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Comparing deliantra/server/common/object.C (file contents):
Revision 1.29 by root, Mon Sep 11 12:38:36 2006 UTC vs.
Revision 1.213 by root, Tue Apr 22 01:18:10 2008 UTC

1
2	/*	1	/*
3	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
6	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
7		7	*
8	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
9	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
10	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
11	(at your option) any later version.	11	* (at your option) any later version.
12		12	*
13	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU General Public License for more details.	16	* GNU General Public License for more details.
17		17	*
18	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
19	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
21		21	* The authors can be reached via e-mail to <support@deliantra.net>
22	The authors can be reached via e-mail at crossfire-devel@real-time.com
23	*/	22	*/
24		23
25	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
26	sub/add_weight will transcend the environment updating the carrying
27	variable. */
28	#include <global.h>	24	#include <global.h>
29	#include <stdio.h>	25	#include <stdio.h>
30	#include <sys/types.h>	26	#include <sys/types.h>
31	#include <sys/uio.h>	27	#include <sys/uio.h>
32	#include <object.h>	28	#include <object.h>
33	#include <funcpoint.h>	29	#include <sproto.h>
34	#include <skills.h>
35	#include <loader.h>	30	#include <loader.h>
36		31
37	int nrofallocobjects = 0;	32	#include <bitset>
38		33
39	object *objects; /* Pointer to the list of used objects */	34	UUID UUID::cur;
40	object *active_objects; /* List of active objects that need to be processed */	35	static uint64_t seq_next_save;
		36	static const uint64 UUID_GAP = 1<<19;
41		37
42	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,	38	objectvec objects;
		39	activevec actives;
		40
		41	short freearr_x[SIZEOFFREE] = {
		42	0,
		43	0, 1, 1, 1, 0, -1, -1, -1,
		44	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
43	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	45	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	};	46	};
45	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,	47	short freearr_y[SIZEOFFREE] = {
		48	0,
		49	-1, -1, 0, 1, 1, 1, 0, -1,
		50	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
46	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	51	-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	};	52	};
48	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,	53	int maxfree[SIZEOFFREE] = {
		54	0,
		55	9, 10, 13, 14, 17, 18, 21, 22,
		56	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
49	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	57	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	};	58	};
51	int freedir[SIZEOFFREE] = {	59	int freedir[SIZEOFFREE] = {
52	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,	60	0,
		61	1, 2, 3, 4, 5, 6, 7, 8,
		62	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
53	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	63	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	};	64	};
55		65
		66	static void
		67	write_uuid (uval64 skip, bool sync)
		68	{
		69	CALL_BEGIN (2);
		70	CALL_ARG_SV (newSVval64 (skip));
		71	CALL_ARG_SV (boolSV (sync));
		72	CALL_CALL ("cf::write_uuid", G_DISCARD);
		73	CALL_END;
		74	}
		75
		76	static void
		77	read_uuid (void)
		78	{
		79	char filename[MAX_BUF];
		80
		81	sprintf (filename, "%s/uuid", settings.localdir);
		82
		83	seq_next_save = 0;
		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::cur.seq = 0;
		93	write_uuid (UUID_GAP, true);
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	UUID::BUF buf;
		102	buf[0] = 0;
		103	fgets (buf, sizeof (buf), fp);
		104
		105	if (!UUID::cur.parse (buf))
		106	{
		107	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		108	_exit (1);
		109	}
		110
		111	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		112
		113	write_uuid (UUID_GAP, true);
		114	fclose (fp);
		115	}
		116
		117	UUID
		118	UUID::gen ()
		119	{
		120	UUID uid;
		121
		122	uid.seq = ++cur.seq;
		123
		124	if (expect_false (cur.seq >= seq_next_save))
		125	{
		126	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		127	write_uuid (UUID_GAP, false);
		128	}
		129
		130
		131	return uid;
		132	}
		133
		134	void
		135	UUID::init ()
		136	{
		137	read_uuid ();
		138	}
		139
56	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	140	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
57	static int	141	static bool
58	compare_ob_value_lists_one (const object *wants, const object *has)	142	compare_ob_value_lists_one (const object *wants, const object *has)
59	{	143	{
60	key_value *wants_field;	144	key_value *wants_field;
61		145
62	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	146	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
63	* objects with lists are rare, and lists stay short. If not, use a	147	* objects with lists are rare, and lists stay short. If not, use a
64	* different structure or at least keep the lists sorted...	148	* different structure or at least keep the lists sorted...
65	*/	149	*/
66		150
67	/* For each field in wants, */	151	/* For each field in wants, */
68	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	152	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
69	{	153	{
70	key_value *has_field;	154	key_value *has_field;
71		155
72	/* Look for a field in has with the same key. */	156	/* Look for a field in has with the same key. */
73	has_field = get_ob_key_link (has, wants_field->key);	157	has_field = get_ob_key_link (has, wants_field->key);
74		158
75	if (has_field == NULL)	159	if (!has_field)
76	{
77	/* No field with that name. */	160	return 0; /* No field with that name. */
78	return FALSE;
79	}
80		161
81	/* Found the matching field. */	162	/* Found the matching field. */
82	if (has_field->value != wants_field->value)	163	if (has_field->value != wants_field->value)
83	{
84	/* Values don't match, so this half of the comparison is false. */	164	return 0; /* Values don't match, so this half of the comparison is false. */
85	return FALSE;
86	}
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	}	167	}
90		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 1;
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. */
96	static int	174	static bool
97	compare_ob_value_lists (const object *ob1, const object *ob2)	175	compare_ob_value_lists (const object *ob1, const object *ob2)
98	{	176	{
99	/* 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,
100	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
101	*/	179	*/
…		…
107	*	185	*
108	* 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
109	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
110	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
111	*	189	*
112	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
113	*	191	*
114	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
115	* check weight	193	* check weight
116	*/	194	*/
117
118	bool object::can_merge (object *ob1, object *ob2)	195	bool object::can_merge_slow (object *ob1, object *ob2)
119	{	196	{
120	/* A couple quicksanity checks */	197	/* A couple quicksanity checks */
121	if ((ob1 == ob2) || (ob1->type != ob2->type))	198	if (ob1 == ob2
		199	|| ob1->type != ob2->type
		200	|| ob1->speed != ob2->speed
		201	|| ob1->value != ob2->value
		202	|| ob1->name != ob2->name)
122	return 0;	203	return 0;
123		204
124	if (ob1->speed != ob2->speed)	205	/* Do not merge objects if nrof would overflow. First part checks
		206	* for unsigned overflow (2c), second part checks whether the result
		207	* would fit into a 32 bit signed int, which is often used to hold
		208	* nrof values.
		209	*/
		210	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
125	return 0;	211	return 0;
126		212
127	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
128	* value could not be stored in a sint32 (which unfortunately sometimes is
129	* used to store nrof).
130	*/
131	if (ob1->nrof + ob2->nrof >= 1UL << 31)
132	return 0;
133
134	/* If the objects have been identified, set the BEEN_APPLIED flag.	213	/* If the objects have been identified, set the BEEN_APPLIED flag.
135	* This is to the comparison of the flags below will be OK. We	214	* This is to the comparison of the flags below will be OK. We
136	* just can't ignore the been applied or identified flags, as they	215	* just can't ignore the been applied or identified flags, as they
137	* are not equal - just if it has been identified, the been_applied	216	* are not equal - just if it has been identified, the been_applied
138	* flags lose any meaning.	217	* flags lose any meaning.
139	*/	218	*/
140	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	219	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
141	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	220	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
142		221
143	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	222	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
144	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	223	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
145		224
146		225	if (ob1->arch->name != ob2->arch->name
147	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
148	* being locked in inventory should prevent merging.
149	* 0x4 in flags3 is CLIENT_SENT
150	*/
151	if ((ob1->arch != ob2->arch) ||
152	(ob1->flags[0] != ob2->flags[0]) ||
153	(ob1->flags[1] != ob2->flags[1]) ||
154	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
155	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
156	(ob1->name != ob2->name) ||	226	|| ob1->name != ob2->name
157	(ob1->title != ob2->title) ||	227	|| ob1->title != ob2->title
158	(ob1->msg != ob2->msg) ||	228	|| ob1->msg != ob2->msg
159	(ob1->weight != ob2->weight) ||	229	|| ob1->weight != ob2->weight
160	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
161	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
162	(ob1->attacktype != ob2->attacktype) ||	230	|| ob1->attacktype != ob2->attacktype
163	(ob1->magic != ob2->magic) ||	231	|| ob1->magic != ob2->magic
164	(ob1->slaying != ob2->slaying) ||	232	|| ob1->slaying != ob2->slaying
165	(ob1->skill != ob2->skill) ||	233	|| ob1->skill != ob2->skill
166	(ob1->value != ob2->value) ||	234	|| ob1->value != ob2->value
167	(ob1->animation_id != ob2->animation_id) ||	235	|| ob1->animation_id != ob2->animation_id
168	(ob1->client_type != ob2->client_type) ||	236	|| ob1->client_type != ob2->client_type
169	(ob1->materialname != ob2->materialname) ||	237	|| ob1->materialname != ob2->materialname
170	(ob1->lore != ob2->lore) ||	238	|| ob1->lore != ob2->lore
171	(ob1->subtype != ob2->subtype) ||	239	|| ob1->subtype != ob2->subtype
172	(ob1->move_type != ob2->move_type) ||	240	|| ob1->move_type != ob2->move_type
173	(ob1->move_block != ob2->move_block) ||	241	|| ob1->move_block != ob2->move_block
174	(ob1->move_allow != ob2->move_allow) ||	242	|| ob1->move_allow != ob2->move_allow
175	(ob1->move_on != ob2->move_on) ||	243	|| ob1->move_on != ob2->move_on
176	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	244	|| ob1->move_off != ob2->move_off
		245	|| ob1->move_slow != ob2->move_slow
		246	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		247	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		248	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
177	return 0;	249	return 0;
178		250
		251	if ((ob1->flag ^ ob2->flag)
		252	.reset (FLAG_INV_LOCKED)
		253	.reset (FLAG_CLIENT_SENT)
		254	.reset (FLAG_REMOVED)
		255	.any ())
		256	return 0;
		257
179	/* This is really a spellbook check - really, we should	258	/* This is really a spellbook check - we should in general
180	* check all objects in the inventory.	259	* not merge objects with real inventories, as splitting them
		260	* is hard.
181	*/	261	*/
182	if (ob1->inv || ob2->inv)	262	if (ob1->inv || ob2->inv)
183	{	263	{
184	/* if one object has inventory but the other doesn't, not equiv */
185	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
186	return 0;
187
188	/* Now check to see if the two inventory objects could merge */
189	if (!CAN_MERGE (ob1->inv, ob2->inv))	264	if (!(ob1->inv && ob2->inv))
190	return 0;	265	return 0; /* inventories differ in length */
		266
		267	if (ob1->inv->below || ob2->inv->below)
		268	return 0; /* more than one object in inv */
		269
		270	if (!object::can_merge (ob1->inv, ob2->inv))
		271	return 0; /* inventory objects differ */
191		272
192	/* inventory ok - still need to check rest of this object to see	273	/* inventory ok - still need to check rest of this object to see
193	* if it is valid.	274	* if it is valid.
194	*/	275	*/
195	}	276	}
…		…
203		284
204	/* Note sure why the following is the case - either the object has to	285	/* Note sure why the following is the case - either the object has to
205	* be animated or have a very low speed. Is this an attempted monster	286	* be animated or have a very low speed. Is this an attempted monster
206	* check?	287	* check?
207	*/	288	*/
208	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	289	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
209	return 0;	290	return 0;
210		291
211	switch (ob1->type)	292	switch (ob1->type)
212	{	293	{
213	case SCROLL:	294	case SCROLL:
214	if (ob1->level != ob2->level)	295	if (ob1->level != ob2->level)
215	return 0;	296	return 0;
216	break;	297	break;
217	}	298	}
218		299
219	if (ob1->key_values != NULL || ob2->key_values != NULL)	300	if (ob1->key_values || ob2->key_values)
220	{	301	{
221	/* At least one of these has key_values. */	302	/* At least one of these has key_values. */
222	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	303	if ((!ob1->key_values) != (!ob2->key_values))
223	/* One has fields, but the other one doesn't. */	304	return 0; /* One has fields, but the other one doesn't. */
		305
		306	if (!compare_ob_value_lists (ob1, ob2))
224	return 0;	307	return 0;
225	else if (!compare_ob_value_lists (ob1, ob2))
226	return 0;
227	}	308	}
228		309
229	//TODO: generate an event or call into perl for additional checks
230	if (ob1->self || ob2->self)	310	if (ob1->self || ob2->self)
231	{	311	{
232	ob1->optimise ();	312	ob1->optimise ();
233	ob2->optimise ();	313	ob2->optimise ();
234		314
235	if (ob1->self || ob2->self)	315	if (ob1->self || ob2->self)
		316	{
		317	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		318	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		319
		320	if (k1 != k2)
236	return 0;	321	return 0;
		322
		323	if (k1 == 0)
		324	return 1;
		325
		326	if (!cfperl_can_merge (ob1, ob2))
		327	return 0;
		328	}
237	}	329	}
238		330
239	/* Everything passes, must be OK. */	331	/* Everything passes, must be OK. */
240	return 1;	332	return 1;
241	}	333	}
242		334
		335	// adjust weight per container type ("of holding")
		336	static sint32
		337	weight_adjust (object *op, sint32 weight)
		338	{
		339	return op->type == CONTAINER
		340	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		341	: weight;
		342	}
		343
243	/*	344	/*
		345	* adjust_weight(object, weight) adds the specified weight to an object,
		346	* and also updates how much the environment(s) is/are carrying.
		347	*/
		348	static void
		349	adjust_weight (object *op, sint32 weight)
		350	{
		351	while (op)
		352	{
		353	weight = weight_adjust (op, weight);
		354
		355	if (!weight)
		356	return;
		357
		358	op->carrying += weight;
		359
		360	if (object *pl = op->visible_to ())
		361	esrv_update_item (UPD_WEIGHT, pl, op);
		362
		363	op = op->env;
		364	}
		365	}
		366
		367	/*
244	* sum_weight() is a recursive function which calculates the weight	368	* this is a recursive function which calculates the weight
245	* an object is carrying. It goes through in figures out how much	369	* an object is carrying. It goes through op and figures out how much
246	* containers are carrying, and sums it up.	370	* containers are carrying, and sums it up.
247	*/	371	*/
248	long
249	sum_weight (object *op)
250	{
251	long sum;
252	object *inv;
253
254	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
255	{
256	if (inv->inv)
257	sum_weight (inv);
258	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
259	}
260	if (op->type == CONTAINER && op->stats.Str)
261	sum = (sum * (100 - op->stats.Str)) / 100;
262	if (op->carrying != sum)
263	op->carrying = sum;
264	return sum;
265	}
266
267	/**
268	* Return the outermost environment object for a given object.
269	*/
270
271	object *
272	object_get_env_recursive (object *op)
273	{
274	while (op->env != NULL)
275	op = op->env;
276	return op;
277	}
278
279	/*
280	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
281	* a better check. We basically keeping traversing up until we can't
282	* or find a player.
283	*/
284
285	object *
286	is_player_inv (object *op)
287	{
288	for (; op != NULL && op->type != PLAYER; op = op->env)
289	if (op->env == op)
290	op->env = NULL;
291	return op;
292	}
293
294	/*
295	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
296	* Some error messages.
297	* The result of the dump is stored in the static global errmsg array.
298	*/
299
300	void	372	void
301	dump_object2 (object *op)	373	object::update_weight ()
302	{	374	{
303	errmsg[0] = 0;	375	sint32 sum = 0;
304	return;
305	//TODO//D#d#
306	#if 0
307	char *cp;
308		376
309	/* object *tmp;*/	377	for (object *op = inv; op; op = op->below)
310
311	if (op->arch != NULL)
312	{
313	strcat (errmsg, "arch ");
314	strcat (errmsg, op->arch->name ? op->arch->name : "(null)");
315	strcat (errmsg, "\n");
316	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
317	strcat (errmsg, cp);
318	# if 0
319	/* Don't dump player diffs - they are too long, mostly meaningless, and
320	* will overflow the buffer.
321	* Changed so that we don't dump inventory either. This may
322	* also overflow the buffer.
