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Comparing deliantra/server/common/object.C (file contents):
Revision 1.20 by root, Fri Sep 8 18:26:22 2006 UTC vs.
Revision 1.280 by root, Thu Jan 8 19:23:44 2009 UTC

1	/*	1	/*
2	* static char *rcsid_object_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	* "$Id: object.C,v 1.20 2006/09/08 18:26:22 root Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5
6	/*
7	CrossFire, A Multiplayer game for X-windows
8
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
11		7	*
12	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
13	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
14	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
15	(at your option) any later version.	11	* (at your option) any later version.
16		12	*
17	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,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	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
23	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
25		21	* The authors can be reached via e-mail to <support@deliantra.net>
26	The authors can be reached via e-mail at crossfire-devel@real-time.com
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying
31	variable. */
32	#include <global.h>	24	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	25	#include <stdio.h>
35	#include <sys/types.h>	26	#include <sys/types.h>
36	#include <sys/uio.h>	27	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	28	#include <object.h>
39	#include <funcpoint.h>	29	#include <sproto.h>
40	#include <skills.h>
41	#include <loader.h>	30	#include <loader.h>
42	int nrofallocobjects = 0;
43		31
44	object *objects; /* Pointer to the list of used objects */	32	#include <bitset>
45	object *active_objects; /* List of active objects that need to be processed */
46		33
		34	UUID UUID::cur;
		35	static uint64_t seq_next_save;
		36	static const uint64 UUID_GAP = 1<<19;
		37	uint32_t mapspace::smellcount = 10000;
		38
		39	objectvec objects;
		40	activevec actives;
		41
47	short freearr_x[SIZEOFFREE]=	42	short freearr_x[SIZEOFFREE] = {
48	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,	43	0,
		44	0, 1, 1, 1, 0, -1, -1, -1,
		45	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
49	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	46	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
		47	};
50	short freearr_y[SIZEOFFREE]=	48	short freearr_y[SIZEOFFREE] = {
51	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	49	0,
		50	-1, -1, 0, 1, 1, 1, 0, -1,
		51	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
52	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	52	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
		53	};
53	int maxfree[SIZEOFFREE]=	54	int maxfree[SIZEOFFREE] = {
54	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	55	0,
		56	9, 10, 13, 14, 17, 18, 21, 22,
		57	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
55	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	58	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		59	};
56	int freedir[SIZEOFFREE]= {	60	int freedir[SIZEOFFREE] = {
57	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	61	0,
58	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	62	1, 2, 3, 4, 5, 6, 7, 8,
		63	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
		64	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		65	};
59		66
		67	static void
		68	write_uuid (uval64 skip, bool sync)
		69	{
		70	CALL_BEGIN (2);
		71	CALL_ARG_SV (newSVval64 (skip));
		72	CALL_ARG_SV (boolSV (sync));
		73	CALL_CALL ("cf::write_uuid", G_DISCARD);
		74	CALL_END;
		75	}
		76
		77	static void
		78	read_uuid (void)
		79	{
		80	char filename[MAX_BUF];
		81
		82	sprintf (filename, "%s/uuid", settings.localdir);
		83
		84	seq_next_save = 0;
		85
		86	FILE *fp;
		87
		88	if (!(fp = fopen (filename, "r")))
		89	{
		90	if (errno == ENOENT)
		91	{
		92	LOG (llevInfo, "RESET uid to 1\n");
		93	UUID::cur.seq = 0;
		94	write_uuid (UUID_GAP, true);
		95	return;
		96	}
		97
		98	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		99	_exit (1);
		100	}
		101
		102	UUID::BUF buf;
		103	buf[0] = 0;
		104	fgets (buf, sizeof (buf), fp);
		105
		106	if (!UUID::cur.parse (buf))
		107	{
		108	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
		109	_exit (1);
		110	}
		111
		112	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
		113
		114	write_uuid (UUID_GAP, true);
		115	fclose (fp);
		116	}
		117
		118	UUID
		119	UUID::gen ()
		120	{
		121	UUID uid;
		122
		123	uid.seq = ++cur.seq;
		124
		125	if (expect_false (cur.seq >= seq_next_save))
		126	{
		127	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		128	write_uuid (UUID_GAP, false);
		129	}
		130
		131
		132	return uid;
		133	}
		134
		135	void
		136	UUID::init ()
		137	{
		138	read_uuid ();
		139	}
60		140
61	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	141	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		142	static bool
62	static int compare_ob_value_lists_one(const object * wants, const object * has) {	143	compare_ob_value_lists_one (const object *wants, const object *has)
63	key_value * wants_field;	144	{
64
65	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	145	/* n-squared behaviour (see kv_get), but I'm hoping both
66	* objects with lists are rare, and lists stay short. If not, use a	146	* objects with lists are rare, and lists stay short. If not, use a
67	* different structure or at least keep the lists sorted...	147	* different structure or at least keep the lists sorted...
68	*/	148	*/
69		149
70	/* For each field in wants, */	150	/* For each field in wants, */
71	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	151	for (key_value *kv = wants->key_values; kv; kv = kv->next)
72	key_value * has_field;	152	if (has->kv_get (kv->key) != kv->value)
73		153	return false;
74	/* Look for a field in has with the same key. */	154
75	has_field = get_ob_key_link(has, wants_field->key);
76
77	if (has_field == NULL) {
78	/* No field with that name. */
79	return FALSE;
80	}
81
82	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {
84	/* Values don't match, so this half of the comparison is false. */
85	return FALSE;
86	}
87
88	/* If we get here, we found a match. Now for the next field in wants. */
89	}
90
91	/* If we get here, every field in wants has a matching field in has. */	155	/* If we get here, every field in wants has a matching field in has. */
92	return TRUE;	156	return true;
93	}	157	}
94		158
95	/* Returns TRUE if ob1 has the same key_values as ob2. */	159	/* Returns TRUE if ob1 has the same key_values as ob2. */
		160	static bool
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	161	compare_ob_value_lists (const object *ob1, const object *ob2)
		162	{
97	/* However, there may be fields in has which aren't partnered in wants,	163	/* However, there may be fields in has which aren't partnered in wants,
98	* so we need to run the comparison *twice*. :(	164	* so we need to run the comparison *twice*. :(
99	*/	165	*/
100	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	166	return compare_ob_value_lists_one (ob1, ob2)
		167	&& compare_ob_value_lists_one (ob2, ob1);
101	}	168	}
102		169
103	/* Function examines the 2 objects given to it, and returns true if	170	/* Function examines the 2 objects given to it, and returns true if
104	* they can be merged together.	171	* they can be merged together.
105	*	172	*
106	* Note that this function appears a lot longer than the macro it	173	* Note that this function appears a lot longer than the macro it
107	* replaces - this is mostly for clarity - a decent compiler should hopefully	174	* replaces - this is mostly for clarity - a decent compiler should hopefully
108	* reduce this to the same efficiency.	175	* reduce this to the same efficiency.
109	*	176	*
110	* Check nrof variable *before* calling CAN_MERGE()	177	* Check nrof variable *before* calling can_merge()
111	*	178	*
112	* Improvements made with merge: Better checking on potion, and also	179	* Improvements made with merge: Better checking on potion, and also
113	* check weight	180	* check weight
114	*/	181	*/
115
116	bool
117	object::can_merge (object *ob1, object *ob2)	182	bool object::can_merge_slow (object *ob1, object *ob2)
118	{	183	{
119	/* A couple quicksanity checks */	184	/* A couple quicksanity checks */
120	if ((ob1 == ob2) || (ob1->type != ob2->type))	185	if (ob1 == ob2
		186	|| ob1->type != ob2->type
		187	|| ob1->speed != ob2->speed
		188	|| ob1->value != ob2->value
		189	|| ob1->name != ob2->name)
121	return 0;	190	return 0;
122		191
123	if (ob1->speed != ob2->speed)	192	/* Do not merge objects if nrof would overflow, assume nrof
		193	* is always 0 .. 2**31-1 */
		194	if (ob1->nrof > 0x7fffffff - ob2->nrof)
124	return 0;	195	return 0;
125		196
126	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
127	* value could not be stored in a sint32 (which unfortunately sometimes is
128	* used to store nrof).
129	*/
130	if (ob1->nrof + ob2->nrof >= 1UL << 31)
131	return 0;
132
133	/* If the objects have been identified, set the BEEN_APPLIED flag.	197	/* If the objects have been identified, set the BEEN_APPLIED flag.
134	* This is to the comparison of the flags below will be OK. We	198	* This is to the comparison of the flags below will be OK. We
135	* just can't ignore the been applied or identified flags, as they	199	* just can't ignore the been applied or identified flags, as they
136	* are not equal - just if it has been identified, the been_applied	200	* are not equal - just if it has been identified, the been_applied
137	* flags lose any meaning.	201	* flags lose any meaning.
138	*/	202	*/
139	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	203	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
140	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	204	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
141		205
142	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	206	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
143	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	207	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
144		208
145		209	if (ob1->arch->archname != ob2->arch->archname
146	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something
147	* being locked in inventory should prevent merging.
148	* 0x4 in flags3 is CLIENT_SENT
149	*/
150	if ((ob1->arch != ob2->arch) ||
151	(ob1->flags[0] != ob2->flags[0]) ||
152	(ob1->flags[1] != ob2->flags[1]) ||
153	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
154	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
155	(ob1->name != ob2->name) ||	210	|| ob1->name != ob2->name
156	(ob1->title != ob2->title) ||	211	|| ob1->title != ob2->title
157	(ob1->msg != ob2->msg) ||	212	|| ob1->msg != ob2->msg
158	(ob1->weight != ob2->weight) ||	213	|| ob1->weight != ob2->weight
159	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||
160	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||
161	(ob1->attacktype != ob2->attacktype) ||	214	|| ob1->attacktype != ob2->attacktype
162	(ob1->magic != ob2->magic) ||	215	|| ob1->magic != ob2->magic
163	(ob1->slaying != ob2->slaying) ||	216	|| ob1->slaying != ob2->slaying
164	(ob1->skill != ob2->skill) ||	217	|| ob1->skill != ob2->skill
165	(ob1->value != ob2->value) ||	218	|| ob1->value != ob2->value
166	(ob1->animation_id != ob2->animation_id) ||	219	|| ob1->animation_id != ob2->animation_id
		220	|| (ob1->face != ob2->face && !ob1->animation_id) // face and animation are dependent on each other
167	(ob1->client_type != ob2->client_type) ||	221	|| ob1->client_type != ob2->client_type
168	(ob1->materialname != ob2->materialname) ||	222	|| ob1->materialname != ob2->materialname
169	(ob1->lore != ob2->lore) ||	223	|| ob1->lore != ob2->lore
170	(ob1->subtype != ob2->subtype) ||	224	|| ob1->subtype != ob2->subtype
171	(ob1->move_type != ob2->move_type) ||	225	|| ob1->move_type != ob2->move_type
172	(ob1->move_block != ob2->move_block) ||	226	|| ob1->move_block != ob2->move_block
173	(ob1->move_allow != ob2->move_allow) ||	227	|| ob1->move_allow != ob2->move_allow
174	(ob1->move_on != ob2->move_on) ||	228	|| ob1->move_on != ob2->move_on
175	(ob1->move_off != ob2->move_off) ||	229	|| ob1->move_off != ob2->move_off
176	(ob1->move_slow != ob2->move_slow) ||	230	|| ob1->move_slow != ob2->move_slow
177	(ob1->move_slow_penalty != ob2->move_slow_penalty))	231	|| ob1->move_slow_penalty != ob2->move_slow_penalty
		232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
		233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats)))
178	return 0;	234	return 0;
179		235
		236	if ((ob1->flag ^ ob2->flag)
		237	.reset (FLAG_INV_LOCKED)
		238	.reset (FLAG_REMOVED)
		239	.any ())
		240	return 0;
		241
180	/* This is really a spellbook check - really, we should	242	/* This is really a spellbook check - we should in general
181	* check all objects in the inventory.	243	* not merge objects with real inventories, as splitting them
		244	* is hard.
182	*/	245	*/
183	if (ob1->inv || ob2->inv)	246	if (ob1->inv || ob2->inv)
184	{	247	{
185	/* if one object has inventory but the other doesn't, not equiv */
186	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
187	return 0;
188
189	/* Now check to see if the two inventory objects could merge */
190	if (!CAN_MERGE (ob1->inv, ob2->inv))	248	if (!(ob1->inv && ob2->inv))
191	return 0;	249	return 0; /* inventories differ in length */
		250
		251	if (ob1->inv->below || ob2->inv->below)
		252	return 0; /* more than one object in inv */
		253
		254	if (!object::can_merge (ob1->inv, ob2->inv))
		255	return 0; /* inventory objects differ */
192		256
193	/* inventory ok - still need to check rest of this object to see	257	/* inventory ok - still need to check rest of this object to see
194	* if it is valid.	258	* if it is valid.
195	*/	259	*/
196	}	260	}
…		…
204		268
205	/* Note sure why the following is the case - either the object has to	269	/* Note sure why the following is the case - either the object has to
206	* be animated or have a very low speed. Is this an attempted monster	270	* be animated or have a very low speed. Is this an attempted monster
207	* check?	271	* check?
208	*/	272	*/
209	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	273	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
210	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
211	return 0;	274	return 0;
212		275
213	switch (ob1->type)	276	switch (ob1->type)
214	{	277	{
215	case SCROLL:	278	case SCROLL:
216	if (ob1->level != ob2->level)	279	if (ob1->level != ob2->level)
217	return 0;	280	return 0;
218	break;	281	break;
219	}	282	}
220		283
221	if (ob1->key_values != NULL || ob2->key_values != NULL)	284	if (ob1->key_values || ob2->key_values)
222	{	285	{
223	/* At least one of these has key_values. */	286	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	287	if ((!ob1->key_values) != (!ob2->key_values))
225	/* One has fields, but the other one doesn't. */	288	return 0; /* One has fields, but the other one doesn't. */
226	return 0;	289
227	else if (!compare_ob_value_lists (ob1, ob2))	290	if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	291	return 0;
229	}	292	}
230		293
231	//TODO: generate an event or call into perl for additional checks
232	if (ob1->self || ob2->self)	294	if (ob1->self || ob2->self)
233	{	295	{
234	ob1->optimise ();	296	ob1->optimise ();
235	ob2->optimise ();	297	ob2->optimise ();
236		298
237	if (ob1->self || ob2->self)	299	if (ob1->self || ob2->self)
238	return 0;	300	{
		301	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		302	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		303
		304	if (k1 != k2)
		305	return 0;
		306
		307	if (k1 == 0)
		308	return 1;
		309
		310	if (!cfperl_can_merge (ob1, ob2))
		311	return 0;
		312	}
239	}	313	}
240		314
241	/* Everything passes, must be OK. */	315	/* Everything passes, must be OK. */
242	return 1;	316	return 1;
243	}	317	}
		318
		319	// find player who can see this object
		320	object *
		321	object::visible_to () const
		322	{
		323	if (client_visible () && !flag [FLAG_REMOVED])
		324	{
		325	// see if we are in a container of sorts
		326	if (env)
		327	{
		328	// the player inventory itself is always visible
		329	if (env->is_player ())
		330	return env;
		331
		332	// else a player could have our env open
		333	object *envest = env->outer_env ();
		334
		335	// the player itself is always on a map, so we will find him here
		336	// even if our inv is in a player.
		337	if (envest->is_on_map ())
		338	if (object *pl = envest->ms ().player ())
		339	if (pl->container == env)
		340	return pl;
		341	}
		342	else
		343	{
		344	// maybe there is a player standing on the same mapspace
		345	// this will catch the case where "this" is a player
		346	if (object *pl = ms ().player ())
		347	if ((!pl->container && pl->contr->ns && !pl->contr->ns->update_look)
		348	|| this == pl->container)
		349	return pl;
		350	}
		351	}
		352
		353	return 0;
		354	}
		355
		356	// adjust weight per container type ("of holding")
		357	static sint32
		358	weight_adjust_for (object *op, sint32 weight)
		359	{
		360	return op->type == CONTAINER
		361	? lerp (weight, 0, 100, 0, 100 - op->stats.Str)
		362	: weight;
		363	}
		364
244	/*	365	/*
		366	* adjust_weight(object, weight) adds the specified weight to an object,
		367	* and also updates how much the environment(s) is/are carrying.
		368	*/
		369	static void
		370	adjust_weight (object *op, sint32 weight)
		371	{
		372	while (op)
		373	{
		374	// adjust by actual difference to account for rounding errors
		375	// i.e. (w2 - w1) / f != w2 / f - w1 / f and the latter is correct
		376	weight = weight_adjust_for (op, op->carrying)
		377	- weight_adjust_for (op, op->carrying - weight);
		378
		379	if (!weight)
		380	return;
		381
		382	op->carrying += weight;
		383
		384	if (object *pl = op->visible_to ())
		385	if (pl != op) // player is handled lazily
		386	esrv_update_item (UPD_WEIGHT, pl, op);
		387
		388	op = op->env;
		389	}
		390	}
		391
		392	/*
245	* sum_weight() is a recursive function which calculates the weight	393	* this is a recursive function which calculates the weight
246	* an object is carrying. It goes through in figures out how much	394	* an object is carrying. It goes through op and figures out how much
247	* containers are carrying, and sums it up.	395	* containers are carrying, and sums it up.
