	317	}
225		318
226	/*	319	/*
227	* sum_weight() is a recursive function which calculates the weight	320	* sum_weight() is a recursive function which calculates the weight
228	* an object is carrying. It goes through in figures out how much	321	* an object is carrying. It goes through in figures out how much
229	* containers are carrying, and sums it up.	322	* containers are carrying, and sums it up.
230	*/	323	*/
231	signed long sum_weight(object *op) {	324	long
		325	sum_weight (object *op)
		326	{
232	signed long sum;	327	long sum;
233	object *inv;	328	object *inv;
		329
234	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	330	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		331	{
235	if (inv->inv)	332	if (inv->inv)
236	sum_weight(inv);	333	sum_weight (inv);
237	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	334	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
238	}	335	}
		336
239	if (op->type == CONTAINER && op->stats.Str)	337	if (op->type == CONTAINER && op->stats.Str)
240	sum = (sum * (100 - op->stats.Str))/100;	338	sum = (sum * (100 - op->stats.Str)) / 100;
		339
241	if(op->carrying != sum)	340	if (op->carrying != sum)
242	op->carrying = sum;	341	op->carrying = sum;
		342
243	return sum;	343	return sum;
244	}	344	}
245		345
246	/**	346	/**
247	* Return the outermost environment object for a given object.	347	* Return the outermost environment object for a given object.
248	*/	348	*/
249		349
		350	object *
250	object *object_get_env_recursive (object *op) {	351	object_get_env_recursive (object *op)
		352	{
251	while (op->env != NULL)	353	while (op->env != NULL)
252	op = op->env;	354	op = op->env;
253	return op;	355	return op;
254	}	356	}
255		357
256	/*	358	/*
257	* Eneq(@csd.uu.se): Since we can have items buried in a character we need	359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
258	* a better check. We basically keeping traversing up until we can't	360	* a better check. We basically keeping traversing up until we can't
259	* or find a player.	361	* or find a player.
260	*/	362	*/
261		363
		364	object *
262	object *is_player_inv (object *op) {	365	is_player_inv (object *op)
		366	{
263	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	367	for (; op != NULL && op->type != PLAYER; op = op->env)
264	if (op->env==op)	368	if (op->env == op)
265	op->env = NULL;	369	op->env = NULL;
266	return op;	370	return op;
267	}	371	}
268		372
269	/*	373	/*
270	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
271	* Some error messages.	375	* Some error messages.
272	* The result of the dump is stored in the static global errmsg array.	376	* The result of the dump is stored in the static global errmsg array.
273	*/	377	*/
274		378
275	void dump_object2(object *op) {	379	char *
276	errmsg[0] = 0;
277	return;
278	//TODO//D#d#
279	#if 0
280	char *cp;
281	/* object *tmp;*/
282
283	if(op->arch!=NULL) {
284	strcat(errmsg,"arch ");
285	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
286	strcat(errmsg,"\n");
287	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
288	strcat(errmsg,cp);
289	#if 0
290	/* Don't dump player diffs - they are too long, mostly meaningless, and
291	* will overflow the buffer.
292	* Changed so that we don't dump inventory either. This may
293	* also overflow the buffer.
294	*/
295	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
296	strcat(errmsg,cp);
297	for (tmp=op->inv; tmp; tmp=tmp->below)
298	dump_object2(tmp);
299	#endif
300	strcat(errmsg,"end\n");
301	} else {
302	strcat(errmsg,"Object ");
303	if (op->name==NULL) strcat(errmsg, "(null)");
304	else strcat(errmsg,op->name);
305	strcat(errmsg,"\n");
306	#if 0
307	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
308	strcat(errmsg,cp);
309	for (tmp=op->inv; tmp; tmp=tmp->below)
310	dump_object2(tmp);
311	#endif
312	strcat(errmsg,"end\n");
313	}
314	#endif
315	}
316
317	/*
318	* Dumps an object. Returns output in the static global errmsg array.
319	*/
320
321	void dump_object(object *op) {	380	dump_object (object *op)
322	if(op==NULL) {	381	{
323	strcpy(errmsg,"[NULL pointer]");	382	if (!op)
324	return;	383	return strdup ("[NULLOBJ]");
325	}
326	errmsg[0]='\0';
327	dump_object2(op);
328	}
329		384
330	void dump_all_objects(void) {	385	object_freezer freezer;
331	object *op;	386	save_object (freezer, op, 3);
332	for(op=objects;op!=NULL;op=op->next) {	387	return freezer.as_string ();
333	dump_object(op);
334	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
335	}
336	}	388	}
337		389
338	/*	390	/*
339	* get_nearest_part(multi-object, object 2) returns the part of the	391	* get_nearest_part(multi-object, object 2) returns the part of the
340	* multi-object 1 which is closest to the second object.	392	* multi-object 1 which is closest to the second object.
341	* If it's not a multi-object, it is returned.	393	* If it's not a multi-object, it is returned.
342	*/	394	*/
343		395
		396	object *
344	object *get_nearest_part(object *op, const object *pl) {	397	get_nearest_part (object *op, const object *pl)
		398	{
345	object *tmp,*closest;	399	object *tmp, *closest;
346	int last_dist,i;	400	int last_dist, i;
		401
347	if(op->more==NULL)	402	if (op->more == NULL)
348	return op;	403	return op;
349	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	404	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
350	if((i=distance(tmp,pl))<last_dist)	405	if ((i = distance (tmp, pl)) < last_dist)
351	closest=tmp,last_dist=i;	406	closest = tmp, last_dist = i;
352	return closest;	407	return closest;
353	}	408	}
354		409
355	/*	410	/*
356	* Returns the object which has the count-variable equal to the argument.	411	* Returns the object which has the count-variable equal to the argument.
357	*/	412	*/
358		413
		414	object *
359	object *find_object(tag_t i) {	415	find_object (tag_t i)
360	object *op;	416	{
361	for(op=objects;op!=NULL;op=op->next)	417	for (object *op = object::first; op; op = op->next)
362	if(op->count==i)	418	if (op->count == i)
363	break;	419	return op;
		420
364	return op;	421	return 0;
365	}	422	}
366		423
367	/*	424	/*
368	* Returns the first object which has a name equal to the argument.	425	* Returns the first object which has a name equal to the argument.
369	* Used only by the patch command, but not all that useful.	426	* Used only by the patch command, but not all that useful.
370	* Enables features like "patch <name-of-other-player> food 999"	427	* Enables features like "patch <name-of-other-player> food 999"
371	*/	428	*/
372		429
		430	object *
373	object *find_object_name(const char *str) {	431	find_object_name (const char *str)
374	const char *name = shstr::find (str);	432	{
		433	shstr_cmp str_ (str);
375	object *op;	434	object *op;
		435
376	for(op=objects;op!=NULL;op=op->next)	436	for (op = object::first; op != NULL; op = op->next)
377	if(&op->name == name)	437	if (op->name == str_)
378	break;	438	break;
379		439
380	return op;	440	return op;
381	}	441	}
382		442
		443	void
383	void free_all_object_data ()	444	free_all_object_data ()
384	{	445	{
385	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	446	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
386	}
387
388	/*
389	* Returns the object which this object marks as being the owner.
390	* A id-scheme is used to avoid pointing to objects which have been
391	* freed and are now reused. If this is detected, the owner is
392	* set to NULL, and NULL is returned.
393	* Changed 2004-02-12 - if the player is setting at the play again
394	* prompt, he is removed, and we don't want to treat him as an owner of
395	* anything, so check removed flag. I don't expect that this should break
396	* anything - once an object is removed, it is basically dead anyways.
397	*/
398
399	object *get_owner(object *op) {
400	if(op->owner==NULL)
401	return NULL;
402
403	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
404	op->owner->count==op->ownercount)
405	return op->owner;
406
407	op->owner=NULL;
408	op->ownercount=0;
409	return NULL;
410	}
411
412	void clear_owner(object *op)
413	{
414	if (!op) return;
415
416	if (op->owner && op->ownercount == op->owner->count)
417	op->owner->refcount--;
418
419	op->owner = NULL;
420	op->ownercount = 0;
421	}	447	}
422		448
423	/*	449	/*
424	* Sets the owner and sets the skill and exp pointers to owner's current	450	* Sets the owner and sets the skill and exp pointers to owner's current
425	* skill and experience objects.	451	* skill and experience objects.
426	*/	452	*/
427	void set_owner (object *op, object *owner)	453	void
		454	object::set_owner (object *owner)
428	{	455	{
429	if(owner==NULL||op==NULL)	456	if (!owner)
430	return;	457	return;
431		458
432	/* next line added to allow objects which own objects */	459	/* next line added to allow objects which own objects */
433	/* Add a check for ownercounts in here, as I got into an endless loop	460	/* Add a check for ownercounts in here, as I got into an endless loop
434	* with the fireball owning a poison cloud which then owned the	461	* with the fireball owning a poison cloud which then owned the
435	* fireball. I believe that was caused by one of the objects getting	462	* fireball. I believe that was caused by one of the objects getting
436	* freed and then another object replacing it. Since the ownercounts	463	* freed and then another object replacing it. Since the ownercounts
437	* didn't match, this check is valid and I believe that cause is valid.	464	* didn't match, this check is valid and I believe that cause is valid.
438	*/	465	*/
439	while (owner->owner && owner!=owner->owner &&	466	while (owner->owner)
440	owner->ownercount==owner->owner->count) owner=owner->owner;	467	owner = owner->owner;
441		468
442	/* IF the owner still has an owner, we did not resolve to a final owner.
443	* so lets not add to that.
444	*/
445	if (owner->owner) return;
446
447	op->owner=owner;	469	this->owner = owner;
448
449	op->ownercount=owner->count;
450	owner->refcount++;
451
452	}
453
454	/* Set the owner to clone's current owner and set the skill and experience
455	* objects to clone's objects (typically those objects that where the owner's
456	* current skill and experience objects at the time when clone's owner was
457	* set - not the owner's current skill and experience objects).
458	*
459	* Use this function if player created an object (e.g. fire bullet, swarm
460	* spell), and this object creates further objects whose kills should be
461	* accounted for the player's original skill, even if player has changed
462	* skills meanwhile.
463	*/
464	void copy_owner (object *op, object *clone)
465	{
466	object *owner = get_owner (clone);
467	if (owner == NULL) {
468	/* players don't have owners - they own themselves. Update
469	* as appropriate.
470	*/
471	if (clone->type == PLAYER) owner=clone;
472	else return;
473	}
474	set_owner(op, owner);
475
476	}	470	}
477		471
478	/* Zero the key_values on op, decrementing the shared-string	472	/* Zero the key_values on op, decrementing the shared-string
479	* refcounts and freeing the links.	473	* refcounts and freeing the links.
480	*/	474	*/
		475	static void
481	static void free_key_values(object * op)	476	free_key_values (object *op)
482	{	477	{
483	for (key_value *i = op->key_values; i != 0; )	478	for (key_value *i = op->key_values; i != 0;)
484	{	479	{
485	key_value *next = i->next;	480	key_value *next = i->next;
486	delete i;	481	delete i;
		482
487	i = next;	483	i = next;
488	}	484	}
489		485
490	op->key_values = 0;	486	op->key_values = 0;
491	}	487	}
492		488
493	void object::clear ()	489	void object::clear ()
494	{	490	{
495	attachable_base::clear ();	491	attachable_base::clear ();
496		492
497	free_key_values (this);	493	free_key_values (this);
498		494
499	name = 0;	495	owner = 0;
		496	name = 0;
500	name_pl = 0;	497	name_pl = 0;
501	title = 0;	498	title = 0;
502	race = 0;	499	race = 0;
503	slaying = 0;	500	slaying = 0;
504	skill = 0;	501	skill = 0;
505	msg = 0;	502	msg = 0;
506	lore = 0;	503	lore = 0;
507	custom_name = 0;	504	custom_name = 0;
508	materialname = 0;	505	materialname = 0;
		506	contr = 0;
		507	below = 0;
		508	above = 0;
		509	inv = 0;
		510	container = 0;
		511	env = 0;
		512	more = 0;
		513	head = 0;
		514	map = 0;
		515	active_next = 0;
		516	active_prev = 0;
509		517
510	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));	518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
511		519
512	SET_FLAG (this, FLAG_REMOVED);	520	SET_FLAG (this, FLAG_REMOVED);
513	}
514		521
515	void object::clone (object *destination)
516	{
517	*(object_copy *)destination = *(object_copy *)this;
518	*(object_pod *)destination = *(object_pod *)this;
519
520	if (self || cb)
521	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
522	}
523
524	/*
525	* clear_object() frees everything allocated by an object, and also
526	* clears all variables and flags to default settings.
527	*/
528
529	void clear_object (object *op)
530	{
531	op->clear ();
532
533	op->contr = NULL;
534	op->below = NULL;
535	op->above = NULL;
536	op->inv = NULL;
537	op->container=NULL;
538	op->env=NULL;
539	op->more=NULL;
540	op->head=NULL;
541	op->map=NULL;
542	op->refcount=0;
543	op->active_next = NULL;
544	op->active_prev = NULL;
545	/* What is not cleared is next, prev, and count */	522	/* What is not cleared is next, prev, and count */
546		523
547	op->expmul = 1.0;	524	expmul = 1.0;
548	op->face = blank_face;	525	face = blank_face;
549	op->attacked_by_count = -1;
550		526
551	if (settings.casting_time)	527	if (settings.casting_time)
552	op->casting_time = -1;	528	casting_time = -1;
553	}	529	}
554		530
555	/*	531	/*
556	* copy object first frees everything allocated by the second object,	532	* copy_to first frees everything allocated by the dst object,
557	* and then copies the contends of the first object into the second	533	* and then copies the contents of itself into the second
558	* object, allocating what needs to be allocated. Basically, any	534	* object, allocating what needs to be allocated. Basically, any
559	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	535	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
560	* if the first object is freed, the pointers in the new object	536	* if the first object is freed, the pointers in the new object
561	* will point at garbage.	537	* will point at garbage.
562	*/	538	*/
563		539	void
564	void copy_object (object *op2, object *op)	540	object::copy_to (object *dst)
565	{	541	{
566	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	542	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
567	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	543	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
568		544
569	op2->clone (op);	545	*(object_copy *)dst = *this;
		546	*(object_pod *)dst = *this;
570		547
571	if (is_freed) SET_FLAG (op, FLAG_FREED);	548	if (self || cb)
572	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	549	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
573		550
		551	if (is_freed)
		552	SET_FLAG (dst, FLAG_FREED);
		553
		554	if (is_removed)
		555	SET_FLAG (dst, FLAG_REMOVED);
		556
574	if (op2->speed < 0)	557	if (speed < 0)
575	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	558	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
576		559
577	/* Copy over key_values, if any. */	560	/* Copy over key_values, if any. */
578	if (op2->key_values != NULL)	561	if (key_values)
579	{	562	{
580	key_value *tail = NULL;	563	key_value *tail = 0;
581	key_value *i;	564	key_value *i;
582		565
583	op->key_values = NULL;	566	dst->key_values = 0;
584		567
585	for (i = op2->key_values; i != NULL; i = i->next)	568	for (i = key_values; i; i = i->next)
586	{	569	{
587	key_value *new_link = new key_value;	570	key_value *new_link = new key_value;
588		571
589	new_link->next = NULL;	572	new_link->next = 0;
590	new_link->key = i->key;	573	new_link->key = i->key;
591	new_link->value = i->value;	574	new_link->value = i->value;
592		575
593	/* Try and be clever here, too. */	576	/* Try and be clever here, too. */
594	if (op->key_values == NULL)	577	if (!dst->key_values)
595	{	578	{
596	op->key_values = new_link;	579	dst->key_values = new_link;
597	tail = new_link;	580	tail = new_link;
598	}	581	}
599	else	582	else
600	{	583	{
601	tail->next = new_link;	584	tail->next = new_link;
602	tail = new_link;	585	tail = new_link;
603	}	586	}
604	}	587	}
605	}	588	}
606		589
607	update_ob_speed (op);	590	update_ob_speed (dst);
608	}
609
610	/*
611	* get_object() grabs an object from the list of unused objects, makes
612	* sure it is initialised, and returns it.
