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Comparing deliantra/server/common/object.C (file contents):
Revision 1.72 by elmex, Tue Dec 19 15:30:01 2006 UTC vs.
Revision 1.205 by root, Sun Apr 13 01:34:08 2008 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
8	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
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	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,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	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
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20		21	* The authors can be reached via e-mail to <support@deliantra.net>
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/	22	*/
23		23
24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
25	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
26	variable. */	26	variable. */
27	#include <global.h>	27	#include <global.h>
28	#include <stdio.h>	28	#include <stdio.h>
29	#include <sys/types.h>	29	#include <sys/types.h>
30	#include <sys/uio.h>	30	#include <sys/uio.h>
31	#include <object.h>	31	#include <object.h>
32	#include <funcpoint.h>	32	#include <funcpoint.h>
		33	#include <sproto.h>
33	#include <loader.h>	34	#include <loader.h>
34		35
35	#include <bitset>	36	#include <bitset>
36		37
37	int nrofallocobjects = 0;	38	UUID UUID::cur;
38	static UUID uuid;	39	static uint64_t seq_next_save;
39	const uint64 UUID_SKIP = 1<<19;	40	static const uint64 UUID_GAP = 1<<19;
40		41
41	object *active_objects; /* List of active objects that need to be processed */	42	objectvec objects;
		43	activevec actives;
42		44
43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,	45	short freearr_x[SIZEOFFREE] = {
		46	0,
		47	0, 1, 1, 1, 0, -1, -1, -1,
		48	0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1	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
45	};	50	};
46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,	51	short freearr_y[SIZEOFFREE] = {
		52	0,
		53	-1, -1, 0, 1, 1, 1, 0, -1,
		54	-2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3	55	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
48	};	56	};
49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,	57	int maxfree[SIZEOFFREE] = {
		58	0,
		59	9, 10, 13, 14, 17, 18, 21, 22,
		60	25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45, 48,
50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49	61	49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
51	};	62	};
52	int freedir[SIZEOFFREE] = {	63	int freedir[SIZEOFFREE] = {
53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,	64	0,
		65	1, 2, 3, 4, 5, 6, 7, 8,
		66	1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8	67	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
55	};	68	};
56		69
57	static void	70	static void
58	write_uuid (void)	71	write_uuid (uval64 skip, bool sync)
59	{	72	{
60	char filename1[MAX_BUF], filename2[MAX_BUF];	73	CALL_BEGIN (2);
61		74	CALL_ARG_SV (newSVval64 (skip));
62	sprintf (filename1, "%s/uuid", settings.localdir);	75	CALL_ARG_SV (boolSV (sync));
63	sprintf (filename2, "%s/uuid~", settings.localdir);	76	CALL_CALL ("cf::write_uuid", G_DISCARD);
64		77	CALL_END;
65	FILE *fp;
66
67	if (!(fp = fopen (filename2, "w")))
68	{
69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
70	return;
71	}
72
73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
74	fclose (fp);
75	rename (filename2, filename1);
76	}	78	}
77		79
78	static void	80	static void
79	read_uuid (void)	81	read_uuid (void)
80	{	82	{
81	char filename[MAX_BUF];	83	char filename[MAX_BUF];
82		84
83	sprintf (filename, "%s/uuid", settings.localdir);	85	sprintf (filename, "%s/uuid", settings.localdir);
84		86
		87	seq_next_save = 0;
		88
85	FILE *fp;	89	FILE *fp;
86		90
87	if (!(fp = fopen (filename, "r")))	91	if (!(fp = fopen (filename, "r")))
88	{	92	{
89	if (errno == ENOENT)	93	if (errno == ENOENT)
90	{	94	{
91	LOG (llevInfo, "RESET uid to 1\n");	95	LOG (llevInfo, "RESET uid to 1\n");
92	uuid.seq = 0;	96	UUID::cur.seq = 0;
93	write_uuid ();	97	write_uuid (UUID_GAP, true);
94	return;	98	return;
95	}	99	}
96		100
97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);	101	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
98	_exit (1);	102	_exit (1);
99	}	103	}
100		104
101	int version;	105	UUID::BUF buf;
102	unsigned long long uid;	106	buf[0] = 0;
103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)	107	fgets (buf, sizeof (buf), fp);
		108
		109	if (!UUID::cur.parse (buf))
104	{	110	{
105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);	111	LOG (llevError, "FATAL: error reading uid from %s (%s)!\n", filename, buf);
106	_exit (1);	112	_exit (1);
107	}	113	}
108		114
109	uuid.seq = uid;	115	LOG (llevDebug, "read UUID: %s\n", UUID::cur.c_str ());
110	write_uuid ();	116
111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);	117	write_uuid (UUID_GAP, true);
112	fclose (fp);	118	fclose (fp);
113	}	119	}
114		120
115	UUID	121	UUID
116	gen_uuid ()	122	UUID::gen ()
117	{	123	{
118	UUID uid;	124	UUID uid;
119		125
120	uid.seq = ++uuid.seq;	126	uid.seq = ++cur.seq;
121		127
122	if (!(uuid.seq & (UUID_SKIP - 1)))	128	if (expect_false (cur.seq >= seq_next_save))
123	write_uuid ();	129	{
		130	seq_next_save = UUID::cur.seq + (UUID_GAP >> 1);
		131	write_uuid (UUID_GAP, false);
		132	}
		133
124		134
125	return uid;	135	return uid;
126	}	136	}
127		137
128	void	138	void
129	init_uuid ()	139	UUID::init ()
130	{	140	{
131	read_uuid ();	141	read_uuid ();
132	}	142	}
133		143
134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	144	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
135	static int	145	static bool
136	compare_ob_value_lists_one (const object *wants, const object *has)	146	compare_ob_value_lists_one (const object *wants, const object *has)
137	{	147	{
138	key_value *wants_field;	148	key_value *wants_field;
139		149
140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	150	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
141	* objects with lists are rare, and lists stay short. If not, use a	151	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	152	* different structure or at least keep the lists sorted...
143	*/	153	*/
144		154
145	/* For each field in wants, */	155	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	156	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
147	{	157	{
148	key_value *has_field;	158	key_value *has_field;
149		159
150	/* Look for a field in has with the same key. */	160	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);	161	has_field = get_ob_key_link (has, wants_field->key);
152		162
153	if (has_field == NULL)	163	if (!has_field)
154	{
155	/* No field with that name. */	164	return 0; /* No field with that name. */
156	return FALSE;
157	}
158		165
159	/* Found the matching field. */	166	/* Found the matching field. */
160	if (has_field->value != wants_field->value)	167	if (has_field->value != wants_field->value)
161	{
162	/* Values don't match, so this half of the comparison is false. */	168	return 0; /* Values don't match, so this half of the comparison is false. */
163	return FALSE;
164	}
165		169
166	/* If we get here, we found a match. Now for the next field in wants. */	170	/* If we get here, we found a match. Now for the next field in wants. */
167	}	171	}
168		172
169	/* If we get here, every field in wants has a matching field in has. */	173	/* If we get here, every field in wants has a matching field in has. */
170	return TRUE;	174	return 1;
171	}	175	}
172		176
173	/* Returns TRUE if ob1 has the same key_values as ob2. */	177	/* Returns TRUE if ob1 has the same key_values as ob2. */
174	static int	178	static bool
175	compare_ob_value_lists (const object *ob1, const object *ob2)	179	compare_ob_value_lists (const object *ob1, const object *ob2)
176	{	180	{
177	/* However, there may be fields in has which aren't partnered in wants,	181	/* However, there may be fields in has which aren't partnered in wants,
178	* so we need to run the comparison *twice*. :(	182	* so we need to run the comparison *twice*. :(
179	*/	183	*/
…		…
190	* Check nrof variable *before* calling can_merge()	194	* Check nrof variable *before* calling can_merge()
191	*	195	*
192	* Improvements made with merge: Better checking on potion, and also	196	* Improvements made with merge: Better checking on potion, and also
193	* check weight	197	* check weight
194	*/	198	*/
195
196	bool object::can_merge_slow (object *ob1, object *ob2)	199	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	200	{
198	/* A couple quicksanity checks */	201	/* A couple quicksanity checks */
199	if (ob1 == ob2	202	if (ob1 == ob2
200	|| ob1->type != ob2->type	203	|| ob1->type != ob2->type
201	|| ob1->speed != ob2->speed	204	|| ob1->speed != ob2->speed
202	|| ob1->value != ob2->value	205	|| ob1->value != ob2->value
203	|| ob1->name != ob2->name)	206	|| ob1->name != ob2->name)
204	return 0;	207	return 0;
205		208
206	//TODO: this ain't working well, use nicer and correct overflow check	209	/* Do not merge objects if nrof would overflow. First part checks
207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	210	* for unsigned overflow (2c), second part checks wether the result
208	* value could not be stored in a sint32 (which unfortunately sometimes is	211	* would fit into a 32 bit signed int, which is often used to hold
209	* used to store nrof).	212	* nrof values.
210	*/	213	*/
211	if (ob1->nrof + ob2->nrof >= 1UL << 31)	214	if (~ob1->nrof < ob2->nrof || ob1->nrof + ob2->nrof > (1UL << 31))
212	return 0;	215	return 0;
213		216
214	/* If the objects have been identified, set the BEEN_APPLIED flag.	217	/* If the objects have been identified, set the BEEN_APPLIED flag.
215	* This is to the comparison of the flags below will be OK. We	218	* This is to the comparison of the flags below will be OK. We
216	* just can't ignore the been applied or identified flags, as they	219	* just can't ignore the been applied or identified flags, as they
217	* are not equal - just if it has been identified, the been_applied	220	* are not equal - just if it has been identified, the been_applied
218	* flags lose any meaning.	221	* flags lose any meaning.
219	*/	222	*/
220	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob1, FLAG_IDENTIFIED))
221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
222		225
223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	226	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	227	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
225		228
226	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	229	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
227	|| ob1->arch != ob2->arch	230	|| ob1->arch != ob2->arch
228	|| ob1->name != ob2->name	231	|| ob1->name != ob2->name
229	|| ob1->title != ob2->title	232	|| ob1->title != ob2->title
230	|| ob1->msg != ob2->msg	233	|| ob1->msg != ob2->msg
231	|| ob1->weight != ob2->weight	234	|| ob1->weight != ob2->weight
…		…
248	|| ob1->move_off != ob2->move_off	251	|| ob1->move_off != ob2->move_off
249	|| ob1->move_slow != ob2->move_slow	252	|| ob1->move_slow != ob2->move_slow
250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)	253	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
251	return 0;	254	return 0;
252		255
253	/* This is really a spellbook check - really, we should	256	/* This is really a spellbook check - we should in general
254	* check all objects in the inventory.	257	* not merge objects with real inventories, as splitting them
		258	* is hard.
255	*/	259	*/
256	if (ob1->inv || ob2->inv)	260	if (ob1->inv || ob2->inv)
257	{	261	{
258	/* if one object has inventory but the other doesn't, not equiv */	262	if (!(ob1->inv && ob2->inv))
259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	263	return 0; /* inventories differ in length */
260	return 0;
261		264
262	/* Now check to see if the two inventory objects could merge */	265	if (ob1->inv->below || ob2->inv->below)
		266	return 0; /* more than one object in inv */
		267
263	if (!object::can_merge (ob1->inv, ob2->inv))	268	if (!object::can_merge (ob1->inv, ob2->inv))
264	return 0;	269	return 0; /* inventory objects differ */
265		270
266	/* inventory ok - still need to check rest of this object to see	271	/* inventory ok - still need to check rest of this object to see
267	* if it is valid.	272	* if it is valid.
268	*/	273	*/
269	}	274	}
…		…
277		282
278	/* Note sure why the following is the case - either the object has to	283	/* Note sure why the following is the case - either the object has to
279	* be animated or have a very low speed. Is this an attempted monster	284	* be animated or have a very low speed. Is this an attempted monster
280	* check?	285	* check?
281	*/	286	*/
282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	287	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
283	return 0;	288	return 0;
284		289
285	switch (ob1->type)	290	switch (ob1->type)
286	{	291	{
287	case SCROLL:	292	case SCROLL:
288	if (ob1->level != ob2->level)	293	if (ob1->level != ob2->level)
289	return 0;	294	return 0;
290	break;	295	break;
291	}	296	}
292		297
293	if (ob1->key_values != NULL || ob2->key_values != NULL)	298	if (ob1->key_values || ob2->key_values)
294	{	299	{
295	/* At least one of these has key_values. */	300	/* At least one of these has key_values. */
296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	301	if ((!ob1->key_values) != (!ob2->key_values))
297	/* One has fields, but the other one doesn't. */	302	/* One has fields, but the other one doesn't. */
298	return 0;	303	return 0;
299	else if (!compare_ob_value_lists (ob1, ob2))	304	else if (!compare_ob_value_lists (ob1, ob2))
300	return 0;	305	return 0;
301	}	306	}
302		307
303	//TODO: generate an event or call into perl for additional checks
304	if (ob1->self || ob2->self)	308	if (ob1->self || ob2->self)
305	{	309	{
306	ob1->optimise ();	310	ob1->optimise ();
307	ob2->optimise ();	311	ob2->optimise ();
308		312
309	if (ob1->self || ob2->self)	313	if (ob1->self || ob2->self)
		314	{
		315	int k1 = ob1->self ? HvTOTALKEYS (ob1->self) : 0;
		316	int k2 = ob2->self ? HvTOTALKEYS (ob2->self) : 0;
		317
		318	if (k1 != k2)
310	return 0;	319	return 0;
		320	else if (k1 == 0)
		321	return 1;
		322	else if (!cfperl_can_merge (ob1, ob2))
		323	return 0;
		324	}
311	}	325	}
312		326
313	/* Everything passes, must be OK. */	327	/* Everything passes, must be OK. */
314	return 1;	328	return 1;
315	}	329	}
…		…
323	sum_weight (object *op)	337	sum_weight (object *op)
324	{	338	{
325	long sum;	339	long sum;
326	object *inv;	340	object *inv;
327		341
328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)	342	for (sum = 0, inv = op->inv; inv; inv = inv->below)
329	{	343	{
330	if (inv->inv)	344	if (inv->inv)
331	sum_weight (inv);	345	sum_weight (inv);
		346
332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	347	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
333	}	348	}
334		349
335	if (op->type == CONTAINER && op->stats.Str)	350	if (op->type == CONTAINER && op->stats.Str)
336	sum = (sum * (100 - op->stats.Str)) / 100;	351	sum = (sum * (100 - op->stats.Str)) / 100;
…		…
352	op = op->env;	367	op = op->env;
353	return op;	368	return op;
354	}	369	}
355		370
356	/*	371	/*
357	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
358	* a better check. We basically keeping traversing up until we can't
359	* or find a player.
