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Comparing deliantra/server/common/object.C (file contents):
Revision 1.17 by root, Mon Sep 4 17:27:13 2006 UTC vs.
Revision 1.107 by pippijn, Sat Jan 6 14:42:29 2007 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.17 2006/09/04 17:27:13 root Exp $";
4	*/
5
6	/*	1	/*
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
…		…
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 */
45	object *active_objects; /* List of active objects that need to be processed */	42	object *active_objects; /* List of active objects that need to be processed */
46		43
47	short freearr_x[SIZEOFFREE]=	44	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};	45	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	short freearr_y[SIZEOFFREE]=	46	};
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,	47	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};	48	-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]=	49	};
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,	50	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};	51	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	};
56	int freedir[SIZEOFFREE]= {	53	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,	54	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};	55	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	};
59		57
		58	static void
		59	write_uuid (void)
		60	{
		61	char filename1[MAX_BUF], filename2[MAX_BUF];
		62
		63	sprintf (filename1, "%s/uuid", settings.localdir);
		64	sprintf (filename2, "%s/uuid~", settings.localdir);
		65
		66	FILE *fp;
		67
		68	if (!(fp = fopen (filename2, "w")))
		69	{
		70	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		71	return;
		72	}
		73
		74	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		75	fclose (fp);
		76	rename (filename2, filename1);
		77	}
		78
		79	static void
		80	read_uuid (void)
		81	{
		82	char filename[MAX_BUF];
		83
		84	sprintf (filename, "%s/uuid", settings.localdir);
		85
		86	FILE *fp;
		87
		88	if (!(fp = fopen (filename, "r")))
		89	{
		90	if (errno == ENOENT)
		91	{
		92	LOG (llevInfo, "RESET uid to 1\n");
		93	uuid.seq = 0;
		94	write_uuid ();
		95	return;
		96	}
		97
		98	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		99	_exit (1);
		100	}
		101
		102	int version;
		103	unsigned long long uid;
		104	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		105	{
		106	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		107	_exit (1);
		108	}
		109
		110	uuid.seq = uid;
		111	write_uuid ();
		112	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		113	fclose (fp);
		114	}
		115
		116	UUID
		117	gen_uuid ()
		118	{
		119	UUID uid;
		120
		121	uid.seq = ++uuid.seq;
		122
		123	if (!(uuid.seq & (UUID_SKIP - 1)))
		124	write_uuid ();
		125
		126	return uid;
		127	}
		128
		129	void
		130	init_uuid ()
		131	{
		132	read_uuid ();
		133	}
60		134
61	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	135	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		136	static int
62	static int compare_ob_value_lists_one(const object * wants, const object * has) {	137	compare_ob_value_lists_one (const object *wants, const object *has)
		138	{
63	key_value * wants_field;	139	key_value *wants_field;
64		140
65	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	141	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
66	* objects with lists are rare, and lists stay short. If not, use a	142	* objects with lists are rare, and lists stay short. If not, use a
67	* different structure or at least keep the lists sorted...	143	* different structure or at least keep the lists sorted...
68	*/	144	*/
69		145
70	/* For each field in wants, */	146	/* For each field in wants, */
71	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	147	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
		148	{
72	key_value * has_field;	149	key_value *has_field;
73		150
74	/* Look for a field in has with the same key. */	151	/* Look for a field in has with the same key. */
75	has_field = get_ob_key_link(has, wants_field->key);	152	has_field = get_ob_key_link (has, wants_field->key);
		153
		154	if (has_field == NULL)
76		155	{
77	if (has_field == NULL) {
78	/* No field with that name. */	156	/* No field with that name. */
79	return FALSE;	157	return FALSE;
80	}
81		158	}
		159
82	/* Found the matching field. */	160	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {	161	if (has_field->value != wants_field->value)
		162	{
84	/* Values don't match, so this half of the comparison is false. */	163	/* Values don't match, so this half of the comparison is false. */
85	return FALSE;	164	return FALSE;
86	}	165	}
87		166
88	/* If we get here, we found a match. Now for the next field in wants. */	167	/* If we get here, we found a match. Now for the next field in wants. */
89	}
90		168	}
		169
91	/* If we get here, every field in wants has a matching field in has. */	170	/* If we get here, every field in wants has a matching field in has. */
92	return TRUE;	171	return TRUE;
93	}	172	}
94		173
95	/* Returns TRUE if ob1 has the same key_values as ob2. */	174	/* Returns TRUE if ob1 has the same key_values as ob2. */
		175	static int
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	176	compare_ob_value_lists (const object *ob1, const object *ob2)
		177	{
97	/* However, there may be fields in has which aren't partnered in wants,	178	/* However, there may be fields in has which aren't partnered in wants,
98	* so we need to run the comparison *twice*. :(	179	* so we need to run the comparison *twice*. :(
99	*/	180	*/
100	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	181	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
101	}	182	}
102		183
103	/* Function examines the 2 objects given to it, and returns true if	184	/* Function examines the 2 objects given to it, and returns true if
104	* they can be merged together.	185	* they can be merged together.
105	*	186	*
106	* Note that this function appears a lot longer than the macro it	187	* Note that this function appears a lot longer than the macro it
107	* replaces - this is mostly for clarity - a decent compiler should hopefully	188	* replaces - this is mostly for clarity - a decent compiler should hopefully
108	* reduce this to the same efficiency.	189	* reduce this to the same efficiency.
109	*	190	*
110	* Check nrof variable *before* calling CAN_MERGE()	191	* Check nrof variable *before* calling can_merge()
111	*	192	*
112	* Improvements made with merge: Better checking on potion, and also	193	* Improvements made with merge: Better checking on potion, and also
113	* check weight	194	* check weight
114	*/	195	*/
115
116	bool
117	object::can_merge (object *ob1, object *ob2)	196	bool object::can_merge_slow (object *ob1, object *ob2)
118	{	197	{
119	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
120	if ((ob1 == ob2) || (ob1->type != ob2->type))	199	if (ob1 == ob2
		200	|| ob1->type != ob2->type
		201	|| ob1->speed != ob2->speed
		202	|| ob1->value != ob2->value
		203	|| ob1->name != ob2->name)
121	return 0;	204	return 0;
122		205
123	if (ob1->speed != ob2->speed)	206	//TODO: this ain't working well, use nicer and correct overflow check
124	return 0;
125
126	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
127	* value could not be stored in a sint32 (which unfortunately sometimes is	208	* value could not be stored in a sint32 (which unfortunately sometimes is
128	* used to store nrof).	209	* used to store nrof).
129	*/	210	*/
130	if (ob1->nrof + ob2->nrof >= 1UL << 31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
140	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
141		222
142	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
143	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
144		225
145		226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
146	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
147	* being locked in inventory should prevent merging.
148	* 0x4 in flags3 is CLIENT_SENT
149	*/
150	if ((ob1->arch != ob2->arch) ||
151	(ob1->flags[0] != ob2->flags[0]) ||
152	(ob1->flags[1] != ob2->flags[1]) ||
153	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
154	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
155	(ob1->name != ob2->name) ||	228	|| ob1->name != ob2->name
156	(ob1->title != ob2->title) ||	229	|| ob1->title != ob2->title
157	(ob1->msg != ob2->msg) ||	230	|| ob1->msg != ob2->msg
158	(ob1->weight != ob2->weight) ||	231	|| ob1->weight != ob2->weight
159	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
160	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
161	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
162	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
163	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
164	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
165	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
166	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
167	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
168	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
169	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
170	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
171	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
172	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
173	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
174	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
175	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
176	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
177	(ob1->move_slow_penalty != ob2->move_slow_penalty))	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
178	return 0;	251	return 0;
179		252
180	/* This is really a spellbook check - really, we should	253	/* This is really a spellbook check - really, we should
181	* check all objects in the inventory.	254	* check all objects in the inventory.
182	*/	255	*/
183	if (ob1->inv || ob2->inv)	256	if (ob1->inv || ob2->inv)
184	{	257	{
185	/* if one object has inventory but the other doesn't, not equiv */	258	/* if one object has inventory but the other doesn't, not equiv */
186	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
187	return 0;	260	return 0;
188		261
189	/* Now check to see if the two inventory objects could merge */	262	/* Now check to see if the two inventory objects could merge */
190	if (!CAN_MERGE (ob1->inv, ob2->inv))	263	if (!object::can_merge (ob1->inv, ob2->inv))
191	return 0;	264	return 0;
192		265
193	/* inventory ok - still need to check rest of this object to see	266	/* inventory ok - still need to check rest of this object to see
194	* if it is valid.	267	* if it is valid.