613	* If there are no free objects, expand_objects() is called to get more.
614	*/
615
616	object *get_object ()
617	{
618	object *op = new object;
619
620	op->count = ++ob_count;
621
622	op->active_next = 0;
623	op->active_prev = 0;
624
625	op->next = objects;
626	op->prev = 0;
627
628	if (objects)
629	objects->prev = op;
630
631	objects = op;
632
633	SET_FLAG (op, FLAG_REMOVED);
634
635	op->expmul = 1.0;
636	op->face = blank_face;
637	op->attacked_by_count = -1;
638
639	return op;
640	}	591	}
641		592
642	/*	593	/*
643	* If an object with the IS_TURNABLE() flag needs to be turned due	594	* If an object with the IS_TURNABLE() flag needs to be turned due
644	* to the closest player being on the other side, this function can	595	* to the closest player being on the other side, this function can
645	* be called to update the face variable, _and_ how it looks on the map.	596	* be called to update the face variable, _and_ how it looks on the map.
646	*/	597	*/
647		598
		599	void
648	void update_turn_face(object *op) {	600	update_turn_face (object *op)
		601	{
649	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	602	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
650	return;	603	return;
651	SET_ANIMATION(op, op->direction);	604	SET_ANIMATION (op, op->direction);
652	update_object(op,UP_OBJ_FACE);	605	update_object (op, UP_OBJ_FACE);
653	}	606	}
654		607
655	/*	608	/*
656	* Updates the speed of an object. If the speed changes from 0 to another	609	* Updates the speed of an object. If the speed changes from 0 to another
657	* value, or vice versa, then add/remove the object from the active list.	610	* value, or vice versa, then add/remove the object from the active list.
658	* This function needs to be called whenever the speed of an object changes.	611	* This function needs to be called whenever the speed of an object changes.
659	*/	612	*/
660		613	void
661	void update_ob_speed(object *op) {	614	update_ob_speed (object *op)
		615	{
662	extern int arch_init;	616	extern int arch_init;
663		617
664	/* No reason putting the archetypes objects on the speed list,	618	/* No reason putting the archetypes objects on the speed list,
665	* since they never really need to be updated.	619	* since they never really need to be updated.
666	*/	620	*/
667		621
668	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	622	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		623	{
669	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	624	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
670	#ifdef MANY_CORES	625	#ifdef MANY_CORES
671	abort();	626	abort ();
672	#else	627	#else
673	op->speed = 0;	628	op->speed = 0;
674	#endif	629	#endif
675	}	630	}
		631
676	if (arch_init) {	632	if (arch_init)
		633	return;
		634
		635	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		636	{
		637	/* If already on active list, don't do anything */
		638	if (op->active_next || op->active_prev || op == active_objects)
677	return;	639	return;
678	}
679	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
680	/* If already on active list, don't do anything */
681	if (op->active_next || op->active_prev || op==active_objects)
682	return;
683		640
684	/* process_events() expects us to insert the object at the beginning	641	/* process_events() expects us to insert the object at the beginning
685	* of the list. */	642	* of the list. */
686	op->active_next = active_objects;	643	op->active_next = active_objects;
		644
687	if (op->active_next!=NULL)	645	if (op->active_next != NULL)
688	op->active_next->active_prev = op;	646	op->active_next->active_prev = op;
		647
689	active_objects = op;	648	active_objects = op;
		649	}
		650	else
690	}	651	{
691	else {
692	/* If not on the active list, nothing needs to be done */	652	/* If not on the active list, nothing needs to be done */
693	if (!op->active_next && !op->active_prev && op!=active_objects)	653	if (!op->active_next && !op->active_prev && op != active_objects)
694	return;	654	return;
695		655
696	if (op->active_prev==NULL) {	656	if (op->active_prev == NULL)
		657	{
697	active_objects = op->active_next;	658	active_objects = op->active_next;
		659
698	if (op->active_next!=NULL)	660	if (op->active_next != NULL)
699	op->active_next->active_prev = NULL;	661	op->active_next->active_prev = NULL;
		662	}
		663	else
700	}	664	{
701	else {
702	op->active_prev->active_next = op->active_next;	665	op->active_prev->active_next = op->active_next;
		666
703	if (op->active_next)	667	if (op->active_next)
704	op->active_next->active_prev = op->active_prev;	668	op->active_next->active_prev = op->active_prev;
705	}	669	}
		670
706	op->active_next = NULL;	671	op->active_next = NULL;
707	op->active_prev = NULL;	672	op->active_prev = NULL;
708	}	673	}
709	}	674	}
710		675
711	/* This function removes object 'op' from the list of active	676	/* This function removes object 'op' from the list of active
712	* objects.	677	* objects.
…		…
714	* reference maps where you don't want an object that isn't	679	* reference maps where you don't want an object that isn't
715	* in play chewing up cpu time getting processed.	680	* in play chewing up cpu time getting processed.
716	* The reverse of this is to call update_ob_speed, which	681	* The reverse of this is to call update_ob_speed, which
717	* will do the right thing based on the speed of the object.	682	* will do the right thing based on the speed of the object.
718	*/	683	*/
		684	void
719	void remove_from_active_list(object *op)	685	remove_from_active_list (object *op)
720	{	686	{
721	/* If not on the active list, nothing needs to be done */	687	/* If not on the active list, nothing needs to be done */
722	if (!op->active_next && !op->active_prev && op!=active_objects)	688	if (!op->active_next && !op->active_prev && op != active_objects)
723	return;	689	return;
724		690
725	if (op->active_prev==NULL) {	691	if (op->active_prev == NULL)
		692	{
726	active_objects = op->active_next;	693	active_objects = op->active_next;
727	if (op->active_next!=NULL)	694	if (op->active_next != NULL)
728	op->active_next->active_prev = NULL;	695	op->active_next->active_prev = NULL;
		696	}
		697	else
729	}	698	{
730	else {
731	op->active_prev->active_next = op->active_next;	699	op->active_prev->active_next = op->active_next;
732	if (op->active_next)	700	if (op->active_next)
733	op->active_next->active_prev = op->active_prev;	701	op->active_next->active_prev = op->active_prev;
734	}	702	}
735	op->active_next = NULL;	703	op->active_next = NULL;
736	op->active_prev = NULL;	704	op->active_prev = NULL;
737	}	705	}
738		706
739	/*	707	/*
740	* update_object() updates the array which represents the map.	708	* update_object() updates the array which represents the map.
741	* It takes into account invisible objects (and represent squares covered	709	* It takes into account invisible objects (and represent squares covered
…		…
756	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	724	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
757	* as that is easier than trying to look at what may have changed.	725	* as that is easier than trying to look at what may have changed.
758	* UP_OBJ_FACE: only the objects face has changed.	726	* UP_OBJ_FACE: only the objects face has changed.
759	*/	727	*/
760		728
		729	void
761	void update_object(object *op, int action) {	730	update_object (object *op, int action)
		731	{
762	int update_now=0, flags;	732	int update_now = 0, flags;
763	MoveType move_on, move_off, move_block, move_slow;	733	MoveType move_on, move_off, move_block, move_slow;
764		734
765	if (op == NULL) {	735	if (op == NULL)
		736	{
766	/* this should never happen */	737	/* this should never happen */
767	LOG(llevDebug,"update_object() called for NULL object.\n");	738	LOG (llevDebug, "update_object() called for NULL object.\n");
768	return;	739	return;
769	}
770		740	}
		741
771	if(op->env!=NULL) {	742	if (op->env != NULL)
		743	{
772	/* Animation is currently handled by client, so nothing	744	/* Animation is currently handled by client, so nothing
773	* to do in this case.	745	* to do in this case.
774	*/	746	*/
775	return;	747	return;
776	}	748	}
777		749
778	/* If the map is saving, don't do anything as everything is	750	/* If the map is saving, don't do anything as everything is
779	* going to get freed anyways.	751	* going to get freed anyways.
780	*/	752	*/
781	if (!op->map || op->map->in_memory == MAP_SAVING) return;	753	if (!op->map || op->map->in_memory == MAP_SAVING)
782		754	return;
		755
783	/* make sure the object is within map boundaries */	756	/* make sure the object is within map boundaries */
784	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	757	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
785	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	758	{
786	LOG(llevError,"update_object() called for object out of map!\n");	759	LOG (llevError, "update_object() called for object out of map!\n");
787	#ifdef MANY_CORES	760	#ifdef MANY_CORES
788	abort();	761	abort ();
789	#endif	762	#endif
790	return;	763	return;
791	}
792		764	}
		765
793	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	766	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
794	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	767	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
795	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	768	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
796	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	769	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
797	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	770	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
798	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);	771	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
799		772
800	if (action == UP_OBJ_INSERT) {	773	if (action == UP_OBJ_INSERT)
		774	{
801	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	775	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
802	update_now=1;	776	update_now = 1;
803		777
804	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	778	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
805	update_now=1;	779	update_now = 1;
806		780
807	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	781	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
808	update_now=1;	782	update_now = 1;
809		783
810	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	784	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
811	update_now=1;	785	update_now = 1;
812		786
		787	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		788	update_now = 1;
		789
813	if ((move_on | op->move_on) != move_on) update_now=1;	790	if ((move_on | op->move_on) != move_on)
		791	update_now = 1;
		792
814	if ((move_off | op->move_off) != move_off) update_now=1;	793	if ((move_off | op->move_off) != move_off)
		794	update_now = 1;
		795
815	/* This isn't perfect, but I don't expect a lot of objects to	796	/* This isn't perfect, but I don't expect a lot of objects to
816	* to have move_allow right now.	797	* to have move_allow right now.
817	*/	798	*/
818	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	799	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
819	update_now=1;	800	update_now = 1;
		801
820	if ((move_slow | op->move_slow) != move_slow) update_now=1;	802	if ((move_slow | op->move_slow) != move_slow)
		803	update_now = 1;
821	}	804	}
		805
822	/* if the object is being removed, we can't make intelligent	806	/* if the object is being removed, we can't make intelligent
823	* decisions, because remove_ob can't really pass the object	807	* decisions, because remove_ob can't really pass the object
824	* that is being removed.	808	* that is being removed.
825	*/	809	*/
826	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	810	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
827	update_now=1;	811	update_now = 1;
828	} else if (action == UP_OBJ_FACE) {	812	else if (action == UP_OBJ_FACE)
829	/* Nothing to do for that case */	813	/* Nothing to do for that case */ ;
830	}
831	else {	814	else
832	LOG(llevError,"update_object called with invalid action: %d\n", action);	815	LOG (llevError, "update_object called with invalid action: %d\n", action);
833	}
834		816
835	if (update_now) {	817	if (update_now)
		818	{
836	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	819	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
837	update_position(op->map, op->x, op->y);	820	update_position (op->map, op->x, op->y);
838	}	821	}
839		822
840	if(op->more!=NULL)	823	if (op->more != NULL)
841	update_object(op->more, action);	824	update_object (op->more, action);
842	}	825	}
843		826
		827	object::vector object::mortals;
		828	object::vector object::objects; // not yet used
		829	object *object::first;
		830
		831	void object::free_mortals ()
		832	{
		833	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		834	if ((*i)->refcnt)
		835	++i; // further delay freeing
		836	else
		837	{
		838	delete *i;
		839	mortals.erase (i);
		840	}
		841	}
		842
		843	object::object ()
		844	{
		845	SET_FLAG (this, FLAG_REMOVED);
		846
		847	expmul = 1.0;
		848	face = blank_face;
		849	}
		850
		851	object::~object ()
		852	{
		853	free_key_values (this);
		854	}
		855
		856	void object::link ()
		857	{
		858	count = ++ob_count;
		859	uuid = gen_uuid ();
		860
		861	prev = 0;
		862	next = object::first;
		863
		864	if (object::first)
		865	object::first->prev = this;
		866
		867	object::first = this;
		868	}
		869
		870	void object::unlink ()
		871	{
		872	if (this == object::first)
		873	object::first = next;
		874
		875	/* Remove this object from the list of used objects */
		876	if (prev) prev->next = next;
		877	if (next) next->prev = prev;
		878
		879	prev = 0;
		880	next = 0;
		881	}
		882
		883	object *object::create ()
		884	{
		885	object *op = new object;
		886	op->link ();
		887	return op;
		888	}
844		889
845	/*	890	/*
846	* free_object() frees everything allocated by an object, removes	891	* free_object() frees everything allocated by an object, removes
847	* it from the list of used objects, and puts it on the list of	892	* it from the list of used objects, and puts it on the list of
848	* free objects. The IS_FREED() flag is set in the object.	893	* free objects. The IS_FREED() flag is set in the object.
849	* The object must have been removed by remove_ob() first for	894	* The object must have been removed by remove_ob() first for
850	* this function to succeed.	895	* this function to succeed.
851	*	896	*
852	* If free_inventory is set, free inventory as well. Else drop items in	897	* If destroy_inventory is set, free inventory as well. Else drop items in
853	* inventory to the ground.	898	* inventory to the ground.
854	*/	899	*/
855		900	void object::destroy (bool destroy_inventory)
856	void
857	free_object (object * ob)
858	{	901	{
859	free_object2 (ob, 0);
860	}
861
862	void
863	free_object2 (object * ob, int free_inventory)
864	{
865	object *tmp, *op;
866
867	if (!QUERY_FLAG (ob, FLAG_REMOVED))	902	if (QUERY_FLAG (this, FLAG_FREED))
868	{	903	return;
869	LOG (llevDebug, "Free object called with non removed object\n");
870	dump_object (ob);
871	#ifdef MANY_CORES
872	abort ();
873	#endif
874	}
875		904
876	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	905	if (QUERY_FLAG (this, FLAG_FRIENDLY))
877	{
878	LOG (llevMonster, "Warning: tried to free friendly object.\n");
879	remove_friendly_object (ob);	906	remove_friendly_object (this);
880	}
881		907
882	if (QUERY_FLAG (ob, FLAG_FREED))	908	if (!QUERY_FLAG (this, FLAG_REMOVED))
883	{	909	remove ();
884	dump_object (ob);	910
885	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	911	SET_FLAG (this, FLAG_FREED);
886	return;	912
		913	if (more)
887	}	914	{
888		915	more->destroy (destroy_inventory);
889	if (ob->more != NULL)	916	more = 0;
890	{	917	}
891	free_object2 (ob->more, free_inventory);
892	ob->more = NULL;
893	}
894		918
895	if (ob->inv)	919	if (inv)
896	{	920	{
897	/* Only if the space blocks everything do we not process -	921	/* Only if the space blocks everything do we not process -
898	* if some form of movemnt is allowed, let objects	922	* if some form of movement is allowed, let objects
899	* drop on that space.	923	* drop on that space.
