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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 1.69 by root, Mon Dec 18 03:00:02 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
		35	#include <bitset>
		36
42	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
		38	static UUID uuid;
		39	const uint64 UUID_SKIP = 1<<19;
43		40
44	object *objects; /* Pointer to the list of used objects */
45	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
46		42
47	short freearr_x[SIZEOFFREE]=	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
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};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	short freearr_y[SIZEOFFREE]=	45	};
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,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
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};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
53	int maxfree[SIZEOFFREE]=	48	};
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,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
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};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
56	int freedir[SIZEOFFREE]= {	52	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,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
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};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
59		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
60		133
61	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
62	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
63	key_value * wants_field;	138	key_value *wants_field;
64		139
65	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
66	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
67	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
68	*/	143	*/
69		144
70	/* For each field in wants, */	145	/* For each field in wants, */
71	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		147	{
72	key_value * has_field;	148	key_value *has_field;
73		149
74	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
75	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
76		154	{
77	if (has_field == NULL) {
78	/* No field with that name. */	155	/* No field with that name. */
79	return FALSE;	156	return FALSE;
80	}
81		157	}
		158
82	/* Found the matching field. */	159	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
84	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
85	return FALSE;	163	return FALSE;
86	}	164	}
87		165
88	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
89	}
90		167	}
		168
91	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
92	return TRUE;	170	return TRUE;
93	}	171	}
94		172
95	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
97	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
98	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
99	*/	179	*/
100	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
101	}	181	}
102		182
103	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
104	* they can be merged together.	184	* they can be merged together.
105	*	185	*
106	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
107	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
108	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
109	*	189	*
110	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
111	*	191	*
112	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
113	* check weight	193	* check weight
114	*/	194	*/
115		195
116	int CAN_MERGE(object *ob1, object *ob2) {	196	bool object::can_merge_slow (object *ob1, object *ob2)
117		197	{
118	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
119	if ((ob1 == ob2) || (ob1->type != ob2->type)) return 0;	199	if (ob1 == ob2
		200	|| ob1->type != ob2->type
		201	|| ob1->speed != ob2->speed
		202	|| ob1->value != ob2->value
		203	|| ob1->name != ob2->name)
		204	return 0;
120		205
121	if (ob1->speed != ob2->speed) return 0;	206	//TODO: this ain't working well, use nicer and correct overflow check
122	/* Note sure why the following is the case - either the object has to	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
123	* be animated or have a very low speed. Is this an attempted monster	208	* value could not be stored in a sint32 (which unfortunately sometimes is
124	* check?	209	* used to store nrof).
125	*/	210	*/
126	if (!QUERY_FLAG(ob1,FLAG_ANIMATE) && FABS((ob1)->speed) > MIN_ACTIVE_SPEED)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
		212	return 0;
		213
		214	/* If the objects have been identified, set the BEEN_APPLIED flag.
		215	* This is to the comparison of the flags below will be OK. We
		216	* just can't ignore the been applied or identified flags, as they
		217	* are not equal - just if it has been identified, the been_applied
		218	* flags lose any meaning.
		219	*/
		220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
		221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
		222
		223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
		224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
		225
		226	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
		227	|| ob1->arch != ob2->arch
		228	|| ob1->name != ob2->name
		229	|| ob1->title != ob2->title
		230	|| ob1->msg != ob2->msg
		231	|| ob1->weight != ob2->weight
		232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
		234	|| ob1->attacktype != ob2->attacktype
		235	|| ob1->magic != ob2->magic
		236	|| ob1->slaying != ob2->slaying
		237	|| ob1->skill != ob2->skill
		238	|| ob1->value != ob2->value
		239	|| ob1->animation_id != ob2->animation_id
		240	|| ob1->client_type != ob2->client_type
		241	|| ob1->materialname != ob2->materialname
		242	|| ob1->lore != ob2->lore
		243	|| ob1->subtype != ob2->subtype
		244	|| ob1->move_type != ob2->move_type
		245	|| ob1->move_block != ob2->move_block
		246	|| ob1->move_allow != ob2->move_allow
		247	|| ob1->move_on != ob2->move_on
		248	|| ob1->move_off != ob2->move_off
		249	|| ob1->move_slow != ob2->move_slow
		250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
		251	return 0;
		252
		253	/* This is really a spellbook check - really, we should
		254	* check all objects in the inventory.
		255	*/
		256	if (ob1->inv || ob2->inv)
		257	{
		258	/* if one object has inventory but the other doesn't, not equiv */
		259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
127	return 0;	260	return 0;
128		261
129	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	262	/* Now check to see if the two inventory objects could merge */
130	* value could not be stored in a sint32 (which unfortunately sometimes is	263	if (!object::can_merge (ob1->inv, ob2->inv))
131	* used to store nrof).
132	*/
133	if (ob1->nrof+ob2->nrof >= 1UL<<31)
134	return 0;	264	return 0;
135		265
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	266	/* inventory ok - still need to check rest of this object to see
147	* if it is valid.	267	* if it is valid.
148	*/	268	*/
149	}	269	}
150		270
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,	271	/* 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	272	* 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.	273	* some items equipped, and we don't want those to merge.
202	*/	274	*/
203	if (QUERY_FLAG(ob1, FLAG_APPLIED) || QUERY_FLAG(ob2, FLAG_APPLIED))	275	if (QUERY_FLAG (ob1, FLAG_APPLIED) || QUERY_FLAG (ob2, FLAG_APPLIED))
		276	return 0;
		277
		278	/* Note sure why the following is the case - either the object has to
		279	* be animated or have a very low speed. Is this an attempted monster
		280	* check?
		281	*/
		282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
		283	return 0;
		284
		285	switch (ob1->type)
		286	{
		287	case SCROLL:
		288	if (ob1->level != ob2->level)
		289	return 0;
		290	break;
		291	}
		292
		293	if (ob1->key_values != NULL || ob2->key_values != NULL)
		294	{
		295	/* At least one of these has key_values. */
		296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
		297	/* One has fields, but the other one doesn't. */
204	return 0;	298	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)) {	299	else if (!compare_ob_value_lists (ob1, ob2))
218	return 0;	300	return 0;
219	}	301	}
		302
		303	//TODO: generate an event or call into perl for additional checks
		304	if (ob1->self || ob2->self)
220	}	305	{
		306	ob1->optimise ();
		307	ob2->optimise ();
221		308
		309	if (ob1->self || ob2->self)
		310	return 0;
		311	}
		312
222	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
223	return 1;	314	return 1;
224	}	315	}
225		316
226	/*	317	/*
227	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
228	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
229	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
230	*/	321	*/
231	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
232	signed long sum;	325	long sum;
233	object *inv;	326	object *inv;
		327
234	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
235	if (inv->inv)	330	if (inv->inv)
236	sum_weight(inv);	331	sum_weight (inv);
237	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
238	}	333	}
		334
239	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
240	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
241	if(op->carrying != sum)	338	if (op->carrying != sum)
242	op->carrying = sum;	339	op->carrying = sum;
		340
243	return sum;	341	return sum;
244	}	342	}
245		343
246	/**	344	/**
247	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
248	*/	346	*/
249		347
		348	object *
250	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
251	while (op->env != NULL)	351	while (op->env != NULL)
252	op = op->env;	352	op = op->env;
253	return op;	353	return op;
254	}	354	}
255		355
256	/*	356	/*
257	* Eneq(@csd.uu.se): Since we can have items buried in a character we need	357	* 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	358	* a better check. We basically keeping traversing up until we can't
259	* or find a player.	359	* or find a player.
260	*/	360	*/
261		361
		362	object *
262	object *is_player_inv (object *op) {	363	is_player_inv (object *op)
		364	{
263	for (;op!=NULL&&op->type!=PLAYER; op=op->env)	365	for (; op != NULL && op->type != PLAYER; op = op->env)
264	if (op->env==op)	366	if (op->env == op)
265	op->env = NULL;	367	op->env = NULL;
266	return op;	368	return op;
267	}	369	}
268		370
269	/*	371	/*
270	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	372	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
271	* Some error messages.	373	* Some error messages.
272	* The result of the dump is stored in the static global errmsg array.	374	* The result of the dump is stored in the static global errmsg array.
273	*/	375	*/
274		376
275	void dump_object2(object *op) {	377	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) {	378	dump_object (object *op)
322	if(op==NULL) {	379	{
323	strcpy(errmsg,"[NULL pointer]");	380	if (!op)
324	return;	381	return strdup ("[NULLOBJ]");
325	}
326	errmsg[0]='\0';
327	dump_object2(op);
328	}
329		382
330	void dump_all_objects(void) {	383	object_freezer freezer;
331	object *op;	384	save_object (freezer, op, 3);
332	for(op=objects;op!=NULL;op=op->next) {	385	return freezer.as_string ();
333	dump_object(op);
334	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
335	}
336	}	386	}
337		387
338	/*	388	/*
339	* get_nearest_part(multi-object, object 2) returns the part of the	389	* get_nearest_part(multi-object, object 2) returns the part of the
340	* multi-object 1 which is closest to the second object.	390	* multi-object 1 which is closest to the second object.
341	* If it's not a multi-object, it is returned.	391	* If it's not a multi-object, it is returned.
342	*/	392	*/
343		393
		394	object *
344	object *get_nearest_part(object *op, const object *pl) {	395	get_nearest_part (object *op, const object *pl)
		396	{
345	object *tmp,*closest;	397	object *tmp, *closest;
346	int last_dist,i;	398	int last_dist, i;
		399
347	if(op->more==NULL)	400	if (op->more == NULL)
348	return op;	401	return op;
349	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	402	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
350	if((i=distance(tmp,pl))<last_dist)	403	if ((i = distance (tmp, pl)) < last_dist)
351	closest=tmp,last_dist=i;	404	closest = tmp, last_dist = i;
352	return closest;	405	return closest;
353	}	406	}
354		407
355	/*	408	/*
356	* Returns the object which has the count-variable equal to the argument.	409	* Returns the object which has the count-variable equal to the argument.
357	*/	410	*/
358		411
		412	object *
359	object *find_object(tag_t i) {	413	find_object (tag_t i)
360	object *op;	414	{
361	for(op=objects;op!=NULL;op=op->next)	415	for (object *op = object::first; op; op = op->next)
362	if(op->count==i)	416	if (op->count == i)
363	break;	417	return op;
		418
364	return op;	419	return 0;
365	}	420	}
366		421
367	/*	422	/*
368	* Returns the first object which has a name equal to the argument.	423	* Returns the first object which has a name equal to the argument.
369	* Used only by the patch command, but not all that useful.	424	* Used only by the patch command, but not all that useful.
370	* Enables features like "patch <name-of-other-player> food 999"	425	* Enables features like "patch <name-of-other-player> food 999"
371	*/	426	*/
372		427
		428	object *
373	object *find_object_name(const char *str) {	429	find_object_name (const char *str)
374	const char *name = shstr::find (str);	430	{
		431	shstr_cmp str_ (str);
375	object *op;	432	object *op;
		433
376	for(op=objects;op!=NULL;op=op->next)	434	for (op = object::first; op != NULL; op = op->next)
377	if(&op->name == name)	435	if (op->name == str_)
378	break;	436	break;
379		437
380	return op;	438	return op;
381	}	439	}
382		440
		441	void
383	void free_all_object_data ()	442	free_all_object_data ()
384	{	443	{
385	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	444	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	}	445	}
422		446
423	/*	447	/*
424	* Sets the owner and sets the skill and exp pointers to owner's current	448	* Sets the owner and sets the skill and exp pointers to owner's current
425	* skill and experience objects.	449	* skill and experience objects.
426	*/	450	*/
427	void set_owner (object *op, object *owner)	451	void
		452	object::set_owner (object *owner)
428	{	453	{
429	if(owner==NULL||op==NULL)	454	if (!owner)
430	return;	455	return;
431		456
432	/* next line added to allow objects which own objects */	457	/* next line added to allow objects which own objects */
433	/* Add a check for ownercounts in here, as I got into an endless loop	458	/* 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	459	* with the fireball owning a poison cloud which then owned the
435	* fireball. I believe that was caused by one of the objects getting	460	* fireball. I believe that was caused by one of the objects getting
436	* freed and then another object replacing it. Since the ownercounts	461	* 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.	462	* didn't match, this check is valid and I believe that cause is valid.
438	*/	463	*/
439	while (owner->owner && owner!=owner->owner &&	464	while (owner->owner)
440	owner->ownercount==owner->owner->count) owner=owner->owner;	465	owner = owner->owner;
441		466
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;	467	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	}	468	}
477		469
478	/* Zero the key_values on op, decrementing the shared-string	470	/* Zero the key_values on op, decrementing the shared-string
479	* refcounts and freeing the links.	471	* refcounts and freeing the links.
