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Comparing deliantra/server/common/object.C (file contents):
Revision 1.21 by root, Sat Sep 9 21:48:28 2006 UTC vs.
Revision 1.128 by root, Mon Feb 5 01:24:45 2007 UTC

1	/*	1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.21 2006/09/09 21:48:28 root Exp $";
4	*/
5
6	/*
7	CrossFire, A Multiplayer game for X-windows	2	* CrossFire, A Multiplayer game for X-windows
8		3	*
		4	* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	* Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (C) 1992 Frank Tore Johansen
11		7	*
12	This program is free software; you can redistribute it and/or modify	8	* This program is free software; you can redistribute it and/or modify
13	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
14	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation; either version 2 of the License, or
15	(at your option) any later version.	11	* (at your option) any later version.
16		12	*
17	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	19	* along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		21	*
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	22	* The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	23	*/
28		24
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	25	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	26	sub/add_weight will transcend the environment updating the carrying
31	variable. */	27	variable. */
32	#include <global.h>	28	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	29	#include <stdio.h>
35	#include <sys/types.h>	30	#include <sys/types.h>
36	#include <sys/uio.h>	31	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	32	#include <object.h>
39	#include <funcpoint.h>	33	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	34	#include <loader.h>
		35
		36	#include <bitset>
		37
42	int nrofallocobjects = 0;	38	int nrofallocobjects = 0;
		39	static UUID uuid;
		40	const uint64 UUID_SKIP = 1<<19;
43		41
44	object *objects; /* Pointer to the list of used objects */	42	objectvec objects;
45	object *active_objects; /* List of active objects that need to be processed */	43	activevec actives;
46		44
47	short freearr_x[SIZEOFFREE]=	45	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
48	{0,0,1,1,1,0,-1,-1,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,-2,-2,-2,-1,
49	0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3,-3,-3,-3,-3,-2,-1};	46	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	short freearr_y[SIZEOFFREE]=	47	};
51	{0,-1,-1,0,1,1,1,0,-1,-2,-2,-2,-1,0,1,2,2,2,2,2,1,0,-1,-2,-2,	48	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
52	-3,-3,-3,-3,-2,-1,0,1,2,3,3,3,3,3,3,3,2,1,0,-1,-2,-3,-3,-3};	49	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
53	int maxfree[SIZEOFFREE]=	50	};
54	{0,9,10,13,14,17,18,21,22,25,26,27,30,31,32,33,36,37,39,39,42,43,44,45,	51	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
55	48,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49,49};	52	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
		53	};
56	int freedir[SIZEOFFREE]= {	54	int freedir[SIZEOFFREE] = {
57	0,1,2,3,4,5,6,7,8,1,2,2,2,3,4,4,4,5,6,6,6,7,8,8,8,	55	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
58	1,2,2,2,2,2,3,4,4,4,4,4,5,6,6,6,6,6,7,8,8,8,8,8};	56	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		57	};
		58
		59	static void
		60	write_uuid (void)
		61	{
		62	char filename1[MAX_BUF], filename2[MAX_BUF];
		63
		64	sprintf (filename1, "%s/uuid", settings.localdir);
		65	sprintf (filename2, "%s/uuid~", settings.localdir);
		66
		67	FILE *fp;
		68
		69	if (!(fp = fopen (filename2, "w")))
		70	{
		71	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		72	return;
		73	}
		74
		75	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		76	fclose (fp);
		77	rename (filename2, filename1);
		78	}
		79
		80	static void
		81	read_uuid (void)
		82	{
		83	char filename[MAX_BUF];
		84
		85	sprintf (filename, "%s/uuid", settings.localdir);
		86
		87	FILE *fp;
		88
		89	if (!(fp = fopen (filename, "r")))
		90	{
		91	if (errno == ENOENT)
		92	{
		93	LOG (llevInfo, "RESET uid to 1\n");
		94	uuid.seq = 0;
		95	write_uuid ();
		96	return;
		97	}
		98
		99	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		100	_exit (1);
		101	}
		102
		103	int version;
		104	unsigned long long uid;
		105	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		106	{
		107	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		108	_exit (1);
		109	}
		110
		111	uuid.seq = uid;
		112	write_uuid ();
		113	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		114	fclose (fp);
		115	}
		116
		117	UUID
		118	gen_uuid ()
		119	{
		120	UUID uid;
		121
		122	uid.seq = ++uuid.seq;
		123
		124	if (!(uuid.seq & (UUID_SKIP - 1)))
		125	write_uuid ();
		126
		127	return uid;
		128	}
		129
		130	void
		131	init_uuid ()
		132	{
		133	read_uuid ();
		134	}
59		135
60	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	136	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		137	static int
61	static int compare_ob_value_lists_one(const object * wants, const object * has) {	138	compare_ob_value_lists_one (const object *wants, const object *has)
		139	{
62	key_value * wants_field;	140	key_value *wants_field;
63		141
64	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	142	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
65	* objects with lists are rare, and lists stay short. If not, use a	143	* objects with lists are rare, and lists stay short. If not, use a
66	* different structure or at least keep the lists sorted...	144	* different structure or at least keep the lists sorted...
67	*/	145	*/
68		146
69	/* For each field in wants, */	147	/* For each field in wants, */
70	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	148	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		149	{
71	key_value * has_field;	150	key_value *has_field;
72		151
73	/* Look for a field in has with the same key. */	152	/* Look for a field in has with the same key. */
74	has_field = get_ob_key_link(has, wants_field->key);	153	has_field = get_ob_key_link (has, wants_field->key);
		154
		155	if (has_field == NULL)
75		156	{
76	if (has_field == NULL) {
77	/* No field with that name. */	157	/* No field with that name. */
78	return FALSE;	158	return FALSE;
79	}	159	}
80		160
81	/* Found the matching field. */	161	/* Found the matching field. */
82	if (has_field->value != wants_field->value) {	162	if (has_field->value != wants_field->value)
		163	{
83	/* Values don't match, so this half of the comparison is false. */	164	/* Values don't match, so this half of the comparison is false. */
84	return FALSE;	165	return FALSE;
85	}	166	}
86		167
87	/* If we get here, we found a match. Now for the next field in wants. */	168	/* If we get here, we found a match. Now for the next field in wants. */
88	}
89		169	}
		170
90	/* If we get here, every field in wants has a matching field in has. */	171	/* If we get here, every field in wants has a matching field in has. */
91	return TRUE;	172	return TRUE;
92	}	173	}
93		174
94	/* Returns TRUE if ob1 has the same key_values as ob2. */	175	/* Returns TRUE if ob1 has the same key_values as ob2. */
		176	static int
95	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	177	compare_ob_value_lists (const object *ob1, const object *ob2)
		178	{
96	/* However, there may be fields in has which aren't partnered in wants,	179	/* However, there may be fields in has which aren't partnered in wants,
97	* so we need to run the comparison *twice*. :(	180	* so we need to run the comparison *twice*. :(
98	*/	181	*/
99	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	182	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
100	}	183	}
101		184
102	/* Function examines the 2 objects given to it, and returns true if	185	/* Function examines the 2 objects given to it, and returns true if
103	* they can be merged together.	186	* they can be merged together.
104	*	187	*
105	* Note that this function appears a lot longer than the macro it	188	* Note that this function appears a lot longer than the macro it
106	* replaces - this is mostly for clarity - a decent compiler should hopefully	189	* replaces - this is mostly for clarity - a decent compiler should hopefully
107	* reduce this to the same efficiency.	190	* reduce this to the same efficiency.
108	*	191	*
109	* Check nrof variable *before* calling CAN_MERGE()	192	* Check nrof variable *before* calling can_merge()
110	*	193	*
111	* Improvements made with merge: Better checking on potion, and also	194	* Improvements made with merge: Better checking on potion, and also
112	* check weight	195	* check weight
113	*/	196	*/
114
115	bool
116	object::can_merge (object *ob1, object *ob2)	197	bool object::can_merge_slow (object *ob1, object *ob2)
117	{	198	{
118	/* A couple quicksanity checks */	199	/* A couple quicksanity checks */
119	if ((ob1 == ob2) || (ob1->type != ob2->type))	200	if (ob1 == ob2
		201	|| ob1->type != ob2->type
		202	|| ob1->speed != ob2->speed
		203	|| ob1->value != ob2->value
		204	|| ob1->name != ob2->name)
120	return 0;	205	return 0;
121		206
122	if (ob1->speed != ob2->speed)	207	//TODO: this ain't working well, use nicer and correct overflow check
123	return 0;
124
125	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	208	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
126	* value could not be stored in a sint32 (which unfortunately sometimes is	209	* value could not be stored in a sint32 (which unfortunately sometimes is
127	* used to store nrof).	210	* used to store nrof).
128	*/	211	*/
129	if (ob1->nrof + ob2->nrof >= 1UL << 31)	212	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
139	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	222	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
140		223
141	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	224	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
142	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	225	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
143		226
144		227	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
145	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	228	|| ob1->arch != ob2->arch
146	* being locked in inventory should prevent merging.
147	* 0x4 in flags3 is CLIENT_SENT
148	*/
149	if ((ob1->arch != ob2->arch) ||
150	(ob1->flags[0] != ob2->flags[0]) ||
151	(ob1->flags[1] != ob2->flags[1]) ||
152	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
153	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
154	(ob1->name != ob2->name) ||	229	|| ob1->name != ob2->name
155	(ob1->title != ob2->title) ||	230	|| ob1->title != ob2->title
156	(ob1->msg != ob2->msg) ||	231	|| ob1->msg != ob2->msg
157	(ob1->weight != ob2->weight) ||	232	|| ob1->weight != ob2->weight
158	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	233	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
159	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	234	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
160	(ob1->attacktype != ob2->attacktype) ||	235	|| ob1->attacktype != ob2->attacktype
161	(ob1->magic != ob2->magic) ||	236	|| ob1->magic != ob2->magic
162	(ob1->slaying != ob2->slaying) ||	237	|| ob1->slaying != ob2->slaying
163	(ob1->skill != ob2->skill) ||	238	|| ob1->skill != ob2->skill
164	(ob1->value != ob2->value) ||	239	|| ob1->value != ob2->value
165	(ob1->animation_id != ob2->animation_id) ||	240	|| ob1->animation_id != ob2->animation_id
166	(ob1->client_type != ob2->client_type) ||	241	|| ob1->client_type != ob2->client_type
167	(ob1->materialname != ob2->materialname) ||	242	|| ob1->materialname != ob2->materialname
168	(ob1->lore != ob2->lore) ||	243	|| ob1->lore != ob2->lore
169	(ob1->subtype != ob2->subtype) ||	244	|| ob1->subtype != ob2->subtype
170	(ob1->move_type != ob2->move_type) ||	245	|| ob1->move_type != ob2->move_type
171	(ob1->move_block != ob2->move_block) ||	246	|| ob1->move_block != ob2->move_block
172	(ob1->move_allow != ob2->move_allow) ||	247	|| ob1->move_allow != ob2->move_allow
173	(ob1->move_on != ob2->move_on) ||	248	|| ob1->move_on != ob2->move_on
174	(ob1->move_off != ob2->move_off) ||	249	|| ob1->move_off != ob2->move_off
175	(ob1->move_slow != ob2->move_slow) ||	250	|| ob1->move_slow != ob2->move_slow
176	(ob1->move_slow_penalty != ob2->move_slow_penalty))	251	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
177	return 0;	252	return 0;
178		253
179	/* This is really a spellbook check - really, we should	254	/* This is really a spellbook check - really, we should
180	* check all objects in the inventory.	255	* check all objects in the inventory.
181	*/	256	*/
182	if (ob1->inv || ob2->inv)	257	if (ob1->inv || ob2->inv)
183	{	258	{
184	/* if one object has inventory but the other doesn't, not equiv */	259	/* if one object has inventory but the other doesn't, not equiv */
185	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	260	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
186	return 0;	261	return 0;
187		262
188	/* Now check to see if the two inventory objects could merge */	263	/* Now check to see if the two inventory objects could merge */
189	if (!CAN_MERGE (ob1->inv, ob2->inv))	264	if (!object::can_merge (ob1->inv, ob2->inv))
190	return 0;	265	return 0;
191		266
192	/* inventory ok - still need to check rest of this object to see	267	/* inventory ok - still need to check rest of this object to see
193	* if it is valid.	268	* if it is valid.
194	*/	269	*/
195	}	270	}
…		…
203		278
204	/* Note sure why the following is the case - either the object has to	279	/* Note sure why the following is the case - either the object has to
205	* be animated or have a very low speed. Is this an attempted monster	280	* be animated or have a very low speed. Is this an attempted monster
206	* check?	281	* check?
207	*/	282	*/
208	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	283	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
209	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
210	return 0;	284	return 0;
211		285
212	switch (ob1->type)	286	switch (ob1->type)
213	{	287	{
214	case SCROLL:	288	case SCROLL:
215	if (ob1->level != ob2->level)	289	if (ob1->level != ob2->level)
216	return 0;	290	return 0;
217	break;	291	break;
218	}	292	}
219		293
220	if (ob1->key_values != NULL || ob2->key_values != NULL)	294	if (ob1->key_values != NULL || ob2->key_values != NULL)
221	{	295	{
222	/* At least one of these has key_values. */	296	/* At least one of these has key_values. */
223	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	297	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
224	/* One has fields, but the other one doesn't. */	298	/* One has fields, but the other one doesn't. */
225	return 0;	299	return 0;
226	else if (!compare_ob_value_lists (ob1, ob2))	300	else if (!compare_ob_value_lists (ob1, ob2))
227	return 0;	301	return 0;
228	}	302	}
229		303
230	//TODO: generate an event or call into perl for additional checks	304	//TODO: generate an event or call into perl for additional checks
231	if (ob1->self || ob2->self)	305	if (ob1->self || ob2->self)
232	{	306	{
233	ob1->optimise ();	307	ob1->optimise ();
234	ob2->optimise ();	308	ob2->optimise ();
235		309
236	if (ob1->self || ob2->self)	310	if (ob1->self || ob2->self)
237	return 0;	311	return 0;
238	}	312	}
239		313
240	/* Everything passes, must be OK. */	314	/* Everything passes, must be OK. */
241	return 1;	315	return 1;
242	}	316	}
		317
243	/*	318	/*
244	* sum_weight() is a recursive function which calculates the weight	319	* sum_weight() is a recursive function which calculates the weight
245	* an object is carrying. It goes through in figures out how much	320	* an object is carrying. It goes through in figures out how much
246	* containers are carrying, and sums it up.	321	* containers are carrying, and sums it up.
247	*/	322	*/
248	signed long sum_weight(object *op) {	323	long
		324	sum_weight (object *op)
		325	{
249	signed long sum;	326	long sum;
250	object *inv;	327	object *inv;
		328
251	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	329	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		330	{
252	if (inv->inv)	331	if (inv->inv)
253	sum_weight(inv);	332	sum_weight (inv);
254	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	333	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
255	}	334	}
		335
256	if (op->type == CONTAINER && op->stats.Str)	336	if (op->type == CONTAINER && op->stats.Str)
257	sum = (sum * (100 - op->stats.Str))/100;	337	sum = (sum * (100 - op->stats.Str)) / 100;
		338
258	if(op->carrying != sum)	339	if (op->carrying != sum)
259	op->carrying = sum;	340	op->carrying = sum;
		341
260	return sum;	342	return sum;
261	}	343	}
262		344
263	/**	345	/**
264	* Return the outermost environment object for a given object.	346	* Return the outermost environment object for a given object.
265	*/	347	*/
266		348
		349	object *
267	object *object_get_env_recursive (object *op) {	350	object_get_env_recursive (object *op)
		351	{
268	while (op->env != NULL)	352	while (op->env != NULL)
269	op = op->env;	353	op = op->env;
270	return op;	354	return op;
271	}
272
273	/*
274	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
275	* a better check. We basically keeping traversing up until we can't
276	* or find a player.
277	*/
278
279	object *is_player_inv (object *op) {
280	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
281	if (op->env==op)
282	op->env = NULL;
283	return op;
284	}	355	}
285		356
286	/*	357	/*
287	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	358	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
288	* Some error messages.	359	* Some error messages.
289	* The result of the dump is stored in the static global errmsg array.	360	* The result of the dump is stored in the static global errmsg array.
290	*/	361	*/
291		362
292	void dump_object2(object *op) {	363	char *
293	errmsg[0] = 0;
294	return;
295	//TODO//D#d#
296	#if 0
297	char *cp;
298	/* object *tmp;*/
299
300	if(op->arch!=NULL) {
301	strcat(errmsg,"arch ");
302	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
303	strcat(errmsg,"\n");
304	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
305	strcat(errmsg,cp);
306	#if 0
307	/* Don't dump player diffs - they are too long, mostly meaningless, and
308	* will overflow the buffer.
309	* Changed so that we don't dump inventory either. This may
310	* also overflow the buffer.
311	*/
312	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
313	strcat(errmsg,cp);
314	for (tmp=op->inv; tmp; tmp=tmp->below)
315	dump_object2(tmp);
316	#endif
317	strcat(errmsg,"end\n");
318	} else {
319	strcat(errmsg,"Object ");
320	if (op->name==NULL) strcat(errmsg, "(null)");
321	else strcat(errmsg,op->name);
322	strcat(errmsg,"\n");
323	#if 0
324	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
325	strcat(errmsg,cp);
326	for (tmp=op->inv; tmp; tmp=tmp->below)
327	dump_object2(tmp);
328	#endif
329	strcat(errmsg,"end\n");
330	}
331	#endif
332	}
333
334	/*
335	* Dumps an object. Returns output in the static global errmsg array.