900	*/	924	*/
901	if (free_inventory || ob->map == NULL	925	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
902	|| ob->map->in_memory != MAP_IN_MEMORY	926	{
903	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))	927	object *op = inv;
904	{
905	op = ob->inv;
906		928
907	while (op != NULL)	929	while (op)
908	{	930	{
909	tmp = op->below;	931	object *tmp = op->below;
910	remove_ob (op);	932	op->destroy (destroy_inventory);
911	free_object2 (op, free_inventory);
912	op = tmp;	933	op = tmp;
913	}	934	}
914	}	935	}
915	else	936	else
916	{ /* Put objects in inventory onto this space */	937	{ /* Put objects in inventory onto this space */
917	op = ob->inv;	938	object *op = inv;
918		939
919	while (op != NULL)	940	while (op)
920	{	941	{
921	tmp = op->below;	942	object *tmp = op->below;
922	remove_ob (op);
923		943
		944	op->remove ();
		945
924	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	946	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
925	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	947	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
926	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	948	op->destroy ();
927	free_object (op);	949	else
928	else	950	{
929	{	951	op->x = x;
930	op->x = ob->x;	952	op->y = y;
931	op->y = ob->y;
932	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */	953	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
933	}	954	}
934		955
935	op = tmp;	956	op = tmp;
		957	}
		958	}
936	}	959	}
937	}	960
		961	// hack to ensure that freed objects still have a valid map
		962	{
		963	static maptile *freed_map; // freed objects are moved here to avoid crashes
		964
		965	if (!freed_map)
		966	{
		967	freed_map = new maptile;
		968
		969	freed_map->name = "/internal/freed_objects_map";
		970	freed_map->width = 3;
		971	freed_map->height = 3;
		972
		973	freed_map->allocate ();
938	}	974	}
		975
		976	map = freed_map;
		977	x = 1;
		978	y = 1;
		979	}
		980
		981	// clear those pointers that likely might have circular references to us
		982	owner = 0;
		983	enemy = 0;
		984	attacked_by = 0;
		985
		986	// only relevant for players(?), but make sure of it anyways
		987	contr = 0;
939		988
940	/* Remove object from the active list */	989	/* Remove object from the active list */
941	ob->speed = 0;	990	speed = 0;
942	update_ob_speed (ob);	991	update_ob_speed (this);
943		992
944	SET_FLAG (ob, FLAG_FREED);	993	unlink ();
945	ob->count = 0;
946		994
947	/* Remove this object from the list of used objects */	995	mortals.push_back (this);
948	if (ob->prev == NULL)
949	{
950	objects = ob->next;
951
952	if (objects != NULL)
953	objects->prev = NULL;
954	}
955	else
956	{
957	ob->prev->next = ob->next;
958
959	if (ob->next != NULL)
960	ob->next->prev = ob->prev;
961	}
962
963	free_key_values (ob);
964
965	/* Now link it with the free_objects list: */
966	ob->prev = 0;
967	ob->next = 0;
968
969	delete ob;
970	}	996	}
971		997
972	/*	998	/*
973	* sub_weight() recursively (outwards) subtracts a number from the	999	* sub_weight() recursively (outwards) subtracts a number from the
974	* weight of an object (and what is carried by it's environment(s)).	1000	* weight of an object (and what is carried by it's environment(s)).
975	*/	1001	*/
976		1002	void
977	void sub_weight (object *op, signed long weight) {	1003	sub_weight (object *op, signed long weight)
		1004	{
978	while (op != NULL) {	1005	while (op != NULL)
		1006	{
979	if (op->type == CONTAINER) {	1007	if (op->type == CONTAINER)
980	weight=(signed long)(weight*(100-op->stats.Str)/100);	1008	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
981	}	1009
982	op->carrying-=weight;	1010	op->carrying -= weight;
983	op = op->env;	1011	op = op->env;
984	}	1012	}
985	}	1013	}
986		1014
987	/* remove_ob(op):	1015	/* op->remove ():
988	* This function removes the object op from the linked list of objects	1016	* This function removes the object op from the linked list of objects
989	* which it is currently tied to. When this function is done, the	1017	* which it is currently tied to. When this function is done, the
990	* object will have no environment. If the object previously had an	1018	* object will have no environment. If the object previously had an
991	* environment, the x and y coordinates will be updated to	1019	* environment, the x and y coordinates will be updated to
992	* the previous environment.	1020	* the previous environment.
993	* Beware: This function is called from the editor as well!	1021	* Beware: This function is called from the editor as well!
994	*/	1022	*/
995		1023	void
996	void remove_ob(object *op) {	1024	object::remove ()
		1025	{
997	object *tmp,*last=NULL;	1026	object *tmp, *last = 0;
998	object *otmp;	1027	object *otmp;
999	tag_t tag;	1028
1000	int check_walk_off;	1029	int check_walk_off;
1001	mapstruct *m;
1002	sint16 x,y;
1003
1004		1030
1005	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1031	if (QUERY_FLAG (this, FLAG_REMOVED))
1006	dump_object(op);	1032	return;
1007	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1008		1033
1009	/* Changed it to always dump core in this case. As has been learned
1010	* in the past, trying to recover from errors almost always
1011	* make things worse, and this is a real error here - something
1012	* that should not happen.
1013	* Yes, if this was a mission critical app, trying to do something
1014	* to recover may make sense, but that is because failure of the app
1015	* may have other disastrous problems. Cf runs out of a script
1016	* so is easily enough restarted without any real problems.
1017	* MSW 2001-07-01
1018	*/
1019	abort();
1020	}
1021	if(op->more!=NULL)
1022	remove_ob(op->more);
1023
1024	SET_FLAG(op, FLAG_REMOVED);	1034	SET_FLAG (this, FLAG_REMOVED);
1025		1035
		1036	if (more)
		1037	more->remove ();
		1038
1026	/*	1039	/*
1027	* In this case, the object to be removed is in someones	1040	* In this case, the object to be removed is in someones
1028	* inventory.	1041	* inventory.
1029	*/	1042	*/
1030	if(op->env!=NULL) {	1043	if (env)
		1044	{
1031	if(op->nrof)	1045	if (nrof)
1032	sub_weight(op->env, op->weight*op->nrof);	1046	sub_weight (env, weight * nrof);
1033	else	1047	else
1034	sub_weight(op->env, op->weight+op->carrying);	1048	sub_weight (env, weight + carrying);
1035		1049
1036	/* NO_FIX_PLAYER is set when a great many changes are being	1050	/* NO_FIX_PLAYER is set when a great many changes are being
1037	* made to players inventory. If set, avoiding the call	1051	* made to players inventory. If set, avoiding the call
1038	* to save cpu time.	1052	* to save cpu time.
1039	*/	1053	*/
1040	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1054	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1041	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1042	fix_player(otmp);	1055	fix_player (otmp);
1043		1056
1044	if(op->above!=NULL)	1057	if (above != NULL)
1045	op->above->below=op->below;	1058	above->below = below;
1046	else	1059	else
1047	op->env->inv=op->below;	1060	env->inv = below;
1048		1061
1049	if(op->below!=NULL)	1062	if (below != NULL)
1050	op->below->above=op->above;	1063	below->above = above;
1051		1064
1052	/* we set up values so that it could be inserted into	1065	/* we set up values so that it could be inserted into
1053	* the map, but we don't actually do that - it is up	1066	* the map, but we don't actually do that - it is up
1054	* to the caller to decide what we want to do.	1067	* to the caller to decide what we want to do.
		1068	*/
		1069	x = env->x, y = env->y;
		1070	map = env->map;
		1071	above = 0, below = 0;
		1072	env = 0;
		1073	}
		1074	else if (map)
		1075	{
		1076	/* Re did the following section of code - it looks like it had
		1077	* lots of logic for things we no longer care about
		1078	*/
		1079
		1080	/* link the object above us */
		1081	if (above)
		1082	above->below = below;
		1083	else
		1084	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
		1085
		1086	/* Relink the object below us, if there is one */
		1087	if (below)
		1088	below->above = above;
		1089	else
		1090	{
		1091	/* Nothing below, which means we need to relink map object for this space
		1092	* use translated coordinates in case some oddness with map tiling is
		1093	* evident
1055	*/	1094	*/
1056	op->x=op->env->x,op->y=op->env->y;	1095	if (GET_MAP_OB (map, x, y) != this)
1057	op->map=op->env->map;	1096	{
1058	op->above=NULL,op->below=NULL;	1097	char *dump = dump_object (this);
1059	op->env=NULL;	1098	LOG (llevError,
		1099	"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);
		1100	free (dump);
		1101	dump = dump_object (GET_MAP_OB (map, x, y));
		1102	LOG (llevError, "%s\n", dump);
		1103	free (dump);
		1104	}
		1105
		1106	SET_MAP_OB (map, x, y, above); /* goes on above it. */
		1107	}
		1108
		1109	above = 0;
		1110	below = 0;
		1111
		1112	if (map->in_memory == MAP_SAVING)
1060	return;	1113	return;
1061	}
1062		1114
1063	/* If we get here, we are removing it from a map */
1064	if (op->map == NULL) return;
1065
1066	x = op->x;
1067	y = op->y;
1068	m = get_map_from_coord(op->map, &x, &y);
1069
1070	if (!m) {
1071	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1072	op->map->path, op->x, op->y);
1073	/* in old days, we used to set x and y to 0 and continue.
1074	* it seems if we get into this case, something is probablye
1075	* screwed up and should be fixed.
1076	*/
1077	abort();
1078	}
1079	if (op->map != m) {
1080	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1081	op->map->path, m->path, op->x, op->y, x, y);
1082	}
1083
1084	/* Re did the following section of code - it looks like it had
1085	* lots of logic for things we no longer care about
1086	*/
1087
1088	/* link the object above us */
1089	if (op->above)
1090	op->above->below=op->below;
1091	else
1092	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1093
1094	/* Relink the object below us, if there is one */
1095	if(op->below) {
1096	op->below->above=op->above;
1097	} else {
1098	/* Nothing below, which means we need to relink map object for this space
1099	* use translated coordinates in case some oddness with map tiling is
1100	* evident
1101	*/
1102	if(GET_MAP_OB(m,x,y)!=op) {
1103	dump_object(op);
1104	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);
1105	dump_object(GET_MAP_OB(m,x,y));
1106	LOG(llevError,"%s\n",errmsg);
1107	}
1108	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1109	}
1110	op->above=NULL;
1111	op->below=NULL;
1112
1113	if (op->map->in_memory == MAP_SAVING)
1114	return;
1115
1116	tag = op->count;
1117	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1115	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1116
1118	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1117	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1118	{
1119	/* No point updating the players look faces if he is the object	1119	/* No point updating the players look faces if he is the object
1120	* being removed.	1120	* being removed.
1121	*/	1121	*/
1122		1122
1123	if(tmp->type==PLAYER && tmp!=op) {	1123	if (tmp->type == PLAYER && tmp != this)
		1124	{
1124	/* If a container that the player is currently using somehow gets	1125	/* If a container that the player is currently using somehow gets
1125	* removed (most likely destroyed), update the player view	1126	* removed (most likely destroyed), update the player view
1126	* appropriately.	1127	* appropriately.
1127	*/	1128	*/
1128	if (tmp->container==op) {	1129	if (tmp->container == this)
		1130	{
1129	CLEAR_FLAG(op, FLAG_APPLIED);	1131	CLEAR_FLAG (this, FLAG_APPLIED);
1130	tmp->container=NULL;	1132	tmp->container = 0;
		1133	}
		1134
		1135	tmp->contr->socket.update_look = 1;
1131	}	1136	}
1132	tmp->contr->socket.update_look=1;	1137
1133	}
1134	/* See if player moving off should effect something */	1138	/* See if player moving off should effect something */
1135	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1139	if (check_walk_off
		1140	&& ((move_type & tmp->move_off)
1136	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1141	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1137		1142	{
1138	move_apply(tmp, op, NULL);	1143	move_apply (tmp, this, 0);
		1144
1139	if (was_destroyed (op, tag)) {	1145	if (destroyed ())
1140	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1146	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1141	"leaving object\n", &tmp->name, &tmp->arch->name);
1142	}	1147	}
1143	}
1144		1148
1145	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1149	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1146		1150
1147	if(tmp->above == tmp)	1151	if (tmp->above == tmp)
1148	tmp->above = NULL;	1152	tmp->above = 0;
		1153
1149	last=tmp;	1154	last = tmp;
1150	}	1155	}
		1156
1151	/* last == NULL of there are no objects on this space */	1157	/* last == NULL of there are no objects on this space */
1152	if (last==NULL) {	1158	if (!last)
		1159	{
1153	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1160	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1154	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1161	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1155	* those out anyways, and if there are any flags set right now, they won't	1162	* those out anyways, and if there are any flags set right now, they won't
1156	* be correct anyways.	1163	* be correct anyways.
1157	*/	1164	*/
1158	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1165	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1159	update_position(op->map, op->x, op->y);	1166	update_position (map, x, y);
1160	}	1167	}
1161	else	1168	else
1162	update_object(last, UP_OBJ_REMOVE);	1169	update_object (last, UP_OBJ_REMOVE);
1163		1170
1164	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1171	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1165	update_all_los(op->map, op->x, op->y);	1172	update_all_los (map, x, y);
1166		1173	}
1167	}	1174	}
1168		1175
1169	/*	1176	/*
1170	* merge_ob(op,top):	1177	* merge_ob(op,top):
1171	*	1178	*
1172	* This function goes through all objects below and including top, and	1179	* This function goes through all objects below and including top, and
1173	* merges op to the first matching object.	1180	* merges op to the first matching object.
1174	* If top is NULL, it is calculated.	1181	* If top is NULL, it is calculated.
1175	* Returns pointer to object if it succeded in the merge, otherwise NULL	1182	* Returns pointer to object if it succeded in the merge, otherwise NULL
1176	*/	1183	*/
1177		1184	object *
1178	object *merge_ob(object *op, object *top) {	1185	merge_ob (object *op, object *top)
		1186	{
1179	if(!op->nrof)	1187	if (!op->nrof)
1180	return 0;	1188	return 0;
		1189
1181	if(top==NULL)	1190	if (top == NULL)
1182	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1191	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1192
1183	for(;top!=NULL;top=top->below) {	1193	for (; top != NULL; top = top->below)
		1194	{
1184	if(top==op)	1195	if (top == op)
1185	continue;	1196	continue;
1186	if (CAN_MERGE(op,top))	1197	if (CAN_MERGE (op, top))
1187	{	1198	{
1188	top->nrof+=op->nrof;	1199	top->nrof += op->nrof;
		1200
1189	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1201	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1190	op->weight = 0; /* Don't want any adjustements now */	1202	op->weight = 0; /* Don't want any adjustements now */
1191	remove_ob(op);	1203	op->destroy ();
1192	free_object(op);
1193	return top;	1204	return top;
1194	}	1205	}
1195	}	1206	}
		1207
1196	return NULL;	1208	return 0;
1197	}	1209	}
1198		1210
1199	/*	1211	/*
1200	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1212	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1201	* job preparing multi-part monsters	1213	* job preparing multi-part monsters
1202	*/	1214	*/
		1215	object *
1203	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1216	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1217	{
1204	object* tmp;	1218	object *tmp;
		1219
1205	if (op->head)	1220	if (op->head)
1206	op=op->head;	1221	op = op->head;
		1222
1207	for (tmp=op;tmp;tmp=tmp->more){	1223	for (tmp = op; tmp; tmp = tmp->more)
		1224	{
1208	tmp->x=x+tmp->arch->clone.x;	1225	tmp->x = x + tmp->arch->clone.x;
1209	tmp->y=y+tmp->arch->clone.y;	1226	tmp->y = y + tmp->arch->clone.y;
1210	}	1227	}
		1228
1211	return insert_ob_in_map (op, m, originator, flag);	1229	return insert_ob_in_map (op, m, originator, flag);
1212	}	1230	}
1213		1231
1214	/*	1232	/*
1215	* insert_ob_in_map (op, map, originator, flag):	1233	* insert_ob_in_map (op, map, originator, flag):
1216	* This function inserts the object in the two-way linked list	1234	* This function inserts the object in the two-way linked list
…		…
1230	* new object if 'op' was merged with other object	1248	* new object if 'op' was merged with other object
1231	* NULL if 'op' was destroyed	1249	* NULL if 'op' was destroyed
1232	* just 'op' otherwise	1250	* just 'op' otherwise
1233	*/	1251	*/
1234		1252
		1253	object *
1235	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1254	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1236	{	1255	{
1237	object *tmp, *top, *floor=NULL;	1256	object *tmp, *top, *floor = NULL;
1238	sint16 x,y;	1257	sint16 x, y;
1239		1258
1240	if (QUERY_FLAG (op, FLAG_FREED)) {	1259	if (QUERY_FLAG (op, FLAG_FREED))
		1260	{
1241	LOG (llevError, "Trying to insert freed object!\n");	1261	LOG (llevError, "Trying to insert freed object!\n");
		1262	return NULL;
		1263	}
		1264
		1265	if (m == NULL)
		1266	{
		1267	char *dump = dump_object (op);
		1268	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1269	free (dump);
		1270	return op;
		1271	}
		1272
		1273	if (out_of_map (m, op->x, op->y))
		1274	{
		1275	char *dump = dump_object (op);
		1276	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
		1277	#ifdef MANY_CORES
		1278	/* Better to catch this here, as otherwise the next use of this object
		1279	* is likely to cause a crash. Better to find out where it is getting
		1280	* improperly inserted.