323	*/
324	if (op->type != PLAYER && (cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
325	strcat (errmsg, cp);
326	for (tmp = op->inv; tmp; tmp = tmp->below)
327	dump_object2 (tmp);
328	# endif
329	strcat (errmsg, "end\n");
330	}	378	{
331	else	379	if (op->inv)
		380	op->update_weight ();
		381
		382	sum += op->total_weight ();
332	{	383	}
333	strcat (errmsg, "Object ");	384
334	if (op->name == NULL)	385	sum = weight_adjust (this, sum);
335	strcat (errmsg, "(null)");	386
336	else	387	if (sum != carrying)
337	strcat (errmsg, op->name);
338	strcat (errmsg, "\n");
339	# if 0
340	if ((cp = get_ob_diff (op, &empty_archetype->clone)) != NULL)
341	strcat (errmsg, cp);
342	for (tmp = op->inv; tmp; tmp = tmp->below)
343	dump_object2 (tmp);
344	# endif
345	strcat (errmsg, "end\n");
346	}	388	{
347	#endif	389	carrying = sum;
348	}
349		390
350	/*	391	if (object *pl = visible_to ())
351	* Dumps an object. Returns output in the static global errmsg array.	392	esrv_update_item (UPD_WEIGHT, pl, this);
352	*/	393	}
		394	}
353		395
354	void	396	/*
		397	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
		398	*/
		399	char *
355	dump_object (object *op)	400	dump_object (object *op)
356	{	401	{
357	if (op == NULL)	402	if (!op)
358	{	403	return strdup ("[NULLOBJ]");
359	strcpy (errmsg, "[NULL pointer]");
360	return;
361	}
362	errmsg[0] = '\0';
363	dump_object2 (op);
364	}
365		404
366	void	405	object_freezer freezer;
367	dump_all_objects (void)	406	op->write (freezer);
368	{	407	return freezer.as_string ();
369	object *op;
370
371	for (op = objects; op != NULL; op = op->next)
372	{
373	dump_object (op);
374	fprintf (logfile, "Object %d\n:%s\n", op->count, errmsg);
375	}
376	}	408	}
377		409
378	/*	410	/*
379	* get_nearest_part(multi-object, object 2) returns the part of the	411	* get_nearest_part(multi-object, object 2) returns the part of the
380	* multi-object 1 which is closest to the second object.	412	* multi-object 1 which is closest to the second object.
381	* If it's not a multi-object, it is returned.	413	* If it's not a multi-object, it is returned.
382	*/	414	*/
383
384	object *	415	object *
385	get_nearest_part (object *op, const object *pl)	416	get_nearest_part (object *op, const object *pl)
386	{	417	{
387	object *tmp, *closest;	418	object *tmp, *closest;
388	int last_dist, i;	419	int last_dist, i;
389		420
390	if (op->more == NULL)	421	if (!op->more)
391	return op;	422	return op;
		423
392	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)	424	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		425	tmp;
		426	tmp = tmp->more)
393	if ((i = distance (tmp, pl)) < last_dist)	427	if ((i = distance (tmp, pl)) < last_dist)
394	closest = tmp, last_dist = i;	428	closest = tmp, last_dist = i;
		429
395	return closest;	430	return closest;
396	}	431	}
397		432
398	/*	433	/*
399	* Returns the object which has the count-variable equal to the argument.	434	* Returns the object which has the count-variable equal to the argument.
		435	* VERRRY slow.
400	*/	436	*/
401
402	object *	437	object *
403	find_object (tag_t i)	438	find_object (tag_t i)
404	{	439	{
405	object *op;	440	for_all_objects (op)
406
407	for (op = objects; op != NULL; op = op->next)
408	if (op->count == i)	441	if (op->count == i)
409	break;
410	return op;	442	return op;
		443
		444	return 0;
411	}	445	}
412		446
413	/*	447	/*
414	* Returns the first object which has a name equal to the argument.	448	* Returns the first object which has a name equal to the argument.
415	* Used only by the patch command, but not all that useful.	449	* Used only by the patch command, but not all that useful.
416	* Enables features like "patch <name-of-other-player> food 999"	450	* Enables features like "patch <name-of-other-player> food 999"
417	*/	451	*/
418
419	object *	452	object *
420	find_object_name (const char *str)	453	find_object_name (const char *str)
421	{	454	{
422	const char *name = shstr::find (str);	455	shstr_cmp str_ (str);
423	object *op;	456	object *op;
424		457
425	for (op = objects; op != NULL; op = op->next)	458	for_all_objects (op)
426	if (&op->name == name)	459	if (op->name == str_)
427	break;	460	break;
428		461
429	return op;	462	return op;
430	}
431
432	void
433	free_all_object_data ()
434	{
435	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
436	}
437
438	/*
439	* Returns the object which this object marks as being the owner.
440	* A id-scheme is used to avoid pointing to objects which have been
441	* freed and are now reused. If this is detected, the owner is
442	* set to NULL, and NULL is returned.
443	* Changed 2004-02-12 - if the player is setting at the play again
444	* prompt, he is removed, and we don't want to treat him as an owner of
445	* anything, so check removed flag. I don't expect that this should break
446	* anything - once an object is removed, it is basically dead anyways.
447	*/
448
449	object *
450	get_owner (object *op)
451	{
452	if (op->owner == NULL)
453	return NULL;
454
455	if (!QUERY_FLAG (op->owner, FLAG_FREED) && !QUERY_FLAG (op->owner, FLAG_REMOVED) && op->owner->count == op->ownercount)
456	return op->owner;
457
458	op->owner = NULL;
459	op->ownercount = 0;
460	return NULL;
461	}
462
463	void
464	clear_owner (object *op)
465	{
466	if (!op)
467	return;
468
469	if (op->owner && op->ownercount == op->owner->count)
470	op->owner->refcount--;
471
472	op->owner = NULL;
473	op->ownercount = 0;
474	}	463	}
475		464
476	/*	465	/*
477	* Sets the owner and sets the skill and exp pointers to owner's current	466	* Sets the owner and sets the skill and exp pointers to owner's current
478	* skill and experience objects.	467	* skill and experience objects.
		468	* ACTUALLY NO! investigate! TODO
479	*/	469	*/
480	void	470	void
481	set_owner (object *op, object *owner)	471	object::set_owner (object *owner)
482	{	472	{
483	if (owner == NULL || op == NULL)	473	// allow objects which own objects
484	return;	474	if (owner)
485		475	while (owner->owner)
486	/* next line added to allow objects which own objects */
487	/* Add a check for ownercounts in here, as I got into an endless loop
488	* with the fireball owning a poison cloud which then owned the
489	* fireball. I believe that was caused by one of the objects getting
490	* freed and then another object replacing it. Since the ownercounts
491	* didn't match, this check is valid and I believe that cause is valid.
492	*/
493	while (owner->owner && owner != owner->owner && owner->ownercount == owner->owner->count)
494	owner = owner->owner;	476	owner = owner->owner;
495		477
496	/* IF the owner still has an owner, we did not resolve to a final owner.	478	if (flag [FLAG_FREED])
497	* so lets not add to that.
498	*/
499	if (owner->owner)
500	return;
501
502	op->owner = owner;
503
504	op->ownercount = owner->count;
505	owner->refcount++;
506	}
507
508	/* Set the owner to clone's current owner and set the skill and experience
509	* objects to clone's objects (typically those objects that where the owner's
510	* current skill and experience objects at the time when clone's owner was
511	* set - not the owner's current skill and experience objects).
512	*
513	* Use this function if player created an object (e.g. fire bullet, swarm
514	* spell), and this object creates further objects whose kills should be
515	* accounted for the player's original skill, even if player has changed
516	* skills meanwhile.
517	*/
518	void
519	copy_owner (object *op, object *clone)
520	{
521	object *owner = get_owner (clone);
522
523	if (owner == NULL)
524	{	479	{
525	/* players don't have owners - they own themselves. Update	480	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
526	* as appropriate.
527	*/
528	if (clone->type == PLAYER)
529	owner = clone;
530	else
531	return;	481	return;
		482	}
		483
		484	this->owner = owner;
		485	}
		486
		487	int
		488	object::slottype () const
		489	{
		490	if (type == SKILL)
532	}	491	{
		492	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		493	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		494	}
		495	else
		496	{
		497	if (slot [body_combat].info) return slot_combat;
		498	if (slot [body_range ].info) return slot_ranged;
		499	}
		500
		501	return slot_none;
		502	}
533		503
534	set_owner (op, owner);	504	bool
		505	object::change_weapon (object *ob)
		506	{
		507	if (current_weapon == ob)
		508	return true;
		509
		510	if (chosen_skill)
		511	chosen_skill->flag [FLAG_APPLIED] = false;
		512
		513	current_weapon = ob;
		514	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		515
		516	if (chosen_skill)
		517	chosen_skill->flag [FLAG_APPLIED] = true;
		518
		519	update_stats ();
		520
		521	if (ob)
		522	{
		523	// now check wether any body locations became invalid, in which case
		524	// we cannot apply the weapon at the moment.
		525	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		526	if (slot[i].used < 0)
		527	{
		528	current_weapon = chosen_skill = 0;
		529	update_stats ();
		530
		531	new_draw_info_format (NDI_UNIQUE, 0, this,
		532	"You try to balance all your items at once, "
		533	"but the %s is just too much for your body. "
		534	"[You need to unapply some items first.]", &ob->name);
		535	return false;
		536	}
		537
		538	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		539	}
		540	else
		541	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		542
		543	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		544	{
		545	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		546	&name, ob->debug_desc ());
		547	return false;
		548	}
		549
		550	return true;
535	}	551	}
536		552
537	/* Zero the key_values on op, decrementing the shared-string	553	/* Zero the key_values on op, decrementing the shared-string
538	* refcounts and freeing the links.	554	* refcounts and freeing the links.
539	*/	555	*/
540	static void	556	static void
541	free_key_values (object *op)	557	free_key_values (object *op)
542	{	558	{
543	for (key_value *i = op->key_values; i != 0;)	559	for (key_value *i = op->key_values; i; )
544	{	560	{
545	key_value *next = i->next;	561	key_value *next = i->next;
546	delete i;	562	delete i;
547		563
548	i = next;	564	i = next;
549	}	565	}
550		566
551	op->key_values = 0;	567	op->key_values = 0;
552	}	568	}
553		569
554	void object::clear ()	570	object &
		571	object::operator =(const object &src)
555	{	572	{
556	attachable_base::clear ();	573	bool is_freed = flag [FLAG_FREED];
		574	bool is_removed = flag [FLAG_REMOVED];
557		575
558	free_key_values (this);	576	*(object_copy *)this = src;
559		577
560	clear_owner (this);	578	flag [FLAG_FREED] = is_freed;
561		579	flag [FLAG_REMOVED] = is_removed;
562	name = 0;
563	name_pl = 0;
564	title = 0;
565	race = 0;
566	slaying = 0;
567	skill = 0;
568	msg = 0;
569	lore = 0;
570	custom_name = 0;
571	materialname = 0;
572
573	memset (static_cast < object_pod * >(this), 0, sizeof (object_pod));
574
575	SET_FLAG (this, FLAG_REMOVED);
576	}
577
578	void object::clone (object *destination)
579	{
580	*(object_copy *) destination = *this;
581	*(object_pod *) destination = *this;
582
583	if (self || cb)
584	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
585	}
586
587	/*
588	* clear_object() frees everything allocated by an object, and also
589	* clears all variables and flags to default settings.
590	*/
591
592	void
593	clear_object (object *op)
594	{
595	op->clear ();
596
597	op->contr = NULL;
598	op->below = NULL;
599	op->above = NULL;
600	op->inv = NULL;
601	op->container = NULL;
602	op->env = NULL;
603	op->more = NULL;
604	op->head = NULL;
605	op->map = NULL;
606	op->refcount = 0;
607	op->active_next = NULL;
608	op->active_prev = NULL;
609	/* What is not cleared is next, prev, and count */
610
611	op->expmul = 1.0;
612	op->face = blank_face;
613	op->attacked_by_count = -1;
614
615	if (settings.casting_time)
616	op->casting_time = -1;
617	}
618
619	/*
620	* copy object first frees everything allocated by the second object,
621	* and then copies the contends of the first object into the second
622	* object, allocating what needs to be allocated. Basically, any
623	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
624	* if the first object is freed, the pointers in the new object
625	* will point at garbage.
626	*/
627
628	void
629	copy_object (object *op2, object *op)
630	{
631	bool is_freed = QUERY_FLAG (op, FLAG_FREED);
632	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);
633
634	op2->clone (op);
635
636	if (is_freed)
637	SET_FLAG (op, FLAG_FREED);
638	if (is_removed)
639	SET_FLAG (op, FLAG_REMOVED);
640
641	if (op2->speed < 0)
642	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;
643		580
644	/* Copy over key_values, if any. */	581	/* Copy over key_values, if any. */
645	if (op2->key_values)	582	if (src.key_values)
646	{	583	{
647	key_value *tail = 0;	584	key_value *tail = 0;
648	key_value *i;
649
650	op->key_values = 0;	585	key_values = 0;
651		586
652	for (i = op2->key_values; i; i = i->next)	587	for (key_value *i = src.key_values; i; i = i->next)
653	{	588	{
654	key_value *new_link = new key_value;	589	key_value *new_link = new key_value;
655		590
656	new_link->next = 0;	591	new_link->next = 0;
657	new_link->key = i->key;	592	new_link->key = i->key;
658	new_link->value = i->value;	593	new_link->value = i->value;
659		594
660	/* Try and be clever here, too. */	595	/* Try and be clever here, too. */
661	if (!op->key_values)	596	if (!key_values)
662	{	597	{
663	op->key_values = new_link;	598	key_values = new_link;
664	tail = new_link;	599	tail = new_link;
665	}	600	}
666	else	601	else
667	{	602	{
668	tail->next = new_link;	603	tail->next = new_link;
669	tail = new_link;	604	tail = new_link;
670	}	605	}
671	}	606	}
672	}	607	}
		608	}
673		609
674	update_ob_speed (op);	610	/*
		611	* copy_to first frees everything allocated by the dst object,
		612	* and then copies the contents of itself into the second
		613	* object, allocating what needs to be allocated. Basically, any
		614	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
		615	* if the first object is freed, the pointers in the new object
		616	* will point at garbage.
		617	*/
		618	void
		619	object::copy_to (object *dst)
		620	{
		621	*dst = *this;
		622
		623	if (speed < 0)
		624	dst->speed_left -= rndm ();
		625
		626	dst->set_speed (dst->speed);
		627	}
		628
		629	void
		630	object::instantiate ()
		631	{
		632	if (!uuid.seq) // HACK
		633	uuid = UUID::gen ();
		634
		635	speed_left = -0.1f;
		636	/* copy the body_info to the body_used - this is only really
		637	* need for monsters, but doesn't hurt to do it for everything.
		638	* by doing so, when a monster is created, it has good starting
		639	* values for the body_used info, so when items are created
		640	* for it, they can be properly equipped.
		641	*/
		642	for (int i = NUM_BODY_LOCATIONS; i--; )
		643	slot[i].used = slot[i].info;
		644
		645	attachable::instantiate ();
		646	}
		647
		648	object *
		649	object::clone ()
		650	{
		651	object *neu = create ();
		652	copy_to (neu);
		653	return neu;
675	}	654	}
676		655
677	/*	656	/*
678	* If an object with the IS_TURNABLE() flag needs to be turned due	657	* If an object with the IS_TURNABLE() flag needs to be turned due
679	* to the closest player being on the other side, this function can	658	* to the closest player being on the other side, this function can
680	* be called to update the face variable, _and_ how it looks on the map.	659	* be called to update the face variable, _and_ how it looks on the map.
681	*/	660	*/
682
683	void	661	void
684	update_turn_face (object *op)	662	update_turn_face (object *op)
685	{	663	{
686	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	664	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
687	return;	665	return;
		666
688	SET_ANIMATION (op, op->direction);	667	SET_ANIMATION (op, op->direction);
689	update_object (op, UP_OBJ_FACE);	668	update_object (op, UP_OBJ_FACE);
690	}	669	}
691		670
692	/*	671	/*
693	* Updates the speed of an object. If the speed changes from 0 to another	672	* Updates the speed of an object. If the speed changes from 0 to another
694	* value, or vice versa, then add/remove the object from the active list.	673	* value, or vice versa, then add/remove the object from the active list.
695	* This function needs to be called whenever the speed of an object changes.	674	* This function needs to be called whenever the speed of an object changes.