360	*/
361
362	object *
363	is_player_inv (object *op)
364	{
365	for (; op != NULL && op->type != PLAYER; op = op->env)
366	if (op->env == op)
367	op->env = NULL;
368	return op;
369	}
370
371	/*
372	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	372	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
373	* Some error messages.	373	* Some error messages.
374	* The result of the dump is stored in the static global errmsg array.	374	* The result of the dump is stored in the static global errmsg array.
375	*/	375	*/
376
377	char *	376	char *
378	dump_object (object *op)	377	dump_object (object *op)
379	{	378	{
380	if (!op)	379	if (!op)
381	return strdup ("[NULLOBJ]");	380	return strdup ("[NULLOBJ]");
382		381
383	object_freezer freezer;	382	object_freezer freezer;
384	save_object (freezer, op, 3);	383	op->write (freezer);
385	return freezer.as_string ();	384	return freezer.as_string ();
386	}	385	}
387		386
388	/*	387	/*
389	* get_nearest_part(multi-object, object 2) returns the part of the	388	* get_nearest_part(multi-object, object 2) returns the part of the
390	* multi-object 1 which is closest to the second object.	389	* multi-object 1 which is closest to the second object.
391	* If it's not a multi-object, it is returned.	390	* If it's not a multi-object, it is returned.
392	*/	391	*/
393
394	object *	392	object *
395	get_nearest_part (object *op, const object *pl)	393	get_nearest_part (object *op, const object *pl)
396	{	394	{
397	object *tmp, *closest;	395	object *tmp, *closest;
398	int last_dist, i;	396	int last_dist, i;
…		…
406	}	404	}
407		405
408	/*	406	/*
409	* Returns the object which has the count-variable equal to the argument.	407	* Returns the object which has the count-variable equal to the argument.
410	*/	408	*/
411
412	object *	409	object *
413	find_object (tag_t i)	410	find_object (tag_t i)
414	{	411	{
415	for (object *op = object::first; op; op = op->next)	412	for_all_objects (op)
416	if (op->count == i)	413	if (op->count == i)
417	return op;	414	return op;
418		415
419	return 0;	416	return 0;
420	}	417	}
421		418
422	/*	419	/*
423	* Returns the first object which has a name equal to the argument.	420	* Returns the first object which has a name equal to the argument.
424	* Used only by the patch command, but not all that useful.	421	* Used only by the patch command, but not all that useful.
425	* Enables features like "patch <name-of-other-player> food 999"	422	* Enables features like "patch <name-of-other-player> food 999"
426	*/	423	*/
427
428	object *	424	object *
429	find_object_name (const char *str)	425	find_object_name (const char *str)
430	{	426	{
431	shstr_cmp str_ (str);	427	shstr_cmp str_ (str);
432	object *op;	428	object *op;
433		429
434	for (op = object::first; op != NULL; op = op->next)	430	for_all_objects (op)
435	if (op->name == str_)	431	if (op->name == str_)
436	break;	432	break;
437		433
438	return op;	434	return op;
439	}	435	}
440		436
441	void
442	free_all_object_data ()
443	{
444	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
445	}
446
447	/*	437	/*
448	* Sets the owner and sets the skill and exp pointers to owner's current	438	* Sets the owner and sets the skill and exp pointers to owner's current
449	* skill and experience objects.	439	* skill and experience objects.
		440	* ACTUALLY NO! investigate! TODO
450	*/	441	*/
451	void	442	void
452	object::set_owner (object *owner)	443	object::set_owner (object *owner)
453	{	444	{
		445	// allow objects which own objects
454	if (!owner)	446	if (owner)
455	return;
456
457	/* next line added to allow objects which own objects */
458	/* Add a check for ownercounts in here, as I got into an endless loop
459	* with the fireball owning a poison cloud which then owned the
460	* fireball. I believe that was caused by one of the objects getting
461	* freed and then another object replacing it. Since the ownercounts
462	* didn't match, this check is valid and I believe that cause is valid.
463	*/
464	while (owner->owner)	447	while (owner->owner)
465	owner = owner->owner;	448	owner = owner->owner;
		449
		450	if (flag [FLAG_FREED])
		451	{
		452	LOG (llevError | logBacktrace, "tried to set owner of %s to %s\n", debug_desc (), owner->debug_desc ());
		453	return;
		454	}
466		455
467	this->owner = owner;	456	this->owner = owner;
		457	}
		458
		459	int
		460	object::slottype () const
		461	{
		462	if (type == SKILL)
		463	{
		464	if (IS_COMBAT_SKILL (subtype)) return slot_combat;
		465	if (IS_RANGED_SKILL (subtype)) return slot_ranged;
		466	}
		467	else
		468	{
		469	if (slot [body_combat].info) return slot_combat;
		470	if (slot [body_range ].info) return slot_ranged;
		471	}
		472
		473	return slot_none;
		474	}
		475
		476	bool
		477	object::change_weapon (object *ob)
		478	{
		479	if (current_weapon == ob)
		480	return true;
		481
		482	if (chosen_skill)
		483	chosen_skill->flag [FLAG_APPLIED] = false;
		484
		485	current_weapon = ob;
		486	chosen_skill = !ob || ob->type == SKILL ? ob : find_skill_by_name (this, ob->skill);
		487
		488	if (chosen_skill)
		489	chosen_skill->flag [FLAG_APPLIED] = true;
		490
		491	update_stats ();
		492
		493	if (ob)
		494	{
		495	// now check wether any body locations became invalid, in which case
		496	// we cannot apply the weapon at the moment.
		497	for (int i = 0; i < NUM_BODY_LOCATIONS; ++i)
		498	if (slot[i].used < 0)
		499	{
		500	current_weapon = chosen_skill = 0;
		501	update_stats ();
		502
		503	new_draw_info_format (NDI_UNIQUE, 0, this,
		504	"You try to balance all your items at once, "
		505	"but the %s is just too much for your body. "
		506	"[You need to unapply some items first.]", &ob->name);
		507	return false;
		508	}
		509
		510	//new_draw_info_format (NDI_UNIQUE, 0, this, "You switch to your %s.", &ob->name);
		511	}
		512	else
		513	;//new_draw_info_format (NDI_UNIQUE, 0, this, "You unwield your weapons.");
		514
		515	if (ob && !ob->flag [FLAG_APPLIED] && ob->type != SPELL)
		516	{
		517	LOG (llevError | logBacktrace, "%s changed to unapplied weapon %s",
		518	&name, ob->debug_desc ());
		519	return false;
		520	}
		521
		522	return true;
468	}	523	}
469		524
470	/* Zero the key_values on op, decrementing the shared-string	525	/* Zero the key_values on op, decrementing the shared-string
471	* refcounts and freeing the links.	526	* refcounts and freeing the links.
472	*/	527	*/
473	static void	528	static void
474	free_key_values (object *op)	529	free_key_values (object *op)
475	{	530	{
476	for (key_value *i = op->key_values; i != 0;)	531	for (key_value *i = op->key_values; i; )
477	{	532	{
478	key_value *next = i->next;	533	key_value *next = i->next;
479	delete i;	534	delete i;
480		535
481	i = next;	536	i = next;
482	}	537	}
483		538
484	op->key_values = 0;	539	op->key_values = 0;
485	}	540	}
486		541
487	void object::clear ()	542	object &
		543	object::operator =(const object &src)
488	{	544	{
489	attachable_base::clear ();	545	bool is_freed = flag [FLAG_FREED];
		546	bool is_removed = flag [FLAG_REMOVED];
490		547
491	free_key_values (this);
492
493	owner = 0;
494	name = 0;
495	name_pl = 0;
496	title = 0;
497	race = 0;
498	slaying = 0;
499	skill = 0;
500	msg = 0;
501	lore = 0;
502	custom_name = 0;
503	materialname = 0;
504	contr = 0;
505	below = 0;
506	above = 0;
507	inv = 0;
508	container = 0;
509	env = 0;
510	more = 0;
511	head = 0;
512	map = 0;
513	active_next = 0;
514	active_prev = 0;
515
516	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
517
518	SET_FLAG (this, FLAG_REMOVED);
519
520	/* What is not cleared is next, prev, and count */
521
522	expmul = 1.0;
523	face = blank_face;
524
525	if (settings.casting_time)
526	casting_time = -1;
527	}
528
529	/*
530	* copy_to first frees everything allocated by the dst object,
531	* and then copies the contents of itself into the second
532	* object, allocating what needs to be allocated. Basically, any
533	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
534	* if the first object is freed, the pointers in the new object
535	* will point at garbage.
536	*/
537	void
538	object::copy_to (object *dst)
539	{
540	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
541	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
542
543	*(object_copy *)dst = *this;	548	*(object_copy *)this = src;
544	*(object_pod *)dst = *this;
545		549
546	if (self || cb)	550	flag [FLAG_FREED] = is_freed;
547	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));	551	flag [FLAG_REMOVED] = is_removed;
548
549	if (is_freed)
550	SET_FLAG (dst, FLAG_FREED);
551
552	if (is_removed)
553	SET_FLAG (dst, FLAG_REMOVED);
554
555	if (speed < 0)
556	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
557		552
558	/* Copy over key_values, if any. */	553	/* Copy over key_values, if any. */
559	if (key_values)	554	if (src.key_values)
560	{	555	{
561	key_value *tail = 0;	556	key_value *tail = 0;
562	key_value *i;
563
564	dst->key_values = 0;	557	key_values = 0;
565		558
566	for (i = key_values; i; i = i->next)	559	for (key_value *i = src.key_values; i; i = i->next)
567	{	560	{
568	key_value *new_link = new key_value;	561	key_value *new_link = new key_value;
569		562
570	new_link->next = 0;	563	new_link->next = 0;
571	new_link->key = i->key;	564	new_link->key = i->key;
572	new_link->value = i->value;	565	new_link->value = i->value;
573		566
574	/* Try and be clever here, too. */	567	/* Try and be clever here, too. */
575	if (!dst->key_values)	568	if (!key_values)
576	{	569	{
577	dst->key_values = new_link;	570	key_values = new_link;
578	tail = new_link;	571	tail = new_link;
579	}	572	}
580	else	573	else
581	{	574	{
582	tail->next = new_link;	575	tail->next = new_link;
583	tail = new_link;	576	tail = new_link;
584	}	577	}
585	}	578	}
586	}	579	}
		580	}
587		581
588	update_ob_speed (dst);	582	/*
		583	* copy_to first frees everything allocated by the dst object,
		584	* and then copies the contents of itself into the second
		585	* object, allocating what needs to be allocated. Basically, any
		586	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
		587	* if the first object is freed, the pointers in the new object
		588	* will point at garbage.
		589	*/
		590	void
		591	object::copy_to (object *dst)
		592	{
		593	*dst = *this;
		594
		595	if (speed < 0)
		596	dst->speed_left -= rndm ();
		597
		598	dst->set_speed (dst->speed);
		599	}
		600
		601	void
		602	object::instantiate ()
		603	{
		604	if (!uuid.seq) // HACK
		605	uuid = UUID::gen ();
		606
		607	speed_left = -0.1f;
		608	/* copy the body_info to the body_used - this is only really
		609	* need for monsters, but doesn't hurt to do it for everything.
		610	* by doing so, when a monster is created, it has good starting
		611	* values for the body_used info, so when items are created
		612	* for it, they can be properly equipped.
		613	*/
		614	for (int i = NUM_BODY_LOCATIONS; i--; )
		615	slot[i].used = slot[i].info;
		616
		617	attachable::instantiate ();
589	}	618	}
590		619
591	object *	620	object *
592	object::clone ()	621	object::clone ()
593	{	622	{
…		…
599	/*	628	/*
600	* If an object with the IS_TURNABLE() flag needs to be turned due	629	* If an object with the IS_TURNABLE() flag needs to be turned due
601	* to the closest player being on the other side, this function can	630	* to the closest player being on the other side, this function can
602	* be called to update the face variable, _and_ how it looks on the map.	631	* be called to update the face variable, _and_ how it looks on the map.
603	*/	632	*/
604
605	void	633	void
606	update_turn_face (object *op)	634	update_turn_face (object *op)
607	{	635	{
608	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	636	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
609	return;	637	return;
		638
610	SET_ANIMATION (op, op->direction);	639	SET_ANIMATION (op, op->direction);
611	update_object (op, UP_OBJ_FACE);	640	update_object (op, UP_OBJ_FACE);
612	}	641	}
613		642
614	/*	643	/*
615	* Updates the speed of an object. If the speed changes from 0 to another	644	* Updates the speed of an object. If the speed changes from 0 to another
616	* value, or vice versa, then add/remove the object from the active list.	645	* value, or vice versa, then add/remove the object from the active list.
617	* This function needs to be called whenever the speed of an object changes.	646	* This function needs to be called whenever the speed of an object changes.
618	*/	647	*/
619	void	648	void
620	update_ob_speed (object *op)	649	object::set_speed (float speed)
621	{	650	{
622	extern int arch_init;	651	if (flag [FLAG_FREED] && speed)
623
624	/* No reason putting the archetypes objects on the speed list,
625	* since they never really need to be updated.
626	*/
627
628	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
629	{	652	{
630	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	653	LOG (llevError, "Object %s is freed but has speed.\n", &name);
631	#ifdef MANY_CORES
632	abort ();
633	#else
634	op->speed = 0;	654	speed = 0;
635	#endif
636	}
637
638	if (arch_init)
639	return;
640
641	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
642	{	655	}
643	/* If already on active list, don't do anything */
644	if (op->active_next || op->active_prev || op == active_objects)
645	return;
646		656
647	/* process_events() expects us to insert the object at the beginning	657	this->speed = speed;
648	* of the list. */
649	op->active_next = active_objects;
650		658
651	if (op->active_next != NULL)	659	if (has_active_speed ())
652	op->active_next->active_prev = op;	660	activate ();
653
654	active_objects = op;
655	}
656	else	661	else
657	{	662	deactivate ();
658	/* If not on the active list, nothing needs to be done */
659	if (!op->active_next && !op->active_prev && op != active_objects)
660	return;
661
662	if (op->active_prev == NULL)
663	{
664	active_objects = op->active_next;
665
666	if (op->active_next != NULL)
667	op->active_next->active_prev = NULL;
668	}
669	else
670	{
671	op->active_prev->active_next = op->active_next;
672
673	if (op->active_next)
674	op->active_next->active_prev = op->active_prev;
675	}
676
677	op->active_next = NULL;
678	op->active_prev = NULL;
679	}
680	}	663	}
681		664
682	/* This function removes object 'op' from the list of active
683	* objects.
684	* This should only be used for style maps or other such
685	* reference maps where you don't want an object that isn't
686	* in play chewing up cpu time getting processed.
687	* The reverse of this is to call update_ob_speed, which
688	* will do the right thing based on the speed of the object.