336	*/
337
338	void dump_object(object *op) {	364	dump_object (object *op)
339	if(op==NULL) {	365	{
340	strcpy(errmsg,"[NULL pointer]");	366	if (!op)
341	return;	367	return strdup ("[NULLOBJ]");
342	}
343	errmsg[0]='\0';
344	dump_object2(op);
345	}
346		368
347	void dump_all_objects(void) {	369	object_freezer freezer;
348	object *op;	370	save_object (freezer, op, 1);
349	for(op=objects;op!=NULL;op=op->next) {	371	return freezer.as_string ();
350	dump_object(op);
351	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
352	}
353	}	372	}
354		373
355	/*	374	/*
356	* get_nearest_part(multi-object, object 2) returns the part of the	375	* get_nearest_part(multi-object, object 2) returns the part of the
357	* multi-object 1 which is closest to the second object.	376	* multi-object 1 which is closest to the second object.
358	* If it's not a multi-object, it is returned.	377	* If it's not a multi-object, it is returned.
359	*/	378	*/
360		379
		380	object *
361	object *get_nearest_part(object *op, const object *pl) {	381	get_nearest_part (object *op, const object *pl)
		382	{
362	object *tmp,*closest;	383	object *tmp, *closest;
363	int last_dist,i;	384	int last_dist, i;
		385
364	if(op->more==NULL)	386	if (op->more == NULL)
365	return op;	387	return op;
366	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	388	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
367	if((i=distance(tmp,pl))<last_dist)	389	if ((i = distance (tmp, pl)) < last_dist)
368	closest=tmp,last_dist=i;	390	closest = tmp, last_dist = i;
369	return closest;	391	return closest;
370	}	392	}
371		393
372	/*	394	/*
373	* Returns the object which has the count-variable equal to the argument.	395	* Returns the object which has the count-variable equal to the argument.
374	*/	396	*/
375		397	object *
376	object *find_object(tag_t i) {	398	find_object (tag_t i)
377	object *op;	399	{
378	for(op=objects;op!=NULL;op=op->next)	400	for_all_objects (op)
379	if(op->count==i)	401	if (op->count == i)
380	break;
381	return op;	402	return op;
		403
		404	return 0;
382	}	405	}
383		406
384	/*	407	/*
385	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
386	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
387	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
388	*/	411	*/
389		412	object *
390	object *find_object_name(const char *str) {	413	find_object_name (const char *str)
391	const char *name = shstr::find (str);	414	{
		415	shstr_cmp str_ (str);
392	object *op;	416	object *op;
393	for(op=objects;op!=NULL;op=op->next)	417
		418	for_all_objects (op)
394	if(&op->name == name)	419	if (op->name == str_)
395	break;	420	break;
396		421
397	return op;	422	return op;
398	}	423	}
399		424
		425	void
400	void free_all_object_data ()	426	free_all_object_data ()
401	{	427	{
402	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	428	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
403	}
404
405	/*
406	* Returns the object which this object marks as being the owner.
407	* A id-scheme is used to avoid pointing to objects which have been
408	* freed and are now reused. If this is detected, the owner is
409	* set to NULL, and NULL is returned.
410	* Changed 2004-02-12 - if the player is setting at the play again
411	* prompt, he is removed, and we don't want to treat him as an owner of
412	* anything, so check removed flag. I don't expect that this should break
413	* anything - once an object is removed, it is basically dead anyways.
414	*/
415
416	object *get_owner(object *op) {
417	if(op->owner==NULL)
418	return NULL;
419
420	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
421	op->owner->count==op->ownercount)
422	return op->owner;
423
424	op->owner=NULL;
425	op->ownercount=0;
426	return NULL;
427	}
428
429	void clear_owner(object *op)
430	{
431	if (!op) return;
432
433	if (op->owner && op->ownercount == op->owner->count)
434	op->owner->refcount--;
435
436	op->owner = NULL;
437	op->ownercount = 0;
438	}	429	}
439		430
440	/*	431	/*
441	* Sets the owner and sets the skill and exp pointers to owner's current	432	* Sets the owner and sets the skill and exp pointers to owner's current
442	* skill and experience objects.	433	* skill and experience objects.
443	*/	434	*/
444	void set_owner (object *op, object *owner)	435	void
		436	object::set_owner (object *owner)
445	{	437	{
446	if(owner==NULL||op==NULL)	438	if (!owner)
447	return;	439	return;
448		440
449	/* next line added to allow objects which own objects */	441	/* next line added to allow objects which own objects */
450	/* Add a check for ownercounts in here, as I got into an endless loop	442	/* Add a check for ownercounts in here, as I got into an endless loop
451	* with the fireball owning a poison cloud which then owned the	443	* with the fireball owning a poison cloud which then owned the
452	* fireball. I believe that was caused by one of the objects getting	444	* fireball. I believe that was caused by one of the objects getting
453	* freed and then another object replacing it. Since the ownercounts	445	* freed and then another object replacing it. Since the ownercounts
454	* didn't match, this check is valid and I believe that cause is valid.	446	* didn't match, this check is valid and I believe that cause is valid.
455	*/	447	*/
456	while (owner->owner && owner!=owner->owner &&	448	while (owner->owner)
457	owner->ownercount==owner->owner->count) owner=owner->owner;	449	owner = owner->owner;
458		450
459	/* IF the owner still has an owner, we did not resolve to a final owner.
460	* so lets not add to that.
461	*/
462	if (owner->owner) return;
463
464	op->owner=owner;	451	this->owner = owner;
465
466	op->ownercount=owner->count;
467	owner->refcount++;
468
469	}
470
471	/* Set the owner to clone's current owner and set the skill and experience
472	* objects to clone's objects (typically those objects that where the owner's
473	* current skill and experience objects at the time when clone's owner was
474	* set - not the owner's current skill and experience objects).
475	*
476	* Use this function if player created an object (e.g. fire bullet, swarm
477	* spell), and this object creates further objects whose kills should be
478	* accounted for the player's original skill, even if player has changed
479	* skills meanwhile.
480	*/
481	void copy_owner (object *op, object *clone)
482	{
483	object *owner = get_owner (clone);
484	if (owner == NULL) {
485	/* players don't have owners - they own themselves. Update
486	* as appropriate.
487	*/
488	if (clone->type == PLAYER) owner=clone;
489	else return;
490	}
491	set_owner(op, owner);
492
493	}	452	}
494		453
495	/* Zero the key_values on op, decrementing the shared-string	454	/* Zero the key_values on op, decrementing the shared-string
496	* refcounts and freeing the links.	455	* refcounts and freeing the links.
497	*/	456	*/
		457	static void
498	static void free_key_values(object * op)	458	free_key_values (object *op)
499	{	459	{
500	for (key_value *i = op->key_values; i != 0; )	460	for (key_value *i = op->key_values; i != 0;)
501	{	461	{
502	key_value *next = i->next;	462	key_value *next = i->next;
503	delete i;	463	delete i;
		464
504	i = next;	465	i = next;
505	}	466	}
506		467
507	op->key_values = 0;	468	op->key_values = 0;
508	}	469	}
509		470
510	void object::clear ()
511	{
512	attachable_base::clear ();
513
514	free_key_values (this);
515
516	name = 0;
517	name_pl = 0;
518	title = 0;
519	race = 0;
520	slaying = 0;
521	skill = 0;
522	msg = 0;
523	lore = 0;
524	custom_name = 0;
525	materialname = 0;
526
527	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
528
529	SET_FLAG (this, FLAG_REMOVED);
530	}
531
532	void object::clone (object *destination)
533	{
534	*(object_copy *)destination = *(object_copy *)this;
535	*(object_pod *)destination = *(object_pod *)this;
536
537	if (self || cb)
538	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
539	}
540
541	/*	471	/*
542	* clear_object() frees everything allocated by an object, and also
543	* clears all variables and flags to default settings.
544	*/
545
546	void clear_object (object *op)
547	{
548	op->clear ();
549
550	op->contr = NULL;
551	op->below = NULL;
552	op->above = NULL;
553	op->inv = NULL;
554	op->container=NULL;
555	op->env=NULL;
556	op->more=NULL;
557	op->head=NULL;
558	op->map=NULL;
559	op->refcount=0;
560	op->active_next = NULL;
561	op->active_prev = NULL;
562	/* What is not cleared is next, prev, and count */
563
564	op->expmul = 1.0;
565	op->face = blank_face;
566	op->attacked_by_count = -1;
567
568	if (settings.casting_time)
569	op->casting_time = -1;
570	}
571
572	/*
573	* copy object first frees everything allocated by the second object,	472	* copy_to first frees everything allocated by the dst object,
574	* and then copies the contends of the first object into the second	473	* and then copies the contents of itself into the second
575	* object, allocating what needs to be allocated. Basically, any	474	* object, allocating what needs to be allocated. Basically, any
576	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	475	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
577	* if the first object is freed, the pointers in the new object	476	* if the first object is freed, the pointers in the new object
578	* will point at garbage.	477	* will point at garbage.
579	*/	478	*/
580		479	void
581	void copy_object (object *op2, object *op)	480	object::copy_to (object *dst)
582	{	481	{
583	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	482	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
584	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	483	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
585		484
586	op2->clone (op);	485	*(object_copy *)dst = *this;
587		486
588	if (is_freed) SET_FLAG (op, FLAG_FREED);	487	if (is_freed)
589	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	488	SET_FLAG (dst, FLAG_FREED);
590		489
		490	if (is_removed)
		491	SET_FLAG (dst, FLAG_REMOVED);
		492
591	if (op2->speed < 0)	493	if (speed < 0)
592	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	494	dst->speed_left = speed_left - rndm ();
593		495
594	/* Copy over key_values, if any. */	496	/* Copy over key_values, if any. */
595	if (op2->key_values != NULL)	497	if (key_values)
596	{	498	{
597	key_value *tail = NULL;	499	key_value *tail = 0;
598	key_value *i;	500	key_value *i;
599		501
600	op->key_values = NULL;	502	dst->key_values = 0;
601		503
602	for (i = op2->key_values; i != NULL; i = i->next)	504	for (i = key_values; i; i = i->next)
603	{	505	{
604	key_value *new_link = new key_value;	506	key_value *new_link = new key_value;
605		507
606	new_link->next = NULL;	508	new_link->next = 0;
607	new_link->key = i->key;	509	new_link->key = i->key;
608	new_link->value = i->value;	510	new_link->value = i->value;
609		511
610	/* Try and be clever here, too. */	512	/* Try and be clever here, too. */
611	if (op->key_values == NULL)	513	if (!dst->key_values)
612	{	514	{
613	op->key_values = new_link;	515	dst->key_values = new_link;
614	tail = new_link;	516	tail = new_link;
615	}	517	}
616	else	518	else
617	{	519	{
618	tail->next = new_link;	520	tail->next = new_link;
619	tail = new_link;	521	tail = new_link;
620	}	522	}
621	}	523	}
622	}	524	}
623		525
624	update_ob_speed (op);	526	dst->set_speed (dst->speed);
		527	}
		528
		529	object *
		530	object::clone ()
		531	{
		532	object *neu = create ();
		533	copy_to (neu);
		534	return neu;
625	}	535	}
626		536
627	/*	537	/*
628	* If an object with the IS_TURNABLE() flag needs to be turned due	538	* If an object with the IS_TURNABLE() flag needs to be turned due
629	* to the closest player being on the other side, this function can	539	* to the closest player being on the other side, this function can
630	* be called to update the face variable, _and_ how it looks on the map.	540	* be called to update the face variable, _and_ how it looks on the map.
631	*/	541	*/
632		542	void
633	void update_turn_face(object *op) {	543	update_turn_face (object *op)
		544	{
634	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	545	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
635	return;	546	return;
		547
636	SET_ANIMATION(op, op->direction);	548	SET_ANIMATION (op, op->direction);
637	update_object(op,UP_OBJ_FACE);	549	update_object (op, UP_OBJ_FACE);
638	}	550	}
639		551
640	/*	552	/*
641	* Updates the speed of an object. If the speed changes from 0 to another	553	* Updates the speed of an object. If the speed changes from 0 to another
642	* value, or vice versa, then add/remove the object from the active list.	554	* value, or vice versa, then add/remove the object from the active list.
643	* This function needs to be called whenever the speed of an object changes.	555	* This function needs to be called whenever the speed of an object changes.
644	*/	556	*/
645		557	void
646	void update_ob_speed(object *op) {	558	object::set_speed (float speed)
647	extern int arch_init;	559	{
648		560	if (flag [FLAG_FREED] && speed)
649	/* No reason putting the archetypes objects on the speed list,	561	{
650	* since they never really need to be updated.
651	*/
652
653	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
654	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	562	LOG (llevError, "Object %s is freed but has speed.\n", &name);
655	#ifdef MANY_CORES
656	abort();
657	#else
658	op->speed = 0;	563	speed = 0;
659	#endif
660	}	564	}
661	if (arch_init) {
662	return;
663	}
664	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
665	/* If already on active list, don't do anything */
666	if (op->active_next || op->active_prev || op==active_objects)
667	return;
668		565
669	/* process_events() expects us to insert the object at the beginning	566	this->speed = speed;
670	* of the list. */	567
671	op->active_next = active_objects;	568	if (has_active_speed ())
672	if (op->active_next!=NULL)	569	activate ();
673	op->active_next->active_prev = op;
674	active_objects = op;
675	}
676	else {	570	else
677	/* If not on the active list, nothing needs to be done */	571	deactivate ();
678	if (!op->active_next && !op->active_prev && op!=active_objects)
679	return;
680
681	if (op->active_prev==NULL) {
682	active_objects = op->active_next;
683	if (op->active_next!=NULL)
684	op->active_next->active_prev = NULL;
685	}
686	else {
687	op->active_prev->active_next = op->active_next;
688	if (op->active_next)
689	op->active_next->active_prev = op->active_prev;
690	}
691	op->active_next = NULL;
692	op->active_prev = NULL;
693	}
694	}	572	}
695		573
696	/* This function removes object 'op' from the list of active
697	* objects.
698	* This should only be used for style maps or other such
699	* reference maps where you don't want an object that isn't
700	* in play chewing up cpu time getting processed.
701	* The reverse of this is to call update_ob_speed, which
702	* will do the right thing based on the speed of the object.
703	*/
704	void remove_from_active_list(object *op)
705	{
706	/* If not on the active list, nothing needs to be done */
707	if (!op->active_next && !op->active_prev && op!=active_objects)
708	return;
709
710	if (op->active_prev==NULL) {
711	active_objects = op->active_next;
712	if (op->active_next!=NULL)
713	op->active_next->active_prev = NULL;
714	}
715	else {
716	op->active_prev->active_next = op->active_next;
717	if (op->active_next)
718	op->active_next->active_prev = op->active_prev;
719	}
720	op->active_next = NULL;
721	op->active_prev = NULL;
722	}
723
724	/*	574	/*
725	* update_object() updates the array which represents the map.	575	* update_object() updates the the map.
726	* It takes into account invisible objects (and represent squares covered	576	* It takes into account invisible objects (and represent squares covered
727	* by invisible objects by whatever is below them (unless it's another	577	* by invisible objects by whatever is below them (unless it's another
728	* invisible object, etc...)	578	* invisible object, etc...)
729	* If the object being updated is beneath a player, the look-window	579	* If the object being updated is beneath a player, the look-window
730	* of that player is updated (this might be a suboptimal way of	580	* of that player is updated (this might be a suboptimal way of
731	* updating that window, though, since update_object() is called _often_)	581	* updating that window, though, since update_object() is called _often_)
732	*	582	*
733	* action is a hint of what the caller believes need to be done.	583	* action is a hint of what the caller believes need to be done.
734	* For example, if the only thing that has changed is the face (due to
735	* an animation), we don't need to call update_position until that actually
736	* comes into view of a player. OTOH, many other things, like addition/removal
737	* of walls or living creatures may need us to update the flags now.
738	* current action are:	584	* current action are:
739	* UP_OBJ_INSERT: op was inserted	585	* UP_OBJ_INSERT: op was inserted
740	* UP_OBJ_REMOVE: op was removed	586	* UP_OBJ_REMOVE: op was removed
741	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	587	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
742	* as that is easier than trying to look at what may have changed.	588	* as that is easier than trying to look at what may have changed.
743	* UP_OBJ_FACE: only the objects face has changed.	589	* UP_OBJ_FACE: only the objects face has changed.
744	*/	590	*/
745		591	void
746	void update_object(object *op, int action) {	592	update_object (object *op, int action)
747	int update_now=0, flags;	593	{
748	MoveType move_on, move_off, move_block, move_slow;	594	MoveType move_on, move_off, move_block, move_slow;
749		595
750	if (op == NULL) {	596	if (op == NULL)
		597	{
751	/* this should never happen */	598	/* this should never happen */
752	LOG(llevDebug,"update_object() called for NULL object.\n");	599	LOG (llevDebug, "update_object() called for NULL object.\n");
753	return;	600	return;
754	}
755		601	}
756	if(op->env!=NULL) {	602
		603	if (op->env)
		604	{
757	/* Animation is currently handled by client, so nothing	605	/* Animation is currently handled by client, so nothing
758	* to do in this case.	606	* to do in this case.