696	*/	675	*/
697
698	void	676	void
699	update_ob_speed (object *op)	677	object::set_speed (float speed)
700	{	678	{
701	extern int arch_init;	679	if (flag [FLAG_FREED] && speed)
702
703	/* No reason putting the archetypes objects on the speed list,
704	* since they never really need to be updated.
705	*/
706
707	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
708	{	680	{
709	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	681	LOG (llevError, "Object %s is freed but has speed.\n", &name);
710	#ifdef MANY_CORES
711	abort ();
712	#else
713	op->speed = 0;	682	speed = 0;
714	#endif
715	}
716	if (arch_init)
717	{	683	}
718	return;
719	}
720	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
721	{
722	/* If already on active list, don't do anything */
723	if (op->active_next || op->active_prev || op == active_objects)
724	return;
725		684
726	/* process_events() expects us to insert the object at the beginning	685	this->speed = speed;
727	* of the list. */	686
728	op->active_next = active_objects;	687	if (has_active_speed ())
729	if (op->active_next != NULL)	688	activate ();
730	op->active_next->active_prev = op;
731	active_objects = op;
732	}
733	else	689	else
734	{	690	deactivate ();
735	/* If not on the active list, nothing needs to be done */
736	if (!op->active_next && !op->active_prev && op != active_objects)
737	return;
738
739	if (op->active_prev == NULL)
740	{
741	active_objects = op->active_next;
742	if (op->active_next != NULL)
743	op->active_next->active_prev = NULL;
744	}
745	else
746	{
747	op->active_prev->active_next = op->active_next;
748	if (op->active_next)
749	op->active_next->active_prev = op->active_prev;
750	}
751	op->active_next = NULL;
752	op->active_prev = NULL;
753	}
754	}	691	}
755		692
756	/* This function removes object 'op' from the list of active
757	* objects.
758	* This should only be used for style maps or other such
759	* reference maps where you don't want an object that isn't
760	* in play chewing up cpu time getting processed.
761	* The reverse of this is to call update_ob_speed, which
762	* will do the right thing based on the speed of the object.
763	*/
764	void
765	remove_from_active_list (object *op)
766	{
767	/* If not on the active list, nothing needs to be done */
768	if (!op->active_next && !op->active_prev && op != active_objects)
769	return;
770
771	if (op->active_prev == NULL)
772	{
773	active_objects = op->active_next;
774	if (op->active_next != NULL)
775	op->active_next->active_prev = NULL;
776	}
777	else
778	{
779	op->active_prev->active_next = op->active_next;
780	if (op->active_next)
781	op->active_next->active_prev = op->active_prev;
782	}
783	op->active_next = NULL;
784	op->active_prev = NULL;
785	}
786
787	/*	693	/*
788	* update_object() updates the array which represents the map.	694	* update_object() updates the the map.
789	* It takes into account invisible objects (and represent squares covered	695	* It takes into account invisible objects (and represent squares covered
790	* by invisible objects by whatever is below them (unless it's another	696	* by invisible objects by whatever is below them (unless it's another
791	* invisible object, etc...)	697	* invisible object, etc...)
792	* If the object being updated is beneath a player, the look-window	698	* If the object being updated is beneath a player, the look-window
793	* of that player is updated (this might be a suboptimal way of	699	* of that player is updated (this might be a suboptimal way of
794	* updating that window, though, since update_object() is called _often_)	700	* updating that window, though, since update_object() is called _often_)
795	*	701	*
796	* action is a hint of what the caller believes need to be done.	702	* action is a hint of what the caller believes need to be done.
797	* For example, if the only thing that has changed is the face (due to
798	* an animation), we don't need to call update_position until that actually
799	* comes into view of a player. OTOH, many other things, like addition/removal
800	* of walls or living creatures may need us to update the flags now.
801	* current action are:	703	* current action are:
802	* UP_OBJ_INSERT: op was inserted	704	* UP_OBJ_INSERT: op was inserted
803	* UP_OBJ_REMOVE: op was removed	705	* UP_OBJ_REMOVE: op was removed
804	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	706	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
805	* as that is easier than trying to look at what may have changed.	707	* as that is easier than trying to look at what may have changed.
806	* UP_OBJ_FACE: only the objects face has changed.	708	* UP_OBJ_FACE: only the objects face has changed.
807	*/	709	*/
808
809	void	710	void
810	update_object (object *op, int action)	711	update_object (object *op, int action)
811	{	712	{
812	int update_now = 0, flags;
813	MoveType move_on, move_off, move_block, move_slow;
814
815	if (op == NULL)	713	if (op == NULL)
816	{	714	{
817	/* this should never happen */	715	/* this should never happen */
818	LOG (llevDebug, "update_object() called for NULL object.\n");	716	LOG (llevDebug, "update_object() called for NULL object.\n");
819	return;	717	return;
820	}	718	}
821		719
822	if (op->env != NULL)	720	if (op->env)
823	{	721	{
824	/* Animation is currently handled by client, so nothing	722	/* Animation is currently handled by client, so nothing
825	* to do in this case.	723	* to do in this case.
826	*/	724	*/
827	return;	725	return;
…		…
832	*/	730	*/
833	if (!op->map || op->map->in_memory == MAP_SAVING)	731	if (!op->map || op->map->in_memory == MAP_SAVING)
834	return;	732	return;
835		733
836	/* make sure the object is within map boundaries */	734	/* make sure the object is within map boundaries */
837	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	735	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
838	{	736	{
839	LOG (llevError, "update_object() called for object out of map!\n");	737	LOG (llevError, "update_object() called for object out of map!\n");
840	#ifdef MANY_CORES	738	#ifdef MANY_CORES
841	abort ();	739	abort ();
842	#endif	740	#endif
843	return;	741	return;
844	}	742	}
845		743
846	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	744	mapspace &m = op->ms ();
847	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
848	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
849	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
850	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
851	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
852		745
		746	if (!(m.flags_ & P_UPTODATE))
		747	/* nop */;
853	if (action == UP_OBJ_INSERT)	748	else if (action == UP_OBJ_INSERT)
854	{	749	{
		750	// this is likely overkill, TODO: revisit (schmorp)
855	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	751	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
856	update_now = 1;
857
858	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	752	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
859	update_now = 1;	753	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
860		754	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		755	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
861	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	756	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
862	update_now = 1;
863
864	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
865	update_now = 1;
866
867	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
868	update_now = 1;
869
870	if ((move_on | op->move_on) != move_on)	757	|| (m.move_on | op->move_on ) != m.move_on
871	update_now = 1;
872
873	if ((move_off | op->move_off) != move_off)	758	|| (m.move_off | op->move_off ) != m.move_off
874	update_now = 1;	759	|| (m.move_slow | op->move_slow) != m.move_slow
875
876	/* This isn't perfect, but I don't expect a lot of objects to	760	/* This isn't perfect, but I don't expect a lot of objects to
877	* to have move_allow right now.	761	* to have move_allow right now.
878	*/	762	*/
879	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	763	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
880	update_now = 1;	764	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
881		765	m.flags_ = 0;
882	if ((move_slow | op->move_slow) != move_slow)
883	update_now = 1;
884	}	766	}
885	/* if the object is being removed, we can't make intelligent	767	/* if the object is being removed, we can't make intelligent
886	* decisions, because remove_ob can't really pass the object	768	* decisions, because remove_ob can't really pass the object
887	* that is being removed.	769	* that is being removed.
888	*/	770	*/
889	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	771	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
890	update_now = 1;	772	m.flags_ = 0;
891	else if (action == UP_OBJ_FACE)	773	else if (action == UP_OBJ_FACE)
892	/* Nothing to do for that case */ ;	774	/* Nothing to do for that case */ ;
893	else	775	else
894	LOG (llevError, "update_object called with invalid action: %d\n", action);	776	LOG (llevError, "update_object called with invalid action: %d\n", action);
895		777
896	if (update_now)
897	{
898	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
899	update_position (op->map, op->x, op->y);
900	}
901
902	if (op->more != NULL)	778	if (op->more)
903	update_object (op->more, action);	779	update_object (op->more, action);
904	}
905
906	static unordered_vector < object *>mortals;
907	static
908	std::vector < object *>
909	freed;
910
911	void object::free_mortals ()
912	{
913	for (unordered_vector < object *>::iterator i = mortals.begin (); i != mortals.end ();)
914	if (!(*i)->refcount)
915	{
916	freed.push_back (*i);
917	mortals.erase (i);
918	}
919	else
920	++i;
921	}	780	}
922		781
923	object::object ()	782	object::object ()
924	{	783	{
925	SET_FLAG (this, FLAG_REMOVED);	784	SET_FLAG (this, FLAG_REMOVED);
926		785
927	expmul = 1.0;	786	expmul = 1.0;
928	face = blank_face;	787	face = blank_face;
929	attacked_by_count = -1;
930	}	788	}
931		789
932	object::~object ()	790	object::~object ()
933	{	791	{
		792	unlink ();
		793
934	free_key_values (this);	794	free_key_values (this);
935	}	795	}
936		796
		797	static int object_count;
		798
937	void object::link ()	799	void object::link ()
938	{	800	{
		801	assert (!index);//D
		802	uuid = UUID::gen ();
939	count = ++ob_count;	803	count = ++object_count;
940		804
941	prev = 0;	805	refcnt_inc ();
942	next = objects;	806	objects.insert (this);
943
944	if (objects)
945	objects->prev = this;
946
947	objects = this;
948	}	807	}
949		808
950	void object::unlink ()	809	void object::unlink ()
951	{	810	{
952	count = 0;
953
954	/* Remove this object from the list of used objects */
955	if (prev)
956	{
957	prev->next = next;
958	prev = 0;
959	}
960
961	if (next)	811	if (!index)
962	{	812	return;
963	next->prev = prev;	813
964	next = 0;	814	objects.erase (this);
		815	refcnt_dec ();
		816	}
		817
		818	void
		819	object::activate ()
		820	{
		821	/* If already on active list, don't do anything */
		822	if (active)
		823	return;
		824
		825	if (has_active_speed ())
		826	actives.insert (this);
		827	}
		828
		829	void
		830	object::activate_recursive ()
		831	{
		832	activate ();
		833
		834	for (object *op = inv; op; op = op->below)
		835	op->activate_recursive ();
		836	}
		837
		838	/* This function removes object 'op' from the list of active
		839	* objects.
		840	* This should only be used for style maps or other such
		841	* reference maps where you don't want an object that isn't
		842	* in play chewing up cpu time getting processed.
		843	* The reverse of this is to call update_ob_speed, which
		844	* will do the right thing based on the speed of the object.
		845	*/
		846	void
		847	object::deactivate ()
		848	{
		849	/* If not on the active list, nothing needs to be done */
		850	if (!active)
		851	return;
		852
		853	actives.erase (this);
		854	}
		855
		856	void
		857	object::deactivate_recursive ()
		858	{
		859	for (object *op = inv; op; op = op->below)
		860	op->deactivate_recursive ();
		861
		862	deactivate ();
		863	}
		864
		865	void
		866	object::set_flag_inv (int flag, int value)
		867	{
		868	for (object *op = inv; op; op = op->below)
965	}	869	{
		870	op->flag [flag] = value;
		871	op->set_flag_inv (flag, value);
		872	}
		873	}
966		874
967	if (this == objects)	875	/*
968	objects = next;	876	* Remove and free all objects in the inventory of the given object.
		877	* object.c ?
		878	*/
		879	void
		880	object::destroy_inv (bool drop_to_ground)
		881	{
		882	// need to check first, because the checks below might segfault
		883	// as we might be on an invalid mapspace and crossfire code
		884	// is too buggy to ensure that the inventory is empty.
		885	// corollary: if you create arrows etc. with stuff in tis inventory,
		886	// cf will crash below with off-map x and y
		887	if (!inv)
		888	return;
		889
		890	/* Only if the space blocks everything do we not process -
		891	* if some form of movement is allowed, let objects
		892	* drop on that space.
		893	*/
		894	if (!drop_to_ground
		895	|| !map
		896	|| map->in_memory != MAP_ACTIVE
		897	|| map->nodrop
		898	|| ms ().move_block == MOVE_ALL)
		899	{
		900	while (inv)
		901	{
		902	inv->destroy_inv (drop_to_ground);
		903	inv->destroy ();
		904	}
		905	}
		906	else
		907	{ /* Put objects in inventory onto this space */
		908	while (inv)
		909	{
		910	object *op = inv;
		911
		912	if (op->flag [FLAG_STARTEQUIP]
		913	|| op->flag [FLAG_NO_DROP]
		914	|| op->type == RUNE
		915	|| op->type == TRAP
		916	|| op->flag [FLAG_IS_A_TEMPLATE]
		917	|| op->flag [FLAG_DESTROY_ON_DEATH])
		918	op->destroy ();
		919	else
		920	map->insert (op, x, y);
		921	}
		922	}
969	}	923	}
970		924
971	object *object::create ()	925	object *object::create ()
972	{	926	{
973	object *
974	op;
975
976	if (freed.empty ())
977	op = new object;	927	object *op = new object;
978
979	else
980	{
981	// highly annoying, but the only way to get it stable right now
982	op = freed.back ();
983	freed.pop_back ();
984	op->~object ();
985	new ((void *) op) object;
986	}
987
988	op->link ();	928	op->link ();
989	return op;	929	return op;
990	}	930	}
991		931
992	/*	932	void
993	* free_object() frees everything allocated by an object, removes	933	object::do_destroy ()
994	* it from the list of used objects, and puts it on the list of
995	* free objects. The IS_FREED() flag is set in the object.
996	* The object must have been removed by remove_ob() first for
997	* this function to succeed.
998	*
999	* If free_inventory is set, free inventory as well. Else drop items in
1000	* inventory to the ground.
1001	*/
1002	void object::free (bool free_inventory)
1003	{	934	{
1004	if (QUERY_FLAG (this, FLAG_FREED))	935	if (flag [FLAG_IS_LINKED])
		936	remove_button_link (this);
		937
		938	if (flag [FLAG_FRIENDLY])
		939	remove_friendly_object (this);
		940
		941	remove ();
		942
		943	attachable::do_destroy ();
		944
		945	destroy_inv (true);
		946
		947	deactivate ();
		948	unlink ();
		949
		950	flag [FLAG_FREED] = 1;
		951
		952	// hack to ensure that freed objects still have a valid map
		953	{
		954	static maptile *freed_map; // freed objects are moved here to avoid crashes
		955
		956	if (!freed_map)
		957	{
		958	freed_map = new maptile;
		959
		960	freed_map->path = "<freed objects map>";
		961	freed_map->name = "/internal/freed_objects_map";
		962	freed_map->width = 3;
		963	freed_map->height = 3;
		964	freed_map->nodrop = 1;
		965
		966	freed_map->alloc ();
		967	freed_map->in_memory = MAP_ACTIVE;
		968	}
		969
		970	map = freed_map;
		971	x = 1;
		972	y = 1;
		973	}
		974
		975	if (more)
		976	{
		977	more->destroy ();
		978	more = 0;
		979	}
		980
		981	head = 0;
		982
		983	// clear those pointers that likely might cause circular references
		984	owner = 0;
		985	enemy = 0;
		986	attacked_by = 0;
		987	current_weapon = 0;
		988	}
		989
		990	void
		991	object::destroy (bool destroy_inventory)
		992	{
		993	if (destroyed ())
1005	return;	994	return;
1006		995
1007	if (!QUERY_FLAG (this, FLAG_REMOVED))	996	if (destroy_inventory)
1008	remove_ob (this);	997	destroy_inv (false);
1009		998
1010	if (QUERY_FLAG (this, FLAG_FRIENDLY))	999	if (is_head ())
1011	remove_friendly_object (this);	1000	if (sound_destroy)
		1001	play_sound (sound_destroy);
		1002	else if (flag [FLAG_MONSTER])
		1003	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1012		1004
1013	SET_FLAG (this, FLAG_FREED);	1005	attachable::destroy ();
1014
1015	if (more)
1016	{
1017	more->free (free_inventory);
1018	more = 0;
1019	}
1020
1021	if (inv)
1022	{
1023	/* Only if the space blocks everything do we not process -
1024	* if some form of movement is allowed, let objects
1025	* drop on that space.