		1281	*/
		1282	abort ();
		1283	#endif
		1284	free (dump);
		1285	return op;
		1286	}
		1287
		1288	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1289	{
		1290	char *dump = dump_object (op);
		1291	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1292	free (dump);
		1293	return op;
		1294	}
		1295
		1296	if (op->more != NULL)
		1297	{
		1298	/* The part may be on a different map. */
		1299
		1300	object *more = op->more;
		1301
		1302	/* We really need the caller to normalize coordinates - if
		1303	* we set the map, that doesn't work if the location is within
		1304	* a map and this is straddling an edge. So only if coordinate
		1305	* is clear wrong do we normalize it.
		1306	*/
		1307	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1308	more->map = get_map_from_coord (m, &more->x, &more->y);
		1309	else if (!more->map)
		1310	{
		1311	/* For backwards compatibility - when not dealing with tiled maps,
		1312	* more->map should always point to the parent.
		1313	*/
		1314	more->map = m;
		1315	}
		1316
		1317	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1318	{
		1319	if (!op->head)
		1320	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1321
		1322	return NULL;
		1323	}
		1324	}
		1325
		1326	CLEAR_FLAG (op, FLAG_REMOVED);
		1327
		1328	/* Ideally, the caller figures this out. However, it complicates a lot
		1329	* of areas of callers (eg, anything that uses find_free_spot would now
		1330	* need extra work
		1331	*/
		1332	op->map = get_map_from_coord (m, &op->x, &op->y);
		1333	x = op->x;
		1334	y = op->y;
		1335
		1336	/* this has to be done after we translate the coordinates.
		1337	*/
		1338	if (op->nrof && !(flag & INS_NO_MERGE))
		1339	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1340	if (CAN_MERGE (op, tmp))
		1341	{
		1342	op->nrof += tmp->nrof;
		1343	tmp->destroy ();
		1344	}
		1345
		1346	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1347	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1348
		1349	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1350	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1351
		1352	if (flag & INS_BELOW_ORIGINATOR)
		1353	{
		1354	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1355	{
		1356	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1357	abort ();
		1358	}
		1359
		1360	op->above = originator;
		1361	op->below = originator->below;
		1362
		1363	if (op->below)
		1364	op->below->above = op;
		1365	else
		1366	SET_MAP_OB (op->map, op->x, op->y, op);
		1367
		1368	/* since *below* originator, no need to update top */
		1369	originator->below = op;
		1370	}
		1371	else
		1372	{
		1373	/* If there are other objects, then */
		1374	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1375	{
		1376	object *last = NULL;
		1377
		1378	/*
		1379	* If there are multiple objects on this space, we do some trickier handling.
		1380	* We've already dealt with merging if appropriate.
		1381	* Generally, we want to put the new object on top. But if
		1382	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1383	* floor, we want to insert above that and no further.
		1384	* Also, if there are spell objects on this space, we stop processing
		1385	* once we get to them. This reduces the need to traverse over all of
		1386	* them when adding another one - this saves quite a bit of cpu time
		1387	* when lots of spells are cast in one area. Currently, it is presumed
		1388	* that flying non pickable objects are spell objects.
		1389	*/
		1390
		1391	while (top != NULL)
		1392	{
		1393	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1394	floor = top;
		1395
		1396	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1397	{
		1398	/* We insert above top, so we want this object below this */
		1399	top = top->below;
		1400	break;
		1401	}
		1402
		1403	last = top;
		1404	top = top->above;
		1405	}
		1406
		1407	/* Don't want top to be NULL, so set it to the last valid object */
		1408	top = last;
		1409
		1410	/* We let update_position deal with figuring out what the space
		1411	* looks like instead of lots of conditions here.
		1412	* makes things faster, and effectively the same result.
		1413	*/
		1414
		1415	/* Have object 'fall below' other objects that block view.
		1416	* Unless those objects are exits, type 66
		1417	* If INS_ON_TOP is used, don't do this processing
		1418	* Need to find the object that in fact blocks view, otherwise
		1419	* stacking is a bit odd.
		1420	*/
		1421	if (!(flag & INS_ON_TOP) &&
		1422	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1423	{
		1424	for (last = top; last != floor; last = last->below)
		1425	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1426	break;
		1427	/* Check to see if we found the object that blocks view,
		1428	* and make sure we have a below pointer for it so that
		1429	* we can get inserted below this one, which requires we
		1430	* set top to the object below us.
		1431	*/
		1432	if (last && last->below && last != floor)
		1433	top = last->below;
		1434	}
		1435	} /* If objects on this space */
		1436
		1437	if (flag & INS_MAP_LOAD)
		1438	top = GET_MAP_TOP (op->map, op->x, op->y);
		1439
		1440	if (flag & INS_ABOVE_FLOOR_ONLY)
		1441	top = floor;
		1442
		1443	/* Top is the object that our object (op) is going to get inserted above.
		1444	*/
		1445
		1446	/* First object on this space */
		1447	if (!top)
		1448	{
		1449	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1450
		1451	if (op->above)
		1452	op->above->below = op;
		1453
		1454	op->below = NULL;
		1455	SET_MAP_OB (op->map, op->x, op->y, op);
		1456	}
		1457	else
		1458	{ /* get inserted into the stack above top */
		1459	op->above = top->above;
		1460
		1461	if (op->above)
		1462	op->above->below = op;
		1463
		1464	op->below = top;
		1465	top->above = op;
		1466	}
		1467
		1468	if (op->above == NULL)
		1469	SET_MAP_TOP (op->map, op->x, op->y, op);
		1470	} /* else not INS_BELOW_ORIGINATOR */
		1471
		1472	if (op->type == PLAYER)
		1473	op->contr->do_los = 1;
		1474
		1475	/* If we have a floor, we know the player, if any, will be above
		1476	* it, so save a few ticks and start from there.
		1477	*/
		1478	if (!(flag & INS_MAP_LOAD))
		1479	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1480	if (tmp->type == PLAYER)
		1481	tmp->contr->socket.update_look = 1;
		1482
		1483	/* If this object glows, it may affect lighting conditions that are
		1484	* visible to others on this map. But update_all_los is really
		1485	* an inefficient way to do this, as it means los for all players
		1486	* on the map will get recalculated. The players could very well
		1487	* be far away from this change and not affected in any way -
		1488	* this should get redone to only look for players within range,
		1489	* or just updating the P_NEED_UPDATE for spaces within this area
		1490	* of effect may be sufficient.
		1491	*/
		1492	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1493	update_all_los (op->map, op->x, op->y);
		1494
		1495	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1496	update_object (op, UP_OBJ_INSERT);
		1497
		1498	/* Don't know if moving this to the end will break anything. However,
		1499	* we want to have update_look set above before calling this.
		1500	*
		1501	* check_move_on() must be after this because code called from
		1502	* check_move_on() depends on correct map flags (so functions like
		1503	* blocked() and wall() work properly), and these flags are updated by
		1504	* update_object().
		1505	*/
		1506
		1507	/* if this is not the head or flag has been passed, don't check walk on status */
		1508	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1509	{
		1510	if (check_move_on (op, originator))
1242	return NULL;	1511	return NULL;
1243	}
1244	if(m==NULL) {
1245	dump_object(op);
1246	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1247	return op;
1248	}
1249	if(out_of_map(m,op->x,op->y)) {
1250	dump_object(op);
1251	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1252	#ifdef MANY_CORES
1253	/* Better to catch this here, as otherwise the next use of this object
1254	* is likely to cause a crash. Better to find out where it is getting
1255	* improperly inserted.
1256	*/
1257	abort();
1258	#endif
1259	return op;
1260	}
1261	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1262	dump_object(op);
1263	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1264	return op;
1265	}
1266	if(op->more!=NULL) {
1267	/* The part may be on a different map. */
1268		1512
1269	object *more = op->more;
1270
1271	/* We really need the caller to normalize coordinates - if
1272	* we set the map, that doesn't work if the location is within
1273	* a map and this is straddling an edge. So only if coordinate
1274	* is clear wrong do we normalize it.
1275	*/
1276	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1277	more->map = get_map_from_coord(m, &more->x, &more->y);
1278	} else if (!more->map) {
1279	/* For backwards compatibility - when not dealing with tiled maps,
1280	* more->map should always point to the parent.
1281	*/
1282	more->map = m;
1283	}
1284
1285	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1286	if ( ! op->head)
1287	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1288	return NULL;
1289	}
1290	}
1291	CLEAR_FLAG(op,FLAG_REMOVED);
1292
1293	/* Ideally, the caller figures this out. However, it complicates a lot
1294	* of areas of callers (eg, anything that uses find_free_spot would now
1295	* need extra work
1296	*/
1297	op->map=get_map_from_coord(m, &op->x, &op->y);
1298	x = op->x;
1299	y = op->y;
1300
1301	/* this has to be done after we translate the coordinates.
1302	*/
1303	if(op->nrof && !(flag & INS_NO_MERGE)) {
1304	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)
1305	if (CAN_MERGE(op,tmp)) {
1306	op->nrof+=tmp->nrof;
1307	remove_ob(tmp);
1308	free_object(tmp);
1309	}
1310	}
1311
1312	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1313	CLEAR_FLAG(op, FLAG_INV_LOCKED);
1314	if (!QUERY_FLAG(op, FLAG_ALIVE))
1315	CLEAR_FLAG(op, FLAG_NO_STEAL);
1316
1317	if (flag & INS_BELOW_ORIGINATOR) {
1318	if (originator->map != op->map || originator->x != op->x ||
1319	originator->y != op->y) {
1320	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1321	abort();
1322	}
1323	op->above = originator;
1324	op->below = originator->below;
1325	if (op->below) op->below->above = op;
1326	else SET_MAP_OB(op->map, op->x, op->y, op);
1327	/* since *below* originator, no need to update top */
1328	originator->below = op;
1329	} else {
1330	/* If there are other objects, then */
1331	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1332	object *last=NULL;
1333	/*
1334	* If there are multiple objects on this space, we do some trickier handling.
1335	* We've already dealt with merging if appropriate.
1336	* Generally, we want to put the new object on top. But if
1337	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1338	* floor, we want to insert above that and no further.
1339	* Also, if there are spell objects on this space, we stop processing
1340	* once we get to them. This reduces the need to traverse over all of
1341	* them when adding another one - this saves quite a bit of cpu time
1342	* when lots of spells are cast in one area. Currently, it is presumed
1343	* that flying non pickable objects are spell objects.
1344	*/
1345
1346	while (top != NULL) {
1347	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1348	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1349	if (QUERY_FLAG(top, FLAG_NO_PICK)
1350	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1351	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1352	{
1353	/* We insert above top, so we want this object below this */
1354	top=top->below;
1355	break;
1356	}
1357	last = top;
1358	top = top->above;
1359	}
1360	/* Don't want top to be NULL, so set it to the last valid object */
1361	top = last;
1362
1363	/* We let update_position deal with figuring out what the space
1364	* looks like instead of lots of conditions here.
1365	* makes things faster, and effectively the same result.
1366	*/
1367
1368	/* Have object 'fall below' other objects that block view.
1369	* Unless those objects are exits, type 66
1370	* If INS_ON_TOP is used, don't do this processing
1371	* Need to find the object that in fact blocks view, otherwise
1372	* stacking is a bit odd.
1373	*/
1374	if (!(flag & INS_ON_TOP) &&
1375	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1376	(op->face && !op->face->visibility)) {
1377	for (last=top; last != floor; last=last->below)
1378	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1379	/* Check to see if we found the object that blocks view,
1380	* and make sure we have a below pointer for it so that
1381	* we can get inserted below this one, which requires we
1382	* set top to the object below us.
1383	*/
1384	if (last && last->below && last != floor) top=last->below;
1385	}
1386	} /* If objects on this space */
1387	if (flag & INS_MAP_LOAD)
1388	top = GET_MAP_TOP(op->map,op->x,op->y);
1389	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1390
1391	/* Top is the object that our object (op) is going to get inserted above.
1392	*/
1393
1394	/* First object on this space */
1395	if (!top) {
1396	op->above = GET_MAP_OB(op->map, op->x, op->y);
1397	if (op->above) op->above->below = op;
1398	op->below = NULL;
1399	SET_MAP_OB(op->map, op->x, op->y, op);
1400	} else { /* get inserted into the stack above top */
1401	op->above = top->above;
1402	if (op->above) op->above->below = op;
1403	op->below = top;
1404	top->above = op;
1405	}
1406	if (op->above==NULL)
1407	SET_MAP_TOP(op->map,op->x, op->y, op);
1408	} /* else not INS_BELOW_ORIGINATOR */
1409
1410	if(op->type==PLAYER)
1411	op->contr->do_los=1;
1412
1413	/* If we have a floor, we know the player, if any, will be above
1414	* it, so save a few ticks and start from there.
1415	*/
1416	if (!(flag & INS_MAP_LOAD))
1417	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1418	if (tmp->type == PLAYER)
1419	tmp->contr->socket.update_look=1;
1420	}
1421
1422	/* If this object glows, it may affect lighting conditions that are
1423	* visible to others on this map. But update_all_los is really
1424	* an inefficient way to do this, as it means los for all players
1425	* on the map will get recalculated. The players could very well
1426	* be far away from this change and not affected in any way -
1427	* this should get redone to only look for players within range,
1428	* or just updating the P_NEED_UPDATE for spaces within this area
1429	* of effect may be sufficient.
1430	*/
1431	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))
1432	update_all_los(op->map, op->x, op->y);
1433
1434
1435	/* updates flags (blocked, alive, no magic, etc) for this map space */
1436	update_object(op,UP_OBJ_INSERT);
1437
1438
1439	/* Don't know if moving this to the end will break anything. However,
1440	* we want to have update_look set above before calling this.
1441	*
1442	* check_move_on() must be after this because code called from
1443	* check_move_on() depends on correct map flags (so functions like
1444	* blocked() and wall() work properly), and these flags are updated by
1445	* update_object().
1446	*/
1447
1448	/* if this is not the head or flag has been passed, don't check walk on status */
1449
1450	if (!(flag & INS_NO_WALK_ON) && !op->head) {
1451	if (check_move_on(op, originator))
1452	return NULL;
1453
1454	/* If we are a multi part object, lets work our way through the check	1513	/* If we are a multi part object, lets work our way through the check
1455	* walk on's.	1514	* walk on's.