689	*/
690	void
691	remove_from_active_list (object *op)
692	{
693	/* If not on the active list, nothing needs to be done */
694	if (!op->active_next && !op->active_prev && op != active_objects)
695	return;
696
697	if (op->active_prev == NULL)
698	{
699	active_objects = op->active_next;
700	if (op->active_next != NULL)
701	op->active_next->active_prev = NULL;
702	}
703	else
704	{
705	op->active_prev->active_next = op->active_next;
706	if (op->active_next)
707	op->active_next->active_prev = op->active_prev;
708	}
709	op->active_next = NULL;
710	op->active_prev = NULL;
711	}
712
713	/*	665	/*
714	* update_object() updates the array which represents the map.	666	* update_object() updates the the map.
715	* It takes into account invisible objects (and represent squares covered	667	* It takes into account invisible objects (and represent squares covered
716	* by invisible objects by whatever is below them (unless it's another	668	* by invisible objects by whatever is below them (unless it's another
717	* invisible object, etc...)	669	* invisible object, etc...)
718	* If the object being updated is beneath a player, the look-window	670	* If the object being updated is beneath a player, the look-window
719	* of that player is updated (this might be a suboptimal way of	671	* of that player is updated (this might be a suboptimal way of
720	* updating that window, though, since update_object() is called _often_)	672	* updating that window, though, since update_object() is called _often_)
721	*	673	*
722	* action is a hint of what the caller believes need to be done.	674	* action is a hint of what the caller believes need to be done.
723	* For example, if the only thing that has changed is the face (due to
724	* an animation), we don't need to call update_position until that actually
725	* comes into view of a player. OTOH, many other things, like addition/removal
726	* of walls or living creatures may need us to update the flags now.
727	* current action are:	675	* current action are:
728	* UP_OBJ_INSERT: op was inserted	676	* UP_OBJ_INSERT: op was inserted
729	* UP_OBJ_REMOVE: op was removed	677	* UP_OBJ_REMOVE: op was removed
730	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	678	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
731	* as that is easier than trying to look at what may have changed.	679	* as that is easier than trying to look at what may have changed.
732	* UP_OBJ_FACE: only the objects face has changed.	680	* UP_OBJ_FACE: only the objects face has changed.
733	*/	681	*/
734
735	void	682	void
736	update_object (object *op, int action)	683	update_object (object *op, int action)
737	{	684	{
738	int update_now = 0, flags;
739	MoveType move_on, move_off, move_block, move_slow;
740
741	if (op == NULL)	685	if (op == NULL)
742	{	686	{
743	/* this should never happen */	687	/* this should never happen */
744	LOG (llevDebug, "update_object() called for NULL object.\n");	688	LOG (llevDebug, "update_object() called for NULL object.\n");
745	return;	689	return;
746	}	690	}
747		691
748	if (op->env != NULL)	692	if (op->env)
749	{	693	{
750	/* Animation is currently handled by client, so nothing	694	/* Animation is currently handled by client, so nothing
751	* to do in this case.	695	* to do in this case.
752	*/	696	*/
753	return;	697	return;
…		…
758	*/	702	*/
759	if (!op->map || op->map->in_memory == MAP_SAVING)	703	if (!op->map || op->map->in_memory == MAP_SAVING)
760	return;	704	return;
761		705
762	/* make sure the object is within map boundaries */	706	/* make sure the object is within map boundaries */
763	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	707	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
764	{	708	{
765	LOG (llevError, "update_object() called for object out of map!\n");	709	LOG (llevError, "update_object() called for object out of map!\n");
766	#ifdef MANY_CORES	710	#ifdef MANY_CORES
767	abort ();	711	abort ();
768	#endif	712	#endif
769	return;	713	return;
770	}	714	}
771		715
772	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	716	mapspace &m = op->ms ();
773	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
774	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
775	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
776	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
777	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
778		717
		718	if (!(m.flags_ & P_UPTODATE))
		719	/* nop */;
779	if (action == UP_OBJ_INSERT)	720	else if (action == UP_OBJ_INSERT)
780	{	721	{
		722	// this is likely overkill, TODO: revisit (schmorp)
781	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	723	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
782	update_now = 1;
783
784	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	724	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
785	update_now = 1;	725	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
786		726	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		727	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
787	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	728	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
788	update_now = 1;
789
790	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
791	update_now = 1;
792
793	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
794	update_now = 1;
795
796	if ((move_on | op->move_on) != move_on)	729	|| (m.move_on | op->move_on ) != m.move_on
797	update_now = 1;
798
799	if ((move_off | op->move_off) != move_off)	730	|| (m.move_off | op->move_off ) != m.move_off
800	update_now = 1;	731	|| (m.move_slow | op->move_slow) != m.move_slow
801
802	/* This isn't perfect, but I don't expect a lot of objects to	732	/* This isn't perfect, but I don't expect a lot of objects to
803	* to have move_allow right now.	733	* to have move_allow right now.
804	*/	734	*/
805	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	735	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
806	update_now = 1;	736	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
807		737	m.flags_ = 0;
808	if ((move_slow | op->move_slow) != move_slow)
809	update_now = 1;
810	}	738	}
811
812	/* if the object is being removed, we can't make intelligent	739	/* if the object is being removed, we can't make intelligent
813	* decisions, because remove_ob can't really pass the object	740	* decisions, because remove_ob can't really pass the object
814	* that is being removed.	741	* that is being removed.
815	*/	742	*/
816	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	743	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
817	update_now = 1;	744	m.flags_ = 0;
818	else if (action == UP_OBJ_FACE)	745	else if (action == UP_OBJ_FACE)
819	/* Nothing to do for that case */ ;	746	/* Nothing to do for that case */ ;
820	else	747	else
821	LOG (llevError, "update_object called with invalid action: %d\n", action);	748	LOG (llevError, "update_object called with invalid action: %d\n", action);
822		749
823	if (update_now)
824	{
825	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
826	update_position (op->map, op->x, op->y);
827	}
828
829	if (op->more != NULL)	750	if (op->more)
830	update_object (op->more, action);	751	update_object (op->more, action);
831	}
832
833	object::vector object::mortals;
834	object::vector object::objects; // not yet used
835	object *object::first;
836
837	void object::free_mortals ()
838	{
839	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
840	if ((*i)->refcnt)
841	++i; // further delay freeing
842	else
843	{
844	delete *i;
845	mortals.erase (i);
846	}
847	}	752	}
848		753
849	object::object ()	754	object::object ()
850	{	755	{
851	SET_FLAG (this, FLAG_REMOVED);	756	SET_FLAG (this, FLAG_REMOVED);
…		…
854	face = blank_face;	759	face = blank_face;
855	}	760	}
856		761
857	object::~object ()	762	object::~object ()
858	{	763	{
		764	unlink ();
		765
859	free_key_values (this);	766	free_key_values (this);
860	}	767	}
861		768
		769	static int object_count;
		770
862	void object::link ()	771	void object::link ()
863	{	772	{
		773	assert (!index);//D
		774	uuid = UUID::gen ();
864	count = ++ob_count;	775	count = ++object_count;
865	uuid = gen_uuid ();
866		776
867	prev = 0;	777	refcnt_inc ();
868	next = object::first;	778	objects.insert (this);
869
870	if (object::first)
871	object::first->prev = this;
872
873	object::first = this;
874	}	779	}
875		780
876	void object::unlink ()	781	void object::unlink ()
877	{	782	{
878	if (this == object::first)	783	if (!index)
879	object::first = next;	784	return;
880		785
881	/* Remove this object from the list of used objects */	786	objects.erase (this);
882	if (prev) prev->next = next;	787	refcnt_dec ();
883	if (next) next->prev = prev;	788	}
884		789
885	prev = 0;	790	void
886	next = 0;	791	object::activate ()
		792	{
		793	/* If already on active list, don't do anything */
		794	if (active)
		795	return;
		796
		797	if (has_active_speed ())
		798	actives.insert (this);
		799	}
		800
		801	void
		802	object::activate_recursive ()
		803	{
		804	activate ();
		805
		806	for (object *op = inv; op; op = op->below)
		807	op->activate_recursive ();
		808	}
		809
		810	/* This function removes object 'op' from the list of active
		811	* objects.
		812	* This should only be used for style maps or other such
		813	* reference maps where you don't want an object that isn't
		814	* in play chewing up cpu time getting processed.
		815	* The reverse of this is to call update_ob_speed, which
		816	* will do the right thing based on the speed of the object.
		817	*/
		818	void
		819	object::deactivate ()
		820	{
		821	/* If not on the active list, nothing needs to be done */
		822	if (!active)
		823	return;
		824
		825	actives.erase (this);
		826	}
		827
		828	void
		829	object::deactivate_recursive ()
		830	{
		831	for (object *op = inv; op; op = op->below)
		832	op->deactivate_recursive ();
		833
		834	deactivate ();
		835	}
		836
		837	void
		838	object::set_flag_inv (int flag, int value)
		839	{
		840	for (object *op = inv; op; op = op->below)
		841	{
		842	op->flag [flag] = value;
		843	op->set_flag_inv (flag, value);
		844	}
		845	}
		846
		847	/*
		848	* Remove and free all objects in the inventory of the given object.
		849	* object.c ?
		850	*/
		851	void
		852	object::destroy_inv (bool drop_to_ground)
		853	{
		854	// need to check first, because the checks below might segfault
		855	// as we might be on an invalid mapspace and crossfire code
		856	// is too buggy to ensure that the inventory is empty.
		857	// corollary: if you create arrows etc. with stuff in tis inventory,
		858	// cf will crash below with off-map x and y
		859	if (!inv)
		860	return;
		861
		862	/* Only if the space blocks everything do we not process -
		863	* if some form of movement is allowed, let objects
		864	* drop on that space.
		865	*/
		866	if (!drop_to_ground
		867	|| !map
		868	|| map->in_memory != MAP_IN_MEMORY
		869	|| map->nodrop
		870	|| ms ().move_block == MOVE_ALL)
		871	{
		872	while (inv)
		873	{
		874	inv->destroy_inv (drop_to_ground);
		875	inv->destroy ();
		876	}
		877	}
		878	else
		879	{ /* Put objects in inventory onto this space */
		880	while (inv)
		881	{
		882	object *op = inv;
		883
		884	if (op->flag [FLAG_STARTEQUIP]
		885	|| op->flag [FLAG_NO_DROP]
		886	|| op->type == RUNE
		887	|| op->type == TRAP
		888	|| op->flag [FLAG_IS_A_TEMPLATE]
		889	|| op->flag [FLAG_DESTROY_ON_DEATH])
		890	op->destroy ();
		891	else
		892	map->insert (op, x, y);
		893	}
		894	}
887	}	895	}
888		896
889	object *object::create ()	897	object *object::create ()
890	{	898	{
891	object *op = new object;	899	object *op = new object;
892	op->link ();	900	op->link ();
893	return op;	901	return op;
894	}	902	}
895		903
896	/*	904	void
897	* free_object() frees everything allocated by an object, removes	905	object::do_destroy ()
898	* it from the list of used objects, and puts it on the list of
899	* free objects. The IS_FREED() flag is set in the object.
900	* The object must have been removed by remove_ob() first for
901	* this function to succeed.
902	*
903	* If destroy_inventory is set, free inventory as well. Else drop items in
904	* inventory to the ground.
905	*/
906	void object::destroy (bool destroy_inventory)
907	{	906	{
908	if (QUERY_FLAG (this, FLAG_FREED))	907	attachable::do_destroy ();
909	return;
910		908
911	if (QUERY_FLAG (this, FLAG_FRIENDLY))	909	if (flag [FLAG_IS_LINKED])
		910	remove_button_link (this);
		911
		912	if (flag [FLAG_FRIENDLY])
912	remove_friendly_object (this);	913	remove_friendly_object (this);
913		914
914	if (!QUERY_FLAG (this, FLAG_REMOVED))	915	if (!flag [FLAG_REMOVED])
915	remove ();	916	remove ();
916		917
917	SET_FLAG (this, FLAG_FREED);	918	destroy_inv (true);
918		919
919	if (more)	920	deactivate ();
920	{	921	unlink ();
921	more->destroy (destroy_inventory);
922	more = 0;
923	}
924		922
925	if (inv)	923	flag [FLAG_FREED] = 1;
926	{
927	/* Only if the space blocks everything do we not process -
928	* if some form of movement is allowed, let objects
929	* drop on that space.
930	*/
931	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
932	{
933	object *op = inv;
934
935	while (op)
936	{
937	object *tmp = op->below;
938	op->destroy (destroy_inventory);
939	op = tmp;
940	}
941	}
942	else
943	{ /* Put objects in inventory onto this space */
944	object *op = inv;
945
946	while (op)
947	{
948	object *tmp = op->below;
949
950	op->remove ();
951
952	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
953	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
954	op->destroy ();
955	else
956	{
957	op->x = x;
958	op->y = y;
959	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
960	}
961
962	op = tmp;
963	}
964	}
965	}
966		924
967	// hack to ensure that freed objects still have a valid map	925	// hack to ensure that freed objects still have a valid map
968	{	926	{
969	static maptile *freed_map; // freed objects are moved here to avoid crashes	927	static maptile *freed_map; // freed objects are moved here to avoid crashes
970		928
971	if (!freed_map)	929	if (!freed_map)
972	{	930	{
973	freed_map = new maptile;	931	freed_map = new maptile;
974		932
		933	freed_map->path = "<freed objects map>";
975	freed_map->name = "/internal/freed_objects_map";	934	freed_map->name = "/internal/freed_objects_map";
976	freed_map->width = 3;	935	freed_map->width = 3;
977	freed_map->height = 3;	936	freed_map->height = 3;
		937	freed_map->nodrop = 1;
978		938
979	freed_map->allocate ();	939	freed_map->alloc ();
		940	freed_map->in_memory = MAP_IN_MEMORY;
980	}	941	}
981		942
982	map = freed_map;	943	map = freed_map;
983	x = 1;	944	x = 1;
984	y = 1;	945	y = 1;
985	}	946	}
986		947
		948	if (more)
		949	{
		950	more->destroy ();
		951	more = 0;
		952	}
		953
		954	head = 0;
		955
987	// clear those pointers that likely might have circular references to us	956	// clear those pointers that likely might cause circular references
988	owner = 0;	957	owner = 0;
989	enemy = 0;	958	enemy = 0;
990	attacked_by = 0;	959	attacked_by = 0;
		960	current_weapon = 0;
		961	}
991		962
992	// only relevant for players(?), but make sure of it anyways	963	void
993	contr = 0;	964	object::destroy (bool destroy_inventory)
		965	{
		966	if (destroyed ())
		967	return;
994		968
995	/* Remove object from the active list */	969	if (destroy_inventory)
996	speed = 0;	970	destroy_inv (false);
997	update_ob_speed (this);
998		971
999	unlink ();	972	if (is_head ())
		973	if (sound_destroy)
		974	play_sound (sound_destroy);
		975	else if (flag [FLAG_MONSTER])
		976	play_sound (sound_find ("monster_destroy")); // quick hack, too lazy to create a generic mechanism
1000		977
1001	mortals.push_back (this);	978	attachable::destroy ();
1002	}	979	}
1003		980
1004	/*	981	/*
1005	* sub_weight() recursively (outwards) subtracts a number from the	982	* sub_weight() recursively (outwards) subtracts a number from the
1006	* weight of an object (and what is carried by it's environment(s)).	983	* weight of an object (and what is carried by it's environment(s)).