1026	*/
1027	if (free_inventory || !map || map->in_memory != MAP_IN_MEMORY || (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
1028	{
1029	object *op = inv;
1030
1031	while (op)
1032	{
1033	object *tmp = op->below;
1034	op->free (free_inventory);
1035	op = tmp;
1036	}
1037	}
1038	else
1039	{ /* Put objects in inventory onto this space */
1040	object *op = inv;
1041
1042	while (op)
1043	{
1044	object *tmp = op->below;
1045
1046	remove_ob (op);
1047
1048	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
1049	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
1050	free_object (op);
1051	else
1052	{
1053	op->x = x;
1054	op->y = y;
1055	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
1056	}
1057
1058	op = tmp;
1059	}
1060	}
1061	}
1062
1063	clear_owner (this);
1064
1065	/* Remove object from the active list */
1066	speed = 0;
1067	update_ob_speed (this);
1068
1069	unlink ();
1070
1071	mortals.push_back (this);
1072	}	1006	}
1073		1007
1074	/*	1008	/* op->remove ():
1075	* sub_weight() recursively (outwards) subtracts a number from the
1076	* weight of an object (and what is carried by it's environment(s)).
1077	*/
1078
1079	void
1080	sub_weight (object *op, signed long weight)
1081	{
1082	while (op != NULL)
1083	{
1084	if (op->type == CONTAINER)
1085	{
1086	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1087	}
1088	op->carrying -= weight;
1089	op = op->env;
1090	}
1091	}
1092
1093	/* remove_ob(op):
1094	* This function removes the object op from the linked list of objects	1009	* This function removes the object op from the linked list of objects
1095	* which it is currently tied to. When this function is done, the	1010	* which it is currently tied to. When this function is done, the
1096	* object will have no environment. If the object previously had an	1011	* object will have no environment. If the object previously had an
1097	* environment, the x and y coordinates will be updated to	1012	* environment, the x and y coordinates will be updated to
1098	* the previous environment.	1013	* the previous environment.
1099	* Beware: This function is called from the editor as well!
1100	*/	1014	*/
1101
1102	void	1015	void
1103	remove_ob (object *op)	1016	object::do_remove ()
1104	{	1017	{
		1018	object *tmp, *last = 0;
1105	object *	1019	object *otmp;
1106	tmp, *
1107	last = NULL;
1108	object *
1109	otmp;
1110		1020
1111	tag_t	1021	if (flag [FLAG_REMOVED])
1112	tag;
1113	int
1114	check_walk_off;
1115	mapstruct *
1116	m;
1117
1118	sint16
1119	x,
1120	y;
1121
1122	if (QUERY_FLAG (op, FLAG_REMOVED))
1123	return;	1022	return;
1124		1023
1125	SET_FLAG (op, FLAG_REMOVED);	1024	INVOKE_OBJECT (REMOVE, this);
1126		1025
1127	if (op->more != NULL)	1026	if (object *pl = visible_to ())
1128	remove_ob (op->more);	1027	esrv_del_item (pl->contr, count);
		1028
		1029	flag [FLAG_REMOVED] = true;
		1030
		1031	if (more)
		1032	more->remove ();
1129		1033
1130	/*	1034	/*
1131	* In this case, the object to be removed is in someones	1035	* In this case, the object to be removed is in someones
1132	* inventory.	1036	* inventory.
1133	*/	1037	*/
1134	if (op->env != NULL)	1038	if (env)
1135	{	1039	{
1136	if (op->nrof)	1040	adjust_weight (env, -total_weight ());
1137	sub_weight (op->env, op->weight * op->nrof);	1041
1138	else	1042	*(above ? &above->below : &env->inv) = below;
1139	sub_weight (op->env, op->weight + op->carrying);	1043
		1044	if (below)
		1045	below->above = above;
		1046
		1047	/* we set up values so that it could be inserted into
		1048	* the map, but we don't actually do that - it is up
		1049	* to the caller to decide what we want to do.
		1050	*/
		1051	map = env->map;
		1052	x = env->x;
		1053	y = env->y;
		1054	above = 0;
		1055	below = 0;
		1056	env = 0;
1140		1057
1141	/* NO_FIX_PLAYER is set when a great many changes are being	1058	/* NO_FIX_PLAYER is set when a great many changes are being
1142	* made to players inventory. If set, avoiding the call	1059	* made to players inventory. If set, avoiding the call
1143	* to save cpu time.	1060	* to save cpu time.
1144	*/	1061	*/
1145	if ((otmp = is_player_inv (op->env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1062	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1146	fix_player (otmp);	1063	otmp->update_stats ();
		1064	}
		1065	else if (map)
		1066	{
		1067	if (type == PLAYER)
		1068	{
		1069	// leaving a spot always closes any open container on the ground
		1070	if (container && !container->env)
		1071	// this causes spurious floorbox updates, but it ensures
		1072	// that the CLOSE event is being sent.
		1073	close_container ();
1147		1074
1148	if (op->above != NULL)	1075	--map->players;
		1076	map->touch ();
		1077	}
		1078
		1079	map->dirty = true;
		1080	mapspace &ms = this->ms ();
		1081
		1082	/* link the object above us */
		1083	if (above)
1149	op->above->below = op->below;	1084	above->below = below;
1150	else	1085	else
1151	op->env->inv = op->below;
1152
1153	if (op->below != NULL)
1154	op->below->above = op->above;
1155
1156	/* we set up values so that it could be inserted into
1157	* the map, but we don't actually do that - it is up
1158	* to the caller to decide what we want to do.
1159	*/
1160	op->x = op->env->x, op->y = op->env->y;
1161	op->map = op->env->map;
1162	op->above = NULL, op->below = NULL;
1163	op->env = NULL;
1164	}
1165	else if (op->map)
1166	{
1167	x = op->x;
1168	y = op->y;
1169	m = get_map_from_coord (op->map, &x, &y);
1170
1171	if (!m)
1172	{
1173	LOG (llevError, "remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1174	op->map->path, op->x, op->y);
1175	/* in old days, we used to set x and y to 0 and continue.
1176	* it seems if we get into this case, something is probablye
1177	* screwed up and should be fixed.
1178	*/
1179	abort ();
1180	}
1181
1182	if (op->map != m)
1183	LOG (llevDebug, "remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1184	op->map->path, m->path, op->x, op->y, x, y);
1185
1186	/* Re did the following section of code - it looks like it had
1187	* lots of logic for things we no longer care about
1188	*/
1189
1190	/* link the object above us */
1191	if (op->above)
1192	op->above->below = op->below;
1193	else
1194	SET_MAP_TOP (m, x, y, op->below); /* we were top, set new top */	1086	ms.top = below; /* we were top, set new top */
1195		1087
1196	/* Relink the object below us, if there is one */	1088	/* Relink the object below us, if there is one */
1197	if (op->below)	1089	if (below)
1198	op->below->above = op->above;	1090	below->above = above;
1199	else	1091	else
1200	{	1092	{
1201	/* Nothing below, which means we need to relink map object for this space	1093	/* Nothing below, which means we need to relink map object for this space
1202	* use translated coordinates in case some oddness with map tiling is	1094	* use translated coordinates in case some oddness with map tiling is
1203	* evident	1095	* evident
1204	*/	1096	*/
1205	if (GET_MAP_OB (m, x, y) != op)	1097	if (GET_MAP_OB (map, x, y) != this)
1206	{
1207	dump_object (op);
1208	LOG (llevError,
1209	"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);	1098	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
1210	dump_object (GET_MAP_OB (m, x, y));	1099
1211	LOG (llevError, "%s\n", errmsg);	1100	ms.bot = above; /* goes on above it. */
1212	}	1101	}
1213		1102
1214	SET_MAP_OB (m, x, y, op->above); /* goes on above it. */
1215	}
1216
1217	op->above = 0;	1103	above = 0;
1218	op->below = 0;	1104	below = 0;
1219		1105
1220	if (op->map->in_memory == MAP_SAVING)	1106	if (map->in_memory == MAP_SAVING)
1221	return;	1107	return;
1222		1108
1223	tag = op->count;	1109	int check_walk_off = !flag [FLAG_NO_APPLY];
1224	check_walk_off = !QUERY_FLAG (op, FLAG_NO_APPLY);
1225		1110
1226	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1111	if (object *pl = ms.player ())
		1112	{
		1113	if (pl->container == this)
		1114	/* If a container that the player is currently using somehow gets
		1115	* removed (most likely destroyed), update the player view
		1116	* appropriately.
		1117	*/
		1118	pl->close_container ();
		1119
		1120	pl->contr->ns->floorbox_update ();
		1121	}
		1122
		1123	for (tmp = ms.bot; tmp; tmp = tmp->above)
1227	{	1124	{
1228	/* 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
1229	* being removed.	1126	* being removed.
1230	*/	1127	*/
1231		1128
1232	if (tmp->type == PLAYER && tmp != op)	1129	/* See if object moving off should effect something */
		1130	if (check_walk_off
		1131	&& ((move_type & tmp->move_off)
		1132	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1233	{	1133	{
1234	/* If a container that the player is currently using somehow gets	1134	move_apply (tmp, this, 0);
1235	* removed (most likely destroyed), update the player view
1236	* appropriately.
1237	*/
1238	if (tmp->container == op)
1239	{
1240	CLEAR_FLAG (op, FLAG_APPLIED);
1241	tmp->container = NULL;
1242	}
1243		1135
1244	tmp->contr->socket.update_look = 1;	1136	if (destroyed ())
		1137	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1245	}	1138	}
1246		1139
1247	/* See if player moving off should effect something */
1248	if (check_walk_off && ((op->move_type & tmp->move_off) && (op->move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1249	{
1250	move_apply (tmp, op, NULL);
1251
1252	if (was_destroyed (op, tag))
1253	{
1254	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed " "leaving object\n", &tmp->name, &tmp->arch->name);
1255	}
1256	}
1257
1258	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1259
1260	if (tmp->above == tmp)
1261	tmp->above = NULL;
1262
1263	last = tmp;	1140	last = tmp;
1264	}	1141	}
1265		1142
1266	/* last == NULL of there are no objects on this space */	1143	/* last == NULL if there are no objects on this space */
		1144	//TODO: this makes little sense, why only update the topmost object?
1267	if (last == NULL)	1145	if (!last)
1268	{	1146	map->at (x, y).flags_ = 0;
1269	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1270	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1271	* those out anyways, and if there are any flags set right now, they won't
1272	* be correct anyways.
1273	*/
1274	SET_MAP_FLAGS (op->map, op->x, op->y, P_NEED_UPDATE);
1275	update_position (op->map, op->x, op->y);
1276	}
1277	else	1147	else
1278	update_object (last, UP_OBJ_REMOVE);	1148	update_object (last, UP_OBJ_REMOVE);
1279		1149
1280	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) || (op->glow_radius != 0))	1150	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1281	update_all_los (op->map, op->x, op->y);	1151	update_all_los (map, x, y);
1282	}	1152	}
1283	}	1153	}
1284		1154
1285	/*	1155	/*
1286	* merge_ob(op,top):	1156	* merge_ob(op,top):
…		…
1288	* This function goes through all objects below and including top, and	1158	* This function goes through all objects below and including top, and
1289	* merges op to the first matching object.	1159	* merges op to the first matching object.
1290	* If top is NULL, it is calculated.	1160	* If top is NULL, it is calculated.
1291	* Returns pointer to object if it succeded in the merge, otherwise NULL	1161	* Returns pointer to object if it succeded in the merge, otherwise NULL
1292	*/	1162	*/
1293
1294	object *	1163	object *
1295	merge_ob (object *op, object *top)	1164	merge_ob (object *op, object *top)
1296	{	1165	{
1297	if (!op->nrof)	1166	if (!op->nrof)
1298	return 0;	1167	return 0;
1299		1168
1300	if (top == NULL)	1169	if (!top)
1301	for (top = op; top != NULL && top->above != NULL; top = top->above);	1170	for (top = op; top && top->above; top = top->above)
		1171	;
1302		1172
1303	for (; top != NULL; top = top->below)	1173	for (; top; top = top->below)
1304	{	1174	{
1305	if (top == op)	1175	if (top == op)
1306	continue;	1176	continue;
1307	if (CAN_MERGE (op, top))	1177
		1178	if (object::can_merge (op, top))
1308	{	1179	{
1309	top->nrof += op->nrof;	1180	top->nrof += op->nrof;
1310		1181
1311	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1182	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1312	op->weight = 0; /* Don't want any adjustements now */	1183	op->weight = 0; /* Don't want any adjustements now */
1313	remove_ob (op);	1184	op->destroy ();
1314	free_object (op);
1315	return top;	1185	return top;
1316	}	1186	}
1317	}	1187	}
1318		1188
1319	return NULL;	1189	return 0;
1320	}	1190	}
1321		1191
		1192	void
		1193	object::expand_tail ()
		1194	{
		1195	if (more)
		1196	return;
		1197
		1198	object *prev = this;
		1199
		1200	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1201	{
		1202	object *op = arch_to_object (at);
		1203
		1204	op->name = name;
		1205	op->name_pl = name_pl;
		1206	op->title = title;
		1207
		1208	op->head = this;
		1209	prev->more = op;
		1210
		1211	prev = op;
		1212	}
		1213	}
		1214
1322	/*	1215	/*
1323	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1216	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1324	* job preparing multi-part monsters	1217	* job preparing multi-part monsters.
1325	*/	1218	*/
1326	object *	1219	object *
1327	insert_ob_in_map_at (object *op, mapstruct *m, object *originator, int flag, int x, int y)	1220	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1328	{	1221	{
1329	object *tmp;
1330
1331	if (op->head)
1332	op = op->head;
1333
1334	for (tmp = op; tmp; tmp = tmp->more)	1222	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1335	{	1223	{
1336	tmp->x = x + tmp->arch->clone.x;	1224	tmp->x = x + tmp->arch->x;
1337	tmp->y = y + tmp->arch->clone.y;	1225	tmp->y = y + tmp->arch->y;
1338	}	1226	}
1339		1227
1340	return insert_ob_in_map (op, m, originator, flag);	1228	return insert_ob_in_map (op, m, originator, flag);
1341	}	1229	}
1342		1230
…		…
1358	* Return value:	1246	* Return value:
1359	* new object if 'op' was merged with other object	1247	* new object if 'op' was merged with other object
1360	* NULL if 'op' was destroyed	1248	* NULL if 'op' was destroyed
1361	* just 'op' otherwise	1249	* just 'op' otherwise
1362	*/	1250	*/
1363
1364	object *	1251	object *
1365	insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1252	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1366	{	1253	{
		1254	assert (!op->flag [FLAG_FREED]);
		1255
1367	object *tmp, *top, *floor = NULL;	1256	object *top, *floor = NULL;
1368	sint16 x, y;
1369		1257
1370	if (QUERY_FLAG (op, FLAG_FREED))	1258	op->remove ();
1371	{
1372	LOG (llevError, "Trying to insert freed object!\n");
1373	return NULL;
1374	}
1375
1376	if (m == NULL)
1377	{
1378	dump_object (op);
1379	LOG (llevError, "Trying to insert in null-map!\n%s\n", errmsg);
1380	return op;
1381	}
1382
1383	if (out_of_map (m, op->x, op->y))
1384	{
1385	dump_object (op);
1386	LOG (llevError, "Trying to insert object outside the map.\n%s\n", errmsg);
1387	#ifdef MANY_CORES
1388	/* Better to catch this here, as otherwise the next use of this object
1389	* is likely to cause a crash. Better to find out where it is getting
1390	* improperly inserted.
1391	*/
1392	abort ();
1393	#endif
1394	return op;
1395	}
1396
1397	if (!QUERY_FLAG (op, FLAG_REMOVED))
1398	{
1399	dump_object (op);
1400	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", errmsg);
1401	return op;
1402	}
1403
1404	if (op->more != NULL)
1405	{
1406	/* The part may be on a different map. */
1407
1408	object *more = op->more;
1409
1410	/* We really need the caller to normalize coordinates - if
1411	* we set the map, that doesn't work if the location is within
1412	* a map and this is straddling an edge. So only if coordinate
1413	* is clear wrong do we normalize it.
1414	*/
1415	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1416	more->map = get_map_from_coord (m, &more->x, &more->y);
1417	else if (!more->map)
1418	{
1419	/* For backwards compatibility - when not dealing with tiled maps,
1420	* more->map should always point to the parent.