248	*/	396	*/
249	signed long sum_weight(object *op) {	397	void
250	signed long sum;	398	object::update_weight ()
251	object *inv;	399	{
252	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	400	sint32 sum = 0;
		401
		402	for (object *op = inv; op; op = op->below)
		403	{
253	if (inv->inv)	404	if (op->inv)
254	sum_weight(inv);	405	op->update_weight ();
255	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	406
		407	sum += op->total_weight ();
256	}	408	}
257	if (op->type == CONTAINER && op->stats.Str)	409
258	sum = (sum * (100 - op->stats.Str))/100;	410	sum = weight_adjust_for (this, sum);
259	if(op->carrying != sum)	411
		412	if (sum != carrying)
		413	{
260	op->carrying = sum;	414	carrying = sum;
261	return sum;
262	}
263		415
		416	if (object *pl = visible_to ())
		417	if (pl != this) // player is handled lazily
		418	esrv_update_item (UPD_WEIGHT, pl, this);
		419	}
		420	}
		421
264	/**	422	/*
265	* Return the outermost environment object for a given object.	423	* Used by: Server DM commands: dumpbelow, dump. Some error messages.
266	*/	424	*/
267		425	char *
268	object *object_get_env_recursive (object *op) {
269	while (op->env != NULL)
270	op = op->env;
271	return op;
272	}
273
274	/*
275	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
276	* a better check. We basically keeping traversing up until we can't
277	* or find a player.
278	*/
279
280	object *is_player_inv (object *op) {
281	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
282	if (op->env==op)
283	op->env = NULL;
284	return op;
285	}
286
287	/*
288	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
289	* Some error messages.
290	* The result of the dump is stored in the static global errmsg array.
291	*/
292
293	void dump_object2(object *op) {
294	errmsg[0] = 0;
295	return;
296	//TODO//D#d#
297	#if 0
298	char *cp;
299	/* object *tmp;*/
300
301	if(op->arch!=NULL) {
302	strcat(errmsg,"arch ");
303	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
304	strcat(errmsg,"\n");
305	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
306	strcat(errmsg,cp);
307	#if 0
308	/* Don't dump player diffs - they are too long, mostly meaningless, and
309	* will overflow the buffer.
310	* Changed so that we don't dump inventory either. This may
311	* also overflow the buffer.
312	*/
313	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	} else {
320	strcat(errmsg,"Object ");
321	if (op->name==NULL) strcat(errmsg, "(null)");
322	else strcat(errmsg,op->name);
323	strcat(errmsg,"\n");
324	#if 0
325	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
326	strcat(errmsg,cp);
327	for (tmp=op->inv; tmp; tmp=tmp->below)
328	dump_object2(tmp);
329	#endif
330	strcat(errmsg,"end\n");
331	}
332	#endif
333	}
334
335	/*
336	* Dumps an object. Returns output in the static global errmsg array.
337	*/
338
339	void dump_object(object *op) {	426	dump_object (object *op)
340	if(op==NULL) {	427	{
341	strcpy(errmsg,"[NULL pointer]");	428	if (!op)
342	return;	429	return strdup ("[NULLOBJ]");
343	}
344	errmsg[0]='\0';
345	dump_object2(op);
346	}
347		430
348	void dump_all_objects(void) {	431	object_freezer freezer;
349	object *op;	432	op->write (freezer);
350	for(op=objects;op!=NULL;op=op->next) {	433	return freezer.as_string ();
351	dump_object(op);
352	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
353	}
354	}	434	}
355		435
356	/*	436	/*
357	* get_nearest_part(multi-object, object 2) returns the part of the	437	* get_nearest_part(multi-object, object 2) returns the part of the
358	* multi-object 1 which is closest to the second object.	438	* multi-object 1 which is closest to the second object.
359	* If it's not a multi-object, it is returned.	439	* If it's not a multi-object, it is returned.
360	*/	440	*/
361		441	object *
362	object *get_nearest_part(object *op, const object *pl) {	442	get_nearest_part (object *op, const object *pl)
		443	{
363	object *tmp,*closest;	444	object *tmp, *closest;
364	int last_dist,i;	445	int last_dist, i;
		446
365	if(op->more==NULL)	447	if (!op->more)
366	return op;	448	return op;
		449
367	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	450	for (last_dist = distance (op, pl), closest = op, tmp = op->more;
		451	tmp;
		452	tmp = tmp->more)
368	if((i=distance(tmp,pl))<last_dist)	453	if ((i = distance (tmp, pl)) < last_dist)
369	closest=tmp,last_dist=i;	454	closest = tmp, last_dist = i;
		455
370	return closest;	456	return closest;
371	}	457	}
372		458
373	/*	459	/*
374	* Returns the object which has the count-variable equal to the argument.	460	* Returns the object which has the count-variable equal to the argument.
		461	* VERRRY slow.
375	*/	462	*/
376		463	object *
377	object *find_object(tag_t i) {	464	find_object (tag_t i)
378	object *op;	465	{
379	for(op=objects;op!=NULL;op=op->next)	466	for_all_objects (op)
380	if(op->count==i)	467	if (op->count == i)
381	break;
382	return op;	468	return op;
		469
		470	return 0;
383	}	471	}
384		472
385	/*	473	/*
386	* Returns the first object which has a name equal to the argument.	474	* Returns the first object which has a name equal to the argument.
387	* Used only by the patch command, but not all that useful.	475	* Used only by the patch command, but not all that useful.
388	* Enables features like "patch <name-of-other-player> food 999"	476	* Enables features like "patch <name-of-other-player> food 999"
389	*/	477	*/
390		478	object *
391	object *find_object_name(const char *str) {	479	find_object_name (const char *str)
392	const char *name = shstr::find (str);	480	{
393	object *op;	481	shstr_cmp str_ (str);
394	for(op=objects;op!=NULL;op=op->next)	482
		483	if (str_)
		484	for_all_objects (op)
395	if(&op->name == name)	485	if (op->name == str_)
396	break;	486	return op;
397		487
398	return op;	488	return 0;
399	}
400
401	void free_all_object_data ()
402	{
403	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
404	}
405
406	/*
407	* Returns the object which this object marks as being the owner.
408	* A id-scheme is used to avoid pointing to objects which have been
409	* freed and are now reused. If this is detected, the owner is
410	* set to NULL, and NULL is returned.
411	* Changed 2004-02-12 - if the player is setting at the play again
412	* prompt, he is removed, and we don't want to treat him as an owner of
413	* anything, so check removed flag. I don't expect that this should break
414	* anything - once an object is removed, it is basically dead anyways.
415	*/
416
417	object *get_owner(object *op) {
418	if(op->owner==NULL)
419	return NULL;
420
421	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
422	op->owner->count==op->ownercount)
423	return op->owner;
424
425	op->owner=NULL;
426	op->ownercount=0;
427	return NULL;
428	}
429
430	void clear_owner(object *op)
431	{
432	if (!op) return;
433
434	if (op->owner && op->ownercount == op->owner->count)
435	op->owner->refcount--;
436
437	op->owner = NULL;
438	op->ownercount = 0;
439	}	489	}
440		490
441	/*	491	/*
442	* Sets the owner and sets the skill and exp pointers to owner's current	492	* Sets the owner and sets the skill and exp pointers to owner's current
443	* skill and experience objects.	493	* skill and experience objects.
		494	* ACTUALLY NO! investigate! TODO
444	*/	495	*/
445	void set_owner (object *op, object *owner)	496	void
		497	object::set_owner (object *owner)
446	{	498	{
447	if(owner==NULL||op==NULL)	499	// allow objects which own objects
		500	if (owner)
		501	while (owner->owner)
		502	owner = owner->owner;
		503
		504	if (flag [FLAG_FREED])
		505	{
		506	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
448	return;	507	return;
		508	}
449		509
450	/* next line added to allow objects which own objects */
451	/* Add a check for ownercounts in here, as I got into an endless loop
452	* with the fireball owning a poison cloud which then owned the
453	* fireball. I believe that was caused by one of the objects getting
454	* freed and then another object replacing it. Since the ownercounts
455	* didn't match, this check is valid and I believe that cause is valid.
456	*/
457	while (owner->owner && owner!=owner->owner &&
458	owner->ownercount==owner->owner->count) owner=owner->owner;
459
460	/* IF the owner still has an owner, we did not resolve to a final owner.
461	* so lets not add to that.
462	*/
463	if (owner->owner) return;
464
465	op->owner=owner;	510	this->owner = owner;
466
467	op->ownercount=owner->count;
468	owner->refcount++;
469
470	}	511	}
471		512
472	/* Set the owner to clone's current owner and set the skill and experience	513	int
473	* objects to clone's objects (typically those objects that where the owner's	514	object::slottype () const
474	* current skill and experience objects at the time when clone's owner was
475	* set - not the owner's current skill and experience objects).
476	*
477	* Use this function if player created an object (e.g. fire bullet, swarm
478	* spell), and this object creates further objects whose kills should be
479	* accounted for the player's original skill, even if player has changed
480	* skills meanwhile.
481	*/
482	void copy_owner (object *op, object *clone)
483	{	515	{
484	object *owner = get_owner (clone);	516	if (type == SKILL)
485	if (owner == NULL) {	517	{
486	/* players don't have owners - they own themselves. Update	518	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
487	* as appropriate.	519	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		520	}
		521	else
		522	{
		523	if (slot [body_combat].info) return slot_combat;
		524	if (slot [body_range ].info) return slot_ranged;
		525	}
		526
		527	return slot_none;
		528	}
		529
		530	bool
		531	object::change_weapon (object *ob)
		532	{
		533	if (current_weapon == ob)
		534	return true;
		535
		536	if (chosen_skill)
		537	chosen_skill->flag [FLAG_APPLIED] = false;
		538
		539	current_weapon = ob;
		540	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		541
		542	if (chosen_skill)
		543	chosen_skill->flag [FLAG_APPLIED] = true;
		544
		545	update_stats ();
		546
		547	if (ob)
		548	{
		549	// now check wether any body locations became invalid, in which case
		550	// we cannot apply the weapon at the moment.
		551	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		552	if (slot[i].used < 0)
488	*/	553	{
489	if (clone->type == PLAYER) owner=clone;	554	current_weapon = chosen_skill = 0;
490	else return;	555	update_stats ();
		556
		557	new_draw_info_format (NDI_UNIQUE, 0, this,
		558	"You try to balance all your items at once, "
		559	"but the %s is just too much for your body. "
		560	"[You need to unapply some items first.]", &ob->name);
		561	return false;
		562	}
		563
		564	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		565	}
		566	else
		567	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		568
		569	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
491	}	570	{
492	set_owner(op, owner);	571	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		572	&name, ob->debug_desc ());
		573	return false;
		574	}
493		575
		576	return true;
494	}	577	}
495		578
496	/* Zero the key_values on op, decrementing the shared-string	579	/* Zero the key_values on op, decrementing the shared-string
497	* refcounts and freeing the links.	580	* refcounts and freeing the links.
498	*/	581	*/
		582	static void
499	static void free_key_values(object * op)	583	free_key_values (object *op)
500	{	584	{
501	for (key_value *i = op->key_values; i != 0; )	585	for (key_value *i = op->key_values; i; )
502	{	586	{
503	key_value *next = i->next;	587	key_value *next = i->next;
504	delete i;	588	delete i;
		589
505	i = next;	590	i = next;
506	}	591	}
507		592
508	op->key_values = 0;	593	op->key_values = 0;
509	}	594	}
510		595
511	void object::clear ()
512	{
513	attachable_base::clear ();
514
515	free_key_values (this);
516
517	name = 0;
518	name_pl = 0;
519	title = 0;
520	race = 0;
521	slaying = 0;
522	skill = 0;
523	msg = 0;
524	lore = 0;
525	custom_name = 0;
526	materialname = 0;
527
528	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
529
530	SET_FLAG (this, FLAG_REMOVED);
531	}
532
533	void object::clone (object *destination)
534	{
535	*(object_copy *)destination = *(object_copy *)this;
536	*(object_pod *)destination = *(object_pod *)this;
537
538	if (self || cb)
539	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
540	}
541
542	/*	596	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object (object *op)
548	{
549	op->clear ();
550
551	op->contr = NULL;
552	op->below = NULL;
553	op->above = NULL;
554	op->inv = NULL;
555	op->container=NULL;
556	op->env=NULL;
557	op->more=NULL;
558	op->head=NULL;
559	op->map=NULL;
560	op->refcount=0;
561	op->active_next = NULL;
562	op->active_prev = NULL;
563	/* What is not cleared is next, prev, and count */
564
565	op->expmul = 1.0;
566	op->face = blank_face;
567	op->attacked_by_count = -1;
568
569	if (settings.casting_time)
570	op->casting_time = -1;
571	}
572
573	/*
574	* copy object first frees everything allocated by the second object,	597	* copy_to first frees everything allocated by the dst object,
575	* and then copies the contends of the first object into the second	598	* and then copies the contents of itself into the second
576	* object, allocating what needs to be allocated. Basically, any	599	* object, allocating what needs to be allocated. Basically, any
577	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	600	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
578	* if the first object is freed, the pointers in the new object	601	* if the first object is freed, the pointers in the new object
579	* will point at garbage.	602	* will point at garbage.
580	*/	603	*/
581		604	void
582	void copy_object (object *op2, object *op)	605	object::copy_to (object *dst)
583	{	606	{
584	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	607	dst->remove ();
585	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	608	*(object_copy *)dst = *this;
586		609	dst->flag [FLAG_REMOVED] = true;
587	op2->clone (op);
588
589	if (is_freed) SET_FLAG (op, FLAG_FREED);
590	if (is_removed) SET_FLAG (op, FLAG_REMOVED);
591
592	if (op2->speed < 0)
593	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;
594		610
595	/* Copy over key_values, if any. */	611	/* Copy over key_values, if any. */
596	if (op2->key_values != NULL)	612	if (key_values)
597	{	613	{
598	key_value *tail = NULL;	614	key_value *tail = 0;
599	key_value *i;
600
601	op->key_values = NULL;	615	dst->key_values = 0;
602		616
603	for (i = op2->key_values; i != NULL; i = i->next)	617	for (key_value *i = key_values; i; i = i->next)
604	{	618	{
605	key_value *new_link = new key_value;	619	key_value *new_link = new key_value;
606		620
607	new_link->next = NULL;	621	new_link->next = 0;
608	new_link->key = i->key;	622	new_link->key = i->key;
609	new_link->value = i->value;	623	new_link->value = i->value;
610		624
611	/* Try and be clever here, too. */	625	/* Try and be clever here, too. */
612	if (op->key_values == NULL)	626	if (!dst->key_values)
613	{	627	{
614	op->key_values = new_link;	628	dst->key_values = new_link;
615	tail = new_link;	629	tail = new_link;
616	}	630	}
617	else	631	else
618	{	632	{
619	tail->next = new_link;	633	tail->next = new_link;
620	tail = new_link;	634	tail = new_link;
621	}	635	}
622	}	636	}
623	}	637	}
624		638
625	update_ob_speed (op);	639	if (speed < 0)
626	}	640	dst->speed_left -= rndm ();
627		641
		642	dst->activate ();
		643	}
		644
		645	void
		646	object::instantiate ()
		647	{
		648	if (!uuid.seq) // HACK
		649	uuid = UUID::gen ();
		650
		651	speed_left = -0.1f;
		652	/* copy the body_info to the body_used - this is only really
		653	* need for monsters, but doesn't hurt to do it for everything.
		654	* by doing so, when a monster is created, it has good starting
		655	* values for the body_used info, so when items are created
		656	* for it, they can be properly equipped.
		657	*/
		658	for (int i = NUM_BODY_LOCATIONS; i--; )
		659	slot[i].used = slot[i].info;
		660
		661	attachable::instantiate ();
		662	}
		663
		664	object *
628	object::object ()	665	object::clone ()
629	{	666	{
630	count = ++ob_count;	667	object *neu = create ();
631		668	copy_to (neu);
632	next = objects;	669	neu->map = map; // not copied by copy_to
633		670	return neu;
634	if (objects)
635	objects->prev = this;
636
637	objects = this;
638
639	SET_FLAG (this, FLAG_REMOVED);
640
641	expmul = 1.0;
642	face = blank_face;
643	attacked_by_count = -1;
644	}
645
646	object::~object ()
647	{
648	}	671	}
649		672
650	/*	673	/*
651	* If an object with the IS_TURNABLE() flag needs to be turned due	674	* If an object with the IS_TURNABLE() flag needs to be turned due
652	* to the closest player being on the other side, this function can	675	* to the closest player being on the other side, this function can
653	* be called to update the face variable, _and_ how it looks on the map.	676	* be called to update the face variable, _and_ how it looks on the map.
654	*/	677	*/
655		678	void
656	void update_turn_face(object *op) {	679	update_turn_face (object *op)
		680	{
657	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	681	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
658	return;	682	return;
		683
659	SET_ANIMATION(op, op->direction);	684	SET_ANIMATION (op, op->direction);
660	update_object(op,UP_OBJ_FACE);	685	update_object (op, UP_OBJ_FACE);
661	}	686	}
662		687
663	/*	688	/*
664	* Updates the speed of an object. If the speed changes from 0 to another	689	* Updates the speed of an object. If the speed changes from 0 to another
665	* value, or vice versa, then add/remove the object from the active list.	690	* value, or vice versa, then add/remove the object from the active list.
666	* This function needs to be called whenever the speed of an object changes.	691	* This function needs to be called whenever the speed of an object changes.
667	*/	692	*/
668		693	void
669	void update_ob_speed(object *op) {	694	object::set_speed (float speed)
670	extern int arch_init;	695	{
671		696	if (flag [FLAG_FREED] && speed)
672	/* No reason putting the archetypes objects on the speed list,	697	{
673	* since they never really need to be updated.