…		…
1022	* This function removes the object op from the linked list of objects	999	* This function removes the object op from the linked list of objects
1023	* which it is currently tied to. When this function is done, the	1000	* which it is currently tied to. When this function is done, the
1024	* object will have no environment. If the object previously had an	1001	* object will have no environment. If the object previously had an
1025	* environment, the x and y coordinates will be updated to	1002	* environment, the x and y coordinates will be updated to
1026	* the previous environment.	1003	* the previous environment.
1027	* Beware: This function is called from the editor as well!
1028	*/	1004	*/
1029	void	1005	void
1030	object::remove ()	1006	object::do_remove ()
1031	{	1007	{
1032	object *tmp, *last = 0;	1008	object *tmp, *last = 0;
1033	object *otmp;	1009	object *otmp;
1034		1010
1035	int check_walk_off;
1036
1037	if (QUERY_FLAG (this, FLAG_REMOVED))	1011	if (QUERY_FLAG (this, FLAG_REMOVED))
1038	return;	1012	return;
1039		1013
1040	SET_FLAG (this, FLAG_REMOVED);	1014	SET_FLAG (this, FLAG_REMOVED);
		1015	INVOKE_OBJECT (REMOVE, this);
1041		1016
1042	if (more)	1017	if (more)
1043	more->remove ();	1018	more->remove ();
1044		1019
1045	/*	1020	/*
…		…
1055		1030
1056	/* NO_FIX_PLAYER is set when a great many changes are being	1031	/* NO_FIX_PLAYER is set when a great many changes are being
1057	* made to players inventory. If set, avoiding the call	1032	* made to players inventory. If set, avoiding the call
1058	* to save cpu time.	1033	* to save cpu time.
1059	*/	1034	*/
1060	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1035	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1061	fix_player (otmp);	1036	otmp->update_stats ();
1062		1037
1063	if (above != NULL)	1038	if (above)
1064	above->below = below;	1039	above->below = below;
1065	else	1040	else
1066	env->inv = below;	1041	env->inv = below;
1067		1042
1068	if (below != NULL)	1043	if (below)
1069	below->above = above;	1044	below->above = above;
1070		1045
1071	/* we set up values so that it could be inserted into	1046	/* we set up values so that it could be inserted into
1072	* the map, but we don't actually do that - it is up	1047	* the map, but we don't actually do that - it is up
1073	* to the caller to decide what we want to do.	1048	* to the caller to decide what we want to do.
…		…
1077	above = 0, below = 0;	1052	above = 0, below = 0;
1078	env = 0;	1053	env = 0;
1079	}	1054	}
1080	else if (map)	1055	else if (map)
1081	{	1056	{
1082	/* Re did the following section of code - it looks like it had	1057	if (type == PLAYER)
1083	* lots of logic for things we no longer care about
1084	*/	1058	{
		1059	// leaving a spot always closes any open container on the ground
		1060	if (container && !container->env)
		1061	// this causes spurious floorbox updates, but it ensures
		1062	// that the CLOSE event is being sent.
		1063	close_container ();
		1064
		1065	--map->players;
		1066	map->touch ();
		1067	}
		1068
		1069	map->dirty = true;
		1070	mapspace &ms = this->ms ();
1085		1071
1086	/* link the object above us */	1072	/* link the object above us */
1087	if (above)	1073	if (above)
1088	above->below = below;	1074	above->below = below;
1089	else	1075	else
1090	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */	1076	ms.top = below; /* we were top, set new top */
1091		1077
1092	/* Relink the object below us, if there is one */	1078	/* Relink the object below us, if there is one */
1093	if (below)	1079	if (below)
1094	below->above = above;	1080	below->above = above;
1095	else	1081	else
…		…
1097	/* Nothing below, which means we need to relink map object for this space	1083	/* Nothing below, which means we need to relink map object for this space
1098	* use translated coordinates in case some oddness with map tiling is	1084	* use translated coordinates in case some oddness with map tiling is
1099	* evident	1085	* evident
1100	*/	1086	*/
1101	if (GET_MAP_OB (map, x, y) != this)	1087	if (GET_MAP_OB (map, x, y) != this)
1102	{
1103	char *dump = dump_object (this);
1104	LOG (llevError,
1105	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);	1088	LOG (llevError, "remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom? %s\n", debug_desc ());
1106	free (dump);
1107	dump = dump_object (GET_MAP_OB (map, x, y));
1108	LOG (llevError, "%s\n", dump);
1109	free (dump);
1110	}
1111		1089
1112	SET_MAP_OB (map, x, y, above); /* goes on above it. */	1090	ms.bot = above; /* goes on above it. */
1113	}	1091	}
1114		1092
1115	above = 0;	1093	above = 0;
1116	below = 0;	1094	below = 0;
1117		1095
1118	if (map->in_memory == MAP_SAVING)	1096	if (map->in_memory == MAP_SAVING)
1119	return;	1097	return;
1120		1098
1121	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1099	int check_walk_off = !flag [FLAG_NO_APPLY];
1122		1100
		1101	if (object *pl = ms.player ())
		1102	{
		1103	if (pl->container == this)
		1104	/* If a container that the player is currently using somehow gets
		1105	* removed (most likely destroyed), update the player view
		1106	* appropriately.
		1107	*/
		1108	pl->close_container ();
		1109
		1110	pl->contr->ns->floorbox_update ();
		1111	}
		1112
1123	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1113	for (tmp = ms.bot; tmp; tmp = tmp->above)
1124	{	1114	{
1125	/* No point updating the players look faces if he is the object	1115	/* No point updating the players look faces if he is the object
1126	* being removed.	1116	* being removed.
1127	*/	1117	*/
1128		1118
1129	if (tmp->type == PLAYER && tmp != this)
1130	{
1131	/* If a container that the player is currently using somehow gets
1132	* removed (most likely destroyed), update the player view
1133	* appropriately.
1134	*/
1135	if (tmp->container == this)
1136	{
1137	CLEAR_FLAG (this, FLAG_APPLIED);
1138	tmp->container = 0;
1139	}
1140
1141	tmp->contr->socket->floorbox_update ();
1142	}
1143
1144	/* See if player moving off should effect something */	1119	/* See if object moving off should effect something */
1145	if (check_walk_off	1120	if (check_walk_off
1146	&& ((move_type & tmp->move_off)	1121	&& ((move_type & tmp->move_off)
1147	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1122	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1148	{	1123	{
1149	move_apply (tmp, this, 0);	1124	move_apply (tmp, this, 0);
1150		1125
1151	if (destroyed ())	1126	if (destroyed ())
1152	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1127	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1153	}	1128	}
1154		1129
1155	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1156
1157	if (tmp->above == tmp)
1158	tmp->above = 0;
1159
1160	last = tmp;	1130	last = tmp;
1161	}	1131	}
1162		1132
1163	/* last == NULL of there are no objects on this space */	1133	/* last == NULL if there are no objects on this space */
		1134	//TODO: this makes little sense, why only update the topmost object?
1164	if (!last)	1135	if (!last)
1165	{	1136	map->at (x, y).flags_ = 0;
1166	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1167	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1168	* those out anyways, and if there are any flags set right now, they won't
1169	* be correct anyways.
1170	*/
1171	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1172	update_position (map, x, y);
1173	}
1174	else	1137	else
1175	update_object (last, UP_OBJ_REMOVE);	1138	update_object (last, UP_OBJ_REMOVE);
1176		1139
1177	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)	1140	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1178	update_all_los (map, x, y);	1141	update_all_los (map, x, y);
1179	}	1142	}
1180	}	1143	}
1181		1144
1182	/*	1145	/*
…		…
1191	merge_ob (object *op, object *top)	1154	merge_ob (object *op, object *top)
1192	{	1155	{
1193	if (!op->nrof)	1156	if (!op->nrof)
1194	return 0;	1157	return 0;
1195		1158
1196	if (top == NULL)	1159	if (!top)
1197	for (top = op; top != NULL && top->above != NULL; top = top->above);	1160	for (top = op; top && top->above; top = top->above)
		1161	;
1198		1162
1199	for (; top != NULL; top = top->below)	1163	for (; top; top = top->below)
1200	{	1164	{
1201	if (top == op)	1165	if (top == op)
1202	continue;	1166	continue;
1203		1167
1204	if (object::can_merge (op, top))	1168	if (object::can_merge (op, top))
…		…
1213	}	1177	}
1214		1178
1215	return 0;	1179	return 0;
1216	}	1180	}
1217		1181
		1182	void
		1183	object::expand_tail ()
		1184	{
		1185	if (more)
		1186	return;
		1187
		1188	object *prev = this;
		1189
		1190	for (archetype *at = (archetype *)arch->more; at; at = (archetype *)at->more)
		1191	{
		1192	object *op = arch_to_object (at);
		1193
		1194	op->name = name;
		1195	op->name_pl = name_pl;
		1196	op->title = title;
		1197
		1198	op->head = this;
		1199	prev->more = op;
		1200
		1201	prev = op;
		1202	}
		1203	}
		1204
1218	/*	1205	/*
1219	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1206	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1220	* job preparing multi-part monsters	1207	* job preparing multi-part monsters.
1221	*/	1208	*/
1222	object *	1209	object *
1223	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1210	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1224	{	1211	{
1225	object *tmp;
1226
1227	if (op->head)
1228	op = op->head;
1229
1230	for (tmp = op; tmp; tmp = tmp->more)	1212	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1231	{	1213	{
1232	tmp->x = x + tmp->arch->clone.x;	1214	tmp->x = x + tmp->arch->x;
1233	tmp->y = y + tmp->arch->clone.y;	1215	tmp->y = y + tmp->arch->y;
1234	}	1216	}
1235		1217
1236	return insert_ob_in_map (op, m, originator, flag);	1218	return insert_ob_in_map (op, m, originator, flag);
1237	}	1219	}
1238		1220
…		…
1254	* Return value:	1236	* Return value:
1255	* new object if 'op' was merged with other object	1237	* new object if 'op' was merged with other object
1256	* NULL if 'op' was destroyed	1238	* NULL if 'op' was destroyed
1257	* just 'op' otherwise	1239	* just 'op' otherwise
1258	*/	1240	*/
1259
1260	object *	1241	object *
1261	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1242	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1262	{	1243	{
		1244	assert (!op->flag [FLAG_FREED]);
		1245
1263	object *tmp, *top, *floor = NULL;	1246	object *top, *floor = NULL;
1264	sint16 x, y;
1265		1247
1266	if (QUERY_FLAG (op, FLAG_FREED))	1248	op->remove ();
1267	{
1268	LOG (llevError, "Trying to insert freed object!\n");
1269	return NULL;
1270	}
1271
1272	if (m == NULL)
1273	{
1274	char *dump = dump_object (op);
1275	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1276	free (dump);
1277	return op;
1278	}
1279
1280	if (out_of_map (m, op->x, op->y))
1281	{
1282	char *dump = dump_object (op);
1283	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1284	#ifdef MANY_CORES
1285	/* Better to catch this here, as otherwise the next use of this object
1286	* is likely to cause a crash. Better to find out where it is getting
1287	* improperly inserted.
1288	*/
1289	abort ();
1290	#endif
1291	free (dump);
1292	return op;
1293	}
1294
1295	if (!QUERY_FLAG (op, FLAG_REMOVED))
1296	{
1297	char *dump = dump_object (op);
1298	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1299	free (dump);
1300	return op;
1301	}
1302
1303	if (op->more != NULL)
1304	{
1305	/* The part may be on a different map. */
1306
1307	object *more = op->more;
1308
1309	/* We really need the caller to normalize coordinates - if
1310	* we set the map, that doesn't work if the location is within
1311	* a map and this is straddling an edge. So only if coordinate
1312	* is clear wrong do we normalize it.
1313	*/
1314	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1315	more->map = get_map_from_coord (m, &more->x, &more->y);
1316	else if (!more->map)
1317	{
1318	/* For backwards compatibility - when not dealing with tiled maps,
1319	* more->map should always point to the parent.
1320	*/
1321	more->map = m;
1322	}
1323
1324	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1325	{
1326	if (!op->head)
1327	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1328
1329	return NULL;
1330	}
1331	}
1332
1333	CLEAR_FLAG (op, FLAG_REMOVED);
1334		1249
1335	/* Ideally, the caller figures this out. However, it complicates a lot	1250	/* Ideally, the caller figures this out. However, it complicates a lot
1336	* of areas of callers (eg, anything that uses find_free_spot would now	1251	* of areas of callers (eg, anything that uses find_free_spot would now
1337	* need extra work	1252	* need extra work
1338	*/	1253	*/
1339	op->map = get_map_from_coord (m, &op->x, &op->y);	1254	if (!xy_normalise (m, op->x, op->y))
1340	x = op->x;	1255	{
1341	y = op->y;	1256	op->destroy ();
		1257	return 0;
		1258	}
		1259
		1260	if (object *more = op->more)
		1261	if (!insert_ob_in_map (more, m, originator, flag))
		1262	return 0;
		1263
		1264	CLEAR_FLAG (op, FLAG_REMOVED);
		1265
		1266	op->map = m;
		1267	mapspace &ms = op->ms ();
1342		1268
1343	/* this has to be done after we translate the coordinates.	1269	/* this has to be done after we translate the coordinates.
1344	*/	1270	*/
1345	if (op->nrof && !(flag & INS_NO_MERGE))	1271	if (op->nrof && !(flag & INS_NO_MERGE))
1346	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1272	for (object *tmp = ms.bot; tmp; tmp = tmp->above)
1347	if (object::can_merge (op, tmp))	1273	if (object::can_merge (op, tmp))
1348	{	1274	{
1349	op->nrof += tmp->nrof;	1275	op->nrof += tmp->nrof;
1350	tmp->destroy ();	1276	tmp->destroy ();
1351	}	1277	}
…		…
1368	op->below = originator->below;	1294	op->below = originator->below;
1369		1295
1370	if (op->below)	1296	if (op->below)
1371	op->below->above = op;	1297	op->below->above = op;
1372	else	1298	else
1373	SET_MAP_OB (op->map, op->x, op->y, op);	1299	ms.bot = op;
1374		1300
1375	/* since *below* originator, no need to update top */	1301	/* since *below* originator, no need to update top */
1376	originator->below = op;	1302	originator->below = op;
1377	}	1303	}
1378	else	1304	else
1379	{	1305	{
		1306	top = ms.bot;
		1307
1380	/* If there are other objects, then */	1308	/* If there are other objects, then */
1381	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1309	if (top)
1382	{	1310	{
1383	object *last = NULL;	1311	object *last = 0;
1384		1312
1385	/*	1313	/*
1386	* If there are multiple objects on this space, we do some trickier handling.	1314	* If there are multiple objects on this space, we do some trickier handling.