195	*/	268	*/
196	}	269	}
…		…
204		277
205	/* Note sure why the following is the case - either the object has to	278	/* Note sure why the following is the case - either the object has to
206	* be animated or have a very low speed. Is this an attempted monster	279	* be animated or have a very low speed. Is this an attempted monster
207	* check?	280	* check?
208	*/	281	*/
209	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
210	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
211	return 0;	283	return 0;
212		284
213	switch (ob1->type)	285	switch (ob1->type)
214	{	286	{
215	case SCROLL:	287	case SCROLL:
216	if (ob1->level != ob2->level)	288	if (ob1->level != ob2->level)
217	return 0;	289	return 0;
218	break;	290	break;
219	}	291	}
220		292
221	if (ob1->key_values != NULL || ob2->key_values != NULL)	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
222	{	294	{
223	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
226	return 0;	298	return 0;
227	else if (!compare_ob_value_lists (ob1, ob2))	299	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	300	return 0;
229	}	301	}
230		302
231	//TODO: generate an event or call into perl for additional checks	303	//TODO: generate an event or call into perl for additional checks
232	if (ob1->self || ob2->self)	304	if (ob1->self || ob2->self)
233	{	305	{
234	ob1->optimise ();	306	ob1->optimise ();
235	ob2->optimise ();	307	ob2->optimise ();
236		308
237	if (ob1->self || ob2->self)	309	if (ob1->self || ob2->self)
238	return 0;	310	return 0;
239	}	311	}
240		312
241	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
242	return 1;	314	return 1;
243	}	315	}
		316
244	/*	317	/*
245	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
246	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
247	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
248	*/	321	*/
249	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
250	signed long sum;	325	long sum;
251	object *inv;	326	object *inv;
		327
252	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
253	if (inv->inv)	330	if (inv->inv)
254	sum_weight(inv);	331	sum_weight (inv);
255	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
256	}	333	}
		334
257	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
258	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
259	if(op->carrying != sum)	338	if (op->carrying != sum)
260	op->carrying = sum;	339	op->carrying = sum;
		340
261	return sum;	341	return sum;
262	}	342	}
263		343
264	/**	344	/**
265	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
266	*/	346	*/
267		347
		348	object *
268	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
269	while (op->env != NULL)	351	while (op->env != NULL)
270	op = op->env;	352	op = op->env;
271	return op;	353	return op;
272	}
273
274	/*
275	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
276	* a better check. We basically keeping traversing up until we can't
277	* or find a player.
278	*/
279
280	object *is_player_inv (object *op) {
281	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
282	if (op->env==op)
283	op->env = NULL;
284	return op;
285	}	354	}
286		355
287	/*	356	/*
288	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
289	* Some error messages.	358	* Some error messages.
290	* The result of the dump is stored in the static global errmsg array.	359	* The result of the dump is stored in the static global errmsg array.
291	*/	360	*/
292		361
293	void dump_object2(object *op) {	362	char *
294	errmsg[0] = 0;
295	return;
296	//TODO//D#d#
297	#if 0
298	char *cp;
299	/* object *tmp;*/
300
301	if(op->arch!=NULL) {
302	strcat(errmsg,"arch ");
303	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
304	strcat(errmsg,"\n");
305	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
306	strcat(errmsg,cp);
307	#if 0
308	/* Don't dump player diffs - they are too long, mostly meaningless, and
309	* will overflow the buffer.
310	* Changed so that we don't dump inventory either. This may
311	* also overflow the buffer.
312	*/
313	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	} else {
320	strcat(errmsg,"Object ");
321	if (op->name==NULL) strcat(errmsg, "(null)");
322	else strcat(errmsg,op->name);
323	strcat(errmsg,"\n");
324	#if 0
325	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
326	strcat(errmsg,cp);
327	for (tmp=op->inv; tmp; tmp=tmp->below)
328	dump_object2(tmp);
329	#endif
330	strcat(errmsg,"end\n");
331	}
332	#endif
333	}
334
335	/*
336	* Dumps an object. Returns output in the static global errmsg array.
337	*/
338
339	void dump_object(object *op) {	363	dump_object (object *op)
340	if(op==NULL) {	364	{
341	strcpy(errmsg,"[NULL pointer]");	365	if (!op)
342	return;	366	return strdup ("[NULLOBJ]");
343	}
344	errmsg[0]='\0';
345	dump_object2(op);
346	}
347		367
348	void dump_all_objects(void) {	368	object_freezer freezer;
349	object *op;	369	save_object (freezer, op, 1);
350	for(op=objects;op!=NULL;op=op->next) {	370	return freezer.as_string ();
351	dump_object(op);
352	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
353	}
354	}	371	}
355		372
356	/*	373	/*
357	* get_nearest_part(multi-object, object 2) returns the part of the	374	* get_nearest_part(multi-object, object 2) returns the part of the
358	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
359	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
360	*/	377	*/
361		378
		379	object *
362	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
363	object *tmp,*closest;	382	object *tmp, *closest;
364	int last_dist,i;	383	int last_dist, i;
		384
365	if(op->more==NULL)	385	if (op->more == NULL)
366	return op;	386	return op;
367	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
368	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
369	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
370	return closest;	390	return closest;
371	}	391	}
372		392
373	/*	393	/*
374	* Returns the object which has the count-variable equal to the argument.	394	* Returns the object which has the count-variable equal to the argument.
375	*/	395	*/
376		396
		397	object *
377	object *find_object(tag_t i) {	398	find_object (tag_t i)
378	object *op;	399	{
379	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
380	if(op->count==i)	401	if (op->count == i)
381	break;	402	return op;
		403
382	return op;	404	return 0;
383	}	405	}
384		406
385	/*	407	/*
386	* 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.
387	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
388	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
389	*/	411	*/
390		412
		413	object *
391	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
392	const char *name = shstr::find (str);	415	{
		416	shstr_cmp str_ (str);
393	object *op;	417	object *op;
		418
394	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
395	if(&op->name == name)	420	if (op->name == str_)
396	break;	421	break;
397		422
398	return op;	423	return op;
399	}	424	}
400		425
		426	void
401	void free_all_object_data ()	427	free_all_object_data ()
402	{	428	{
403	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
404	}
405
406	/*
407	* Returns the object which this object marks as being the owner.
408	* A id-scheme is used to avoid pointing to objects which have been
409	* freed and are now reused. If this is detected, the owner is
410	* set to NULL, and NULL is returned.
411	* Changed 2004-02-12 - if the player is setting at the play again
412	* prompt, he is removed, and we don't want to treat him as an owner of
413	* anything, so check removed flag. I don't expect that this should break
414	* anything - once an object is removed, it is basically dead anyways.
415	*/
416
417	object *get_owner(object *op) {
418	if(op->owner==NULL)
419	return NULL;
420
421	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
422	op->owner->count==op->ownercount)
423	return op->owner;
424
425	op->owner=NULL;
426	op->ownercount=0;
427	return NULL;
428	}
429
430	void clear_owner(object *op)
431	{
432	if (!op) return;
433
434	if (op->owner && op->ownercount == op->owner->count)
435	op->owner->refcount--;
436
437	op->owner = NULL;
438	op->ownercount = 0;
439	}	430	}
440		431
441	/*	432	/*
442	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
443	* skill and experience objects.	434	* skill and experience objects.
444	*/	435	*/
445	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
446	{	438	{
447	if(owner==NULL||op==NULL)	439	if (!owner)
448	return;	440	return;
449		441
450	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
451	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* Add a check for ownercounts in here, as I got into an endless loop
452	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
453	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
454	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
455	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
456	*/	448	*/
457	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
458	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
459		451
460	/* IF the owner still has an owner, we did not resolve to a final owner.
461	* so lets not add to that.
462	*/
463	if (owner->owner) return;
464
465	op->owner=owner;	452	this->owner = owner;
466
467	op->ownercount=owner->count;
468	owner->refcount++;
469
470	}
471
472	/* Set the owner to clone's current owner and set the skill and experience
473	* objects to clone's objects (typically those objects that where the owner's
474	* current skill and experience objects at the time when clone's owner was
475	* set - not the owner's current skill and experience objects).