480	*/	472	*/
		473	static void
481	static void free_key_values(object * op)	474	free_key_values (object *op)
482	{	475	{
483	for (key_value *i = op->key_values; i != 0; )	476	for (key_value *i = op->key_values; i != 0;)
484	{	477	{
485	key_value *next = i->next;	478	key_value *next = i->next;
486	delete i;	479	delete i;
		480
487	i = next;	481	i = next;
488	}	482	}
489		483
490	op->key_values = 0;	484	op->key_values = 0;
491	}	485	}
492		486
493	void object::clear ()	487	void object::clear ()
494	{	488	{
495	attachable_base::clear ();	489	attachable_base::clear ();
496		490
497	free_key_values (this);	491	free_key_values (this);
498		492
499	name = 0;	493	owner = 0;
		494	name = 0;
500	name_pl = 0;	495	name_pl = 0;
501	title = 0;	496	title = 0;
502	race = 0;	497	race = 0;
503	slaying = 0;	498	slaying = 0;
504	skill = 0;	499	skill = 0;
505	msg = 0;	500	msg = 0;
506	lore = 0;	501	lore = 0;
507	custom_name = 0;	502	custom_name = 0;
508	materialname = 0;	503	materialname = 0;
		504	contr = 0;
		505	below = 0;
		506	above = 0;
		507	inv = 0;
		508	container = 0;
		509	env = 0;
		510	more = 0;
		511	head = 0;
		512	map = 0;
		513	active_next = 0;
		514	active_prev = 0;
509		515
510	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));	516	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
511		517
512	SET_FLAG (this, FLAG_REMOVED);	518	SET_FLAG (this, FLAG_REMOVED);
513	}
514		519
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 */	520	/* What is not cleared is next, prev, and count */
546		521
547	op->expmul = 1.0;	522	expmul = 1.0;
548	op->face = blank_face;	523	face = blank_face;
549	op->attacked_by_count = -1;
550		524
551	if (settings.casting_time)	525	if (settings.casting_time)
552	op->casting_time = -1;	526	casting_time = -1;
553	}	527	}
554		528
555	/*	529	/*
556	* copy object first frees everything allocated by the second object,	530	* copy_to first frees everything allocated by the dst object,
557	* and then copies the contends of the first object into the second	531	* and then copies the contents of itself into the second
558	* object, allocating what needs to be allocated. Basically, any	532	* object, allocating what needs to be allocated. Basically, any
559	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	533	* 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	534	* if the first object is freed, the pointers in the new object
561	* will point at garbage.	535	* will point at garbage.
562	*/	536	*/
563		537	void
564	void copy_object (object *op2, object *op)	538	object::copy_to (object *dst)
565	{	539	{
566	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	540	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
567	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	541	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
568		542
569	op2->clone (op);	543	*(object_copy *)dst = *this;
		544	*(object_pod *)dst = *this;
570		545
571	if (is_freed) SET_FLAG (op, FLAG_FREED);	546	if (self || cb)
572	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	547	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
573		548
		549	if (is_freed)
		550	SET_FLAG (dst, FLAG_FREED);
		551
		552	if (is_removed)
		553	SET_FLAG (dst, FLAG_REMOVED);
		554
574	if (op2->speed < 0)	555	if (speed < 0)
575	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	556	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
576		557
577	/* Copy over key_values, if any. */	558	/* Copy over key_values, if any. */
578	if (op2->key_values != NULL)	559	if (key_values)
579	{	560	{
580	key_value *tail = NULL;	561	key_value *tail = 0;
581	key_value *i;	562	key_value *i;
582		563
583	op->key_values = NULL;	564	dst->key_values = 0;
584		565
585	for (i = op2->key_values; i != NULL; i = i->next)	566	for (i = key_values; i; i = i->next)
586	{	567	{
587	key_value *new_link = new key_value;	568	key_value *new_link = new key_value;
588		569
589	new_link->next = NULL;	570	new_link->next = 0;
590	new_link->key = i->key;	571	new_link->key = i->key;
591	new_link->value = i->value;	572	new_link->value = i->value;
592		573
593	/* Try and be clever here, too. */	574	/* Try and be clever here, too. */
594	if (op->key_values == NULL)	575	if (!dst->key_values)
595	{	576	{
596	op->key_values = new_link;	577	dst->key_values = new_link;
597	tail = new_link;	578	tail = new_link;
598	}	579	}
599	else	580	else
600	{	581	{
601	tail->next = new_link;	582	tail->next = new_link;
602	tail = new_link;	583	tail = new_link;
603	}	584	}
604	}	585	}
605	}	586	}
606		587
607	update_ob_speed (op);	588	update_ob_speed (dst);
608	}	589	}
609		590
610	/*	591	object *
611	* get_object() grabs an object from the list of unused objects, makes	592	object::clone ()
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	{	593	{
618	object *op = new object;	594	object *neu = create ();
619		595	copy_to (neu);
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;	596	return neu;
640	}	597	}
641		598
642	/*	599	/*
643	* If an object with the IS_TURNABLE() flag needs to be turned due	600	* 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	601	* 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.	602	* be called to update the face variable, _and_ how it looks on the map.
646	*/	603	*/
647		604
		605	void
648	void update_turn_face(object *op) {	606	update_turn_face (object *op)
		607	{
649	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	608	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
650	return;	609	return;
651	SET_ANIMATION(op, op->direction);	610	SET_ANIMATION (op, op->direction);
652	update_object(op,UP_OBJ_FACE);	611	update_object (op, UP_OBJ_FACE);
653	}	612	}
654		613
655	/*	614	/*
656	* Updates the speed of an object. If the speed changes from 0 to another	615	* 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.	616	* 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.	617	* This function needs to be called whenever the speed of an object changes.
659	*/	618	*/
660		619	void
661	void update_ob_speed(object *op) {	620	update_ob_speed (object *op)
		621	{
662	extern int arch_init;	622	extern int arch_init;
663		623
664	/* No reason putting the archetypes objects on the speed list,	624	/* No reason putting the archetypes objects on the speed list,
665	* since they never really need to be updated.	625	* since they never really need to be updated.
666	*/	626	*/
667		627
668	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	628	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		629	{
669	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	630	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
670	#ifdef MANY_CORES	631	#ifdef MANY_CORES
671	abort();	632	abort ();
672	#else	633	#else
673	op->speed = 0;	634	op->speed = 0;
674	#endif	635	#endif
675	}	636	}
		637
676	if (arch_init) {	638	if (arch_init)
		639	return;
		640
		641	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		642	{
		643	/* If already on active list, don't do anything */
		644	if (op->active_next || op->active_prev || op == active_objects)
677	return;	645	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		646
684	/* process_events() expects us to insert the object at the beginning	647	/* process_events() expects us to insert the object at the beginning
685	* of the list. */	648	* of the list. */
686	op->active_next = active_objects;	649	op->active_next = active_objects;
		650
687	if (op->active_next!=NULL)	651	if (op->active_next != NULL)
688	op->active_next->active_prev = op;	652	op->active_next->active_prev = op;
		653
689	active_objects = op;	654	active_objects = op;
		655	}
		656	else
690	}	657	{
691	else {
692	/* If not on the active list, nothing needs to be done */	658	/* If not on the active list, nothing needs to be done */
693	if (!op->active_next && !op->active_prev && op!=active_objects)	659	if (!op->active_next && !op->active_prev && op != active_objects)
694	return;	660	return;
695		661
696	if (op->active_prev==NULL) {	662	if (op->active_prev == NULL)
		663	{
697	active_objects = op->active_next;	664	active_objects = op->active_next;
		665
698	if (op->active_next!=NULL)	666	if (op->active_next != NULL)
699	op->active_next->active_prev = NULL;	667	op->active_next->active_prev = NULL;
		668	}
		669	else
700	}	670	{
701	else {
702	op->active_prev->active_next = op->active_next;	671	op->active_prev->active_next = op->active_next;
		672
703	if (op->active_next)	673	if (op->active_next)
704	op->active_next->active_prev = op->active_prev;	674	op->active_next->active_prev = op->active_prev;
705	}	675	}
		676
706	op->active_next = NULL;	677	op->active_next = NULL;
707	op->active_prev = NULL;	678	op->active_prev = NULL;
708	}	679	}
709	}	680	}
710		681
711	/* This function removes object 'op' from the list of active	682	/* This function removes object 'op' from the list of active
712	* objects.	683	* objects.
…		…
714	* reference maps where you don't want an object that isn't	685	* reference maps where you don't want an object that isn't
715	* in play chewing up cpu time getting processed.	686	* in play chewing up cpu time getting processed.
716	* The reverse of this is to call update_ob_speed, which	687	* The reverse of this is to call update_ob_speed, which
717	* will do the right thing based on the speed of the object.	688	* will do the right thing based on the speed of the object.
718	*/	689	*/
		690	void
719	void remove_from_active_list(object *op)	691	remove_from_active_list (object *op)
720	{	692	{
721	/* If not on the active list, nothing needs to be done */	693	/* If not on the active list, nothing needs to be done */
722	if (!op->active_next && !op->active_prev && op!=active_objects)	694	if (!op->active_next && !op->active_prev && op != active_objects)
723	return;	695	return;
724		696
725	if (op->active_prev==NULL) {	697	if (op->active_prev == NULL)
		698	{
726	active_objects = op->active_next;	699	active_objects = op->active_next;
727	if (op->active_next!=NULL)	700	if (op->active_next != NULL)
728	op->active_next->active_prev = NULL;	701	op->active_next->active_prev = NULL;
		702	}
		703	else
729	}	704	{
730	else {
731	op->active_prev->active_next = op->active_next;	705	op->active_prev->active_next = op->active_next;
732	if (op->active_next)	706	if (op->active_next)
733	op->active_next->active_prev = op->active_prev;	707	op->active_next->active_prev = op->active_prev;
734	}	708	}
735	op->active_next = NULL;	709	op->active_next = NULL;
736	op->active_prev = NULL;	710	op->active_prev = NULL;
737	}	711	}
738		712
739	/*	713	/*
740	* update_object() updates the array which represents the map.	714	* update_object() updates the array which represents the map.
741	* It takes into account invisible objects (and represent squares covered	715	* It takes into account invisible objects (and represent squares covered
…		…
756	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	730	* 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.	731	* as that is easier than trying to look at what may have changed.
758	* UP_OBJ_FACE: only the objects face has changed.	732	* UP_OBJ_FACE: only the objects face has changed.
759	*/	733	*/
760		734
		735	void
761	void update_object(object *op, int action) {	736	update_object (object *op, int action)
		737	{
762	int update_now=0, flags;	738	int update_now = 0, flags;
763	MoveType move_on, move_off, move_block, move_slow;	739	MoveType move_on, move_off, move_block, move_slow;
764		740
765	if (op == NULL) {	741	if (op == NULL)
		742	{
766	/* this should never happen */	743	/* this should never happen */
767	LOG(llevDebug,"update_object() called for NULL object.\n");	744	LOG (llevDebug, "update_object() called for NULL object.\n");
768	return;	745	return;
769	}
770		746	}
		747
771	if(op->env!=NULL) {	748	if (op->env != NULL)
		749	{
772	/* Animation is currently handled by client, so nothing	750	/* Animation is currently handled by client, so nothing
773	* to do in this case.	751	* to do in this case.
774	*/	752	*/
775	return;	753	return;
776	}	754	}
777		755
778	/* If the map is saving, don't do anything as everything is	756	/* If the map is saving, don't do anything as everything is
779	* going to get freed anyways.	757	* going to get freed anyways.
780	*/	758	*/
781	if (!op->map || op->map->in_memory == MAP_SAVING) return;	759	if (!op->map || op->map->in_memory == MAP_SAVING)
782		760	return;
		761
783	/* make sure the object is within map boundaries */	762	/* make sure the object is within map boundaries */
784	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	763	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)) {	764	{
786	LOG(llevError,"update_object() called for object out of map!\n");	765	LOG (llevError, "update_object() called for object out of map!\n");
787	#ifdef MANY_CORES	766	#ifdef MANY_CORES
788	abort();	767	abort ();
789	#endif	768	#endif
790	return;	769	return;
791	}
792		770	}
		771
793	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	772	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
794	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	773	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);	774	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);	775	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);	776	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);	777	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
799		778
800	if (action == UP_OBJ_INSERT) {	779	if (action == UP_OBJ_INSERT)
		780	{
801	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	781	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
802	update_now=1;	782	update_now = 1;
803		783
804	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	784	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
805	update_now=1;	785	update_now = 1;
806		786
807	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	787	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
808	update_now=1;	788	update_now = 1;
809		789
810	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	790	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
811	update_now=1;	791	update_now = 1;
812		792
		793	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		794	update_now = 1;
		795
813	if ((move_on | op->move_on) != move_on) update_now=1;	796	if ((move_on | op->move_on) != move_on)
		797	update_now = 1;
		798
814	if ((move_off | op->move_off) != move_off) update_now=1;	799	if ((move_off | op->move_off) != move_off)
		800	update_now = 1;
		801
815	/* This isn't perfect, but I don't expect a lot of objects to	802	/* This isn't perfect, but I don't expect a lot of objects to
816	* to have move_allow right now.	803	* to have move_allow right now.
817	*/	804	*/
818	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	805	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
819	update_now=1;	806	update_now = 1;
		807
820	if ((move_slow | op->move_slow) != move_slow) update_now=1;	808	if ((move_slow | op->move_slow) != move_slow)
		809	update_now = 1;
821	}	810	}
		811
822	/* if the object is being removed, we can't make intelligent	812	/* if the object is being removed, we can't make intelligent
823	* decisions, because remove_ob can't really pass the object	813	* decisions, because remove_ob can't really pass the object
824	* that is being removed.	814	* that is being removed.