1456	*/	1515	*/
1457	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1516	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1458	if (check_move_on (tmp, originator))	1517	if (check_move_on (tmp, originator))
1459	return NULL;	1518	return NULL;
1460	}	1519	}
		1520
1461	return op;	1521	return op;
1462	}	1522	}
1463		1523
1464	/* this function inserts an object in the map, but if it	1524	/* this function inserts an object in the map, but if it
1465	* finds an object of its own type, it'll remove that one first.	1525	* finds an object of its own type, it'll remove that one first.
1466	* op is the object to insert it under: supplies x and the map.	1526	* op is the object to insert it under: supplies x and the map.
1467	*/	1527	*/
		1528	void
1468	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1529	replace_insert_ob_in_map (const char *arch_string, object *op)
		1530	{
1469	object *tmp;	1531	object *
1470	object *tmp1;	1532	tmp;
		1533	object *
		1534	tmp1;
1471		1535
1472	/* first search for itself and remove any old instances */	1536	/* first search for itself and remove any old instances */
1473		1537
1474	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1538	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1475	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1539	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1476	remove_ob(tmp);	1540	tmp->destroy ();
1477	free_object(tmp);
1478	}
1479	}
1480		1541
1481	tmp1=arch_to_object(find_archetype(arch_string));	1542	tmp1 = arch_to_object (archetype::find (arch_string));
1482		1543
1483		1544	tmp1->x = op->x;
1484	tmp1->x = op->x; tmp1->y = op->y;	1545	tmp1->y = op->y;
1485	insert_ob_in_map(tmp1,op->map,op,0);	1546	insert_ob_in_map (tmp1, op->map, op, 0);
1486	}	1547	}
1487		1548
1488	/*	1549	/*
1489	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1550	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1490	* is returned contains nr objects, and the remaining parts contains	1551	* is returned contains nr objects, and the remaining parts contains
1491	* the rest (or is removed and freed if that number is 0).	1552	* the rest (or is removed and freed if that number is 0).
1492	* On failure, NULL is returned, and the reason put into the	1553	* On failure, NULL is returned, and the reason put into the
1493	* global static errmsg array.	1554	* global static errmsg array.
1494	*/	1555	*/
1495		1556
		1557	object *
1496	object *get_split_ob(object *orig_ob, uint32 nr) {	1558	get_split_ob (object *orig_ob, uint32 nr)
		1559	{
1497	object *newob;	1560	object *newob;
1498	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1561	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1499		1562
1500	if(orig_ob->nrof<nr) {	1563	if (orig_ob->nrof < nr)
1501	sprintf(errmsg,"There are only %d %ss.",	1564	{
1502	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1565	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1503	return NULL;	1566	return NULL;
1504	}	1567	}
		1568
1505	newob = object_create_clone(orig_ob);	1569	newob = object_create_clone (orig_ob);
		1570
1506	if((orig_ob->nrof-=nr)<1) {	1571	if ((orig_ob->nrof -= nr) < 1)
1507	if ( ! is_removed)	1572	orig_ob->destroy (1);
1508	remove_ob(orig_ob);
1509	free_object2(orig_ob, 1);
1510	}
1511	else if ( ! is_removed) {	1573	else if (!is_removed)
		1574	{
1512	if(orig_ob->env!=NULL)	1575	if (orig_ob->env != NULL)
1513	sub_weight (orig_ob->env,orig_ob->weight*nr);	1576	sub_weight (orig_ob->env, orig_ob->weight * nr);
1514	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1577	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1578	{
1515	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1579	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1516	LOG(llevDebug,
1517	"Error, Tried to split object whose map is not in memory.\n");	1580	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1518	return NULL;	1581	return NULL;
1519	}	1582	}
1520	}	1583	}
		1584
1521	newob->nrof=nr;	1585	newob->nrof = nr;
1522		1586
1523	return newob;	1587	return newob;
1524	}	1588	}
1525		1589
1526	/*	1590	/*
1527	* decrease_ob_nr(object, number) decreases a specified number from	1591	* decrease_ob_nr(object, number) decreases a specified number from
1528	* the amount of an object. If the amount reaches 0, the object	1592	* the amount of an object. If the amount reaches 0, the object
1529	* is subsequently removed and freed.	1593	* is subsequently removed and freed.
1530	*	1594	*
1531	* Return value: 'op' if something is left, NULL if the amount reached 0	1595	* Return value: 'op' if something is left, NULL if the amount reached 0
1532	*/	1596	*/
1533		1597
		1598	object *
1534	object *decrease_ob_nr (object *op, uint32 i)	1599	decrease_ob_nr (object *op, uint32 i)
1535	{	1600	{
1536	object *tmp;	1601	object *tmp;
1537	player *pl;	1602	player *pl;
1538		1603
1539	if (i == 0) /* objects with op->nrof require this check */	1604	if (i == 0) /* objects with op->nrof require this check */
1540	return op;	1605	return op;
1541		1606
1542	if (i > op->nrof)	1607	if (i > op->nrof)
1543	i = op->nrof;	1608	i = op->nrof;
1544		1609
1545	if (QUERY_FLAG (op, FLAG_REMOVED))	1610	if (QUERY_FLAG (op, FLAG_REMOVED))
		1611	op->nrof -= i;
		1612	else if (op->env != NULL)
		1613	{
		1614	/* is this object in the players inventory, or sub container
		1615	* therein?
		1616	*/
		1617	tmp = is_player_inv (op->env);
		1618	/* nope. Is this a container the player has opened?
		1619	* If so, set tmp to that player.
		1620	* IMO, searching through all the players will mostly
		1621	* likely be quicker than following op->env to the map,
		1622	* and then searching the map for a player.
		1623	*/
		1624	if (!tmp)
		1625	{
		1626	for (pl = first_player; pl; pl = pl->next)
		1627	if (pl->ob->container == op->env)
		1628	break;
		1629	if (pl)
		1630	tmp = pl->ob;
		1631	else
		1632	tmp = NULL;
		1633	}
		1634
		1635	if (i < op->nrof)
		1636	{
		1637	sub_weight (op->env, op->weight * i);
		1638	op->nrof -= i;
		1639	if (tmp)
		1640	{
		1641	esrv_send_item (tmp, op);
		1642	}
		1643	}
		1644	else
		1645	{
		1646	op->remove ();
		1647	op->nrof = 0;
		1648	if (tmp)
		1649	{
		1650	esrv_del_item (tmp->contr, op->count);
		1651	}
		1652	}
1546	{	1653	}
		1654	else
		1655	{
		1656	object *above = op->above;
		1657
		1658	if (i < op->nrof)
1547	op->nrof -= i;	1659	op->nrof -= i;
1548	}	1660	else
1549	else if (op->env != NULL)
1550	{
1551	/* is this object in the players inventory, or sub container
1552	* therein?
1553	*/
1554	tmp = is_player_inv (op->env);
1555	/* nope. Is this a container the player has opened?
1556	* If so, set tmp to that player.
1557	* IMO, searching through all the players will mostly
1558	* likely be quicker than following op->env to the map,
1559	* and then searching the map for a player.
1560	*/
1561	if (!tmp) {
1562	for (pl=first_player; pl; pl=pl->next)
1563	if (pl->ob->container == op->env) break;
1564	if (pl) tmp=pl->ob;
1565	else tmp=NULL;
1566	}	1661	{
1567
1568	if (i < op->nrof) {
1569	sub_weight (op->env, op->weight * i);
1570	op->nrof -= i;
1571	if (tmp) {
1572	esrv_send_item(tmp, op);
1573	}
1574	} else {
1575	remove_ob (op);	1662	op->remove ();
1576	op->nrof = 0;	1663	op->nrof = 0;
1577	if (tmp) {
1578	esrv_del_item(tmp->contr, op->count);
1579	}	1664	}
1580	}
1581	}
1582	else
1583	{
1584	object *above = op->above;
1585		1665
1586	if (i < op->nrof) {
1587	op->nrof -= i;
1588	} else {
1589	remove_ob (op);
1590	op->nrof = 0;
1591	}
1592	/* Since we just removed op, op->above is null */	1666	/* Since we just removed op, op->above is null */
1593	for (tmp = above; tmp != NULL; tmp = tmp->above)	1667	for (tmp = above; tmp != NULL; tmp = tmp->above)
1594	if (tmp->type == PLAYER) {	1668	if (tmp->type == PLAYER)
		1669	{
1595	if (op->nrof)	1670	if (op->nrof)
1596	esrv_send_item(tmp, op);	1671	esrv_send_item (tmp, op);
1597	else	1672	else
1598	esrv_del_item(tmp->contr, op->count);	1673	esrv_del_item (tmp->contr, op->count);
1599	}	1674	}
1600	}	1675	}
1601		1676
1602	if (op->nrof) {	1677	if (op->nrof)
1603	return op;	1678	return op;
1604	} else {	1679	else
1605	free_object (op);	1680	{
		1681	op->destroy ();
1606	return NULL;	1682	return NULL;
1607	}	1683	}
1608	}	1684	}
1609		1685
1610	/*	1686	/*
1611	* add_weight(object, weight) adds the specified weight to an object,	1687	* add_weight(object, weight) adds the specified weight to an object,
1612	* and also updates how much the environment(s) is/are carrying.	1688	* and also updates how much the environment(s) is/are carrying.
1613	*/	1689	*/
1614		1690
		1691	void
1615	void add_weight (object *op, signed long weight) {	1692	add_weight (object *op, signed long weight)
		1693	{
1616	while (op!=NULL) {	1694	while (op != NULL)
		1695	{
1617	if (op->type == CONTAINER) {	1696	if (op->type == CONTAINER)
1618	weight=(signed long)(weight*(100-op->stats.Str)/100);	1697	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1619	}	1698
1620	op->carrying+=weight;	1699	op->carrying += weight;
1621	op=op->env;	1700	op = op->env;
1622	}	1701	}
1623	}	1702	}
1624		1703
		1704	object *
		1705	insert_ob_in_ob (object *op, object *where)
		1706	{
		1707	if (!where)
		1708	{
		1709	char *dump = dump_object (op);
		1710	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1711	free (dump);
		1712	return op;
		1713	}
		1714
		1715	if (where->head)
		1716	{
		1717	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1718	where = where->head;
		1719	}
		1720
		1721	return where->insert (op);
		1722	}
		1723
1625	/*	1724	/*
1626	* insert_ob_in_ob(op,environment):	1725	* env->insert (op)
1627	* This function inserts the object op in the linked list	1726	* This function inserts the object op in the linked list
1628	* inside the object environment.	1727	* inside the object environment.
1629	*	1728	*
1630	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1631	* the inventory at the last position or next to other objects of the same
1632	* type.
1633	* Frank: Now sorted by type, archetype and magic!
1634	*
1635	* The function returns now pointer to inserted item, and return value can	1729	* The function returns now pointer to inserted item, and return value can
1636	* be != op, if items are merged. -Tero	1730	* be != op, if items are merged. -Tero
1637	*/	1731	*/
1638		1732
1639	object *insert_ob_in_ob(object *op,object *where) {	1733	object *
		1734	object::insert (object *op)
		1735	{
1640	object *tmp, *otmp;	1736	object *tmp, *otmp;
1641		1737
1642	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1738	if (!QUERY_FLAG (op, FLAG_REMOVED))
1643	dump_object(op);	1739	op->remove ();
1644	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1740
1645	return op;
1646	}
1647	if(where==NULL) {
1648	dump_object(op);
1649	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1650	return op;
1651	}
1652	if (where->head) {
1653	LOG(llevDebug,
1654	"Warning: Tried to insert object wrong part of multipart object.\n");
1655	where = where->head;
1656	}
1657	if (op->more) {	1741	if (op->more)
		1742	{
1658	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1743	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1659	&op->name, op->count);
1660	return op;	1744	return op;
1661	}	1745	}
		1746
1662	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1747	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1663	CLEAR_FLAG(op, FLAG_REMOVED);	1748	CLEAR_FLAG (op, FLAG_REMOVED);
1664	if(op->nrof) {	1749	if (op->nrof)
		1750	{
1665	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1751	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1666	if ( CAN_MERGE(tmp,op) ) {	1752	if (CAN_MERGE (tmp, op))
		1753	{
1667	/* return the original object and remove inserted object	1754	/* return the original object and remove inserted object
1668	(client needs the original object) */	1755	(client needs the original object) */
1669	tmp->nrof += op->nrof;	1756	tmp->nrof += op->nrof;
1670	/* Weight handling gets pretty funky. Since we are adding to	1757	/* Weight handling gets pretty funky. Since we are adding to
1671	* tmp->nrof, we need to increase the weight.	1758	* tmp->nrof, we need to increase the weight.
1672	*/	1759	*/
1673	add_weight (where, op->weight*op->nrof);	1760	add_weight (this, op->weight * op->nrof);
1674	SET_FLAG(op, FLAG_REMOVED);	1761	SET_FLAG (op, FLAG_REMOVED);
1675	free_object(op); /* free the inserted object */	1762	op->destroy (); /* free the inserted object */
1676	op = tmp;	1763	op = tmp;
1677	remove_ob (op); /* and fix old object's links */	1764	op->remove (); /* and fix old object's links */
1678	CLEAR_FLAG(op, FLAG_REMOVED);	1765	CLEAR_FLAG (op, FLAG_REMOVED);
1679	break;	1766	break;
1680	}	1767	}
1681		1768
1682	/* I assume combined objects have no inventory	1769	/* I assume combined objects have no inventory
1683	* We add the weight - this object could have just been removed	1770	* We add the weight - this object could have just been removed
1684	* (if it was possible to merge). calling remove_ob will subtract	1771	* (if it was possible to merge). calling remove_ob will subtract
1685	* the weight, so we need to add it in again, since we actually do	1772	* the weight, so we need to add it in again, since we actually do
1686	* the linking below	1773	* the linking below
1687	*/	1774	*/
1688	add_weight (where, op->weight*op->nrof);	1775	add_weight (this, op->weight * op->nrof);
		1776	}
1689	} else	1777	else
1690	add_weight (where, (op->weight+op->carrying));	1778	add_weight (this, (op->weight + op->carrying));
1691		1779
1692	otmp=is_player_inv(where);	1780	otmp = is_player_inv (this);
1693	if (otmp&&otmp->contr!=NULL) {	1781	if (otmp && otmp->contr)
1694	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1782	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1695	fix_player(otmp);	1783	fix_player (otmp);
1696	}
1697		1784
1698	op->map=NULL;	1785	op->map = NULL;
1699	op->env=where;	1786	op->env = this;
1700	op->above=NULL;	1787	op->above = NULL;
1701	op->below=NULL;	1788	op->below = NULL;
1702	op->x=0,op->y=0;	1789	op->x = 0, op->y = 0;
1703		1790
1704	/* reset the light list and los of the players on the map */	1791	/* reset the light list and los of the players on the map */
1705	if((op->glow_radius!=0)&&where->map)	1792	if ((op->glow_radius != 0) && map)
1706	{	1793	{
1707	#ifdef DEBUG_LIGHTS	1794	#ifdef DEBUG_LIGHTS
1708	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1795	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1709	op->name);
1710	#endif /* DEBUG_LIGHTS */	1796	#endif /* DEBUG_LIGHTS */
1711	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1797	if (MAP_DARKNESS (map))
		1798	update_all_los (map, x, y);
1712	}	1799	}
1713		1800
1714	/* Client has no idea of ordering so lets not bother ordering it here.	1801	/* Client has no idea of ordering so lets not bother ordering it here.
1715	* It sure simplifies this function...	1802	* It sure simplifies this function...