674	*/
675
676	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
677	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	698	LOG (llevError, "Object %s is freed but has speed.\n", &name);
678	#ifdef MANY_CORES
679	abort();
680	#else
681	op->speed = 0;	699	speed = 0;
682	#endif
683	}	700	}
684	if (arch_init) {
685	return;
686	}
687	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
688	/* If already on active list, don't do anything */
689	if (op->active_next || op->active_prev || op==active_objects)
690	return;
691		701
692	/* process_events() expects us to insert the object at the beginning	702	this->speed = speed;
693	* of the list. */	703
694	op->active_next = active_objects;	704	if (has_active_speed ())
695	if (op->active_next!=NULL)	705	activate ();
696	op->active_next->active_prev = op;
697	active_objects = op;
698	}
699	else {	706	else
700	/* If not on the active list, nothing needs to be done */	707	deactivate ();
701	if (!op->active_next && !op->active_prev && op!=active_objects)
702	return;
703
704	if (op->active_prev==NULL) {
705	active_objects = op->active_next;
706	if (op->active_next!=NULL)
707	op->active_next->active_prev = NULL;
708	}
709	else {
710	op->active_prev->active_next = op->active_next;
711	if (op->active_next)
712	op->active_next->active_prev = op->active_prev;
713	}
714	op->active_next = NULL;
715	op->active_prev = NULL;
716	}
717	}	708	}
718		709
719	/* This function removes object 'op' from the list of active
720	* objects.
721	* This should only be used for style maps or other such
722	* reference maps where you don't want an object that isn't
723	* in play chewing up cpu time getting processed.
724	* The reverse of this is to call update_ob_speed, which
725	* will do the right thing based on the speed of the object.
726	*/
727	void remove_from_active_list(object *op)
728	{
729	/* If not on the active list, nothing needs to be done */
730	if (!op->active_next && !op->active_prev && op!=active_objects)
731	return;
732
733	if (op->active_prev==NULL) {
734	active_objects = op->active_next;
735	if (op->active_next!=NULL)
736	op->active_next->active_prev = NULL;
737	}
738	else {
739	op->active_prev->active_next = op->active_next;
740	if (op->active_next)
741	op->active_next->active_prev = op->active_prev;
742	}
743	op->active_next = NULL;
744	op->active_prev = NULL;
745	}
746
747	/*	710	/*
748	* update_object() updates the array which represents the map.	711	* update_object() updates the the map.
749	* It takes into account invisible objects (and represent squares covered	712	* It takes into account invisible objects (and represent squares covered
750	* by invisible objects by whatever is below them (unless it's another	713	* by invisible objects by whatever is below them (unless it's another
751	* invisible object, etc...)	714	* invisible object, etc...)
752	* If the object being updated is beneath a player, the look-window	715	* If the object being updated is beneath a player, the look-window
753	* of that player is updated (this might be a suboptimal way of	716	* of that player is updated (this might be a suboptimal way of
754	* updating that window, though, since update_object() is called _often_)	717	* updating that window, though, since update_object() is called _often_)
755	*	718	*
756	* action is a hint of what the caller believes need to be done.	719	* action is a hint of what the caller believes need to be done.
757	* For example, if the only thing that has changed is the face (due to
758	* an animation), we don't need to call update_position until that actually
759	* comes into view of a player. OTOH, many other things, like addition/removal
760	* of walls or living creatures may need us to update the flags now.
761	* current action are:	720	* current action are:
762	* UP_OBJ_INSERT: op was inserted	721	* UP_OBJ_INSERT: op was inserted
763	* UP_OBJ_REMOVE: op was removed	722	* UP_OBJ_REMOVE: op was removed
764	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	723	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
765	* as that is easier than trying to look at what may have changed.	724	* as that is easier than trying to look at what may have changed.
766	* UP_OBJ_FACE: only the objects face has changed.	725	* UP_OBJ_FACE: only the objects face has changed.
767	*/	726	*/
768		727	void
769	void update_object(object *op, int action) {	728	update_object (object *op, int action)
770	int update_now=0, flags;	729	{
771	MoveType move_on, move_off, move_block, move_slow;	730	if (!op)
772		731	{
773	if (op == NULL) {
774	/* this should never happen */	732	/* this should never happen */
775	LOG(llevDebug,"update_object() called for NULL object.\n");	733	LOG (llevError | logBacktrace, "update_object() called for NULL object.\n");
776	return;	734	return;
777	}
778		735	}
779	if(op->env!=NULL) {	736
		737	if (!op->is_on_map ())
		738	{
780	/* Animation is currently handled by client, so nothing	739	/* Animation is currently handled by client, so nothing
781	* to do in this case.	740	* to do in this case.
782	*/	741	*/
783	return;	742	return;
784	}
785
786	/* If the map is saving, don't do anything as everything is
787	* going to get freed anyways.
788	*/
789	if (!op->map || op->map->in_memory == MAP_SAVING) return;
790		743	}
		744
791	/* make sure the object is within map boundaries */	745	/* make sure the object is within map boundaries */
792	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	746	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
793	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	747	{
794	LOG(llevError,"update_object() called for object out of map!\n");	748	LOG (llevError, "update_object() called for object out of map!\n");
795	#ifdef MANY_CORES	749	#ifdef MANY_CORES
796	abort();	750	abort ();
797	#endif	751	#endif
798	return;	752	return;
799	}
800		753	}
801	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
802	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
803	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
804	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
805	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
806	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
807		754
		755	mapspace &m = op->ms ();
		756
		757	if (!(m.flags_ & P_UPTODATE))
		758	/* nop */;
808	if (action == UP_OBJ_INSERT) {	759	else if (action == UP_OBJ_INSERT)
		760	{
		761	// this is likely overkill, TODO: revisit (schmorp)
809	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	762	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
810	update_now=1;
811
812	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	763	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
813	update_now=1;	764	|| (op->is_player () && !(m.flags_ & P_PLAYER))
814		765	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		766	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
815	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	767	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
816	update_now=1;	768	|| (m.move_on | op->move_on ) != m.move_on
817
818	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
819	update_now=1;
820
821	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
822	update_now=1;
823
824	if ((move_on | op->move_on) != move_on) update_now=1;
825
826	if ((move_off | op->move_off) != move_off) update_now=1;	769	|| (m.move_off | op->move_off ) != m.move_off
827		770	|| (m.move_slow | op->move_slow) != m.move_slow
828	/* This isn't perfect, but I don't expect a lot of objects to	771	/* This isn't perfect, but I don't expect a lot of objects to
829	* to have move_allow right now.	772	* have move_allow right now.
830	*/	773	*/
831	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	774	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
832	update_now=1;	775	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
833		776	m.invalidate ();
834	if ((move_slow | op->move_slow) != move_slow)
835	update_now=1;
836	}	777	}
837	/* if the object is being removed, we can't make intelligent	778	/* if the object is being removed, we can't make intelligent
838	* decisions, because remove_ob can't really pass the object	779	* decisions, because remove_ob can't really pass the object
839	* that is being removed.	780	* that is being removed.
840	*/	781	*/
841	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	782	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
842	update_now=1;	783	m.invalidate ();
843	} else if (action == UP_OBJ_FACE) {	784	else if (action == UP_OBJ_FACE)
844	/* Nothing to do for that case */	785	/* Nothing to do for that case */ ;
845	}
846	else {	786	else
847	LOG(llevError,"update_object called with invalid action: %d\n", action);	787	LOG (llevError, "update_object called with invalid action: %d\n", action);
848	}
849		788
850	if (update_now) {
851	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
852	update_position(op->map, op->x, op->y);
853	}
854
855	if(op->more!=NULL)	789	if (op->more)
856	update_object(op->more, action);	790	update_object (op->more, action);
857	}	791	}
858		792
		793	object::object ()
		794	{
		795	SET_FLAG (this, FLAG_REMOVED);
859		796
860	/*	797	expmul = 1.0;
861	* free_object() frees everything allocated by an object, removes	798	face = blank_face;
862	* it from the list of used objects, and puts it on the list of	799	}
863	* free objects. The IS_FREED() flag is set in the object.	800
864	* The object must have been removed by remove_ob() first for	801	object::~object ()
865	* this function to succeed.	802	{
		803	unlink ();
		804
		805	free_key_values (this);
		806	}
		807
		808	static int object_count;
		809
		810	void object::link ()
		811	{
		812	assert (!index);//D
		813	uuid = UUID::gen ();
		814	count = ++object_count;
		815
		816	refcnt_inc ();
		817	objects.insert (this);
		818	}
		819
		820	void object::unlink ()
		821	{
		822	if (!index)
		823	return;
		824
		825	objects.erase (this);
		826	refcnt_dec ();
		827	}
		828
		829	void
		830	object::activate ()
		831	{
		832	/* If already on active list, don't do anything */
		833	if (active)
		834	return;
		835
		836	if (has_active_speed () && flag [FLAG_FREED]) LOG (llevError | logBacktrace, "BUG: tried to activate freed object %s\n", debug_desc ());//D
		837	if (has_active_speed () && flag [FLAG_DEBUG]) LOG (llevError | logBacktrace, "BUG: tried to activate DEBUG object %s\n", debug_desc ());//D temp
		838
		839	if (has_active_speed ())
		840	actives.insert (this);
		841	}
		842
		843	void
		844	object::activate_recursive ()
		845	{
		846	activate ();
		847
		848	for (object *op = inv; op; op = op->below)
		849	op->activate_recursive ();
		850	}
		851
		852	/* This function removes object 'op' from the list of active
		853	* objects.
		854	* This should only be used for style maps or other such
		855	* reference maps where you don't want an object that isn't
		856	* in play chewing up cpu time getting processed.
		857	* The reverse of this is to call update_ob_speed, which
		858	* will do the right thing based on the speed of the object.
866	*	859	*/
867	* If free_inventory is set, free inventory as well. Else drop items in
868	* inventory to the ground.
869	*/
870
871	void	860	void
872	free_object (object * ob)	861	object::deactivate ()
873	{	862	{
874	free_object2 (ob, 0);	863	/* If not on the active list, nothing needs to be done */
875	}	864	if (!active)
		865	return;
876		866
877	void	867	actives.erase (this);
878	free_object2 (object * ob, int free_inventory)	868	}
879	{
880	object *tmp, *op;
881		869
882	if (!QUERY_FLAG (ob, FLAG_REMOVED))	870	void
883	{	871	object::deactivate_recursive ()
884	LOG (llevDebug, "Free object called with non removed object\n");	872	{
885	dump_object (ob);	873	for (object *op = inv; op; op = op->below)
886	#ifdef MANY_CORES	874	op->deactivate_recursive ();
887	abort ();	875
888	#endif	876	deactivate ();
		877	}
		878
		879	void
		880	object::set_flag_inv (int flag, int value)
		881	{
		882	for (object *op = inv; op; op = op->below)
889	}	883	{
890		884	op->flag [flag] = value;
891	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	885	op->set_flag_inv (flag, value);
892	{	886	}
893	LOG (llevMonster, "Warning: tried to free friendly object.\n");	887	}
		888
		889	/*
		890	* Remove and free all objects in the inventory of the given object.
		891	* object.c ?
		892	*/
		893	void
		894	object::destroy_inv (bool drop_to_ground)
		895	{
		896	// need to check first, because the checks below might segfault
		897	// as we might be on an invalid mapspace and crossfire code
		898	// is too buggy to ensure that the inventory is empty.
		899	// corollary: if you create arrows etc. with stuff in its inventory,
		900	// cf will crash below with off-map x and y
		901	if (!inv)
		902	return;
		903
		904	/* Only if the space blocks everything do we not process -
		905	* if some form of movement is allowed, let objects
		906	* drop on that space.
		907	*/
		908	if (!drop_to_ground
		909	|| !map
		910	|| map->in_memory != MAP_ACTIVE
		911	|| map->no_drop
		912	|| ms ().move_block == MOVE_ALL)
		913	{
		914	while (inv)
		915	inv->destroy ();
		916	}
		917	else
		918	{ /* Put objects in inventory onto this space */
		919	while (inv)
		920	{
		921	object *op = inv;
		922
		923	if (op->flag [FLAG_STARTEQUIP]
		924	|| op->flag [FLAG_NO_DROP]
		925	|| op->type == RUNE
		926	|| op->type == TRAP
		927	|| op->flag [FLAG_IS_A_TEMPLATE]
		928	|| op->flag [FLAG_DESTROY_ON_DEATH])
		929	op->destroy ();
		930	else
		931	map->insert (op, x, y);
		932	}
		933	}
		934	}
		935
		936	object *object::create ()
		937	{
		938	object *op = new object;
		939	op->link ();
		940	return op;
		941	}
		942
		943	static struct freed_map : maptile
		944	{
		945	freed_map ()
		946	{
		947	path = "<freed objects map>";
		948	name = "/internal/freed_objects_map";
		949	width = 3;
		950	height = 3;
		951	no_drop = 1;
		952	no_reset = 1;
		953
		954	alloc ();
		955	in_memory = MAP_ACTIVE;
		956	}
		957
		958	~freed_map ()
		959	{
		960	destroy ();
		961	}
		962	} freed_map; // freed objects are moved here to avoid crashes
		963
		964	void
		965	object::do_destroy ()
		966	{
		967	if (flag [FLAG_IS_LINKED])
		968	remove_link ();
		969
		970	if (flag [FLAG_FRIENDLY])
894	remove_friendly_object (ob);	971	remove_friendly_object (this);
		972
		973	remove ();
		974
		975	attachable::do_destroy ();
		976
		977	deactivate ();
		978	unlink ();
		979
		980	flag [FLAG_FREED] = 1;
		981
		982	// hack to ensure that freed objects still have a valid map
		983	map = &freed_map;
		984	x = 1;
		985	y = 1;
		986
		987	if (more)
895	}	988	{
896		989	more->destroy ();
897	if (QUERY_FLAG (ob, FLAG_FREED))	990	more = 0;
898	{	991	}
899	dump_object (ob);	992
900	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	993	head = 0;
		994
		995	// clear those pointers that likely might cause circular references
		996	owner = 0;
		997	enemy = 0;
		998	attacked_by = 0;
		999	current_weapon = 0;
		1000	}
		1001
		1002	void
		1003	object::destroy ()
		1004	{
		1005	if (destroyed ())
		1006	return;
		1007
		1008	if (!is_head () && !head->destroyed ())
		1009	{
		1010	LOG (llevError | logBacktrace, "tried to destroy the tail of an object");
		1011	head->destroy ();
901	return;	1012	return;
902	}	1013	}
903		1014
904	if (ob->more != NULL)	1015	destroy_inv (false);
905	{
906	free_object2 (ob->more, free_inventory);
907	ob->more = NULL;
908	}
909		1016
910	if (ob->inv)	1017	if (is_head ())
911	{	1018	if (sound_destroy)
912	/* Only if the space blocks everything do we not process -	1019	play_sound (sound_destroy);
913	* if some form of movement is allowed, let objects	1020	else if (flag [FLAG_MONSTER])
914	* drop on that space.	1021	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
915	*/
916	if (free_inventory || ob->map == NULL
917	|| ob->map->in_memory != MAP_IN_MEMORY
918	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))
919	{
920	op = ob->inv;
921		1022
922	while (op != NULL)	1023	attachable::destroy ();
923	{
924	tmp = op->below;
925	remove_ob (op);
926	free_object2 (op, free_inventory);
927	op = tmp;
928	}
929	}
930	else
931	{ /* Put objects in inventory onto this space */
932	op = ob->inv;
933
934	while (op != NULL)
935	{
936	tmp = op->below;
937	remove_ob (op);
938
939	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
940	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE
941	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
942	free_object (op);
943	else
944	{
945	op->x = ob->x;
946	op->y = ob->y;
947	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */
948	}
949
950	op = tmp;
951	}
952	}
953	}
954
955	/* Remove object from the active list */
956	ob->speed = 0;
957	update_ob_speed (ob);
958
959	SET_FLAG (ob, FLAG_FREED);
960	ob->count = 0;
961
962	/* Remove this object from the list of used objects */
963	if (ob->prev == NULL)
964	{
965	objects = ob->next;
966
967	if (objects != NULL)
968	objects->prev = NULL;
969	}
970	else
971	{
972	ob->prev->next = ob->next;
973
974	if (ob->next != NULL)
975	ob->next->prev = ob->prev;
976	}
977
978	free_key_values (ob);
979
980	/* Now link it with the free_objects list: */
981	ob->prev = 0;
982	ob->next = 0;
983
984	delete ob;
985	}	1024	}
986		1025
987	/*	1026	/* op->remove ():
988	* sub_weight() recursively (outwards) subtracts a number from the
989	* weight of an object (and what is carried by it's environment(s)).
990	*/
991
992	void sub_weight (object *op, signed long weight) {
993	while (op != NULL) {
994	if (op->type == CONTAINER) {
995	weight=(signed long)(weight*(100-op->stats.Str)/100);
996	}
997	op->carrying-=weight;
998	op = op->env;
999	}
1000	}
1001
1002	/* remove_ob(op):
1003	* This function removes the object op from the linked list of objects	1027	* This function removes the object op from the linked list of objects
1004	* which it is currently tied to. When this function is done, the	1028	* which it is currently tied to. When this function is done, the
1005	* object will have no environment. If the object previously had an	1029	* object will have no environment. If the object previously had an
1006	* environment, the x and y coordinates will be updated to	1030	* environment, the x and y coordinates will be updated to
1007	* the previous environment.	1031	* the previous environment.
1008	* Beware: This function is called from the editor as well!
1009	*/	1032	*/
1010		1033	void
1011	void remove_ob(object *op) {	1034	object::do_remove ()
		1035	{
1012	object *tmp,*last=NULL;	1036	object *tmp, *last = 0;
1013	object *otmp;	1037	object *otmp;
1014	tag_t tag;
1015	int check_walk_off;
1016	mapstruct *m;
1017	sint16 x,y;
1018
1019		1038
1020	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1039	if (flag [FLAG_REMOVED])
1021	dump_object(op);	1040	return;
1022	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1023		1041
1024	/* Changed it to always dump core in this case. As has been learned	1042	INVOKE_OBJECT (REMOVE, this);
1025	* in the past, trying to recover from errors almost always
1026	* make things worse, and this is a real error here - something
1027	* that should not happen.
1028	* Yes, if this was a mission critical app, trying to do something
1029	* to recover may make sense, but that is because failure of the app
1030	* may have other disastrous problems. Cf runs out of a script
1031	* so is easily enough restarted without any real problems.