825	*/	815	*/
826	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	816	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
827	update_now=1;	817	update_now = 1;
828	} else if (action == UP_OBJ_FACE) {	818	else if (action == UP_OBJ_FACE)
829	/* Nothing to do for that case */	819	/* Nothing to do for that case */ ;
830	}
831	else {	820	else
832	LOG(llevError,"update_object called with invalid action: %d\n", action);	821	LOG (llevError, "update_object called with invalid action: %d\n", action);
833	}
834		822
835	if (update_now) {	823	if (update_now)
		824	{
836	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	825	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);	826	update_position (op->map, op->x, op->y);
838	}	827	}
839		828
840	if(op->more!=NULL)	829	if (op->more != NULL)
841	update_object(op->more, action);	830	update_object (op->more, action);
842	}	831	}
843		832
		833	object::vector object::mortals;
		834	object::vector object::objects; // not yet used
		835	object *object::first;
		836
		837	void object::free_mortals ()
		838	{
		839	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		840	if ((*i)->refcnt)
		841	++i; // further delay freeing
		842	else
		843	{
		844	delete *i;
		845	mortals.erase (i);
		846	}
		847	}
		848
		849	object::object ()
		850	{
		851	SET_FLAG (this, FLAG_REMOVED);
		852
		853	expmul = 1.0;
		854	face = blank_face;
		855	}
		856
		857	object::~object ()
		858	{
		859	free_key_values (this);
		860	}
		861
		862	void object::link ()
		863	{
		864	count = ++ob_count;
		865	uuid = gen_uuid ();
		866
		867	prev = 0;
		868	next = object::first;
		869
		870	if (object::first)
		871	object::first->prev = this;
		872
		873	object::first = this;
		874	}
		875
		876	void object::unlink ()
		877	{
		878	if (this == object::first)
		879	object::first = next;
		880
		881	/* Remove this object from the list of used objects */
		882	if (prev) prev->next = next;
		883	if (next) next->prev = prev;
		884
		885	prev = 0;
		886	next = 0;
		887	}
		888
		889	object *object::create ()
		890	{
		891	object *op = new object;
		892	op->link ();
		893	return op;
		894	}
844		895
845	/*	896	/*
846	* free_object() frees everything allocated by an object, removes	897	* free_object() frees everything allocated by an object, removes
847	* it from the list of used objects, and puts it on the list of	898	* 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.	899	* free objects. The IS_FREED() flag is set in the object.
849	* The object must have been removed by remove_ob() first for	900	* The object must have been removed by remove_ob() first for
850	* this function to succeed.	901	* this function to succeed.
851	*	902	*
852	* If free_inventory is set, free inventory as well. Else drop items in	903	* If destroy_inventory is set, free inventory as well. Else drop items in
853	* inventory to the ground.	904	* inventory to the ground.
854	*/	905	*/
855		906	void object::destroy (bool destroy_inventory)
856	void
857	free_object (object * ob)
858	{	907	{
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))	908	if (QUERY_FLAG (this, FLAG_FREED))
868	{	909	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		910
876	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	911	if (QUERY_FLAG (this, FLAG_FRIENDLY))
877	{
878	LOG (llevMonster, "Warning: tried to free friendly object.\n");
879	remove_friendly_object (ob);	912	remove_friendly_object (this);
880	}
881		913
882	if (QUERY_FLAG (ob, FLAG_FREED))	914	if (!QUERY_FLAG (this, FLAG_REMOVED))
883	{	915	remove ();
884	dump_object (ob);	916
885	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	917	SET_FLAG (this, FLAG_FREED);
886	return;	918
		919	if (more)
887	}	920	{
888		921	more->destroy (destroy_inventory);
889	if (ob->more != NULL)	922	more = 0;
890	{	923	}
891	free_object2 (ob->more, free_inventory);
892	ob->more = NULL;
893	}
894		924
895	if (ob->inv)	925	if (inv)
896	{	926	{
897	/* Only if the space blocks everything do we not process -	927	/* Only if the space blocks everything do we not process -
898	* if some form of movemnt is allowed, let objects	928	* if some form of movement is allowed, let objects
899	* drop on that space.	929	* drop on that space.
900	*/	930	*/
901	if (free_inventory || ob->map == NULL	931	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	932	{
903	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))	933	object *op = inv;
904	{
905	op = ob->inv;
906		934
907	while (op != NULL)	935	while (op)
908	{	936	{
909	tmp = op->below;	937	object *tmp = op->below;
910	remove_ob (op);	938	op->destroy (destroy_inventory);
911	free_object2 (op, free_inventory);
912	op = tmp;	939	op = tmp;
913	}	940	}
914	}	941	}
915	else	942	else
916	{ /* Put objects in inventory onto this space */	943	{ /* Put objects in inventory onto this space */
917	op = ob->inv;	944	object *op = inv;
918		945
919	while (op != NULL)	946	while (op)
920	{	947	{
921	tmp = op->below;	948	object *tmp = op->below;
922	remove_ob (op);
923		949
		950	op->remove ();
		951
924	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	952	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
925	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	953	|| 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))	954	op->destroy ();
927	free_object (op);	955	else
928	else	956	{
929	{	957	op->x = x;
930	op->x = ob->x;	958	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 */	959	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
933	}	960	}
934		961
935	op = tmp;	962	op = tmp;
		963	}
		964	}
936	}	965	}
937	}	966
		967	// hack to ensure that freed objects still have a valid map
		968	{
		969	static maptile *freed_map; // freed objects are moved here to avoid crashes
		970
		971	if (!freed_map)
		972	{
		973	freed_map = new maptile;
		974
		975	freed_map->name = "/internal/freed_objects_map";
		976	freed_map->width = 3;
		977	freed_map->height = 3;
		978
		979	freed_map->allocate ();
938	}	980	}
		981
		982	map = freed_map;
		983	x = 1;
		984	y = 1;
		985	}
		986
		987	// clear those pointers that likely might have circular references to us
		988	owner = 0;
		989	enemy = 0;
		990	attacked_by = 0;
		991
		992	// only relevant for players(?), but make sure of it anyways
		993	contr = 0;
939		994
940	/* Remove object from the active list */	995	/* Remove object from the active list */
941	ob->speed = 0;	996	speed = 0;
942	update_ob_speed (ob);	997	update_ob_speed (this);
943		998
944	SET_FLAG (ob, FLAG_FREED);	999	unlink ();
945	ob->count = 0;
946		1000
947	/* Remove this object from the list of used objects */	1001	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	}	1002	}
971		1003
972	/*	1004	/*
973	* sub_weight() recursively (outwards) subtracts a number from the	1005	* sub_weight() recursively (outwards) subtracts a number from the
974	* weight of an object (and what is carried by it's environment(s)).	1006	* weight of an object (and what is carried by it's environment(s)).
975	*/	1007	*/
976		1008	void
977	void sub_weight (object *op, signed long weight) {	1009	sub_weight (object *op, signed long weight)
		1010	{
978	while (op != NULL) {	1011	while (op != NULL)
		1012	{
979	if (op->type == CONTAINER) {	1013	if (op->type == CONTAINER)
980	weight=(signed long)(weight*(100-op->stats.Str)/100);	1014	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
981	}	1015
982	op->carrying-=weight;	1016	op->carrying -= weight;
983	op = op->env;	1017	op = op->env;
984	}	1018	}
985	}	1019	}
986		1020
987	/* remove_ob(op):	1021	/* op->remove ():
988	* This function removes the object op from the linked list of objects	1022	* 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	1023	* which it is currently tied to. When this function is done, the
990	* object will have no environment. If the object previously had an	1024	* object will have no environment. If the object previously had an
991	* environment, the x and y coordinates will be updated to	1025	* environment, the x and y coordinates will be updated to
992	* the previous environment.	1026	* the previous environment.
993	* Beware: This function is called from the editor as well!	1027	* Beware: This function is called from the editor as well!
994	*/	1028	*/
995		1029	void
996	void remove_ob(object *op) {	1030	object::remove ()
		1031	{
997	object *tmp,*last=NULL;	1032	object *tmp, *last = 0;
998	object *otmp;	1033	object *otmp;
999	tag_t tag;	1034
1000	int check_walk_off;	1035	int check_walk_off;
1001	mapstruct *m;
1002	sint16 x,y;
1003
1004		1036
1005	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1037	if (QUERY_FLAG (this, FLAG_REMOVED))
1006	dump_object(op);	1038	return;
1007	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1008		1039
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);	1040	SET_FLAG (this, FLAG_REMOVED);
1025		1041
		1042	if (more)
		1043	more->remove ();
		1044
1026	/*	1045	/*
1027	* In this case, the object to be removed is in someones	1046	* In this case, the object to be removed is in someones
1028	* inventory.	1047	* inventory.
1029	*/	1048	*/
1030	if(op->env!=NULL) {	1049	if (env)
		1050	{
1031	if(op->nrof)	1051	if (nrof)
1032	sub_weight(op->env, op->weight*op->nrof);	1052	sub_weight (env, weight * nrof);
1033	else	1053	else
1034	sub_weight(op->env, op->weight+op->carrying);	1054	sub_weight (env, weight + carrying);
1035		1055
1036	/* NO_FIX_PLAYER is set when a great many changes are being	1056	/* NO_FIX_PLAYER is set when a great many changes are being
1037	* made to players inventory. If set, avoiding the call	1057	* made to players inventory. If set, avoiding the call
1038	* to save cpu time.	1058	* to save cpu time.
1039	*/	1059	*/
1040	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1060	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);	1061	fix_player (otmp);
1043		1062
1044	if(op->above!=NULL)	1063	if (above != NULL)
1045	op->above->below=op->below;	1064	above->below = below;
1046	else	1065	else
1047	op->env->inv=op->below;	1066	env->inv = below;
1048		1067
1049	if(op->below!=NULL)	1068	if (below != NULL)
1050	op->below->above=op->above;	1069	below->above = above;
1051		1070
1052	/* we set up values so that it could be inserted into	1071	/* we set up values so that it could be inserted into
1053	* the map, but we don't actually do that - it is up	1072	* the map, but we don't actually do that - it is up
1054	* to the caller to decide what we want to do.	1073	* to the caller to decide what we want to do.
		1074	*/
		1075	x = env->x, y = env->y;
		1076	map = env->map;
		1077	above = 0, below = 0;
		1078	env = 0;
		1079	}
		1080	else if (map)
		1081	{
		1082	/* Re did the following section of code - it looks like it had
		1083	* lots of logic for things we no longer care about
		1084	*/
		1085
		1086	/* link the object above us */
		1087	if (above)
		1088	above->below = below;
		1089	else
		1090	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
		1091
		1092	/* Relink the object below us, if there is one */
		1093	if (below)
		1094	below->above = above;
		1095	else
		1096	{
		1097	/* Nothing below, which means we need to relink map object for this space
		1098	* use translated coordinates in case some oddness with map tiling is
		1099	* evident
1055	*/	1100	*/
1056	op->x=op->env->x,op->y=op->env->y;	1101	if (GET_MAP_OB (map, x, y) != this)
1057	op->map=op->env->map;	1102	{
1058	op->above=NULL,op->below=NULL;	1103	char *dump = dump_object (this);
1059	op->env=NULL;	1104	LOG (llevError,
		1105	"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);
		1106	free (dump);
		1107	dump = dump_object (GET_MAP_OB (map, x, y));
		1108	LOG (llevError, "%s\n", dump);
		1109	free (dump);
		1110	}
		1111
		1112	SET_MAP_OB (map, x, y, above); /* goes on above it. */
		1113	}
		1114
		1115	above = 0;
		1116	below = 0;
		1117
		1118	if (map->in_memory == MAP_SAVING)
1060	return;	1119	return;
1061	}
1062		1120
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);	1121	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1122
1118	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1123	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1124	{
1119	/* No point updating the players look faces if he is the object	1125	/* No point updating the players look faces if he is the object
1120	* being removed.	1126	* being removed.
1121	*/	1127	*/
1122		1128
1123	if(tmp->type==PLAYER && tmp!=op) {	1129	if (tmp->type == PLAYER && tmp != this)
		1130	{
1124	/* If a container that the player is currently using somehow gets	1131	/* If a container that the player is currently using somehow gets
1125	* removed (most likely destroyed), update the player view	1132	* removed (most likely destroyed), update the player view
1126	* appropriately.	1133	* appropriately.
1127	*/	1134	*/
1128	if (tmp->container==op) {	1135	if (tmp->container == this)
		1136	{
1129	CLEAR_FLAG(op, FLAG_APPLIED);	1137	CLEAR_FLAG (this, FLAG_APPLIED);
1130	tmp->container=NULL;	1138	tmp->container = 0;
		1139	}
		1140
		1141	tmp->contr->socket->update_look = 1;
1131	}	1142	}
1132	tmp->contr->socket.update_look=1;	1143
1133	}
1134	/* See if player moving off should effect something */	1144	/* See if player moving off should effect something */
1135	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1145	if (check_walk_off
		1146	&& ((move_type & tmp->move_off)
1136	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1147	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1137		1148	{
1138	move_apply(tmp, op, NULL);	1149	move_apply (tmp, this, 0);
		1150
1139	if (was_destroyed (op, tag)) {	1151	if (destroyed ())
1140	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1152	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1141	"leaving object\n", &tmp->name, &tmp->arch->name);
1142	}	1153	}
1143	}
1144		1154
1145	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1155	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1146		1156
1147	if(tmp->above == tmp)	1157	if (tmp->above == tmp)
1148	tmp->above = NULL;	1158	tmp->above = 0;
		1159
1149	last=tmp;	1160	last = tmp;
1150	}	1161	}
		1162
1151	/* last == NULL of there are no objects on this space */	1163	/* last == NULL of there are no objects on this space */
1152	if (last==NULL) {	1164	if (!last)
		1165	{
1153	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1166	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1154	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1167	* 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	1168	* those out anyways, and if there are any flags set right now, they won't
1156	* be correct anyways.	1169	* be correct anyways.
1157	*/	1170	*/
1158	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1171	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1159	update_position(op->map, op->x, op->y);	1172	update_position (map, x, y);
1160	}	1173	}
1161	else	1174	else
1162	update_object(last, UP_OBJ_REMOVE);	1175	update_object (last, UP_OBJ_REMOVE);
1163		1176
1164	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1177	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1165	update_all_los(op->map, op->x, op->y);	1178	update_all_los (map, x, y);
1166		1179	}
1167	}	1180	}
1168		1181
1169	/*	1182	/*
1170	* merge_ob(op,top):	1183	* merge_ob(op,top):
1171	*	1184	*
1172	* This function goes through all objects below and including top, and	1185	* This function goes through all objects below and including top, and
1173	* merges op to the first matching object.	1186	* merges op to the first matching object.