1387	* We've already dealt with merging if appropriate.	1315	* We've already dealt with merging if appropriate.
1388	* Generally, we want to put the new object on top. But if	1316	* Generally, we want to put the new object on top. But if
…		…
1392	* once we get to them. This reduces the need to traverse over all of	1320	* once we get to them. This reduces the need to traverse over all of
1393	* them when adding another one - this saves quite a bit of cpu time	1321	* them when adding another one - this saves quite a bit of cpu time
1394	* when lots of spells are cast in one area. Currently, it is presumed	1322	* when lots of spells are cast in one area. Currently, it is presumed
1395	* that flying non pickable objects are spell objects.	1323	* that flying non pickable objects are spell objects.
1396	*/	1324	*/
1397		1325	for (top = ms.bot; top; top = top->above)
1398	while (top != NULL)
1399	{	1326	{
1400	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1327	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1401	floor = top;	1328	floor = top;
1402		1329
1403	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1330	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1406	top = top->below;	1333	top = top->below;
1407	break;	1334	break;
1408	}	1335	}
1409		1336
1410	last = top;	1337	last = top;
1411	top = top->above;
1412	}	1338	}
1413		1339
1414	/* Don't want top to be NULL, so set it to the last valid object */	1340	/* Don't want top to be NULL, so set it to the last valid object */
1415	top = last;	1341	top = last;
1416		1342
…		…
1418	* looks like instead of lots of conditions here.	1344	* looks like instead of lots of conditions here.
1419	* makes things faster, and effectively the same result.	1345	* makes things faster, and effectively the same result.
1420	*/	1346	*/
1421		1347
1422	/* Have object 'fall below' other objects that block view.	1348	/* Have object 'fall below' other objects that block view.
1423	* Unless those objects are exits, type 66	1349	* Unless those objects are exits.
1424	* If INS_ON_TOP is used, don't do this processing	1350	* If INS_ON_TOP is used, don't do this processing
1425	* Need to find the object that in fact blocks view, otherwise	1351	* Need to find the object that in fact blocks view, otherwise
1426	* stacking is a bit odd.	1352	* stacking is a bit odd.
1427	*/	1353	*/
1428	if (!(flag & INS_ON_TOP) &&	1354	if (!(flag & INS_ON_TOP)
1429	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1355	&& ms.flags () & P_BLOCKSVIEW
		1356	&& (op->face && !faces [op->face].visibility))
1430	{	1357	{
1431	for (last = top; last != floor; last = last->below)	1358	for (last = top; last != floor; last = last->below)
1432	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1359	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1433	break;	1360	break;
		1361
1434	/* Check to see if we found the object that blocks view,	1362	/* Check to see if we found the object that blocks view,
1435	* and make sure we have a below pointer for it so that	1363	* and make sure we have a below pointer for it so that
1436	* we can get inserted below this one, which requires we	1364	* we can get inserted below this one, which requires we
1437	* set top to the object below us.	1365	* set top to the object below us.
1438	*/	1366	*/
1439	if (last && last->below && last != floor)	1367	if (last && last->below && last != floor)
1440	top = last->below;	1368	top = last->below;
1441	}	1369	}
1442	} /* If objects on this space */	1370	} /* If objects on this space */
1443		1371
1444	if (flag & INS_MAP_LOAD)
1445	top = GET_MAP_TOP (op->map, op->x, op->y);
1446
1447	if (flag & INS_ABOVE_FLOOR_ONLY)	1372	if (flag & INS_ABOVE_FLOOR_ONLY)
1448	top = floor;	1373	top = floor;
1449		1374
1450	/* Top is the object that our object (op) is going to get inserted above.	1375	/* Top is the object that our object (op) is going to get inserted above.
1451	*/	1376	*/
1452		1377
1453	/* First object on this space */	1378	/* First object on this space */
1454	if (!top)	1379	if (!top)
1455	{	1380	{
1456	op->above = GET_MAP_OB (op->map, op->x, op->y);	1381	op->above = ms.bot;
1457		1382
1458	if (op->above)	1383	if (op->above)
1459	op->above->below = op;	1384	op->above->below = op;
1460		1385
1461	op->below = NULL;	1386	op->below = 0;
1462	SET_MAP_OB (op->map, op->x, op->y, op);	1387	ms.bot = op;
1463	}	1388	}
1464	else	1389	else
1465	{ /* get inserted into the stack above top */	1390	{ /* get inserted into the stack above top */
1466	op->above = top->above;	1391	op->above = top->above;
1467		1392
…		…
1470		1395
1471	op->below = top;	1396	op->below = top;
1472	top->above = op;	1397	top->above = op;
1473	}	1398	}
1474		1399
1475	if (op->above == NULL)	1400	if (!op->above)
1476	SET_MAP_TOP (op->map, op->x, op->y, op);	1401	ms.top = op;
1477	} /* else not INS_BELOW_ORIGINATOR */	1402	} /* else not INS_BELOW_ORIGINATOR */
1478		1403
1479	if (op->type == PLAYER)	1404	if (op->type == PLAYER)
		1405	{
1480	op->contr->do_los = 1;	1406	op->contr->do_los = 1;
		1407	++op->map->players;
		1408	op->map->touch ();
		1409	}
1481		1410
1482	/* If we have a floor, we know the player, if any, will be above	1411	op->map->dirty = true;
1483	* it, so save a few ticks and start from there.	1412
1484	*/	1413	if (object *pl = ms.player ())
1485	if (!(flag & INS_MAP_LOAD))
1486	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1487	if (tmp->type == PLAYER)
1488	tmp->contr->socket->floorbox_update ();	1414	pl->contr->ns->floorbox_update ();
1489		1415
1490	/* If this object glows, it may affect lighting conditions that are	1416	/* If this object glows, it may affect lighting conditions that are
1491	* visible to others on this map. But update_all_los is really	1417	* visible to others on this map. But update_all_los is really
1492	* an inefficient way to do this, as it means los for all players	1418	* an inefficient way to do this, as it means los for all players
1493	* on the map will get recalculated. The players could very well	1419	* on the map will get recalculated. The players could very well
1494	* be far away from this change and not affected in any way -	1420	* be far away from this change and not affected in any way -
1495	* this should get redone to only look for players within range,	1421	* this should get redone to only look for players within range,
1496	* or just updating the P_NEED_UPDATE for spaces within this area	1422	* or just updating the P_UPTODATE for spaces within this area
1497	* of effect may be sufficient.	1423	* of effect may be sufficient.
1498	*/	1424	*/
1499	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1425	if (op->map->darkness && (op->glow_radius != 0))
1500	update_all_los (op->map, op->x, op->y);	1426	update_all_los (op->map, op->x, op->y);
1501		1427
1502	/* updates flags (blocked, alive, no magic, etc) for this map space */	1428	/* updates flags (blocked, alive, no magic, etc) for this map space */
1503	update_object (op, UP_OBJ_INSERT);	1429	update_object (op, UP_OBJ_INSERT);
		1430
		1431	INVOKE_OBJECT (INSERT, op);
1504		1432
1505	/* Don't know if moving this to the end will break anything. However,	1433	/* Don't know if moving this to the end will break anything. However,
1506	* we want to have floorbox_update called before calling this.	1434	* we want to have floorbox_update called before calling this.
1507	*	1435	*
1508	* check_move_on() must be after this because code called from	1436	* check_move_on() must be after this because code called from
…		…
1510	* blocked() and wall() work properly), and these flags are updated by	1438	* blocked() and wall() work properly), and these flags are updated by
1511	* update_object().	1439	* update_object().
1512	*/	1440	*/
1513		1441
1514	/* if this is not the head or flag has been passed, don't check walk on status */	1442	/* if this is not the head or flag has been passed, don't check walk on status */
1515	if (!(flag & INS_NO_WALK_ON) && !op->head)	1443	if (!(flag & INS_NO_WALK_ON) && op->head_ () == op)
1516	{	1444	{
1517	if (check_move_on (op, originator))	1445	if (check_move_on (op, originator))
1518	return NULL;	1446	return 0;
1519		1447
1520	/* If we are a multi part object, lets work our way through the check	1448	/* If we are a multi part object, lets work our way through the check
1521	* walk on's.	1449	* walk on's.
1522	*/	1450	*/
1523	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1451	for (object *tmp = op->more; tmp; tmp = tmp->more)
1524	if (check_move_on (tmp, originator))	1452	if (check_move_on (tmp, originator))
1525	return NULL;	1453	return 0;
1526	}	1454	}
1527		1455
1528	return op;	1456	return op;
1529	}	1457	}
1530		1458
1531	/* this function inserts an object in the map, but if it	1459	/* this function inserts an object in the map, but if it
1532	* finds an object of its own type, it'll remove that one first.	1460	* finds an object of its own type, it'll remove that one first.
1533	* op is the object to insert it under: supplies x and the map.	1461	* op is the object to insert it under: supplies x and the map.
1534	*/	1462	*/
1535	void	1463	void
1536	replace_insert_ob_in_map (const char *arch_string, object *op)	1464	replace_insert_ob_in_map (const char *arch_string, object *op)
1537	{	1465	{
1538	object *	1466	object *tmp, *tmp1;
1539	tmp;
1540	object *
1541	tmp1;
1542		1467
1543	/* first search for itself and remove any old instances */	1468	/* first search for itself and remove any old instances */
1544		1469
1545	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1470	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1546	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1471	if (!strcmp (tmp->arch->archname, arch_string)) /* same archetype */
1547	tmp->destroy ();	1472	tmp->destroy ();
1548		1473
1549	tmp1 = arch_to_object (archetype::find (arch_string));	1474	tmp1 = arch_to_object (archetype::find (arch_string));
1550		1475
1551	tmp1->x = op->x;	1476	tmp1->x = op->x;
1552	tmp1->y = op->y;	1477	tmp1->y = op->y;
1553	insert_ob_in_map (tmp1, op->map, op, 0);	1478	insert_ob_in_map (tmp1, op->map, op, 0);
		1479	}
		1480
		1481	object *
		1482	object::insert_at (object *where, object *originator, int flags)
		1483	{
		1484	if (where->env)
		1485	return where->env->insert (this);
		1486	else
		1487	return where->map->insert (this, where->x, where->y, originator, flags);
1554	}	1488	}
1555		1489
1556	/*	1490	/*
1557	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1491	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1558	* is returned contains nr objects, and the remaining parts contains	1492	* is returned contains nr objects, and the remaining parts contains
1559	* the rest (or is removed and freed if that number is 0).	1493	* the rest (or is removed and freed if that number is 0).
1560	* On failure, NULL is returned, and the reason put into the	1494	* On failure, NULL is returned, and the reason put into the
1561	* global static errmsg array.	1495	* global static errmsg array.
1562	*/	1496	*/
1563
1564	object *	1497	object *
1565	get_split_ob (object *orig_ob, uint32 nr)	1498	get_split_ob (object *orig_ob, uint32 nr)
1566	{	1499	{
1567	object *newob;	1500	object *newob;
1568	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1501	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
…		…
1599	* the amount of an object. If the amount reaches 0, the object	1532	* the amount of an object. If the amount reaches 0, the object
1600	* is subsequently removed and freed.	1533	* is subsequently removed and freed.
1601	*	1534	*
1602	* Return value: 'op' if something is left, NULL if the amount reached 0	1535	* Return value: 'op' if something is left, NULL if the amount reached 0
1603	*/	1536	*/
1604
1605	object *	1537	object *
1606	decrease_ob_nr (object *op, uint32 i)	1538	decrease_ob_nr (object *op, uint32 i)
1607	{	1539	{
1608	object *tmp;	1540	object *tmp;
1609	player *pl;
1610		1541
1611	if (i == 0) /* objects with op->nrof require this check */	1542	if (i == 0) /* objects with op->nrof require this check */
1612	return op;	1543	return op;
1613		1544
1614	if (i > op->nrof)	1545	if (i > op->nrof)
1615	i = op->nrof;	1546	i = op->nrof;
1616		1547
1617	if (QUERY_FLAG (op, FLAG_REMOVED))	1548	if (QUERY_FLAG (op, FLAG_REMOVED))
1618	op->nrof -= i;	1549	op->nrof -= i;
1619	else if (op->env != NULL)	1550	else if (op->env)
1620	{	1551	{
1621	/* is this object in the players inventory, or sub container	1552	/* is this object in the players inventory, or sub container
1622	* therein?	1553	* therein?
1623	*/	1554	*/
1624	tmp = is_player_inv (op->env);	1555	tmp = op->in_player ();
1625	/* nope. Is this a container the player has opened?	1556	/* nope. Is this a container the player has opened?
1626	* If so, set tmp to that player.	1557	* If so, set tmp to that player.
1627	* IMO, searching through all the players will mostly	1558	* IMO, searching through all the players will mostly
1628	* likely be quicker than following op->env to the map,	1559	* likely be quicker than following op->env to the map,
1629	* and then searching the map for a player.	1560	* and then searching the map for a player.
1630	*/	1561	*/
1631	if (!tmp)	1562	if (!tmp)
1632	{	1563	for_all_players (pl)
1633	for (pl = first_player; pl; pl = pl->next)
1634	if (pl->ob->container == op->env)	1564	if (pl->ob->container == op->env)
		1565	{
		1566	tmp = pl->ob;
1635	break;	1567	break;
1636	if (pl)
1637	tmp = pl->ob;
1638	else
1639	tmp = NULL;
1640	}	1568	}
1641		1569
1642	if (i < op->nrof)	1570	if (i < op->nrof)
1643	{	1571	{
1644	sub_weight (op->env, op->weight * i);	1572	sub_weight (op->env, op->weight * i);
1645	op->nrof -= i;	1573	op->nrof -= i;
1646	if (tmp)	1574	if (tmp)
1647	{
1648	esrv_send_item (tmp, op);	1575	esrv_send_item (tmp, op);
1649	}
1650	}	1576	}
1651	else	1577	else
1652	{	1578	{
1653	op->remove ();	1579	op->remove ();
1654	op->nrof = 0;	1580	op->nrof = 0;
1655	if (tmp)	1581	if (tmp)
1656	{
1657	esrv_del_item (tmp->contr, op->count);	1582	esrv_del_item (tmp->contr, op->count);
1658	}
1659	}	1583	}
1660	}	1584	}
1661	else	1585	else
1662	{	1586	{
1663	object *above = op->above;	1587	object *above = op->above;
…		…
1669	op->remove ();	1593	op->remove ();
1670	op->nrof = 0;	1594	op->nrof = 0;
1671	}	1595	}
1672		1596
1673	/* Since we just removed op, op->above is null */	1597	/* Since we just removed op, op->above is null */
1674	for (tmp = above; tmp != NULL; tmp = tmp->above)	1598	for (tmp = above; tmp; tmp = tmp->above)
1675	if (tmp->type == PLAYER)	1599	if (tmp->type == PLAYER)
1676	{	1600	{
1677	if (op->nrof)	1601	if (op->nrof)
1678	esrv_send_item (tmp, op);	1602	esrv_send_item (tmp, op);
1679	else	1603	else
…		…
1684	if (op->nrof)	1608	if (op->nrof)
1685	return op;	1609	return op;
1686	else	1610	else
1687	{	1611	{
1688	op->destroy ();	1612	op->destroy ();
1689	return NULL;	1613	return 0;
1690	}	1614	}
1691	}	1615	}
1692		1616
1693	/*	1617	/*
1694	* add_weight(object, weight) adds the specified weight to an object,	1618	* add_weight(object, weight) adds the specified weight to an object,
1695	* and also updates how much the environment(s) is/are carrying.	1619	* and also updates how much the environment(s) is/are carrying.