1421	*/
1422	more->map = m;
1423	}
1424
1425	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1426	{
1427	if (!op->head)
1428	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1429
1430	return NULL;
1431	}
1432	}
1433
1434	CLEAR_FLAG (op, FLAG_REMOVED);
1435		1259
1436	/* Ideally, the caller figures this out. However, it complicates a lot	1260	/* Ideally, the caller figures this out. However, it complicates a lot
1437	* of areas of callers (eg, anything that uses find_free_spot would now	1261	* of areas of callers (eg, anything that uses find_free_spot would now
1438	* need extra work	1262	* need extra work
1439	*/	1263	*/
1440	op->map = get_map_from_coord (m, &op->x, &op->y);	1264	if (!xy_normalise (m, op->x, op->y))
1441	x = op->x;	1265	{
1442	y = op->y;	1266	op->destroy ();
		1267	return 0;
		1268	}
		1269
		1270	if (object *more = op->more)
		1271	if (!insert_ob_in_map (more, m, originator, flag))
		1272	return 0;
		1273
		1274	CLEAR_FLAG (op, FLAG_REMOVED);
		1275
		1276	op->map = m;
		1277	mapspace &ms = op->ms ();
1443		1278
1444	/* this has to be done after we translate the coordinates.	1279	/* this has to be done after we translate the coordinates.
1445	*/	1280	*/
1446	if (op->nrof && !(flag & INS_NO_MERGE))	1281	if (op->nrof && !(flag & INS_NO_MERGE))
1447	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1282	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1448	if (CAN_MERGE (op, tmp))	1283	if (object::can_merge (op, tmp))
1449	{	1284	{
1450	op->nrof += tmp->nrof;	1285	op->nrof += tmp->nrof;
1451	remove_ob (tmp);	1286	tmp->destroy (1);
1452	free_object (tmp);
1453	}	1287	}
1454		1288
1455	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1289	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1456	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1290	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1457		1291
…		…
1470	op->below = originator->below;	1304	op->below = originator->below;
1471		1305
1472	if (op->below)	1306	if (op->below)
1473	op->below->above = op;	1307	op->below->above = op;
1474	else	1308	else
1475	SET_MAP_OB (op->map, op->x, op->y, op);	1309	ms.bot = op;
1476		1310
1477	/* since *below* originator, no need to update top */	1311	/* since *below* originator, no need to update top */
1478	originator->below = op;	1312	originator->below = op;
1479	}	1313	}
1480	else	1314	else
1481	{	1315	{
		1316	top = ms.bot;
		1317
1482	/* If there are other objects, then */	1318	/* If there are other objects, then */
1483	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1319	if (top)
1484	{	1320	{
1485	object *last = NULL;	1321	object *last = 0;
1486		1322
1487	/*	1323	/*
1488	* If there are multiple objects on this space, we do some trickier handling.	1324	* If there are multiple objects on this space, we do some trickier handling.
1489	* We've already dealt with merging if appropriate.	1325	* We've already dealt with merging if appropriate.
1490	* Generally, we want to put the new object on top. But if	1326	* Generally, we want to put the new object on top. But if
…		…
1494	* once we get to them. This reduces the need to traverse over all of	1330	* once we get to them. This reduces the need to traverse over all of
1495	* them when adding another one - this saves quite a bit of cpu time	1331	* them when adding another one - this saves quite a bit of cpu time
1496	* when lots of spells are cast in one area. Currently, it is presumed	1332	* when lots of spells are cast in one area. Currently, it is presumed
1497	* that flying non pickable objects are spell objects.	1333	* that flying non pickable objects are spell objects.
1498	*/	1334	*/
1499		1335	for (top = ms.bot; top; top = top->above)
1500	while (top != NULL)
1501	{	1336	{
1502	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1337	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1503	floor = top;	1338	floor = top;
1504		1339
1505	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1340	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1508	top = top->below;	1343	top = top->below;
1509	break;	1344	break;
1510	}	1345	}
1511		1346
1512	last = top;	1347	last = top;
1513	top = top->above;
1514	}	1348	}
1515		1349
1516	/* Don't want top to be NULL, so set it to the last valid object */	1350	/* Don't want top to be NULL, so set it to the last valid object */
1517	top = last;	1351	top = last;
1518		1352
…		…
1520	* looks like instead of lots of conditions here.	1354	* looks like instead of lots of conditions here.
1521	* makes things faster, and effectively the same result.	1355	* makes things faster, and effectively the same result.
1522	*/	1356	*/
1523		1357
1524	/* Have object 'fall below' other objects that block view.	1358	/* Have object 'fall below' other objects that block view.
1525	* Unless those objects are exits, type 66	1359	* Unless those objects are exits.
1526	* If INS_ON_TOP is used, don't do this processing	1360	* If INS_ON_TOP is used, don't do this processing
1527	* Need to find the object that in fact blocks view, otherwise	1361	* Need to find the object that in fact blocks view, otherwise
1528	* stacking is a bit odd.	1362	* stacking is a bit odd.
1529	*/	1363	*/
1530	if (!(flag & INS_ON_TOP) &&	1364	if (!(flag & INS_ON_TOP)
1531	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1365	&& ms.flags () & P_BLOCKSVIEW
		1366	&& (op->face && !faces [op->face].visibility))
1532	{	1367	{
1533	for (last = top; last != floor; last = last->below)	1368	for (last = top; last != floor; last = last->below)
1534	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1369	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1535	break;	1370	break;
		1371
1536	/* Check to see if we found the object that blocks view,	1372	/* Check to see if we found the object that blocks view,
1537	* and make sure we have a below pointer for it so that	1373	* and make sure we have a below pointer for it so that
1538	* we can get inserted below this one, which requires we	1374	* we can get inserted below this one, which requires we
1539	* set top to the object below us.	1375	* set top to the object below us.
1540	*/	1376	*/
1541	if (last && last->below && last != floor)	1377	if (last && last->below && last != floor)
1542	top = last->below;	1378	top = last->below;
1543	}	1379	}
1544	} /* If objects on this space */	1380	} /* If objects on this space */
1545		1381
1546	if (flag & INS_MAP_LOAD)
1547	top = GET_MAP_TOP (op->map, op->x, op->y);
1548
1549	if (flag & INS_ABOVE_FLOOR_ONLY)	1382	if (flag & INS_ABOVE_FLOOR_ONLY)
1550	top = floor;	1383	top = floor;
1551		1384
1552	/* Top is the object that our object (op) is going to get inserted above.	1385	/* Top is the object that our object (op) is going to get inserted above.
1553	*/	1386	*/
1554		1387
1555	/* First object on this space */	1388	/* First object on this space */
1556	if (!top)	1389	if (!top)
1557	{	1390	{
1558	op->above = GET_MAP_OB (op->map, op->x, op->y);	1391	op->above = ms.bot;
1559		1392
1560	if (op->above)	1393	if (op->above)
1561	op->above->below = op;	1394	op->above->below = op;
1562		1395
1563	op->below = NULL;	1396	op->below = 0;
1564	SET_MAP_OB (op->map, op->x, op->y, op);	1397	ms.bot = op;
1565	}	1398	}
1566	else	1399	else
1567	{ /* get inserted into the stack above top */	1400	{ /* get inserted into the stack above top */
1568	op->above = top->above;	1401	op->above = top->above;
1569		1402
…		…
1572		1405
1573	op->below = top;	1406	op->below = top;
1574	top->above = op;	1407	top->above = op;
1575	}	1408	}
1576		1409
1577	if (op->above == NULL)	1410	if (!op->above)
1578	SET_MAP_TOP (op->map, op->x, op->y, op);	1411	ms.top = op;
1579	} /* else not INS_BELOW_ORIGINATOR */	1412	} /* else not INS_BELOW_ORIGINATOR */
1580		1413
1581	if (op->type == PLAYER)	1414	if (op->type == PLAYER)
		1415	{
1582	op->contr->do_los = 1;	1416	op->contr->do_los = 1;
		1417	++op->map->players;
		1418	op->map->touch ();
		1419	}
1583		1420
1584	/* If we have a floor, we know the player, if any, will be above	1421	op->map->dirty = true;
1585	* it, so save a few ticks and start from there.	1422
1586	*/	1423	if (object *pl = ms.player ())
1587	if (!(flag & INS_MAP_LOAD))	1424	pl->contr->ns->floorbox_update ();
1588	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1589	if (tmp->type == PLAYER)
1590	tmp->contr->socket.update_look = 1;
1591		1425
1592	/* If this object glows, it may affect lighting conditions that are	1426	/* If this object glows, it may affect lighting conditions that are
1593	* visible to others on this map. But update_all_los is really	1427	* visible to others on this map. But update_all_los is really
1594	* an inefficient way to do this, as it means los for all players	1428	* an inefficient way to do this, as it means los for all players
1595	* on the map will get recalculated. The players could very well	1429	* on the map will get recalculated. The players could very well
1596	* be far away from this change and not affected in any way -	1430	* be far away from this change and not affected in any way -
1597	* this should get redone to only look for players within range,	1431	* this should get redone to only look for players within range,
1598	* or just updating the P_NEED_UPDATE for spaces within this area	1432	* or just updating the P_UPTODATE for spaces within this area
1599	* of effect may be sufficient.	1433	* of effect may be sufficient.
1600	*/	1434	*/
1601	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1435	if (op->map->darkness && (op->glow_radius != 0))
1602	update_all_los (op->map, op->x, op->y);	1436	update_all_los (op->map, op->x, op->y);
1603		1437
1604	/* updates flags (blocked, alive, no magic, etc) for this map space */	1438	/* updates flags (blocked, alive, no magic, etc) for this map space */
1605	update_object (op, UP_OBJ_INSERT);	1439	update_object (op, UP_OBJ_INSERT);
1606		1440
		1441	INVOKE_OBJECT (INSERT, op);
		1442
1607	/* Don't know if moving this to the end will break anything. However,	1443	/* Don't know if moving this to the end will break anything. However,
1608	* we want to have update_look set above before calling this.	1444	* we want to have floorbox_update called before calling this.
1609	*	1445	*
1610	* check_move_on() must be after this because code called from	1446	* check_move_on() must be after this because code called from
1611	* check_move_on() depends on correct map flags (so functions like	1447	* check_move_on() depends on correct map flags (so functions like
1612	* blocked() and wall() work properly), and these flags are updated by	1448	* blocked() and wall() work properly), and these flags are updated by
1613	* update_object().	1449	* update_object().
1614	*/	1450	*/
1615		1451
1616	/* if this is not the head or flag has been passed, don't check walk on status */	1452	/* if this is not the head or flag has been passed, don't check walk on status */
1617	if (!(flag & INS_NO_WALK_ON) && !op->head)	1453	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1618	{	1454	{
1619	if (check_move_on (op, originator))	1455	if (check_move_on (op, originator))
1620	return NULL;	1456	return 0;
1621		1457
1622	/* If we are a multi part object, lets work our way through the check	1458	/* If we are a multi part object, lets work our way through the check
1623	* walk on's.	1459	* walk on's.
1624	*/	1460	*/
1625	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1461	for (object *tmp = op->more; tmp; tmp = tmp->more)
1626	if (check_move_on (tmp, originator))	1462	if (check_move_on (tmp, originator))
1627	return NULL;	1463	return 0;
1628	}	1464	}
1629		1465
1630	return op;	1466	return op;
1631	}	1467	}
1632		1468
1633	/* this function inserts an object in the map, but if it	1469	/* this function inserts an object in the map, but if it
1634	* finds an object of its own type, it'll remove that one first.	1470	* finds an object of its own type, it'll remove that one first.
1635	* op is the object to insert it under: supplies x and the map.	1471	* op is the object to insert it under: supplies x and the map.
1636	*/	1472	*/
1637	void	1473	void
1638	replace_insert_ob_in_map (const char *arch_string, object *op)	1474	replace_insert_ob_in_map (const char *arch_string, object *op)
1639	{	1475	{
1640	object *
1641	tmp;
1642	object *
1643	tmp1;
1644
1645	/* first search for itself and remove any old instances */	1476	/* first search for itself and remove any old instances */
1646		1477
1647	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1478	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1648	{
1649	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1479	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1650	{	1480	tmp->destroy (1);
1651	remove_ob (tmp);
1652	free_object (tmp);
1653	}
1654	}
1655		1481
1656	tmp1 = arch_to_object (find_archetype (arch_string));	1482	object *tmp = arch_to_object (archetype::find (arch_string));
1657		1483
1658	tmp1->x = op->x;	1484	tmp->x = op->x;
1659	tmp1->y = op->y;	1485	tmp->y = op->y;
		1486
1660	insert_ob_in_map (tmp1, op->map, op, 0);	1487	insert_ob_in_map (tmp, op->map, op, 0);
1661	}	1488	}
1662
1663	/*
1664	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1665	* is returned contains nr objects, and the remaining parts contains
1666	* the rest (or is removed and freed if that number is 0).
1667	* On failure, NULL is returned, and the reason put into the
1668	* global static errmsg array.
1669	*/
1670		1489
1671	object *	1490	object *
1672	get_split_ob (object *orig_ob, uint32 nr)	1491	object::insert_at (object *where, object *originator, int flags)
1673	{	1492	{
		1493	if (where->env)
		1494	return where->env->insert (this);
		1495	else
		1496	return where->map->insert (this, where->x, where->y, originator, flags);
		1497	}
		1498
		1499	// find player who can see this object
1674	object *	1500	object *
1675	newob;	1501	object::visible_to () const
1676	int	1502	{
1677	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1503	if (!flag [FLAG_REMOVED])
1678
1679	if (orig_ob->nrof < nr)
1680	{
1681	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1682	return NULL;
1683	}	1504	{
1684		1505	// see if we are in a container of sorts
1685	newob = object_create_clone (orig_ob);	1506	if (env)
1686
1687	if ((orig_ob->nrof -= nr) < 1)
1688	{
1689	if (!is_removed)
1690	remove_ob (orig_ob);
1691	free_object2 (orig_ob, 1);
1692	}
1693	else if (!is_removed)
1694	{
1695	if (orig_ob->env != NULL)
1696	sub_weight (orig_ob->env, orig_ob->weight * nr);
1697	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
1698	{
1699	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1700	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1701	return NULL;
1702	}	1507	{
1703	}	1508	// the player inventory itself is always visible
		1509	if (env->type == PLAYER)
		1510	return env;
1704		1511
1705	newob->nrof = nr;	1512	// else a player could have our env open
		1513	object *envest = env->outer_env ();
1706		1514
		1515	// the player itself is always on a map, so we will find him here
		1516	// even if our inv is in a player.
		1517	if (envest->is_on_map ())
		1518	if (object *pl = envest->ms ().player ())
		1519	if (pl->container == env)
		1520	return pl;
		1521	}
		1522	else
		1523	{
		1524	// maybe there is a player standing on the same mapspace
		1525	// this will catch the case where "this" is a player
		1526	if (object *pl = ms ().player ())
		1527	return pl;
		1528	}
		1529	}
		1530
1707	return newob;	1531	return 0;
1708	}	1532	}
1709		1533
1710	/*	1534	/*
1711	* decrease_ob_nr(object, number) decreases a specified number from	1535	* decrease(object, number) decreases a specified number from
1712	* the amount of an object. If the amount reaches 0, the object	1536	* the amount of an object. If the amount reaches 0, the object
1713	* is subsequently removed and freed.	1537	* is subsequently removed and freed.
1714	*	1538	*
1715	* Return value: 'op' if something is left, NULL if the amount reached 0	1539	* Return value: 'op' if something is left, NULL if the amount reached 0
1716	*/	1540	*/
		1541	bool
		1542	object::decrease (sint32 nr)
		1543	{
		1544	if (!nr)
		1545	return true;
1717		1546
		1547	nr = min (nr, nrof);
		1548
		1549	nrof -= nr;
		1550
		1551	if (nrof)
		1552	{
		1553	adjust_weight (env, -weight * nr); // carrying == 0
		1554
		1555	if (object *pl = visible_to ())
		1556	esrv_update_item (UPD_NROF, pl, this);
		1557
		1558	return true;
		1559	}
		1560	else
		1561	{
		1562	destroy (1);
		1563	return false;
		1564	}
		1565	}
		1566
		1567	/*
		1568	* split(ob,nr) splits up ob into two parts. The part which
		1569	* is returned contains nr objects, and the remaining parts contains
		1570	* the rest (or is removed and returned if that number is 0).
		1571	* On failure, NULL is returned.
		1572	*/
1718	object *	1573	object *
1719	decrease_ob_nr (object *op, uint32 i)	1574	object::split (sint32 nr)
1720	{	1575	{
1721	object *tmp;	1576	int have = number_of ();
1722	player *pl;
1723		1577
1724	if (i == 0) /* objects with op->nrof require this check */	1578	if (have < nr)
1725	return op;	1579	return 0;
1726		1580	else if (have == nr)
1727	if (i > op->nrof)
1728	i = op->nrof;
1729
1730	if (QUERY_FLAG (op, FLAG_REMOVED))
1731	op->nrof -= i;
1732	else if (op->env != NULL)
1733	{	1581	{
1734	/* is this object in the players inventory, or sub container
1735	* therein?