759	*/	607	*/
760	return;	608	return;
761	}	609	}
762		610
763	/* If the map is saving, don't do anything as everything is	611	/* If the map is saving, don't do anything as everything is
764	* going to get freed anyways.	612	* going to get freed anyways.
765	*/	613	*/
766	if (!op->map || op->map->in_memory == MAP_SAVING) return;	614	if (!op->map || op->map->in_memory == MAP_SAVING)
767		615	return;
		616
768	/* make sure the object is within map boundaries */	617	/* make sure the object is within map boundaries */
769	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	618	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
770	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	619	{
771	LOG(llevError,"update_object() called for object out of map!\n");	620	LOG (llevError, "update_object() called for object out of map!\n");
772	#ifdef MANY_CORES	621	#ifdef MANY_CORES
773	abort();	622	abort ();
774	#endif	623	#endif
775	return;	624	return;
776	}
777		625	}
778	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
779	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
780	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
781	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
782	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
783	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
784		626
		627	mapspace &m = op->ms ();
		628
		629	if (!(m.flags_ & P_UPTODATE))
		630	/* nop */;
785	if (action == UP_OBJ_INSERT) {	631	else if (action == UP_OBJ_INSERT)
		632	{
		633	// this is likely overkill, TODO: revisit (schmorp)
786	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	634	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
787	update_now=1;
788
789	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	635	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
790	update_now=1;	636	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
791		637	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		638	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
792	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	639	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
793	update_now=1;	640	|| (m.move_on | op->move_on ) != m.move_on
794
795	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
796	update_now=1;
797
798	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
799	update_now=1;
800
801	if ((move_on | op->move_on) != move_on) update_now=1;
802
803	if ((move_off | op->move_off) != move_off) update_now=1;	641	|| (m.move_off | op->move_off ) != m.move_off
804		642	|| (m.move_slow | op->move_slow) != m.move_slow
805	/* This isn't perfect, but I don't expect a lot of objects to	643	/* This isn't perfect, but I don't expect a lot of objects to
806	* to have move_allow right now.	644	* to have move_allow right now.
807	*/	645	*/
808	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	646	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
809	update_now=1;	647	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
810		648	m.flags_ = 0;
811	if ((move_slow | op->move_slow) != move_slow)
812	update_now=1;
813	}	649	}
814	/* if the object is being removed, we can't make intelligent	650	/* if the object is being removed, we can't make intelligent
815	* decisions, because remove_ob can't really pass the object	651	* decisions, because remove_ob can't really pass the object
816	* that is being removed.	652	* that is being removed.
817	*/	653	*/
818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	654	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
819	update_now=1;	655	m.flags_ = 0;
820	} else if (action == UP_OBJ_FACE) {	656	else if (action == UP_OBJ_FACE)
821	/* Nothing to do for that case */	657	/* Nothing to do for that case */ ;
822	}
823	else {	658	else
824	LOG(llevError,"update_object called with invalid action: %d\n", action);	659	LOG (llevError, "update_object called with invalid action: %d\n", action);
825	}
826		660
827	if (update_now) {
828	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
829	update_position(op->map, op->x, op->y);
830	}
831
832	if(op->more!=NULL)	661	if (op->more)
833	update_object(op->more, action);	662	update_object (op->more, action);
834	}
835
836	static std::vector<object *> mortals;
837
838	void object::free_mortals ()
839	{
840	for (std::vector<object *>::iterator i = mortals.begin (); i != mortals.end (); ++i)
841	delete *i;
842
843	mortals.clear ();
844	}	663	}
845		664
846	object::object ()	665	object::object ()
847	{	666	{
848	count = ++ob_count;
849
850	prev = 0;
851	next = objects;
852
853	if (objects)
854	objects->prev = this;
855
856	objects = this;
857
858	SET_FLAG (this, FLAG_REMOVED);	667	SET_FLAG (this, FLAG_REMOVED);
859		668
860	expmul = 1.0;	669	expmul = 1.0;
861	face = blank_face;	670	face = blank_face;
862	attacked_by_count = -1;
863	}	671	}
864		672
865	object::~object ()	673	object::~object ()
866	{	674	{
		675	unlink ();
		676
		677	free_key_values (this);
		678	}
		679
		680	static int object_count;
		681
		682	void object::link ()
		683	{
		684	assert (!index);//D
		685	uuid = gen_uuid ();
		686	count = ++object_count;
		687
		688	refcnt_inc ();
		689	objects.insert (this);
		690	}
		691
		692	void object::unlink ()
		693	{
		694	if (!index)
		695	return;
		696
		697	objects.erase (this);
		698	refcnt_dec ();
		699	}
		700
		701	void
		702	object::activate ()
		703	{
		704	/* If already on active list, don't do anything */
		705	if (active)
		706	return;
		707
		708	if (has_active_speed ())
		709	actives.insert (this);
		710	}
		711
		712	void
		713	object::activate_recursive ()
		714	{
		715	activate ();
		716
		717	for (object *op = inv; op; op = op->below)
		718	op->activate_recursive ();
		719	}
		720
		721	/* This function removes object 'op' from the list of active
		722	* objects.
		723	* This should only be used for style maps or other such
		724	* reference maps where you don't want an object that isn't
		725	* in play chewing up cpu time getting processed.
		726	* The reverse of this is to call update_ob_speed, which
		727	* will do the right thing based on the speed of the object.
		728	*/
		729	void
		730	object::deactivate ()
		731	{
		732	/* If not on the active list, nothing needs to be done */
		733	if (!active)
		734	return;
		735
		736	actives.erase (this);
		737	}
		738
		739	void
		740	object::deactivate_recursive ()
		741	{
		742	for (object *op = inv; op; op = op->below)
		743	op->deactivate_recursive ();
		744
		745	deactivate ();
		746	}
		747
		748	void
		749	object::set_flag_inv (int flag, int value)
		750	{
		751	for (object *op = inv; op; op = op->below)
		752	{
		753	op->flag [flag] = value;
		754	op->set_flag_inv (flag, value);
		755	}
		756	}
		757
		758	/*
		759	* Remove and free all objects in the inventory of the given object.
		760	* object.c ?
		761	*/
		762	void
		763	object::destroy_inv (bool drop_to_ground)
		764	{
		765	// need to check first, because the checks below might segfault
		766	// as we might be on an invalid mapspace and crossfire code
		767	// is too buggy to ensure that the inventory is empty.
		768	// corollary: if you create arrows etc. with stuff in tis inventory,
		769	// cf will crash below with off-map x and y
		770	if (!inv)
		771	return;
		772
		773	/* Only if the space blocks everything do we not process -
		774	* if some form of movement is allowed, let objects
		775	* drop on that space.
		776	*/
		777	if (!drop_to_ground
		778	|| !map
		779	|| map->in_memory != MAP_IN_MEMORY
		780	|| map->nodrop
		781	|| ms ().move_block == MOVE_ALL)
		782	{
		783	while (inv)
		784	{
		785	inv->destroy_inv (drop_to_ground);
		786	inv->destroy ();
		787	}
		788	}
		789	else
		790	{ /* Put objects in inventory onto this space */
		791	while (inv)
		792	{
		793	object *op = inv;
		794
		795	if (op->flag [FLAG_STARTEQUIP]
		796	|| op->flag [FLAG_NO_DROP]
		797	|| op->type == RUNE
		798	|| op->type == TRAP
		799	|| op->flag [FLAG_IS_A_TEMPLATE]
		800	|| op->flag [FLAG_DESTROY_ON_DEATH])
		801	op->destroy ();
		802	else
		803	map->insert (op, x, y);
		804	}
		805	}
867	}	806	}
868		807
869	object *object::create ()	808	object *object::create ()
870	{	809	{
871	return new object;	810	object *op = new object;
		811	op->link ();
		812	return op;
872	}	813	}
873		814
874	/*
875	* free_object() frees everything allocated by an object, removes
876	* it from the list of used objects, and puts it on the list of
877	* free objects. The IS_FREED() flag is set in the object.
878	* The object must have been removed by remove_ob() first for
879	* this function to succeed.
880	*
881	* If free_inventory is set, free inventory as well. Else drop items in
882	* inventory to the ground.
883	*/
884	void	815	void
885	object::free (bool free_inventory)	816	object::do_destroy ()
886	{	817	{
887	if (!QUERY_FLAG (this, FLAG_REMOVED))	818	attachable::do_destroy ();
888	{	819
889	LOG (llevDebug, "Free object called with non removed object\n");	820	if (flag [FLAG_IS_LINKED])
890	dump_object (this);	821	remove_button_link (this);
891	#ifdef MANY_CORES	822
892	abort ();	823	if (flag [FLAG_FRIENDLY])
893	#endif
894	}	824	{
895
896	if (QUERY_FLAG (this, FLAG_FRIENDLY))
897	{
898	LOG (llevMonster, "Warning: tried to free friendly object.\n");
899	remove_friendly_object (this);	825	remove_friendly_object (this);
900	}
901		826
902	if (QUERY_FLAG (this, FLAG_FREED))	827	if (type == GOLEM
		828	&& owner
		829	&& owner->type == PLAYER
		830	&& owner->contr->ranges[range_golem] == this)
		831	owner->contr->ranges[range_golem] = 0;
		832	}
		833
		834	if (!flag [FLAG_REMOVED])
		835	remove ();
		836
		837	destroy_inv (true);
		838
		839	deactivate ();
		840	unlink ();
		841
		842	flag [FLAG_FREED] = 1;
		843
		844	// hack to ensure that freed objects still have a valid map
		845	{
		846	static maptile *freed_map; // freed objects are moved here to avoid crashes
		847
		848	if (!freed_map)
903	{	849	{
904	dump_object (this);	850	freed_map = new maptile;
905	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	851
906	return;	852	freed_map->name = "/internal/freed_objects_map";
		853	freed_map->width = 3;
		854	freed_map->height = 3;
		855
		856	freed_map->alloc ();
		857	freed_map->in_memory = MAP_IN_MEMORY;
907	}	858	}
		859
		860	map = freed_map;
		861	x = 1;
		862	y = 1;
		863	}
		864
		865	head = 0;
908		866
909	if (more)	867	if (more)
910	{	868	{
911	more->free (free_inventory);	869	more->destroy ();
912	more = 0;	870	more = 0;
913	}	871	}
914		872
915	if (inv)	873	// clear those pointers that likely might have circular references to us
916	{	874	owner = 0;
917	/* Only if the space blocks everything do we not process -	875	enemy = 0;
918	* if some form of movement is allowed, let objects	876	attacked_by = 0;
919	* drop on that space.
920	*/
921	if (free_inventory || !map
922	|| map->in_memory != MAP_IN_MEMORY
923	|| (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
924	{
925	object *op = inv;
926
927	while (op)
928	{
929	object *tmp = op->below;
930	remove_ob (op);
931	op->free (free_inventory);
932	op = tmp;
933	}
934	}
935	else
936	{ /* Put objects in inventory onto this space */
937	object *op = inv;
938
939	while (op)
940	{
941	object *tmp = op->below;
942	remove_ob (op);
943
944	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
945	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE
946	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
947	free_object (op);
948	else
949	{
950	op->x = x;
951	op->y = y;
952	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
953	}
954
955	op = tmp;
956	}
957	}
958	}
959
960	/* Remove object from the active list */
961	speed = 0;
962	update_ob_speed (this);
963
964	SET_FLAG (this, FLAG_FREED);
965
966	mortalise ();
967	}	877	}
968		878
969	void	879	void
970	object::mortalise ()	880	object::destroy (bool destroy_inventory)
971	{	881	{
972	count = 0;	882	if (destroyed ())
		883	return;
973		884
974	/* Remove this object from the list of used objects */	885	if (destroy_inventory)
975	if (prev) prev->next = next;	886	destroy_inv (false);
976	if (next) next->prev = prev;
977	if (this == objects) objects = next;
978		887
979	free_key_values (this);	888	attachable::destroy ();
980
981	mortals.push_back (this);
982	}	889	}
983		890
984	/*	891	/*
985	* sub_weight() recursively (outwards) subtracts a number from the	892	* sub_weight() recursively (outwards) subtracts a number from the
986	* weight of an object (and what is carried by it's environment(s)).	893	* weight of an object (and what is carried by it's environment(s)).
987	*/	894	*/
988		895	void
989	void sub_weight (object *op, signed long weight) {	896	sub_weight (object *op, signed long weight)
		897	{
990	while (op != NULL) {	898	while (op != NULL)
		899	{
991	if (op->type == CONTAINER) {	900	if (op->type == CONTAINER)
992	weight=(signed long)(weight*(100-op->stats.Str)/100);	901	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
993	}	902
994	op->carrying-=weight;	903	op->carrying -= weight;
995	op = op->env;	904	op = op->env;
996	}	905	}
997	}	906	}
998		907
999	/* remove_ob(op):	908	/* op->remove ():
1000	* This function removes the object op from the linked list of objects	909	* This function removes the object op from the linked list of objects
1001	* which it is currently tied to. When this function is done, the	910	* which it is currently tied to. When this function is done, the
1002	* object will have no environment. If the object previously had an	911	* object will have no environment. If the object previously had an
1003	* environment, the x and y coordinates will be updated to	912	* environment, the x and y coordinates will be updated to
1004	* the previous environment.	913	* the previous environment.
1005	* Beware: This function is called from the editor as well!
1006	*/	914	*/
1007		915	void
1008	void remove_ob(object *op) {	916	object::do_remove ()
		917	{
1009	object *tmp,*last=NULL;	918	object *tmp, *last = 0;
1010	object *otmp;	919	object *otmp;
1011	tag_t tag;
1012	int check_walk_off;
1013	mapstruct *m;
1014	sint16 x,y;
1015
1016		920
1017	if(QUERY_FLAG(op,FLAG_REMOVED)) {	921	if (QUERY_FLAG (this, FLAG_REMOVED))
1018	dump_object(op);	922	return;
1019	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1020		923
1021	/* Changed it to always dump core in this case. As has been learned
1022	* in the past, trying to recover from errors almost always
1023	* make things worse, and this is a real error here - something
1024	* that should not happen.
1025	* Yes, if this was a mission critical app, trying to do something
1026	* to recover may make sense, but that is because failure of the app
1027	* may have other disastrous problems. Cf runs out of a script
1028	* so is easily enough restarted without any real problems.
1029	* MSW 2001-07-01
1030	*/
1031	abort();
1032	}
1033	if(op->more!=NULL)
1034	remove_ob(op->more);
1035
1036	SET_FLAG(op, FLAG_REMOVED);	924	SET_FLAG (this, FLAG_REMOVED);
		925	INVOKE_OBJECT (REMOVE, this);
1037		926
		927	if (more)
		928	more->remove ();
		929
1038	/*	930	/*
1039	* In this case, the object to be removed is in someones	931	* In this case, the object to be removed is in someones
1040	* inventory.	932	* inventory.
1041	*/	933	*/
1042	if(op->env!=NULL) {	934	if (env)
		935	{
1043	if(op->nrof)	936	if (nrof)
1044	sub_weight(op->env, op->weight*op->nrof);	937	sub_weight (env, weight * nrof);
1045	else	938	else
1046	sub_weight(op->env, op->weight+op->carrying);	939	sub_weight (env, weight + carrying);
1047		940
1048	/* NO_FIX_PLAYER is set when a great many changes are being	941	/* NO_FIX_PLAYER is set when a great many changes are being
1049	* made to players inventory. If set, avoiding the call	942	* made to players inventory. If set, avoiding the call
1050	* to save cpu time.	943	* to save cpu time.
1051	*/	944	*/
1052	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	945	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1053	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	946	otmp->update_stats ();
1054	fix_player(otmp);
1055		947
1056	if(op->above!=NULL)	948	if (above)
1057	op->above->below=op->below;	949	above->below = below;
1058	else	950	else
1059	op->env->inv=op->below;	951	env->inv = below;
1060		952
1061	if(op->below!=NULL)	953	if (below)
1062	op->below->above=op->above;	954	below->above = above;
1063		955
1064	/* we set up values so that it could be inserted into	956	/* we set up values so that it could be inserted into
1065	* the map, but we don't actually do that - it is up	957	* the map, but we don't actually do that - it is up
1066	* to the caller to decide what we want to do.	958	* to the caller to decide what we want to do.