476	*
477	* Use this function if player created an object (e.g. fire bullet, swarm
478	* spell), and this object creates further objects whose kills should be
479	* accounted for the player's original skill, even if player has changed
480	* skills meanwhile.
481	*/
482	void copy_owner (object *op, object *clone)
483	{
484	object *owner = get_owner (clone);
485	if (owner == NULL) {
486	/* players don't have owners - they own themselves. Update
487	* as appropriate.
488	*/
489	if (clone->type == PLAYER) owner=clone;
490	else return;
491	}
492	set_owner(op, owner);
493
494	}	453	}
495		454
496	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
497	* refcounts and freeing the links.	456	* refcounts and freeing the links.
498	*/	457	*/
		458	static void
499	static void free_key_values(object * op)	459	free_key_values (object *op)
500	{	460	{
501	for (key_value *i = op->key_values; i != 0; )	461	for (key_value *i = op->key_values; i != 0;)
502	{	462	{
503	key_value *next = i->next;	463	key_value *next = i->next;
504	delete i;	464	delete i;
		465
505	i = next;	466	i = next;
506	}	467	}
507		468
508	op->key_values = 0;	469	op->key_values = 0;
509	}	470	}
510		471
511	void object::clear ()
512	{
513	attachable_base::clear ();
514
515	free_key_values (this);
516
517	name = 0;
518	name_pl = 0;
519	title = 0;
520	race = 0;
521	slaying = 0;
522	skill = 0;
523	msg = 0;
524	lore = 0;
525	custom_name = 0;
526	materialname = 0;
527
528	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
529
530	SET_FLAG (this, FLAG_REMOVED);
531	}
532
533	void object::clone (object *destination)
534	{
535	*(object_copy *)destination = *(object_copy *)this;
536	*(object_pod *)destination = *(object_pod *)this;
537
538	if (self || cb)
539	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
540	}
541
542	/*	472	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object (object *op)
548	{
549	op->clear ();
550
551	op->contr = NULL;
552	op->below = NULL;
553	op->above = NULL;
554	op->inv = NULL;
555	op->container=NULL;
556	op->env=NULL;
557	op->more=NULL;
558	op->head=NULL;
559	op->map=NULL;
560	op->refcount=0;
561	op->active_next = NULL;
562	op->active_prev = NULL;
563	/* What is not cleared is next, prev, and count */
564
565	op->expmul = 1.0;
566	op->face = blank_face;
567	op->attacked_by_count = -1;
568
569	if (settings.casting_time)
570	op->casting_time = -1;
571	}
572
573	/*
574	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
575	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
576	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
577	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	476	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
578	* if the first object is freed, the pointers in the new object	477	* if the first object is freed, the pointers in the new object
579	* will point at garbage.	478	* will point at garbage.
580	*/	479	*/
581		480	void
582	void copy_object (object *op2, object *op)	481	object::copy_to (object *dst)
583	{	482	{
584	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
585	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
586		485
587	op2->clone (op);	486	*(object_copy *)dst = *this;
588		487
589	if (is_freed) SET_FLAG (op, FLAG_FREED);	488	if (is_freed)
590	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	489	SET_FLAG (dst, FLAG_FREED);
591		490
		491	if (is_removed)
		492	SET_FLAG (dst, FLAG_REMOVED);
		493
592	if (op2->speed < 0)	494	if (speed < 0)
593	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
594		496
595	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
596	if (op2->key_values != NULL)	498	if (key_values)
597	{	499	{
598	key_value *tail = NULL;	500	key_value *tail = 0;
599	key_value *i;	501	key_value *i;
600		502
601	op->key_values = NULL;	503	dst->key_values = 0;
602		504
603	for (i = op2->key_values; i != NULL; i = i->next)	505	for (i = key_values; i; i = i->next)
604	{	506	{
605	key_value *new_link = new key_value;	507	key_value *new_link = new key_value;
606		508
607	new_link->next = NULL;	509	new_link->next = 0;
608	new_link->key = i->key;	510	new_link->key = i->key;
609	new_link->value = i->value;	511	new_link->value = i->value;
610		512
611	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
612	if (op->key_values == NULL)	514	if (!dst->key_values)
613	{	515	{
614	op->key_values = new_link;	516	dst->key_values = new_link;
615	tail = new_link;	517	tail = new_link;
616	}	518	}
617	else	519	else
618	{	520	{
619	tail->next = new_link;	521	tail->next = new_link;
620	tail = new_link;	522	tail = new_link;
621	}	523	}
622	}	524	}
623	}	525	}
624		526
625	update_ob_speed (op);	527	dst->set_speed (dst->speed);
626	}	528	}
627		529
628	/*	530	object *
629	* get_object() grabs an object from the list of unused objects, makes	531	object::clone ()
630	* sure it is initialised, and returns it.
631	* If there are no free objects, expand_objects() is called to get more.
632	*/
633
634	object *get_object ()
635	{	532	{
636	object *op = new object;	533	object *neu = create ();
637		534	copy_to (neu);
638	op->count = ++ob_count;
639
640	op->active_next = 0;
641	op->active_prev = 0;
642
643	op->next = objects;
644	op->prev = 0;
645
646	if (objects)
647	objects->prev = op;
648
649	objects = op;
650
651	SET_FLAG (op, FLAG_REMOVED);
652
653	op->expmul = 1.0;
654	op->face = blank_face;
655	op->attacked_by_count = -1;
656
657	return op;	535	return neu;
658	}	536	}
659		537
660	/*	538	/*
661	* If an object with the IS_TURNABLE() flag needs to be turned due	539	* If an object with the IS_TURNABLE() flag needs to be turned due
662	* to the closest player being on the other side, this function can	540	* to the closest player being on the other side, this function can
663	* be called to update the face variable, _and_ how it looks on the map.	541	* be called to update the face variable, _and_ how it looks on the map.
664	*/	542	*/
665		543	void
666	void update_turn_face(object *op) {	544	update_turn_face (object *op)
		545	{
667	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	546	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
668	return;	547	return;
		548
669	SET_ANIMATION(op, op->direction);	549	SET_ANIMATION (op, op->direction);
670	update_object(op,UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
671	}	551	}
672		552
673	/*	553	/*
674	* Updates the speed of an object. If the speed changes from 0 to another	554	* Updates the speed of an object. If the speed changes from 0 to another
675	* value, or vice versa, then add/remove the object from the active list.	555	* value, or vice versa, then add/remove the object from the active list.
676	* This function needs to be called whenever the speed of an object changes.	556	* This function needs to be called whenever the speed of an object changes.
677	*/	557	*/
678		558	void
679	void update_ob_speed(object *op) {	559	object::set_speed (float speed)
680	extern int arch_init;	560	{
681		561	if (flag [FLAG_FREED] && speed)
682	/* No reason putting the archetypes objects on the speed list,	562	{
683	* since they never really need to be updated.
684	*/
685
686	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {
687	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	563	LOG (llevError, "Object %s is freed but has speed.\n", &name);
688	#ifdef MANY_CORES
689	abort();
690	#else
691	op->speed = 0;	564	speed = 0;
692	#endif
693	}	565	}
694	if (arch_init) {
695	return;
696	}
697	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
698	/* If already on active list, don't do anything */
699	if (op->active_next || op->active_prev || op==active_objects)
700	return;
701		566
702	/* process_events() expects us to insert the object at the beginning	567	this->speed = speed;
703	* of the list. */	568
704	op->active_next = active_objects;	569	if (has_active_speed ())
705	if (op->active_next!=NULL)	570	activate ();
706	op->active_next->active_prev = op;
707	active_objects = op;
708	}
709	else {	571	else
710	/* If not on the active list, nothing needs to be done */	572	deactivate ();
711	if (!op->active_next && !op->active_prev && op!=active_objects)
712	return;
713
714	if (op->active_prev==NULL) {
715	active_objects = op->active_next;
716	if (op->active_next!=NULL)
717	op->active_next->active_prev = NULL;
718	}
719	else {
720	op->active_prev->active_next = op->active_next;
721	if (op->active_next)
722	op->active_next->active_prev = op->active_prev;
723	}
724	op->active_next = NULL;
725	op->active_prev = NULL;
726	}
727	}	573	}
728		574
729	/* This function removes object 'op' from the list of active
730	* objects.
731	* This should only be used for style maps or other such
732	* reference maps where you don't want an object that isn't
733	* in play chewing up cpu time getting processed.