1032	* MSW 2001-07-01
1033	*/
1034	abort();
1035	}
1036	if(op->more!=NULL)
1037	remove_ob(op->more);
1038		1043
1039	SET_FLAG(op, FLAG_REMOVED);	1044	flag [FLAG_REMOVED] = true;
1040		1045
		1046	if (more)
		1047	more->remove ();
		1048
1041	/*	1049	/*
1042	* In this case, the object to be removed is in someones	1050	* In this case, the object to be removed is in someones
1043	* inventory.	1051	* inventory.
		1052	*/
		1053	if (env)
		1054	{
		1055	flag [FLAG_REMOVED] = false; // hack around the issue of visible_to checking flag_removed
		1056	if (object *pl = visible_to ())
		1057	esrv_del_item (pl->contr, count);
		1058	flag [FLAG_REMOVED] = true; // hack around the issue of visible_to checking flag_removed
		1059
		1060	adjust_weight (env, -total_weight ());
		1061
		1062	object *pl = in_player ();
		1063
		1064	/* we set up values so that it could be inserted into
		1065	* the map, but we don't actually do that - it is up
		1066	* to the caller to decide what we want to do.
1044	*/	1067	*/
1045	if(op->env!=NULL) {	1068	map = env->map;
1046	if(op->nrof)	1069	x = env->x;
1047	sub_weight(op->env, op->weight*op->nrof);	1070	y = env->y;
1048	else
1049	sub_weight(op->env, op->weight+op->carrying);
1050		1071
		1072	// make sure cmov optimisation is applicable
		1073	*(above ? &above->below : &env->inv) = below;
		1074	*(below ? &below->above : &above ) = above; // &above is just a dummy
		1075
		1076	above = 0;
		1077	below = 0;
		1078	env = 0;
		1079
1051	/* NO_FIX_PLAYER is set when a great many changes are being	1080	/* NO_FIX_PLAYER is set when a great many changes are being
1052	* made to players inventory. If set, avoiding the call	1081	* made to players inventory. If set, avoiding the call
1053	* to save cpu time.	1082	* to save cpu time.
1054	*/	1083	*/
1055	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1084	if (pl)
1056	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1085	if (pl->is_player () && (glow_radius || !QUERY_FLAG (pl, FLAG_NO_FIX_PLAYER)))
1057	fix_player(otmp);
1058
1059	if(op->above!=NULL)
1060	op->above->below=op->below;
1061	else
1062	op->env->inv=op->below;
1063
1064	if(op->below!=NULL)
1065	op->below->above=op->above;
1066
1067	/* we set up values so that it could be inserted into
1068	* the map, but we don't actually do that - it is up
1069	* to the caller to decide what we want to do.
1070	*/	1086	{
1071	op->x=op->env->x,op->y=op->env->y;	1087	pl->update_stats ();
1072	op->map=op->env->map;	1088
1073	op->above=NULL,op->below=NULL;	1089	if (glow_radius && pl->is_on_map ())
1074	op->env=NULL;	1090	update_all_los (pl->map, pl->x, pl->y);
		1091	}
		1092	}
		1093	else if (map)
		1094	{
		1095	map->dirty = true;
		1096	mapspace &ms = this->ms ();
		1097
		1098	if (object *pl = ms.player ())
		1099	{
		1100	if (is_player ())
		1101	{
		1102	if (!flag [FLAG_WIZPASS])
		1103	ms.smell = ++mapspace::smellcount; // remember the smell of the player
		1104
		1105	// leaving a spot always closes any open container on the ground
		1106	if (container && !container->env)
		1107	// this causes spurious floorbox updates, but it ensures
		1108	// that the CLOSE event is being sent.
		1109	close_container ();
		1110
		1111	--map->players;
		1112	map->touch ();
		1113	}
		1114	else if (pl->container == this)
		1115	{
		1116	// removing a container should close it
		1117	close_container ();
		1118	}
		1119
		1120	esrv_del_item (pl->contr, count);
		1121	}
		1122
		1123	/* link the object above us */
		1124	// re-link, make sure compiler can easily use cmove
		1125	*(above ? &above->below : &ms.top) = below;
		1126	*(below ? &below->above : &ms.bot) = above;
		1127
		1128	above = 0;
		1129	below = 0;
		1130
		1131	ms.invalidate ();
		1132
		1133	if (map->in_memory == MAP_SAVING)
1075	return;	1134	return;
1076	}
1077		1135
1078	/* If we get here, we are removing it from a map */	1136	int check_walk_off = !flag [FLAG_NO_APPLY];
1079	if (op->map == NULL) return;
1080		1137
1081	x = op->x;	1138	if (object *pl = ms.player ())
1082	y = op->y;
1083	m = get_map_from_coord(op->map, &x, &y);
1084
1085	if (!m) {
1086	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1087	op->map->path, op->x, op->y);
1088	/* in old days, we used to set x and y to 0 and continue.
1089	* it seems if we get into this case, something is probablye
1090	* screwed up and should be fixed.
1091	*/
1092	abort();
1093	}
1094	if (op->map != m) {
1095	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1096	op->map->path, m->path, op->x, op->y, x, y);
1097	}
1098
1099	/* Re did the following section of code - it looks like it had
1100	* lots of logic for things we no longer care about
1101	*/
1102
1103	/* link the object above us */
1104	if (op->above)
1105	op->above->below=op->below;
1106	else
1107	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1108
1109	/* Relink the object below us, if there is one */
1110	if(op->below) {
1111	op->below->above=op->above;
1112	} else {
1113	/* Nothing below, which means we need to relink map object for this space
1114	* use translated coordinates in case some oddness with map tiling is
1115	* evident
1116	*/
1117	if(GET_MAP_OB(m,x,y)!=op) {
1118	dump_object(op);
1119	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);
1120	dump_object(GET_MAP_OB(m,x,y));
1121	LOG(llevError,"%s\n",errmsg);
1122	}	1139	{
1123	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */	1140	if (pl->container == this)
1124	}
1125	op->above=NULL;
1126	op->below=NULL;
1127
1128	if (op->map->in_memory == MAP_SAVING)
1129	return;
1130
1131	tag = op->count;
1132	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1133	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1134	/* No point updating the players look faces if he is the object
1135	* being removed.
1136	*/
1137
1138	if(tmp->type==PLAYER && tmp!=op) {
1139	/* If a container that the player is currently using somehow gets	1141	/* If a container that the player is currently using somehow gets
1140	* removed (most likely destroyed), update the player view	1142	* removed (most likely destroyed), update the player view
1141	* appropriately.	1143	* appropriately.
1142	*/	1144	*/
1143	if (tmp->container==op) {	1145	pl->close_container ();
1144	CLEAR_FLAG(op, FLAG_APPLIED);	1146
1145	tmp->container=NULL;	1147	//TODO: the floorbox prev/next might need updating
		1148	//esrv_del_item (pl->contr, count);
		1149	//TODO: update floorbox to preserve ordering
		1150	if (pl->contr->ns)
		1151	pl->contr->ns->floorbox_update ();
		1152	}
		1153
		1154	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1155	{
		1156	/* No point updating the players look faces if he is the object
		1157	* being removed.
		1158	*/
		1159
		1160	/* See if object moving off should effect something */
		1161	if (check_walk_off
		1162	&& ((move_type & tmp->move_off)
		1163	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1164	{
		1165	move_apply (tmp, this, 0);
		1166
		1167	if (destroyed ())
		1168	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1146	}	1169	}
1147	tmp->contr->socket.update_look=1;	1170
		1171	last = tmp;
1148	}	1172	}
1149	/* See if player moving off should effect something */
1150	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1151	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1152		1173
1153	move_apply(tmp, op, NULL);	1174	if (affects_los ())
1154	if (was_destroyed (op, tag)) {
1155	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1156	"leaving object\n", &tmp->name, &tmp->arch->name);
1157	}
1158	}
1159
1160	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1161
1162	if(tmp->above == tmp)
1163	tmp->above = NULL;
1164	last=tmp;
1165	}
1166	/* last == NULL of there are no objects on this space */
1167	if (last==NULL) {
1168	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1169	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1170	* those out anyways, and if there are any flags set right now, they won't
1171	* be correct anyways.
1172	*/
1173	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1174	update_position(op->map, op->x, op->y);
1175	}
1176	else
1177	update_object(last, UP_OBJ_REMOVE);
1178
1179	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))
1180	update_all_los(op->map, op->x, op->y);	1175	update_all_los (map, x, y);
1181		1176	}
1182	}	1177	}
1183		1178
1184	/*	1179	/*
1185	* merge_ob(op,top):	1180	* merge_ob(op,top):
1186	*	1181	*
1187	* This function goes through all objects below and including top, and	1182	* This function goes through all objects below and including top, and
1188	* merges op to the first matching object.	1183	* merges op to the first matching object.
1189	* If top is NULL, it is calculated.	1184	* If top is NULL, it is calculated.
1190	* Returns pointer to object if it succeded in the merge, otherwise NULL	1185	* Returns pointer to object if it succeded in the merge, otherwise NULL
1191	*/	1186	*/
1192		1187	object *
1193	object *merge_ob(object *op, object *top) {	1188	merge_ob (object *op, object *top)
		1189	{
1194	if(!op->nrof)	1190	if (!op->nrof)
1195	return 0;	1191	return 0;
1196	if(top==NULL)	1192
		1193	if (!top)
1197	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1194	for (top = op; top && top->above; top = top->above)
		1195	;
		1196
1198	for(;top!=NULL;top=top->below) {	1197	for (; top; top = top->below)
1199	if(top==op)	1198	if (object::can_merge (op, top))
1200	continue;
1201	if (CAN_MERGE(op,top))
1202	{	1199	{
1203	top->nrof+=op->nrof;	1200	top->nrof += op->nrof;
1204	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1201
1205	op->weight = 0; /* Don't want any adjustements now */	1202	if (object *pl = top->visible_to ())
1206	remove_ob(op);	1203	esrv_update_item (UPD_NROF, pl, top);
1207	free_object(op);	1204
		1205	op->weight = 0; // cancel the addition above
		1206	op->carrying = 0; // must be 0 already
		1207
		1208	op->destroy ();
		1209
1208	return top;	1210	return top;
1209	}	1211	}
1210	}	1212
1211	return NULL;	1213	return 0;
1212	}	1214	}
1213		1215
		1216	void
		1217	object::expand_tail ()
		1218	{
		1219	if (more)
		1220	return;
		1221
		1222	object *prev = this;
		1223
		1224	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1225	{
		1226	object *op = arch_to_object (at);
		1227
		1228	op->name = name;
		1229	op->name_pl = name_pl;
		1230	op->title = title;
		1231
		1232	op->head = this;
		1233	prev->more = op;
		1234
		1235	prev = op;
		1236	}
		1237	}
		1238
1214	/*	1239	/*
1215	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1240	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1216	* job preparing multi-part monsters	1241	* job preparing multi-part monsters.
1217	*/	1242	*/
		1243	object *
1218	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1244	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1219	object* tmp;	1245	{
1220	if (op->head)	1246	op->remove ();
1221	op=op->head;	1247
1222	for (tmp=op;tmp;tmp=tmp->more){	1248	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
		1249	{
1223	tmp->x=x+tmp->arch->clone.x;	1250	tmp->x = x + tmp->arch->x;
1224	tmp->y=y+tmp->arch->clone.y;	1251	tmp->y = y + tmp->arch->y;
1225	}	1252	}
		1253
1226	return insert_ob_in_map (op, m, originator, flag);	1254	return insert_ob_in_map (op, m, originator, flag);
1227	}	1255	}
1228		1256
1229	/*	1257	/*
1230	* insert_ob_in_map (op, map, originator, flag):	1258	* insert_ob_in_map (op, map, originator, flag):
1231	* This function inserts the object in the two-way linked list	1259	* This function inserts the object in the two-way linked list
…		…
1244	* Return value:	1272	* Return value:
1245	* new object if 'op' was merged with other object	1273	* new object if 'op' was merged with other object
1246	* NULL if 'op' was destroyed	1274	* NULL if 'op' was destroyed
1247	* just 'op' otherwise	1275	* just 'op' otherwise
1248	*/	1276	*/
1249		1277	object *
1250	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1278	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1251	{	1279	{
1252	object *tmp, *top, *floor=NULL;	1280	op->remove ();
1253	sint16 x,y;
1254		1281
1255	if (QUERY_FLAG (op, FLAG_FREED)) {	1282	if (m == &freed_map)//D TODO: remove soon
1256	LOG (llevError, "Trying to insert freed object!\n");	1283	{//D
1257	return NULL;	1284	LOG (llevError | logBacktrace, "tries to insret object on freed objects map: %s", op->debug_desc ());//D
		1285	}//D
		1286
		1287	/* Ideally, the caller figures this out. However, it complicates a lot
		1288	* of areas of callers (eg, anything that uses find_free_spot would now
		1289	* need extra work
		1290	*/
		1291	maptile *newmap = m;
		1292	if (!xy_normalise (newmap, op->x, op->y))
1258	}	1293	{
1259	if(m==NULL) {	1294	op->head_ ()->destroy ();// remove head_ once all tail object destroyers found
1260	dump_object(op);
1261	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1262	return op;	1295	return 0;
1263	}	1296	}
1264	if(out_of_map(m,op->x,op->y)) {	1297
1265	dump_object(op);	1298	if (object *more = op->more)
1266	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1299	if (!insert_ob_in_map (more, m, originator, flag))
1267	#ifdef MANY_CORES
1268	/* Better to catch this here, as otherwise the next use of this object
1269	* is likely to cause a crash. Better to find out where it is getting
1270	* improperly inserted.
1271	*/
1272	abort();
1273	#endif
1274	return op;	1300	return 0;
1275	}
1276	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1277	dump_object(op);
1278	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1279	return op;
1280	}
1281	if(op->more!=NULL) {
1282	/* The part may be on a different map. */
1283		1301
1284	object *more = op->more;	1302	CLEAR_FLAG (op, FLAG_REMOVED);
1285		1303
1286	/* We really need the caller to normalize coordinates - if	1304	op->map = newmap;
1287	* we set the map, that doesn't work if the location is within	1305	mapspace &ms = op->ms ();
1288	* a map and this is straddling an edge. So only if coordinate	1306
1289	* is clear wrong do we normalize it.	1307	/* this has to be done after we translate the coordinates.
		1308	*/
		1309	if (op->nrof && !(flag & INS_NO_MERGE))
		1310	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		1311	if (object::can_merge (op, tmp))
1290	*/	1312	{
1291	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1313	// TODO: we actually want to update tmp, not op,
1292	more->map = get_map_from_coord(m, &more->x, &more->y);	1314	// but some caller surely breaks when we return tmp
1293	} else if (!more->map) {	1315	// from here :/
1294	/* For backwards compatibility - when not dealing with tiled maps,	1316	op->nrof += tmp->nrof;
1295	* more->map should always point to the parent.	1317	tmp->destroy ();
1296	*/
1297	more->map = m;
1298	}	1318	}
1299		1319
1300	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1320	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1301	if ( ! op->head)	1321	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1302	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1322
1303	return NULL;	1323	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1324	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1325
		1326	if (flag & INS_BELOW_ORIGINATOR)
		1327	{
		1328	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1329	{
		1330	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1331	abort ();
1304	}	1332	}
		1333
		1334	if (!originator->is_on_map ())
		1335	LOG (llevDebug | logBacktrace, "insert_ob_in_map(%s) called with INS_BELOW_ORIGINATOR when originator '%s' not on map",
		1336	op->debug_desc (), originator->debug_desc ());
		1337
		1338	op->above = originator;
		1339	op->below = originator->below;
		1340	originator->below = op;
		1341
		1342	*(op->below ? &op->below->above : &ms.bot) = op;
		1343	}
		1344	else
1305	}	1345	{
1306	CLEAR_FLAG(op,FLAG_REMOVED);	1346	object *floor = 0;
		1347	object *top = ms.top;
1307		1348
1308	/* Ideally, the caller figures this out. However, it complicates a lot	1349	/* If there are other objects, then */
1309	* of areas of callers (eg, anything that uses find_free_spot would now	1350	if (top)
1310	* need extra work	1351	{
1311	*/	1352	/*
1312	op->map=get_map_from_coord(m, &op->x, &op->y);	1353	* If there are multiple objects on this space, we do some trickier handling.
1313	x = op->x;	1354	* We've already dealt with merging if appropriate.
1314	y = op->y;	1355	* Generally, we want to put the new object on top. But if
		1356	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1357	* floor, we want to insert above that and no further.
		1358	* Also, if there are spell objects on this space, we stop processing
		1359	* once we get to them. This reduces the need to traverse over all of
		1360	* them when adding another one - this saves quite a bit of cpu time
		1361	* when lots of spells are cast in one area. Currently, it is presumed
		1362	* that flying non pickable objects are spell objects.
		1363	*/
		1364	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		1365	{
		1366	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR) || QUERY_FLAG (tmp, FLAG_OVERLAY_FLOOR))
		1367	floor = tmp;
1315		1368
1316	/* this has to be done after we translate the coordinates.	1369	if (QUERY_FLAG (tmp, FLAG_NO_PICK) && (tmp->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (tmp, FLAG_IS_FLOOR))
1317	*/	1370	{
1318	if(op->nrof && !(flag & INS_NO_MERGE)) {	1371	/* We insert above top, so we want this object below this */
1319	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1372	top = tmp->below;
1320	if (CAN_MERGE(op,tmp)) {	1373	break;
1321	op->nrof+=tmp->nrof;	1374	}
1322	remove_ob(tmp);	1375
1323	free_object(tmp);	1376	top = tmp;
1324	}	1377	}
1325	}
1326		1378
1327	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1379	/* We let update_position deal with figuring out what the space
1328	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1380	* looks like instead of lots of conditions here.