1736	*/
1737	tmp = is_player_inv (op->env);
1738	/* nope. Is this a container the player has opened?
1739	* If so, set tmp to that player.
1740	* IMO, searching through all the players will mostly
1741	* likely be quicker than following op->env to the map,
1742	* and then searching the map for a player.
1743	*/
1744	if (!tmp)
1745	{
1746	for (pl = first_player; pl; pl = pl->next)
1747	if (pl->ob->container == op->env)
1748	break;
1749	if (pl)
1750	tmp = pl->ob;
1751	else
1752	tmp = NULL;
1753	}
1754
1755	if (i < op->nrof)
1756	{
1757	sub_weight (op->env, op->weight * i);
1758	op->nrof -= i;
1759	if (tmp)
1760	{
1761	esrv_send_item (tmp, op);
1762	}
1763	}
1764	else
1765	{
1766	remove_ob (op);	1582	remove ();
1767	op->nrof = 0;	1583	return this;
1768	if (tmp)
1769	{
1770	esrv_del_item (tmp->contr, op->count);
1771	}
1772	}
1773	}	1584	}
1774	else	1585	else
1775	{	1586	{
1776	object *above = op->above;	1587	decrease (nr);
1777		1588
1778	if (i < op->nrof)	1589	object *op = object_create_clone (this);
1779	op->nrof -= i;	1590	op->nrof = nr;
1780	else
1781	{
1782	remove_ob (op);
1783	op->nrof = 0;
1784	}
1785
1786	/* Since we just removed op, op->above is null */
1787	for (tmp = above; tmp != NULL; tmp = tmp->above)
1788	if (tmp->type == PLAYER)
1789	{
1790	if (op->nrof)
1791	esrv_send_item (tmp, op);
1792	else
1793	esrv_del_item (tmp->contr, op->count);
1794	}
1795	}
1796
1797	if (op->nrof)
1798	return op;	1591	return op;
1799	else
1800	{	1592	}
1801	free_object (op);	1593	}
		1594
		1595	object *
		1596	insert_ob_in_ob (object *op, object *where)
		1597	{
		1598	if (!where)
		1599	{
		1600	char *dump = dump_object (op);
		1601	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1602	free (dump);
1802	return NULL;	1603	return op;
1803	}
1804	}
1805
1806	/*
1807	* add_weight(object, weight) adds the specified weight to an object,
1808	* and also updates how much the environment(s) is/are carrying.
1809	*/
1810
1811	void
1812	add_weight (object *op, signed long weight)
1813	{
1814	while (op != NULL)
1815	{	1604	}
1816	if (op->type == CONTAINER)
1817	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1818		1605
1819	op->carrying += weight;	1606	if (where->head_ () != where)
1820	op = op->env;
1821	}	1607	{
1822	}	1608	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1609	where = where->head;
		1610	}
1823		1611
		1612	return where->insert (op);
		1613	}
		1614
1824	/*	1615	/*
1825	* insert_ob_in_ob(op,environment):	1616	* env->insert (op)
1826	* This function inserts the object op in the linked list	1617	* This function inserts the object op in the linked list
1827	* inside the object environment.	1618	* inside the object environment.
1828	*	1619	*
1829	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1830	* the inventory at the last position or next to other objects of the same
1831	* type.
1832	* Frank: Now sorted by type, archetype and magic!
1833	*
1834	* The function returns now pointer to inserted item, and return value can	1620	* The function returns now pointer to inserted item, and return value can
1835	* be != op, if items are merged. -Tero	1621	* be != op, if items are merged. -Tero
1836	*/	1622	*/
1837
1838	object *	1623	object *
1839	insert_ob_in_ob (object *op, object *where)	1624	object::insert (object *op)
1840	{	1625	{
1841	object *
1842	tmp, *
1843	otmp;
1844
1845	if (!QUERY_FLAG (op, FLAG_REMOVED))
1846	{
1847	dump_object (op);
1848	LOG (llevError, "Trying to insert (ob) inserted object.\n%s\n", errmsg);
1849	return op;
1850	}
1851
1852	if (where == NULL)
1853	{
1854	dump_object (op);
1855	LOG (llevError, "Trying to put object in NULL.\n%s\n", errmsg);
1856	return op;
1857	}
1858
1859	if (where->head)
1860	{
1861	LOG (llevDebug, "Warning: Tried to insert object wrong part of multipart object.\n");
1862	where = where->head;
1863	}
1864
1865	if (op->more)	1626	if (op->more)
1866	{	1627	{
1867	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);	1628	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1868	return op;	1629	return op;
1869	}	1630	}
1870		1631
1871	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1632	op->remove ();
1872	CLEAR_FLAG (op, FLAG_REMOVED);	1633
		1634	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1635
1873	if (op->nrof)	1636	if (op->nrof)
1874	{
1875	for (tmp = where->inv; tmp != NULL; tmp = tmp->below)	1637	for (object *tmp = inv; tmp; tmp = tmp->below)
1876	if (CAN_MERGE (tmp, op))	1638	if (object::can_merge (tmp, op))
1877	{	1639	{
1878	/* return the original object and remove inserted object	1640	/* return the original object and remove inserted object
1879	(client needs the original object) */	1641	(client needs the original object) */
1880	tmp->nrof += op->nrof;	1642	tmp->nrof += op->nrof;
1881	/* Weight handling gets pretty funky. Since we are adding to	1643	adjust_weight (this, op->total_weight ());
1882	* tmp->nrof, we need to increase the weight.	1644
1883	*/	1645	op->destroy (1);
1884	add_weight (where, op->weight * op->nrof);
1885	SET_FLAG (op, FLAG_REMOVED);
1886	free_object (op); /* free the inserted object */
1887	op = tmp;	1646	op = tmp;
1888	remove_ob (op); /* and fix old object's links */	1647	goto inserted;
1889	CLEAR_FLAG (op, FLAG_REMOVED);
1890	break;
1891	}	1648	}
1892		1649
1893	/* I assume combined objects have no inventory	1650	op->owner = 0; // it's his/hers now. period.
1894	* We add the weight - this object could have just been removed
1895	* (if it was possible to merge). calling remove_ob will subtract
1896	* the weight, so we need to add it in again, since we actually do
1897	* the linking below
1898	*/
1899	add_weight (where, op->weight * op->nrof);
1900	}
1901	else
1902	add_weight (where, (op->weight + op->carrying));
1903
1904	otmp = is_player_inv (where);
1905	if (otmp && otmp->contr != NULL)
1906	{
1907	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1908	fix_player (otmp);
1909	}
1910
1911	op->map = NULL;	1651	op->map = 0;
1912	op->env = where;	1652	op->x = 0;
		1653	op->y = 0;
		1654
1913	op->above = NULL;	1655	op->above = 0;
1914	op->below = NULL;	1656	op->below = inv;
1915	op->x = 0, op->y = 0;	1657	op->env = this;
1916		1658
		1659	if (inv)
		1660	inv->above = op;
		1661
		1662	inv = op;
		1663
		1664	op->flag [FLAG_REMOVED] = 0;
		1665
		1666	adjust_weight (this, op->total_weight ());
		1667
		1668	inserted:
1917	/* reset the light list and los of the players on the map */	1669	/* reset the light list and los of the players on the map */
1918	if ((op->glow_radius != 0) && where->map)	1670	if (op->glow_radius && map && map->darkness)
1919	{	1671	update_all_los (map, x, y);
1920	#ifdef DEBUG_LIGHTS
1921	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1922	#endif /* DEBUG_LIGHTS */
1923	if (MAP_DARKNESS (where->map))
1924	update_all_los (where->map, where->x, where->y);
1925	}
1926		1672
1927	/* Client has no idea of ordering so lets not bother ordering it here.	1673	if (object *otmp = in_player ())
1928	* It sure simplifies this function...	1674	if (otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1929	*/	1675	otmp->update_stats ();
1930	if (where->inv == NULL)	1676
1931	where->inv = op;	1677	INVOKE_OBJECT (INSERT, this);
1932	else	1678
1933	{
1934	op->below = where->inv;
1935	op->below->above = op;
1936	where->inv = op;
1937	}
1938	return op;	1679	return op;
1939	}	1680	}
1940		1681
1941	/*	1682	/*
1942	* Checks if any objects has a move_type that matches objects	1683	* Checks if any objects has a move_type that matches objects
…		…
1956	*	1697	*
1957	* MSW 2001-07-08: Check all objects on space, not just those below	1698	* MSW 2001-07-08: Check all objects on space, not just those below
1958	* object being inserted. insert_ob_in_map may not put new objects	1699	* object being inserted. insert_ob_in_map may not put new objects
1959	* on top.	1700	* on top.
1960	*/	1701	*/
1961
1962	int	1702	int
1963	check_move_on (object *op, object *originator)	1703	check_move_on (object *op, object *originator)
1964	{	1704	{
1965	object *	1705	object *tmp;
1966	tmp;	1706	maptile *m = op->map;
1967	tag_t
1968	tag;
1969	mapstruct *
1970	m = op->map;
1971	int
1972	x = op->x, y = op->y;	1707	int x = op->x, y = op->y;
1973		1708
1974	MoveType	1709	MoveType move_on, move_slow, move_block;
1975	move_on,
1976	move_slow,
1977	move_block;
1978		1710
1979	if (QUERY_FLAG (op, FLAG_NO_APPLY))	1711	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1980	return 0;	1712	return 0;
1981
1982	tag = op->count;
1983		1713
1984	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);	1714	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1985	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);	1715	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1986	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);	1716	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1987		1717
…		…
2003		1733
2004	/* The objects have to be checked from top to bottom.	1734	/* The objects have to be checked from top to bottom.
2005	* Hence, we first go to the top:	1735	* Hence, we first go to the top:
2006	*/	1736	*/
2007		1737
2008	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1738	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
2009	{	1739	{
2010	/* Trim the search when we find the first other spell effect	1740	/* Trim the search when we find the first other spell effect
2011	* this helps performance so that if a space has 50 spell objects,	1741	* this helps performance so that if a space has 50 spell objects,
2012	* we don't need to check all of them.	1742	* we don't need to check all of them.
2013	*/	1743	*/
…		…
2031	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1761	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
2032	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1762	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
2033	{	1763	{
2034		1764
2035	float	1765	float
2036	diff = tmp->move_slow_penalty * FABS (op->speed);	1766	diff = tmp->move_slow_penalty * fabs (op->speed);
2037		1767
2038	if (op->type == PLAYER)	1768	if (op->type == PLAYER)
2039	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1769	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
2040	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1770	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
2041	diff /= 4.0;	1771	diff /= 4.0;
…		…
2048	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1778	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
2049	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))	1779	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
2050	{	1780	{
2051	move_apply (tmp, op, originator);	1781	move_apply (tmp, op, originator);
2052		1782
2053	if (was_destroyed (op, tag))	1783	if (op->destroyed ())
2054	return 1;	1784	return 1;
2055		1785
2056	/* what the person/creature stepped onto has moved the object	1786	/* what the person/creature stepped onto has moved the object
2057	* someplace new. Don't process any further - if we did,	1787	* someplace new. Don't process any further - if we did,
2058	* have a feeling strange problems would result.	1788	* have a feeling strange problems would result.
…		…
2068	/*	1798	/*
2069	* present_arch(arch, map, x, y) searches for any objects with	1799	* present_arch(arch, map, x, y) searches for any objects with
2070	* a matching archetype at the given map and coordinates.	1800	* a matching archetype at the given map and coordinates.
2071	* The first matching object is returned, or NULL if none.	1801	* The first matching object is returned, or NULL if none.
2072	*/	1802	*/
2073
2074	object *	1803	object *
2075	present_arch (const archetype *at, mapstruct *m, int x, int y)	1804	present_arch (const archetype *at, maptile *m, int x, int y)
2076	{	1805	{
2077	object *
2078	tmp;
2079
2080	if (m == NULL || out_of_map (m, x, y))	1806	if (!m || out_of_map (m, x, y))
2081	{	1807	{
2082	LOG (llevError, "Present_arch called outside map.\n");	1808	LOG (llevError, "Present_arch called outside map.\n");
2083	return NULL;	1809	return NULL;
2084	}	1810	}
2085	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1811
		1812	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2086	if (tmp->arch == at)	1813	if (tmp->arch == at)
2087	return tmp;	1814	return tmp;
		1815
2088	return NULL;	1816	return NULL;
2089	}	1817	}
2090		1818
2091	/*	1819	/*
2092	* present(type, map, x, y) searches for any objects with	1820	* present(type, map, x, y) searches for any objects with
2093	* a matching type variable at the given map and coordinates.	1821	* a matching type variable at the given map and coordinates.
2094	* The first matching object is returned, or NULL if none.	1822	* The first matching object is returned, or NULL if none.
2095	*/	1823	*/
2096
2097	object *	1824	object *
2098	present (unsigned char type, mapstruct *m, int x, int y)	1825	present (unsigned char type, maptile *m, int x, int y)
2099	{	1826	{
2100	object *
2101	tmp;
2102
2103	if (out_of_map (m, x, y))	1827	if (out_of_map (m, x, y))
2104	{	1828	{
2105	LOG (llevError, "Present called outside map.\n");	1829	LOG (llevError, "Present called outside map.\n");
2106	return NULL;	1830	return NULL;
2107	}	1831	}
2108	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1832
		1833	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
2109	if (tmp->type == type)	1834	if (tmp->type == type)
2110	return tmp;	1835	return tmp;
		1836
2111	return NULL;	1837	return NULL;
2112	}	1838	}
2113		1839
2114	/*	1840	/*
2115	* present_in_ob(type, object) searches for any objects with	1841	* present_in_ob(type, object) searches for any objects with
2116	* a matching type variable in the inventory of the given object.	1842	* a matching type variable in the inventory of the given object.
2117	* The first matching object is returned, or NULL if none.	1843	* The first matching object is returned, or NULL if none.
2118	*/	1844	*/
2119
2120	object *	1845	object *
2121	present_in_ob (unsigned char type, const object *op)	1846	present_in_ob (unsigned char type, const object *op)
2122	{	1847	{
2123	object *
2124	tmp;
2125
2126	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1848	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2127	if (tmp->type == type)	1849	if (tmp->type == type)
2128	return tmp;	1850	return tmp;
		1851
2129	return NULL;	1852	return NULL;
2130	}	1853	}
2131		1854
2132	/*	1855	/*
2133	* present_in_ob (type, str, object) searches for any objects with	1856	* present_in_ob (type, str, object) searches for any objects with
…		…
2141	* str is the string to match against. Note that we match against	1864	* str is the string to match against. Note that we match against
2142	* the object name, not the archetype name. this is so that the	1865	* the object name, not the archetype name. this is so that the
2143	* spell code can use one object type (force), but change it's name	1866	* spell code can use one object type (force), but change it's name
2144	* to be unique.	1867	* to be unique.
2145	*/	1868	*/
2146
2147	object *	1869	object *
2148	present_in_ob_by_name (int type, const char *str, const object *op)	1870	present_in_ob_by_name (int type, const char *str, const object *op)
2149	{	1871	{
2150	object *
2151	tmp;
2152
2153	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1872	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2154	{
2155	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1873	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2156	return tmp;	1874	return tmp;
2157	}	1875
2158	return NULL;	1876	return 0;
2159	}	1877	}
2160		1878
2161	/*	1879	/*
2162	* present_arch_in_ob(archetype, object) searches for any objects with	1880	* present_arch_in_ob(archetype, object) searches for any objects with
2163	* a matching archetype in the inventory of the given object.	1881	* a matching archetype in the inventory of the given object.
2164	* The first matching object is returned, or NULL if none.	1882	* The first matching object is returned, or NULL if none.