		959	*/
		960	x = env->x, y = env->y;
		961	map = env->map;
		962	above = 0, below = 0;
		963	env = 0;
		964	}
		965	else if (map)
		966	{
		967	if (type == PLAYER)
		968	{
		969	--map->players;
		970	map->touch ();
		971	}
		972
		973	map->dirty = true;
		974	mapspace &ms = this->ms ();
		975
		976	/* link the object above us */
		977	if (above)
		978	above->below = below;
		979	else
		980	ms.top = below; /* we were top, set new top */
		981
		982	/* Relink the object below us, if there is one */
		983	if (below)
		984	below->above = above;
		985	else
		986	{
		987	/* Nothing below, which means we need to relink map object for this space
		988	* use translated coordinates in case some oddness with map tiling is
		989	* evident
1067	*/	990	*/
1068	op->x=op->env->x,op->y=op->env->y;	991	if (GET_MAP_OB (map, x, y) != this)
1069	op->map=op->env->map;	992	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 ());
1070	op->above=NULL,op->below=NULL;	993
1071	op->env=NULL;	994	ms.bot = above; /* goes on above it. */
		995	}
		996
		997	above = 0;
		998	below = 0;
		999
		1000	if (map->in_memory == MAP_SAVING)
1072	return;	1001	return;
1073	}
1074		1002
1075	/* If we get here, we are removing it from a map */	1003	int check_walk_off = !flag [FLAG_NO_APPLY];
1076	if (op->map == NULL) return;
1077		1004
1078	x = op->x;	1005	for (tmp = ms.bot; tmp; tmp = tmp->above)
1079	y = op->y;	1006	{
1080	m = get_map_from_coord(op->map, &x, &y);	1007	/* No point updating the players look faces if he is the object
1081		1008	* being removed.
1082	if (!m) {
1083	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1084	op->map->path, op->x, op->y);
1085	/* in old days, we used to set x and y to 0 and continue.
1086	* it seems if we get into this case, something is probablye
1087	* screwed up and should be fixed.
1088	*/	1009	*/
1089	abort();
1090	}
1091	if (op->map != m) {
1092	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1093	op->map->path, m->path, op->x, op->y, x, y);
1094	}
1095		1010
1096	/* Re did the following section of code - it looks like it had	1011	if (tmp->type == PLAYER && tmp != this)
1097	* lots of logic for things we no longer care about	1012	{
1098	*/	1013	/* If a container that the player is currently using somehow gets
1099		1014	* removed (most likely destroyed), update the player view
1100	/* link the object above us */	1015	* appropriately.
1101	if (op->above)
1102	op->above->below=op->below;
1103	else
1104	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1105
1106	/* Relink the object below us, if there is one */
1107	if(op->below) {
1108	op->below->above=op->above;
1109	} else {
1110	/* Nothing below, which means we need to relink map object for this space
1111	* use translated coordinates in case some oddness with map tiling is
1112	* evident
1113	*/	1016	*/
1114	if(GET_MAP_OB(m,x,y)!=op) {	1017	if (tmp->container == this)
1115	dump_object(op);	1018	{
1116	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);	1019	flag [FLAG_APPLIED] = 0;
1117	dump_object(GET_MAP_OB(m,x,y));	1020	tmp->container = 0;
1118	LOG(llevError,"%s\n",errmsg);	1021	}
		1022
		1023	if (tmp->contr->ns)
		1024	tmp->contr->ns->floorbox_update ();
		1025	}
		1026
		1027	/* See if object moving off should effect something */
		1028	if (check_walk_off
		1029	&& ((move_type & tmp->move_off)
		1030	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1031	{
		1032	move_apply (tmp, this, 0);
		1033
		1034	if (destroyed ())
		1035	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1036	}
		1037
		1038	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1039	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
		1040	if (tmp->above == tmp)
		1041	tmp->above = 0;
		1042
		1043	last = tmp;
1119	}	1044	}
1120	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1121	}
1122	op->above=NULL;
1123	op->below=NULL;
1124		1045
1125	if (op->map->in_memory == MAP_SAVING)
1126	return;
1127
1128	tag = op->count;
1129	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1130	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1131	/* No point updating the players look faces if he is the object
1132	* being removed.
1133	*/
1134
1135	if(tmp->type==PLAYER && tmp!=op) {
1136	/* If a container that the player is currently using somehow gets
1137	* removed (most likely destroyed), update the player view
1138	* appropriately.
1139	*/
1140	if (tmp->container==op) {
1141	CLEAR_FLAG(op, FLAG_APPLIED);
1142	tmp->container=NULL;
1143	}
1144	tmp->contr->socket.update_look=1;
1145	}
1146	/* See if player moving off should effect something */
1147	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1148	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1149
1150	move_apply(tmp, op, NULL);
1151	if (was_destroyed (op, tag)) {
1152	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1153	"leaving object\n", &tmp->name, &tmp->arch->name);
1154	}
1155	}
1156
1157	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1158
1159	if(tmp->above == tmp)
1160	tmp->above = NULL;
1161	last=tmp;
1162	}
1163	/* last == NULL of there are no objects on this space */	1046	/* last == NULL if there are no objects on this space */
1164	if (last==NULL) {	1047	//TODO: this makes little sense, why only update the topmost object?
1165	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1048	if (!last)
1166	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1049	map->at (x, y).flags_ = 0;
1167	* those out anyways, and if there are any flags set right now, they won't
1168	* be correct anyways.
1169	*/
1170	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1171	update_position(op->map, op->x, op->y);
1172	}
1173	else	1050	else
1174	update_object(last, UP_OBJ_REMOVE);	1051	update_object (last, UP_OBJ_REMOVE);
1175		1052
1176	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1053	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1177	update_all_los(op->map, op->x, op->y);	1054	update_all_los (map, x, y);
1178		1055	}
1179	}	1056	}
1180		1057
1181	/*	1058	/*
1182	* merge_ob(op,top):	1059	* merge_ob(op,top):
1183	*	1060	*
1184	* This function goes through all objects below and including top, and	1061	* This function goes through all objects below and including top, and
1185	* merges op to the first matching object.	1062	* merges op to the first matching object.
1186	* If top is NULL, it is calculated.	1063	* If top is NULL, it is calculated.
1187	* Returns pointer to object if it succeded in the merge, otherwise NULL	1064	* Returns pointer to object if it succeded in the merge, otherwise NULL
1188	*/	1065	*/
1189		1066	object *
1190	object *merge_ob(object *op, object *top) {	1067	merge_ob (object *op, object *top)
		1068	{
1191	if(!op->nrof)	1069	if (!op->nrof)
1192	return 0;	1070	return 0;
1193	if(top==NULL)	1071
		1072	if (top)
1194	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1073	for (top = op; top && top->above; top = top->above)
		1074	;
		1075
1195	for(;top!=NULL;top=top->below) {	1076	for (; top; top = top->below)
		1077	{
1196	if(top==op)	1078	if (top == op)
1197	continue;	1079	continue;
1198	if (CAN_MERGE(op,top))	1080
1199	{	1081	if (object::can_merge (op, top))
		1082	{
1200	top->nrof+=op->nrof;	1083	top->nrof += op->nrof;
		1084
1201	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1085	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1202	op->weight = 0; /* Don't want any adjustements now */	1086	op->weight = 0; /* Don't want any adjustements now */
1203	remove_ob(op);	1087	op->destroy ();
1204	free_object(op);
1205	return top;	1088	return top;
1206	}	1089	}
1207	}	1090	}
		1091
1208	return NULL;	1092	return 0;
1209	}	1093	}
1210		1094
1211	/*	1095	/*
1212	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1096	* same as insert_ob_in_map except it handles separate coordinates and does a clean
1213	* job preparing multi-part monsters	1097	* job preparing multi-part monsters.
1214	*/	1098	*/
		1099	object *
1215	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1100	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1216	object* tmp;	1101	{
1217	if (op->head)	1102	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1218	op=op->head;	1103	{
1219	for (tmp=op;tmp;tmp=tmp->more){
1220	tmp->x=x+tmp->arch->clone.x;	1104	tmp->x = x + tmp->arch->clone.x;
1221	tmp->y=y+tmp->arch->clone.y;	1105	tmp->y = y + tmp->arch->clone.y;
1222	}	1106	}
		1107
1223	return insert_ob_in_map (op, m, originator, flag);	1108	return insert_ob_in_map (op, m, originator, flag);
1224	}	1109	}
1225		1110
1226	/*	1111	/*
1227	* insert_ob_in_map (op, map, originator, flag):	1112	* insert_ob_in_map (op, map, originator, flag):
1228	* This function inserts the object in the two-way linked list	1113	* This function inserts the object in the two-way linked list
…		…
1241	* Return value:	1126	* Return value:
1242	* new object if 'op' was merged with other object	1127	* new object if 'op' was merged with other object
1243	* NULL if 'op' was destroyed	1128	* NULL if 'op' was destroyed
1244	* just 'op' otherwise	1129	* just 'op' otherwise
1245	*/	1130	*/
1246		1131	object *
1247	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1132	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1248	{	1133	{
1249	object *tmp, *top, *floor=NULL;	1134	object *tmp, *top, *floor = NULL;
1250	sint16 x,y;
1251		1135
1252	if (QUERY_FLAG (op, FLAG_FREED)) {	1136	if (QUERY_FLAG (op, FLAG_FREED))
		1137	{
1253	LOG (llevError, "Trying to insert freed object!\n");	1138	LOG (llevError, "Trying to insert freed object!\n");
1254	return NULL;	1139	return NULL;
		1140	}
		1141
		1142	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1143	LOG (llevError, "Trying to insert already inserted object %s\n", op->debug_desc ());
		1144
		1145	op->remove ();
		1146
		1147	if (!m)
1255	}	1148	{
1256	if(m==NULL) {
1257	dump_object(op);	1149	char *dump = dump_object (op);
1258	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1150	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1151	free (dump);
1259	return op;	1152	return op;
1260	}	1153	}
		1154
1261	if(out_of_map(m,op->x,op->y)) {	1155	if (out_of_map (m, op->x, op->y))
		1156	{
1262	dump_object(op);	1157	char *dump = dump_object (op);
1263	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1158	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1264	#ifdef MANY_CORES	1159	#ifdef MANY_CORES
1265	/* Better to catch this here, as otherwise the next use of this object	1160	/* Better to catch this here, as otherwise the next use of this object
1266	* is likely to cause a crash. Better to find out where it is getting	1161	* is likely to cause a crash. Better to find out where it is getting
1267	* improperly inserted.	1162	* improperly inserted.
1268	*/	1163	*/
1269	abort();	1164	abort ();
1270	#endif	1165	#endif
		1166	free (dump);
1271	return op;	1167	return op;
		1168	}
		1169
		1170	if (object *more = op->more)
1272	}	1171	{
1273	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1172	if (!insert_ob_in_map (more, m, originator, flag))
1274	dump_object(op);	1173	{
1275	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1174	if (!op->head)
		1175	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1176
1276	return op;	1177	return 0;
1277	}
1278	if(op->more!=NULL) {
1279	/* The part may be on a different map. */
1280
1281	object *more = op->more;
1282
1283	/* We really need the caller to normalize coordinates - if
1284	* we set the map, that doesn't work if the location is within
1285	* a map and this is straddling an edge. So only if coordinate
1286	* is clear wrong do we normalize it.
1287	*/
1288	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1289	more->map = get_map_from_coord(m, &more->x, &more->y);
1290	} else if (!more->map) {
1291	/* For backwards compatibility - when not dealing with tiled maps,
1292	* more->map should always point to the parent.
1293	*/
1294	more->map = m;
1295	}	1178	}
		1179	}
1296		1180
1297	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1181	CLEAR_FLAG (op, FLAG_REMOVED);
1298	if ( ! op->head)	1182
1299	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1183	/* Ideally, the caller figures this out. However, it complicates a lot
1300	return NULL;	1184	* of areas of callers (eg, anything that uses find_free_spot would now
		1185	* need extra work
		1186	*/
		1187	if (!xy_normalise (m, op->x, op->y))
		1188	return 0;
		1189
		1190	op->map = m;
		1191	mapspace &ms = op->ms ();
		1192
		1193	/* this has to be done after we translate the coordinates.
		1194	*/
		1195	if (op->nrof && !(flag & INS_NO_MERGE))
		1196	for (tmp = ms.bot; tmp; tmp = tmp->above)
		1197	if (object::can_merge (op, tmp))
		1198	{
		1199	op->nrof += tmp->nrof;
		1200	tmp->destroy ();
1301	}	1201	}
		1202
		1203	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1204	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1205
		1206	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1207	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1208
		1209	if (flag & INS_BELOW_ORIGINATOR)
1302	}	1210	{
1303	CLEAR_FLAG(op,FLAG_REMOVED);	1211	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1212	{
		1213	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1214	abort ();
		1215	}
1304		1216
1305	/* Ideally, the caller figures this out. However, it complicates a lot	1217	op->above = originator;
1306	* of areas of callers (eg, anything that uses find_free_spot would now	1218	op->below = originator->below;
1307	* need extra work
1308	*/
1309	op->map=get_map_from_coord(m, &op->x, &op->y);
1310	x = op->x;
1311	y = op->y;
1312		1219
1313	/* this has to be done after we translate the coordinates.	1220	if (op->below)
1314	*/	1221	op->below->above = op;
1315	if(op->nrof && !(flag & INS_NO_MERGE)) {	1222	else
1316	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1223	ms.bot = op;
1317	if (CAN_MERGE(op,tmp)) {	1224
1318	op->nrof+=tmp->nrof;	1225	/* since *below* originator, no need to update top */
1319	remove_ob(tmp);	1226	originator->below = op;
1320	free_object(tmp);	1227	}
		1228	else
		1229	{
		1230	top = ms.bot;
		1231
		1232	/* If there are other objects, then */
		1233	if ((!(flag & INS_MAP_LOAD)) && top)
		1234	{
		1235	object *last = 0;
		1236
		1237	/*
		1238	* If there are multiple objects on this space, we do some trickier handling.
		1239	* We've already dealt with merging if appropriate.
		1240	* Generally, we want to put the new object on top. But if
		1241	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1242	* floor, we want to insert above that and no further.
		1243	* Also, if there are spell objects on this space, we stop processing
		1244	* once we get to them. This reduces the need to traverse over all of
		1245	* them when adding another one - this saves quite a bit of cpu time
		1246	* when lots of spells are cast in one area. Currently, it is presumed
		1247	* that flying non pickable objects are spell objects.
		1248	*/
		1249	for (top = ms.bot; top; top = top->above)
		1250	{
		1251	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1252	floor = top;
		1253
		1254	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1255	{
		1256	/* We insert above top, so we want this object below this */
		1257	top = top->below;
		1258	break;
		1259	}
		1260
		1261	last = top;
1321	}	1262	}
1322	}
1323		1263
1324	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1264	/* Don't want top to be NULL, so set it to the last valid object */
1325	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1265	top = last;
1326	if (!QUERY_FLAG(op, FLAG_ALIVE))
1327	CLEAR_FLAG(op, FLAG_NO_STEAL);
1328		1266
1329	if (flag & INS_BELOW_ORIGINATOR) {	1267	/* We let update_position deal with figuring out what the space
1330	if (originator->map != op->map || originator->x != op->x ||	1268	* looks like instead of lots of conditions here.
1331	originator->y != op->y) {	1269	* makes things faster, and effectively the same result.
1332	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1270	*/
1333	abort();	1271
		1272	/* Have object 'fall below' other objects that block view.
		1273	* Unless those objects are exits, type 66
		1274	* If INS_ON_TOP is used, don't do this processing
		1275	* Need to find the object that in fact blocks view, otherwise
		1276	* stacking is a bit odd.
		1277	*/
		1278	if (!(flag & INS_ON_TOP)
		1279	&& ms.flags () & P_BLOCKSVIEW
		1280	&& (op->face && !op->face->visibility))
		1281	{
		1282	for (last = top; last != floor; last = last->below)
		1283	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1284	break;
		1285
		1286	/* Check to see if we found the object that blocks view,
		1287	* and make sure we have a below pointer for it so that
		1288	* we can get inserted below this one, which requires we
		1289	* set top to the object below us.
		1290	*/
		1291	if (last && last->below && last != floor)
		1292	top = last->below;
		1293	}
		1294	} /* If objects on this space */
		1295
		1296	if (flag & INS_MAP_LOAD)
		1297	top = ms.top;
		1298
		1299	if (flag & INS_ABOVE_FLOOR_ONLY)
		1300	top = floor;
		1301
		1302	/* Top is the object that our object (op) is going to get inserted above.
		1303	*/
		1304
		1305	/* First object on this space */
		1306	if (!top)
		1307	{
		1308	op->above = ms.bot;
		1309
		1310	if (op->above)
		1311	op->above->below = op;
		1312
		1313	op->below = 0;
		1314	ms.bot = op;
1334	}	1315	}
1335	op->above = originator;
1336	op->below = originator->below;
1337	if (op->below) op->below->above = op;
1338	else SET_MAP_OB(op->map, op->x, op->y, op);
1339	/* since *below* originator, no need to update top */
1340	originator->below = op;
1341	} else {	1316	else
1342	/* If there are other objects, then */
1343	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1344	object *last=NULL;
1345	/*
1346	* If there are multiple objects on this space, we do some trickier handling.
1347	* We've already dealt with merging if appropriate.
1348	* Generally, we want to put the new object on top. But if
1349	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1350	* floor, we want to insert above that and no further.
1351	* Also, if there are spell objects on this space, we stop processing
1352	* once we get to them. This reduces the need to traverse over all of
1353	* them when adding another one - this saves quite a bit of cpu time
1354	* when lots of spells are cast in one area. Currently, it is presumed
1355	* that flying non pickable objects are spell objects.