1716	*/	1803	*/
1717	if (where->inv==NULL)	1804	if (!inv)
1718	where->inv=op;	1805	inv = op;
1719	else {	1806	else
		1807	{
1720	op->below = where->inv;	1808	op->below = inv;
1721	op->below->above = op;	1809	op->below->above = op;
1722	where->inv = op;	1810	inv = op;
1723	}	1811	}
		1812
1724	return op;	1813	return op;
1725	}	1814	}
1726		1815
1727	/*	1816	/*
1728	* Checks if any objects has a move_type that matches objects	1817	* Checks if any objects has a move_type that matches objects
…		…
1743	* MSW 2001-07-08: Check all objects on space, not just those below	1832	* MSW 2001-07-08: Check all objects on space, not just those below
1744	* object being inserted. insert_ob_in_map may not put new objects	1833	* object being inserted. insert_ob_in_map may not put new objects
1745	* on top.	1834	* on top.
1746	*/	1835	*/
1747		1836
		1837	int
1748	int check_move_on (object *op, object *originator)	1838	check_move_on (object *op, object *originator)
1749	{	1839	{
1750	object *tmp;	1840	object *tmp;
1751	tag_t tag;
1752	mapstruct *m=op->map;	1841	maptile *m = op->map;
1753	int x=op->x, y=op->y;	1842	int x = op->x, y = op->y;
		1843
1754	MoveType move_on, move_slow, move_block;	1844	MoveType move_on, move_slow, move_block;
1755		1845
1756	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1846	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1757	return 0;	1847	return 0;
1758		1848
1759	tag = op->count;
1760
1761	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1849	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1762	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1850	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1763	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1851	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1764		1852
1765	/* if nothing on this space will slow op down or be applied,	1853	/* if nothing on this space will slow op down or be applied,
1766	* no need to do checking below. have to make sure move_type	1854	* no need to do checking below. have to make sure move_type
1767	* is set, as lots of objects don't have it set - we treat that	1855	* is set, as lots of objects don't have it set - we treat that
1768	* as walking.	1856	* as walking.
1769	*/	1857	*/
1770	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1858	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1771	return 0;	1859	return 0;
1772		1860
1773	/* This is basically inverse logic of that below - basically,	1861	/* This is basically inverse logic of that below - basically,
1774	* if the object can avoid the move on or slow move, they do so,	1862	* if the object can avoid the move on or slow move, they do so,
1775	* but can't do it if the alternate movement they are using is	1863	* but can't do it if the alternate movement they are using is
1776	* blocked. Logic on this seems confusing, but does seem correct.	1864	* blocked. Logic on this seems confusing, but does seem correct.
1777	*/	1865	*/
1778	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1866	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1779	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1867	return 0;
1780		1868
1781	/* The objects have to be checked from top to bottom.	1869	/* The objects have to be checked from top to bottom.
1782	* Hence, we first go to the top:	1870	* Hence, we first go to the top:
1783	*/	1871	*/
1784		1872
1785	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1873	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1786	tmp->above!=NULL; tmp=tmp->above) {	1874	{
1787	/* Trim the search when we find the first other spell effect	1875	/* Trim the search when we find the first other spell effect
1788	* this helps performance so that if a space has 50 spell objects,	1876	* this helps performance so that if a space has 50 spell objects,
1789	* we don't need to check all of them.	1877	* we don't need to check all of them.
1790	*/	1878	*/
1791	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1879	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1880	break;
		1881	}
		1882
		1883	for (; tmp; tmp = tmp->below)
1792	}	1884	{
1793	for(;tmp!=NULL; tmp=tmp->below) {	1885	if (tmp == op)
1794	if (tmp == op) continue; /* Can't apply yourself */	1886	continue; /* Can't apply yourself */
1795		1887
1796	/* Check to see if one of the movement types should be slowed down.	1888	/* Check to see if one of the movement types should be slowed down.
1797	* Second check makes sure that the movement types not being slowed	1889	* Second check makes sure that the movement types not being slowed
1798	* (~slow_move) is not blocked on this space - just because the	1890	* (~slow_move) is not blocked on this space - just because the
1799	* space doesn't slow down swimming (for example), if you can't actually	1891	* space doesn't slow down swimming (for example), if you can't actually
1800	* swim on that space, can't use it to avoid the penalty.	1892	* swim on that space, can't use it to avoid the penalty.
1801	*/	1893	*/
1802	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1894	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1895	{
1803	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1896	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1804	((op->move_type & tmp->move_slow) &&
1805	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1897	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1898	{
1806		1899
1807	float diff;	1900	float
1808
1809	diff = tmp->move_slow_penalty*FABS(op->speed);	1901	diff = tmp->move_slow_penalty * FABS (op->speed);
		1902
1810	if (op->type == PLAYER) {	1903	if (op->type == PLAYER)
1811	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1904	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1812	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1905	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1813	diff /= 4.0;	1906	diff /= 4.0;
1814	}	1907
1815	}
1816	op->speed_left -= diff;	1908	op->speed_left -= diff;
1817	}	1909	}
1818	}	1910	}
1819		1911
1820	/* Basically same logic as above, except now for actual apply. */	1912	/* Basically same logic as above, except now for actual apply. */
1821	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1913	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1822	((op->move_type & tmp->move_on) &&
1823	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1914	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1824		1915	{
1825	move_apply(tmp, op, originator);	1916	move_apply (tmp, op, originator);
		1917
1826	if (was_destroyed (op, tag))	1918	if (op->destroyed ())
1827	return 1;	1919	return 1;
1828		1920
1829	/* what the person/creature stepped onto has moved the object	1921	/* what the person/creature stepped onto has moved the object
1830	* someplace new. Don't process any further - if we did,	1922	* someplace new. Don't process any further - if we did,
1831	* have a feeling strange problems would result.	1923	* have a feeling strange problems would result.
1832	*/	1924	*/
1833	if (op->map != m || op->x != x || op->y != y) return 0;	1925	if (op->map != m || op->x != x || op->y != y)
		1926	return 0;
1834	}	1927	}
1835	}	1928	}
		1929
1836	return 0;	1930	return 0;
1837	}	1931	}
1838		1932
1839	/*	1933	/*
1840	* present_arch(arch, map, x, y) searches for any objects with	1934	* present_arch(arch, map, x, y) searches for any objects with
1841	* a matching archetype at the given map and coordinates.	1935	* a matching archetype at the given map and coordinates.
1842	* The first matching object is returned, or NULL if none.	1936	* The first matching object is returned, or NULL if none.
1843	*/	1937	*/
1844		1938
		1939	object *
1845	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1940	present_arch (const archetype *at, maptile *m, int x, int y)
		1941	{
1846	object *tmp;	1942	object *
		1943	tmp;
		1944
1847	if(m==NULL || out_of_map(m,x,y)) {	1945	if (m == NULL || out_of_map (m, x, y))
		1946	{
1848	LOG(llevError,"Present_arch called outside map.\n");	1947	LOG (llevError, "Present_arch called outside map.\n");
1849	return NULL;	1948	return NULL;
1850	}	1949	}
1851	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1950	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1852	if(tmp->arch == at)	1951	if (tmp->arch == at)
1853	return tmp;	1952	return tmp;
1854	return NULL;	1953	return NULL;
1855	}	1954	}
1856		1955
1857	/*	1956	/*
1858	* present(type, map, x, y) searches for any objects with	1957	* present(type, map, x, y) searches for any objects with
1859	* a matching type variable at the given map and coordinates.	1958	* a matching type variable at the given map and coordinates.
1860	* The first matching object is returned, or NULL if none.	1959	* The first matching object is returned, or NULL if none.
1861	*/	1960	*/
1862		1961
		1962	object *
1863	object *present(unsigned char type,mapstruct *m, int x,int y) {	1963	present (unsigned char type, maptile *m, int x, int y)
		1964	{
1864	object *tmp;	1965	object *
		1966	tmp;
		1967
1865	if(out_of_map(m,x,y)) {	1968	if (out_of_map (m, x, y))
		1969	{
1866	LOG(llevError,"Present called outside map.\n");	1970	LOG (llevError, "Present called outside map.\n");
1867	return NULL;	1971	return NULL;
1868	}	1972	}
1869	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1973	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1870	if(tmp->type==type)	1974	if (tmp->type == type)
1871	return tmp;	1975	return tmp;
1872	return NULL;	1976	return NULL;
1873	}	1977	}
1874		1978
1875	/*	1979	/*
1876	* present_in_ob(type, object) searches for any objects with	1980	* present_in_ob(type, object) searches for any objects with
1877	* a matching type variable in the inventory of the given object.	1981	* a matching type variable in the inventory of the given object.
1878	* The first matching object is returned, or NULL if none.	1982	* The first matching object is returned, or NULL if none.
1879	*/	1983	*/
1880		1984
		1985	object *
1881	object *present_in_ob(unsigned char type, const object *op) {	1986	present_in_ob (unsigned char type, const object *op)
		1987	{
1882	object *tmp;	1988	object *
		1989	tmp;
		1990
1883	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1991	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1884	if(tmp->type==type)	1992	if (tmp->type == type)
1885	return tmp;	1993	return tmp;
1886	return NULL;	1994	return NULL;
1887	}	1995	}
1888		1996
1889	/*	1997	/*
…		…
1899	* the object name, not the archetype name. this is so that the	2007	* the object name, not the archetype name. this is so that the
1900	* spell code can use one object type (force), but change it's name	2008	* spell code can use one object type (force), but change it's name
1901	* to be unique.	2009	* to be unique.
1902	*/	2010	*/
1903		2011
		2012	object *
1904	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2013	present_in_ob_by_name (int type, const char *str, const object *op)
		2014	{
1905	object *tmp;	2015	object *
		2016	tmp;
1906		2017
1907	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2018	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2019	{
1908	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2020	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1909	return tmp;	2021	return tmp;
1910	}	2022	}
1911	return NULL;	2023	return NULL;
1912	}	2024	}
1913		2025
1914	/*	2026	/*
1915	* present_arch_in_ob(archetype, object) searches for any objects with	2027	* present_arch_in_ob(archetype, object) searches for any objects with
1916	* a matching archetype in the inventory of the given object.	2028	* a matching archetype in the inventory of the given object.
1917	* The first matching object is returned, or NULL if none.	2029	* The first matching object is returned, or NULL if none.
1918	*/	2030	*/
1919		2031
		2032	object *
1920	object *present_arch_in_ob(const archetype *at, const object *op) {	2033	present_arch_in_ob (const archetype *at, const object *op)
		2034	{
1921	object *tmp;	2035	object *
		2036	tmp;
		2037
1922	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2038	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1923	if( tmp->arch == at)	2039	if (tmp->arch == at)
1924	return tmp;	2040	return tmp;
1925	return NULL;	2041	return NULL;
1926	}	2042	}
1927		2043
1928	/*	2044	/*
1929	* activate recursively a flag on an object inventory	2045	* activate recursively a flag on an object inventory
1930	*/	2046	*/
		2047	void
1931	void flag_inv(object*op, int flag){	2048	flag_inv (object *op, int flag)
		2049	{
1932	object *tmp;	2050	object *
		2051	tmp;
		2052
1933	if(op->inv)	2053	if (op->inv)
1934	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2054	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2055	{
1935	SET_FLAG(tmp, flag);	2056	SET_FLAG (tmp, flag);
1936	flag_inv(tmp,flag);	2057	flag_inv (tmp, flag);
1937	}	2058	}
1938	}/*	2059	} /*
1939	* desactivate recursively a flag on an object inventory	2060	* desactivate recursively a flag on an object inventory
1940	*/	2061	*/
		2062	void
1941	void unflag_inv(object*op, int flag){	2063	unflag_inv (object *op, int flag)
		2064	{
1942	object *tmp;	2065	object *
		2066	tmp;
		2067
1943	if(op->inv)	2068	if (op->inv)
1944	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2069	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2070	{
1945	CLEAR_FLAG(tmp, flag);	2071	CLEAR_FLAG (tmp, flag);
1946	unflag_inv(tmp,flag);	2072	unflag_inv (tmp, flag);
1947	}	2073	}
1948	}	2074	}
1949		2075
1950	/*	2076	/*
1951	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2077	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1952	* all it's inventory (recursively).	2078	* all it's inventory (recursively).
1953	* If checksums are used, a player will get set_cheat called for	2079	* If checksums are used, a player will get set_cheat called for
1954	* him/her-self and all object carried by a call to this function.	2080	* him/her-self and all object carried by a call to this function.
1955	*/	2081	*/
1956		2082
		2083	void
1957	void set_cheat(object *op) {	2084	set_cheat (object *op)
		2085	{
1958	SET_FLAG(op, FLAG_WAS_WIZ);	2086	SET_FLAG (op, FLAG_WAS_WIZ);
1959	flag_inv(op, FLAG_WAS_WIZ);	2087	flag_inv (op, FLAG_WAS_WIZ);
1960	}	2088	}
1961		2089
1962	/*	2090	/*
1963	* find_free_spot(object, map, x, y, start, stop) will search for	2091	* find_free_spot(object, map, x, y, start, stop) will search for
1964	* a spot at the given map and coordinates which will be able to contain	2092	* a spot at the given map and coordinates which will be able to contain
…		…
1979	* to know if the space in question will block the object. We can't use	2107	* to know if the space in question will block the object. We can't use
1980	* the archetype because that isn't correct if the monster has been	2108	* the archetype because that isn't correct if the monster has been
1981	* customized, changed states, etc.	2109	* customized, changed states, etc.
1982	*/	2110	*/
1983		2111
		2112	int
1984	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2113	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2114	{
		2115	int
		2116	i,
1985	int i,index=0, flag;	2117	index = 0, flag;
		2118	static int
1986	static int altern[SIZEOFFREE];	2119	altern[SIZEOFFREE];
1987		2120
1988	for(i=start;i<stop;i++) {	2121	for (i = start; i < stop; i++)
		2122	{
1989	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2123	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
1990	if(!flag)	2124	if (!flag)
1991	altern[index++]=i;	2125	altern[index++] = i;
1992		2126
1993	/* Basically, if we find a wall on a space, we cut down the search size.	2127	/* Basically, if we find a wall on a space, we cut down the search size.
1994	* In this way, we won't return spaces that are on another side of a wall.	2128	* In this way, we won't return spaces that are on another side of a wall.
1995	* This mostly work, but it cuts down the search size in all directions -	2129	* This mostly work, but it cuts down the search size in all directions -
1996	* if the space being examined only has a wall to the north and empty	2130	* if the space being examined only has a wall to the north and empty
1997	* spaces in all the other directions, this will reduce the search space	2131	* spaces in all the other directions, this will reduce the search space
1998	* to only the spaces immediately surrounding the target area, and	2132	* to only the spaces immediately surrounding the target area, and
1999	* won't look 2 spaces south of the target space.	2133	* won't look 2 spaces south of the target space.
2000	*/	2134	*/
2001	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2135	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2002	stop=maxfree[i];	2136	stop = maxfree[i];
2003	}	2137	}
2004	if(!index) return -1;	2138	if (!index)
		2139	return -1;
2005	return altern[RANDOM()%index];	2140	return altern[RANDOM () % index];
2006	}	2141	}
2007		2142
2008	/*	2143	/*
2009	* find_first_free_spot(archetype, mapstruct, x, y) works like	2144	* find_first_free_spot(archetype, maptile, x, y) works like
2010	* find_free_spot(), but it will search max number of squares.	2145	* find_free_spot(), but it will search max number of squares.
2011	* But it will return the first available spot, not a random choice.	2146	* But it will return the first available spot, not a random choice.
2012	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2147	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2013	*/	2148	*/
2014		2149
		2150	int
2015	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2151	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2152	{
		2153	int
2016	int i;	2154	i;
		2155
2017	for(i=0;i<SIZEOFFREE;i++) {	2156	for (i = 0; i < SIZEOFFREE; i++)
		2157	{
2018	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2158	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2019	return i;	2159	return i;
2020	}	2160	}
2021	return -1;	2161	return -1;
2022	}	2162	}
2023		2163
2024	/*	2164	/*
2025	* The function permute(arr, begin, end) randomly reorders the array	2165	* The function permute(arr, begin, end) randomly reorders the array
2026	* arr[begin..end-1].	2166	* arr[begin..end-1].