734	* The reverse of this is to call update_ob_speed, which
735	* will do the right thing based on the speed of the object.
736	*/
737	void remove_from_active_list(object *op)
738	{
739	/* If not on the active list, nothing needs to be done */
740	if (!op->active_next && !op->active_prev && op!=active_objects)
741	return;
742
743	if (op->active_prev==NULL) {
744	active_objects = op->active_next;
745	if (op->active_next!=NULL)
746	op->active_next->active_prev = NULL;
747	}
748	else {
749	op->active_prev->active_next = op->active_next;
750	if (op->active_next)
751	op->active_next->active_prev = op->active_prev;
752	}
753	op->active_next = NULL;
754	op->active_prev = NULL;
755	}
756
757	/*	575	/*
758	* update_object() updates the array which represents the map.	576	* update_object() updates the the map.
759	* It takes into account invisible objects (and represent squares covered	577	* It takes into account invisible objects (and represent squares covered
760	* by invisible objects by whatever is below them (unless it's another	578	* by invisible objects by whatever is below them (unless it's another
761	* invisible object, etc...)	579	* invisible object, etc...)
762	* If the object being updated is beneath a player, the look-window	580	* If the object being updated is beneath a player, the look-window
763	* of that player is updated (this might be a suboptimal way of	581	* of that player is updated (this might be a suboptimal way of
764	* updating that window, though, since update_object() is called _often_)	582	* updating that window, though, since update_object() is called _often_)
765	*	583	*
766	* action is a hint of what the caller believes need to be done.	584	* action is a hint of what the caller believes need to be done.
767	* For example, if the only thing that has changed is the face (due to
768	* an animation), we don't need to call update_position until that actually
769	* comes into view of a player. OTOH, many other things, like addition/removal
770	* of walls or living creatures may need us to update the flags now.
771	* current action are:	585	* current action are:
772	* UP_OBJ_INSERT: op was inserted	586	* UP_OBJ_INSERT: op was inserted
773	* UP_OBJ_REMOVE: op was removed	587	* UP_OBJ_REMOVE: op was removed
774	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	588	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
775	* as that is easier than trying to look at what may have changed.	589	* as that is easier than trying to look at what may have changed.
776	* UP_OBJ_FACE: only the objects face has changed.	590	* UP_OBJ_FACE: only the objects face has changed.
777	*/	591	*/
778		592	void
779	void update_object(object *op, int action) {	593	update_object (object *op, int action)
780	int update_now=0, flags;	594	{
781	MoveType move_on, move_off, move_block, move_slow;	595	MoveType move_on, move_off, move_block, move_slow;
782		596
783	if (op == NULL) {	597	if (op == NULL)
		598	{
784	/* this should never happen */	599	/* this should never happen */
785	LOG(llevDebug,"update_object() called for NULL object.\n");	600	LOG (llevDebug, "update_object() called for NULL object.\n");
786	return;	601	return;
787	}
788		602	}
789	if(op->env!=NULL) {	603
		604	if (op->env)
		605	{
790	/* Animation is currently handled by client, so nothing	606	/* Animation is currently handled by client, so nothing
791	* to do in this case.	607	* to do in this case.
792	*/	608	*/
793	return;	609	return;
794	}	610	}
795		611
796	/* If the map is saving, don't do anything as everything is	612	/* If the map is saving, don't do anything as everything is
797	* going to get freed anyways.	613	* going to get freed anyways.
798	*/	614	*/
799	if (!op->map || op->map->in_memory == MAP_SAVING) return;	615	if (!op->map || op->map->in_memory == MAP_SAVING)
800		616	return;
		617
801	/* make sure the object is within map boundaries */	618	/* make sure the object is within map boundaries */
802	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	619	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
803	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	620	{
804	LOG(llevError,"update_object() called for object out of map!\n");	621	LOG (llevError, "update_object() called for object out of map!\n");
805	#ifdef MANY_CORES	622	#ifdef MANY_CORES
806	abort();	623	abort ();
807	#endif	624	#endif
808	return;	625	return;
809	}
810		626	}
811	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
812	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
813	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
814	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
815	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
816	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
817		627
		628	mapspace &m = op->ms ();
		629
		630	if (!(m.flags_ & P_UPTODATE))
		631	/* nop */;
818	if (action == UP_OBJ_INSERT) {	632	else if (action == UP_OBJ_INSERT)
		633	{
		634	// this is likely overkill, TODO: revisit (schmorp)
819	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	635	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
820	update_now=1;
821
822	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	636	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
823	update_now=1;	637	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
824		638	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		639	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
825	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	640	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
826	update_now=1;	641	|| (m.move_on | op->move_on ) != m.move_on
827
828	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
829	update_now=1;
830
831	if ((move_on | op->move_on) != move_on) update_now=1;
832	if ((move_off | op->move_off) != move_off) update_now=1;	642	|| (m.move_off | op->move_off ) != m.move_off
		643	|| (m.move_slow | op->move_slow) != m.move_slow
833	/* This isn't perfect, but I don't expect a lot of objects to	644	/* This isn't perfect, but I don't expect a lot of objects to
834	* to have move_allow right now.	645	* to have move_allow right now.
835	*/	646	*/
836	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	647	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
837	update_now=1;	648	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
838	if ((move_slow | op->move_slow) != move_slow) update_now=1;	649	m.flags_ = 0;
839	}	650	}
840	/* if the object is being removed, we can't make intelligent	651	/* if the object is being removed, we can't make intelligent
841	* decisions, because remove_ob can't really pass the object	652	* decisions, because remove_ob can't really pass the object
842	* that is being removed.	653	* that is being removed.
843	*/	654	*/
844	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	655	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
845	update_now=1;	656	m.flags_ = 0;
846	} else if (action == UP_OBJ_FACE) {	657	else if (action == UP_OBJ_FACE)
847	/* Nothing to do for that case */	658	/* Nothing to do for that case */ ;
848	}
849	else {	659	else
850	LOG(llevError,"update_object called with invalid action: %d\n", action);	660	LOG (llevError, "update_object called with invalid action: %d\n", action);
851	}
852		661
853	if (update_now) {
854	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
855	update_position(op->map, op->x, op->y);
856	}
857
858	if(op->more!=NULL)	662	if (op->more)
859	update_object(op->more, action);	663	update_object (op->more, action);
860	}	664	}
861		665
		666	object *object::first;
862		667
863	/*	668	object::object ()
864	* free_object() frees everything allocated by an object, removes	669	{
865	* it from the list of used objects, and puts it on the list of	670	SET_FLAG (this, FLAG_REMOVED);
866	* free objects. The IS_FREED() flag is set in the object.	671
867	* The object must have been removed by remove_ob() first for	672	expmul = 1.0;
868	* this function to succeed.	673	face = blank_face;
869	*	674	}
870	* If free_inventory is set, free inventory as well. Else drop items in	675
871	* inventory to the ground.	676	object::~object ()
872	*/	677	{
		678	free_key_values (this);
		679	}
		680
		681	void object::link ()
		682	{
		683	count = ++ob_count;
		684	uuid = gen_uuid ();
		685
		686	prev = 0;
		687	next = object::first;
		688
		689	if (object::first)
		690	object::first->prev = this;
		691
		692	object::first = this;
		693	}
		694
		695	void object::unlink ()
		696	{
		697	if (this == object::first)
		698	object::first = next;
		699
		700	/* Remove this object from the list of used objects */
		701	if (prev) prev->next = next;
		702	if (next) next->prev = prev;
		703
		704	prev = 0;
		705	next = 0;
		706	}
		707
		708	bool
		709	object::active () const
		710	{
		711	return active_next || active_prev || this == active_objects;
		712	}
873		713
874	void	714	void
875	free_object (object * ob)	715	object::activate ()
876	{	716	{
877	free_object2 (ob, 0);	717	/* If already on active list, don't do anything */
		718	if (active ())
		719	return;
		720
		721	if (has_active_speed ())
		722	{
		723	/* process_events() expects us to insert the object at the beginning
		724	* of the list. */
		725	active_next = active_objects;
		726
		727	if (active_next)
		728	active_next->active_prev = this;
		729
		730	active_objects = this;
		731	}
878	}	732	}
879		733
880	void	734	void
881	free_object2 (object * ob, int free_inventory)	735	object::activate_recursive ()
882	{	736	{
883	object *tmp, *op;	737	activate ();
884		738
885	if (!QUERY_FLAG (ob, FLAG_REMOVED))	739	for (object *op = inv; op; op = op->below)
886	{	740	op->activate_recursive ();
887	LOG (llevDebug, "Free object called with non removed object\n");	741	}
888	dump_object (ob);
889	#ifdef MANY_CORES
890	abort ();
891	#endif
892	}
893		742
894	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	743	/* This function removes object 'op' from the list of active
895	{	744	* objects.