1356	*/
1357
1358	while (top != NULL) {
1359	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1360	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1361	if (QUERY_FLAG(top, FLAG_NO_PICK)
1362	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1363	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1364	{
1365	/* We insert above top, so we want this object below this */
1366	top=top->below;
1367	break;
1368	}
1369	last = top;
1370	top = top->above;
1371	}
1372	/* Don't want top to be NULL, so set it to the last valid object */
1373	top = last;
1374
1375	/* We let update_position deal with figuring out what the space
1376	* looks like instead of lots of conditions here.
1377	* makes things faster, and effectively the same result.
1378	*/
1379
1380	/* Have object 'fall below' other objects that block view.
1381	* Unless those objects are exits, type 66
1382	* If INS_ON_TOP is used, don't do this processing
1383	* Need to find the object that in fact blocks view, otherwise
1384	* stacking is a bit odd.
1385	*/
1386	if (!(flag & INS_ON_TOP) &&
1387	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1388	(op->face && !op->face->visibility)) {
1389	for (last=top; last != floor; last=last->below)
1390	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1391	/* Check to see if we found the object that blocks view,
1392	* and make sure we have a below pointer for it so that
1393	* we can get inserted below this one, which requires we
1394	* set top to the object below us.
1395	*/
1396	if (last && last->below && last != floor) top=last->below;
1397	}
1398	} /* If objects on this space */
1399	if (flag & INS_MAP_LOAD)
1400	top = GET_MAP_TOP(op->map,op->x,op->y);
1401	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1402
1403	/* Top is the object that our object (op) is going to get inserted above.
1404	*/
1405
1406	/* First object on this space */
1407	if (!top) {
1408	op->above = GET_MAP_OB(op->map, op->x, op->y);
1409	if (op->above) op->above->below = op;
1410	op->below = NULL;
1411	SET_MAP_OB(op->map, op->x, op->y, op);
1412	} else { /* get inserted into the stack above top */	1317	{ /* get inserted into the stack above top */
1413	op->above = top->above;	1318	op->above = top->above;
		1319
		1320	if (op->above)
1414	if (op->above) op->above->below = op;	1321	op->above->below = op;
		1322
1415	op->below = top;	1323	op->below = top;
1416	top->above = op;	1324	top->above = op;
1417	}	1325	}
		1326
1418	if (op->above==NULL)	1327	if (!op->above)
1419	SET_MAP_TOP(op->map,op->x, op->y, op);	1328	ms.top = op;
1420	} /* else not INS_BELOW_ORIGINATOR */	1329	} /* else not INS_BELOW_ORIGINATOR */
1421		1330
1422	if(op->type==PLAYER)	1331	if (op->type == PLAYER)
		1332	{
1423	op->contr->do_los=1;	1333	op->contr->do_los = 1;
		1334	++op->map->players;
		1335	op->map->touch ();
		1336	}
1424		1337
		1338	op->map->dirty = true;
		1339
1425	/* If we have a floor, we know the player, if any, will be above	1340	/* If we have a floor, we know the player, if any, will be above
1426	* it, so save a few ticks and start from there.	1341	* it, so save a few ticks and start from there.
1427	*/	1342	*/
1428	if (!(flag & INS_MAP_LOAD))	1343	if (!(flag & INS_MAP_LOAD))
1429	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1344	if (object *pl = ms.player ())
1430	if (tmp->type == PLAYER)	1345	if (pl->contr->ns)
1431	tmp->contr->socket.update_look=1;	1346	pl->contr->ns->floorbox_update ();
1432	}
1433		1347
1434	/* If this object glows, it may affect lighting conditions that are	1348	/* If this object glows, it may affect lighting conditions that are
1435	* visible to others on this map. But update_all_los is really	1349	* visible to others on this map. But update_all_los is really
1436	* an inefficient way to do this, as it means los for all players	1350	* an inefficient way to do this, as it means los for all players
1437	* on the map will get recalculated. The players could very well	1351	* on the map will get recalculated. The players could very well
1438	* be far away from this change and not affected in any way -	1352	* be far away from this change and not affected in any way -
1439	* this should get redone to only look for players within range,	1353	* this should get redone to only look for players within range,
1440	* or just updating the P_NEED_UPDATE for spaces within this area	1354	* or just updating the P_UPTODATE for spaces within this area
1441	* of effect may be sufficient.	1355	* of effect may be sufficient.
1442	*/	1356	*/
1443	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1357	if (op->map->darkness && (op->glow_radius != 0))
1444	update_all_los(op->map, op->x, op->y);	1358	update_all_los (op->map, op->x, op->y);
1445		1359
1446
1447	/* updates flags (blocked, alive, no magic, etc) for this map space */	1360	/* updates flags (blocked, alive, no magic, etc) for this map space */
1448	update_object(op,UP_OBJ_INSERT);	1361	update_object (op, UP_OBJ_INSERT);
1449		1362
		1363	INVOKE_OBJECT (INSERT, op);
1450		1364
1451	/* Don't know if moving this to the end will break anything. However,	1365	/* Don't know if moving this to the end will break anything. However,
1452	* we want to have update_look set above before calling this.	1366	* we want to have floorbox_update called before calling this.
1453	*	1367	*
1454	* check_move_on() must be after this because code called from	1368	* check_move_on() must be after this because code called from
1455	* check_move_on() depends on correct map flags (so functions like	1369	* check_move_on() depends on correct map flags (so functions like
1456	* blocked() and wall() work properly), and these flags are updated by	1370	* blocked() and wall() work properly), and these flags are updated by
1457	* update_object().	1371	* update_object().
1458	*/	1372	*/
1459		1373
1460	/* if this is not the head or flag has been passed, don't check walk on status */	1374	/* if this is not the head or flag has been passed, don't check walk on status */
1461
1462	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1375	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1376	{
1463	if (check_move_on(op, originator))	1377	if (check_move_on (op, originator))
1464	return NULL;	1378	return 0;
1465		1379
1466	/* If we are a multi part object, lets work our way through the check	1380	/* If we are a multi part object, lets work our way through the check
1467	* walk on's.	1381	* walk on's.
1468	*/	1382	*/
1469	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1383	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1470	if (check_move_on (tmp, originator))	1384	if (check_move_on (tmp, originator))
1471	return NULL;	1385	return 0;
1472	}	1386	}
		1387
1473	return op;	1388	return op;
1474	}	1389	}
1475		1390
1476	/* this function inserts an object in the map, but if it	1391	/* this function inserts an object in the map, but if it
1477	* finds an object of its own type, it'll remove that one first.	1392	* finds an object of its own type, it'll remove that one first.
1478	* op is the object to insert it under: supplies x and the map.	1393	* op is the object to insert it under: supplies x and the map.
1479	*/	1394	*/
		1395	void
1480	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1396	replace_insert_ob_in_map (const char *arch_string, object *op)
1481	object *tmp;	1397	{
1482	object *tmp1;	1398	object *tmp, *tmp1;
1483		1399
1484	/* first search for itself and remove any old instances */	1400	/* first search for itself and remove any old instances */
1485		1401
1486	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1402	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1487	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1403	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1488	remove_ob(tmp);	1404	tmp->destroy ();
1489	free_object(tmp);
1490	}
1491	}
1492		1405
1493	tmp1=arch_to_object(find_archetype(arch_string));	1406	tmp1 = arch_to_object (archetype::find (arch_string));
1494		1407
1495		1408	tmp1->x = op->x;
1496	tmp1->x = op->x; tmp1->y = op->y;	1409	tmp1->y = op->y;
1497	insert_ob_in_map(tmp1,op->map,op,0);	1410	insert_ob_in_map (tmp1, op->map, op, 0);
1498	}	1411	}
		1412
		1413	object *
		1414	object::insert_at (object *where, object *originator, int flags)
		1415	{
		1416	where->map->insert (this, where->x, where->y, originator, flags);
		1417	}
1499		1418
1500	/*	1419	/*
1501	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1420	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1502	* is returned contains nr objects, and the remaining parts contains	1421	* is returned contains nr objects, and the remaining parts contains
1503	* the rest (or is removed and freed if that number is 0).	1422	* the rest (or is removed and freed if that number is 0).
1504	* On failure, NULL is returned, and the reason put into the	1423	* On failure, NULL is returned, and the reason put into the
1505	* global static errmsg array.	1424	* global static errmsg array.
1506	*/	1425	*/
1507		1426	object *
1508	object *get_split_ob(object *orig_ob, uint32 nr) {	1427	get_split_ob (object *orig_ob, uint32 nr)
		1428	{
1509	object *newob;	1429	object *newob;
1510	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1430	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1511		1431
1512	if(orig_ob->nrof<nr) {	1432	if (orig_ob->nrof < nr)
1513	sprintf(errmsg,"There are only %d %ss.",	1433	{
1514	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1434	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1515	return NULL;	1435	return NULL;
1516	}	1436	}
		1437
1517	newob = object_create_clone(orig_ob);	1438	newob = object_create_clone (orig_ob);
		1439
1518	if((orig_ob->nrof-=nr)<1) {	1440	if ((orig_ob->nrof -= nr) < 1)
1519	if ( ! is_removed)	1441	orig_ob->destroy (1);
1520	remove_ob(orig_ob);
1521	free_object2(orig_ob, 1);
1522	}
1523	else if ( ! is_removed) {	1442	else if (!is_removed)
		1443	{
1524	if(orig_ob->env!=NULL)	1444	if (orig_ob->env != NULL)
1525	sub_weight (orig_ob->env,orig_ob->weight*nr);	1445	sub_weight (orig_ob->env, orig_ob->weight * nr);
1526	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1446	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1447	{
1527	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1448	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1528	LOG(llevDebug,
1529	"Error, Tried to split object whose map is not in memory.\n");	1449	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1530	return NULL;	1450	return NULL;
1531	}	1451	}
1532	}	1452	}
		1453
1533	newob->nrof=nr;	1454	newob->nrof = nr;
1534		1455
1535	return newob;	1456	return newob;
1536	}	1457	}
1537		1458
1538	/*	1459	/*
1539	* decrease_ob_nr(object, number) decreases a specified number from	1460	* decrease_ob_nr(object, number) decreases a specified number from
1540	* the amount of an object. If the amount reaches 0, the object	1461	* the amount of an object. If the amount reaches 0, the object
1541	* is subsequently removed and freed.	1462	* is subsequently removed and freed.
1542	*	1463	*
1543	* Return value: 'op' if something is left, NULL if the amount reached 0	1464	* Return value: 'op' if something is left, NULL if the amount reached 0
1544	*/	1465	*/
1545		1466
		1467	object *
1546	object *decrease_ob_nr (object *op, uint32 i)	1468	decrease_ob_nr (object *op, uint32 i)
1547	{	1469	{
1548	object *tmp;	1470	object *tmp;
1549	player *pl;
1550		1471
1551	if (i == 0) /* objects with op->nrof require this check */	1472	if (i == 0) /* objects with op->nrof require this check */
1552	return op;	1473	return op;
1553		1474
1554	if (i > op->nrof)	1475	if (i > op->nrof)
1555	i = op->nrof;	1476	i = op->nrof;
1556		1477
1557	if (QUERY_FLAG (op, FLAG_REMOVED))	1478	if (QUERY_FLAG (op, FLAG_REMOVED))
		1479	op->nrof -= i;
		1480	else if (op->env)
		1481	{
		1482	/* is this object in the players inventory, or sub container
		1483	* therein?
		1484	*/
		1485	tmp = op->in_player ();
		1486	/* nope. Is this a container the player has opened?
		1487	* If so, set tmp to that player.
		1488	* IMO, searching through all the players will mostly
		1489	* likely be quicker than following op->env to the map,
		1490	* and then searching the map for a player.
		1491	*/
		1492	if (!tmp)
		1493	for_all_players (pl)
		1494	if (pl->ob->container == op->env)
		1495	{
		1496	tmp = pl->ob;
		1497	break;
		1498	}
		1499
		1500	if (i < op->nrof)
		1501	{
		1502	sub_weight (op->env, op->weight * i);
		1503	op->nrof -= i;
		1504	if (tmp)
		1505	esrv_send_item (tmp, op);
		1506	}
		1507	else
		1508	{
		1509	op->remove ();
		1510	op->nrof = 0;
		1511	if (tmp)
		1512	esrv_del_item (tmp->contr, op->count);
		1513	}
1558	{	1514	}
		1515	else
		1516	{
		1517	object *above = op->above;
		1518
		1519	if (i < op->nrof)
1559	op->nrof -= i;	1520	op->nrof -= i;
1560	}	1521	else
1561	else if (op->env != NULL)
1562	{
1563	/* is this object in the players inventory, or sub container
1564	* therein?
1565	*/	1522	{
1566	tmp = is_player_inv (op->env);	1523	op->remove ();
1567	/* nope. Is this a container the player has opened?	1524	op->nrof = 0;
1568	* If so, set tmp to that player.
1569	* IMO, searching through all the players will mostly
1570	* likely be quicker than following op->env to the map,
1571	* and then searching the map for a player.
1572	*/
1573	if (!tmp) {
1574	for (pl=first_player; pl; pl=pl->next)
1575	if (pl->ob->container == op->env) break;
1576	if (pl) tmp=pl->ob;
1577	else tmp=NULL;
1578	}	1525	}
1579		1526
1580	if (i < op->nrof) {
1581	sub_weight (op->env, op->weight * i);
1582	op->nrof -= i;
1583	if (tmp) {
1584	esrv_send_item(tmp, op);
1585	}
1586	} else {
1587	remove_ob (op);
1588	op->nrof = 0;
1589	if (tmp) {
1590	esrv_del_item(tmp->contr, op->count);
1591	}
1592	}
1593	}
1594	else
1595	{
1596	object *above = op->above;
1597
1598	if (i < op->nrof) {
1599	op->nrof -= i;
1600	} else {
1601	remove_ob (op);
1602	op->nrof = 0;
1603	}
1604	/* Since we just removed op, op->above is null */	1527	/* Since we just removed op, op->above is null */
1605	for (tmp = above; tmp != NULL; tmp = tmp->above)	1528	for (tmp = above; tmp; tmp = tmp->above)
1606	if (tmp->type == PLAYER) {	1529	if (tmp->type == PLAYER)
		1530	{
1607	if (op->nrof)	1531	if (op->nrof)
1608	esrv_send_item(tmp, op);	1532	esrv_send_item (tmp, op);
1609	else	1533	else
1610	esrv_del_item(tmp->contr, op->count);	1534	esrv_del_item (tmp->contr, op->count);
1611	}	1535	}
1612	}	1536	}
1613		1537
1614	if (op->nrof) {	1538	if (op->nrof)
1615	return op;	1539	return op;
1616	} else {	1540	else
1617	free_object (op);	1541	{
		1542	op->destroy ();
1618	return NULL;	1543	return 0;
1619	}	1544	}
1620	}	1545	}
1621		1546
1622	/*	1547	/*
1623	* add_weight(object, weight) adds the specified weight to an object,	1548	* add_weight(object, weight) adds the specified weight to an object,
1624	* and also updates how much the environment(s) is/are carrying.	1549	* and also updates how much the environment(s) is/are carrying.
1625	*/	1550	*/
1626		1551
		1552	void
1627	void add_weight (object *op, signed long weight) {	1553	add_weight (object *op, signed long weight)
		1554	{
1628	while (op!=NULL) {	1555	while (op != NULL)
		1556	{
1629	if (op->type == CONTAINER) {	1557	if (op->type == CONTAINER)
1630	weight=(signed long)(weight*(100-op->stats.Str)/100);	1558	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1631	}	1559
1632	op->carrying+=weight;	1560	op->carrying += weight;
1633	op=op->env;	1561	op = op->env;
1634	}	1562	}
1635	}	1563	}
1636		1564
		1565	object *
		1566	insert_ob_in_ob (object *op, object *where)
		1567	{
		1568	if (!where)
		1569	{
		1570	char *dump = dump_object (op);
		1571	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1572	free (dump);
		1573	return op;
		1574	}
		1575
		1576	if (where->head)
		1577	{
		1578	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1579	where = where->head;
		1580	}
		1581
		1582	return where->insert (op);
		1583	}
		1584
1637	/*	1585	/*
1638	* insert_ob_in_ob(op,environment):	1586	* env->insert (op)
1639	* This function inserts the object op in the linked list	1587	* This function inserts the object op in the linked list
1640	* inside the object environment.	1588	* inside the object environment.
1641	*	1589	*
1642	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1643	* the inventory at the last position or next to other objects of the same
1644	* type.
1645	* Frank: Now sorted by type, archetype and magic!