1329	if (!QUERY_FLAG(op, FLAG_ALIVE))	1381	* makes things faster, and effectively the same result.
1330	CLEAR_FLAG(op, FLAG_NO_STEAL);	1382	*/
1331		1383
1332	if (flag & INS_BELOW_ORIGINATOR) {	1384	/* Have object 'fall below' other objects that block view.
1333	if (originator->map != op->map || originator->x != op->x ||	1385	* Unless those objects are exits.
1334	originator->y != op->y) {	1386	* If INS_ON_TOP is used, don't do this processing
1335	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1387	* Need to find the object that in fact blocks view, otherwise
1336	abort();	1388	* stacking is a bit odd.
		1389	*/
		1390	if (!(flag & INS_ON_TOP)
		1391	&& ms.flags () & P_BLOCKSVIEW
		1392	&& (op->face && !faces [op->face].visibility))
		1393	{
		1394	object *last;
		1395
		1396	for (last = top; last != floor; last = last->below)
		1397	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1398	break;
		1399
		1400	/* Check to see if we found the object that blocks view,
		1401	* and make sure we have a below pointer for it so that
		1402	* we can get inserted below this one, which requires we
		1403	* set top to the object below us.
		1404	*/
		1405	if (last && last->below && last != floor)
		1406	top = last->below;
		1407	}
		1408	} /* If objects on this space */
		1409
		1410	if (flag & INS_ABOVE_FLOOR_ONLY)
		1411	top = floor;
		1412
		1413	// insert object above top, or bottom-most if top = 0
		1414	if (!top)
		1415	{
		1416	op->below = 0;
		1417	op->above = ms.bot;
		1418	ms.bot = op;
		1419
		1420	*(op->above ? &op->above->below : &ms.top) = op;
1337	}	1421	}
1338	op->above = originator;
1339	op->below = originator->below;
1340	if (op->below) op->below->above = op;
1341	else SET_MAP_OB(op->map, op->x, op->y, op);
1342	/* since *below* originator, no need to update top */
1343	originator->below = op;
1344	} else {	1422	else
1345	/* If there are other objects, then */
1346	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1347	object *last=NULL;
1348	/*
1349	* If there are multiple objects on this space, we do some trickier handling.
1350	* We've already dealt with merging if appropriate.
1351	* Generally, we want to put the new object on top. But if
1352	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1353	* floor, we want to insert above that and no further.
1354	* Also, if there are spell objects on this space, we stop processing
1355	* once we get to them. This reduces the need to traverse over all of
1356	* them when adding another one - this saves quite a bit of cpu time
1357	* when lots of spells are cast in one area. Currently, it is presumed
1358	* that flying non pickable objects are spell objects.
1359	*/
1360
1361	while (top != NULL) {
1362	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1363	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1364	if (QUERY_FLAG(top, FLAG_NO_PICK)
1365	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1366	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1367	{
1368	/* We insert above top, so we want this object below this */
1369	top=top->below;
1370	break;
1371	}
1372	last = top;
1373	top = top->above;
1374	}
1375	/* Don't want top to be NULL, so set it to the last valid object */
1376	top = last;
1377
1378	/* We let update_position deal with figuring out what the space
1379	* looks like instead of lots of conditions here.
1380	* makes things faster, and effectively the same result.
1381	*/
1382
1383	/* Have object 'fall below' other objects that block view.
1384	* Unless those objects are exits, type 66
1385	* If INS_ON_TOP is used, don't do this processing
1386	* Need to find the object that in fact blocks view, otherwise
1387	* stacking is a bit odd.
1388	*/
1389	if (!(flag & INS_ON_TOP) &&
1390	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1391	(op->face && !op->face->visibility)) {
1392	for (last=top; last != floor; last=last->below)
1393	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1394	/* Check to see if we found the object that blocks view,
1395	* and make sure we have a below pointer for it so that
1396	* we can get inserted below this one, which requires we
1397	* set top to the object below us.
1398	*/
1399	if (last && last->below && last != floor) top=last->below;
1400	}
1401	} /* If objects on this space */
1402	if (flag & INS_MAP_LOAD)
1403	top = GET_MAP_TOP(op->map,op->x,op->y);
1404	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1405
1406	/* Top is the object that our object (op) is going to get inserted above.
1407	*/	1423	{
1408
1409	/* First object on this space */
1410	if (!top) {
1411	op->above = GET_MAP_OB(op->map, op->x, op->y);
1412	if (op->above) op->above->below = op;
1413	op->below = NULL;
1414	SET_MAP_OB(op->map, op->x, op->y, op);
1415	} else { /* get inserted into the stack above top */
1416	op->above = top->above;	1424	op->above = top->above;
1417	if (op->above) op->above->below = op;
1418	op->below = top;
1419	top->above = op;	1425	top->above = op;
		1426
		1427	op->below = top;
		1428	*(op->above ? &op->above->below : &ms.top) = op;
1420	}	1429	}
1421	if (op->above==NULL)	1430	}
1422	SET_MAP_TOP(op->map,op->x, op->y, op);
1423	} /* else not INS_BELOW_ORIGINATOR */
1424		1431
1425	if(op->type==PLAYER)	1432	if (op->is_player ())
		1433	{
1426	op->contr->do_los=1;	1434	op->contr->do_los = 1;
		1435	++op->map->players;
		1436	op->map->touch ();
		1437	}
1427		1438
1428	/* If we have a floor, we know the player, if any, will be above	1439	op->map->dirty = true;
1429	* it, so save a few ticks and start from there.
1430	*/
1431	if (!(flag & INS_MAP_LOAD))
1432	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1433	if (tmp->type == PLAYER)
1434	tmp->contr->socket.update_look=1;
1435	}
1436		1440
		1441	if (object *pl = ms.player ())
		1442	//TODO: the floorbox prev/next might need updating
		1443	//esrv_send_item (pl, op);
		1444	//TODO: update floorbox to preserve ordering
		1445	if (pl->contr->ns)
		1446	pl->contr->ns->floorbox_update ();
		1447
1437	/* If this object glows, it may affect lighting conditions that are	1448	/* If this object glows, it may affect lighting conditions that are
1438	* visible to others on this map. But update_all_los is really	1449	* visible to others on this map. But update_all_los is really
1439	* an inefficient way to do this, as it means los for all players	1450	* an inefficient way to do this, as it means los for all players
1440	* on the map will get recalculated. The players could very well	1451	* on the map will get recalculated. The players could very well
1441	* be far away from this change and not affected in any way -	1452	* be far away from this change and not affected in any way -
1442	* this should get redone to only look for players within range,	1453	* this should get redone to only look for players within range,
1443	* or just updating the P_NEED_UPDATE for spaces within this area	1454	* or just updating the P_UPTODATE for spaces within this area
1444	* of effect may be sufficient.	1455	* of effect may be sufficient.
1445	*/	1456	*/
1446	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1457	if (op->affects_los ())
		1458	{
		1459	op->ms ().invalidate ();
1447	update_all_los(op->map, op->x, op->y);	1460	update_all_los (op->map, op->x, op->y);
		1461	}
1448		1462
1449
1450	/* updates flags (blocked, alive, no magic, etc) for this map space */	1463	/* updates flags (blocked, alive, no magic, etc) for this map space */
1451	update_object(op,UP_OBJ_INSERT);	1464	update_object (op, UP_OBJ_INSERT);
1452		1465
		1466	INVOKE_OBJECT (INSERT, op);
1453		1467
1454	/* Don't know if moving this to the end will break anything. However,	1468	/* Don't know if moving this to the end will break anything. However,
1455	* we want to have update_look set above before calling this.	1469	* we want to have floorbox_update called before calling this.
1456	*	1470	*
1457	* check_move_on() must be after this because code called from	1471	* check_move_on() must be after this because code called from
1458	* check_move_on() depends on correct map flags (so functions like	1472	* check_move_on() depends on correct map flags (so functions like
1459	* blocked() and wall() work properly), and these flags are updated by	1473	* blocked() and wall() work properly), and these flags are updated by
1460	* update_object().	1474	* update_object().
1461	*/	1475	*/
1462		1476
1463	/* if this is not the head or flag has been passed, don't check walk on status */	1477	/* if this is not the head or flag has been passed, don't check walk on status */
1464
1465	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1478	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
		1479	{
1466	if (check_move_on(op, originator))	1480	if (check_move_on (op, originator))
1467	return NULL;	1481	return 0;
1468		1482
1469	/* If we are a multi part object, lets work our way through the check	1483	/* If we are a multi part object, lets work our way through the check
1470	* walk on's.	1484	* walk on's.
1471	*/	1485	*/
1472	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1486	for (object *tmp = op->more; tmp; tmp = tmp->more)
1473	if (check_move_on (tmp, originator))	1487	if (check_move_on (tmp, originator))
1474	return NULL;	1488	return 0;
1475	}	1489	}
		1490
1476	return op;	1491	return op;
1477	}	1492	}
1478		1493
1479	/* this function inserts an object in the map, but if it	1494	/* this function inserts an object in the map, but if it
1480	* finds an object of its own type, it'll remove that one first.	1495	* finds an object of its own type, it'll remove that one first.
1481	* op is the object to insert it under: supplies x and the map.	1496	* op is the object to insert it under: supplies x and the map.
1482	*/	1497	*/
1483	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1498	void
1484	object *tmp;	1499	replace_insert_ob_in_map (shstr_tmp archname, object *op)
1485	object *tmp1;	1500	{
1486
1487	/* first search for itself and remove any old instances */	1501	/* first search for itself and remove any old instances */
1488		1502
1489	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1503	for (object *tmp = op->ms ().bot; tmp; tmp = tmp->above)
1490	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1504	if (tmp->arch->archname == archname) /* same archetype */
1491	remove_ob(tmp);	1505	tmp->destroy ();
1492	free_object(tmp);
1493	}
1494	}
1495		1506
1496	tmp1=arch_to_object(find_archetype(arch_string));	1507	object *tmp = arch_to_object (archetype::find (archname));
1497		1508
1498		1509	tmp->x = op->x;
1499	tmp1->x = op->x; tmp1->y = op->y;	1510	tmp->y = op->y;
		1511
1500	insert_ob_in_map(tmp1,op->map,op,0);	1512	insert_ob_in_map (tmp, op->map, op, 0);
1501	}
1502
1503	/*
1504	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1505	* is returned contains nr objects, and the remaining parts contains
1506	* the rest (or is removed and freed if that number is 0).
1507	* On failure, NULL is returned, and the reason put into the
1508	* global static errmsg array.
1509	*/
1510
1511	object *get_split_ob(object *orig_ob, uint32 nr) {
1512	object *newob;
1513	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1514
1515	if(orig_ob->nrof<nr) {
1516	sprintf(errmsg,"There are only %d %ss.",
1517	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);
1518	return NULL;
1519	}
1520	newob = object_create_clone(orig_ob);
1521	if((orig_ob->nrof-=nr)<1) {
1522	if ( ! is_removed)
1523	remove_ob(orig_ob);
1524	free_object2(orig_ob, 1);
1525	}
1526	else if ( ! is_removed) {
1527	if(orig_ob->env!=NULL)
1528	sub_weight (orig_ob->env,orig_ob->weight*nr);
1529	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {
1530	strcpy(errmsg, "Tried to split object whose map is not in memory.");
1531	LOG(llevDebug,
1532	"Error, Tried to split object whose map is not in memory.\n");
1533	return NULL;
1534	}
1535	}
1536	newob->nrof=nr;
1537
1538	return newob;
1539	}	1513	}
1540		1514
		1515	object *
		1516	object::insert_at (object *where, object *originator, int flags)
		1517	{
		1518	if (where->env)
		1519	return where->env->insert (this);
		1520	else
		1521	return where->map->insert (this, where->x, where->y, originator, flags);
		1522	}
		1523
1541	/*	1524	/*
1542	* decrease_ob_nr(object, number) decreases a specified number from	1525	* decrease(object, number) decreases a specified number from
1543	* the amount of an object. If the amount reaches 0, the object	1526	* the amount of an object. If the amount reaches 0, the object
1544	* is subsequently removed and freed.	1527	* is subsequently removed and freed.
1545	*	1528	*
1546	* Return value: 'op' if something is left, NULL if the amount reached 0	1529	* Return value: 'op' if something is left, NULL if the amount reached 0
1547	*/	1530	*/
1548		1531	bool
1549	object *decrease_ob_nr (object *op, uint32 i)	1532	object::decrease (sint32 nr)
1550	{	1533	{
1551	object *tmp;	1534	if (!nr)
1552	player *pl;	1535	return true;
1553		1536
1554	if (i == 0) /* objects with op->nrof require this check */	1537	nr = min (nr, nrof);
		1538
		1539	if (nrof > nr)
		1540	{
		1541	nrof -= nr;
		1542	adjust_weight (env, -weight * max (1, nr)); // carrying == 0
		1543
		1544	if (object *pl = visible_to ())
		1545	esrv_update_item (UPD_NROF, pl, this);
		1546
		1547	return true;
		1548	}
		1549	else
		1550	{
		1551	destroy ();
		1552	return false;
		1553	}
		1554	}
		1555
		1556	/*
		1557	* split(ob,nr) splits up ob into two parts. The part which
		1558	* is returned contains nr objects, and the remaining parts contains
		1559	* the rest (or is removed and returned if that number is 0).
		1560	* On failure, NULL is returned.
		1561	*/
		1562	object *
		1563	object::split (sint32 nr)
		1564	{
		1565	int have = number_of ();
		1566
		1567	if (have < nr)
		1568	return 0;
		1569	else if (have == nr)
		1570	{
		1571	remove ();
		1572	return this;
		1573	}
		1574	else
		1575	{
		1576	decrease (nr);
		1577
		1578	object *op = deep_clone ();
		1579	op->nrof = nr;
1555	return op;	1580	return op;
1556
1557	if (i > op->nrof)
1558	i = op->nrof;
1559
1560	if (QUERY_FLAG (op, FLAG_REMOVED))
1561	{	1581	}
1562	op->nrof -= i;	1582	}
		1583
		1584	object *
		1585	insert_ob_in_ob (object *op, object *where)
		1586	{
		1587	if (!where)
1563	}	1588	{
1564	else if (op->env != NULL)	1589	char *dump = dump_object (op);
1565	{	1590	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1566	/* is this object in the players inventory, or sub container	1591	free (dump);
1567	* therein?
1568	*/
1569	tmp = is_player_inv (op->env);
1570	/* nope. Is this a container the player has opened?
1571	* If so, set tmp to that player.
1572	* IMO, searching through all the players will mostly
1573	* likely be quicker than following op->env to the map,
1574	* and then searching the map for a player.
1575	*/
1576	if (!tmp) {
1577	for (pl=first_player; pl; pl=pl->next)
1578	if (pl->ob->container == op->env) break;
1579	if (pl) tmp=pl->ob;
1580	else tmp=NULL;
1581	}
1582
1583	if (i < op->nrof) {
1584	sub_weight (op->env, op->weight * i);
1585	op->nrof -= i;
1586	if (tmp) {
1587	esrv_send_item(tmp, op);
1588	}
1589	} else {
1590	remove_ob (op);
1591	op->nrof = 0;
1592	if (tmp) {
1593	esrv_del_item(tmp->contr, op->count);
1594	}
1595	}
1596	}
1597	else
1598	{
1599	object *above = op->above;
1600
1601	if (i < op->nrof) {
1602	op->nrof -= i;
1603	} else {
1604	remove_ob (op);
1605	op->nrof = 0;
1606	}
1607	/* Since we just removed op, op->above is null */
1608	for (tmp = above; tmp != NULL; tmp = tmp->above)
1609	if (tmp->type == PLAYER) {
1610	if (op->nrof)
1611	esrv_send_item(tmp, op);
1612	else
1613	esrv_del_item(tmp->contr, op->count);
1614	}
1615	}
1616
1617	if (op->nrof) {
1618	return op;	1592	return op;
1619	} else {	1593	}
1620	free_object (op);	1594
1621	return NULL;	1595	if (where->head_ () != where)
1622	}	1596	{
1623	}	1597	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1624		1598	where = where->head;
1625	/*
1626	* add_weight(object, weight) adds the specified weight to an object,
1627	* and also updates how much the environment(s) is/are carrying.
1628	*/
1629
1630	void add_weight (object *op, signed long weight) {
1631	while (op!=NULL) {
1632	if (op->type == CONTAINER) {
1633	weight=(signed long)(weight*(100-op->stats.Str)/100);
1634	}
1635	op->carrying+=weight;
1636	op=op->env;
1637	}	1599	}
1638	}
1639		1600
		1601	return where->insert (op);
		1602	}
		1603
1640	/*	1604	/*
1641	* insert_ob_in_ob(op,environment):	1605	* env->insert (op)
1642	* This function inserts the object op in the linked list	1606	* This function inserts the object op in the linked list
1643	* inside the object environment.	1607	* inside the object environment.
1644	*	1608	*
1645	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1646	* the inventory at the last position or next to other objects of the same
1647	* type.
1648	* Frank: Now sorted by type, archetype and magic!