896	LOG (llevMonster, "Warning: tried to free friendly object.\n");	745	* This should only be used for style maps or other such
897	remove_friendly_object (ob);	746	* reference maps where you don't want an object that isn't
898	}	747	* in play chewing up cpu time getting processed.
899		748	* The reverse of this is to call update_ob_speed, which
900	if (QUERY_FLAG (ob, FLAG_FREED))	749	* will do the right thing based on the speed of the object.
901	{	750	*/
902	dump_object (ob);	751	void
903	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	752	object::deactivate ()
		753	{
		754	/* If not on the active list, nothing needs to be done */
		755	if (!active ())
904	return;	756	return;
905	}
906		757
907	if (ob->more != NULL)	758	if (active_prev == 0)
908	{
909	free_object2 (ob->more, free_inventory);
910	ob->more = NULL;
911	}
912
913	if (ob->inv)
914	{
915	/* Only if the space blocks everything do we not process -
916	* if some form of movement is allowed, let objects
917	* drop on that space.
918	*/
919	if (free_inventory || ob->map == NULL
920	|| ob->map->in_memory != MAP_IN_MEMORY
921	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))
922	{
923	op = ob->inv;
924
925	while (op != NULL)
926	{	759	{
927	tmp = op->below;	760	active_objects = active_next;
928	remove_ob (op);	761	if (active_next)
929	free_object2 (op, free_inventory);	762	active_next->active_prev = 0;
930	op = tmp;
931	}
932	}
933	else
934	{ /* Put objects in inventory onto this space */
935	op = ob->inv;
936
937	while (op != NULL)
938	{
939	tmp = op->below;
940	remove_ob (op);
941
942	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
943	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE
944	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
945	free_object (op);
946	else
947	{
948	op->x = ob->x;
949	op->y = ob->y;
950	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */
951	}
952
953	op = tmp;
954	}
955	}
956	}
957
958	/* Remove object from the active list */
959	ob->speed = 0;
960	update_ob_speed (ob);
961
962	SET_FLAG (ob, FLAG_FREED);
963	ob->count = 0;
964
965	/* Remove this object from the list of used objects */
966	if (ob->prev == NULL)
967	{
968	objects = ob->next;
969
970	if (objects != NULL)
971	objects->prev = NULL;
972	}	763	}
973	else	764	else
974	{	765	{
975	ob->prev->next = ob->next;	766	active_prev->active_next = active_next;
		767	if (active_next)
		768	active_next->active_prev = active_prev;
		769	}
976		770
977	if (ob->next != NULL)	771	active_next = 0;
978	ob->next->prev = ob->prev;	772	active_prev = 0;
		773	}
		774
		775	void
		776	object::deactivate_recursive ()
		777	{
		778	for (object *op = inv; op; op = op->below)
		779	op->deactivate_recursive ();
		780
		781	deactivate ();
		782	}
		783
		784	void
		785	object::set_flag_inv (int flag, int value)
		786	{
		787	for (object *op = inv; op; op = op->below)
		788	{
		789	op->flag [flag] = value;
		790	op->set_flag_inv (flag, value);
		791	}
		792	}
		793
		794	/*
		795	* Remove and free all objects in the inventory of the given object.
		796	* object.c ?
		797	*/
		798	void
		799	object::destroy_inv (bool drop_to_ground)
		800	{
		801	// need to check first, because the checks below might segfault
		802	// as we might be on an invalid mapspace and crossfire code
		803	// is too buggy to ensure that the inventory is empty.
		804	// corollary: if you create arrows etc. with stuff in tis inventory,
		805	// cf will crash below with off-map x and y
		806	if (!inv)
		807	return;
		808
		809	/* Only if the space blocks everything do we not process -
		810	* if some form of movement is allowed, let objects
		811	* drop on that space.
		812	*/
		813	if (!drop_to_ground
		814	|| !map
		815	|| map->in_memory != MAP_IN_MEMORY
		816	|| ms ().move_block == MOVE_ALL)
		817	{
		818	while (inv)
		819	{
		820	inv->destroy_inv (drop_to_ground);
		821	inv->destroy ();
		822	}
		823	}
		824	else
		825	{ /* Put objects in inventory onto this space */
		826	while (inv)
		827	{
		828	object *op = inv;
		829
		830	if (op->flag [FLAG_STARTEQUIP]
		831	|| op->flag [FLAG_NO_DROP]
		832	|| op->type == RUNE
		833	|| op->type == TRAP
		834	|| op->flag [FLAG_IS_A_TEMPLATE])
		835	op->destroy ();
		836	else
		837	map->insert (op, x, y);
		838	}
		839	}
		840	}
		841
		842	object *object::create ()
		843	{
		844	object *op = new object;
		845	op->link ();
		846	return op;
		847	}
		848
		849	void
		850	object::do_destroy ()
		851	{
		852	if (flag [FLAG_IS_LINKED])
		853	remove_button_link (this);
		854
		855	if (flag [FLAG_FRIENDLY])
		856	remove_friendly_object (this);
		857
		858	if (!flag [FLAG_REMOVED])
		859	remove ();
		860
		861	if (flag [FLAG_FREED])
		862	return;
		863
		864	set_speed (0);
		865
		866	flag [FLAG_FREED] = 1;
		867
		868	attachable::do_destroy ();
		869
		870	destroy_inv (true);
		871	unlink ();
		872
		873	// hack to ensure that freed objects still have a valid map
		874	{
		875	static maptile *freed_map; // freed objects are moved here to avoid crashes
		876
		877	if (!freed_map)
		878	{
		879	freed_map = new maptile;
		880
		881	freed_map->name = "/internal/freed_objects_map";
		882	freed_map->width = 3;
		883	freed_map->height = 3;
		884
		885	freed_map->alloc ();
		886	freed_map->in_memory = MAP_IN_MEMORY;
979	}	887	}
980		888
981	free_key_values (ob);	889	map = freed_map;
		890	x = 1;
		891	y = 1;
		892	}
982		893
983	/* Now link it with the free_objects list: */	894	head = 0;
984	ob->prev = 0;
985	ob->next = 0;
986		895
987	delete ob;	896	if (more)
		897	{
		898	more->destroy ();
		899	more = 0;
		900	}
		901
		902	// clear those pointers that likely might have circular references to us
		903	owner = 0;
		904	enemy = 0;
		905	attacked_by = 0;
		906
		907	// only relevant for players(?), but make sure of it anyways
		908	contr = 0;
		909	}
		910
		911	void
		912	object::destroy (bool destroy_inventory)
		913	{
		914	if (destroyed ())
		915	return;
		916
		917	if (destroy_inventory)
		918	destroy_inv (false);
		919
		920	attachable::destroy ();
988	}	921	}
989		922
990	/*	923	/*
991	* sub_weight() recursively (outwards) subtracts a number from the	924	* sub_weight() recursively (outwards) subtracts a number from the
992	* weight of an object (and what is carried by it's environment(s)).	925	* weight of an object (and what is carried by it's environment(s)).
993	*/	926	*/
994		927	void
995	void sub_weight (object *op, signed long weight) {	928	sub_weight (object *op, signed long weight)
		929	{
996	while (op != NULL) {	930	while (op != NULL)
		931	{
997	if (op->type == CONTAINER) {	932	if (op->type == CONTAINER)
998	weight=(signed long)(weight*(100-op->stats.Str)/100);	933	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
999	}	934
1000	op->carrying-=weight;	935	op->carrying -= weight;
1001	op = op->env;	936	op = op->env;
1002	}	937	}
1003	}	938	}
1004		939
1005	/* remove_ob(op):	940	/* op->remove ():
1006	* This function removes the object op from the linked list of objects	941	* This function removes the object op from the linked list of objects
1007	* which it is currently tied to. When this function is done, the	942	* which it is currently tied to. When this function is done, the
1008	* object will have no environment. If the object previously had an	943	* object will have no environment. If the object previously had an
1009	* environment, the x and y coordinates will be updated to	944	* environment, the x and y coordinates will be updated to
1010	* the previous environment.	945	* the previous environment.