1646	*
1647	* The function returns now pointer to inserted item, and return value can	1590	* The function returns now pointer to inserted item, and return value can
1648	* be != op, if items are merged. -Tero	1591	* be != op, if items are merged. -Tero
1649	*/	1592	*/
1650		1593
1651	object *insert_ob_in_ob(object *op,object *where) {	1594	object *
		1595	object::insert (object *op)
		1596	{
1652	object *tmp, *otmp;	1597	object *tmp, *otmp;
1653		1598
1654	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1599	if (!QUERY_FLAG (op, FLAG_REMOVED))
1655	dump_object(op);	1600	op->remove ();
1656	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1601
1657	return op;
1658	}
1659	if(where==NULL) {
1660	dump_object(op);
1661	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1662	return op;
1663	}
1664	if (where->head) {
1665	LOG(llevDebug,
1666	"Warning: Tried to insert object wrong part of multipart object.\n");
1667	where = where->head;
1668	}
1669	if (op->more) {	1602	if (op->more)
		1603	{
1670	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1604	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1671	&op->name, op->count);
1672	return op;	1605	return op;
1673	}	1606	}
		1607
1674	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1608	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1675	CLEAR_FLAG(op, FLAG_REMOVED);	1609	CLEAR_FLAG (op, FLAG_REMOVED);
1676	if(op->nrof) {	1610	if (op->nrof)
		1611	{
1677	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1612	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1678	if ( CAN_MERGE(tmp,op) ) {	1613	if (object::can_merge (tmp, op))
		1614	{
1679	/* return the original object and remove inserted object	1615	/* return the original object and remove inserted object
1680	(client needs the original object) */	1616	(client needs the original object) */
1681	tmp->nrof += op->nrof;	1617	tmp->nrof += op->nrof;
1682	/* Weight handling gets pretty funky. Since we are adding to	1618	/* Weight handling gets pretty funky. Since we are adding to
1683	* tmp->nrof, we need to increase the weight.	1619	* tmp->nrof, we need to increase the weight.
1684	*/	1620	*/
1685	add_weight (where, op->weight*op->nrof);	1621	add_weight (this, op->weight * op->nrof);
1686	SET_FLAG(op, FLAG_REMOVED);	1622	SET_FLAG (op, FLAG_REMOVED);
1687	free_object(op); /* free the inserted object */	1623	op->destroy (); /* free the inserted object */
1688	op = tmp;	1624	op = tmp;
1689	remove_ob (op); /* and fix old object's links */	1625	op->remove (); /* and fix old object's links */
1690	CLEAR_FLAG(op, FLAG_REMOVED);	1626	CLEAR_FLAG (op, FLAG_REMOVED);
1691	break;	1627	break;
1692	}	1628	}
1693		1629
1694	/* I assume combined objects have no inventory	1630	/* I assume combined objects have no inventory
1695	* We add the weight - this object could have just been removed	1631	* We add the weight - this object could have just been removed
1696	* (if it was possible to merge). calling remove_ob will subtract	1632	* (if it was possible to merge). calling remove_ob will subtract
1697	* the weight, so we need to add it in again, since we actually do	1633	* the weight, so we need to add it in again, since we actually do
1698	* the linking below	1634	* the linking below
1699	*/	1635	*/
1700	add_weight (where, op->weight*op->nrof);	1636	add_weight (this, op->weight * op->nrof);
		1637	}
1701	} else	1638	else
1702	add_weight (where, (op->weight+op->carrying));	1639	add_weight (this, (op->weight + op->carrying));
1703		1640
1704	otmp=is_player_inv(where);	1641	otmp = this->in_player ();
1705	if (otmp&&otmp->contr!=NULL) {	1642	if (otmp && otmp->contr)
1706	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1643	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1707	fix_player(otmp);	1644	otmp->update_stats ();
1708	}
1709		1645
1710	op->map=NULL;	1646	op->map = 0;
1711	op->env=where;	1647	op->env = this;
1712	op->above=NULL;	1648	op->above = 0;
1713	op->below=NULL;	1649	op->below = 0;
1714	op->x=0,op->y=0;	1650	op->x = 0, op->y = 0;
1715		1651
1716	/* reset the light list and los of the players on the map */	1652	/* reset the light list and los of the players on the map */
1717	if((op->glow_radius!=0)&&where->map)	1653	if ((op->glow_radius != 0) && map)
1718	{	1654	{
1719	#ifdef DEBUG_LIGHTS	1655	#ifdef DEBUG_LIGHTS
1720	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1656	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1721	op->name);
1722	#endif /* DEBUG_LIGHTS */	1657	#endif /* DEBUG_LIGHTS */
1723	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1658	if (map->darkness)
		1659	update_all_los (map, x, y);
1724	}	1660	}
1725		1661
1726	/* Client has no idea of ordering so lets not bother ordering it here.	1662	/* Client has no idea of ordering so lets not bother ordering it here.
1727	* It sure simplifies this function...	1663	* It sure simplifies this function...
1728	*/	1664	*/
1729	if (where->inv==NULL)	1665	if (!inv)
1730	where->inv=op;	1666	inv = op;
1731	else {	1667	else
		1668	{
1732	op->below = where->inv;	1669	op->below = inv;
1733	op->below->above = op;	1670	op->below->above = op;
1734	where->inv = op;	1671	inv = op;
1735	}	1672	}
		1673
		1674	INVOKE_OBJECT (INSERT, this);
		1675
1736	return op;	1676	return op;
1737	}	1677	}
1738		1678
1739	/*	1679	/*
1740	* Checks if any objects has a move_type that matches objects	1680	* Checks if any objects has a move_type that matches objects
…		…
1754	*	1694	*
1755	* MSW 2001-07-08: Check all objects on space, not just those below	1695	* MSW 2001-07-08: Check all objects on space, not just those below
1756	* object being inserted. insert_ob_in_map may not put new objects	1696	* object being inserted. insert_ob_in_map may not put new objects
1757	* on top.	1697	* on top.
1758	*/	1698	*/
1759		1699	int
1760	int check_move_on (object *op, object *originator)	1700	check_move_on (object *op, object *originator)
1761	{	1701	{
1762	object *tmp;	1702	object *tmp;
1763	tag_t tag;
1764	mapstruct *m=op->map;	1703	maptile *m = op->map;
1765	int x=op->x, y=op->y;	1704	int x = op->x, y = op->y;
		1705
1766	MoveType move_on, move_slow, move_block;	1706	MoveType move_on, move_slow, move_block;
1767		1707
1768	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1708	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1769	return 0;	1709	return 0;
1770		1710
1771	tag = op->count;
1772
1773	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1711	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1774	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1712	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1775	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1713	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1776		1714
1777	/* if nothing on this space will slow op down or be applied,	1715	/* if nothing on this space will slow op down or be applied,
1778	* no need to do checking below. have to make sure move_type	1716	* no need to do checking below. have to make sure move_type
1779	* is set, as lots of objects don't have it set - we treat that	1717	* is set, as lots of objects don't have it set - we treat that
1780	* as walking.	1718	* as walking.
1781	*/	1719	*/
1782	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1720	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1783	return 0;	1721	return 0;
1784		1722
1785	/* This is basically inverse logic of that below - basically,	1723	/* This is basically inverse logic of that below - basically,
1786	* if the object can avoid the move on or slow move, they do so,	1724	* if the object can avoid the move on or slow move, they do so,
1787	* but can't do it if the alternate movement they are using is	1725	* but can't do it if the alternate movement they are using is
1788	* blocked. Logic on this seems confusing, but does seem correct.	1726	* blocked. Logic on this seems confusing, but does seem correct.
1789	*/	1727	*/
1790	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1728	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1791	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1729	return 0;
1792		1730
1793	/* The objects have to be checked from top to bottom.	1731	/* The objects have to be checked from top to bottom.
1794	* Hence, we first go to the top:	1732	* Hence, we first go to the top:
1795	*/	1733	*/
1796		1734
1797	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1735	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1798	tmp->above!=NULL; tmp=tmp->above) {	1736	{
1799	/* Trim the search when we find the first other spell effect	1737	/* Trim the search when we find the first other spell effect
1800	* this helps performance so that if a space has 50 spell objects,	1738	* this helps performance so that if a space has 50 spell objects,
1801	* we don't need to check all of them.	1739	* we don't need to check all of them.
1802	*/	1740	*/
1803	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1741	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1742	break;
		1743	}
		1744
		1745	for (; tmp; tmp = tmp->below)
1804	}	1746	{
1805	for(;tmp!=NULL; tmp=tmp->below) {	1747	if (tmp == op)
1806	if (tmp == op) continue; /* Can't apply yourself */	1748	continue; /* Can't apply yourself */
1807		1749
1808	/* Check to see if one of the movement types should be slowed down.	1750	/* Check to see if one of the movement types should be slowed down.
1809	* Second check makes sure that the movement types not being slowed	1751	* Second check makes sure that the movement types not being slowed
1810	* (~slow_move) is not blocked on this space - just because the	1752	* (~slow_move) is not blocked on this space - just because the
1811	* space doesn't slow down swimming (for example), if you can't actually	1753	* space doesn't slow down swimming (for example), if you can't actually
1812	* swim on that space, can't use it to avoid the penalty.	1754	* swim on that space, can't use it to avoid the penalty.
1813	*/	1755	*/
1814	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1756	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1757	{
1815	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1758	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1816	((op->move_type & tmp->move_slow) &&
1817	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1759	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1760	{
1818		1761
1819	float diff;	1762	float
1820
1821	diff = tmp->move_slow_penalty*FABS(op->speed);	1763	diff = tmp->move_slow_penalty * fabs (op->speed);
		1764
1822	if (op->type == PLAYER) {	1765	if (op->type == PLAYER)
1823	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1766	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1824	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1767	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1825	diff /= 4.0;	1768	diff /= 4.0;
1826	}	1769
1827	}
1828	op->speed_left -= diff;	1770	op->speed_left -= diff;
1829	}	1771	}
1830	}	1772	}
1831		1773
1832	/* Basically same logic as above, except now for actual apply. */	1774	/* Basically same logic as above, except now for actual apply. */
1833	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1775	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1834	((op->move_type & tmp->move_on) &&
1835	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1776	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1836		1777	{
1837	move_apply(tmp, op, originator);	1778	move_apply (tmp, op, originator);
		1779
1838	if (was_destroyed (op, tag))	1780	if (op->destroyed ())
1839	return 1;	1781	return 1;
1840		1782
1841	/* what the person/creature stepped onto has moved the object	1783	/* what the person/creature stepped onto has moved the object
1842	* someplace new. Don't process any further - if we did,	1784	* someplace new. Don't process any further - if we did,
1843	* have a feeling strange problems would result.	1785	* have a feeling strange problems would result.
1844	*/	1786	*/
1845	if (op->map != m || op->x != x || op->y != y) return 0;	1787	if (op->map != m || op->x != x || op->y != y)
		1788	return 0;
1846	}	1789	}
1847	}	1790	}
		1791
1848	return 0;	1792	return 0;
1849	}	1793	}
1850		1794
1851	/*	1795	/*
1852	* present_arch(arch, map, x, y) searches for any objects with	1796	* present_arch(arch, map, x, y) searches for any objects with
1853	* a matching archetype at the given map and coordinates.	1797	* a matching archetype at the given map and coordinates.
1854	* The first matching object is returned, or NULL if none.	1798	* The first matching object is returned, or NULL if none.
1855	*/	1799	*/
1856		1800	object *
1857	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1801	present_arch (const archetype *at, maptile *m, int x, int y)
1858	object *tmp;	1802	{
1859	if(m==NULL || out_of_map(m,x,y)) {	1803	if (!m || out_of_map (m, x, y))
		1804	{
1860	LOG(llevError,"Present_arch called outside map.\n");	1805	LOG (llevError, "Present_arch called outside map.\n");
1861	return NULL;	1806	return NULL;
1862	}	1807	}
1863	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1808
		1809	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1864	if(tmp->arch == at)	1810	if (tmp->arch == at)
1865	return tmp;	1811	return tmp;
		1812
1866	return NULL;	1813	return NULL;
1867	}	1814	}
1868		1815
1869	/*	1816	/*
1870	* present(type, map, x, y) searches for any objects with	1817	* present(type, map, x, y) searches for any objects with
1871	* a matching type variable at the given map and coordinates.	1818	* a matching type variable at the given map and coordinates.
1872	* The first matching object is returned, or NULL if none.	1819	* The first matching object is returned, or NULL if none.
1873	*/	1820	*/
1874		1821	object *
1875	object *present(unsigned char type,mapstruct *m, int x,int y) {	1822	present (unsigned char type, maptile *m, int x, int y)
1876	object *tmp;	1823	{
1877	if(out_of_map(m,x,y)) {	1824	if (out_of_map (m, x, y))
		1825	{
1878	LOG(llevError,"Present called outside map.\n");	1826	LOG (llevError, "Present called outside map.\n");
1879	return NULL;	1827	return NULL;
1880	}	1828	}
1881	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1829
		1830	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1882	if(tmp->type==type)	1831	if (tmp->type == type)
1883	return tmp;	1832	return tmp;
		1833
1884	return NULL;	1834	return NULL;
1885	}	1835	}
1886		1836
1887	/*	1837	/*
1888	* present_in_ob(type, object) searches for any objects with	1838	* present_in_ob(type, object) searches for any objects with
1889	* a matching type variable in the inventory of the given object.	1839	* a matching type variable in the inventory of the given object.
1890	* The first matching object is returned, or NULL if none.	1840	* The first matching object is returned, or NULL if none.
1891	*/	1841	*/
1892		1842	object *
1893	object *present_in_ob(unsigned char type, const object *op) {	1843	present_in_ob (unsigned char type, const object *op)
1894	object *tmp;	1844	{
1895	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1845	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1896	if(tmp->type==type)	1846	if (tmp->type == type)
1897	return tmp;	1847	return tmp;
		1848
1898	return NULL;	1849	return NULL;
1899	}	1850	}
1900		1851
1901	/*	1852	/*
1902	* present_in_ob (type, str, object) searches for any objects with	1853	* present_in_ob (type, str, object) searches for any objects with
…		…
1910	* str is the string to match against. Note that we match against	1861	* str is the string to match against. Note that we match against
1911	* the object name, not the archetype name. this is so that the	1862	* the object name, not the archetype name. this is so that the
1912	* spell code can use one object type (force), but change it's name	1863	* spell code can use one object type (force), but change it's name
1913	* to be unique.	1864	* to be unique.
1914	*/	1865	*/
1915		1866	object *
1916	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1867	present_in_ob_by_name (int type, const char *str, const object *op)
1917	object *tmp;	1868	{
1918
1919	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1869	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1920	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1870	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1921	return tmp;	1871	return tmp;
1922	}	1872
1923	return NULL;	1873	return 0;
1924	}	1874	}
1925		1875
1926	/*	1876	/*
1927	* present_arch_in_ob(archetype, object) searches for any objects with	1877	* present_arch_in_ob(archetype, object) searches for any objects with
1928	* a matching archetype in the inventory of the given object.	1878	* a matching archetype in the inventory of the given object.
1929	* The first matching object is returned, or NULL if none.	1879	* The first matching object is returned, or NULL if none.
1930	*/	1880	*/
1931		1881	object *
1932	object *present_arch_in_ob(const archetype *at, const object *op) {	1882	present_arch_in_ob (const archetype *at, const object *op)
1933	object *tmp;	1883	{
1934	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1884	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1935	if( tmp->arch == at)	1885	if (tmp->arch == at)
1936	return tmp;	1886	return tmp;
		1887
1937	return NULL;	1888	return NULL;
1938	}	1889	}
1939		1890
1940	/*	1891	/*
1941	* activate recursively a flag on an object inventory	1892	* activate recursively a flag on an object inventory
1942	*/	1893	*/
		1894	void
1943	void flag_inv(object*op, int flag){	1895	flag_inv (object *op, int flag)
1944	object *tmp;	1896	{
1945	if(op->inv)	1897	if (op->inv)
1946	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1898	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1899	{
1947	SET_FLAG(tmp, flag);	1900	SET_FLAG (tmp, flag);
1948	flag_inv(tmp,flag);	1901	flag_inv (tmp, flag);
1949	}	1902	}
		1903	}
		1904
1950	}/*	1905	/*
1951	* desactivate recursively a flag on an object inventory	1906	* deactivate recursively a flag on an object inventory
1952	*/	1907	*/
		1908	void
1953	void unflag_inv(object*op, int flag){	1909	unflag_inv (object *op, int flag)
1954	object *tmp;	1910	{
1955	if(op->inv)	1911	if (op->inv)
1956	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1912	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1913	{
1957	CLEAR_FLAG(tmp, flag);	1914	CLEAR_FLAG (tmp, flag);
1958	unflag_inv(tmp,flag);	1915	unflag_inv (tmp, flag);
1959	}	1916	}
1960	}	1917	}
1961		1918
1962	/*	1919	/*
1963	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1920	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1964	* all it's inventory (recursively).	1921	* all it's inventory (recursively).
1965	* If checksums are used, a player will get set_cheat called for	1922	* If checksums are used, a player will get set_cheat called for
1966	* him/her-self and all object carried by a call to this function.	1923	* him/her-self and all object carried by a call to this function.
1967	*/	1924	*/
1968		1925	void
1969	void set_cheat(object *op) {	1926	set_cheat (object *op)
		1927	{
1970	SET_FLAG(op, FLAG_WAS_WIZ);	1928	SET_FLAG (op, FLAG_WAS_WIZ);
1971	flag_inv(op, FLAG_WAS_WIZ);	1929	flag_inv (op, FLAG_WAS_WIZ);
1972	}	1930	}
1973		1931
1974	/*	1932	/*
1975	* find_free_spot(object, map, x, y, start, stop) will search for	1933	* find_free_spot(object, map, x, y, start, stop) will search for
1976	* a spot at the given map and coordinates which will be able to contain	1934	* a spot at the given map and coordinates which will be able to contain
…		…
1990	* because arch_blocked (now ob_blocked) needs to know the movement type	1948	* because arch_blocked (now ob_blocked) needs to know the movement type
1991	* to know if the space in question will block the object. We can't use	1949	* to know if the space in question will block the object. We can't use
1992	* the archetype because that isn't correct if the monster has been	1950	* the archetype because that isn't correct if the monster has been
1993	* customized, changed states, etc.	1951	* customized, changed states, etc.