2027	*/	2167	*/
		2168	static void
2028	static void permute(int *arr, int begin, int end)	2169	permute (int *arr, int begin, int end)
2029	{	2170	{
2030	int i, j, tmp, len;	2171	int
		2172	i,
		2173	j,
		2174	tmp,
		2175	len;
2031		2176
2032	len = end-begin;	2177	len = end - begin;
2033	for(i = begin; i < end; i++)	2178	for (i = begin; i < end; i++)
2034	{	2179	{
2035	j = begin+RANDOM()%len;	2180	j = begin + RANDOM () % len;
2036		2181
2037	tmp = arr[i];	2182	tmp = arr[i];
2038	arr[i] = arr[j];	2183	arr[i] = arr[j];
2039	arr[j] = tmp;	2184	arr[j] = tmp;
2040	}	2185	}
2041	}	2186	}
2042		2187
2043	/* new function to make monster searching more efficient, and effective!	2188	/* new function to make monster searching more efficient, and effective!
2044	* This basically returns a randomized array (in the passed pointer) of	2189	* This basically returns a randomized array (in the passed pointer) of
2045	* the spaces to find monsters. In this way, it won't always look for	2190	* the spaces to find monsters. In this way, it won't always look for
2046	* monsters to the north first. However, the size of the array passed	2191	* monsters to the north first. However, the size of the array passed
2047	* covers all the spaces, so within that size, all the spaces within	2192	* covers all the spaces, so within that size, all the spaces within
2048	* the 3x3 area will be searched, just not in a predictable order.	2193	* the 3x3 area will be searched, just not in a predictable order.
2049	*/	2194	*/
		2195	void
2050	void get_search_arr(int *search_arr)	2196	get_search_arr (int *search_arr)
2051	{	2197	{
		2198	int
2052	int i;	2199	i;
2053		2200
2054	for(i = 0; i < SIZEOFFREE; i++)	2201	for (i = 0; i < SIZEOFFREE; i++)
2055	{	2202	{
2056	search_arr[i] = i;	2203	search_arr[i] = i;
2057	}	2204	}
2058		2205
2059	permute(search_arr, 1, SIZEOFFREE1+1);	2206	permute (search_arr, 1, SIZEOFFREE1 + 1);
2060	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2207	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2061	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2208	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2062	}	2209	}
2063		2210
2064	/*	2211	/*
2065	* find_dir(map, x, y, exclude) will search some close squares in the	2212	* find_dir(map, x, y, exclude) will search some close squares in the
2066	* given map at the given coordinates for live objects.	2213	* given map at the given coordinates for live objects.
…		…
2072	* is actually want is going to try and move there. We need this info	2219	* is actually want is going to try and move there. We need this info
2073	* because we have to know what movement the thing looking to move	2220	* because we have to know what movement the thing looking to move
2074	* there is capable of.	2221	* there is capable of.
2075	*/	2222	*/
2076		2223
		2224	int
2077	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2225	find_dir (maptile *m, int x, int y, object *exclude)
		2226	{
		2227	int
		2228	i,
2078	int i,max=SIZEOFFREE, mflags;	2229	max = SIZEOFFREE, mflags;
		2230
2079	sint16 nx, ny;	2231	sint16 nx, ny;
2080	object *tmp;	2232	object *
2081	mapstruct *mp;	2233	tmp;
		2234	maptile *
		2235	mp;
		2236
2082	MoveType blocked, move_type;	2237	MoveType blocked, move_type;
2083		2238
2084	if (exclude && exclude->head) {	2239	if (exclude && exclude->head)
		2240	{
2085	exclude = exclude->head;	2241	exclude = exclude->head;
2086	move_type = exclude->move_type;	2242	move_type = exclude->move_type;
2087	} else {	2243	}
		2244	else
		2245	{
2088	/* If we don't have anything, presume it can use all movement types. */	2246	/* If we don't have anything, presume it can use all movement types. */
2089	move_type=MOVE_ALL;	2247	move_type = MOVE_ALL;
		2248	}
		2249
		2250	for (i = 1; i < max; i++)
2090	}	2251	{
2091
2092	for(i=1;i<max;i++) {
2093	mp = m;	2252	mp = m;
2094	nx = x + freearr_x[i];	2253	nx = x + freearr_x[i];
2095	ny = y + freearr_y[i];	2254	ny = y + freearr_y[i];
2096		2255
2097	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2256	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2098	if (mflags & P_OUT_OF_MAP) {	2257	if (mflags & P_OUT_OF_MAP)
		2258	{
2099	max = maxfree[i];	2259	max = maxfree[i];
		2260	}
2100	} else {	2261	else
		2262	{
2101	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2263	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2102		2264
2103	if ((move_type & blocked) == move_type) {	2265	if ((move_type & blocked) == move_type)
		2266	{
2104	max=maxfree[i];	2267	max = maxfree[i];
		2268	}
2105	} else if (mflags & P_IS_ALIVE) {	2269	else if (mflags & P_IS_ALIVE)
		2270	{
2106	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2271	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2107	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2272	{
2108	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2273	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
		2274	{
2109	break;	2275	break;
2110	}	2276	}
2111	}	2277	}
2112	if(tmp) {	2278	if (tmp)
		2279	{
2113	return freedir[i];	2280	return freedir[i];
2114	}	2281	}
2115	}	2282	}
2116	}	2283	}
2117	}	2284	}
2118	return 0;	2285	return 0;
2119	}	2286	}
2120		2287
2121	/*	2288	/*
2122	* distance(object 1, object 2) will return the square of the	2289	* distance(object 1, object 2) will return the square of the
2123	* distance between the two given objects.	2290	* distance between the two given objects.
2124	*/	2291	*/
2125		2292
		2293	int
2126	int distance(const object *ob1, const object *ob2) {	2294	distance (const object *ob1, const object *ob2)
		2295	{
2127	int i;	2296	int
2128	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2297	i;
2129	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2298
		2299	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2130	return i;	2300	return i;
2131	}	2301	}
2132		2302
2133	/*	2303	/*
2134	* find_dir_2(delta-x,delta-y) will return a direction in which	2304	* find_dir_2(delta-x,delta-y) will return a direction in which
2135	* an object which has subtracted the x and y coordinates of another	2305	* an object which has subtracted the x and y coordinates of another
2136	* object, needs to travel toward it.	2306	* object, needs to travel toward it.
2137	*/	2307	*/
2138		2308
		2309	int
2139	int find_dir_2(int x, int y) {	2310	find_dir_2 (int x, int y)
		2311	{
2140	int q;	2312	int
		2313	q;
2141		2314
2142	if(y)	2315	if (y)
2143	q=x*100/y;	2316	q = x * 100 / y;
2144	else if (x)	2317	else if (x)
2145	q= -300*x;	2318	q = -300 * x;
2146	else	2319	else
2147	return 0;	2320	return 0;
2148		2321
2149	if(y>0) {	2322	if (y > 0)
		2323	{
2150	if(q < -242)	2324	if (q < -242)
2151	return 3 ;	2325	return 3;
2152	if (q < -41)	2326	if (q < -41)
2153	return 2 ;	2327	return 2;
2154	if (q < 41)	2328	if (q < 41)
2155	return 1 ;	2329	return 1;
2156	if (q < 242)	2330	if (q < 242)
2157	return 8 ;	2331	return 8;
2158	return 7 ;	2332	return 7;
2159	}	2333	}
2160		2334
2161	if (q < -242)	2335	if (q < -242)
2162	return 7 ;	2336	return 7;
2163	if (q < -41)	2337	if (q < -41)
2164	return 6 ;	2338	return 6;
2165	if (q < 41)	2339	if (q < 41)
2166	return 5 ;	2340	return 5;
2167	if (q < 242)	2341	if (q < 242)
2168	return 4 ;	2342	return 4;
2169		2343
2170	return 3 ;	2344	return 3;
2171	}	2345	}
2172		2346
2173	/*	2347	/*
2174	* absdir(int): Returns a number between 1 and 8, which represent	2348	* absdir(int): Returns a number between 1 and 8, which represent
2175	* the "absolute" direction of a number (it actually takes care of	2349	* the "absolute" direction of a number (it actually takes care of
2176	* "overflow" in previous calculations of a direction).	2350	* "overflow" in previous calculations of a direction).
2177	*/	2351	*/
2178		2352
		2353	int
2179	int absdir(int d) {	2354	absdir (int d)
2180	while(d<1) d+=8;	2355	{
2181	while(d>8) d-=8;	2356	while (d < 1)
		2357	d += 8;
		2358	while (d > 8)
		2359	d -= 8;
2182	return d;	2360	return d;
2183	}	2361	}
2184		2362
2185	/*	2363	/*
2186	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2364	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2187	* between two directions (which are expected to be absolute (see absdir())	2365	* between two directions (which are expected to be absolute (see absdir())
2188	*/	2366	*/
2189		2367
		2368	int
2190	int dirdiff(int dir1, int dir2) {	2369	dirdiff (int dir1, int dir2)
		2370	{
2191	int d;	2371	int
		2372	d;
		2373
2192	d = abs(dir1 - dir2);	2374	d = abs (dir1 - dir2);
2193	if(d>4)	2375	if (d > 4)
2194	d = 8 - d;	2376	d = 8 - d;
2195	return d;	2377	return d;
2196	}	2378	}
2197		2379
2198	/* peterm:	2380	/* peterm:
…		…
2203	* direction 4, 14, or 16 to get back to where we are.	2385	* direction 4, 14, or 16 to get back to where we are.
2204	* Moved from spell_util.c to object.c with the other related direction	2386	* Moved from spell_util.c to object.c with the other related direction
2205	* functions.	2387	* functions.
2206	*/	2388	*/
2207		2389
		2390	int
2208	int reduction_dir[SIZEOFFREE][3] = {	2391	reduction_dir[SIZEOFFREE][3] = {
2209	{0,0,0}, /* 0 */	2392	{0, 0, 0}, /* 0 */
2210	{0,0,0}, /* 1 */	2393	{0, 0, 0}, /* 1 */
2211	{0,0,0}, /* 2 */	2394	{0, 0, 0}, /* 2 */
2212	{0,0,0}, /* 3 */	2395	{0, 0, 0}, /* 3 */
2213	{0,0,0}, /* 4 */	2396	{0, 0, 0}, /* 4 */
2214	{0,0,0}, /* 5 */	2397	{0, 0, 0}, /* 5 */
2215	{0,0,0}, /* 6 */	2398	{0, 0, 0}, /* 6 */
2216	{0,0,0}, /* 7 */	2399	{0, 0, 0}, /* 7 */
2217	{0,0,0}, /* 8 */	2400	{0, 0, 0}, /* 8 */
2218	{8,1,2}, /* 9 */	2401	{8, 1, 2}, /* 9 */
2219	{1,2,-1}, /* 10 */	2402	{1, 2, -1}, /* 10 */
2220	{2,10,12}, /* 11 */	2403	{2, 10, 12}, /* 11 */
2221	{2,3,-1}, /* 12 */	2404	{2, 3, -1}, /* 12 */
2222	{2,3,4}, /* 13 */	2405	{2, 3, 4}, /* 13 */
2223	{3,4,-1}, /* 14 */	2406	{3, 4, -1}, /* 14 */
2224	{4,14,16}, /* 15 */	2407	{4, 14, 16}, /* 15 */
2225	{5,4,-1}, /* 16 */	2408	{5, 4, -1}, /* 16 */
2226	{4,5,6}, /* 17 */	2409	{4, 5, 6}, /* 17 */
2227	{6,5,-1}, /* 18 */	2410	{6, 5, -1}, /* 18 */
2228	{6,20,18}, /* 19 */	2411	{6, 20, 18}, /* 19 */
2229	{7,6,-1}, /* 20 */	2412	{7, 6, -1}, /* 20 */
2230	{6,7,8}, /* 21 */	2413	{6, 7, 8}, /* 21 */
2231	{7,8,-1}, /* 22 */	2414	{7, 8, -1}, /* 22 */
2232	{8,22,24}, /* 23 */	2415	{8, 22, 24}, /* 23 */
2233	{8,1,-1}, /* 24 */	2416	{8, 1, -1}, /* 24 */
2234	{24,9,10}, /* 25 */	2417	{24, 9, 10}, /* 25 */
2235	{9,10,-1}, /* 26 */	2418	{9, 10, -1}, /* 26 */
2236	{10,11,-1}, /* 27 */	2419	{10, 11, -1}, /* 27 */
2237	{27,11,29}, /* 28 */	2420	{27, 11, 29}, /* 28 */
2238	{11,12,-1}, /* 29 */	2421	{11, 12, -1}, /* 29 */
2239	{12,13,-1}, /* 30 */	2422	{12, 13, -1}, /* 30 */
2240	{12,13,14}, /* 31 */	2423	{12, 13, 14}, /* 31 */
2241	{13,14,-1}, /* 32 */	2424	{13, 14, -1}, /* 32 */
2242	{14,15,-1}, /* 33 */	2425	{14, 15, -1}, /* 33 */
2243	{33,15,35}, /* 34 */	2426	{33, 15, 35}, /* 34 */
2244	{16,15,-1}, /* 35 */	2427	{16, 15, -1}, /* 35 */
2245	{17,16,-1}, /* 36 */	2428	{17, 16, -1}, /* 36 */
2246	{18,17,16}, /* 37 */	2429	{18, 17, 16}, /* 37 */
2247	{18,17,-1}, /* 38 */	2430	{18, 17, -1}, /* 38 */
2248	{18,19,-1}, /* 39 */	2431	{18, 19, -1}, /* 39 */
2249	{41,19,39}, /* 40 */	2432	{41, 19, 39}, /* 40 */
2250	{19,20,-1}, /* 41 */	2433	{19, 20, -1}, /* 41 */
2251	{20,21,-1}, /* 42 */	2434	{20, 21, -1}, /* 42 */
2252	{20,21,22}, /* 43 */	2435	{20, 21, 22}, /* 43 */
2253	{21,22,-1}, /* 44 */	2436	{21, 22, -1}, /* 44 */
2254	{23,22,-1}, /* 45 */	2437	{23, 22, -1}, /* 45 */
2255	{45,47,23}, /* 46 */	2438	{45, 47, 23}, /* 46 */
2256	{23,24,-1}, /* 47 */	2439	{23, 24, -1}, /* 47 */
2257	{24,9,-1}}; /* 48 */	2440	{24, 9, -1}
		2441	}; /* 48 */
2258		2442
2259	/* Recursive routine to step back and see if we can	2443	/* Recursive routine to step back and see if we can
2260	* find a path to that monster that we found. If not,	2444	* find a path to that monster that we found. If not,
2261	* we don't bother going toward it. Returns 1 if we	2445	* we don't bother going toward it. Returns 1 if we
2262	* can see a direct way to get it	2446	* can see a direct way to get it
2263	* Modified to be map tile aware -.MSW	2447	* Modified to be map tile aware -.MSW
2264	*/	2448	*/
2265
2266		2449
		2450
		2451	int
2267	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2452	can_see_monsterP (maptile *m, int x, int y, int dir)
		2453	{
2268	sint16 dx, dy;	2454	sint16 dx, dy;
		2455	int
2269	int mflags;	2456	mflags;
2270		2457
		2458	if (dir < 0)
2271	if(dir<0) return 0; /* exit condition: invalid direction */	2459	return 0; /* exit condition: invalid direction */
2272		2460
2273	dx = x + freearr_x[dir];	2461	dx = x + freearr_x[dir];
2274	dy = y + freearr_y[dir];	2462	dy = y + freearr_y[dir];
2275		2463
2276	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2464	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2277		2465
2278	/* This functional arguably was incorrect before - it was	2466	/* This functional arguably was incorrect before - it was
2279	* checking for P_WALL - that was basically seeing if	2467	* checking for P_WALL - that was basically seeing if
2280	* we could move to the monster - this is being more	2468	* we could move to the monster - this is being more
2281	* literal on if we can see it. To know if we can actually	2469	* literal on if we can see it. To know if we can actually
2282	* move to the monster, we'd need the monster passed in or	2470	* move to the monster, we'd need the monster passed in or
2283	* at least its move type.	2471	* at least its move type.