1174	* If top is NULL, it is calculated.	1187	* If top is NULL, it is calculated.
1175	* Returns pointer to object if it succeded in the merge, otherwise NULL	1188	* Returns pointer to object if it succeded in the merge, otherwise NULL
1176	*/	1189	*/
1177		1190	object *
1178	object *merge_ob(object *op, object *top) {	1191	merge_ob (object *op, object *top)
		1192	{
1179	if(!op->nrof)	1193	if (!op->nrof)
1180	return 0;	1194	return 0;
		1195
1181	if(top==NULL)	1196	if (top == NULL)
1182	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1197	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1198
1183	for(;top!=NULL;top=top->below) {	1199	for (; top != NULL; top = top->below)
		1200	{
1184	if(top==op)	1201	if (top == op)
1185	continue;	1202	continue;
1186	if (CAN_MERGE(op,top))	1203
1187	{	1204	if (object::can_merge (op, top))
		1205	{
1188	top->nrof+=op->nrof;	1206	top->nrof += op->nrof;
		1207
1189	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1208	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1190	op->weight = 0; /* Don't want any adjustements now */	1209	op->weight = 0; /* Don't want any adjustements now */
1191	remove_ob(op);	1210	op->destroy ();
1192	free_object(op);
1193	return top;	1211	return top;
1194	}	1212	}
1195	}	1213	}
		1214
1196	return NULL;	1215	return 0;
1197	}	1216	}
1198		1217
1199	/*	1218	/*
1200	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1219	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1201	* job preparing multi-part monsters	1220	* job preparing multi-part monsters
1202	*/	1221	*/
		1222	object *
1203	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1223	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1224	{
1204	object* tmp;	1225	object *tmp;
		1226
1205	if (op->head)	1227	if (op->head)
1206	op=op->head;	1228	op = op->head;
		1229
1207	for (tmp=op;tmp;tmp=tmp->more){	1230	for (tmp = op; tmp; tmp = tmp->more)
		1231	{
1208	tmp->x=x+tmp->arch->clone.x;	1232	tmp->x = x + tmp->arch->clone.x;
1209	tmp->y=y+tmp->arch->clone.y;	1233	tmp->y = y + tmp->arch->clone.y;
1210	}	1234	}
		1235
1211	return insert_ob_in_map (op, m, originator, flag);	1236	return insert_ob_in_map (op, m, originator, flag);
1212	}	1237	}
1213		1238
1214	/*	1239	/*
1215	* insert_ob_in_map (op, map, originator, flag):	1240	* insert_ob_in_map (op, map, originator, flag):
1216	* This function inserts the object in the two-way linked list	1241	* This function inserts the object in the two-way linked list
…		…
1230	* new object if 'op' was merged with other object	1255	* new object if 'op' was merged with other object
1231	* NULL if 'op' was destroyed	1256	* NULL if 'op' was destroyed
1232	* just 'op' otherwise	1257	* just 'op' otherwise
1233	*/	1258	*/
1234		1259
		1260	object *
1235	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1261	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1236	{	1262	{
1237	object *tmp, *top, *floor=NULL;	1263	object *tmp, *top, *floor = NULL;
1238	sint16 x,y;	1264	sint16 x, y;
1239		1265
1240	if (QUERY_FLAG (op, FLAG_FREED)) {	1266	if (QUERY_FLAG (op, FLAG_FREED))
		1267	{
1241	LOG (llevError, "Trying to insert freed object!\n");	1268	LOG (llevError, "Trying to insert freed object!\n");
		1269	return NULL;
		1270	}
		1271
		1272	if (m == NULL)
		1273	{
		1274	char *dump = dump_object (op);
		1275	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1276	free (dump);
		1277	return op;
		1278	}
		1279
		1280	if (out_of_map (m, op->x, op->y))
		1281	{
		1282	char *dump = dump_object (op);
		1283	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
		1284	#ifdef MANY_CORES
		1285	/* Better to catch this here, as otherwise the next use of this object
		1286	* is likely to cause a crash. Better to find out where it is getting
		1287	* improperly inserted.
		1288	*/
		1289	abort ();
		1290	#endif
		1291	free (dump);
		1292	return op;
		1293	}
		1294
		1295	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1296	{
		1297	char *dump = dump_object (op);
		1298	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1299	free (dump);
		1300	return op;
		1301	}
		1302
		1303	if (op->more != NULL)
		1304	{
		1305	/* The part may be on a different map. */
		1306
		1307	object *more = op->more;
		1308
		1309	/* We really need the caller to normalize coordinates - if
		1310	* we set the map, that doesn't work if the location is within
		1311	* a map and this is straddling an edge. So only if coordinate
		1312	* is clear wrong do we normalize it.
		1313	*/
		1314	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1315	more->map = get_map_from_coord (m, &more->x, &more->y);
		1316	else if (!more->map)
		1317	{
		1318	/* For backwards compatibility - when not dealing with tiled maps,
		1319	* more->map should always point to the parent.
		1320	*/
		1321	more->map = m;
		1322	}
		1323
		1324	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1325	{
		1326	if (!op->head)
		1327	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1328
		1329	return NULL;
		1330	}
		1331	}
		1332
		1333	CLEAR_FLAG (op, FLAG_REMOVED);
		1334
		1335	/* Ideally, the caller figures this out. However, it complicates a lot
		1336	* of areas of callers (eg, anything that uses find_free_spot would now
		1337	* need extra work
		1338	*/
		1339	op->map = get_map_from_coord (m, &op->x, &op->y);
		1340	x = op->x;
		1341	y = op->y;
		1342
		1343	/* this has to be done after we translate the coordinates.
		1344	*/
		1345	if (op->nrof && !(flag & INS_NO_MERGE))
		1346	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1347	if (object::can_merge (op, tmp))
		1348	{
		1349	op->nrof += tmp->nrof;
		1350	tmp->destroy ();
		1351	}
		1352
		1353	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1354	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1355
		1356	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1357	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1358
		1359	if (flag & INS_BELOW_ORIGINATOR)
		1360	{
		1361	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1362	{
		1363	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1364	abort ();
		1365	}
		1366
		1367	op->above = originator;
		1368	op->below = originator->below;
		1369
		1370	if (op->below)
		1371	op->below->above = op;
		1372	else
		1373	SET_MAP_OB (op->map, op->x, op->y, op);
		1374
		1375	/* since *below* originator, no need to update top */
		1376	originator->below = op;
		1377	}
		1378	else
		1379	{
		1380	/* If there are other objects, then */
		1381	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1382	{
		1383	object *last = NULL;
		1384
		1385	/*
		1386	* If there are multiple objects on this space, we do some trickier handling.
		1387	* We've already dealt with merging if appropriate.
		1388	* Generally, we want to put the new object on top. But if
		1389	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1390	* floor, we want to insert above that and no further.
		1391	* Also, if there are spell objects on this space, we stop processing
		1392	* once we get to them. This reduces the need to traverse over all of
		1393	* them when adding another one - this saves quite a bit of cpu time
		1394	* when lots of spells are cast in one area. Currently, it is presumed
		1395	* that flying non pickable objects are spell objects.
		1396	*/
		1397
		1398	while (top != NULL)
		1399	{
		1400	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1401	floor = top;
		1402
		1403	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1404	{
		1405	/* We insert above top, so we want this object below this */
		1406	top = top->below;
		1407	break;
		1408	}
		1409
		1410	last = top;
		1411	top = top->above;
		1412	}
		1413
		1414	/* Don't want top to be NULL, so set it to the last valid object */
		1415	top = last;
		1416
		1417	/* We let update_position deal with figuring out what the space
		1418	* looks like instead of lots of conditions here.
		1419	* makes things faster, and effectively the same result.
		1420	*/
		1421
		1422	/* Have object 'fall below' other objects that block view.
		1423	* Unless those objects are exits, type 66
		1424	* If INS_ON_TOP is used, don't do this processing
		1425	* Need to find the object that in fact blocks view, otherwise
		1426	* stacking is a bit odd.
		1427	*/
		1428	if (!(flag & INS_ON_TOP) &&
		1429	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1430	{
		1431	for (last = top; last != floor; last = last->below)
		1432	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1433	break;
		1434	/* Check to see if we found the object that blocks view,
		1435	* and make sure we have a below pointer for it so that
		1436	* we can get inserted below this one, which requires we
		1437	* set top to the object below us.
		1438	*/
		1439	if (last && last->below && last != floor)
		1440	top = last->below;
		1441	}
		1442	} /* If objects on this space */
		1443
		1444	if (flag & INS_MAP_LOAD)
		1445	top = GET_MAP_TOP (op->map, op->x, op->y);
		1446
		1447	if (flag & INS_ABOVE_FLOOR_ONLY)
		1448	top = floor;
		1449
		1450	/* Top is the object that our object (op) is going to get inserted above.
		1451	*/
		1452
		1453	/* First object on this space */
		1454	if (!top)
		1455	{
		1456	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1457
		1458	if (op->above)
		1459	op->above->below = op;
		1460
		1461	op->below = NULL;
		1462	SET_MAP_OB (op->map, op->x, op->y, op);
		1463	}
		1464	else
		1465	{ /* get inserted into the stack above top */
		1466	op->above = top->above;
		1467
		1468	if (op->above)
		1469	op->above->below = op;
		1470
		1471	op->below = top;
		1472	top->above = op;
		1473	}
		1474
		1475	if (op->above == NULL)
		1476	SET_MAP_TOP (op->map, op->x, op->y, op);
		1477	} /* else not INS_BELOW_ORIGINATOR */
		1478
		1479	if (op->type == PLAYER)
		1480	op->contr->do_los = 1;
		1481
		1482	/* If we have a floor, we know the player, if any, will be above
		1483	* it, so save a few ticks and start from there.
		1484	*/
		1485	if (!(flag & INS_MAP_LOAD))
		1486	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1487	if (tmp->type == PLAYER)
		1488	tmp->contr->socket->update_look = 1;
		1489
		1490	/* If this object glows, it may affect lighting conditions that are
		1491	* visible to others on this map. But update_all_los is really
		1492	* an inefficient way to do this, as it means los for all players
		1493	* on the map will get recalculated. The players could very well
		1494	* be far away from this change and not affected in any way -
		1495	* this should get redone to only look for players within range,
		1496	* or just updating the P_NEED_UPDATE for spaces within this area
		1497	* of effect may be sufficient.
		1498	*/
		1499	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1500	update_all_los (op->map, op->x, op->y);
		1501
		1502	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1503	update_object (op, UP_OBJ_INSERT);
		1504
		1505	/* Don't know if moving this to the end will break anything. However,
		1506	* we want to have update_look set above before calling this.
		1507	*
		1508	* check_move_on() must be after this because code called from
		1509	* check_move_on() depends on correct map flags (so functions like
		1510	* blocked() and wall() work properly), and these flags are updated by
		1511	* update_object().
		1512	*/
		1513
		1514	/* if this is not the head or flag has been passed, don't check walk on status */
		1515	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1516	{
		1517	if (check_move_on (op, originator))
1242	return NULL;	1518	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		1519
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	1520	/* If we are a multi part object, lets work our way through the check
1455	* walk on's.	1521	* walk on's.
1456	*/	1522	*/
1457	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1523	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1458	if (check_move_on (tmp, originator))	1524	if (check_move_on (tmp, originator))
1459	return NULL;	1525	return NULL;
1460	}	1526	}
		1527
1461	return op;	1528	return op;
1462	}	1529	}
1463		1530
1464	/* this function inserts an object in the map, but if it	1531	/* 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.	1532	* 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.	1533	* op is the object to insert it under: supplies x and the map.
1467	*/	1534	*/
		1535	void
1468	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1536	replace_insert_ob_in_map (const char *arch_string, object *op)
		1537	{
1469	object *tmp;	1538	object *
1470	object *tmp1;	1539	tmp;
		1540	object *
		1541	tmp1;
1471		1542
1472	/* first search for itself and remove any old instances */	1543	/* first search for itself and remove any old instances */
1473		1544
1474	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1545	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 */ {	1546	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1476	remove_ob(tmp);	1547	tmp->destroy ();
1477	free_object(tmp);
1478	}
1479	}
1480		1548
1481	tmp1=arch_to_object(find_archetype(arch_string));	1549	tmp1 = arch_to_object (archetype::find (arch_string));
1482		1550
1483		1551	tmp1->x = op->x;
1484	tmp1->x = op->x; tmp1->y = op->y;	1552	tmp1->y = op->y;
1485	insert_ob_in_map(tmp1,op->map,op,0);	1553	insert_ob_in_map (tmp1, op->map, op, 0);
1486	}	1554	}
1487		1555
1488	/*	1556	/*
1489	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1557	* 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	1558	* is returned contains nr objects, and the remaining parts contains
1491	* the rest (or is removed and freed if that number is 0).	1559	* the rest (or is removed and freed if that number is 0).
1492	* On failure, NULL is returned, and the reason put into the	1560	* On failure, NULL is returned, and the reason put into the
1493	* global static errmsg array.	1561	* global static errmsg array.