1994	*/	1952	*/
1995		1953	int
1996	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1954	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1955	{
1997	int i,index=0, flag;	1956	int index = 0, flag;
1998	static int altern[SIZEOFFREE];	1957	int altern[SIZEOFFREE];
1999		1958
2000	for(i=start;i<stop;i++) {	1959	for (int i = start; i < stop; i++)
		1960	{
2001	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1961	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2002	if(!flag)	1962	if (!flag)
2003	altern[index++]=i;	1963	altern [index++] = i;
2004		1964
2005	/* Basically, if we find a wall on a space, we cut down the search size.	1965	/* Basically, if we find a wall on a space, we cut down the search size.
2006	* In this way, we won't return spaces that are on another side of a wall.	1966	* In this way, we won't return spaces that are on another side of a wall.
2007	* This mostly work, but it cuts down the search size in all directions -	1967	* This mostly work, but it cuts down the search size in all directions -
2008	* if the space being examined only has a wall to the north and empty	1968	* if the space being examined only has a wall to the north and empty
2009	* spaces in all the other directions, this will reduce the search space	1969	* spaces in all the other directions, this will reduce the search space
2010	* to only the spaces immediately surrounding the target area, and	1970	* to only the spaces immediately surrounding the target area, and
2011	* won't look 2 spaces south of the target space.	1971	* won't look 2 spaces south of the target space.
2012	*/	1972	*/
2013	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	1973	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2014	stop=maxfree[i];	1974	stop = maxfree[i];
2015	}	1975	}
2016	if(!index) return -1;
2017	return altern[RANDOM()%index];
2018	}
2019		1976
		1977	if (!index)
		1978	return -1;
		1979
		1980	return altern [rndm (index)];
		1981	}
		1982
2020	/*	1983	/*
2021	* find_first_free_spot(archetype, mapstruct, x, y) works like	1984	* find_first_free_spot(archetype, maptile, x, y) works like
2022	* find_free_spot(), but it will search max number of squares.	1985	* find_free_spot(), but it will search max number of squares.
2023	* But it will return the first available spot, not a random choice.	1986	* But it will return the first available spot, not a random choice.
2024	* Changed 0.93.2: Have it return -1 if there is no free spot available.	1987	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2025	*/	1988	*/
2026		1989	int
2027	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	1990	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2028	int i;	1991	{
2029	for(i=0;i<SIZEOFFREE;i++) {	1992	for (int i = 0; i < SIZEOFFREE; i++)
2030	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	1993	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2031	return i;	1994	return i;
2032	}	1995
2033	return -1;	1996	return -1;
2034	}	1997	}
2035		1998
2036	/*	1999	/*
2037	* The function permute(arr, begin, end) randomly reorders the array	2000	* The function permute(arr, begin, end) randomly reorders the array
2038	* arr[begin..end-1].	2001	* arr[begin..end-1].
		2002	* now uses a fisher-yates shuffle, old permute was broken
2039	*/	2003	*/
		2004	static void
2040	static void permute(int *arr, int begin, int end)	2005	permute (int *arr, int begin, int end)
2041	{	2006	{
2042	int i, j, tmp, len;	2007	arr += begin;
		2008	end -= begin;
2043		2009
2044	len = end-begin;	2010	while (--end)
2045	for(i = begin; i < end; i++)	2011	swap (arr [end], arr [rndm (end + 1)]);
2046	{
2047	j = begin+RANDOM()%len;
2048
2049	tmp = arr[i];
2050	arr[i] = arr[j];
2051	arr[j] = tmp;
2052	}
2053	}	2012	}
2054		2013
2055	/* new function to make monster searching more efficient, and effective!	2014	/* new function to make monster searching more efficient, and effective!
2056	* This basically returns a randomized array (in the passed pointer) of	2015	* This basically returns a randomized array (in the passed pointer) of
2057	* the spaces to find monsters. In this way, it won't always look for	2016	* the spaces to find monsters. In this way, it won't always look for
2058	* monsters to the north first. However, the size of the array passed	2017	* monsters to the north first. However, the size of the array passed
2059	* covers all the spaces, so within that size, all the spaces within	2018	* covers all the spaces, so within that size, all the spaces within
2060	* the 3x3 area will be searched, just not in a predictable order.	2019	* the 3x3 area will be searched, just not in a predictable order.
2061	*/	2020	*/
		2021	void
2062	void get_search_arr(int *search_arr)	2022	get_search_arr (int *search_arr)
2063	{	2023	{
2064	int i;	2024	int i;
2065		2025
2066	for(i = 0; i < SIZEOFFREE; i++)	2026	for (i = 0; i < SIZEOFFREE; i++)
2067	{
2068	search_arr[i] = i;	2027	search_arr[i] = i;
2069	}
2070		2028
2071	permute(search_arr, 1, SIZEOFFREE1+1);	2029	permute (search_arr, 1, SIZEOFFREE1 + 1);
2072	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2030	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2073	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2031	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2074	}	2032	}
2075		2033
2076	/*	2034	/*
2077	* find_dir(map, x, y, exclude) will search some close squares in the	2035	* find_dir(map, x, y, exclude) will search some close squares in the
2078	* given map at the given coordinates for live objects.	2036	* given map at the given coordinates for live objects.
…		…
2083	* Perhaps incorrectly, but I'm making the assumption that exclude	2041	* Perhaps incorrectly, but I'm making the assumption that exclude
2084	* is actually want is going to try and move there. We need this info	2042	* is actually want is going to try and move there. We need this info
2085	* because we have to know what movement the thing looking to move	2043	* because we have to know what movement the thing looking to move
2086	* there is capable of.	2044	* there is capable of.
2087	*/	2045	*/
2088		2046	int
2089	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2047	find_dir (maptile *m, int x, int y, object *exclude)
		2048	{
2090	int i,max=SIZEOFFREE, mflags;	2049	int i, max = SIZEOFFREE, mflags;
		2050
2091	sint16 nx, ny;	2051	sint16 nx, ny;
2092	object *tmp;	2052	object *tmp;
2093	mapstruct *mp;	2053	maptile *mp;
		2054
2094	MoveType blocked, move_type;	2055	MoveType blocked, move_type;
2095		2056
2096	if (exclude && exclude->head) {	2057	if (exclude && exclude->head)
		2058	{
2097	exclude = exclude->head;	2059	exclude = exclude->head;
2098	move_type = exclude->move_type;	2060	move_type = exclude->move_type;
2099	} else {	2061	}
		2062	else
		2063	{
2100	/* If we don't have anything, presume it can use all movement types. */	2064	/* If we don't have anything, presume it can use all movement types. */
2101	move_type=MOVE_ALL;	2065	move_type = MOVE_ALL;
		2066	}
		2067
		2068	for (i = 1; i < max; i++)
2102	}	2069	{
2103
2104	for(i=1;i<max;i++) {
2105	mp = m;	2070	mp = m;
2106	nx = x + freearr_x[i];	2071	nx = x + freearr_x[i];
2107	ny = y + freearr_y[i];	2072	ny = y + freearr_y[i];
2108		2073
2109	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2074	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2075
2110	if (mflags & P_OUT_OF_MAP) {	2076	if (mflags & P_OUT_OF_MAP)
		2077	max = maxfree[i];
		2078	else
		2079	{
		2080	mapspace &ms = mp->at (nx, ny);
		2081
		2082	blocked = ms.move_block;
		2083
		2084	if ((move_type & blocked) == move_type)
2111	max = maxfree[i];	2085	max = maxfree[i];
2112	} else {
2113	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2114
2115	if ((move_type & blocked) == move_type) {
2116	max=maxfree[i];
2117	} else if (mflags & P_IS_ALIVE) {	2086	else if (mflags & P_IS_ALIVE)
2118	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2087	{
		2088	for (tmp = ms.bot; tmp; tmp = tmp->above)
2119	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2089	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2120	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2090	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2121	break;	2091	break;
2122	}	2092
2123	}
2124	if(tmp) {	2093	if (tmp)
2125	return freedir[i];	2094	return freedir[i];
2126	}
2127	}	2095	}
2128	}	2096	}
2129	}	2097	}
		2098
2130	return 0;	2099	return 0;
2131	}	2100	}
2132		2101
2133	/*	2102	/*
2134	* distance(object 1, object 2) will return the square of the	2103	* distance(object 1, object 2) will return the square of the
2135	* distance between the two given objects.	2104	* distance between the two given objects.
2136	*/	2105	*/
2137		2106	int
2138	int distance(const object *ob1, const object *ob2) {	2107	distance (const object *ob1, const object *ob2)
2139	int i;	2108	{
2140	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2109	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2141	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2142	return i;
2143	}	2110	}
2144		2111
2145	/*	2112	/*
2146	* find_dir_2(delta-x,delta-y) will return a direction in which	2113	* find_dir_2(delta-x,delta-y) will return a direction in which
2147	* an object which has subtracted the x and y coordinates of another	2114	* an object which has subtracted the x and y coordinates of another
2148	* object, needs to travel toward it.	2115	* object, needs to travel toward it.
2149	*/	2116	*/
2150		2117	int
2151	int find_dir_2(int x, int y) {	2118	find_dir_2 (int x, int y)
		2119	{
2152	int q;	2120	int q;
2153		2121
2154	if(y)	2122	if (y)
2155	q=x*100/y;	2123	q = x * 100 / y;
2156	else if (x)	2124	else if (x)
2157	q= -300*x;	2125	q = -300 * x;
2158	else	2126	else
2159	return 0;	2127	return 0;
2160		2128
2161	if(y>0) {	2129	if (y > 0)
		2130	{
2162	if(q < -242)	2131	if (q < -242)
2163	return 3 ;	2132	return 3;
2164	if (q < -41)	2133	if (q < -41)
2165	return 2 ;	2134	return 2;
2166	if (q < 41)	2135	if (q < 41)
2167	return 1 ;	2136	return 1;
2168	if (q < 242)	2137	if (q < 242)
2169	return 8 ;	2138	return 8;
2170	return 7 ;	2139	return 7;
2171	}	2140	}
2172		2141
2173	if (q < -242)	2142	if (q < -242)
2174	return 7 ;	2143	return 7;
2175	if (q < -41)	2144	if (q < -41)
2176	return 6 ;	2145	return 6;
2177	if (q < 41)	2146	if (q < 41)
2178	return 5 ;	2147	return 5;
2179	if (q < 242)	2148	if (q < 242)
2180	return 4 ;	2149	return 4;
2181		2150
2182	return 3 ;	2151	return 3;
2183	}
2184
2185	/*
2186	* absdir(int): Returns a number between 1 and 8, which represent
2187	* the "absolute" direction of a number (it actually takes care of
2188	* "overflow" in previous calculations of a direction).
2189	*/
2190
2191	int absdir(int d) {
2192	while(d<1) d+=8;
2193	while(d>8) d-=8;
2194	return d;
2195	}	2152	}
2196		2153
2197	/*	2154	/*
2198	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2155	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2199	* between two directions (which are expected to be absolute (see absdir())	2156	* between two directions (which are expected to be absolute (see absdir())
2200	*/	2157	*/
2201		2158	int
2202	int dirdiff(int dir1, int dir2) {	2159	dirdiff (int dir1, int dir2)
		2160	{
2203	int d;	2161	int d;
		2162
2204	d = abs(dir1 - dir2);	2163	d = abs (dir1 - dir2);
2205	if(d>4)	2164	if (d > 4)
2206	d = 8 - d;	2165	d = 8 - d;
		2166
2207	return d;	2167	return d;
2208	}	2168	}
2209		2169
2210	/* peterm:	2170	/* peterm:
2211	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2171	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2214	* This basically means that if direction is 15, then it could either go	2174	* This basically means that if direction is 15, then it could either go
2215	* direction 4, 14, or 16 to get back to where we are.	2175	* direction 4, 14, or 16 to get back to where we are.
2216	* Moved from spell_util.c to object.c with the other related direction	2176	* Moved from spell_util.c to object.c with the other related direction
2217	* functions.	2177	* functions.
2218	*/	2178	*/
2219
2220	int reduction_dir[SIZEOFFREE][3] = {	2179	int reduction_dir[SIZEOFFREE][3] = {
2221	{0,0,0}, /* 0 */	2180	{0, 0, 0}, /* 0 */
2222	{0,0,0}, /* 1 */	2181	{0, 0, 0}, /* 1 */
2223	{0,0,0}, /* 2 */	2182	{0, 0, 0}, /* 2 */
2224	{0,0,0}, /* 3 */	2183	{0, 0, 0}, /* 3 */
2225	{0,0,0}, /* 4 */	2184	{0, 0, 0}, /* 4 */
2226	{0,0,0}, /* 5 */	2185	{0, 0, 0}, /* 5 */
2227	{0,0,0}, /* 6 */	2186	{0, 0, 0}, /* 6 */
2228	{0,0,0}, /* 7 */	2187	{0, 0, 0}, /* 7 */
2229	{0,0,0}, /* 8 */	2188	{0, 0, 0}, /* 8 */
2230	{8,1,2}, /* 9 */	2189	{8, 1, 2}, /* 9 */
2231	{1,2,-1}, /* 10 */	2190	{1, 2, -1}, /* 10 */
2232	{2,10,12}, /* 11 */	2191	{2, 10, 12}, /* 11 */
2233	{2,3,-1}, /* 12 */	2192	{2, 3, -1}, /* 12 */
2234	{2,3,4}, /* 13 */	2193	{2, 3, 4}, /* 13 */
2235	{3,4,-1}, /* 14 */	2194	{3, 4, -1}, /* 14 */
2236	{4,14,16}, /* 15 */	2195	{4, 14, 16}, /* 15 */
2237	{5,4,-1}, /* 16 */	2196	{5, 4, -1}, /* 16 */
2238	{4,5,6}, /* 17 */	2197	{4, 5, 6}, /* 17 */
2239	{6,5,-1}, /* 18 */	2198	{6, 5, -1}, /* 18 */
2240	{6,20,18}, /* 19 */	2199	{6, 20, 18}, /* 19 */
2241	{7,6,-1}, /* 20 */	2200	{7, 6, -1}, /* 20 */
2242	{6,7,8}, /* 21 */	2201	{6, 7, 8}, /* 21 */
2243	{7,8,-1}, /* 22 */	2202	{7, 8, -1}, /* 22 */
2244	{8,22,24}, /* 23 */	2203	{8, 22, 24}, /* 23 */
2245	{8,1,-1}, /* 24 */	2204	{8, 1, -1}, /* 24 */
2246	{24,9,10}, /* 25 */	2205	{24, 9, 10}, /* 25 */
2247	{9,10,-1}, /* 26 */	2206	{9, 10, -1}, /* 26 */
2248	{10,11,-1}, /* 27 */	2207	{10, 11, -1}, /* 27 */
2249	{27,11,29}, /* 28 */	2208	{27, 11, 29}, /* 28 */
2250	{11,12,-1}, /* 29 */	2209	{11, 12, -1}, /* 29 */
2251	{12,13,-1}, /* 30 */	2210	{12, 13, -1}, /* 30 */
2252	{12,13,14}, /* 31 */	2211	{12, 13, 14}, /* 31 */
2253	{13,14,-1}, /* 32 */	2212	{13, 14, -1}, /* 32 */
2254	{14,15,-1}, /* 33 */	2213	{14, 15, -1}, /* 33 */
2255	{33,15,35}, /* 34 */	2214	{33, 15, 35}, /* 34 */
2256	{16,15,-1}, /* 35 */	2215	{16, 15, -1}, /* 35 */
2257	{17,16,-1}, /* 36 */	2216	{17, 16, -1}, /* 36 */
2258	{18,17,16}, /* 37 */	2217	{18, 17, 16}, /* 37 */
2259	{18,17,-1}, /* 38 */	2218	{18, 17, -1}, /* 38 */
2260	{18,19,-1}, /* 39 */	2219	{18, 19, -1}, /* 39 */
2261	{41,19,39}, /* 40 */	2220	{41, 19, 39}, /* 40 */
2262	{19,20,-1}, /* 41 */	2221	{19, 20, -1}, /* 41 */
2263	{20,21,-1}, /* 42 */	2222	{20, 21, -1}, /* 42 */
2264	{20,21,22}, /* 43 */	2223	{20, 21, 22}, /* 43 */
2265	{21,22,-1}, /* 44 */	2224	{21, 22, -1}, /* 44 */
2266	{23,22,-1}, /* 45 */	2225	{23, 22, -1}, /* 45 */
2267	{45,47,23}, /* 46 */	2226	{45, 47, 23}, /* 46 */
2268	{23,24,-1}, /* 47 */	2227	{23, 24, -1}, /* 47 */
2269	{24,9,-1}}; /* 48 */	2228	{24, 9, -1}
		2229	}; /* 48 */
2270		2230
2271	/* Recursive routine to step back and see if we can	2231	/* Recursive routine to step back and see if we can
2272	* find a path to that monster that we found. If not,	2232	* find a path to that monster that we found. If not,
2273	* we don't bother going toward it. Returns 1 if we	2233	* we don't bother going toward it. Returns 1 if we
2274	* can see a direct way to get it	2234	* can see a direct way to get it
2275	* Modified to be map tile aware -.MSW	2235	* Modified to be map tile aware -.MSW
2276	*/	2236	*/
2277		2237	int
2278
2279	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2238	can_see_monsterP (maptile *m, int x, int y, int dir)
		2239	{
2280	sint16 dx, dy;	2240	sint16 dx, dy;
2281	int mflags;	2241	int mflags;
2282		2242
		2243	if (dir < 0)
2283	if(dir<0) return 0; /* exit condition: invalid direction */	2244	return 0; /* exit condition: invalid direction */
2284		2245
2285	dx = x + freearr_x[dir];	2246	dx = x + freearr_x[dir];
2286	dy = y + freearr_y[dir];	2247	dy = y + freearr_y[dir];
2287		2248
2288	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2249	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2289		2250
2290	/* This functional arguably was incorrect before - it was	2251	/* This functional arguably was incorrect before - it was
2291	* checking for P_WALL - that was basically seeing if	2252	* checking for P_WALL - that was basically seeing if
2292	* we could move to the monster - this is being more	2253	* we could move to the monster - this is being more
2293	* literal on if we can see it. To know if we can actually	2254	* literal on if we can see it. To know if we can actually
2294	* move to the monster, we'd need the monster passed in or	2255	* move to the monster, we'd need the monster passed in or
2295	* at least its move type.	2256	* at least its move type.