1696	*/	1620	*/
1697
1698	void	1621	void
1699	add_weight (object *op, signed long weight)	1622	add_weight (object *op, signed long weight)
1700	{	1623	{
1701	while (op != NULL)	1624	while (op != NULL)
1702	{	1625	{
…		…
1717	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);	1640	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
1718	free (dump);	1641	free (dump);
1719	return op;	1642	return op;
1720	}	1643	}
1721		1644
1722	if (where->head)	1645	if (where->head_ () != where)
1723	{	1646	{
1724	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");	1647	LOG (llevError | logBacktrace, "Warning: Tried to insert object into wrong part of multipart object.\n");
1725	where = where->head;	1648	where = where->head;
1726	}	1649	}
1727		1650
1728	return where->insert (op);	1651	return where->insert (op);
1729	}	1652	}
…		…
1734	* inside the object environment.	1657	* inside the object environment.
1735	*	1658	*
1736	* The function returns now pointer to inserted item, and return value can	1659	* The function returns now pointer to inserted item, and return value can
1737	* be != op, if items are merged. -Tero	1660	* be != op, if items are merged. -Tero
1738	*/	1661	*/
1739
1740	object *	1662	object *
1741	object::insert (object *op)	1663	object::insert (object *op)
1742	{	1664	{
1743	object *tmp, *otmp;
1744
1745	if (!QUERY_FLAG (op, FLAG_REMOVED))	1665	if (!QUERY_FLAG (op, FLAG_REMOVED))
1746	op->remove ();	1666	op->remove ();
1747		1667
1748	if (op->more)	1668	if (op->more)
1749	{	1669	{
…		…
1751	return op;	1671	return op;
1752	}	1672	}
1753		1673
1754	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1674	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1755	CLEAR_FLAG (op, FLAG_REMOVED);	1675	CLEAR_FLAG (op, FLAG_REMOVED);
		1676
1756	if (op->nrof)	1677	if (op->nrof)
1757	{	1678	{
1758	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1679	for (object *tmp = inv; tmp; tmp = tmp->below)
1759	if (object::can_merge (tmp, op))	1680	if (object::can_merge (tmp, op))
1760	{	1681	{
1761	/* return the original object and remove inserted object	1682	/* return the original object and remove inserted object
1762	(client needs the original object) */	1683	(client needs the original object) */
1763	tmp->nrof += op->nrof;	1684	tmp->nrof += op->nrof;
…		…
1782	add_weight (this, op->weight * op->nrof);	1703	add_weight (this, op->weight * op->nrof);
1783	}	1704	}
1784	else	1705	else
1785	add_weight (this, (op->weight + op->carrying));	1706	add_weight (this, (op->weight + op->carrying));
1786		1707
1787	otmp = is_player_inv (this);	1708	if (object *otmp = this->in_player ())
1788	if (otmp && otmp->contr)
1789	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1709	if (otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1790	fix_player (otmp);	1710	otmp->update_stats ();
1791		1711
		1712	op->owner = 0; // its his/hers now. period.
1792	op->map = NULL;	1713	op->map = 0;
1793	op->env = this;	1714	op->env = this;
1794	op->above = NULL;	1715	op->above = 0;
1795	op->below = NULL;	1716	op->below = 0;
1796	op->x = 0, op->y = 0;	1717	op->x = op->y = 0;
1797		1718
1798	/* reset the light list and los of the players on the map */	1719	/* reset the light list and los of the players on the map */
1799	if ((op->glow_radius != 0) && map)	1720	if (op->glow_radius && map)
1800	{	1721	{
1801	#ifdef DEBUG_LIGHTS	1722	#ifdef DEBUG_LIGHTS
1802	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);	1723	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1803	#endif /* DEBUG_LIGHTS */	1724	#endif /* DEBUG_LIGHTS */
1804	if (MAP_DARKNESS (map))	1725	if (map->darkness)
1805	update_all_los (map, x, y);	1726	update_all_los (map, x, y);
1806	}	1727	}
1807		1728
1808	/* Client has no idea of ordering so lets not bother ordering it here.	1729	/* Client has no idea of ordering so lets not bother ordering it here.
1809	* It sure simplifies this function...	1730	* It sure simplifies this function...
…		…
1814	{	1735	{
1815	op->below = inv;	1736	op->below = inv;
1816	op->below->above = op;	1737	op->below->above = op;
1817	inv = op;	1738	inv = op;
1818	}	1739	}
		1740
		1741	INVOKE_OBJECT (INSERT, this);
1819		1742
1820	return op;	1743	return op;
1821	}	1744	}
1822		1745
1823	/*	1746	/*
…		…
1838	*	1761	*
1839	* MSW 2001-07-08: Check all objects on space, not just those below	1762	* MSW 2001-07-08: Check all objects on space, not just those below
1840	* object being inserted. insert_ob_in_map may not put new objects	1763	* object being inserted. insert_ob_in_map may not put new objects
1841	* on top.	1764	* on top.
1842	*/	1765	*/
1843
1844	int	1766	int
1845	check_move_on (object *op, object *originator)	1767	check_move_on (object *op, object *originator)
1846	{	1768	{
1847	object *tmp;	1769	object *tmp;
1848	maptile *m = op->map;	1770	maptile *m = op->map;
…		…
1875		1797
1876	/* The objects have to be checked from top to bottom.	1798	/* The objects have to be checked from top to bottom.
1877	* Hence, we first go to the top:	1799	* Hence, we first go to the top:
1878	*/	1800	*/
1879		1801
1880	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1802	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1881	{	1803	{
1882	/* Trim the search when we find the first other spell effect	1804	/* Trim the search when we find the first other spell effect
1883	* this helps performance so that if a space has 50 spell objects,	1805	* this helps performance so that if a space has 50 spell objects,
1884	* we don't need to check all of them.	1806	* we don't need to check all of them.
1885	*/	1807	*/
…		…
1903	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1825	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1904	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))	1826	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
1905	{	1827	{
1906		1828
1907	float	1829	float
1908	diff = tmp->move_slow_penalty * FABS (op->speed);	1830	diff = tmp->move_slow_penalty * fabs (op->speed);
1909		1831
1910	if (op->type == PLAYER)	1832	if (op->type == PLAYER)
1911	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||	1833	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1912	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))	1834	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1913	diff /= 4.0;	1835	diff /= 4.0;
…		…
1940	/*	1862	/*
1941	* present_arch(arch, map, x, y) searches for any objects with	1863	* present_arch(arch, map, x, y) searches for any objects with
1942	* a matching archetype at the given map and coordinates.	1864	* a matching archetype at the given map and coordinates.
1943	* The first matching object is returned, or NULL if none.	1865	* The first matching object is returned, or NULL if none.
1944	*/	1866	*/
1945
1946	object *	1867	object *
1947	present_arch (const archetype *at, maptile *m, int x, int y)	1868	present_arch (const archetype *at, maptile *m, int x, int y)
1948	{	1869	{
1949	object *
1950	tmp;
1951
1952	if (m == NULL || out_of_map (m, x, y))	1870	if (!m || out_of_map (m, x, y))
1953	{	1871	{
1954	LOG (llevError, "Present_arch called outside map.\n");	1872	LOG (llevError, "Present_arch called outside map.\n");
1955	return NULL;	1873	return NULL;
1956	}	1874	}
1957	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1875
		1876	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1958	if (tmp->arch == at)	1877	if (tmp->arch == at)
1959	return tmp;	1878	return tmp;
		1879
1960	return NULL;	1880	return NULL;
1961	}	1881	}
1962		1882
1963	/*	1883	/*
1964	* present(type, map, x, y) searches for any objects with	1884	* present(type, map, x, y) searches for any objects with
1965	* a matching type variable at the given map and coordinates.	1885	* a matching type variable at the given map and coordinates.
1966	* The first matching object is returned, or NULL if none.	1886	* The first matching object is returned, or NULL if none.
1967	*/	1887	*/
1968
1969	object *	1888	object *
1970	present (unsigned char type, maptile *m, int x, int y)	1889	present (unsigned char type, maptile *m, int x, int y)
1971	{	1890	{
1972	object *
1973	tmp;
1974
1975	if (out_of_map (m, x, y))	1891	if (out_of_map (m, x, y))
1976	{	1892	{
1977	LOG (llevError, "Present called outside map.\n");	1893	LOG (llevError, "Present called outside map.\n");
1978	return NULL;	1894	return NULL;
1979	}	1895	}
1980	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1896
		1897	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1981	if (tmp->type == type)	1898	if (tmp->type == type)
1982	return tmp;	1899	return tmp;
		1900
1983	return NULL;	1901	return NULL;
1984	}	1902	}
1985		1903
1986	/*	1904	/*
1987	* present_in_ob(type, object) searches for any objects with	1905	* present_in_ob(type, object) searches for any objects with
1988	* a matching type variable in the inventory of the given object.	1906	* a matching type variable in the inventory of the given object.
1989	* The first matching object is returned, or NULL if none.	1907	* The first matching object is returned, or NULL if none.
1990	*/	1908	*/
1991
1992	object *	1909	object *
1993	present_in_ob (unsigned char type, const object *op)	1910	present_in_ob (unsigned char type, const object *op)
1994	{	1911	{
1995	object *
1996	tmp;
1997
1998	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1912	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1999	if (tmp->type == type)	1913	if (tmp->type == type)
2000	return tmp;	1914	return tmp;
		1915
2001	return NULL;	1916	return NULL;
2002	}	1917	}
2003		1918
2004	/*	1919	/*
2005	* present_in_ob (type, str, object) searches for any objects with	1920	* present_in_ob (type, str, object) searches for any objects with
…		…
2013	* str is the string to match against. Note that we match against	1928	* str is the string to match against. Note that we match against
2014	* the object name, not the archetype name. this is so that the	1929	* the object name, not the archetype name. this is so that the
2015	* spell code can use one object type (force), but change it's name	1930	* spell code can use one object type (force), but change it's name
2016	* to be unique.	1931	* to be unique.
2017	*/	1932	*/
2018
2019	object *	1933	object *
2020	present_in_ob_by_name (int type, const char *str, const object *op)	1934	present_in_ob_by_name (int type, const char *str, const object *op)
2021	{	1935	{
2022	object *
2023	tmp;
2024
2025	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1936	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2026	{
2027	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1937	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2028	return tmp;	1938	return tmp;
2029	}	1939
2030	return NULL;	1940	return 0;
2031	}	1941	}
2032		1942
2033	/*	1943	/*
2034	* present_arch_in_ob(archetype, object) searches for any objects with	1944	* present_arch_in_ob(archetype, object) searches for any objects with
2035	* a matching archetype in the inventory of the given object.	1945	* a matching archetype in the inventory of the given object.
2036	* The first matching object is returned, or NULL if none.	1946	* The first matching object is returned, or NULL if none.
2037	*/	1947	*/
2038
2039	object *	1948	object *
2040	present_arch_in_ob (const archetype *at, const object *op)	1949	present_arch_in_ob (const archetype *at, const object *op)
2041	{	1950	{
2042	object *
2043	tmp;
2044
2045	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1951	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2046	if (tmp->arch == at)	1952	if (tmp->arch == at)
2047	return tmp;	1953	return tmp;
		1954
2048	return NULL;	1955	return NULL;
2049	}	1956	}
2050		1957
2051	/*	1958	/*
2052	* activate recursively a flag on an object inventory	1959	* activate recursively a flag on an object inventory
2053	*/	1960	*/
2054	void	1961	void
2055	flag_inv (object *op, int flag)	1962	flag_inv (object *op, int flag)
2056	{	1963	{
2057	object *
2058	tmp;
2059
2060	if (op->inv)
2061	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1964	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2062	{	1965	{
2063	SET_FLAG (tmp, flag);	1966	SET_FLAG (tmp, flag);
2064	flag_inv (tmp, flag);	1967	flag_inv (tmp, flag);
2065	}	1968	}
2066	} /*	1969	}
		1970
		1971	/*
2067	* desactivate recursively a flag on an object inventory	1972	* deactivate recursively a flag on an object inventory
2068	*/	1973	*/
2069	void	1974	void
2070	unflag_inv (object *op, int flag)	1975	unflag_inv (object *op, int flag)
2071	{	1976	{
2072	object *
2073	tmp;
2074
2075	if (op->inv)
2076	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1977	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2077	{	1978	{
2078	CLEAR_FLAG (tmp, flag);	1979	CLEAR_FLAG (tmp, flag);
2079	unflag_inv (tmp, flag);	1980	unflag_inv (tmp, flag);
2080	}	1981	}
2081	}
2082
2083	/*
2084	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2085	* all it's inventory (recursively).
2086	* If checksums are used, a player will get set_cheat called for
2087	* him/her-self and all object carried by a call to this function.
2088	*/
2089
2090	void
2091	set_cheat (object *op)
2092	{
2093	SET_FLAG (op, FLAG_WAS_WIZ);
2094	flag_inv (op, FLAG_WAS_WIZ);
2095	}	1982	}
2096		1983
2097	/*	1984	/*
2098	* find_free_spot(object, map, x, y, start, stop) will search for	1985	* find_free_spot(object, map, x, y, start, stop) will search for
2099	* a spot at the given map and coordinates which will be able to contain	1986	* a spot at the given map and coordinates which will be able to contain
…		…
2101	* to search (see the freearr_x/y[] definition).	1988	* to search (see the freearr_x/y[] definition).
2102	* It returns a random choice among the alternatives found.	1989	* It returns a random choice among the alternatives found.