1649	*
1650	* The function returns now pointer to inserted item, and return value can	1609	* The function returns now pointer to inserted item, and return value can
1651	* be != op, if items are merged. -Tero	1610	* be != op, if items are merged. -Tero
1652	*/	1611	*/
1653		1612	object *
1654	object *insert_ob_in_ob(object *op,object *where) {	1613	object::insert (object *op)
1655	object *tmp, *otmp;	1614	{
1656
1657	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1658	dump_object(op);
1659	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);
1660	return op;
1661	}
1662	if(where==NULL) {
1663	dump_object(op);
1664	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1665	return op;
1666	}
1667	if (where->head) {
1668	LOG(llevDebug,
1669	"Warning: Tried to insert object wrong part of multipart object.\n");
1670	where = where->head;
1671	}
1672	if (op->more) {	1615	if (op->more)
		1616	{
1673	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1617	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1674	&op->name, op->count);
1675	return op;	1618	return op;
1676	}	1619	}
1677	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1620
1678	CLEAR_FLAG(op, FLAG_REMOVED);	1621	op->remove ();
		1622
		1623	op->flag [FLAG_OBJ_ORIGINAL] = 0;
		1624
1679	if(op->nrof) {	1625	if (op->nrof)
1680	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1626	for (object *tmp = inv; tmp; tmp = tmp->below)
1681	if ( CAN_MERGE(tmp,op) ) {	1627	if (object::can_merge (tmp, op))
		1628	{
1682	/* return the original object and remove inserted object	1629	/* return the original object and remove inserted object
1683	(client needs the original object) */	1630	(client needs the original object) */
1684	tmp->nrof += op->nrof;	1631	tmp->nrof += op->nrof;
1685	/* Weight handling gets pretty funky. Since we are adding to	1632
1686	* tmp->nrof, we need to increase the weight.	1633	if (object *pl = tmp->visible_to ())
1687	*/	1634	esrv_update_item (UPD_NROF, pl, tmp);
1688	add_weight (where, op->weight*op->nrof);	1635
1689	SET_FLAG(op, FLAG_REMOVED);	1636	adjust_weight (this, op->total_weight ());
1690	free_object(op); /* free the inserted object */	1637
		1638	op->destroy ();
1691	op = tmp;	1639	op = tmp;
1692	remove_ob (op); /* and fix old object's links */	1640	goto inserted;
1693	CLEAR_FLAG(op, FLAG_REMOVED);
1694	break;
1695	}	1641	}
1696		1642
1697	/* I assume combined objects have no inventory	1643	op->owner = 0; // it's his/hers now. period.
1698	* We add the weight - this object could have just been removed	1644	op->map = 0;
1699	* (if it was possible to merge). calling remove_ob will subtract	1645	op->x = 0;
1700	* the weight, so we need to add it in again, since we actually do	1646	op->y = 0;
1701	* the linking below
1702	*/
1703	add_weight (where, op->weight*op->nrof);
1704	} else
1705	add_weight (where, (op->weight+op->carrying));
1706		1647
1707	otmp=is_player_inv(where);
1708	if (otmp&&otmp->contr!=NULL) {
1709	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1710	fix_player(otmp);
1711	}
1712
1713	op->map=NULL;
1714	op->env=where;
1715	op->above=NULL;	1648	op->above = 0;
1716	op->below=NULL;	1649	op->below = inv;
1717	op->x=0,op->y=0;	1650	op->env = this;
1718		1651
		1652	if (inv)
		1653	inv->above = op;
		1654
		1655	inv = op;
		1656
		1657	op->flag [FLAG_REMOVED] = 0;
		1658
		1659	if (object *pl = op->visible_to ())
		1660	esrv_send_item (pl, op);
		1661
		1662	adjust_weight (this, op->total_weight ());
		1663
		1664	inserted:
1719	/* reset the light list and los of the players on the map */	1665	/* reset the light list and los of the players on the map */
1720	if((op->glow_radius!=0)&&where->map)	1666	if (op->glow_radius && is_on_map ())
1721	{	1667	{
1722	#ifdef DEBUG_LIGHTS	1668	update_stats ();
1723	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1669	update_all_los (map, x, y);
1724	op->name);
1725	#endif /* DEBUG_LIGHTS */
1726	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);
1727	}	1670	}
		1671	else if (is_player () && !flag [FLAG_NO_FIX_PLAYER])
		1672	// if this is a player's inventory, update stats
		1673	update_stats ();
1728		1674
1729	/* Client has no idea of ordering so lets not bother ordering it here.	1675	INVOKE_OBJECT (INSERT, this);
1730	* It sure simplifies this function...	1676
1731	*/
1732	if (where->inv==NULL)
1733	where->inv=op;
1734	else {
1735	op->below = where->inv;
1736	op->below->above = op;
1737	where->inv = op;
1738	}
1739	return op;	1677	return op;
1740	}	1678	}
1741		1679
1742	/*	1680	/*
1743	* Checks if any objects has a move_type that matches objects	1681	* Checks if any objects has a move_type that matches objects
…		…
1757	*	1695	*
1758	* MSW 2001-07-08: Check all objects on space, not just those below	1696	* MSW 2001-07-08: Check all objects on space, not just those below
1759	* object being inserted. insert_ob_in_map may not put new objects	1697	* object being inserted. insert_ob_in_map may not put new objects
1760	* on top.	1698	* on top.
1761	*/	1699	*/
1762		1700	int
1763	int check_move_on (object *op, object *originator)	1701	check_move_on (object *op, object *originator)
1764	{	1702	{
1765	object *tmp;	1703	object *tmp;
1766	tag_t tag;
1767	mapstruct *m=op->map;	1704	maptile *m = op->map;
1768	int x=op->x, y=op->y;	1705	int x = op->x, y = op->y;
		1706
1769	MoveType move_on, move_slow, move_block;	1707	MoveType move_on, move_slow, move_block;
1770		1708
1771	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1709	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1772	return 0;	1710	return 0;
1773		1711
1774	tag = op->count;
1775
1776	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1712	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1777	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1713	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1778	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1714	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1779		1715
1780	/* if nothing on this space will slow op down or be applied,	1716	/* if nothing on this space will slow op down or be applied,
1781	* no need to do checking below. have to make sure move_type	1717	* no need to do checking below. have to make sure move_type
1782	* is set, as lots of objects don't have it set - we treat that	1718	* is set, as lots of objects don't have it set - we treat that
1783	* as walking.	1719	* as walking.
1784	*/	1720	*/
1785	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1721	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1786	return 0;	1722	return 0;
1787		1723
1788	/* This is basically inverse logic of that below - basically,	1724	/* This is basically inverse logic of that below - basically,
1789	* if the object can avoid the move on or slow move, they do so,	1725	* if the object can avoid the move on or slow move, they do so,
1790	* but can't do it if the alternate movement they are using is	1726	* but can't do it if the alternate movement they are using is
1791	* blocked. Logic on this seems confusing, but does seem correct.	1727	* blocked. Logic on this seems confusing, but does seem correct.
1792	*/	1728	*/
1793	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1729	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1794	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1730	return 0;
1795		1731
1796	/* The objects have to be checked from top to bottom.	1732	/* The objects have to be checked from top to bottom.
1797	* Hence, we first go to the top:	1733	* Hence, we first go to the top:
1798	*/	1734	*/
1799		1735
1800	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1736	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1801	tmp->above!=NULL; tmp=tmp->above) {	1737	{
1802	/* Trim the search when we find the first other spell effect	1738	/* Trim the search when we find the first other spell effect
1803	* this helps performance so that if a space has 50 spell objects,	1739	* this helps performance so that if a space has 50 spell objects,
1804	* we don't need to check all of them.	1740	* we don't need to check all of them.
1805	*/	1741	*/
1806	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1742	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1743	break;
		1744	}
		1745
		1746	for (; tmp; tmp = tmp->below)
1807	}	1747	{
1808	for(;tmp!=NULL; tmp=tmp->below) {	1748	if (tmp == op)
1809	if (tmp == op) continue; /* Can't apply yourself */	1749	continue; /* Can't apply yourself */
1810		1750
1811	/* Check to see if one of the movement types should be slowed down.	1751	/* Check to see if one of the movement types should be slowed down.
1812	* Second check makes sure that the movement types not being slowed	1752	* Second check makes sure that the movement types not being slowed
1813	* (~slow_move) is not blocked on this space - just because the	1753	* (~slow_move) is not blocked on this space - just because the
1814	* space doesn't slow down swimming (for example), if you can't actually	1754	* space doesn't slow down swimming (for example), if you can't actually
1815	* swim on that space, can't use it to avoid the penalty.	1755	* swim on that space, can't use it to avoid the penalty.
1816	*/	1756	*/
1817	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1757	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1758	{
1818	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1759	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1819	((op->move_type & tmp->move_slow) &&
1820	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1760	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1761	{
1821		1762
1822	float diff;	1763	float
1823
1824	diff = tmp->move_slow_penalty*FABS(op->speed);	1764	diff = tmp->move_slow_penalty * fabs (op->speed);
1825	if (op->type == PLAYER) {	1765
		1766	if (op->is_player ())
1826	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1767	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1827	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1768	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1828	diff /= 4.0;	1769	diff /= 4.0;
1829	}	1770
1830	}
1831	op->speed_left -= diff;	1771	op->speed_left -= diff;
1832	}	1772	}
1833	}	1773	}
1834		1774
1835	/* Basically same logic as above, except now for actual apply. */	1775	/* Basically same logic as above, except now for actual apply. */
1836	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1776	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1837	((op->move_type & tmp->move_on) &&
1838	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1777	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1839		1778	{
1840	move_apply(tmp, op, originator);	1779	move_apply (tmp, op, originator);
		1780
1841	if (was_destroyed (op, tag))	1781	if (op->destroyed ())
1842	return 1;	1782	return 1;
1843		1783
1844	/* what the person/creature stepped onto has moved the object	1784	/* what the person/creature stepped onto has moved the object
1845	* someplace new. Don't process any further - if we did,	1785	* someplace new. Don't process any further - if we did,
1846	* have a feeling strange problems would result.	1786	* have a feeling strange problems would result.
1847	*/	1787	*/
1848	if (op->map != m || op->x != x || op->y != y) return 0;	1788	if (op->map != m || op->x != x || op->y != y)
		1789	return 0;
1849	}	1790	}
1850	}	1791	}
		1792
1851	return 0;	1793	return 0;
1852	}	1794	}
1853		1795
1854	/*	1796	/*
1855	* present_arch(arch, map, x, y) searches for any objects with	1797	* present_arch(arch, map, x, y) searches for any objects with
1856	* a matching archetype at the given map and coordinates.	1798	* a matching archetype at the given map and coordinates.
1857	* The first matching object is returned, or NULL if none.	1799	* The first matching object is returned, or NULL if none.
1858	*/	1800	*/
1859		1801	object *
1860	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1802	present_arch (const archetype *at, maptile *m, int x, int y)
1861	object *tmp;	1803	{
1862	if(m==NULL || out_of_map(m,x,y)) {	1804	if (!m || out_of_map (m, x, y))
		1805	{
1863	LOG(llevError,"Present_arch called outside map.\n");	1806	LOG (llevError, "Present_arch called outside map.\n");
1864	return NULL;	1807	return NULL;
1865	}	1808	}
1866	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1809
1867	if(tmp->arch == at)	1810	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
		1811	if (tmp->arch->archname == at->archname)
1868	return tmp;	1812	return tmp;
		1813
1869	return NULL;	1814	return NULL;
1870	}	1815	}
1871		1816
1872	/*	1817	/*
1873	* present(type, map, x, y) searches for any objects with	1818	* present(type, map, x, y) searches for any objects with
1874	* a matching type variable at the given map and coordinates.	1819	* a matching type variable at the given map and coordinates.
1875	* The first matching object is returned, or NULL if none.	1820	* The first matching object is returned, or NULL if none.
1876	*/	1821	*/
1877		1822	object *
1878	object *present(unsigned char type,mapstruct *m, int x,int y) {	1823	present (unsigned char type, maptile *m, int x, int y)
1879	object *tmp;	1824	{
1880	if(out_of_map(m,x,y)) {	1825	if (out_of_map (m, x, y))
		1826	{
1881	LOG(llevError,"Present called outside map.\n");	1827	LOG (llevError, "Present called outside map.\n");
1882	return NULL;	1828	return NULL;
1883	}	1829	}
1884	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1830
		1831	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1885	if(tmp->type==type)	1832	if (tmp->type == type)
1886	return tmp;	1833	return tmp;
		1834
1887	return NULL;	1835	return NULL;
1888	}	1836	}
1889		1837
1890	/*	1838	/*
1891	* present_in_ob(type, object) searches for any objects with	1839	* present_in_ob(type, object) searches for any objects with
1892	* a matching type variable in the inventory of the given object.	1840	* a matching type variable in the inventory of the given object.
1893	* The first matching object is returned, or NULL if none.	1841	* The first matching object is returned, or NULL if none.
1894	*/	1842	*/
1895		1843	object *
1896	object *present_in_ob(unsigned char type, const object *op) {	1844	present_in_ob (unsigned char type, const object *op)
1897	object *tmp;	1845	{
1898	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1846	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1899	if(tmp->type==type)	1847	if (tmp->type == type)
1900	return tmp;	1848	return tmp;
		1849
1901	return NULL;	1850	return NULL;
1902	}	1851	}
1903		1852
1904	/*	1853	/*
1905	* present_in_ob (type, str, object) searches for any objects with	1854	* present_in_ob (type, str, object) searches for any objects with
…		…
1913	* str is the string to match against. Note that we match against	1862	* str is the string to match against. Note that we match against
1914	* the object name, not the archetype name. this is so that the	1863	* the object name, not the archetype name. this is so that the
1915	* spell code can use one object type (force), but change it's name	1864	* spell code can use one object type (force), but change it's name
1916	* to be unique.	1865	* to be unique.
1917	*/	1866	*/
1918		1867	object *
1919	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1868	present_in_ob_by_name (int type, const char *str, const object *op)
1920	object *tmp;	1869	{
1921
1922	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1870	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1923	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1871	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1924	return tmp;	1872	return tmp;
1925	}	1873
1926	return NULL;	1874	return 0;
1927	}	1875	}
1928		1876
1929	/*	1877	/*
1930	* present_arch_in_ob(archetype, object) searches for any objects with	1878	* present_arch_in_ob(archetype, object) searches for any objects with
1931	* a matching archetype in the inventory of the given object.	1879	* a matching archetype in the inventory of the given object.
1932	* The first matching object is returned, or NULL if none.	1880	* The first matching object is returned, or NULL if none.
1933	*/	1881	*/
1934		1882	object *
1935	object *present_arch_in_ob(const archetype *at, const object *op) {	1883	present_arch_in_ob (const archetype *at, const object *op)
1936	object *tmp;	1884	{
1937	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1885	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1938	if( tmp->arch == at)	1886	if (tmp->arch->archname == at->archname)
1939	return tmp;	1887	return tmp;
		1888
1940	return NULL;	1889	return NULL;
1941	}	1890	}
1942		1891
1943	/*	1892	/*
1944	* activate recursively a flag on an object inventory	1893	* activate recursively a flag on an object inventory
1945	*/	1894	*/
		1895	void
1946	void flag_inv(object*op, int flag){	1896	flag_inv (object *op, int flag)
1947	object *tmp;	1897	{
1948	if(op->inv)
1949	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1898	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1899	{
1950	SET_FLAG(tmp, flag);	1900	SET_FLAG (tmp, flag);
1951	flag_inv(tmp,flag);	1901	flag_inv (tmp, flag);
1952	}	1902	}
		1903	}
		1904
1953	}/*	1905	/*
1954	* desactivate recursively a flag on an object inventory	1906	* deactivate recursively a flag on an object inventory
1955	*/	1907	*/
		1908	void
1956	void unflag_inv(object*op, int flag){	1909	unflag_inv (object *op, int flag)
1957	object *tmp;	1910	{
1958	if(op->inv)
1959	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1911	for (object *tmp = op->inv; tmp; tmp = tmp->below)
		1912	{
1960	CLEAR_FLAG(tmp, flag);	1913	CLEAR_FLAG (tmp, flag);
1961	unflag_inv(tmp,flag);	1914	unflag_inv (tmp, flag);
1962	}	1915	}
1963	}
1964
1965	/*
1966	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1967	* all it's inventory (recursively).
1968	* If checksums are used, a player will get set_cheat called for
1969	* him/her-self and all object carried by a call to this function.
1970	*/
1971
1972	void set_cheat(object *op) {
1973	SET_FLAG(op, FLAG_WAS_WIZ);
1974	flag_inv(op, FLAG_WAS_WIZ);
1975	}	1916	}
1976		1917
1977	/*	1918	/*
1978	* find_free_spot(object, map, x, y, start, stop) will search for	1919	* find_free_spot(object, map, x, y, start, stop) will search for
1979	* a spot at the given map and coordinates which will be able to contain	1920	* a spot at the given map and coordinates which will be able to contain
…		…
1981	* to search (see the freearr_x/y[] definition).	1922	* to search (see the freearr_x/y[] definition).
1982	* It returns a random choice among the alternatives found.	1923	* It returns a random choice among the alternatives found.
1983	* start and stop are where to start relative to the free_arr array (1,9	1924	* start and stop are where to start relative to the free_arr array (1,9
1984	* does all 4 immediate directions). This returns the index into the	1925	* does all 4 immediate directions). This returns the index into the
1985	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1926	* array of the free spot, -1 if no spot available (dir 0 = x,y)
1986	* Note - this only checks to see if there is space for the head of the
1987	* object - if it is a multispace object, this should be called for all
1988	* pieces.
1989	* Note2: This function does correctly handle tiled maps, but does not	1927	* Note: This function does correctly handle tiled maps, but does not
1990	* inform the caller. However, insert_ob_in_map will update as	1928	* inform the caller. However, insert_ob_in_map will update as
1991	* necessary, so the caller shouldn't need to do any special work.	1929	* necessary, so the caller shouldn't need to do any special work.
1992	* Note - updated to take an object instead of archetype - this is necessary	1930	* Note - updated to take an object instead of archetype - this is necessary
1993	* because arch_blocked (now ob_blocked) needs to know the movement type	1931	* because arch_blocked (now ob_blocked) needs to know the movement type
1994	* to know if the space in question will block the object. We can't use	1932	* to know if the space in question will block the object. We can't use
1995	* the archetype because that isn't correct if the monster has been	1933	* the archetype because that isn't correct if the monster has been
1996	* customized, changed states, etc.	1934	* customized, changed states, etc.