1494	*/	1562	*/
1495		1563
		1564	object *
1496	object *get_split_ob(object *orig_ob, uint32 nr) {	1565	get_split_ob (object *orig_ob, uint32 nr)
		1566	{
1497	object *newob;	1567	object *newob;
1498	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1568	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1499		1569
1500	if(orig_ob->nrof<nr) {	1570	if (orig_ob->nrof < nr)
1501	sprintf(errmsg,"There are only %d %ss.",	1571	{
1502	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1572	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1503	return NULL;	1573	return NULL;
1504	}	1574	}
		1575
1505	newob = object_create_clone(orig_ob);	1576	newob = object_create_clone (orig_ob);
		1577
1506	if((orig_ob->nrof-=nr)<1) {	1578	if ((orig_ob->nrof -= nr) < 1)
1507	if ( ! is_removed)	1579	orig_ob->destroy (1);
1508	remove_ob(orig_ob);
1509	free_object2(orig_ob, 1);
1510	}
1511	else if ( ! is_removed) {	1580	else if (!is_removed)
		1581	{
1512	if(orig_ob->env!=NULL)	1582	if (orig_ob->env != NULL)
1513	sub_weight (orig_ob->env,orig_ob->weight*nr);	1583	sub_weight (orig_ob->env, orig_ob->weight * nr);
1514	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1584	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1585	{
1515	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1586	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");	1587	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1518	return NULL;	1588	return NULL;
1519	}	1589	}
1520	}	1590	}
		1591
1521	newob->nrof=nr;	1592	newob->nrof = nr;
1522		1593
1523	return newob;	1594	return newob;
1524	}	1595	}
1525		1596
1526	/*	1597	/*
1527	* decrease_ob_nr(object, number) decreases a specified number from	1598	* decrease_ob_nr(object, number) decreases a specified number from
1528	* the amount of an object. If the amount reaches 0, the object	1599	* the amount of an object. If the amount reaches 0, the object
1529	* is subsequently removed and freed.	1600	* is subsequently removed and freed.
1530	*	1601	*
1531	* Return value: 'op' if something is left, NULL if the amount reached 0	1602	* Return value: 'op' if something is left, NULL if the amount reached 0
1532	*/	1603	*/
1533		1604
		1605	object *
1534	object *decrease_ob_nr (object *op, uint32 i)	1606	decrease_ob_nr (object *op, uint32 i)
1535	{	1607	{
1536	object *tmp;	1608	object *tmp;
1537	player *pl;	1609	player *pl;
1538		1610
1539	if (i == 0) /* objects with op->nrof require this check */	1611	if (i == 0) /* objects with op->nrof require this check */
1540	return op;	1612	return op;
1541		1613
1542	if (i > op->nrof)	1614	if (i > op->nrof)
1543	i = op->nrof;	1615	i = op->nrof;
1544		1616
1545	if (QUERY_FLAG (op, FLAG_REMOVED))	1617	if (QUERY_FLAG (op, FLAG_REMOVED))
		1618	op->nrof -= i;
		1619	else if (op->env != NULL)
		1620	{
		1621	/* is this object in the players inventory, or sub container
		1622	* therein?
		1623	*/
		1624	tmp = is_player_inv (op->env);
		1625	/* nope. Is this a container the player has opened?
		1626	* If so, set tmp to that player.
		1627	* IMO, searching through all the players will mostly
		1628	* likely be quicker than following op->env to the map,
		1629	* and then searching the map for a player.
		1630	*/
		1631	if (!tmp)
		1632	{
		1633	for (pl = first_player; pl; pl = pl->next)
		1634	if (pl->ob->container == op->env)
		1635	break;
		1636	if (pl)
		1637	tmp = pl->ob;
		1638	else
		1639	tmp = NULL;
		1640	}
		1641
		1642	if (i < op->nrof)
		1643	{
		1644	sub_weight (op->env, op->weight * i);
		1645	op->nrof -= i;
		1646	if (tmp)
		1647	{
		1648	esrv_send_item (tmp, op);
		1649	}
		1650	}
		1651	else
		1652	{
		1653	op->remove ();
		1654	op->nrof = 0;
		1655	if (tmp)
		1656	{
		1657	esrv_del_item (tmp->contr, op->count);
		1658	}
		1659	}
1546	{	1660	}
		1661	else
		1662	{
		1663	object *above = op->above;
		1664
		1665	if (i < op->nrof)
1547	op->nrof -= i;	1666	op->nrof -= i;
1548	}	1667	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	}	1668	{
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);	1669	op->remove ();
1576	op->nrof = 0;	1670	op->nrof = 0;
1577	if (tmp) {
1578	esrv_del_item(tmp->contr, op->count);
1579	}	1671	}
1580	}
1581	}
1582	else
1583	{
1584	object *above = op->above;
1585		1672
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 */	1673	/* Since we just removed op, op->above is null */
1593	for (tmp = above; tmp != NULL; tmp = tmp->above)	1674	for (tmp = above; tmp != NULL; tmp = tmp->above)
1594	if (tmp->type == PLAYER) {	1675	if (tmp->type == PLAYER)
		1676	{
1595	if (op->nrof)	1677	if (op->nrof)
1596	esrv_send_item(tmp, op);	1678	esrv_send_item (tmp, op);
1597	else	1679	else
1598	esrv_del_item(tmp->contr, op->count);	1680	esrv_del_item (tmp->contr, op->count);
1599	}	1681	}
1600	}	1682	}
1601		1683
1602	if (op->nrof) {	1684	if (op->nrof)
1603	return op;	1685	return op;
1604	} else {	1686	else
1605	free_object (op);	1687	{
		1688	op->destroy ();
1606	return NULL;	1689	return NULL;
1607	}	1690	}
1608	}	1691	}
1609		1692
1610	/*	1693	/*
1611	* add_weight(object, weight) adds the specified weight to an object,	1694	* add_weight(object, weight) adds the specified weight to an object,
1612	* and also updates how much the environment(s) is/are carrying.	1695	* and also updates how much the environment(s) is/are carrying.
1613	*/	1696	*/
1614		1697
		1698	void
1615	void add_weight (object *op, signed long weight) {	1699	add_weight (object *op, signed long weight)
		1700	{
1616	while (op!=NULL) {	1701	while (op != NULL)
		1702	{
1617	if (op->type == CONTAINER) {	1703	if (op->type == CONTAINER)
1618	weight=(signed long)(weight*(100-op->stats.Str)/100);	1704	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1619	}	1705
1620	op->carrying+=weight;	1706	op->carrying += weight;
1621	op=op->env;	1707	op = op->env;
1622	}	1708	}
1623	}	1709	}
1624		1710
		1711	object *
		1712	insert_ob_in_ob (object *op, object *where)
		1713	{
		1714	if (!where)
		1715	{
		1716	char *dump = dump_object (op);
		1717	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1718	free (dump);
		1719	return op;
		1720	}
		1721
		1722	if (where->head)
		1723	{
		1724	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1725	where = where->head;
		1726	}
		1727
		1728	return where->insert (op);
		1729	}
		1730
1625	/*	1731	/*
1626	* insert_ob_in_ob(op,environment):	1732	* env->insert (op)
1627	* This function inserts the object op in the linked list	1733	* This function inserts the object op in the linked list
1628	* inside the object environment.	1734	* inside the object environment.
1629	*	1735	*
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	1736	* The function returns now pointer to inserted item, and return value can
1636	* be != op, if items are merged. -Tero	1737	* be != op, if items are merged. -Tero
1637	*/	1738	*/
1638		1739
1639	object *insert_ob_in_ob(object *op,object *where) {	1740	object *
		1741	object::insert (object *op)
		1742	{
1640	object *tmp, *otmp;	1743	object *tmp, *otmp;
1641		1744
1642	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1745	if (!QUERY_FLAG (op, FLAG_REMOVED))
1643	dump_object(op);	1746	op->remove ();
1644	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1747
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) {	1748	if (op->more)
		1749	{
1658	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1750	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1659	&op->name, op->count);
1660	return op;	1751	return op;
1661	}	1752	}
		1753
1662	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1754	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1663	CLEAR_FLAG(op, FLAG_REMOVED);	1755	CLEAR_FLAG (op, FLAG_REMOVED);
1664	if(op->nrof) {	1756	if (op->nrof)
		1757	{
1665	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1758	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1666	if ( CAN_MERGE(tmp,op) ) {	1759	if (object::can_merge (tmp, op))
		1760	{
1667	/* return the original object and remove inserted object	1761	/* return the original object and remove inserted object
1668	(client needs the original object) */	1762	(client needs the original object) */
1669	tmp->nrof += op->nrof;	1763	tmp->nrof += op->nrof;
1670	/* Weight handling gets pretty funky. Since we are adding to	1764	/* Weight handling gets pretty funky. Since we are adding to
1671	* tmp->nrof, we need to increase the weight.	1765	* tmp->nrof, we need to increase the weight.
1672	*/	1766	*/
1673	add_weight (where, op->weight*op->nrof);	1767	add_weight (this, op->weight * op->nrof);
1674	SET_FLAG(op, FLAG_REMOVED);	1768	SET_FLAG (op, FLAG_REMOVED);
1675	free_object(op); /* free the inserted object */	1769	op->destroy (); /* free the inserted object */
1676	op = tmp;	1770	op = tmp;
1677	remove_ob (op); /* and fix old object's links */	1771	op->remove (); /* and fix old object's links */
1678	CLEAR_FLAG(op, FLAG_REMOVED);	1772	CLEAR_FLAG (op, FLAG_REMOVED);
1679	break;	1773	break;
1680	}	1774	}
1681		1775
1682	/* I assume combined objects have no inventory	1776	/* I assume combined objects have no inventory
1683	* We add the weight - this object could have just been removed	1777	* We add the weight - this object could have just been removed
1684	* (if it was possible to merge). calling remove_ob will subtract	1778	* (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	1779	* the weight, so we need to add it in again, since we actually do
1686	* the linking below	1780	* the linking below
1687	*/	1781	*/
1688	add_weight (where, op->weight*op->nrof);	1782	add_weight (this, op->weight * op->nrof);
		1783	}
1689	} else	1784	else
1690	add_weight (where, (op->weight+op->carrying));	1785	add_weight (this, (op->weight + op->carrying));
1691		1786
1692	otmp=is_player_inv(where);	1787	otmp = is_player_inv (this);
1693	if (otmp&&otmp->contr!=NULL) {	1788	if (otmp && otmp->contr)
1694	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1789	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1695	fix_player(otmp);	1790	fix_player (otmp);
1696	}
1697		1791
1698	op->map=NULL;	1792	op->map = NULL;
1699	op->env=where;	1793	op->env = this;
1700	op->above=NULL;	1794	op->above = NULL;
1701	op->below=NULL;	1795	op->below = NULL;
1702	op->x=0,op->y=0;	1796	op->x = 0, op->y = 0;
1703		1797
1704	/* reset the light list and los of the players on the map */	1798	/* reset the light list and los of the players on the map */
1705	if((op->glow_radius!=0)&&where->map)	1799	if ((op->glow_radius != 0) && map)
1706	{	1800	{
1707	#ifdef DEBUG_LIGHTS	1801	#ifdef DEBUG_LIGHTS
1708	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1802	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1709	op->name);
1710	#endif /* DEBUG_LIGHTS */	1803	#endif /* DEBUG_LIGHTS */
1711	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1804	if (MAP_DARKNESS (map))
		1805	update_all_los (map, x, y);
1712	}	1806	}
1713		1807
1714	/* Client has no idea of ordering so lets not bother ordering it here.	1808	/* Client has no idea of ordering so lets not bother ordering it here.
1715	* It sure simplifies this function...	1809	* It sure simplifies this function...
1716	*/	1810	*/
1717	if (where->inv==NULL)	1811	if (!inv)
1718	where->inv=op;	1812	inv = op;
1719	else {	1813	else
		1814	{
1720	op->below = where->inv;	1815	op->below = inv;
1721	op->below->above = op;	1816	op->below->above = op;
1722	where->inv = op;	1817	inv = op;
1723	}	1818	}
		1819
1724	return op;	1820	return op;
1725	}	1821	}
1726		1822
1727	/*	1823	/*
1728	* Checks if any objects has a move_type that matches objects	1824	* 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	1839	* 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	1840	* object being inserted. insert_ob_in_map may not put new objects
1745	* on top.	1841	* on top.
1746	*/	1842	*/
1747		1843
		1844	int
1748	int check_move_on (object *op, object *originator)	1845	check_move_on (object *op, object *originator)
1749	{	1846	{
1750	object *tmp;	1847	object *tmp;
1751	tag_t tag;
1752	mapstruct *m=op->map;	1848	maptile *m = op->map;
1753	int x=op->x, y=op->y;	1849	int x = op->x, y = op->y;
		1850
1754	MoveType move_on, move_slow, move_block;	1851	MoveType move_on, move_slow, move_block;
1755		1852
1756	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1853	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1757	return 0;	1854	return 0;
1758		1855
1759	tag = op->count;
1760
1761	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1856	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);	1857	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);	1858	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1764		1859
1765	/* if nothing on this space will slow op down or be applied,	1860	/* 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	1861	* 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	1862	* is set, as lots of objects don't have it set - we treat that
1768	* as walking.	1863	* as walking.
1769	*/	1864	*/
1770	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1865	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1771	return 0;	1866	return 0;
1772		1867
1773	/* This is basically inverse logic of that below - basically,	1868	/* This is basically inverse logic of that below - basically,
1774	* if the object can avoid the move on or slow move, they do so,	1869	* 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	1870	* but can't do it if the alternate movement they are using is
1776	* blocked. Logic on this seems confusing, but does seem correct.	1871	* blocked. Logic on this seems confusing, but does seem correct.
1777	*/	1872	*/
1778	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1873	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;	1874	return 0;
1780		1875
1781	/* The objects have to be checked from top to bottom.	1876	/* The objects have to be checked from top to bottom.
1782	* Hence, we first go to the top:	1877	* Hence, we first go to the top:
1783	*/	1878	*/
1784		1879
1785	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1880	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) {	1881	{
1787	/* Trim the search when we find the first other spell effect	1882	/* Trim the search when we find the first other spell effect
1788	* this helps performance so that if a space has 50 spell objects,	1883	* this helps performance so that if a space has 50 spell objects,
1789	* we don't need to check all of them.	1884	* we don't need to check all of them.