1011	* Beware: This function is called from the editor as well!	946	* Beware: This function is called from the editor as well!
1012	*/	947	*/
1013		948	void
1014	void remove_ob(object *op) {	949	object::remove ()
		950	{
1015	object *tmp,*last=NULL;	951	object *tmp, *last = 0;
1016	object *otmp;	952	object *otmp;
1017	tag_t tag;
1018	int check_walk_off;
1019	mapstruct *m;
1020	sint16 x,y;
1021
1022		953
1023	if(QUERY_FLAG(op,FLAG_REMOVED)) {	954	if (QUERY_FLAG (this, FLAG_REMOVED))
1024	dump_object(op);	955	return;
1025	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1026		956
1027	/* Changed it to always dump core in this case. As has been learned
1028	* in the past, trying to recover from errors almost always
1029	* make things worse, and this is a real error here - something
1030	* that should not happen.
1031	* Yes, if this was a mission critical app, trying to do something
1032	* to recover may make sense, but that is because failure of the app
1033	* may have other disastrous problems. Cf runs out of a script
1034	* so is easily enough restarted without any real problems.
1035	* MSW 2001-07-01
1036	*/
1037	abort();
1038	}
1039	if(op->more!=NULL)
1040	remove_ob(op->more);
1041
1042	SET_FLAG(op, FLAG_REMOVED);	957	SET_FLAG (this, FLAG_REMOVED);
		958	INVOKE_OBJECT (REMOVE, this);
1043		959
		960	if (more)
		961	more->remove ();
		962
1044	/*	963	/*
1045	* In this case, the object to be removed is in someones	964	* In this case, the object to be removed is in someones
1046	* inventory.	965	* inventory.
1047	*/	966	*/
1048	if(op->env!=NULL) {	967	if (env)
		968	{
1049	if(op->nrof)	969	if (nrof)
1050	sub_weight(op->env, op->weight*op->nrof);	970	sub_weight (env, weight * nrof);
1051	else	971	else
1052	sub_weight(op->env, op->weight+op->carrying);	972	sub_weight (env, weight + carrying);
1053		973
1054	/* NO_FIX_PLAYER is set when a great many changes are being	974	/* NO_FIX_PLAYER is set when a great many changes are being
1055	* made to players inventory. If set, avoiding the call	975	* made to players inventory. If set, avoiding the call
1056	* to save cpu time.	976	* to save cpu time.
1057	*/	977	*/
1058	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	978	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1059	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	979	otmp->update_stats ();
1060	fix_player(otmp);
1061		980
1062	if(op->above!=NULL)	981	if (above)
1063	op->above->below=op->below;	982	above->below = below;
1064	else	983	else
1065	op->env->inv=op->below;	984	env->inv = below;
1066		985
1067	if(op->below!=NULL)	986	if (below)
1068	op->below->above=op->above;	987	below->above = above;
1069		988
1070	/* we set up values so that it could be inserted into	989	/* we set up values so that it could be inserted into
1071	* the map, but we don't actually do that - it is up	990	* the map, but we don't actually do that - it is up
1072	* to the caller to decide what we want to do.	991	* to the caller to decide what we want to do.
		992	*/
		993	x = env->x, y = env->y;
		994	map = env->map;
		995	above = 0, below = 0;
		996	env = 0;
		997	}
		998	else if (map)
		999	{
		1000	if (type == PLAYER)
		1001	{
		1002	--map->players;
		1003	map->touch ();
		1004	}
		1005
		1006	map->dirty = true;
		1007
		1008	/* link the object above us */
		1009	if (above)
		1010	above->below = below;
		1011	else
		1012	map->at (x, y).top = below; /* we were top, set new top */
		1013
		1014	/* Relink the object below us, if there is one */
		1015	if (below)
		1016	below->above = above;
		1017	else
		1018	{
		1019	/* Nothing below, which means we need to relink map object for this space
		1020	* use translated coordinates in case some oddness with map tiling is
		1021	* evident
1073	*/	1022	*/
1074	op->x=op->env->x,op->y=op->env->y;	1023	if (GET_MAP_OB (map, x, y) != this)
1075	op->map=op->env->map;	1024	{
1076	op->above=NULL,op->below=NULL;	1025	char *dump = dump_object (this);
1077	op->env=NULL;	1026	LOG (llevError,
		1027	"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", dump);
		1028	free (dump);
		1029	dump = dump_object (GET_MAP_OB (map, x, y));
		1030	LOG (llevError, "%s\n", dump);
		1031	free (dump);
		1032	}
		1033
		1034	map->at (x, y).bot = above; /* goes on above it. */
		1035	}
		1036
		1037	above = 0;
		1038	below = 0;
		1039
		1040	if (map->in_memory == MAP_SAVING)
1078	return;	1041	return;
1079	}
1080		1042
1081	/* If we get here, we are removing it from a map */	1043	int check_walk_off = !flag [FLAG_NO_APPLY];
1082	if (op->map == NULL) return;
1083		1044
1084	x = op->x;	1045	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1085	y = op->y;
1086	m = get_map_from_coord(op->map, &x, &y);
1087
1088	if (!m) {
1089	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1090	op->map->path, op->x, op->y);
1091	/* in old days, we used to set x and y to 0 and continue.
1092	* it seems if we get into this case, something is probablye
1093	* screwed up and should be fixed.
1094	*/
1095	abort();
1096	}
1097	if (op->map != m) {
1098	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1099	op->map->path, m->path, op->x, op->y, x, y);
1100	}
1101
1102	/* Re did the following section of code - it looks like it had
1103	* lots of logic for things we no longer care about
1104	*/
1105
1106	/* link the object above us */
1107	if (op->above)
1108	op->above->below=op->below;
1109	else
1110	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1111
1112	/* Relink the object below us, if there is one */
1113	if(op->below) {
1114	op->below->above=op->above;
1115	} else {
1116	/* Nothing below, which means we need to relink map object for this space
1117	* use translated coordinates in case some oddness with map tiling is
1118	* evident
1119	*/
1120	if(GET_MAP_OB(m,x,y)!=op) {
1121	dump_object(op);
1122	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);
1123	dump_object(GET_MAP_OB(m,x,y));
1124	LOG(llevError,"%s\n",errmsg);
1125	}	1046	{
1126	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1127	}
1128	op->above=NULL;
1129	op->below=NULL;
1130
1131	if (op->map->in_memory == MAP_SAVING)
1132	return;
1133
1134	tag = op->count;
1135	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1136	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1137	/* No point updating the players look faces if he is the object	1047	/* No point updating the players look faces if he is the object
1138	* being removed.	1048	* being removed.
1139	*/	1049	*/
1140		1050
1141	if(tmp->type==PLAYER && tmp!=op) {	1051	if (tmp->type == PLAYER && tmp != this)
		1052	{
1142	/* If a container that the player is currently using somehow gets	1053	/* If a container that the player is currently using somehow gets
1143	* removed (most likely destroyed), update the player view	1054	* removed (most likely destroyed), update the player view
1144	* appropriately.	1055	* appropriately.
1145	*/	1056	*/
1146	if (tmp->container==op) {	1057	if (tmp->container == this)
1147	CLEAR_FLAG(op, FLAG_APPLIED);	1058	{
		1059	flag [FLAG_APPLIED] = 0;
1148	tmp->container=NULL;	1060	tmp->container = 0;
		1061	}
		1062
		1063	if (tmp->contr->ns)
		1064	tmp->contr->ns->floorbox_update ();
1149	}	1065	}
1150	tmp->contr->socket.update_look=1;	1066
1151	}
1152	/* See if player moving off should effect something */	1067	/* See if object moving off should effect something */
1153	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1068	if (check_walk_off
		1069	&& ((move_type & tmp->move_off)
1154	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1070	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1155		1071	{
1156	move_apply(tmp, op, NULL);	1072	move_apply (tmp, this, 0);
		1073
1157	if (was_destroyed (op, tag)) {	1074	if (destroyed ())
1158	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1075	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1159	"leaving object\n", &tmp->name, &tmp->arch->name);
1160	}	1076	}
1161	}
1162		1077
1163	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1078	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1164		1079	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1165	if(tmp->above == tmp)	1080	if (tmp->above == tmp)
1166	tmp->above = NULL;	1081	tmp->above = 0;
		1082
1167	last=tmp;	1083	last = tmp;
1168	}	1084	}
		1085
1169	/* last == NULL of there are no objects on this space */	1086	/* last == NULL if there are no objects on this space */
1170	if (last==NULL) {	1087	//TODO: this makes little sense, why only update the topmost object?