2103	* start and stop are where to start relative to the free_arr array (1,9	1990	* start and stop are where to start relative to the free_arr array (1,9
2104	* does all 4 immediate directions). This returns the index into the	1991	* does all 4 immediate directions). This returns the index into the
2105	* array of the free spot, -1 if no spot available (dir 0 = x,y)	1992	* array of the free spot, -1 if no spot available (dir 0 = x,y)
2106	* Note - this only checks to see if there is space for the head of the
2107	* object - if it is a multispace object, this should be called for all
2108	* pieces.
2109	* Note2: This function does correctly handle tiled maps, but does not	1993	* Note: This function does correctly handle tiled maps, but does not
2110	* inform the caller. However, insert_ob_in_map will update as	1994	* inform the caller. However, insert_ob_in_map will update as
2111	* necessary, so the caller shouldn't need to do any special work.	1995	* necessary, so the caller shouldn't need to do any special work.
2112	* Note - updated to take an object instead of archetype - this is necessary	1996	* Note - updated to take an object instead of archetype - this is necessary
2113	* because arch_blocked (now ob_blocked) needs to know the movement type	1997	* because arch_blocked (now ob_blocked) needs to know the movement type
2114	* to know if the space in question will block the object. We can't use	1998	* to know if the space in question will block the object. We can't use
2115	* the archetype because that isn't correct if the monster has been	1999	* the archetype because that isn't correct if the monster has been
2116	* customized, changed states, etc.	2000	* customized, changed states, etc.
2117	*/	2001	*/
2118
2119	int	2002	int
2120	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	2003	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2121	{	2004	{
2122	int
2123	i,
2124	index = 0, flag;
2125	static int
2126	altern[SIZEOFFREE];	2005	int altern[SIZEOFFREE];
		2006	int index = 0, flag;
2127		2007
2128	for (i = start; i < stop; i++)	2008	for (int i = start; i < stop; i++)
2129	{	2009	{
2130	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2010	mapxy pos (m, x, y); pos.move (i);
2131	if (!flag)	2011
		2012	if (!pos.normalise ())
		2013	continue;
		2014
		2015	mapspace &ms = *pos;
		2016
		2017	if (ms.flags () & P_IS_ALIVE)
		2018	continue;
		2019
		2020	/* However, often
		2021	* ob doesn't have any move type (when used to place exits)
		2022	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
		2023	*/
		2024	if (ob && ob->move_type == 0 && ms.move_block != MOVE_ALL)
		2025	{
2132	altern[index++] = i;	2026	altern [index++] = i;
		2027	continue;
		2028	}
2133		2029
2134	/* Basically, if we find a wall on a space, we cut down the search size.	2030	/* Basically, if we find a wall on a space, we cut down the search size.
2135	* In this way, we won't return spaces that are on another side of a wall.	2031	* In this way, we won't return spaces that are on another side of a wall.
2136	* This mostly work, but it cuts down the search size in all directions -	2032	* This mostly work, but it cuts down the search size in all directions -
2137	* if the space being examined only has a wall to the north and empty	2033	* if the space being examined only has a wall to the north and empty
2138	* spaces in all the other directions, this will reduce the search space	2034	* spaces in all the other directions, this will reduce the search space
2139	* to only the spaces immediately surrounding the target area, and	2035	* to only the spaces immediately surrounding the target area, and
2140	* won't look 2 spaces south of the target space.	2036	* won't look 2 spaces south of the target space.
2141	*/	2037	*/
2142	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2038	if (ms.move_block == MOVE_ALL && maxfree[i] < stop)
		2039	{
2143	stop = maxfree[i];	2040	stop = maxfree[i];
		2041	continue;
		2042	}
		2043
		2044	/* Note it is intentional that we check ob - the movement type of the
		2045	* head of the object should correspond for the entire object.
		2046	*/
		2047	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))
		2048	continue;
		2049
		2050	if (ob->blocked (m, pos.x, pos.y))
		2051	continue;
		2052
		2053	altern [index++] = i;
2144	}	2054	}
		2055
2145	if (!index)	2056	if (!index)
2146	return -1;	2057	return -1;
		2058
2147	return altern[RANDOM () % index];	2059	return altern [rndm (index)];
2148	}	2060	}
2149		2061
2150	/*	2062	/*
2151	* find_first_free_spot(archetype, maptile, x, y) works like	2063	* find_first_free_spot(archetype, maptile, x, y) works like
2152	* find_free_spot(), but it will search max number of squares.	2064	* find_free_spot(), but it will search max number of squares.
2153	* But it will return the first available spot, not a random choice.	2065	* But it will return the first available spot, not a random choice.
2154	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2066	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2155	*/	2067	*/
2156
2157	int	2068	int
2158	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2069	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2159	{	2070	{
2160	int
2161	i;
2162
2163	for (i = 0; i < SIZEOFFREE; i++)	2071	for (int i = 0; i < SIZEOFFREE; i++)
2164	{
2165	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2072	if (!ob->blocked (m, x + freearr_x[i], y + freearr_y[i]))
2166	return i;	2073	return i;
2167	}	2074
2168	return -1;	2075	return -1;
2169	}	2076	}
2170		2077
2171	/*	2078	/*
2172	* The function permute(arr, begin, end) randomly reorders the array	2079	* The function permute(arr, begin, end) randomly reorders the array
2173	* arr[begin..end-1].	2080	* arr[begin..end-1].
		2081	* now uses a fisher-yates shuffle, old permute was broken
2174	*/	2082	*/
2175	static void	2083	static void
2176	permute (int *arr, int begin, int end)	2084	permute (int *arr, int begin, int end)
2177	{	2085	{
2178	int	2086	arr += begin;
2179	i,
2180	j,
2181	tmp,
2182	len;
2183
2184	len = end - begin;	2087	end -= begin;
2185	for (i = begin; i < end; i++)
2186	{
2187	j = begin + RANDOM () % len;
2188		2088
2189	tmp = arr[i];	2089	while (--end)
2190	arr[i] = arr[j];	2090	swap (arr [end], arr [rndm (end + 1)]);
2191	arr[j] = tmp;
2192	}
2193	}	2091	}
2194		2092
2195	/* new function to make monster searching more efficient, and effective!	2093	/* new function to make monster searching more efficient, and effective!
2196	* This basically returns a randomized array (in the passed pointer) of	2094	* This basically returns a randomized array (in the passed pointer) of
2197	* the spaces to find monsters. In this way, it won't always look for	2095	* the spaces to find monsters. In this way, it won't always look for
…		…
2200	* the 3x3 area will be searched, just not in a predictable order.	2098	* the 3x3 area will be searched, just not in a predictable order.
2201	*/	2099	*/
2202	void	2100	void
2203	get_search_arr (int *search_arr)	2101	get_search_arr (int *search_arr)
2204	{	2102	{
2205	int	2103	int i;
2206	i;
2207		2104
2208	for (i = 0; i < SIZEOFFREE; i++)	2105	for (i = 0; i < SIZEOFFREE; i++)
2209	{
2210	search_arr[i] = i;	2106	search_arr[i] = i;
2211	}
2212		2107
2213	permute (search_arr, 1, SIZEOFFREE1 + 1);	2108	permute (search_arr, 1, SIZEOFFREE1 + 1);
2214	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2109	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2215	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2110	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2216	}	2111	}
…		…
2225	* Perhaps incorrectly, but I'm making the assumption that exclude	2120	* Perhaps incorrectly, but I'm making the assumption that exclude
2226	* is actually want is going to try and move there. We need this info	2121	* is actually want is going to try and move there. We need this info
2227	* because we have to know what movement the thing looking to move	2122	* because we have to know what movement the thing looking to move
2228	* there is capable of.	2123	* there is capable of.
2229	*/	2124	*/
2230
2231	int	2125	int
2232	find_dir (maptile *m, int x, int y, object *exclude)	2126	find_dir (maptile *m, int x, int y, object *exclude)
2233	{	2127	{
2234	int
2235	i,
2236	max = SIZEOFFREE, mflags;	2128	int i, max = SIZEOFFREE, mflags;
2237		2129
2238	sint16 nx, ny;	2130	sint16 nx, ny;
2239	object *	2131	object *tmp;
2240	tmp;
2241	maptile *	2132	maptile *mp;
2242	mp;
2243		2133
2244	MoveType blocked, move_type;	2134	MoveType blocked, move_type;
2245		2135
2246	if (exclude && exclude->head)	2136	if (exclude && exclude->head_ () != exclude)
2247	{	2137	{
2248	exclude = exclude->head;	2138	exclude = exclude->head;
2249	move_type = exclude->move_type;	2139	move_type = exclude->move_type;
2250	}	2140	}
2251	else	2141	else
…		…
2259	mp = m;	2149	mp = m;
2260	nx = x + freearr_x[i];	2150	nx = x + freearr_x[i];
2261	ny = y + freearr_y[i];	2151	ny = y + freearr_y[i];
2262		2152
2263	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2153	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2154
2264	if (mflags & P_OUT_OF_MAP)	2155	if (mflags & P_OUT_OF_MAP)
2265	{
2266	max = maxfree[i];	2156	max = maxfree[i];
2267	}
2268	else	2157	else
2269	{	2158	{
2270	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2159	mapspace &ms = mp->at (nx, ny);
		2160
		2161	blocked = ms.move_block;
2271		2162
2272	if ((move_type & blocked) == move_type)	2163	if ((move_type & blocked) == move_type)
2273	{
2274	max = maxfree[i];	2164	max = maxfree[i];
2275	}
2276	else if (mflags & P_IS_ALIVE)	2165	else if (mflags & P_IS_ALIVE)
2277	{	2166	{
2278	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2167	for (tmp = ms.bot; tmp; tmp = tmp->above)
2279	{	2168	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2280	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2169	&& (tmp != exclude || (tmp->head_ () != tmp && tmp->head_ () != exclude)))
2281	{
2282	break;	2170	break;
2283	}	2171
2284	}
2285	if (tmp)	2172	if (tmp)
2286	{
2287	return freedir[i];	2173	return freedir[i];
2288	}
2289	}	2174	}
2290	}	2175	}
2291	}	2176	}
		2177
2292	return 0;	2178	return 0;
2293	}	2179	}
2294		2180
2295	/*	2181	/*
2296	* distance(object 1, object 2) will return the square of the	2182	* distance(object 1, object 2) will return the square of the
2297	* distance between the two given objects.	2183	* distance between the two given objects.
2298	*/	2184	*/
2299
2300	int	2185	int
2301	distance (const object *ob1, const object *ob2)	2186	distance (const object *ob1, const object *ob2)
2302	{	2187	{
2303	int
2304	i;
2305
2306	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2188	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2307	return i;
2308	}	2189	}
2309		2190
2310	/*	2191	/*
2311	* find_dir_2(delta-x,delta-y) will return a direction in which	2192	* find_dir_2(delta-x,delta-y) will return a direction in which
2312	* an object which has subtracted the x and y coordinates of another	2193	* an object which has subtracted the x and y coordinates of another
2313	* object, needs to travel toward it.	2194	* object, needs to travel toward it.
2314	*/	2195	*/
2315
2316	int	2196	int
2317	find_dir_2 (int x, int y)	2197	find_dir_2 (int x, int y)
2318	{	2198	{
2319	int	2199	int q;
2320	q;
2321		2200
2322	if (y)	2201	if (y)
2323	q = x * 100 / y;	2202	q = x * 100 / y;
2324	else if (x)	2203	else if (x)
2325	q = -300 * x;	2204	q = -300 * x;
…		…
2350		2229
2351	return 3;	2230	return 3;
2352	}	2231	}
2353		2232
2354	/*	2233	/*
2355	* absdir(int): Returns a number between 1 and 8, which represent
2356	* the "absolute" direction of a number (it actually takes care of
2357	* "overflow" in previous calculations of a direction).
2358	*/
2359
2360	int
2361	absdir (int d)
2362	{
2363	while (d < 1)
2364	d += 8;
2365	while (d > 8)
2366	d -= 8;
2367	return d;
2368	}
2369
2370	/*
2371	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2234	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2372	* between two directions (which are expected to be absolute (see absdir())	2235	* between two directions (which are expected to be absolute (see absdir())
2373	*/	2236	*/
2374
2375	int	2237	int
2376	dirdiff (int dir1, int dir2)	2238	dirdiff (int dir1, int dir2)
2377	{	2239	{
2378	int	2240	int d;
2379	d;
2380		2241
2381	d = abs (dir1 - dir2);	2242	d = abs (dir1 - dir2);
2382	if (d > 4)	2243	if (d > 4)
2383	d = 8 - d;	2244	d = 8 - d;
		2245
2384	return d;	2246	return d;
2385	}	2247	}
2386		2248
2387	/* peterm:	2249	/* peterm:
2388	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2250	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2391	* This basically means that if direction is 15, then it could either go	2253	* This basically means that if direction is 15, then it could either go
2392	* direction 4, 14, or 16 to get back to where we are.	2254	* direction 4, 14, or 16 to get back to where we are.
2393	* Moved from spell_util.c to object.c with the other related direction	2255	* Moved from spell_util.c to object.c with the other related direction
2394	* functions.	2256	* functions.
2395	*/	2257	*/
2396
2397	int
2398	reduction_dir[SIZEOFFREE][3] = {	2258	int reduction_dir[SIZEOFFREE][3] = {
2399	{0, 0, 0}, /* 0 */	2259	{0, 0, 0}, /* 0 */
2400	{0, 0, 0}, /* 1 */	2260	{0, 0, 0}, /* 1 */
2401	{0, 0, 0}, /* 2 */	2261	{0, 0, 0}, /* 2 */
2402	{0, 0, 0}, /* 3 */	2262	{0, 0, 0}, /* 3 */
2403	{0, 0, 0}, /* 4 */	2263	{0, 0, 0}, /* 4 */
…		…
2451	* find a path to that monster that we found. If not,	2311	* find a path to that monster that we found. If not,
2452	* we don't bother going toward it. Returns 1 if we	2312	* we don't bother going toward it. Returns 1 if we
2453	* can see a direct way to get it	2313	* can see a direct way to get it
2454	* Modified to be map tile aware -.MSW	2314	* Modified to be map tile aware -.MSW
2455	*/	2315	*/
2456
2457
2458	int	2316	int
2459	can_see_monsterP (maptile *m, int x, int y, int dir)	2317	can_see_monsterP (maptile *m, int x, int y, int dir)
2460	{	2318	{
2461	sint16 dx, dy;	2319	sint16 dx, dy;
2462	int
2463	mflags;	2320	int mflags;
2464		2321
2465	if (dir < 0)	2322	if (dir < 0)
2466	return 0; /* exit condition: invalid direction */	2323	return 0; /* exit condition: invalid direction */
2467		2324
2468	dx = x + freearr_x[dir];	2325	dx = x + freearr_x[dir];
…		…
2481	return 0;	2338	return 0;
2482		2339
2483	/* yes, can see. */	2340	/* yes, can see. */
2484	if (dir < 9)	2341	if (dir < 9)
2485	return 1;	2342	return 1;
		2343
2486	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2344	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2487	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2345	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2346	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2488	}	2347	}
2489
2490
2491		2348
2492	/*	2349	/*
2493	* can_pick(picker, item): finds out if an object is possible to be	2350	* can_pick(picker, item): finds out if an object is possible to be
2494	* picked up by the picker. Returnes 1 if it can be	2351	* picked up by the picker. Returnes 1 if it can be
2495	* picked up, otherwise 0.	2352	* picked up, otherwise 0.