1997	*/	1935	*/
1998		1936	int
1999	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1937	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1938	{
		1939	int altern[SIZEOFFREE];
2000	int i,index=0, flag;	1940	int index = 0, flag;
2001	static int altern[SIZEOFFREE];
2002		1941
2003	for(i=start;i<stop;i++) {	1942	for (int i = start; i < stop; i++)
2004	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1943	{
2005	if(!flag)	1944	mapxy pos (m, x, y); pos.move (i);
		1945
		1946	if (!pos.normalise ())
		1947	continue;
		1948
		1949	mapspace &ms = *pos;
		1950
		1951	if (ms.flags () & P_IS_ALIVE)
		1952	continue;
		1953
		1954	/* However, often
		1955	* ob doesn't have any move type (when used to place exits)
		1956	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		1957	*/
		1958	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		1959	{
2006	altern[index++]=i;	1960	altern [index++] = i;
		1961	continue;
		1962	}
2007		1963
2008	/* Basically, if we find a wall on a space, we cut down the search size.	1964	/* Basically, if we find a wall on a space, we cut down the search size.
2009	* In this way, we won't return spaces that are on another side of a wall.	1965	* In this way, we won't return spaces that are on another side of a wall.
2010	* This mostly work, but it cuts down the search size in all directions -	1966	* This mostly work, but it cuts down the search size in all directions -
2011	* if the space being examined only has a wall to the north and empty	1967	* if the space being examined only has a wall to the north and empty
2012	* spaces in all the other directions, this will reduce the search space	1968	* spaces in all the other directions, this will reduce the search space
2013	* to only the spaces immediately surrounding the target area, and	1969	* to only the spaces immediately surrounding the target area, and
2014	* won't look 2 spaces south of the target space.	1970	* won't look 2 spaces south of the target space.
2015	*/	1971	*/
2016	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	1972	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		1973	{
2017	stop=maxfree[i];	1974	stop = maxfree[i];
2018	}	1975	continue;
2019	if(!index) return -1;	1976	}
2020	return altern[RANDOM()%index];
2021	}
2022		1977
		1978	/* Note it is intentional that we check ob - the movement type of the
		1979	* head of the object should correspond for the entire object.
		1980	*/
		1981	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		1982	continue;
		1983
		1984	if (ob->blocked (pos.m, pos.x, pos.y))
		1985	continue;
		1986
		1987	altern [index++] = i;
		1988	}
		1989
		1990	if (!index)
		1991	return -1;
		1992
		1993	return altern [rndm (index)];
		1994	}
		1995
2023	/*	1996	/*
2024	* find_first_free_spot(archetype, mapstruct, x, y) works like	1997	* find_first_free_spot(archetype, maptile, x, y) works like
2025	* find_free_spot(), but it will search max number of squares.	1998	* find_free_spot(), but it will search max number of squares.
2026	* But it will return the first available spot, not a random choice.	1999	* But it will return the first available spot, not a random choice.
2027	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2000	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2028	*/	2001	*/
2029		2002	int
2030	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2003	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2031	int i;	2004	{
2032	for(i=0;i<SIZEOFFREE;i++) {	2005	for (int i = 0; i < SIZEOFFREE; i++)
2033	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2006	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2034	return i;	2007	return i;
2035	}	2008
2036	return -1;	2009	return -1;
2037	}	2010	}
2038		2011
2039	/*	2012	/*
2040	* The function permute(arr, begin, end) randomly reorders the array	2013	* The function permute(arr, begin, end) randomly reorders the array
2041	* arr[begin..end-1].	2014	* arr[begin..end-1].
		2015	* now uses a fisher-yates shuffle, old permute was broken
2042	*/	2016	*/
		2017	static void
2043	static void permute(int *arr, int begin, int end)	2018	permute (int *arr, int begin, int end)
2044	{	2019	{
2045	int i, j, tmp, len;	2020	arr += begin;
		2021	end -= begin;
2046		2022
2047	len = end-begin;	2023	while (--end)
2048	for(i = begin; i < end; i++)	2024	swap (arr [end], arr [rndm (end + 1)]);
2049	{
2050	j = begin+RANDOM()%len;
2051
2052	tmp = arr[i];
2053	arr[i] = arr[j];
2054	arr[j] = tmp;
2055	}
2056	}	2025	}
2057		2026
2058	/* new function to make monster searching more efficient, and effective!	2027	/* new function to make monster searching more efficient, and effective!
2059	* This basically returns a randomized array (in the passed pointer) of	2028	* This basically returns a randomized array (in the passed pointer) of
2060	* the spaces to find monsters. In this way, it won't always look for	2029	* the spaces to find monsters. In this way, it won't always look for
2061	* monsters to the north first. However, the size of the array passed	2030	* monsters to the north first. However, the size of the array passed
2062	* covers all the spaces, so within that size, all the spaces within	2031	* covers all the spaces, so within that size, all the spaces within
2063	* the 3x3 area will be searched, just not in a predictable order.	2032	* the 3x3 area will be searched, just not in a predictable order.
2064	*/	2033	*/
		2034	void
2065	void get_search_arr(int *search_arr)	2035	get_search_arr (int *search_arr)
2066	{	2036	{
2067	int i;	2037	int i;
2068		2038
2069	for(i = 0; i < SIZEOFFREE; i++)	2039	for (i = 0; i < SIZEOFFREE; i++)
2070	{
2071	search_arr[i] = i;	2040	search_arr[i] = i;
2072	}
2073		2041
2074	permute(search_arr, 1, SIZEOFFREE1+1);	2042	permute (search_arr, 1, SIZEOFFREE1 + 1);
2075	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2043	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2076	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2044	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2077	}	2045	}
2078		2046
2079	/*	2047	/*
2080	* find_dir(map, x, y, exclude) will search some close squares in the	2048	* find_dir(map, x, y, exclude) will search some close squares in the
2081	* given map at the given coordinates for live objects.	2049	* given map at the given coordinates for live objects.
…		…
2086	* Perhaps incorrectly, but I'm making the assumption that exclude	2054	* Perhaps incorrectly, but I'm making the assumption that exclude
2087	* is actually want is going to try and move there. We need this info	2055	* is actually want is going to try and move there. We need this info
2088	* because we have to know what movement the thing looking to move	2056	* because we have to know what movement the thing looking to move
2089	* there is capable of.	2057	* there is capable of.
2090	*/	2058	*/
2091		2059	int
2092	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2060	find_dir (maptile *m, int x, int y, object *exclude)
		2061	{
2093	int i,max=SIZEOFFREE, mflags;	2062	int max = SIZEOFFREE, mflags;
2094	sint16 nx, ny;
2095	object *tmp;
2096	mapstruct *mp;
2097	MoveType blocked, move_type;	2063	MoveType move_type;
2098		2064
2099	if (exclude && exclude->head) {	2065	if (exclude && exclude->head_ () != exclude)
		2066	{
2100	exclude = exclude->head;	2067	exclude = exclude->head;
2101	move_type = exclude->move_type;	2068	move_type = exclude->move_type;
2102	} else {	2069	}
		2070	else
		2071	{
2103	/* If we don't have anything, presume it can use all movement types. */	2072	/* If we don't have anything, presume it can use all movement types. */
2104	move_type=MOVE_ALL;	2073	move_type = MOVE_ALL;
		2074	}
		2075
		2076	for (int i = 1; i < max; i++)
2105	}	2077	{
		2078	mapxy pos (m, x, y);
		2079	pos.move (i);
2106		2080
2107	for(i=1;i<max;i++) {	2081	if (!pos.normalise ())
2108	mp = m;
2109	nx = x + freearr_x[i];	2082	max = maxfree[i];
2110	ny = y + freearr_y[i];	2083	else
		2084	{
		2085	mapspace &ms = *pos;
2111		2086
2112	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2087	if ((move_type & ms.move_block) == move_type)
2113	if (mflags & P_OUT_OF_MAP) {
2114	max = maxfree[i];	2088	max = maxfree [i];
2115	} else {
2116	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2117
2118	if ((move_type & blocked) == move_type) {
2119	max=maxfree[i];
2120	} else if (mflags & P_IS_ALIVE) {	2089	else if (ms.flags () & P_IS_ALIVE)
2121	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2090	{
2122	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2091	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
		2092	if ((tmp->flag [FLAG_MONSTER] || tmp->is_player ())
2123	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2093	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2124	break;
2125	}
2126	}
2127	if(tmp) {
2128	return freedir[i];	2094	return freedir [i];
2129	}
2130	}	2095	}
2131	}	2096	}
2132	}	2097	}
		2098
2133	return 0;	2099	return 0;
2134	}	2100	}
2135		2101
2136	/*	2102	/*
2137	* distance(object 1, object 2) will return the square of the	2103	* distance(object 1, object 2) will return the square of the
2138	* distance between the two given objects.	2104	* distance between the two given objects.
2139	*/	2105	*/
2140		2106	int
2141	int distance(const object *ob1, const object *ob2) {	2107	distance (const object *ob1, const object *ob2)
2142	int i;	2108	{
2143	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2109	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2144	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2145	return i;
2146	}	2110	}
2147		2111
2148	/*	2112	/*
2149	* find_dir_2(delta-x,delta-y) will return a direction in which	2113	* find_dir_2(delta-x,delta-y) will return a direction in which
2150	* an object which has subtracted the x and y coordinates of another	2114	* an object which has subtracted the x and y coordinates of another
2151	* object, needs to travel toward it.	2115	* object, needs to travel toward it.
2152	*/	2116	*/
2153		2117	int
2154	int find_dir_2(int x, int y) {	2118	find_dir_2 (int x, int y)
		2119	{
2155	int q;	2120	int q;
2156		2121
2157	if(y)	2122	if (y)
2158	q=x*100/y;	2123	q = x * 100 / y;
2159	else if (x)	2124	else if (x)
2160	q= -300*x;	2125	q = -300 * x;
2161	else	2126	else
2162	return 0;	2127	return 0;
2163		2128
2164	if(y>0) {	2129	if (y > 0)
		2130	{
2165	if(q < -242)	2131	if (q < -242)
2166	return 3 ;	2132	return 3;
2167	if (q < -41)	2133	if (q < -41)
2168	return 2 ;	2134	return 2;
2169	if (q < 41)	2135	if (q < 41)
2170	return 1 ;	2136	return 1;
2171	if (q < 242)	2137	if (q < 242)
2172	return 8 ;	2138	return 8;
2173	return 7 ;	2139	return 7;
2174	}	2140	}
2175		2141
2176	if (q < -242)	2142	if (q < -242)
2177	return 7 ;	2143	return 7;
2178	if (q < -41)	2144	if (q < -41)
2179	return 6 ;	2145	return 6;
2180	if (q < 41)	2146	if (q < 41)
2181	return 5 ;	2147	return 5;
2182	if (q < 242)	2148	if (q < 242)
2183	return 4 ;	2149	return 4;
2184		2150
2185	return 3 ;	2151	return 3;
2186	}
2187
2188	/*
2189	* absdir(int): Returns a number between 1 and 8, which represent
2190	* the "absolute" direction of a number (it actually takes care of
2191	* "overflow" in previous calculations of a direction).
2192	*/
2193
2194	int absdir(int d) {
2195	while(d<1) d+=8;
2196	while(d>8) d-=8;
2197	return d;
2198	}	2152	}
2199		2153
2200	/*	2154	/*
2201	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2155	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2202	* between two directions (which are expected to be absolute (see absdir())	2156	* between two directions (which are expected to be absolute (see absdir())
2203	*/	2157	*/
2204		2158	int
2205	int dirdiff(int dir1, int dir2) {	2159	dirdiff (int dir1, int dir2)
		2160	{
2206	int d;	2161	int d;
		2162
2207	d = abs(dir1 - dir2);	2163	d = abs (dir1 - dir2);
2208	if(d>4)	2164	if (d > 4)
2209	d = 8 - d;	2165	d = 8 - d;
		2166
2210	return d;	2167	return d;
2211	}	2168	}
2212		2169
2213	/* peterm:	2170	/* peterm:
2214	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2171	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2217	* This basically means that if direction is 15, then it could either go	2174	* This basically means that if direction is 15, then it could either go
2218	* direction 4, 14, or 16 to get back to where we are.	2175	* direction 4, 14, or 16 to get back to where we are.
2219	* Moved from spell_util.c to object.c with the other related direction	2176	* Moved from spell_util.c to object.c with the other related direction
2220	* functions.	2177	* functions.
2221	*/	2178	*/
2222
2223	int reduction_dir[SIZEOFFREE][3] = {	2179	const int reduction_dir[SIZEOFFREE][3] = {
2224	{0,0,0}, /* 0 */	2180	{0, 0, 0}, /* 0 */
2225	{0,0,0}, /* 1 */	2181	{0, 0, 0}, /* 1 */
2226	{0,0,0}, /* 2 */	2182	{0, 0, 0}, /* 2 */
2227	{0,0,0}, /* 3 */	2183	{0, 0, 0}, /* 3 */
2228	{0,0,0}, /* 4 */	2184	{0, 0, 0}, /* 4 */
2229	{0,0,0}, /* 5 */	2185	{0, 0, 0}, /* 5 */
2230	{0,0,0}, /* 6 */	2186	{0, 0, 0}, /* 6 */
2231	{0,0,0}, /* 7 */	2187	{0, 0, 0}, /* 7 */
2232	{0,0,0}, /* 8 */	2188	{0, 0, 0}, /* 8 */
2233	{8,1,2}, /* 9 */	2189	{8, 1, 2}, /* 9 */
2234	{1,2,-1}, /* 10 */	2190	{1, 2, -1}, /* 10 */
2235	{2,10,12}, /* 11 */	2191	{2, 10, 12}, /* 11 */
2236	{2,3,-1}, /* 12 */	2192	{2, 3, -1}, /* 12 */
2237	{2,3,4}, /* 13 */	2193	{2, 3, 4}, /* 13 */
2238	{3,4,-1}, /* 14 */	2194	{3, 4, -1}, /* 14 */
2239	{4,14,16}, /* 15 */	2195	{4, 14, 16}, /* 15 */
2240	{5,4,-1}, /* 16 */	2196	{5, 4, -1}, /* 16 */
2241	{4,5,6}, /* 17 */	2197	{4, 5, 6}, /* 17 */
2242	{6,5,-1}, /* 18 */	2198	{6, 5, -1}, /* 18 */
2243	{6,20,18}, /* 19 */	2199	{6, 20, 18}, /* 19 */
2244	{7,6,-1}, /* 20 */	2200	{7, 6, -1}, /* 20 */
2245	{6,7,8}, /* 21 */	2201	{6, 7, 8}, /* 21 */
2246	{7,8,-1}, /* 22 */	2202	{7, 8, -1}, /* 22 */
2247	{8,22,24}, /* 23 */	2203	{8, 22, 24}, /* 23 */
2248	{8,1,-1}, /* 24 */	2204	{8, 1, -1}, /* 24 */
2249	{24,9,10}, /* 25 */	2205	{24, 9, 10}, /* 25 */
2250	{9,10,-1}, /* 26 */	2206	{9, 10, -1}, /* 26 */
2251	{10,11,-1}, /* 27 */	2207	{10, 11, -1}, /* 27 */
2252	{27,11,29}, /* 28 */	2208	{27, 11, 29}, /* 28 */
2253	{11,12,-1}, /* 29 */	2209	{11, 12, -1}, /* 29 */
2254	{12,13,-1}, /* 30 */	2210	{12, 13, -1}, /* 30 */
2255	{12,13,14}, /* 31 */	2211	{12, 13, 14}, /* 31 */
2256	{13,14,-1}, /* 32 */	2212	{13, 14, -1}, /* 32 */
2257	{14,15,-1}, /* 33 */	2213	{14, 15, -1}, /* 33 */
2258	{33,15,35}, /* 34 */	2214	{33, 15, 35}, /* 34 */
2259	{16,15,-1}, /* 35 */	2215	{16, 15, -1}, /* 35 */
2260	{17,16,-1}, /* 36 */	2216	{17, 16, -1}, /* 36 */
2261	{18,17,16}, /* 37 */	2217	{18, 17, 16}, /* 37 */
2262	{18,17,-1}, /* 38 */	2218	{18, 17, -1}, /* 38 */
2263	{18,19,-1}, /* 39 */	2219	{18, 19, -1}, /* 39 */
2264	{41,19,39}, /* 40 */	2220	{41, 19, 39}, /* 40 */
2265	{19,20,-1}, /* 41 */	2221	{19, 20, -1}, /* 41 */
2266	{20,21,-1}, /* 42 */	2222	{20, 21, -1}, /* 42 */
2267	{20,21,22}, /* 43 */	2223	{20, 21, 22}, /* 43 */
2268	{21,22,-1}, /* 44 */	2224	{21, 22, -1}, /* 44 */
2269	{23,22,-1}, /* 45 */	2225	{23, 22, -1}, /* 45 */
2270	{45,47,23}, /* 46 */	2226	{45, 47, 23}, /* 46 */
2271	{23,24,-1}, /* 47 */	2227	{23, 24, -1}, /* 47 */
2272	{24,9,-1}}; /* 48 */	2228	{24, 9, -1}
		2229	}; /* 48 */
2273		2230
2274	/* Recursive routine to step back and see if we can	2231	/* Recursive routine to step back and see if we can
2275	* find a path to that monster that we found. If not,	2232	* find a path to that monster that we found. If not,
2276	* we don't bother going toward it. Returns 1 if we	2233	* we don't bother going toward it. Returns 1 if we
2277	* can see a direct way to get it	2234	* can see a direct way to get it
2278	* Modified to be map tile aware -.MSW	2235	* Modified to be map tile aware -.MSW
2279	*/	2236	*/
2280		2237	int
2281
2282	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2238	can_see_monsterP (maptile *m, int x, int y, int dir)
		2239	{
2283	sint16 dx, dy;	2240	sint16 dx, dy;
2284	int mflags;	2241	int mflags;
2285		2242
		2243	if (dir < 0)
2286	if(dir<0) return 0; /* exit condition: invalid direction */	2244	return 0; /* exit condition: invalid direction */
2287		2245
2288	dx = x + freearr_x[dir];	2246	dx = x + freearr_x[dir];
2289	dy = y + freearr_y[dir];	2247	dy = y + freearr_y[dir];
2290		2248
2291	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2249	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2292		2250
2293	/* This functional arguably was incorrect before - it was	2251	/* This functional arguably was incorrect before - it was
2294	* checking for P_WALL - that was basically seeing if	2252	* checking for P_WALL - that was basically seeing if
2295	* we could move to the monster - this is being more	2253	* we could move to the monster - this is being more
2296	* literal on if we can see it. To know if we can actually	2254	* literal on if we can see it. To know if we can actually
2297	* move to the monster, we'd need the monster passed in or	2255	* move to the monster, we'd need the monster passed in or
2298	* at least its move type.	2256	* at least its move type.