1790	*/	1885	*/
1791	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1886	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1887	break;
		1888	}
		1889
		1890	for (; tmp; tmp = tmp->below)
1792	}	1891	{
1793	for(;tmp!=NULL; tmp=tmp->below) {	1892	if (tmp == op)
1794	if (tmp == op) continue; /* Can't apply yourself */	1893	continue; /* Can't apply yourself */
1795		1894
1796	/* Check to see if one of the movement types should be slowed down.	1895	/* 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	1896	* Second check makes sure that the movement types not being slowed
1798	* (~slow_move) is not blocked on this space - just because the	1897	* (~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	1898	* 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.	1899	* swim on that space, can't use it to avoid the penalty.
1801	*/	1900	*/
1802	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1901	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1902	{
1803	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1903	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)) {	1904	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1905	{
1806		1906
1807	float diff;	1907	float
1808
1809	diff = tmp->move_slow_penalty*FABS(op->speed);	1908	diff = tmp->move_slow_penalty * FABS (op->speed);
		1909
1810	if (op->type == PLAYER) {	1910	if (op->type == PLAYER)
1811	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1911	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))) {	1912	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1813	diff /= 4.0;	1913	diff /= 4.0;
1814	}	1914
1815	}
1816	op->speed_left -= diff;	1915	op->speed_left -= diff;
1817	}	1916	}
1818	}	1917	}
1819		1918
1820	/* Basically same logic as above, except now for actual apply. */	1919	/* Basically same logic as above, except now for actual apply. */
1821	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1920	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)) {	1921	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1824		1922	{
1825	move_apply(tmp, op, originator);	1923	move_apply (tmp, op, originator);
		1924
1826	if (was_destroyed (op, tag))	1925	if (op->destroyed ())
1827	return 1;	1926	return 1;
1828		1927
1829	/* what the person/creature stepped onto has moved the object	1928	/* what the person/creature stepped onto has moved the object
1830	* someplace new. Don't process any further - if we did,	1929	* someplace new. Don't process any further - if we did,
1831	* have a feeling strange problems would result.	1930	* have a feeling strange problems would result.
1832	*/	1931	*/
1833	if (op->map != m || op->x != x || op->y != y) return 0;	1932	if (op->map != m || op->x != x || op->y != y)
		1933	return 0;
1834	}	1934	}
1835	}	1935	}
		1936
1836	return 0;	1937	return 0;
1837	}	1938	}
1838		1939
1839	/*	1940	/*
1840	* present_arch(arch, map, x, y) searches for any objects with	1941	* present_arch(arch, map, x, y) searches for any objects with
1841	* a matching archetype at the given map and coordinates.	1942	* a matching archetype at the given map and coordinates.
1842	* The first matching object is returned, or NULL if none.	1943	* The first matching object is returned, or NULL if none.
1843	*/	1944	*/
1844		1945
		1946	object *
1845	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1947	present_arch (const archetype *at, maptile *m, int x, int y)
		1948	{
1846	object *tmp;	1949	object *
		1950	tmp;
		1951
1847	if(m==NULL || out_of_map(m,x,y)) {	1952	if (m == NULL || out_of_map (m, x, y))
		1953	{
1848	LOG(llevError,"Present_arch called outside map.\n");	1954	LOG (llevError, "Present_arch called outside map.\n");
1849	return NULL;	1955	return NULL;
1850	}	1956	}
1851	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1957	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1852	if(tmp->arch == at)	1958	if (tmp->arch == at)
1853	return tmp;	1959	return tmp;
1854	return NULL;	1960	return NULL;
1855	}	1961	}
1856		1962
1857	/*	1963	/*
1858	* present(type, map, x, y) searches for any objects with	1964	* present(type, map, x, y) searches for any objects with
1859	* a matching type variable at the given map and coordinates.	1965	* a matching type variable at the given map and coordinates.
1860	* The first matching object is returned, or NULL if none.	1966	* The first matching object is returned, or NULL if none.
1861	*/	1967	*/
1862		1968
		1969	object *
1863	object *present(unsigned char type,mapstruct *m, int x,int y) {	1970	present (unsigned char type, maptile *m, int x, int y)
		1971	{
1864	object *tmp;	1972	object *
		1973	tmp;
		1974
1865	if(out_of_map(m,x,y)) {	1975	if (out_of_map (m, x, y))
		1976	{
1866	LOG(llevError,"Present called outside map.\n");	1977	LOG (llevError, "Present called outside map.\n");
1867	return NULL;	1978	return NULL;
1868	}	1979	}
1869	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1980	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1870	if(tmp->type==type)	1981	if (tmp->type == type)
1871	return tmp;	1982	return tmp;
1872	return NULL;	1983	return NULL;
1873	}	1984	}
1874		1985
1875	/*	1986	/*
1876	* present_in_ob(type, object) searches for any objects with	1987	* present_in_ob(type, object) searches for any objects with
1877	* a matching type variable in the inventory of the given object.	1988	* a matching type variable in the inventory of the given object.
1878	* The first matching object is returned, or NULL if none.	1989	* The first matching object is returned, or NULL if none.
1879	*/	1990	*/
1880		1991
		1992	object *
1881	object *present_in_ob(unsigned char type, const object *op) {	1993	present_in_ob (unsigned char type, const object *op)
		1994	{
1882	object *tmp;	1995	object *
		1996	tmp;
		1997
1883	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1998	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1884	if(tmp->type==type)	1999	if (tmp->type == type)
1885	return tmp;	2000	return tmp;
1886	return NULL;	2001	return NULL;
1887	}	2002	}
1888		2003
1889	/*	2004	/*
…		…
1899	* the object name, not the archetype name. this is so that the	2014	* 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	2015	* spell code can use one object type (force), but change it's name
1901	* to be unique.	2016	* to be unique.
1902	*/	2017	*/
1903		2018
		2019	object *
1904	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2020	present_in_ob_by_name (int type, const char *str, const object *op)
		2021	{
1905	object *tmp;	2022	object *
		2023	tmp;
1906		2024
1907	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2025	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2026	{
1908	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2027	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1909	return tmp;	2028	return tmp;
1910	}	2029	}
1911	return NULL;	2030	return NULL;
1912	}	2031	}
1913		2032
1914	/*	2033	/*
1915	* present_arch_in_ob(archetype, object) searches for any objects with	2034	* present_arch_in_ob(archetype, object) searches for any objects with
1916	* a matching archetype in the inventory of the given object.	2035	* a matching archetype in the inventory of the given object.
1917	* The first matching object is returned, or NULL if none.	2036	* The first matching object is returned, or NULL if none.
1918	*/	2037	*/
1919		2038
		2039	object *
1920	object *present_arch_in_ob(const archetype *at, const object *op) {	2040	present_arch_in_ob (const archetype *at, const object *op)
		2041	{
1921	object *tmp;	2042	object *
		2043	tmp;
		2044
1922	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2045	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1923	if( tmp->arch == at)	2046	if (tmp->arch == at)
1924	return tmp;	2047	return tmp;
1925	return NULL;	2048	return NULL;
1926	}	2049	}
1927		2050
1928	/*	2051	/*
1929	* activate recursively a flag on an object inventory	2052	* activate recursively a flag on an object inventory
1930	*/	2053	*/
		2054	void
1931	void flag_inv(object*op, int flag){	2055	flag_inv (object *op, int flag)
		2056	{
1932	object *tmp;	2057	object *
		2058	tmp;
		2059
1933	if(op->inv)	2060	if (op->inv)
1934	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2061	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2062	{
1935	SET_FLAG(tmp, flag);	2063	SET_FLAG (tmp, flag);
1936	flag_inv(tmp,flag);	2064	flag_inv (tmp, flag);
1937	}	2065	}
1938	}/*	2066	} /*
1939	* desactivate recursively a flag on an object inventory	2067	* desactivate recursively a flag on an object inventory
1940	*/	2068	*/
		2069	void
1941	void unflag_inv(object*op, int flag){	2070	unflag_inv (object *op, int flag)
		2071	{
1942	object *tmp;	2072	object *
		2073	tmp;
		2074
1943	if(op->inv)	2075	if (op->inv)
1944	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2076	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2077	{
1945	CLEAR_FLAG(tmp, flag);	2078	CLEAR_FLAG (tmp, flag);
1946	unflag_inv(tmp,flag);	2079	unflag_inv (tmp, flag);
1947	}	2080	}
1948	}	2081	}
1949		2082
1950	/*	2083	/*
1951	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2084	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1952	* all it's inventory (recursively).	2085	* all it's inventory (recursively).
1953	* If checksums are used, a player will get set_cheat called for	2086	* 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.	2087	* him/her-self and all object carried by a call to this function.
1955	*/	2088	*/
1956		2089
		2090	void
1957	void set_cheat(object *op) {	2091	set_cheat (object *op)
		2092	{
1958	SET_FLAG(op, FLAG_WAS_WIZ);	2093	SET_FLAG (op, FLAG_WAS_WIZ);
1959	flag_inv(op, FLAG_WAS_WIZ);	2094	flag_inv (op, FLAG_WAS_WIZ);
1960	}	2095	}
1961		2096
1962	/*	2097	/*
1963	* find_free_spot(object, map, x, y, start, stop) will search for	2098	* 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	2099	* 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	2114	* 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	2115	* the archetype because that isn't correct if the monster has been
1981	* customized, changed states, etc.	2116	* customized, changed states, etc.
1982	*/	2117	*/
1983		2118
		2119	int
1984	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2120	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2121	{
		2122	int
		2123	i,
1985	int i,index=0, flag;	2124	index = 0, flag;
		2125	static int
1986	static int altern[SIZEOFFREE];	2126	altern[SIZEOFFREE];
1987		2127
1988	for(i=start;i<stop;i++) {	2128	for (i = start; i < stop; i++)
		2129	{
1989	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2130	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
1990	if(!flag)	2131	if (!flag)
1991	altern[index++]=i;	2132	altern[index++] = i;
1992		2133
1993	/* Basically, if we find a wall on a space, we cut down the search size.	2134	/* 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.	2135	* 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 -	2136	* 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	2137	* 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	2138	* spaces in all the other directions, this will reduce the search space
1998	* to only the spaces immediately surrounding the target area, and	2139	* to only the spaces immediately surrounding the target area, and
1999	* won't look 2 spaces south of the target space.	2140	* won't look 2 spaces south of the target space.
2000	*/	2141	*/
2001	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2142	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)
2002	stop=maxfree[i];	2143	stop = maxfree[i];
2003	}	2144	}
2004	if(!index) return -1;	2145	if (!index)
		2146	return -1;
2005	return altern[RANDOM()%index];	2147	return altern[RANDOM () % index];
2006	}	2148	}
2007		2149
2008	/*	2150	/*
2009	* find_first_free_spot(archetype, mapstruct, x, y) works like	2151	* find_first_free_spot(archetype, maptile, x, y) works like
2010	* find_free_spot(), but it will search max number of squares.	2152	* find_free_spot(), but it will search max number of squares.
2011	* But it will return the first available spot, not a random choice.	2153	* 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.	2154	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2013	*/	2155	*/
2014		2156
		2157	int
2015	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2158	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2159	{
		2160	int
2016	int i;	2161	i;
		2162
2017	for(i=0;i<SIZEOFFREE;i++) {	2163	for (i = 0; i < SIZEOFFREE; i++)
		2164	{
2018	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2165	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2019	return i;	2166	return i;
2020	}	2167	}
2021	return -1;	2168	return -1;
2022	}	2169	}
2023		2170
2024	/*	2171	/*
2025	* The function permute(arr, begin, end) randomly reorders the array	2172	* The function permute(arr, begin, end) randomly reorders the array
2026	* arr[begin..end-1].	2173	* arr[begin..end-1].
2027	*/	2174	*/
		2175	static void
2028	static void permute(int *arr, int begin, int end)	2176	permute (int *arr, int begin, int end)
2029	{	2177	{
2030	int i, j, tmp, len;	2178	int
		2179	i,
		2180	j,
		2181	tmp,
		2182	len;
2031		2183
2032	len = end-begin;	2184	len = end - begin;
2033	for(i = begin; i < end; i++)	2185	for (i = begin; i < end; i++)
2034	{	2186	{
2035	j = begin+RANDOM()%len;	2187	j = begin + RANDOM () % len;
2036		2188
2037	tmp = arr[i];	2189	tmp = arr[i];
2038	arr[i] = arr[j];	2190	arr[i] = arr[j];
2039	arr[j] = tmp;	2191	arr[j] = tmp;
2040	}	2192	}
2041	}	2193	}
2042		2194
2043	/* new function to make monster searching more efficient, and effective!	2195	/* new function to make monster searching more efficient, and effective!
2044	* This basically returns a randomized array (in the passed pointer) of	2196	* 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	2197	* 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	2198	* 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	2199	* 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.	2200	* the 3x3 area will be searched, just not in a predictable order.
2049	*/	2201	*/
		2202	void
2050	void get_search_arr(int *search_arr)	2203	get_search_arr (int *search_arr)
2051	{	2204	{
		2205	int
2052	int i;	2206	i;
2053		2207
2054	for(i = 0; i < SIZEOFFREE; i++)	2208	for (i = 0; i < SIZEOFFREE; i++)
2055	{	2209	{
2056	search_arr[i] = i;	2210	search_arr[i] = i;
2057	}	2211	}
2058		2212
2059	permute(search_arr, 1, SIZEOFFREE1+1);	2213	permute (search_arr, 1, SIZEOFFREE1 + 1);
2060	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2214	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2061	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2215	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2062	}	2216	}
2063		2217
2064	/*	2218	/*
2065	* find_dir(map, x, y, exclude) will search some close squares in the	2219	* find_dir(map, x, y, exclude) will search some close squares in the
2066	* given map at the given coordinates for live objects.	2220	* given map at the given coordinates for live objects.