…		…
2497	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause	2354	* Cf 0.91.3 - don't let WIZ's pick up anything - will likely cause
2498	* core dumps if they do.	2355	* core dumps if they do.
2499	*	2356	*
2500	* Add a check so we can't pick up invisible objects (0.93.8)	2357	* Add a check so we can't pick up invisible objects (0.93.8)
2501	*/	2358	*/
2502
2503	int	2359	int
2504	can_pick (const object *who, const object *item)	2360	can_pick (const object *who, const object *item)
2505	{	2361	{
2506	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2362	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2507	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2363	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2508	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2364	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2509	}	2365	}
2510		2366
2511
2512	/*	2367	/*
2513	* create clone from object to another	2368	* create clone from object to another
2514	*/	2369	*/
2515	object *	2370	object *
2516	object_create_clone (object *asrc)	2371	object_create_clone (object *asrc)
2517	{	2372	{
2518	object *dst = 0, *tmp, *src, *part, *prev, *item;	2373	object *dst = 0, *tmp, *src, *prev, *item;
2519		2374
2520	if (!asrc)	2375	if (!asrc)
2521	return 0;	2376	return 0;
2522		2377
2523	src = asrc;
2524	if (src->head)
2525	src = src->head;	2378	src = asrc->head_ ();
2526		2379
2527	prev = 0;	2380	prev = 0;
2528	for (part = src; part; part = part->more)	2381	for (object *part = src; part; part = part->more)
2529	{	2382	{
2530	tmp = part->clone ();	2383	tmp = part->clone ();
2531	tmp->x -= src->x;	2384	tmp->x -= src->x;
2532	tmp->y -= src->y;	2385	tmp->y -= src->y;
2533		2386
…		…
2535	{	2388	{
2536	dst = tmp;	2389	dst = tmp;
2537	tmp->head = 0;	2390	tmp->head = 0;
2538	}	2391	}
2539	else	2392	else
2540	{
2541	tmp->head = dst;	2393	tmp->head = dst;
2542	}
2543		2394
2544	tmp->more = 0;	2395	tmp->more = 0;
2545		2396
2546	if (prev)	2397	if (prev)
2547	prev->more = tmp;	2398	prev->more = tmp;
…		…
2551		2402
2552	for (item = src->inv; item; item = item->below)	2403	for (item = src->inv; item; item = item->below)
2553	insert_ob_in_ob (object_create_clone (item), dst);	2404	insert_ob_in_ob (object_create_clone (item), dst);
2554		2405
2555	return dst;	2406	return dst;
2556	}
2557
2558	/* GROS - Creates an object using a string representing its content. */
2559	/* Basically, we save the content of the string to a temp file, then call */
2560	/* load_object on it. I admit it is a highly inefficient way to make things, */
2561	/* but it was simple to make and allows reusing the load_object function. */
2562	/* Remember not to use load_object_str in a time-critical situation. */
2563	/* Also remember that multiparts objects are not supported for now. */
2564
2565	object *
2566	load_object_str (const char *obstr)
2567	{
2568	object *op;
2569	char filename[MAX_BUF];
2570
2571	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2572
2573	FILE *tempfile = fopen (filename, "w");
2574
2575	if (tempfile == NULL)
2576	{
2577	LOG (llevError, "Error - Unable to access load object temp file\n");
2578	return NULL;
2579	}
2580
2581	fprintf (tempfile, obstr);
2582	fclose (tempfile);
2583
2584	op = object::create ();
2585
2586	object_thawer thawer (filename);
2587
2588	if (thawer)
2589	load_object (thawer, op, 0);
2590
2591	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2592	CLEAR_FLAG (op, FLAG_REMOVED);
2593
2594	return op;
2595	}	2407	}
2596		2408
2597	/* This returns the first object in who's inventory that	2409	/* This returns the first object in who's inventory that
2598	* has the same type and subtype match.	2410	* has the same type and subtype match.
2599	* returns NULL if no match.	2411	* returns NULL if no match.
2600	*/	2412	*/
2601	object *	2413	object *
2602	find_obj_by_type_subtype (const object *who, int type, int subtype)	2414	find_obj_by_type_subtype (const object *who, int type, int subtype)
2603	{	2415	{
2604	object *tmp;
2605
2606	for (tmp = who->inv; tmp; tmp = tmp->below)	2416	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2607	if (tmp->type == type && tmp->subtype == subtype)	2417	if (tmp->type == type && tmp->subtype == subtype)
2608	return tmp;	2418	return tmp;
2609		2419
2610	return NULL;	2420	return 0;
2611	}	2421	}
2612		2422
2613	/* If ob has a field named key, return the link from the list,	2423	/* If ob has a field named key, return the link from the list,
2614	* otherwise return NULL.	2424	* otherwise return NULL.
2615	*	2425	*
…		…
2617	* do the desired thing.	2427	* do the desired thing.
2618	*/	2428	*/
2619	key_value *	2429	key_value *
2620	get_ob_key_link (const object *ob, const char *key)	2430	get_ob_key_link (const object *ob, const char *key)
2621	{	2431	{
2622	key_value *link;
2623
2624	for (link = ob->key_values; link != NULL; link = link->next)	2432	for (key_value *link = ob->key_values; link; link = link->next)
2625	if (link->key == key)	2433	if (link->key == key)
2626	return link;	2434	return link;
2627		2435
2628	return NULL;	2436	return 0;
2629	}	2437	}
2630		2438
2631	/*	2439	/*
2632	* Returns the value of op has an extra_field for key, or NULL.	2440	* Returns the value of op has an extra_field for key, or NULL.
2633	*	2441	*
…		…
2658	if (link->key == canonical_key)	2466	if (link->key == canonical_key)
2659	return link->value;	2467	return link->value;
2660		2468
2661	return 0;	2469	return 0;
2662	}	2470	}
2663
2664		2471
2665	/*	2472	/*
2666	* Updates the canonical_key in op to value.	2473	* Updates the canonical_key in op to value.
2667	*	2474	*
2668	* canonical_key is a shared string (value doesn't have to be).	2475	* canonical_key is a shared string (value doesn't have to be).
…		…
2673	* Returns TRUE on success.	2480	* Returns TRUE on success.
2674	*/	2481	*/
2675	int	2482	int
2676	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)	2483	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2677	{	2484	{
2678	key_value *
2679	field = NULL, *last = NULL;	2485	key_value *field = NULL, *last = NULL;
2680		2486
2681	for (field = op->key_values; field != NULL; field = field->next)	2487	for (field = op->key_values; field != NULL; field = field->next)
2682	{	2488	{
2683	if (field->key != canonical_key)	2489	if (field->key != canonical_key)
2684	{	2490	{
…		…
2693	/* Basically, if the archetype has this key set,	2499	/* Basically, if the archetype has this key set,
2694	* we need to store the null value so when we save	2500	* we need to store the null value so when we save
2695	* it, we save the empty value so that when we load,	2501	* it, we save the empty value so that when we load,
2696	* we get this value back again.	2502	* we get this value back again.
2697	*/	2503	*/
2698	if (get_ob_key_link (&op->arch->clone, canonical_key))	2504	if (get_ob_key_link (op->arch, canonical_key))
2699	field->value = 0;	2505	field->value = 0;
2700	else	2506	else
2701	{	2507	{
2702	if (last)	2508	if (last)
2703	last->next = field->next;	2509	last->next = field->next;
…		…
2712	/* IF we get here, key doesn't exist */	2518	/* IF we get here, key doesn't exist */
2713		2519
2714	/* No field, we'll have to add it. */	2520	/* No field, we'll have to add it. */
2715		2521
2716	if (!add_key)	2522	if (!add_key)
2717	{
2718	return FALSE;	2523	return FALSE;
2719	}	2524
2720	/* There isn't any good reason to store a null	2525	/* There isn't any good reason to store a null
2721	* value in the key/value list. If the archetype has	2526	* value in the key/value list. If the archetype has
2722	* this key, then we should also have it, so shouldn't	2527	* this key, then we should also have it, so shouldn't
2723	* be here. If user wants to store empty strings,	2528	* be here. If user wants to store empty strings,
2724	* should pass in ""	2529	* should pass in ""
…		…
2773	}	2578	}
2774	else	2579	else
2775	item = item->env;	2580	item = item->env;
2776	}	2581	}
2777		2582
		2583	const char *
		2584	object::flag_desc (char *desc, int len) const
		2585	{
		2586	char *p = desc;
		2587	bool first = true;
		2588
		2589	*p = 0;
		2590
		2591	for (int i = 0; i < NUM_FLAGS; i++)
		2592	{
		2593	if (len <= 10) // magic constant!
		2594	{
		2595	snprintf (p, len, ",...");
		2596	break;
		2597	}
		2598
		2599	if (flag [i])
		2600	{
		2601	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2602	len -= cnt;
		2603	p += cnt;
		2604	first = false;
		2605	}
		2606	}
		2607
		2608	return desc;
		2609	}
		2610
2778	// return a suitable string describing an objetc in enough detail to find it	2611	// return a suitable string describing an object in enough detail to find it
2779	const char *	2612	const char *
2780	object::debug_desc (char *info) const	2613	object::debug_desc (char *info) const
2781	{	2614	{
		2615	char flagdesc[512];
2782	char info2[256 * 3];	2616	char info2[256 * 4];
2783	char *p = info;	2617	char *p = info;
2784		2618
2785	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2619	p += snprintf (p, 512, "{cnt:%d,uuid:%s,name:\"%s\"%s%s,flags:[%s],type:%d}",
2786	count,	2620	count,
		2621	uuid.c_str (),
2787	&name,	2622	&name,
2788	title ? " " : "",	2623	title ? "\",title:\"" : "",
2789	title ? (const char *)title : "");	2624	title ? (const char *)title : "",
		2625	flag_desc (flagdesc, 512), type);
2790		2626
2791	if (env)	2627	if (!this->flag[FLAG_REMOVED] && env)
2792	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2628	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2793		2629
2794	if (map)	2630	if (map)
2795	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2631	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2796		2632
2797	return info;	2633	return info;
2798	}	2634	}
2799		2635
2800	const char *	2636	const char *
2801	object::debug_desc () const	2637	object::debug_desc () const
2802	{	2638	{
2803	static char info[256 * 3];	2639	static char info[3][256 * 4];
		2640	static int info_idx;
		2641
2804	return debug_desc (info);	2642	return debug_desc (info [++info_idx % 3]);
2805	}	2643	}
2806		2644
		2645	struct region *
		2646	object::region () const
		2647	{
		2648	return map ? map->region (x, y)
		2649	: region::default_region ();
		2650	}
		2651
		2652	const materialtype_t *
		2653	object::dominant_material () const
		2654	{
		2655	if (materialtype_t *mt = name_to_material (materialname))
		2656	return mt;
		2657
		2658	return name_to_material (shstr_unknown);
		2659	}
		2660
		2661	void
		2662	object::open_container (object *new_container)
		2663	{
		2664	if (container == new_container)
		2665	return;
		2666
		2667	if (object *old_container = container)
		2668	{
		2669	if (INVOKE_OBJECT (CLOSE, old_container, ARG_OBJECT (this)))
		2670	return;
		2671
		2672	#if 0
		2673	// remove the "Close old_container" object.
		2674	if (object *closer = old_container->inv)
		2675	if (closer->type == CLOSE_CON)
		2676	closer->destroy ();
		2677	#endif
		2678
		2679	old_container->flag [FLAG_APPLIED] = 0;
		2680	container = 0;
		2681
		2682	esrv_update_item (UPD_FLAGS, this, old_container);
		2683	new_draw_info_format (NDI_UNIQUE, 0, this, "You close %s.", query_name (old_container));
		2684	play_sound (sound_find ("chest_close"));
		2685	}
		2686
		2687	if (new_container)
		2688	{
		2689	if (INVOKE_OBJECT (OPEN, new_container, ARG_OBJECT (this)))
		2690	return;
		2691
		2692	// TODO: this does not seem to serve any purpose anymore?
		2693	#if 0
		2694	// insert the "Close Container" object.
		2695	if (archetype *closer = new_container->other_arch)
		2696	{
		2697	object *closer = arch_to_object (new_container->other_arch);
		2698	closer->flag [FLAG_NO_MAP_SAVE] = 1;
		2699	new_container->insert (closer);
		2700	}
		2701	#endif
		2702
		2703	new_draw_info_format (NDI_UNIQUE, 0, this, "You open %s.", query_name (new_container));
		2704
		2705	new_container->flag [FLAG_APPLIED] = 1;
		2706	container = new_container;
		2707
		2708	esrv_update_item (UPD_FLAGS, this, new_container);
		2709	esrv_send_inventory (this, new_container);
		2710	play_sound (sound_find ("chest_open"));
		2711	}
		2712	}
		2713
		2714	object *
		2715	object::force_find (const shstr name)
		2716	{
		2717	/* cycle through his inventory to look for the MARK we want to
		2718	* place
		2719	*/
		2720	for (object *tmp = inv; tmp; tmp = tmp->below)
		2721	if (tmp->type == FORCE && tmp->slaying == name)
		2722	return splay (tmp);
		2723
		2724	return 0;
		2725	}
		2726
		2727	void
		2728	object::force_add (const shstr name, int duration)
		2729	{
		2730	if (object *force = force_find (name))
		2731	force->destroy ();
		2732
		2733	object *force = get_archetype (FORCE_NAME);
		2734
		2735	force->slaying = name;
		2736	force->stats.food = 1;
		2737	force->speed_left = -1.f;
		2738
		2739	force->set_speed (duration ? 1.f / duration : 0.f);
		2740	force->flag [FLAG_IS_USED_UP] = true;
		2741	force->flag [FLAG_APPLIED] = true;
		2742
		2743	insert (force);
		2744	}
		2745
		2746	void
		2747	object::play_sound (faceidx sound) const
		2748	{
		2749	if (!sound)
		2750	return;
		2751
		2752	if (flag [FLAG_REMOVED])
		2753	return;
		2754
		2755	if (env)
		2756	{
		2757	if (object *pl = in_player ())
		2758	pl->contr->play_sound (sound);
		2759	}
		2760	else
		2761	map->play_sound (sound, x, y);
		2762	}
		2763

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