1171	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1088	if (!last)
1172	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1089	map->at (x, y).flags_ = 0;
1173	* those out anyways, and if there are any flags set right now, they won't
1174	* be correct anyways.
1175	*/
1176	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1177	update_position(op->map, op->x, op->y);
1178	}
1179	else	1090	else
1180	update_object(last, UP_OBJ_REMOVE);	1091	update_object (last, UP_OBJ_REMOVE);
1181		1092
1182	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1093	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1183	update_all_los(op->map, op->x, op->y);	1094	update_all_los (map, x, y);
1184		1095	}
1185	}	1096	}
1186		1097
1187	/*	1098	/*
1188	* merge_ob(op,top):	1099	* merge_ob(op,top):
1189	*	1100	*
1190	* This function goes through all objects below and including top, and	1101	* This function goes through all objects below and including top, and
1191	* merges op to the first matching object.	1102	* merges op to the first matching object.
1192	* If top is NULL, it is calculated.	1103	* If top is NULL, it is calculated.
1193	* Returns pointer to object if it succeded in the merge, otherwise NULL	1104	* Returns pointer to object if it succeded in the merge, otherwise NULL
1194	*/	1105	*/
1195		1106	object *
1196	object *merge_ob(object *op, object *top) {	1107	merge_ob (object *op, object *top)
		1108	{
1197	if(!op->nrof)	1109	if (!op->nrof)
1198	return 0;	1110	return 0;
1199	if(top==NULL)	1111
		1112	if (top)
1200	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1113	for (top = op; top && top->above; top = top->above)
		1114	;
		1115
1201	for(;top!=NULL;top=top->below) {	1116	for (; top; top = top->below)
		1117	{
1202	if(top==op)	1118	if (top == op)
1203	continue;	1119	continue;
1204	if (CAN_MERGE(op,top))	1120
1205	{	1121	if (object::can_merge (op, top))
		1122	{
1206	top->nrof+=op->nrof;	1123	top->nrof += op->nrof;
		1124
1207	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1125	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1208	op->weight = 0; /* Don't want any adjustements now */	1126	op->weight = 0; /* Don't want any adjustements now */
1209	remove_ob(op);	1127	op->destroy ();
1210	free_object(op);
1211	return top;	1128	return top;
1212	}	1129	}
1213	}	1130	}
		1131
1214	return NULL;	1132	return 0;
1215	}	1133	}
1216		1134
1217	/*	1135	/*
1218	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1136	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1219	* job preparing multi-part monsters	1137	* job preparing multi-part monsters
1220	*/	1138	*/
		1139	object *
1221	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1140	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1222	object* tmp;	1141	{
1223	if (op->head)	1142	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1224	op=op->head;	1143	{
1225	for (tmp=op;tmp;tmp=tmp->more){
1226	tmp->x=x+tmp->arch->clone.x;	1144	tmp->x = x + tmp->arch->clone.x;
1227	tmp->y=y+tmp->arch->clone.y;	1145	tmp->y = y + tmp->arch->clone.y;
1228	}	1146	}
		1147
1229	return insert_ob_in_map (op, m, originator, flag);	1148	return insert_ob_in_map (op, m, originator, flag);
1230	}	1149	}
1231		1150
1232	/*	1151	/*
1233	* insert_ob_in_map (op, map, originator, flag):	1152	* insert_ob_in_map (op, map, originator, flag):
1234	* This function inserts the object in the two-way linked list	1153	* This function inserts the object in the two-way linked list
…		…
1247	* Return value:	1166	* Return value:
1248	* new object if 'op' was merged with other object	1167	* new object if 'op' was merged with other object
1249	* NULL if 'op' was destroyed	1168	* NULL if 'op' was destroyed
1250	* just 'op' otherwise	1169	* just 'op' otherwise
1251	*/	1170	*/
1252		1171	object *
1253	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1172	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1254	{	1173	{
1255	object *tmp, *top, *floor=NULL;	1174	object *tmp, *top, *floor = NULL;
1256	sint16 x,y;	1175	sint16 x, y;
1257		1176
1258	if (QUERY_FLAG (op, FLAG_FREED)) {	1177	if (QUERY_FLAG (op, FLAG_FREED))
		1178	{
1259	LOG (llevError, "Trying to insert freed object!\n");	1179	LOG (llevError, "Trying to insert freed object!\n");
1260	return NULL;	1180	return NULL;
		1181	}
		1182
		1183	if (!m)
1261	}	1184	{
1262	if(m==NULL) {
1263	dump_object(op);	1185	char *dump = dump_object (op);
1264	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1186	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1187	free (dump);
1265	return op;	1188	return op;
1266	}	1189	}
		1190
1267	if(out_of_map(m,op->x,op->y)) {	1191	if (out_of_map (m, op->x, op->y))
		1192	{
1268	dump_object(op);	1193	char *dump = dump_object (op);
1269	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1194	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1270	#ifdef MANY_CORES	1195	#ifdef MANY_CORES
1271	/* Better to catch this here, as otherwise the next use of this object	1196	/* Better to catch this here, as otherwise the next use of this object
1272	* is likely to cause a crash. Better to find out where it is getting	1197	* is likely to cause a crash. Better to find out where it is getting
1273	* improperly inserted.	1198	* improperly inserted.
1274	*/	1199	*/
1275	abort();	1200	abort ();
1276	#endif	1201	#endif
		1202	free (dump);
1277	return op;	1203	return op;
1278	}	1204	}
		1205
1279	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1206	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1207	{
1280	dump_object(op);	1208	char *dump = dump_object (op);
1281	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1209	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1210	free (dump);
1282	return op;	1211	return op;
		1212	}
		1213
		1214	if (op->more)
1283	}	1215	{
1284	if(op->more!=NULL) {
1285	/* The part may be on a different map. */	1216	/* The part may be on a different map. */
1286		1217
1287	object *more = op->more;	1218	object *more = op->more;
1288		1219
1289	/* We really need the caller to normalize coordinates - if	1220	/* We really need the caller to normalise coordinates - if
1290	* we set the map, that doesn't work if the location is within	1221	* we set the map, that doesn't work if the location is within
1291	* a map and this is straddling an edge. So only if coordinate	1222	* a map and this is straddling an edge. So only if coordinate
1292	* is clear wrong do we normalize it.	1223	* is clear wrong do we normalise it.
1293	*/	1224	*/
1294	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1225	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1295	more->map = get_map_from_coord(m, &more->x, &more->y);	1226	more->map = get_map_from_coord (m, &more->x, &more->y);
1296	} else if (!more->map) {	1227	else if (!more->map)
		1228	{
1297	/* For backwards compatibility - when not dealing with tiled maps,	1229	/* For backwards compatibility - when not dealing with tiled maps,
1298	* more->map should always point to the parent.	1230	* more->map should always point to the parent.
1299	*/	1231	*/
1300	more->map = m;	1232	more->map = m;
1301	}	1233	}
1302		1234
1303	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1235	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1236	{
1304	if ( ! op->head)	1237	if (!op->head)
1305	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1238	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1239
1306	return NULL;	1240	return 0;
1307	}	1241	}
1308	}	1242	}
		1243
1309	CLEAR_FLAG(op,FLAG_REMOVED);	1244	CLEAR_FLAG (op, FLAG_REMOVED);
1310		1245
1311	/* Ideally, the caller figures this out. However, it complicates a lot	1246	/* Ideally, the caller figures this out. However, it complicates a lot
1312	* of areas of callers (eg, anything that uses find_free_spot would now	1247	* of areas of callers (eg, anything that uses find_free_spot would now
1313	* need extra work	1248	* need extra work
1314	*/	1249	*/
1315	op->map=get_map_from_coord(m, &op->x, &op->y);	1250	op->map = get_map_from_coord (m, &op->x, &op->y);
1316	x = op->x;	1251	x = op->x;
1317	y = op->y;	1252	y = op->y;
1318		1253
1319	/* this has to be done after we translate the coordinates.	1254	/* this has to be done after we translate the coordinates.