2165	*/	1883	*/
2166
2167	object *	1884	object *
2168	present_arch_in_ob (const archetype *at, const object *op)	1885	present_arch_in_ob (const archetype *at, const object *op)
2169	{	1886	{
2170	object *
2171	tmp;
2172
2173	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1887	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2174	if (tmp->arch == at)	1888	if (tmp->arch == at)
2175	return tmp;	1889	return tmp;
		1890
2176	return NULL;	1891	return NULL;
2177	}	1892	}
2178		1893
2179	/*	1894	/*
2180	* activate recursively a flag on an object inventory	1895	* activate recursively a flag on an object inventory
2181	*/	1896	*/
2182	void	1897	void
2183	flag_inv (object *op, int flag)	1898	flag_inv (object *op, int flag)
2184	{	1899	{
2185	object *
2186	tmp;
2187
2188	if (op->inv)
2189	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1900	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2190	{	1901	{
2191	SET_FLAG (tmp, flag);	1902	SET_FLAG (tmp, flag);
2192	flag_inv (tmp, flag);	1903	flag_inv (tmp, flag);
2193	}	1904	}
2194	} /*	1905	}
		1906
		1907	/*
2195	* desactivate recursively a flag on an object inventory	1908	* deactivate recursively a flag on an object inventory
2196	*/	1909	*/
2197	void	1910	void
2198	unflag_inv (object *op, int flag)	1911	unflag_inv (object *op, int flag)
2199	{	1912	{
2200	object *
2201	tmp;
2202
2203	if (op->inv)
2204	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1913	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2205	{	1914	{
2206	CLEAR_FLAG (tmp, flag);	1915	CLEAR_FLAG (tmp, flag);
2207	unflag_inv (tmp, flag);	1916	unflag_inv (tmp, flag);
2208	}	1917	}
2209	}
2210
2211	/*
2212	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2213	* all it's inventory (recursively).
2214	* If checksums are used, a player will get set_cheat called for
2215	* him/her-self and all object carried by a call to this function.
2216	*/
2217
2218	void
2219	set_cheat (object *op)
2220	{
2221	SET_FLAG (op, FLAG_WAS_WIZ);
2222	flag_inv (op, FLAG_WAS_WIZ);
2223	}	1918	}
2224		1919
2225	/*	1920	/*
2226	* find_free_spot(object, map, x, y, start, stop) will search for	1921	* find_free_spot(object, map, x, y, start, stop) will search for
2227	* a spot at the given map and coordinates which will be able to contain	1922	* a spot at the given map and coordinates which will be able to contain
…		…
2229	* to search (see the freearr_x/y[] definition).	1924	* to search (see the freearr_x/y[] definition).
2230	* It returns a random choice among the alternatives found.	1925	* It returns a random choice among the alternatives found.
2231	* start and stop are where to start relative to the free_arr array (1,9	1926	* start and stop are where to start relative to the free_arr array (1,9
2232	* does all 4 immediate directions). This returns the index into the	1927	* does all 4 immediate directions). This returns the index into the
2233	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1928	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2234	* Note - this only checks to see if there is space for the head of the
2235	* object - if it is a multispace object, this should be called for all
2236	* pieces.
2237	* Note2: This function does correctly handle tiled maps, but does not	1929	* Note: This function does correctly handle tiled maps, but does not
2238	* inform the caller. However, insert_ob_in_map will update as	1930	* inform the caller. However, insert_ob_in_map will update as
2239	* necessary, so the caller shouldn't need to do any special work.	1931	* necessary, so the caller shouldn't need to do any special work.
2240	* Note - updated to take an object instead of archetype - this is necessary	1932	* Note - updated to take an object instead of archetype - this is necessary
2241	* because arch_blocked (now ob_blocked) needs to know the movement type	1933	* because arch_blocked (now ob_blocked) needs to know the movement type
2242	* to know if the space in question will block the object. We can't use	1934	* to know if the space in question will block the object. We can't use
2243	* the archetype because that isn't correct if the monster has been	1935	* the archetype because that isn't correct if the monster has been
2244	* customized, changed states, etc.	1936	* customized, changed states, etc.
2245	*/	1937	*/
2246
2247	int	1938	int
2248	find_free_spot (const object *ob, mapstruct *m, int x, int y, int start, int stop)	1939	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2249	{	1940	{
2250	int
2251	i,
2252	index = 0, flag;
2253	static int
2254	altern[SIZEOFFREE];	1941	int altern[SIZEOFFREE];
		1942	int index = 0, flag;
2255		1943
2256	for (i = start; i < stop; i++)	1944	for (int i = start; i < stop; i++)
2257	{	1945	{
2258	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1946	mapxy pos (m, x, y); pos.move (i);
2259	if (!flag)	1947
		1948	if (!pos.normalise ())
		1949	continue;
		1950
		1951	mapspace &ms = *pos;
		1952
		1953	if (ms.flags () & P_IS_ALIVE)
		1954	continue;
		1955
		1956	/* However, often
		1957	* ob doesn't have any move type (when used to place exits)
		1958	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1959	*/
		1960	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1961	{
2260	altern[index++] = i;	1962	altern [index++] = i;
		1963	continue;
		1964	}
2261		1965
2262	/* Basically, if we find a wall on a space, we cut down the search size.	1966	/* Basically, if we find a wall on a space, we cut down the search size.
2263	* In this way, we won't return spaces that are on another side of a wall.	1967	* In this way, we won't return spaces that are on another side of a wall.
2264	* This mostly work, but it cuts down the search size in all directions -	1968	* This mostly work, but it cuts down the search size in all directions -
2265	* if the space being examined only has a wall to the north and empty	1969	* if the space being examined only has a wall to the north and empty
2266	* spaces in all the other directions, this will reduce the search space	1970	* spaces in all the other directions, this will reduce the search space
2267	* to only the spaces immediately surrounding the target area, and	1971	* to only the spaces immediately surrounding the target area, and
2268	* won't look 2 spaces south of the target space.	1972	* won't look 2 spaces south of the target space.
2269	*/	1973	*/
2270	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	1974	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1975	{
2271	stop = maxfree[i];	1976	stop = maxfree[i];
		1977	continue;
		1978	}
		1979
		1980	/* Note it is intentional that we check ob - the movement type of the
		1981	* head of the object should correspond for the entire object.
		1982	*/
		1983	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1984	continue;
		1985
		1986	if (ob->blocked (m, pos.x, pos.y))
		1987	continue;
		1988
		1989	altern [index++] = i;
2272	}	1990	}
		1991
2273	if (!index)	1992	if (!index)
2274	return -1;	1993	return -1;
		1994
2275	return altern[RANDOM () % index];	1995	return altern [rndm (index)];
2276	}	1996	}
2277		1997
2278	/*	1998	/*
2279	* find_first_free_spot(archetype, mapstruct, x, y) works like	1999	* find_first_free_spot(archetype, maptile, x, y) works like
2280	* find_free_spot(), but it will search max number of squares.	2000	* find_free_spot(), but it will search max number of squares.
2281	* But it will return the first available spot, not a random choice.	2001	* But it will return the first available spot, not a random choice.
2282	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2002	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2283	*/	2003	*/
2284
2285	int	2004	int
2286	find_first_free_spot (const object *ob, mapstruct *m, int x, int y)	2005	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2287	{	2006	{
2288	int
2289	i;
2290
2291	for (i = 0; i < SIZEOFFREE; i++)	2007	for (int i = 0; i < SIZEOFFREE; i++)
2292	{
2293	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2008	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2294	return i;	2009	return i;
2295	}	2010
2296	return -1;	2011	return -1;
2297	}	2012	}
2298		2013
2299	/*	2014	/*
2300	* The function permute(arr, begin, end) randomly reorders the array	2015	* The function permute(arr, begin, end) randomly reorders the array
2301	* arr[begin..end-1].	2016	* arr[begin..end-1].
		2017	* now uses a fisher-yates shuffle, old permute was broken
2302	*/	2018	*/
2303	static void	2019	static void
2304	permute (int *arr, int begin, int end)	2020	permute (int *arr, int begin, int end)
2305	{	2021	{
2306	int	2022	arr += begin;
2307	i,
2308	j,
2309	tmp,
2310	len;
2311
2312	len = end - begin;	2023	end -= begin;
2313	for (i = begin; i < end; i++)
2314	{
2315	j = begin + RANDOM () % len;
2316		2024
2317	tmp = arr[i];	2025	while (--end)
2318	arr[i] = arr[j];	2026	swap (arr [end], arr [rndm (end + 1)]);
2319	arr[j] = tmp;
2320	}
2321	}	2027	}
2322		2028
2323	/* new function to make monster searching more efficient, and effective!	2029	/* new function to make monster searching more efficient, and effective!
2324	* This basically returns a randomized array (in the passed pointer) of	2030	* This basically returns a randomized array (in the passed pointer) of
2325	* the spaces to find monsters. In this way, it won't always look for	2031	* the spaces to find monsters. In this way, it won't always look for
…		…
2328	* the 3x3 area will be searched, just not in a predictable order.	2034	* the 3x3 area will be searched, just not in a predictable order.
2329	*/	2035	*/
2330	void	2036	void
2331	get_search_arr (int *search_arr)	2037	get_search_arr (int *search_arr)
2332	{	2038	{
2333	int	2039	int i;
2334	i;
2335		2040
2336	for (i = 0; i < SIZEOFFREE; i++)	2041	for (i = 0; i < SIZEOFFREE; i++)
2337	{
2338	search_arr[i] = i;	2042	search_arr[i] = i;
2339	}
2340		2043
2341	permute (search_arr, 1, SIZEOFFREE1 + 1);	2044	permute (search_arr, 1, SIZEOFFREE1 + 1);
2342	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2045	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2343	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2046	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2344	}	2047	}
…		…
2353	* Perhaps incorrectly, but I'm making the assumption that exclude	2056	* Perhaps incorrectly, but I'm making the assumption that exclude
2354	* is actually want is going to try and move there. We need this info	2057	* is actually want is going to try and move there. We need this info
2355	* because we have to know what movement the thing looking to move	2058	* because we have to know what movement the thing looking to move
2356	* there is capable of.	2059	* there is capable of.
2357	*/	2060	*/
2358
2359	int	2061	int
2360	find_dir (mapstruct *m, int x, int y, object *exclude)	2062	find_dir (maptile *m, int x, int y, object *exclude)
2361	{	2063	{
2362	int
2363	i,
2364	max = SIZEOFFREE, mflags;	2064	int i, max = SIZEOFFREE, mflags;
2365		2065
2366	sint16 nx, ny;	2066	sint16 nx, ny;
2367	object *	2067	object *tmp;
2368	tmp;	2068	maptile *mp;
2369	mapstruct *
2370	mp;
2371		2069
2372	MoveType blocked, move_type;	2070	MoveType blocked, move_type;
2373		2071
2374	if (exclude && exclude->head)	2072	if (exclude && exclude->head_ () != exclude)
2375	{	2073	{
2376	exclude = exclude->head;	2074	exclude = exclude->head;
2377	move_type = exclude->move_type;	2075	move_type = exclude->move_type;
2378	}	2076	}
2379	else	2077	else
…		…
2387	mp = m;	2085	mp = m;
2388	nx = x + freearr_x[i];	2086	nx = x + freearr_x[i];
2389	ny = y + freearr_y[i];	2087	ny = y + freearr_y[i];
2390		2088
2391	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2089	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2090
2392	if (mflags & P_OUT_OF_MAP)	2091	if (mflags & P_OUT_OF_MAP)
2393	{
2394	max = maxfree[i];	2092	max = maxfree[i];
2395	}
2396	else	2093	else
2397	{	2094	{
2398	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2095	mapspace &ms = mp->at (nx, ny);
		2096
		2097	blocked = ms.move_block;
2399		2098
2400	if ((move_type & blocked) == move_type)	2099	if ((move_type & blocked) == move_type)
2401	{
2402	max = maxfree[i];	2100	max = maxfree[i];
2403	}
2404	else if (mflags & P_IS_ALIVE)	2101	else if (mflags & P_IS_ALIVE)
2405	{	2102	{
2406	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2103	for (tmp = ms.bot; tmp; tmp = tmp->above)
2407	{	2104	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2408	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2105	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2409	{
2410	break;	2106	break;
2411	}	2107
2412	}
2413	if (tmp)	2108	if (tmp)
2414	{
2415	return freedir[i];	2109	return freedir[i];
2416	}
2417	}	2110	}
2418	}	2111	}
2419	}	2112	}
		2113
2420	return 0;	2114	return 0;
2421	}	2115	}
2422		2116
2423	/*	2117	/*
2424	* distance(object 1, object 2) will return the square of the	2118	* distance(object 1, object 2) will return the square of the
2425	* distance between the two given objects.	2119	* distance between the two given objects.
2426	*/	2120	*/
2427
2428	int	2121	int
2429	distance (const object *ob1, const object *ob2)	2122	distance (const object *ob1, const object *ob2)
2430	{	2123	{
2431	int
2432	i;
2433
2434	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2124	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2435	return i;
2436	}	2125	}
2437		2126
2438	/*	2127	/*
2439	* find_dir_2(delta-x,delta-y) will return a direction in which	2128	* find_dir_2(delta-x,delta-y) will return a direction in which
2440	* an object which has subtracted the x and y coordinates of another	2129	* an object which has subtracted the x and y coordinates of another
2441	* object, needs to travel toward it.	2130	* object, needs to travel toward it.
2442	*/	2131	*/
2443
2444	int	2132	int
2445	find_dir_2 (int x, int y)	2133	find_dir_2 (int x, int y)
2446	{	2134	{
2447	int	2135	int q;
2448	q;
2449		2136
2450	if (y)	2137	if (y)
2451	q = x * 100 / y;	2138	q = x * 100 / y;
2452	else if (x)	2139	else if (x)
2453	q = -300 * x;	2140	q = -300 * x;
…		…
2478		2165
2479	return 3;	2166	return 3;
2480	}	2167	}
2481		2168
2482	/*	2169	/*
2483	* absdir(int): Returns a number between 1 and 8, which represent
2484	* the "absolute" direction of a number (it actually takes care of
2485	* "overflow" in previous calculations of a direction).
2486	*/
2487
2488	int
2489	absdir (int d)
2490	{
2491	while (d < 1)
2492	d += 8;
2493	while (d > 8)
2494	d -= 8;
2495	return d;
2496	}
2497
2498	/*
2499	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2170	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2500	* between two directions (which are expected to be absolute (see absdir())	2171	* between two directions (which are expected to be absolute (see absdir())
2501	*/	2172	*/
2502
2503	int	2173	int
2504	dirdiff (int dir1, int dir2)	2174	dirdiff (int dir1, int dir2)
2505	{	2175	{
2506	int	2176	int d;
2507	d;
2508		2177
2509	d = abs (dir1 - dir2);	2178	d = abs (dir1 - dir2);
2510	if (d > 4)	2179	if (d > 4)
2511	d = 8 - d;	2180	d = 8 - d;
		2181
2512	return d;	2182	return d;
2513	}	2183	}
2514		2184
2515	/* peterm:	2185	/* peterm:
2516	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2186	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2519	* This basically means that if direction is 15, then it could either go	2189	* This basically means that if direction is 15, then it could either go
2520	* direction 4, 14, or 16 to get back to where we are.	2190	* direction 4, 14, or 16 to get back to where we are.
2521	* Moved from spell_util.c to object.c with the other related direction	2191	* Moved from spell_util.c to object.c with the other related direction
2522	* functions.	2192	* functions.
2523	*/	2193	*/
2524
2525	int
2526	reduction_dir[SIZEOFFREE][3] = {	2194	int reduction_dir[SIZEOFFREE][3] = {
2527	{0, 0, 0}, /* 0 */	2195	{0, 0, 0}, /* 0 */
2528	{0, 0, 0}, /* 1 */	2196	{0, 0, 0}, /* 1 */
2529	{0, 0, 0}, /* 2 */	2197	{0, 0, 0}, /* 2 */
2530	{0, 0, 0}, /* 3 */	2198	{0, 0, 0}, /* 3 */
2531	{0, 0, 0}, /* 4 */	2199	{0, 0, 0}, /* 4 */
…		…
2579	* find a path to that monster that we found. If not,	2247	* find a path to that monster that we found. If not,
2580	* we don't bother going toward it. Returns 1 if we	2248	* we don't bother going toward it. Returns 1 if we
2581	* can see a direct way to get it	2249	* can see a direct way to get it
2582	* Modified to be map tile aware -.MSW	2250	* Modified to be map tile aware -.MSW
2583	*/	2251	*/
2584
2585
2586	int	2252	int
2587	can_see_monsterP (mapstruct *m, int x, int y, int dir)	2253	can_see_monsterP (maptile *m, int x, int y, int dir)
2588	{	2254	{
2589	sint16 dx, dy;	2255	sint16 dx, dy;
2590	int
2591	mflags;	2256	int mflags;
2592		2257
2593	if (dir < 0)	2258	if (dir < 0)
2594	return 0; /* exit condition: invalid direction */	2259	return 0; /* exit condition: invalid direction */
2595		2260
2596	dx = x + freearr_x[dir];	2261	dx = x + freearr_x[dir];
…		…
2609	return 0;	2274	return 0;
2610		2275
2611	/* yes, can see. */	2276	/* yes, can see. */
2612	if (dir < 9)	2277	if (dir < 9)
2613	return 1;	2278	return 1;
		2279
2614	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2280	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2615	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2281	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2282	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2616	}	2283	}
2617
2618
2619		2284
2620	/*	2285	/*
2621	* can_pick(picker, item): finds out if an object is possible to be	2286	* can_pick(picker, item): finds out if an object is possible to be
2622	* picked up by the picker. Returnes 1 if it can be	2287	* picked up by the picker. Returnes 1 if it can be
2623	* picked up, otherwise 0.	2288	* picked up, otherwise 0.