…		…
2072	* is actually want is going to try and move there. We need this info	2226	* 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	2227	* because we have to know what movement the thing looking to move
2074	* there is capable of.	2228	* there is capable of.
2075	*/	2229	*/
2076		2230
		2231	int
2077	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2232	find_dir (maptile *m, int x, int y, object *exclude)
		2233	{
		2234	int
		2235	i,
2078	int i,max=SIZEOFFREE, mflags;	2236	max = SIZEOFFREE, mflags;
		2237
2079	sint16 nx, ny;	2238	sint16 nx, ny;
2080	object *tmp;	2239	object *
2081	mapstruct *mp;	2240	tmp;
		2241	maptile *
		2242	mp;
		2243
2082	MoveType blocked, move_type;	2244	MoveType blocked, move_type;
2083		2245
2084	if (exclude && exclude->head) {	2246	if (exclude && exclude->head)
		2247	{
2085	exclude = exclude->head;	2248	exclude = exclude->head;
2086	move_type = exclude->move_type;	2249	move_type = exclude->move_type;
2087	} else {	2250	}
		2251	else
		2252	{
2088	/* If we don't have anything, presume it can use all movement types. */	2253	/* If we don't have anything, presume it can use all movement types. */
2089	move_type=MOVE_ALL;	2254	move_type = MOVE_ALL;
		2255	}
		2256
		2257	for (i = 1; i < max; i++)
2090	}	2258	{
2091
2092	for(i=1;i<max;i++) {
2093	mp = m;	2259	mp = m;
2094	nx = x + freearr_x[i];	2260	nx = x + freearr_x[i];
2095	ny = y + freearr_y[i];	2261	ny = y + freearr_y[i];
2096		2262
2097	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2263	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2098	if (mflags & P_OUT_OF_MAP) {	2264	if (mflags & P_OUT_OF_MAP)
		2265	{
2099	max = maxfree[i];	2266	max = maxfree[i];
		2267	}
2100	} else {	2268	else
		2269	{
2101	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2270	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2102		2271
2103	if ((move_type & blocked) == move_type) {	2272	if ((move_type & blocked) == move_type)
		2273	{
2104	max=maxfree[i];	2274	max = maxfree[i];
		2275	}
2105	} else if (mflags & P_IS_ALIVE) {	2276	else if (mflags & P_IS_ALIVE)
		2277	{
2106	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2278	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2107	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2279	{
2108	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2280	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
		2281	{
2109	break;	2282	break;
2110	}	2283	}
2111	}	2284	}
2112	if(tmp) {	2285	if (tmp)
		2286	{
2113	return freedir[i];	2287	return freedir[i];
2114	}	2288	}
2115	}	2289	}
2116	}	2290	}
2117	}	2291	}
2118	return 0;	2292	return 0;
2119	}	2293	}
2120		2294
2121	/*	2295	/*
2122	* distance(object 1, object 2) will return the square of the	2296	* distance(object 1, object 2) will return the square of the
2123	* distance between the two given objects.	2297	* distance between the two given objects.
2124	*/	2298	*/
2125		2299
		2300	int
2126	int distance(const object *ob1, const object *ob2) {	2301	distance (const object *ob1, const object *ob2)
		2302	{
2127	int i;	2303	int
2128	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2304	i;
2129	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2305
		2306	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2130	return i;	2307	return i;
2131	}	2308	}
2132		2309
2133	/*	2310	/*
2134	* find_dir_2(delta-x,delta-y) will return a direction in which	2311	* 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	2312	* an object which has subtracted the x and y coordinates of another
2136	* object, needs to travel toward it.	2313	* object, needs to travel toward it.
2137	*/	2314	*/
2138		2315
		2316	int
2139	int find_dir_2(int x, int y) {	2317	find_dir_2 (int x, int y)
		2318	{
2140	int q;	2319	int
		2320	q;
2141		2321
2142	if(y)	2322	if (y)
2143	q=x*100/y;	2323	q = x * 100 / y;
2144	else if (x)	2324	else if (x)
2145	q= -300*x;	2325	q = -300 * x;
2146	else	2326	else
2147	return 0;	2327	return 0;
2148		2328
2149	if(y>0) {	2329	if (y > 0)
		2330	{
2150	if(q < -242)	2331	if (q < -242)
2151	return 3 ;	2332	return 3;
2152	if (q < -41)	2333	if (q < -41)
2153	return 2 ;	2334	return 2;
2154	if (q < 41)	2335	if (q < 41)
2155	return 1 ;	2336	return 1;
2156	if (q < 242)	2337	if (q < 242)
2157	return 8 ;	2338	return 8;
2158	return 7 ;	2339	return 7;
2159	}	2340	}
2160		2341
2161	if (q < -242)	2342	if (q < -242)
2162	return 7 ;	2343	return 7;
2163	if (q < -41)	2344	if (q < -41)
2164	return 6 ;	2345	return 6;
2165	if (q < 41)	2346	if (q < 41)
2166	return 5 ;	2347	return 5;
2167	if (q < 242)	2348	if (q < 242)
2168	return 4 ;	2349	return 4;
2169		2350
2170	return 3 ;	2351	return 3;
2171	}	2352	}
2172		2353
2173	/*	2354	/*
2174	* absdir(int): Returns a number between 1 and 8, which represent	2355	* absdir(int): Returns a number between 1 and 8, which represent
2175	* the "absolute" direction of a number (it actually takes care of	2356	* the "absolute" direction of a number (it actually takes care of
2176	* "overflow" in previous calculations of a direction).	2357	* "overflow" in previous calculations of a direction).
2177	*/	2358	*/
2178		2359
		2360	int
2179	int absdir(int d) {	2361	absdir (int d)
2180	while(d<1) d+=8;	2362	{
2181	while(d>8) d-=8;	2363	while (d < 1)
		2364	d += 8;
		2365	while (d > 8)
		2366	d -= 8;
2182	return d;	2367	return d;
2183	}	2368	}
2184		2369
2185	/*	2370	/*
2186	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2371	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2187	* between two directions (which are expected to be absolute (see absdir())	2372	* between two directions (which are expected to be absolute (see absdir())
2188	*/	2373	*/
2189		2374
		2375	int
2190	int dirdiff(int dir1, int dir2) {	2376	dirdiff (int dir1, int dir2)
		2377	{
2191	int d;	2378	int
		2379	d;
		2380
2192	d = abs(dir1 - dir2);	2381	d = abs (dir1 - dir2);
2193	if(d>4)	2382	if (d > 4)
2194	d = 8 - d;	2383	d = 8 - d;
2195	return d;	2384	return d;
2196	}	2385	}
2197		2386
2198	/* peterm:	2387	/* peterm:
…		…
2203	* direction 4, 14, or 16 to get back to where we are.	2392	* 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	2393	* Moved from spell_util.c to object.c with the other related direction
2205	* functions.	2394	* functions.
2206	*/	2395	*/
2207		2396
		2397	int
2208	int reduction_dir[SIZEOFFREE][3] = {	2398	reduction_dir[SIZEOFFREE][3] = {
2209	{0,0,0}, /* 0 */	2399	{0, 0, 0}, /* 0 */
2210	{0,0,0}, /* 1 */	2400	{0, 0, 0}, /* 1 */
2211	{0,0,0}, /* 2 */	2401	{0, 0, 0}, /* 2 */
2212	{0,0,0}, /* 3 */	2402	{0, 0, 0}, /* 3 */
2213	{0,0,0}, /* 4 */	2403	{0, 0, 0}, /* 4 */
2214	{0,0,0}, /* 5 */	2404	{0, 0, 0}, /* 5 */
2215	{0,0,0}, /* 6 */	2405	{0, 0, 0}, /* 6 */
2216	{0,0,0}, /* 7 */	2406	{0, 0, 0}, /* 7 */
2217	{0,0,0}, /* 8 */	2407	{0, 0, 0}, /* 8 */
2218	{8,1,2}, /* 9 */	2408	{8, 1, 2}, /* 9 */
2219	{1,2,-1}, /* 10 */	2409	{1, 2, -1}, /* 10 */
2220	{2,10,12}, /* 11 */	2410	{2, 10, 12}, /* 11 */
2221	{2,3,-1}, /* 12 */	2411	{2, 3, -1}, /* 12 */
2222	{2,3,4}, /* 13 */	2412	{2, 3, 4}, /* 13 */
2223	{3,4,-1}, /* 14 */	2413	{3, 4, -1}, /* 14 */
2224	{4,14,16}, /* 15 */	2414	{4, 14, 16}, /* 15 */
2225	{5,4,-1}, /* 16 */	2415	{5, 4, -1}, /* 16 */
2226	{4,5,6}, /* 17 */	2416	{4, 5, 6}, /* 17 */
2227	{6,5,-1}, /* 18 */	2417	{6, 5, -1}, /* 18 */
2228	{6,20,18}, /* 19 */	2418	{6, 20, 18}, /* 19 */
2229	{7,6,-1}, /* 20 */	2419	{7, 6, -1}, /* 20 */
2230	{6,7,8}, /* 21 */	2420	{6, 7, 8}, /* 21 */
2231	{7,8,-1}, /* 22 */	2421	{7, 8, -1}, /* 22 */
2232	{8,22,24}, /* 23 */	2422	{8, 22, 24}, /* 23 */
2233	{8,1,-1}, /* 24 */	2423	{8, 1, -1}, /* 24 */
2234	{24,9,10}, /* 25 */	2424	{24, 9, 10}, /* 25 */
2235	{9,10,-1}, /* 26 */	2425	{9, 10, -1}, /* 26 */
2236	{10,11,-1}, /* 27 */	2426	{10, 11, -1}, /* 27 */
2237	{27,11,29}, /* 28 */	2427	{27, 11, 29}, /* 28 */
2238	{11,12,-1}, /* 29 */	2428	{11, 12, -1}, /* 29 */
2239	{12,13,-1}, /* 30 */	2429	{12, 13, -1}, /* 30 */
2240	{12,13,14}, /* 31 */	2430	{12, 13, 14}, /* 31 */
2241	{13,14,-1}, /* 32 */	2431	{13, 14, -1}, /* 32 */
2242	{14,15,-1}, /* 33 */	2432	{14, 15, -1}, /* 33 */
2243	{33,15,35}, /* 34 */	2433	{33, 15, 35}, /* 34 */
2244	{16,15,-1}, /* 35 */	2434	{16, 15, -1}, /* 35 */
2245	{17,16,-1}, /* 36 */	2435	{17, 16, -1}, /* 36 */
2246	{18,17,16}, /* 37 */	2436	{18, 17, 16}, /* 37 */
2247	{18,17,-1}, /* 38 */	2437	{18, 17, -1}, /* 38 */
2248	{18,19,-1}, /* 39 */	2438	{18, 19, -1}, /* 39 */
2249	{41,19,39}, /* 40 */	2439	{41, 19, 39}, /* 40 */
2250	{19,20,-1}, /* 41 */	2440	{19, 20, -1}, /* 41 */
2251	{20,21,-1}, /* 42 */	2441	{20, 21, -1}, /* 42 */
2252	{20,21,22}, /* 43 */	2442	{20, 21, 22}, /* 43 */
2253	{21,22,-1}, /* 44 */	2443	{21, 22, -1}, /* 44 */
2254	{23,22,-1}, /* 45 */	2444	{23, 22, -1}, /* 45 */
2255	{45,47,23}, /* 46 */	2445	{45, 47, 23}, /* 46 */
2256	{23,24,-1}, /* 47 */	2446	{23, 24, -1}, /* 47 */
2257	{24,9,-1}}; /* 48 */	2447	{24, 9, -1}
		2448	}; /* 48 */
2258		2449
2259	/* Recursive routine to step back and see if we can	2450	/* Recursive routine to step back and see if we can
2260	* find a path to that monster that we found. If not,	2451	* find a path to that monster that we found. If not,
2261	* we don't bother going toward it. Returns 1 if we	2452	* we don't bother going toward it. Returns 1 if we
2262	* can see a direct way to get it	2453	* can see a direct way to get it
2263	* Modified to be map tile aware -.MSW	2454	* Modified to be map tile aware -.MSW
2264	*/	2455	*/
2265
2266		2456
		2457
		2458	int
2267	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2459	can_see_monsterP (maptile *m, int x, int y, int dir)
		2460	{
2268	sint16 dx, dy;	2461	sint16 dx, dy;
		2462	int
2269	int mflags;	2463	mflags;
2270		2464
		2465	if (dir < 0)
2271	if(dir<0) return 0; /* exit condition: invalid direction */	2466	return 0; /* exit condition: invalid direction */
2272		2467
2273	dx = x + freearr_x[dir];	2468	dx = x + freearr_x[dir];
2274	dy = y + freearr_y[dir];	2469	dy = y + freearr_y[dir];
2275		2470
2276	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2471	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2277		2472
2278	/* This functional arguably was incorrect before - it was	2473	/* This functional arguably was incorrect before - it was
2279	* checking for P_WALL - that was basically seeing if	2474	* checking for P_WALL - that was basically seeing if
2280	* we could move to the monster - this is being more	2475	* we could move to the monster - this is being more
2281	* literal on if we can see it. To know if we can actually	2476	* 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	2477	* move to the monster, we'd need the monster passed in or
2283	* at least its move type.	2478	* at least its move type.