2299	*/	2257	*/
2300	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2258	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2259	return 0;
2301		2260
2302	/* yes, can see. */	2261	/* yes, can see. */
2303	if(dir < 9) return 1;	2262	if (dir < 9)
		2263	return 1;
		2264
2304	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2265	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2305	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2266	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2306	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2267	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2307	}	2268	}
2308		2269
2309
2310
2311	/*	2270	/*
2312	* can_pick(picker, item): finds out if an object is possible to be	2271	* can_pick(picker, item): finds out if an object is possible to be
2313	* picked up by the picker. Returnes 1 if it can be	2272	* picked up by the picker. Returnes 1 if it can be
2314	* picked up, otherwise 0.	2273	* picked up, otherwise 0.
2315	*	2274	*
2316	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2275	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2317	* core dumps if they do.	2276	* core dumps if they do.
2318	*	2277	*
2319	* Add a check so we can't pick up invisible objects (0.93.8)	2278	* Add a check so we can't pick up invisible objects (0.93.8)
2320	*/	2279	*/
2321		2280	int
2322	int can_pick(const object *who, const object *item) {	2281	can_pick (const object *who, const object *item)
		2282	{
2323	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2283	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2324	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2284	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2325	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2285	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->is_player () || item->weight < who->weight / 3));
2326	(who->type==PLAYER||item->weight<who->weight/3));
2327	}	2286	}
2328
2329		2287
2330	/*	2288	/*
2331	* create clone from object to another	2289	* create clone from object to another
2332	*/	2290	*/
2333	object *object_create_clone (object *asrc) {	2291	object *
2334	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2292	object::deep_clone ()
		2293	{
		2294	assert (("deep_clone called on non-head object", is_head ()));
2335		2295
2336	if(!asrc) return NULL;	2296	object *dst = clone ();
2337	src = asrc;
2338	if(src->head)
2339	src = src->head;
2340		2297
2341	prev = NULL;	2298	object *prev = dst;
2342	for(part = src; part; part = part->more) {	2299	for (object *part = this->more; part; part = part->more)
2343	tmp = get_object();	2300	{
2344	copy_object(part,tmp);	2301	object *tmp = part->clone ();
2345	tmp->x -= src->x;
2346	tmp->y -= src->y;
2347	if(!part->head) {
2348	dst = tmp;
2349	tmp->head = NULL;
2350	} else {
2351	tmp->head = dst;	2302	tmp->head = dst;
2352	}
2353	tmp->more = NULL;
2354	if(prev)
2355	prev->more = tmp;	2303	prev->more = tmp;
2356	prev = tmp;	2304	prev = tmp;
2357	}	2305	}
2358	/*** copy inventory ***/	2306
2359	for(item = src->inv; item; item = item->below) {	2307	for (object *item = inv; item; item = item->below)
2360	(void) insert_ob_in_ob(object_create_clone(item),dst);	2308	insert_ob_in_ob (item->deep_clone (), dst);
2361	}
2362		2309
2363	return dst;	2310	return dst;
2364	}
2365
2366	/* return true if the object was destroyed, 0 otherwise */
2367	int was_destroyed (const object *op, tag_t old_tag)
2368	{
2369	/* checking for FLAG_FREED isn't necessary, but makes this function more
2370	* robust */
2371	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2372	}
2373
2374	/* GROS - Creates an object using a string representing its content. */
2375	/* Basically, we save the content of the string to a temp file, then call */
2376	/* load_object on it. I admit it is a highly inefficient way to make things, */
2377	/* but it was simple to make and allows reusing the load_object function. */
2378	/* Remember not to use load_object_str in a time-critical situation. */
2379	/* Also remember that multiparts objects are not supported for now. */
2380
2381	object* load_object_str(const char *obstr)
2382	{
2383	object *op;
2384	char filename[MAX_BUF];
2385	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);
2386
2387	FILE *tempfile=fopen(filename,"w");
2388	if (tempfile == NULL)
2389	{
2390	LOG(llevError,"Error - Unable to access load object temp file\n");
2391	return NULL;
2392	};
2393	fprintf(tempfile,obstr);
2394	fclose(tempfile);
2395
2396	op=get_object();
2397
2398	object_thawer thawer (filename);
2399
2400	if (thawer)
2401	load_object(thawer,op,0);
2402
2403	LOG(llevDebug," load str completed, object=%s\n", &op->name);
2404	CLEAR_FLAG(op,FLAG_REMOVED);
2405
2406	return op;
2407	}	2311	}
2408		2312
2409	/* This returns the first object in who's inventory that	2313	/* This returns the first object in who's inventory that
2410	* has the same type and subtype match.	2314	* has the same type and subtype match.
2411	* returns NULL if no match.	2315	* returns NULL if no match.
2412	*/	2316	*/
		2317	object *
2413	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2318	find_obj_by_type_subtype (const object *who, int type, int subtype)
2414	{	2319	{
2415	object *tmp;
2416
2417	for (tmp=who->inv; tmp; tmp=tmp->below)	2320	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2418	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2321	if (tmp->type == type && tmp->subtype == subtype)
		2322	return tmp;
2419		2323
2420	return NULL;	2324	return 0;
2421	}	2325	}
2422		2326
2423	/* If ob has a field named key, return the link from the list,	2327	shstr_tmp
2424	* otherwise return NULL.	2328	object::kv_get (shstr_tmp key) const
2425	*	2329	{
2426	* key must be a passed in shared string - otherwise, this won't	2330	for (key_value *kv = key_values; kv; kv = kv->next)
2427	* do the desired thing.	2331	if (kv->key == key)
2428	*/	2332	return kv->value;
2429	key_value * get_ob_key_link(const object * ob, const char * key) {	2333
2430	key_value * link;	2334	return shstr ();
		2335	}
		2336
		2337	void
		2338	object::kv_set (shstr_tmp key, shstr_tmp value)
		2339	{
		2340	for (key_value *kv = key_values; kv; kv = kv->next)
		2341	if (kv->key == key)
		2342	{
		2343	kv->value = value;
		2344	return;
		2345	}
		2346
		2347	key_value *kv = new key_value;
		2348
		2349	kv->next = key_values;
		2350	kv->key = key;
		2351	kv->value = value;
		2352
		2353	key_values = kv;
		2354	}
		2355
		2356	void
		2357	object::kv_del (shstr_tmp key)
		2358	{
		2359	for (key_value **kvp = &key_values; *kvp; kvp = &(*kvp)->next)
		2360	if ((*kvp)->key == key)
		2361	{
		2362	key_value *kv = *kvp;
		2363	*kvp = (*kvp)->next;
		2364	delete kv;
		2365	return;
		2366	}
		2367	}
		2368
		2369	object::depth_iterator::depth_iterator (object *container)
		2370	: iterator_base (container)
		2371	{
		2372	while (item->inv)
		2373	item = item->inv;
		2374	}
		2375
		2376	void
		2377	object::depth_iterator::next ()
		2378	{
		2379	if (item->below)
2431		2380	{
2432	for (link = ob->key_values; link != NULL; link = link->next) {	2381	item = item->below;
2433	if (link->key == key) {	2382
2434	return link;	2383	while (item->inv)
		2384	item = item->inv;
		2385	}
		2386	else
		2387	item = item->env;
		2388	}
		2389
		2390	const char *
		2391	object::flag_desc (char *desc, int len) const
		2392	{
		2393	char *p = desc;
		2394	bool first = true;
		2395
		2396	*p = 0;
		2397
		2398	for (int i = 0; i < NUM_FLAGS; i++)
		2399	{
		2400	if (len <= 10) // magic constant!
		2401	{
		2402	snprintf (p, len, ",...");
		2403	break;
2435	}	2404	}
2436	}
2437
2438	return NULL;
2439	}
2440		2405
2441	/*	2406	if (flag [i])
2442	* Returns the value of op has an extra_field for key, or NULL.
2443	*
2444	* The argument doesn't need to be a shared string.
2445	*
2446	* The returned string is shared.
2447	*/
2448	const char * get_ob_key_value(const object * op, const char * const key) {
2449	key_value * link;
2450	const char * canonical_key;
2451
2452	canonical_key = shstr::find (key);
2453
2454	if (canonical_key == NULL) {
2455	/* 1. There being a field named key on any object
2456	* implies there'd be a shared string to find.
2457	* 2. Since there isn't, no object has this field.
2458	* 3. Therefore, *this* object doesn't have this field.
2459	*/	2407	{
2460	return NULL;	2408	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
2461	}	2409	len -= cnt;
2462		2410	p += cnt;
2463	/* This is copied from get_ob_key_link() above -	2411	first = false;
2464	* only 4 lines, and saves the function call overhead.
2465	*/
2466	for (link = op->key_values; link != NULL; link = link->next) {
2467	if (link->key == canonical_key) {
2468	return link->value;
2469	}	2412	}
2470	}	2413	}
		2414
		2415	return desc;
		2416	}
		2417
		2418	// return a suitable string describing an object in enough detail to find it
		2419	const char *
		2420	object::debug_desc (char *info) const
		2421	{
		2422	char flagdesc[512];
		2423	char info2[256 * 4];
		2424	char *p = info;
		2425
		2426	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s%s,flags:[%s],type:%d}",
		2427	count,
		2428	uuid.c_str (),
		2429	&name,
		2430	title ? ",title:\"" : "",
		2431	title ? (const char *)title : "",
		2432	title ? "\"" : "",
		2433	flag_desc (flagdesc, 512), type);
		2434
		2435	if (!flag[FLAG_REMOVED] && env)
		2436	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2437
		2438	if (map)
		2439	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2440
		2441	return info;
		2442	}
		2443
		2444	const char *
		2445	object::debug_desc () const
		2446	{
		2447	static char info[3][256 * 4];
		2448	static int info_idx;
		2449
		2450	return debug_desc (info [++info_idx % 3]);
		2451	}
		2452
		2453	struct region *
		2454	object::region () const
		2455	{
		2456	return map ? map->region (x, y)
		2457	: region::default_region ();
		2458	}
		2459
		2460	const materialtype_t *
		2461	object::dominant_material () const
		2462	{
		2463	if (materialtype_t *mt = name_to_material (materialname))
		2464	return mt;
		2465
		2466	return name_to_material (shstr_unknown);
		2467	}
		2468
		2469	void
		2470	object::open_container (object *new_container)
		2471	{
		2472	if (container == new_container)
2471	return NULL;	2473	return;
2472	}
2473		2474
		2475	object *old_container = container;
2474		2476
2475	/*	2477	if (old_container)
2476	* Updates the canonical_key in op to value.
2477	*
2478	* canonical_key is a shared string (value doesn't have to be).
2479	*
2480	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2481	* keys.
2482	*
2483	* Returns TRUE on success.
2484	*/
2485	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {
2486	key_value * field = NULL, *last=NULL;
2487		2478	{
2488	for (field=op->key_values; field != NULL; field=field->next) {	2479	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
2489	if (field->key != canonical_key) {	2480	return;
2490	last = field;	2481
2491	continue;	2482	#if 0
		2483	// remove the "Close old_container" object.
		2484	if (object *closer = old_container->inv)
		2485	if (closer->type == CLOSE_CON)
		2486	closer->destroy ();
		2487	#endif
		2488
		2489	// make sure the container is available
		2490	esrv_send_item (this, old_container);
		2491
		2492	old_container->flag [FLAG_APPLIED] = false;
		2493	container = 0;
		2494
		2495	// client needs item update to make it work, client bug requires this to be separate
		2496	esrv_update_item (UPD_FLAGS, this, old_container);
		2497
		2498	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2499	play_sound (sound_find ("chest_close"));
		2500	}
		2501
		2502	if (new_container)
		2503	{
		2504	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2505	return;
		2506
		2507	// TODO: this does not seem to serve any purpose anymore?
		2508	#if 0
		2509	// insert the "Close Container" object.
		2510	if (archetype *closer = new_container->other_arch)
		2511	{
		2512	object *closer = arch_to_object (new_container->other_arch);
		2513	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2514	new_container->insert (closer);
2492	}	2515	}
		2516	#endif
		2517
		2518	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2519
		2520	// make sure the container is available, client bug requires this to be separate
		2521	esrv_send_item (this, new_container);
		2522
		2523	new_container->flag [FLAG_APPLIED] = true;
		2524	container = new_container;
		2525
		2526	// client needs flag change
		2527	esrv_update_item (UPD_FLAGS, this, new_container);
		2528	esrv_send_inventory (this, new_container);
		2529	play_sound (sound_find ("chest_open"));
2493		2530	}
2494	if (value)	2531	// else if (!old_container->env && contr && contr->ns)
2495	field->value = value;	2532	// contr->ns->floorbox_reset ();
2496	else {	2533	}
2497	/* Basically, if the archetype has this key set,
2498	* we need to store the null value so when we save
2499	* it, we save the empty value so that when we load,
2500	* we get this value back again.
2501	*/
2502	if (get_ob_key_link (&op->arch->clone, canonical_key))
2503	field->value = 0;
2504	else
2505	{
2506	if (last) last->next = field->next;
2507	else op->key_values = field->next;
2508		2534
2509	delete field;	2535	object *
2510	}	2536	object::force_find (shstr_tmp name)
2511	}	2537	{
2512	return TRUE;	2538	/* cycle through his inventory to look for the MARK we want to
2513	}	2539	* place
2514	/* IF we get here, key doesn't exist */	2540	*/
		2541	for (object *tmp = inv; tmp; tmp = tmp->below)
		2542	if (tmp->type == FORCE && tmp->slaying == name)
		2543	return splay (tmp);
2515		2544
2516	/* No field, we'll have to add it. */	2545	return 0;
		2546	}
		2547
		2548	object *
		2549	object::force_add (shstr_tmp name, int duration)
		2550	{
		2551	if (object *force = force_find (name))
		2552	force->destroy ();
		2553
		2554	object *force = get_archetype (FORCE_NAME);
		2555
		2556	force->slaying = name;
		2557	force->stats.food = 1;
		2558	force->speed_left = -1.f;
		2559
		2560	force->set_speed (duration ? 1.f / duration : 0.f);
		2561	force->flag [FLAG_IS_USED_UP] = true;
		2562	force->flag [FLAG_APPLIED] = true;
		2563
		2564	return insert (force);
		2565	}
		2566
		2567	void
		2568	object::play_sound (faceidx sound) const
		2569	{
		2570	if (!sound)
		2571	return;
		2572
		2573	if (is_on_map ())
		2574	map->play_sound (sound, x, y);
		2575	else if (object *pl = in_player ())
		2576	pl->contr->play_sound (sound);
		2577	}
		2578
		2579	void
		2580	object::say_msg (const char *msg) const
		2581	{
		2582	if (is_on_map ())
		2583	map->say_msg (msg, x, y);
		2584	else if (object *pl = in_player ())
		2585	pl->contr->play_sound (sound);
		2586	}
		2587
		2588	void
		2589	object::make_noise ()
		2590	{
		2591	// we do not model noise in the map, so instead put
		2592	// a temporary light into the noise source
		2593	// could use the map instead, but that's less reliable for our
		2594	// goal, which is to make invisibility a bit harder to exploit
		2595
		2596	// currently only works sensibly for players
		2597	if (!is_player ())
		2598	return;
		2599
		2600	// find old force, or create new one
		2601	object *force = force_find (shstr_noise_force);
		2602
		2603	if (force)
		2604	force->speed_left = -1.f; // patch old speed up
		2605	else
2517		2606	{
2518	if (!add_key) {	2607	force = archetype::get (shstr_noise_force);
2519	return FALSE;	2608
2520	}	2609	force->slaying = shstr_noise_force;
2521	/* There isn't any good reason to store a null	2610	force->stats.food = 1;
2522	* value in the key/value list. If the archetype has	2611	force->speed_left = -1.f;
2523	* this key, then we should also have it, so shouldn't	2612
2524	* be here. If user wants to store empty strings,	2613	force->set_speed (1.f / 4.f);
2525	* should pass in ""	2614	force->flag [FLAG_IS_USED_UP] = true;
2526	*/	2615	force->flag [FLAG_APPLIED] = true;
2527	if (value == NULL) return TRUE;	2616
		2617	insert (force);
2528		2618	}
2529	field = new key_value;
2530
2531	field->key = canonical_key;
2532	field->value = value;
2533	/* Usual prepend-addition. */
2534	field->next = op->key_values;
2535	op->key_values = field;
2536
2537	return TRUE;
2538	}	2619	}
2539		2620
2540	/*
2541	* Updates the key in op to value.
2542	*
2543	* If add_key is FALSE, this will only update existing keys,
2544	* and not add new ones.
2545	* In general, should be little reason FALSE is ever passed in for add_key
2546	*
2547	* Returns TRUE on success.
2548	*/
2549	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)
2550	{
2551	shstr key_ (key);
2552	return set_ob_key_value_s (op, key_, value, add_key);
2553	}

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