2296	*/	2257	*/
2297	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2258	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2259	return 0;
2298		2260
2299	/* yes, can see. */	2261	/* yes, can see. */
2300	if(dir < 9) return 1;	2262	if (dir < 9)
		2263	return 1;
		2264
2301	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2265	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2302	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2266	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2303	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2267	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2304	}	2268	}
2305		2269
2306
2307
2308	/*	2270	/*
2309	* can_pick(picker, item): finds out if an object is possible to be	2271	* can_pick(picker, item): finds out if an object is possible to be
2310	* picked up by the picker. Returnes 1 if it can be	2272	* picked up by the picker. Returnes 1 if it can be
2311	* picked up, otherwise 0.	2273	* picked up, otherwise 0.
2312	*	2274	*
…		…
2314	* core dumps if they do.	2276	* core dumps if they do.
2315	*	2277	*
2316	* Add a check so we can't pick up invisible objects (0.93.8)	2278	* Add a check so we can't pick up invisible objects (0.93.8)
2317	*/	2279	*/
2318		2280
		2281	int
2319	int can_pick(const object *who, const object *item) {	2282	can_pick (const object *who, const object *item)
		2283	{
2320	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2284	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2321	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2285	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2322	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2286	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2323	(who->type==PLAYER||item->weight<who->weight/3));
2324	}	2287	}
2325
2326		2288
2327	/*	2289	/*
2328	* create clone from object to another	2290	* create clone from object to another
2329	*/	2291	*/
		2292	object *
2330	object *object_create_clone (object *asrc) {	2293	object_create_clone (object *asrc)
		2294	{
2331	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2295	object *dst = 0, *tmp, *src, *part, *prev, *item;
2332		2296
2333	if(!asrc) return NULL;	2297	if (!asrc)
		2298	return 0;
		2299
2334	src = asrc;	2300	src = asrc;
2335	if(src->head)	2301	if (src->head)
2336	src = src->head;	2302	src = src->head;
2337		2303
2338	prev = NULL;	2304	prev = 0;
2339	for(part = src; part; part = part->more) {	2305	for (part = src; part; part = part->more)
2340	tmp = get_object();	2306	{
2341	copy_object(part,tmp);	2307	tmp = part->clone ();
2342	tmp->x -= src->x;	2308	tmp->x -= src->x;
2343	tmp->y -= src->y;	2309	tmp->y -= src->y;
		2310
2344	if(!part->head) {	2311	if (!part->head)
		2312	{
2345	dst = tmp;	2313	dst = tmp;
2346	tmp->head = NULL;
2347	} else {
2348	tmp->head = dst;	2314	tmp->head = 0;
2349	}	2315	}
		2316	else
		2317	tmp->head = dst;
		2318
2350	tmp->more = NULL;	2319	tmp->more = 0;
		2320
2351	if(prev)	2321	if (prev)
2352	prev->more = tmp;	2322	prev->more = tmp;
		2323
2353	prev = tmp;	2324	prev = tmp;
2354	}	2325	}
2355	/*** copy inventory ***/	2326
2356	for(item = src->inv; item; item = item->below) {	2327	for (item = src->inv; item; item = item->below)
2357	(void) insert_ob_in_ob(object_create_clone(item),dst);	2328	insert_ob_in_ob (object_create_clone (item), dst);
2358	}
2359		2329
2360	return dst;	2330	return dst;
2361	}
2362
2363	/* return true if the object was destroyed, 0 otherwise */
2364	int was_destroyed (const object *op, tag_t old_tag)
2365	{
2366	/* checking for FLAG_FREED isn't necessary, but makes this function more
2367	* robust */
2368	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2369	}	2331	}
2370		2332
2371	/* GROS - Creates an object using a string representing its content. */	2333	/* GROS - Creates an object using a string representing its content. */
2372	/* Basically, we save the content of the string to a temp file, then call */	2334	/* Basically, we save the content of the string to a temp file, then call */
2373	/* load_object on it. I admit it is a highly inefficient way to make things, */	2335	/* load_object on it. I admit it is a highly inefficient way to make things, */
2374	/* but it was simple to make and allows reusing the load_object function. */	2336	/* but it was simple to make and allows reusing the load_object function. */
2375	/* Remember not to use load_object_str in a time-critical situation. */	2337	/* Remember not to use load_object_str in a time-critical situation. */
2376	/* Also remember that multiparts objects are not supported for now. */	2338	/* Also remember that multiparts objects are not supported for now. */
2377		2339	object *
2378	object* load_object_str(const char *obstr)	2340	load_object_str (const char *obstr)
2379	{	2341	{
2380	object *op;	2342	object *op;
2381	char filename[MAX_BUF];	2343	char filename[MAX_BUF];
		2344
2382	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2345	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2383		2346
2384	FILE *tempfile=fopen(filename,"w");	2347	FILE *tempfile = fopen (filename, "w");
		2348
2385	if (tempfile == NULL)	2349	if (tempfile == NULL)
2386	{	2350	{
2387	LOG(llevError,"Error - Unable to access load object temp file\n");	2351	LOG (llevError, "Error - Unable to access load object temp file\n");
2388	return NULL;	2352	return NULL;
2389	};	2353	}
		2354
2390	fprintf(tempfile,obstr);	2355	fprintf (tempfile, obstr);
2391	fclose(tempfile);	2356	fclose (tempfile);
2392		2357
2393	op=get_object();	2358	op = object::create ();
2394		2359
2395	object_thawer thawer (filename);	2360	object_thawer thawer (filename);
2396		2361
2397	if (thawer)	2362	if (thawer)
2398	load_object(thawer,op,0);	2363	load_object (thawer, op, 0);
2399		2364
2400	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2365	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2401	CLEAR_FLAG(op,FLAG_REMOVED);	2366	CLEAR_FLAG (op, FLAG_REMOVED);
2402		2367
2403	return op;	2368	return op;
2404	}	2369	}
2405		2370
2406	/* This returns the first object in who's inventory that	2371	/* This returns the first object in who's inventory that
2407	* has the same type and subtype match.	2372	* has the same type and subtype match.
2408	* returns NULL if no match.	2373	* returns NULL if no match.
2409	*/	2374	*/
		2375	object *
2410	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2376	find_obj_by_type_subtype (const object *who, int type, int subtype)
2411	{	2377	{
2412	object *tmp;
2413
2414	for (tmp=who->inv; tmp; tmp=tmp->below)	2378	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2415	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2379	if (tmp->type == type && tmp->subtype == subtype)
		2380	return tmp;
2416		2381
2417	return NULL;	2382	return 0;
2418	}	2383	}
2419		2384
2420	/* If ob has a field named key, return the link from the list,	2385	/* If ob has a field named key, return the link from the list,
2421	* otherwise return NULL.	2386	* otherwise return NULL.
2422	*	2387	*
2423	* key must be a passed in shared string - otherwise, this won't	2388	* key must be a passed in shared string - otherwise, this won't
2424	* do the desired thing.	2389	* do the desired thing.
2425	*/	2390	*/
		2391	key_value *
2426	key_value * get_ob_key_link(const object * ob, const char * key) {	2392	get_ob_key_link (const object *ob, const char *key)
2427	key_value * link;	2393	{
2428
2429	for (link = ob->key_values; link != NULL; link = link->next) {	2394	for (key_value *link = ob->key_values; link; link = link->next)
2430	if (link->key == key) {	2395	if (link->key == key)
2431	return link;	2396	return link;
2432	}	2397
2433	}	2398	return 0;
2434		2399	}
2435	return NULL;
2436	}
2437		2400
2438	/*	2401	/*
2439	* Returns the value of op has an extra_field for key, or NULL.	2402	* Returns the value of op has an extra_field for key, or NULL.
2440	*	2403	*
2441	* The argument doesn't need to be a shared string.	2404	* The argument doesn't need to be a shared string.
2442	*	2405	*
2443	* The returned string is shared.	2406	* The returned string is shared.
2444	*/	2407	*/
		2408	const char *
2445	const char * get_ob_key_value(const object * op, const char * const key) {	2409	get_ob_key_value (const object *op, const char *const key)
		2410	{
2446	key_value * link;	2411	key_value *link;
2447	const char * canonical_key;	2412	shstr_cmp canonical_key (key);
		2413
		2414	if (!canonical_key)
2448		2415	{
2449	canonical_key = shstr::find (key);
2450
2451	if (canonical_key == NULL) {
2452	/* 1. There being a field named key on any object	2416	/* 1. There being a field named key on any object
2453	* implies there'd be a shared string to find.	2417	* implies there'd be a shared string to find.
2454	* 2. Since there isn't, no object has this field.	2418	* 2. Since there isn't, no object has this field.
2455	* 3. Therefore, *this* object doesn't have this field.	2419	* 3. Therefore, *this* object doesn't have this field.
2456	*/	2420	*/
2457	return NULL;	2421	return 0;
2458	}	2422	}
2459		2423
2460	/* This is copied from get_ob_key_link() above -	2424	/* This is copied from get_ob_key_link() above -
2461	* only 4 lines, and saves the function call overhead.	2425	* only 4 lines, and saves the function call overhead.
2462	*/	2426	*/
2463	for (link = op->key_values; link != NULL; link = link->next) {	2427	for (link = op->key_values; link; link = link->next)
2464	if (link->key == canonical_key) {	2428	if (link->key == canonical_key)
2465	return link->value;	2429	return link->value;
2466	}	2430
2467	}	2431	return 0;
2468	return NULL;
2469	}	2432	}
2470		2433
2471		2434
2472	/*	2435	/*
2473	* Updates the canonical_key in op to value.	2436	* Updates the canonical_key in op to value.
…		…
2477	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2440	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2478	* keys.	2441	* keys.
2479	*	2442	*
2480	* Returns TRUE on success.	2443	* Returns TRUE on success.
2481	*/	2444	*/
		2445	int
2482	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2446	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2447	{
2483	key_value * field = NULL, *last=NULL;	2448	key_value *field = NULL, *last = NULL;
2484		2449
2485	for (field=op->key_values; field != NULL; field=field->next) {	2450	for (field = op->key_values; field != NULL; field = field->next)
		2451	{
2486	if (field->key != canonical_key) {	2452	if (field->key != canonical_key)
		2453	{
2487	last = field;	2454	last = field;
2488	continue;	2455	continue;
2489	}	2456	}
2490		2457
2491	if (value)	2458	if (value)
2492	field->value = value;	2459	field->value = value;
2493	else {	2460	else
		2461	{
2494	/* Basically, if the archetype has this key set,	2462	/* Basically, if the archetype has this key set,
2495	* we need to store the null value so when we save	2463	* we need to store the null value so when we save
2496	* it, we save the empty value so that when we load,	2464	* it, we save the empty value so that when we load,
2497	* we get this value back again.	2465	* we get this value back again.
2498	*/	2466	*/
2499	if (get_ob_key_link (&op->arch->clone, canonical_key))	2467	if (get_ob_key_link (&op->arch->clone, canonical_key))
2500	field->value = 0;	2468	field->value = 0;
		2469	else
		2470	{
		2471	if (last)
		2472	last->next = field->next;
2501	else	2473	else
2502	{
2503	if (last) last->next = field->next;
2504	else op->key_values = field->next;	2474	op->key_values = field->next;
2505		2475
2506	delete field;	2476	delete field;
2507	}	2477	}
2508	}	2478	}
2509	return TRUE;	2479	return TRUE;
2510	}	2480	}
2511	/* IF we get here, key doesn't exist */	2481	/* IF we get here, key doesn't exist */
2512		2482
2513	/* No field, we'll have to add it. */	2483	/* No field, we'll have to add it. */
2514		2484
2515	if (!add_key) {	2485	if (!add_key)
2516	return FALSE;	2486	return FALSE;
2517	}	2487
2518	/* There isn't any good reason to store a null	2488	/* There isn't any good reason to store a null
2519	* value in the key/value list. If the archetype has	2489	* value in the key/value list. If the archetype has
2520	* this key, then we should also have it, so shouldn't	2490	* this key, then we should also have it, so shouldn't
2521	* be here. If user wants to store empty strings,	2491	* be here. If user wants to store empty strings,
2522	* should pass in ""	2492	* should pass in ""
2523	*/	2493	*/
2524	if (value == NULL) return TRUE;	2494	if (value == NULL)
2525
2526	field = new key_value;
2527
2528	field->key = canonical_key;
2529	field->value = value;
2530	/* Usual prepend-addition. */
2531	field->next = op->key_values;
2532	op->key_values = field;
2533
2534	return TRUE;	2495	return TRUE;
		2496
		2497	field = new key_value;
		2498
		2499	field->key = canonical_key;
		2500	field->value = value;
		2501	/* Usual prepend-addition. */
		2502	field->next = op->key_values;
		2503	op->key_values = field;
		2504
		2505	return TRUE;
2535	}	2506	}
2536		2507
2537	/*	2508	/*
2538	* Updates the key in op to value.	2509	* Updates the key in op to value.
2539	*	2510	*
…		…
2541	* and not add new ones.	2512	* and not add new ones.
2542	* In general, should be little reason FALSE is ever passed in for add_key	2513	* In general, should be little reason FALSE is ever passed in for add_key
2543	*	2514	*
2544	* Returns TRUE on success.	2515	* Returns TRUE on success.
2545	*/	2516	*/
		2517	int
2546	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2518	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2547	{	2519	{
2548	shstr key_ (key);	2520	shstr key_ (key);
		2521
2549	return set_ob_key_value_s (op, key_, value, add_key);	2522	return set_ob_key_value_s (op, key_, value, add_key);
2550	}	2523	}
		2524
		2525	object::depth_iterator::depth_iterator (object *container)
		2526	: iterator_base (container)
		2527	{
		2528	while (item->inv)
		2529	item = item->inv;
		2530	}
		2531
		2532	void
		2533	object::depth_iterator::next ()
		2534	{
		2535	if (item->below)
		2536	{
		2537	item = item->below;
		2538
		2539	while (item->inv)
		2540	item = item->inv;
		2541	}
		2542	else
		2543	item = item->env;
		2544	}
		2545
		2546
		2547	const char *
		2548	object::flag_desc (char *desc, int len) const
		2549	{
		2550	char *p = desc;
		2551	bool first = true;
		2552
		2553	*p = 0;
		2554
		2555	for (int i = 0; i < NUM_FLAGS; i++)
		2556	{
		2557	if (len <= 10) // magic constant!
		2558	{
		2559	snprintf (p, len, ",...");
		2560	break;
		2561	}
		2562
		2563	if (flag [i])
		2564	{
		2565	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2566	len -= cnt;
		2567	p += cnt;
		2568	first = false;
		2569	}
		2570	}
		2571
		2572	return desc;
		2573	}
		2574
		2575	// return a suitable string describing an object in enough detail to find it
		2576	const char *
		2577	object::debug_desc (char *info) const
		2578	{
		2579	char flagdesc[512];
		2580	char info2[256 * 4];
		2581	char *p = info;
		2582
		2583	p += snprintf (p, 512, "{cnt:%d,uuid:<1.%" PRIx64 ">,name:\"%s\"%s%s,flags:[%s],type:%d}",
		2584	count, uuid.seq,
		2585	&name,
		2586	title ? "\",title:\"" : "",
		2587	title ? (const char *)title : "",
		2588	flag_desc (flagdesc, 512), type);
		2589
		2590	if (env)
		2591	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2592
		2593	if (map)
		2594	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2595
		2596	return info;
		2597	}
		2598
		2599	const char *
		2600	object::debug_desc () const
		2601	{
		2602	static char info[256 * 4];
		2603	return debug_desc (info);
		2604	}
		2605
		2606	const char *
		2607	object::debug_desc2 () const
		2608	{
		2609	static char info[256 * 4];
		2610	return debug_desc (info);
		2611	}
		2612
		2613	struct region *
		2614	object::region () const
		2615	{
		2616	return map ? map->region (x, y)
		2617	: region::default_region ();
		2618	}
		2619

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