…		…
2625	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2290	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2626	* core dumps if they do.	2291	* core dumps if they do.
2627	*	2292	*
2628	* Add a check so we can't pick up invisible objects (0.93.8)	2293	* Add a check so we can't pick up invisible objects (0.93.8)
2629	*/	2294	*/
2630
2631	int	2295	int
2632	can_pick (const object *who, const object *item)	2296	can_pick (const object *who, const object *item)
2633	{	2297	{
2634	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2298	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2635	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2299	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2636	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2300	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2637	}	2301	}
2638		2302
2639
2640	/*	2303	/*
2641	* create clone from object to another	2304	* create clone from object to another
2642	*/	2305	*/
2643	object *	2306	object *
2644	object_create_clone (object *asrc)	2307	object_create_clone (object *asrc)
2645	{	2308	{
2646	object *
2647	dst = NULL, *tmp, *src, *part, *prev, *item;	2309	object *dst = 0, *tmp, *src, *prev, *item;
2648		2310
2649	if (!asrc)	2311	if (!asrc)
2650	return NULL;	2312	return 0;
2651	src = asrc;	2313
2652	if (src->head)
2653	src = src->head;	2314	src = asrc->head_ ();
2654		2315
2655	prev = NULL;	2316	prev = 0;
2656	for (part = src; part; part = part->more)	2317	for (object *part = src; part; part = part->more)
2657	{	2318	{
2658	tmp = get_object ();	2319	tmp = part->clone ();
2659	copy_object (part, tmp);
2660	tmp->x -= src->x;	2320	tmp->x -= src->x;
2661	tmp->y -= src->y;	2321	tmp->y -= src->y;
		2322
2662	if (!part->head)	2323	if (!part->head)
2663	{	2324	{
2664	dst = tmp;	2325	dst = tmp;
2665	tmp->head = NULL;	2326	tmp->head = 0;
2666	}	2327	}
2667	else	2328	else
2668	{
2669	tmp->head = dst;	2329	tmp->head = dst;
2670	}	2330
2671	tmp->more = NULL;	2331	tmp->more = 0;
		2332
2672	if (prev)	2333	if (prev)
2673	prev->more = tmp;	2334	prev->more = tmp;
		2335
2674	prev = tmp;	2336	prev = tmp;
2675	}	2337	}
2676		2338
2677	/*** copy inventory ***/
2678	for (item = src->inv; item; item = item->below)	2339	for (item = src->inv; item; item = item->below)
2679	{
2680	(void) insert_ob_in_ob (object_create_clone (item), dst);	2340	insert_ob_in_ob (object_create_clone (item), dst);
2681	}
2682		2341
2683	return dst;	2342	return dst;
2684	}
2685
2686	/* return true if the object was destroyed, 0 otherwise */
2687	int
2688	was_destroyed (const object *op, tag_t old_tag)
2689	{
2690	/* checking for FLAG_FREED isn't necessary, but makes this function more
2691	* robust */
2692	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2693	}
2694
2695	/* GROS - Creates an object using a string representing its content. */
2696
2697	/* Basically, we save the content of the string to a temp file, then call */
2698
2699	/* load_object on it. I admit it is a highly inefficient way to make things, */
2700
2701	/* but it was simple to make and allows reusing the load_object function. */
2702
2703	/* Remember not to use load_object_str in a time-critical situation. */
2704
2705	/* Also remember that multiparts objects are not supported for now. */
2706
2707	object *
2708	load_object_str (const char *obstr)
2709	{
2710	object *
2711	op;
2712	char
2713	filename[MAX_BUF];
2714
2715	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2716
2717	FILE *
2718	tempfile = fopen (filename, "w");
2719
2720	if (tempfile == NULL)
2721	{
2722	LOG (llevError, "Error - Unable to access load object temp file\n");
2723	return NULL;
2724	};
2725	fprintf (tempfile, obstr);
2726	fclose (tempfile);
2727
2728	op = get_object ();
2729
2730	object_thawer thawer (filename);
2731
2732	if (thawer)
2733	load_object (thawer, op, 0);
2734
2735	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2736	CLEAR_FLAG (op, FLAG_REMOVED);
2737
2738	return op;
2739	}	2343	}
2740		2344
2741	/* This returns the first object in who's inventory that	2345	/* This returns the first object in who's inventory that
2742	* has the same type and subtype match.	2346	* has the same type and subtype match.
2743	* returns NULL if no match.	2347	* returns NULL if no match.
2744	*/	2348	*/
2745	object *	2349	object *
2746	find_obj_by_type_subtype (const object *who, int type, int subtype)	2350	find_obj_by_type_subtype (const object *who, int type, int subtype)
2747	{	2351	{
2748	object *
2749	tmp;
2750
2751	for (tmp = who->inv; tmp; tmp = tmp->below)	2352	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2752	if (tmp->type == type && tmp->subtype == subtype)	2353	if (tmp->type == type && tmp->subtype == subtype)
2753	return tmp;	2354	return tmp;
2754		2355
2755	return NULL;	2356	return 0;
2756	}	2357	}
2757		2358
2758	/* If ob has a field named key, return the link from the list,	2359	/* If ob has a field named key, return the link from the list,
2759	* otherwise return NULL.	2360	* otherwise return NULL.
2760	*	2361	*
…		…
2762	* do the desired thing.	2363	* do the desired thing.
2763	*/	2364	*/
2764	key_value *	2365	key_value *
2765	get_ob_key_link (const object *ob, const char *key)	2366	get_ob_key_link (const object *ob, const char *key)
2766	{	2367	{
2767	key_value *
2768	link;
2769
2770	for (link = ob->key_values; link != NULL; link = link->next)	2368	for (key_value *link = ob->key_values; link; link = link->next)
2771	{
2772	if (link->key == key)	2369	if (link->key == key)
2773	{
2774	return link;	2370	return link;
2775	}
2776	}
2777		2371
2778	return NULL;	2372	return 0;
2779	}	2373	}
2780		2374
2781	/*	2375	/*
2782	* Returns the value of op has an extra_field for key, or NULL.	2376	* Returns the value of op has an extra_field for key, or NULL.
2783	*	2377	*
…		…
2786	* The returned string is shared.	2380	* The returned string is shared.
2787	*/	2381	*/
2788	const char *	2382	const char *
2789	get_ob_key_value (const object *op, const char *const key)	2383	get_ob_key_value (const object *op, const char *const key)
2790	{	2384	{
2791	key_value *	2385	key_value *link;
2792	link;	2386	shstr_cmp canonical_key (key);
2793	const char *
2794	canonical_key;
2795		2387
2796	canonical_key = shstr::find (key);
2797
2798	if (canonical_key == NULL)	2388	if (!canonical_key)
2799	{	2389	{
2800	/* 1. There being a field named key on any object	2390	/* 1. There being a field named key on any object
2801	* implies there'd be a shared string to find.	2391	* implies there'd be a shared string to find.
2802	* 2. Since there isn't, no object has this field.	2392	* 2. Since there isn't, no object has this field.
2803	* 3. Therefore, *this* object doesn't have this field.	2393	* 3. Therefore, *this* object doesn't have this field.
2804	*/	2394	*/
2805	return NULL;	2395	return 0;
2806	}	2396	}
2807		2397
2808	/* This is copied from get_ob_key_link() above -	2398	/* This is copied from get_ob_key_link() above -
2809	* only 4 lines, and saves the function call overhead.	2399	* only 4 lines, and saves the function call overhead.
2810	*/	2400	*/
2811	for (link = op->key_values; link != NULL; link = link->next)	2401	for (link = op->key_values; link; link = link->next)
2812	{
2813	if (link->key == canonical_key)	2402	if (link->key == canonical_key)
2814	{
2815	return link->value;	2403	return link->value;
2816	}	2404
2817	}
2818	return NULL;	2405	return 0;
2819	}	2406	}
2820
2821		2407
2822	/*	2408	/*
2823	* Updates the canonical_key in op to value.	2409	* Updates the canonical_key in op to value.
2824	*	2410	*
2825	* canonical_key is a shared string (value doesn't have to be).	2411	* canonical_key is a shared string (value doesn't have to be).
…		…
2830	* Returns TRUE on success.	2416	* Returns TRUE on success.
2831	*/	2417	*/
2832	int	2418	int
2833	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)	2419	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2834	{	2420	{
2835	key_value *
2836	field = NULL, *last = NULL;	2421	key_value *field = NULL, *last = NULL;
2837		2422
2838	for (field = op->key_values; field != NULL; field = field->next)	2423	for (field = op->key_values; field != NULL; field = field->next)
2839	{	2424	{
2840	if (field->key != canonical_key)	2425	if (field->key != canonical_key)
2841	{	2426	{
…		…
2850	/* Basically, if the archetype has this key set,	2435	/* Basically, if the archetype has this key set,
2851	* we need to store the null value so when we save	2436	* we need to store the null value so when we save
2852	* it, we save the empty value so that when we load,	2437	* it, we save the empty value so that when we load,
2853	* we get this value back again.	2438	* we get this value back again.
2854	*/	2439	*/
2855	if (get_ob_key_link (&op->arch->clone, canonical_key))	2440	if (get_ob_key_link (op->arch, canonical_key))
2856	field->value = 0;	2441	field->value = 0;
2857	else	2442	else
2858	{	2443	{
2859	if (last)	2444	if (last)
2860	last->next = field->next;	2445	last->next = field->next;
…		…
2869	/* IF we get here, key doesn't exist */	2454	/* IF we get here, key doesn't exist */
2870		2455
2871	/* No field, we'll have to add it. */	2456	/* No field, we'll have to add it. */
2872		2457
2873	if (!add_key)	2458	if (!add_key)
2874	{
2875	return FALSE;	2459	return FALSE;
2876	}	2460
2877	/* There isn't any good reason to store a null	2461	/* There isn't any good reason to store a null
2878	* value in the key/value list. If the archetype has	2462	* value in the key/value list. If the archetype has
2879	* this key, then we should also have it, so shouldn't	2463	* this key, then we should also have it, so shouldn't
2880	* be here. If user wants to store empty strings,	2464	* be here. If user wants to store empty strings,
2881	* should pass in ""	2465	* should pass in ""
…		…
2908	{	2492	{
2909	shstr key_ (key);	2493	shstr key_ (key);
2910		2494
2911	return set_ob_key_value_s (op, key_, value, add_key);	2495	return set_ob_key_value_s (op, key_, value, add_key);
2912	}	2496	}
		2497
		2498	object::depth_iterator::depth_iterator (object *container)
		2499	: iterator_base (container)
		2500	{
		2501	while (item->inv)
		2502	item = item->inv;
		2503	}
		2504
		2505	void
		2506	object::depth_iterator::next ()
		2507	{
		2508	if (item->below)
		2509	{
		2510	item = item->below;
		2511
		2512	while (item->inv)
		2513	item = item->inv;
		2514	}
		2515	else
		2516	item = item->env;
		2517	}
		2518
		2519	const char *
		2520	object::flag_desc (char *desc, int len) const
		2521	{
		2522	char *p = desc;
		2523	bool first = true;
		2524
		2525	*p = 0;
		2526
		2527	for (int i = 0; i < NUM_FLAGS; i++)
		2528	{
		2529	if (len <= 10) // magic constant!
		2530	{
		2531	snprintf (p, len, ",...");
		2532	break;
		2533	}
		2534
		2535	if (flag [i])
		2536	{
		2537	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2538	len -= cnt;
		2539	p += cnt;
		2540	first = false;
		2541	}
		2542	}
		2543
		2544	return desc;
		2545	}
		2546
		2547	// return a suitable string describing an object in enough detail to find it
		2548	const char *
		2549	object::debug_desc (char *info) const
		2550	{
		2551	char flagdesc[512];
		2552	char info2[256 * 4];
		2553	char *p = info;
		2554
		2555	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2556	count,
		2557	uuid.c_str (),
		2558	&name,
		2559	title ? "\",title:\"" : "",
		2560	title ? (const char *)title : "",
		2561	flag_desc (flagdesc, 512), type);
		2562
		2563	if (!this->flag[FLAG_REMOVED] && env)
		2564	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2565
		2566	if (map)
		2567	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2568
		2569	return info;
		2570	}
		2571
		2572	const char *
		2573	object::debug_desc () const
		2574	{
		2575	static char info[3][256 * 4];
		2576	static int info_idx;
		2577
		2578	return debug_desc (info [++info_idx % 3]);
		2579	}
		2580
		2581	struct region *
		2582	object::region () const
		2583	{
		2584	return map ? map->region (x, y)
		2585	: region::default_region ();
		2586	}
		2587
		2588	const materialtype_t *
		2589	object::dominant_material () const
		2590	{
		2591	if (materialtype_t *mt = name_to_material (materialname))
		2592	return mt;
		2593
		2594	return name_to_material (shstr_unknown);
		2595	}
		2596
		2597	void
		2598	object::open_container (object *new_container)
		2599	{
		2600	if (container == new_container)
		2601	return;
		2602
		2603	if (object *old_container = container)
		2604	{
		2605	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2606	return;
		2607
		2608	#if 0
		2609	// remove the "Close old_container" object.
		2610	if (object *closer = old_container->inv)
		2611	if (closer->type == CLOSE_CON)
		2612	closer->destroy ();
		2613	#endif
		2614
		2615	old_container->flag [FLAG_APPLIED] = 0;
		2616	container = 0;
		2617
		2618	esrv_update_item (UPD_FLAGS, this, old_container);
		2619	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2620	play_sound (sound_find ("chest_close"));
		2621	}
		2622
		2623	if (new_container)
		2624	{
		2625	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2626	return;
		2627
		2628	// TODO: this does not seem to serve any purpose anymore?
		2629	#if 0
		2630	// insert the "Close Container" object.
		2631	if (archetype *closer = new_container->other_arch)
		2632	{
		2633	object *closer = arch_to_object (new_container->other_arch);
		2634	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2635	new_container->insert (closer);
		2636	}
		2637	#endif
		2638
		2639	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2640
		2641	new_container->flag [FLAG_APPLIED] = 1;
		2642	container = new_container;
		2643
		2644	esrv_update_item (UPD_FLAGS, this, new_container);
		2645	esrv_send_inventory (this, new_container);
		2646	play_sound (sound_find ("chest_open"));
		2647	}
		2648	}
		2649
		2650	object *
		2651	object::force_find (const shstr name)
		2652	{
		2653	/* cycle through his inventory to look for the MARK we want to
		2654	* place
		2655	*/
		2656	for (object *tmp = inv; tmp; tmp = tmp->below)
		2657	if (tmp->type == FORCE && tmp->slaying == name)
		2658	return splay (tmp);
		2659
		2660	return 0;
		2661	}
		2662
		2663	void
		2664	object::force_add (const shstr name, int duration)
		2665	{
		2666	if (object *force = force_find (name))
		2667	force->destroy ();
		2668
		2669	object *force = get_archetype (FORCE_NAME);
		2670
		2671	force->slaying = name;
		2672	force->stats.food = 1;
		2673	force->speed_left = -1.f;
		2674
		2675	force->set_speed (duration ? 1.f / duration : 0.f);
		2676	force->flag [FLAG_IS_USED_UP] = true;
		2677	force->flag [FLAG_APPLIED] = true;
		2678
		2679	insert (force);
		2680	}
		2681
		2682	void
		2683	object::play_sound (faceidx sound)
		2684	{
		2685	if (!sound)
		2686	return;
		2687
		2688	if (flag [FLAG_REMOVED])
		2689	return;
		2690
		2691	if (env)
		2692	{
		2693	if (object *pl = in_player ())
		2694	pl->contr->play_sound (sound);
		2695	}
		2696	else
		2697	map->play_sound (sound, x, y);
		2698	}
		2699

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