2284	*/	2472	*/
2285	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2473	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2474	return 0;
2286		2475
2287	/* yes, can see. */	2476	/* yes, can see. */
2288	if(dir < 9) return 1;	2477	if (dir < 9)
		2478	return 1;
2289	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2479	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2290	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2480	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2291	can_see_monsterP(m,x,y, reduction_dir[dir][2]);
2292	}	2481	}
2293		2482
2294		2483
2295		2484
2296	/*	2485	/*
2297	* can_pick(picker, item): finds out if an object is possible to be	2486	* can_pick(picker, item): finds out if an object is possible to be
2298	* picked up by the picker. Returnes 1 if it can be	2487	* picked up by the picker. Returnes 1 if it can be
2299	* picked up, otherwise 0.	2488	* picked up, otherwise 0.
2300	*	2489	*
…		…
2302	* core dumps if they do.	2491	* core dumps if they do.
2303	*	2492	*
2304	* Add a check so we can't pick up invisible objects (0.93.8)	2493	* Add a check so we can't pick up invisible objects (0.93.8)
2305	*/	2494	*/
2306		2495
		2496	int
2307	int can_pick(const object *who, const object *item) {	2497	can_pick (const object *who, const object *item)
		2498	{
2308	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2499	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2309	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2500	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2310	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2501	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2311	(who->type==PLAYER||item->weight<who->weight/3));
2312	}	2502	}
2313		2503
2314		2504
2315	/*	2505	/*
2316	* create clone from object to another	2506	* create clone from object to another
2317	*/	2507	*/
		2508	object *
2318	object *object_create_clone (object *asrc) {	2509	object_create_clone (object *asrc)
		2510	{
2319	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2511	object *dst = 0, *tmp, *src, *part, *prev, *item;
2320		2512
2321	if(!asrc) return NULL;	2513	if (!asrc)
		2514	return 0;
		2515
2322	src = asrc;	2516	src = asrc;
2323	if(src->head)	2517	if (src->head)
2324	src = src->head;	2518	src = src->head;
2325		2519
2326	prev = NULL;	2520	prev = 0;
2327	for(part = src; part; part = part->more) {	2521	for (part = src; part; part = part->more)
2328	tmp = get_object();	2522	{
2329	copy_object(part,tmp);	2523	tmp = object::create ();
		2524	part->copy_to (tmp);
2330	tmp->x -= src->x;	2525	tmp->x -= src->x;
2331	tmp->y -= src->y;	2526	tmp->y -= src->y;
		2527
2332	if(!part->head) {	2528	if (!part->head)
		2529	{
2333	dst = tmp;	2530	dst = tmp;
2334	tmp->head = NULL;	2531	tmp->head = 0;
		2532	}
2335	} else {	2533	else
		2534	{
2336	tmp->head = dst;	2535	tmp->head = dst;
2337	}	2536	}
		2537
2338	tmp->more = NULL;	2538	tmp->more = 0;
		2539
2339	if(prev)	2540	if (prev)
2340	prev->more = tmp;	2541	prev->more = tmp;
		2542
2341	prev = tmp;	2543	prev = tmp;
2342	}	2544	}
2343	/*** copy inventory ***/	2545
2344	for(item = src->inv; item; item = item->below) {	2546	for (item = src->inv; item; item = item->below)
2345	(void) insert_ob_in_ob(object_create_clone(item),dst);	2547	insert_ob_in_ob (object_create_clone (item), dst);
2346	}
2347		2548
2348	return dst;	2549	return dst;
2349	}
2350
2351	/* return true if the object was destroyed, 0 otherwise */
2352	int was_destroyed (const object *op, tag_t old_tag)
2353	{
2354	/* checking for FLAG_FREED isn't necessary, but makes this function more
2355	* robust */
2356	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2357	}	2550	}
2358		2551
2359	/* GROS - Creates an object using a string representing its content. */	2552	/* GROS - Creates an object using a string representing its content. */
2360	/* Basically, we save the content of the string to a temp file, then call */	2553	/* Basically, we save the content of the string to a temp file, then call */
2361	/* load_object on it. I admit it is a highly inefficient way to make things, */	2554	/* load_object on it. I admit it is a highly inefficient way to make things, */
2362	/* but it was simple to make and allows reusing the load_object function. */	2555	/* but it was simple to make and allows reusing the load_object function. */
2363	/* Remember not to use load_object_str in a time-critical situation. */	2556	/* Remember not to use load_object_str in a time-critical situation. */
2364	/* Also remember that multiparts objects are not supported for now. */	2557	/* Also remember that multiparts objects are not supported for now. */
2365		2558
		2559	object *
2366	object* load_object_str(const char *obstr)	2560	load_object_str (const char *obstr)
2367	{	2561	{
2368	object *op;	2562	object *op;
2369	char filename[MAX_BUF];	2563	char filename[MAX_BUF];
		2564
2370	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2565	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2371		2566
2372	FILE *tempfile=fopen(filename,"w");	2567	FILE *tempfile = fopen (filename, "w");
		2568
2373	if (tempfile == NULL)	2569	if (tempfile == NULL)
2374	{	2570	{
2375	LOG(llevError,"Error - Unable to access load object temp file\n");	2571	LOG (llevError, "Error - Unable to access load object temp file\n");
2376	return NULL;	2572	return NULL;
2377	};	2573	}
		2574
2378	fprintf(tempfile,obstr);	2575	fprintf (tempfile, obstr);
2379	fclose(tempfile);	2576	fclose (tempfile);
2380		2577
2381	op=get_object();	2578	op = object::create ();
2382		2579
2383	object_thawer thawer (filename);	2580	object_thawer thawer (filename);
2384		2581
2385	if (thawer)	2582	if (thawer)
2386	load_object(thawer,op,0);	2583	load_object (thawer, op, 0);
2387		2584
2388	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2585	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2389	CLEAR_FLAG(op,FLAG_REMOVED);	2586	CLEAR_FLAG (op, FLAG_REMOVED);
2390		2587
2391	return op;	2588	return op;
2392	}	2589	}
2393		2590
2394	/* This returns the first object in who's inventory that	2591	/* This returns the first object in who's inventory that
2395	* has the same type and subtype match.	2592	* has the same type and subtype match.
2396	* returns NULL if no match.	2593	* returns NULL if no match.
2397	*/	2594	*/
		2595	object *
2398	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2596	find_obj_by_type_subtype (const object *who, int type, int subtype)
2399	{	2597	{
2400	object *tmp;	2598	object *tmp;
2401		2599
2402	for (tmp=who->inv; tmp; tmp=tmp->below)	2600	for (tmp = who->inv; tmp; tmp = tmp->below)
2403	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2601	if (tmp->type == type && tmp->subtype == subtype)
		2602	return tmp;
2404		2603
2405	return NULL;	2604	return NULL;
2406	}	2605	}
2407		2606
2408	/* If ob has a field named key, return the link from the list,	2607	/* If ob has a field named key, return the link from the list,
2409	* otherwise return NULL.	2608	* otherwise return NULL.
2410	*	2609	*
2411	* key must be a passed in shared string - otherwise, this won't	2610	* key must be a passed in shared string - otherwise, this won't
2412	* do the desired thing.	2611	* do the desired thing.
2413	*/	2612	*/
		2613	key_value *
2414	key_value * get_ob_key_link(const object * ob, const char * key) {	2614	get_ob_key_link (const object *ob, const char *key)
		2615	{
2415	key_value * link;	2616	key_value *link;
2416		2617
2417	for (link = ob->key_values; link != NULL; link = link->next) {	2618	for (link = ob->key_values; link != NULL; link = link->next)
2418	if (link->key == key) {	2619	if (link->key == key)
2419	return link;	2620	return link;
2420	}	2621
2421	}
2422
2423	return NULL;	2622	return NULL;
2424	}	2623	}
2425		2624
2426	/*	2625	/*
2427	* Returns the value of op has an extra_field for key, or NULL.	2626	* Returns the value of op has an extra_field for key, or NULL.
2428	*	2627	*
2429	* The argument doesn't need to be a shared string.	2628	* The argument doesn't need to be a shared string.
2430	*	2629	*
2431	* The returned string is shared.	2630	* The returned string is shared.
2432	*/	2631	*/
		2632	const char *
2433	const char * get_ob_key_value(const object * op, const char * const key) {	2633	get_ob_key_value (const object *op, const char *const key)
		2634	{
2434	key_value * link;	2635	key_value *link;
2435	const char * canonical_key;	2636	shstr_cmp canonical_key (key);
		2637
		2638	if (!canonical_key)
2436		2639	{
2437	canonical_key = shstr::find (key);
2438
2439	if (canonical_key == NULL) {
2440	/* 1. There being a field named key on any object	2640	/* 1. There being a field named key on any object
2441	* implies there'd be a shared string to find.	2641	* implies there'd be a shared string to find.
2442	* 2. Since there isn't, no object has this field.	2642	* 2. Since there isn't, no object has this field.
2443	* 3. Therefore, *this* object doesn't have this field.	2643	* 3. Therefore, *this* object doesn't have this field.
2444	*/	2644	*/
2445	return NULL;	2645	return 0;
2446	}	2646	}
2447		2647
2448	/* This is copied from get_ob_key_link() above -	2648	/* This is copied from get_ob_key_link() above -
2449	* only 4 lines, and saves the function call overhead.	2649	* only 4 lines, and saves the function call overhead.
2450	*/	2650	*/
2451	for (link = op->key_values; link != NULL; link = link->next) {	2651	for (link = op->key_values; link; link = link->next)
2452	if (link->key == canonical_key) {	2652	if (link->key == canonical_key)
2453	return link->value;	2653	return link->value;
2454	}	2654
2455	}	2655	return 0;
2456	return NULL;
2457	}	2656	}
2458		2657
2459		2658
2460	/*	2659	/*
2461	* Updates the canonical_key in op to value.	2660	* Updates the canonical_key in op to value.
…		…
2465	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2664	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2466	* keys.	2665	* keys.
2467	*	2666	*
2468	* Returns TRUE on success.	2667	* Returns TRUE on success.
2469	*/	2668	*/
		2669	int
2470	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2670	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2671	{
		2672	key_value *
2471	key_value * field = NULL, *last=NULL;	2673	field = NULL, *last = NULL;
2472		2674
2473	for (field=op->key_values; field != NULL; field=field->next) {	2675	for (field = op->key_values; field != NULL; field = field->next)
		2676	{
2474	if (field->key != canonical_key) {	2677	if (field->key != canonical_key)
		2678	{
2475	last = field;	2679	last = field;
2476	continue;	2680	continue;
2477	}	2681	}
2478		2682
2479	if (value)	2683	if (value)
2480	field->value = value;	2684	field->value = value;
2481	else {	2685	else
		2686	{
2482	/* Basically, if the archetype has this key set,	2687	/* Basically, if the archetype has this key set,
2483	* we need to store the null value so when we save	2688	* we need to store the null value so when we save
2484	* it, we save the empty value so that when we load,	2689	* it, we save the empty value so that when we load,
2485	* we get this value back again.	2690	* we get this value back again.
2486	*/	2691	*/
2487	if (get_ob_key_link (&op->arch->clone, canonical_key))	2692	if (get_ob_key_link (&op->arch->clone, canonical_key))
2488	field->value = 0;	2693	field->value = 0;
		2694	else
		2695	{
		2696	if (last)
		2697	last->next = field->next;
2489	else	2698	else
2490	{
2491	if (last) last->next = field->next;
2492	else op->key_values = field->next;	2699	op->key_values = field->next;
2493		2700
2494	delete field;	2701	delete field;
2495	}	2702	}
2496	}	2703	}
2497	return TRUE;	2704	return TRUE;
2498	}	2705	}
2499	/* IF we get here, key doesn't exist */	2706	/* IF we get here, key doesn't exist */
2500		2707
2501	/* No field, we'll have to add it. */	2708	/* No field, we'll have to add it. */
		2709
		2710	if (!add_key)
2502		2711	{
2503	if (!add_key) {
2504	return FALSE;	2712	return FALSE;
2505	}	2713	}
2506	/* There isn't any good reason to store a null	2714	/* There isn't any good reason to store a null
2507	* value in the key/value list. If the archetype has	2715	* value in the key/value list. If the archetype has
2508	* this key, then we should also have it, so shouldn't	2716	* this key, then we should also have it, so shouldn't
2509	* be here. If user wants to store empty strings,	2717	* be here. If user wants to store empty strings,
2510	* should pass in ""	2718	* should pass in ""
2511	*/	2719	*/
2512	if (value == NULL) return TRUE;	2720	if (value == NULL)
2513
2514	field = new key_value;
2515
2516	field->key = canonical_key;
2517	field->value = value;
2518	/* Usual prepend-addition. */
2519	field->next = op->key_values;
2520	op->key_values = field;
2521
2522	return TRUE;	2721	return TRUE;
		2722
		2723	field = new key_value;
		2724
		2725	field->key = canonical_key;
		2726	field->value = value;
		2727	/* Usual prepend-addition. */
		2728	field->next = op->key_values;
		2729	op->key_values = field;
		2730
		2731	return TRUE;
2523	}	2732	}
2524		2733
2525	/*	2734	/*
2526	* Updates the key in op to value.	2735	* Updates the key in op to value.
2527	*	2736	*
…		…
2529	* and not add new ones.	2738	* and not add new ones.
2530	* In general, should be little reason FALSE is ever passed in for add_key	2739	* In general, should be little reason FALSE is ever passed in for add_key
2531	*	2740	*
2532	* Returns TRUE on success.	2741	* Returns TRUE on success.
2533	*/	2742	*/
		2743	int
2534	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2744	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2535	{	2745	{
2536	shstr key_ (key);	2746	shstr key_ (key);
		2747
2537	return set_ob_key_value_s (op, key_, value, add_key);	2748	return set_ob_key_value_s (op, key_, value, add_key);
2538	}	2749	}
		2750
		2751	object::depth_iterator::depth_iterator (object *container)
		2752	: iterator_base (container)
		2753	{
		2754	while (item->inv)
		2755	item = item->inv;
		2756	}
		2757
		2758	void
		2759	object::depth_iterator::next ()
		2760	{
		2761	if (item->below)
		2762	{
		2763	item = item->below;
		2764
		2765	while (item->inv)
		2766	item = item->inv;
		2767	}
		2768	else
		2769	item = item->env;
		2770	}
		2771
		2772	// return a suitable string describing an objetc in enough detail to find it
		2773	const char *
		2774	object::debug_desc (char *info) const
		2775	{
		2776	char info2[256 * 3];
		2777	char *p = info;
		2778
		2779	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2780	count,
		2781	&name,
		2782	title ? " " : "",
		2783	title ? (const char *)title : "");
		2784
		2785	if (env)
		2786	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2787
		2788	if (map)
		2789	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2790
		2791	return info;
		2792	}
		2793
		2794	const char *
		2795	object::debug_desc () const
		2796	{
		2797	static char info[256 * 3];
		2798	return debug_desc (info);
		2799	}
		2800

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