2284	*/	2479	*/
2285	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2480	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2481	return 0;
2286		2482
2287	/* yes, can see. */	2483	/* yes, can see. */
2288	if(dir < 9) return 1;	2484	if (dir < 9)
		2485	return 1;
2289	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2486	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2290	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2487	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	}	2488	}
2293		2489
2294		2490
2295		2491
2296	/*	2492	/*
2297	* can_pick(picker, item): finds out if an object is possible to be	2493	* 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	2494	* picked up by the picker. Returnes 1 if it can be
2299	* picked up, otherwise 0.	2495	* picked up, otherwise 0.
2300	*	2496	*
…		…
2302	* core dumps if they do.	2498	* core dumps if they do.
2303	*	2499	*
2304	* Add a check so we can't pick up invisible objects (0.93.8)	2500	* Add a check so we can't pick up invisible objects (0.93.8)
2305	*/	2501	*/
2306		2502
		2503	int
2307	int can_pick(const object *who, const object *item) {	2504	can_pick (const object *who, const object *item)
		2505	{
2308	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2506	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2309	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2507	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2310	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2508	!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	}	2509	}
2313		2510
2314		2511
2315	/*	2512	/*
2316	* create clone from object to another	2513	* create clone from object to another
2317	*/	2514	*/
		2515	object *
2318	object *object_create_clone (object *asrc) {	2516	object_create_clone (object *asrc)
		2517	{
2319	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2518	object *dst = 0, *tmp, *src, *part, *prev, *item;
2320		2519
2321	if(!asrc) return NULL;	2520	if (!asrc)
		2521	return 0;
		2522
2322	src = asrc;	2523	src = asrc;
2323	if(src->head)	2524	if (src->head)
2324	src = src->head;	2525	src = src->head;
2325		2526
2326	prev = NULL;	2527	prev = 0;
2327	for(part = src; part; part = part->more) {	2528	for (part = src; part; part = part->more)
2328	tmp = get_object();	2529	{
2329	copy_object(part,tmp);	2530	tmp = part->clone ();
2330	tmp->x -= src->x;	2531	tmp->x -= src->x;
2331	tmp->y -= src->y;	2532	tmp->y -= src->y;
		2533
2332	if(!part->head) {	2534	if (!part->head)
		2535	{
2333	dst = tmp;	2536	dst = tmp;
2334	tmp->head = NULL;	2537	tmp->head = 0;
		2538	}
2335	} else {	2539	else
		2540	{
2336	tmp->head = dst;	2541	tmp->head = dst;
2337	}	2542	}
		2543
2338	tmp->more = NULL;	2544	tmp->more = 0;
		2545
2339	if(prev)	2546	if (prev)
2340	prev->more = tmp;	2547	prev->more = tmp;
		2548
2341	prev = tmp;	2549	prev = tmp;
2342	}	2550	}
2343	/*** copy inventory ***/	2551
2344	for(item = src->inv; item; item = item->below) {	2552	for (item = src->inv; item; item = item->below)
2345	(void) insert_ob_in_ob(object_create_clone(item),dst);	2553	insert_ob_in_ob (object_create_clone (item), dst);
2346	}
2347		2554
2348	return dst;	2555	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	}	2556	}
2358		2557
2359	/* GROS - Creates an object using a string representing its content. */	2558	/* 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 */	2559	/* 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, */	2560	/* 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. */	2561	/* 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. */	2562	/* Remember not to use load_object_str in a time-critical situation. */
2364	/* Also remember that multiparts objects are not supported for now. */	2563	/* Also remember that multiparts objects are not supported for now. */
2365		2564
		2565	object *
2366	object* load_object_str(const char *obstr)	2566	load_object_str (const char *obstr)
2367	{	2567	{
2368	object *op;	2568	object *op;
2369	char filename[MAX_BUF];	2569	char filename[MAX_BUF];
		2570
2370	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2571	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2371		2572
2372	FILE *tempfile=fopen(filename,"w");	2573	FILE *tempfile = fopen (filename, "w");
		2574
2373	if (tempfile == NULL)	2575	if (tempfile == NULL)
2374	{	2576	{
2375	LOG(llevError,"Error - Unable to access load object temp file\n");	2577	LOG (llevError, "Error - Unable to access load object temp file\n");
2376	return NULL;	2578	return NULL;
2377	};	2579	}
		2580
2378	fprintf(tempfile,obstr);	2581	fprintf (tempfile, obstr);
2379	fclose(tempfile);	2582	fclose (tempfile);
2380		2583
2381	op=get_object();	2584	op = object::create ();
2382		2585
2383	object_thawer thawer (filename);	2586	object_thawer thawer (filename);
2384		2587
2385	if (thawer)	2588	if (thawer)
2386	load_object(thawer,op,0);	2589	load_object (thawer, op, 0);
2387		2590
2388	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2591	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2389	CLEAR_FLAG(op,FLAG_REMOVED);	2592	CLEAR_FLAG (op, FLAG_REMOVED);
2390		2593
2391	return op;	2594	return op;
2392	}	2595	}
2393		2596
2394	/* This returns the first object in who's inventory that	2597	/* This returns the first object in who's inventory that
2395	* has the same type and subtype match.	2598	* has the same type and subtype match.
2396	* returns NULL if no match.	2599	* returns NULL if no match.
2397	*/	2600	*/
		2601	object *
2398	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2602	find_obj_by_type_subtype (const object *who, int type, int subtype)
2399	{	2603	{
2400	object *tmp;	2604	object *tmp;
2401		2605
2402	for (tmp=who->inv; tmp; tmp=tmp->below)	2606	for (tmp = who->inv; tmp; tmp = tmp->below)
2403	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2607	if (tmp->type == type && tmp->subtype == subtype)
		2608	return tmp;
2404		2609
2405	return NULL;	2610	return NULL;
2406	}	2611	}
2407		2612
2408	/* If ob has a field named key, return the link from the list,	2613	/* If ob has a field named key, return the link from the list,
2409	* otherwise return NULL.	2614	* otherwise return NULL.
2410	*	2615	*
2411	* key must be a passed in shared string - otherwise, this won't	2616	* key must be a passed in shared string - otherwise, this won't
2412	* do the desired thing.	2617	* do the desired thing.
2413	*/	2618	*/
		2619	key_value *
2414	key_value * get_ob_key_link(const object * ob, const char * key) {	2620	get_ob_key_link (const object *ob, const char *key)
		2621	{
2415	key_value * link;	2622	key_value *link;
2416		2623
2417	for (link = ob->key_values; link != NULL; link = link->next) {	2624	for (link = ob->key_values; link != NULL; link = link->next)
2418	if (link->key == key) {	2625	if (link->key == key)
2419	return link;	2626	return link;
2420	}	2627
2421	}
2422
2423	return NULL;	2628	return NULL;
2424	}	2629	}
2425		2630
2426	/*	2631	/*
2427	* Returns the value of op has an extra_field for key, or NULL.	2632	* Returns the value of op has an extra_field for key, or NULL.
2428	*	2633	*
2429	* The argument doesn't need to be a shared string.	2634	* The argument doesn't need to be a shared string.
2430	*	2635	*
2431	* The returned string is shared.	2636	* The returned string is shared.
2432	*/	2637	*/
		2638	const char *
2433	const char * get_ob_key_value(const object * op, const char * const key) {	2639	get_ob_key_value (const object *op, const char *const key)
		2640	{
2434	key_value * link;	2641	key_value *link;
2435	const char * canonical_key;	2642	shstr_cmp canonical_key (key);
		2643
		2644	if (!canonical_key)
2436		2645	{
2437	canonical_key = shstr::find (key);
2438
2439	if (canonical_key == NULL) {
2440	/* 1. There being a field named key on any object	2646	/* 1. There being a field named key on any object
2441	* implies there'd be a shared string to find.	2647	* implies there'd be a shared string to find.
2442	* 2. Since there isn't, no object has this field.	2648	* 2. Since there isn't, no object has this field.
2443	* 3. Therefore, *this* object doesn't have this field.	2649	* 3. Therefore, *this* object doesn't have this field.
2444	*/	2650	*/
2445	return NULL;	2651	return 0;
2446	}	2652	}
2447		2653
2448	/* This is copied from get_ob_key_link() above -	2654	/* This is copied from get_ob_key_link() above -
2449	* only 4 lines, and saves the function call overhead.	2655	* only 4 lines, and saves the function call overhead.
2450	*/	2656	*/
2451	for (link = op->key_values; link != NULL; link = link->next) {	2657	for (link = op->key_values; link; link = link->next)
2452	if (link->key == canonical_key) {	2658	if (link->key == canonical_key)
2453	return link->value;	2659	return link->value;
2454	}	2660
2455	}	2661	return 0;
2456	return NULL;
2457	}	2662	}
2458		2663
2459		2664
2460	/*	2665	/*
2461	* Updates the canonical_key in op to value.	2666	* 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	2670	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2466	* keys.	2671	* keys.
2467	*	2672	*
2468	* Returns TRUE on success.	2673	* Returns TRUE on success.
2469	*/	2674	*/
		2675	int
2470	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2676	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2677	{
		2678	key_value *
2471	key_value * field = NULL, *last=NULL;	2679	field = NULL, *last = NULL;
2472		2680
2473	for (field=op->key_values; field != NULL; field=field->next) {	2681	for (field = op->key_values; field != NULL; field = field->next)
		2682	{
2474	if (field->key != canonical_key) {	2683	if (field->key != canonical_key)
		2684	{
2475	last = field;	2685	last = field;
2476	continue;	2686	continue;
2477	}	2687	}
2478		2688
2479	if (value)	2689	if (value)
2480	field->value = value;	2690	field->value = value;
2481	else {	2691	else
		2692	{
2482	/* Basically, if the archetype has this key set,	2693	/* Basically, if the archetype has this key set,
2483	* we need to store the null value so when we save	2694	* we need to store the null value so when we save
2484	* it, we save the empty value so that when we load,	2695	* it, we save the empty value so that when we load,
2485	* we get this value back again.	2696	* we get this value back again.
2486	*/	2697	*/
2487	if (get_ob_key_link (&op->arch->clone, canonical_key))	2698	if (get_ob_key_link (&op->arch->clone, canonical_key))
2488	field->value = 0;	2699	field->value = 0;
		2700	else
		2701	{
		2702	if (last)
		2703	last->next = field->next;
2489	else	2704	else
2490	{
2491	if (last) last->next = field->next;
2492	else op->key_values = field->next;	2705	op->key_values = field->next;
2493		2706
2494	delete field;	2707	delete field;
2495	}	2708	}
2496	}	2709	}
2497	return TRUE;	2710	return TRUE;
2498	}	2711	}
2499	/* IF we get here, key doesn't exist */	2712	/* IF we get here, key doesn't exist */
2500		2713
2501	/* No field, we'll have to add it. */	2714	/* No field, we'll have to add it. */
		2715
		2716	if (!add_key)
2502		2717	{
2503	if (!add_key) {
2504	return FALSE;	2718	return FALSE;
2505	}	2719	}
2506	/* There isn't any good reason to store a null	2720	/* There isn't any good reason to store a null
2507	* value in the key/value list. If the archetype has	2721	* value in the key/value list. If the archetype has
2508	* this key, then we should also have it, so shouldn't	2722	* this key, then we should also have it, so shouldn't
2509	* be here. If user wants to store empty strings,	2723	* be here. If user wants to store empty strings,
2510	* should pass in ""	2724	* should pass in ""
2511	*/	2725	*/
2512	if (value == NULL) return TRUE;	2726	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;	2727	return TRUE;
		2728
		2729	field = new key_value;
		2730
		2731	field->key = canonical_key;
		2732	field->value = value;
		2733	/* Usual prepend-addition. */
		2734	field->next = op->key_values;
		2735	op->key_values = field;
		2736
		2737	return TRUE;
2523	}	2738	}
2524		2739
2525	/*	2740	/*
2526	* Updates the key in op to value.	2741	* Updates the key in op to value.
2527	*	2742	*
…		…
2529	* and not add new ones.	2744	* and not add new ones.
2530	* In general, should be little reason FALSE is ever passed in for add_key	2745	* In general, should be little reason FALSE is ever passed in for add_key
2531	*	2746	*
2532	* Returns TRUE on success.	2747	* Returns TRUE on success.
2533	*/	2748	*/
		2749	int
2534	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2750	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2535	{	2751	{
2536	shstr key_ (key);	2752	shstr key_ (key);
		2753
2537	return set_ob_key_value_s (op, key_, value, add_key);	2754	return set_ob_key_value_s (op, key_, value, add_key);
2538	}	2755	}
		2756
		2757	object::depth_iterator::depth_iterator (object *container)
		2758	: iterator_base (container)
		2759	{
		2760	while (item->inv)
		2761	item = item->inv;
		2762	}
		2763
		2764	void
		2765	object::depth_iterator::next ()
		2766	{
		2767	if (item->below)
		2768	{
		2769	item = item->below;
		2770
		2771	while (item->inv)
		2772	item = item->inv;
		2773	}
		2774	else
		2775	item = item->env;
		2776	}
		2777
		2778	// return a suitable string describing an objetc in enough detail to find it
		2779	const char *
		2780	object::debug_desc (char *info) const
		2781	{
		2782	char info2[256 * 3];
		2783	char *p = info;
		2784
		2785	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2786	count,
		2787	&name,
		2788	title ? " " : "",
		2789	title ? (const char *)title : "");
		2790
		2791	if (env)
		2792	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2793
		2794	if (map)
		2795	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2796
		2797	return info;
		2798	}
		2799
		2800	const char *
		2801	object::debug_desc () const
		2802	{
		2803	static char info[256 * 3];
		2804	return debug_desc (info);
		2805	}
		2806

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