1320	*/	1255	*/
1321	if(op->nrof && !(flag & INS_NO_MERGE)) {	1256	if (op->nrof && !(flag & INS_NO_MERGE))
1322	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1257	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1323	if (CAN_MERGE(op,tmp)) {	1258	if (object::can_merge (op, tmp))
		1259	{
1324	op->nrof+=tmp->nrof;	1260	op->nrof += tmp->nrof;
1325	remove_ob(tmp);	1261	tmp->destroy ();
1326	free_object(tmp);	1262	}
		1263
		1264	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1265	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1266
		1267	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1268	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1269
		1270	if (flag & INS_BELOW_ORIGINATOR)
		1271	{
		1272	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1273	{
		1274	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1275	abort ();
		1276	}
		1277
		1278	op->above = originator;
		1279	op->below = originator->below;
		1280
		1281	if (op->below)
		1282	op->below->above = op;
		1283	else
		1284	op->ms ().bot = op;
		1285
		1286	/* since *below* originator, no need to update top */
		1287	originator->below = op;
		1288	}
		1289	else
		1290	{
		1291	/* If there are other objects, then */
		1292	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1293	{
		1294	object *last = 0;
		1295
		1296	/*
		1297	* If there are multiple objects on this space, we do some trickier handling.
		1298	* We've already dealt with merging if appropriate.
		1299	* Generally, we want to put the new object on top. But if
		1300	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1301	* floor, we want to insert above that and no further.
		1302	* Also, if there are spell objects on this space, we stop processing
		1303	* once we get to them. This reduces the need to traverse over all of
		1304	* them when adding another one - this saves quite a bit of cpu time
		1305	* when lots of spells are cast in one area. Currently, it is presumed
		1306	* that flying non pickable objects are spell objects.
		1307	*/
		1308	while (top)
		1309	{
		1310	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1311	floor = top;
		1312
		1313	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1314	{
		1315	/* We insert above top, so we want this object below this */
		1316	top = top->below;
		1317	break;
		1318	}
		1319
		1320	last = top;
		1321	top = top->above;
1327	}	1322	}
1328	}
1329		1323
1330	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1324	/* Don't want top to be NULL, so set it to the last valid object */
1331	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1325	top = last;
1332	if (!QUERY_FLAG(op, FLAG_ALIVE))
1333	CLEAR_FLAG(op, FLAG_NO_STEAL);
1334		1326
1335	if (flag & INS_BELOW_ORIGINATOR) {	1327	/* We let update_position deal with figuring out what the space
1336	if (originator->map != op->map || originator->x != op->x ||	1328	* looks like instead of lots of conditions here.
1337	originator->y != op->y) {	1329	* makes things faster, and effectively the same result.
1338	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1339	abort();
1340	}
1341	op->above = originator;
1342	op->below = originator->below;
1343	if (op->below) op->below->above = op;
1344	else SET_MAP_OB(op->map, op->x, op->y, op);
1345	/* since *below* originator, no need to update top */
1346	originator->below = op;
1347	} else {
1348	/* If there are other objects, then */
1349	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1350	object *last=NULL;
1351	/*	1330	*/
1352	* If there are multiple objects on this space, we do some trickier handling.	1331
1353	* We've already dealt with merging if appropriate.	1332	/* Have object 'fall below' other objects that block view.
1354	* Generally, we want to put the new object on top. But if	1333	* Unless those objects are exits, type 66
1355	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last	1334	* If INS_ON_TOP is used, don't do this processing
1356	* floor, we want to insert above that and no further.	1335	* Need to find the object that in fact blocks view, otherwise
1357	* Also, if there are spell objects on this space, we stop processing	1336	* stacking is a bit odd.
1358	* once we get to them. This reduces the need to traverse over all of	1337	*/
1359	* them when adding another one - this saves quite a bit of cpu time	1338	if (!(flag & INS_ON_TOP) &&
1360	* when lots of spells are cast in one area. Currently, it is presumed	1339	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1361	* that flying non pickable objects are spell objects.	1340	{
		1341	for (last = top; last != floor; last = last->below)
		1342	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1343	break;
		1344	/* Check to see if we found the object that blocks view,
		1345	* and make sure we have a below pointer for it so that
		1346	* we can get inserted below this one, which requires we
		1347	* set top to the object below us.
1362	*/	1348	*/
1363		1349	if (last && last->below && last != floor)
1364	while (top != NULL) {
1365	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1366	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1367	if (QUERY_FLAG(top, FLAG_NO_PICK)
1368	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1369	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1370	{
1371	/* We insert above top, so we want this object below this */
1372	top=top->below;
1373	break;
1374	}
1375	last = top;
1376	top = top->above;	1350	top = last->below;
1377	}	1351	}
1378	/* Don't want top to be NULL, so set it to the last valid object */
1379	top = last;
1380
1381	/* We let update_position deal with figuring out what the space
1382	* looks like instead of lots of conditions here.
1383	* makes things faster, and effectively the same result.
1384	*/
1385
1386	/* Have object 'fall below' other objects that block view.
1387	* Unless those objects are exits, type 66
1388	* If INS_ON_TOP is used, don't do this processing
1389	* Need to find the object that in fact blocks view, otherwise
1390	* stacking is a bit odd.
1391	*/
1392	if (!(flag & INS_ON_TOP) &&
1393	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1394	(op->face && !op->face->visibility)) {
1395	for (last=top; last != floor; last=last->below)
1396	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1397	/* Check to see if we found the object that blocks view,
1398	* and make sure we have a below pointer for it so that
1399	* we can get inserted below this one, which requires we
1400	* set top to the object below us.
1401	*/
1402	if (last && last->below && last != floor) top=last->below;
1403	}
1404	} /* If objects on this space */	1352	} /* If objects on this space */
		1353
1405	if (flag & INS_MAP_LOAD)	1354	if (flag & INS_MAP_LOAD)
1406	top = GET_MAP_TOP(op->map,op->x,op->y);	1355	top = GET_MAP_TOP (op->map, op->x, op->y);
		1356
1407	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;	1357	if (flag & INS_ABOVE_FLOOR_ONLY)
		1358	top = floor;
1408		1359
1409	/* Top is the object that our object (op) is going to get inserted above.	1360	/* Top is the object that our object (op) is going to get inserted above.
1410	*/	1361	*/
1411		1362
1412	/* First object on this space */	1363	/* First object on this space */
1413	if (!top) {	1364	if (!top)
		1365	{
1414	op->above = GET_MAP_OB(op->map, op->x, op->y);	1366	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1367
		1368	if (op->above)
1415	if (op->above) op->above->below = op;	1369	op->above->below = op;
		1370
1416	op->below = NULL;	1371	op->below = 0;
1417	SET_MAP_OB(op->map, op->x, op->y, op);	1372	op->ms ().bot = op;
		1373	}
		1374	else
1418	} else { /* get inserted into the stack above top */	1375	{ /* get inserted into the stack above top */
1419	op->above = top->above;	1376	op->above = top->above;
		1377
		1378	if (op->above)
1420	if (op->above) op->above->below = op;	1379	op->above->below = op;
		1380
1421	op->below = top;	1381	op->below = top;
1422	top->above = op;	1382	top->above = op;
1423	}	1383	}
		1384
1424	if (op->above==NULL)	1385	if (!op->above)
1425	SET_MAP_TOP(op->map,op->x, op->y, op);	1386	op->ms ().top = op;
1426	} /* else not INS_BELOW_ORIGINATOR */	1387	} /* else not INS_BELOW_ORIGINATOR */
1427		1388
1428	if(op->type==PLAYER)	1389	if (op->type == PLAYER)
		1390	{
1429	op->contr->do_los=1;	1391	op->contr->do_los = 1;
		1392	++op->map->players;
		1393	op->map->touch ();
		1394	}
1430		1395
		1396	op->map->dirty = true;
		1397
1431	/* If we have a floor, we know the player, if any, will be above	1398	/* If we have a floor, we know the player, if any, will be above
1432	* it, so save a few ticks and start from there.	1399	* it, so save a few ticks and start from there.
1433	*/	1400	*/
1434	if (!(flag & INS_MAP_LOAD))	1401	if (!(flag & INS_MAP_LOAD))
1435	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1402	if (object *pl = op->ms ().player ())
1436	if (tmp->type == PLAYER)	1403	if (pl->contr->ns)
1437	tmp->contr->socket.update_look=1;	1404	pl->contr->ns->floorbox_update ();
1438	}
1439		1405
1440	/* If this object glows, it may affect lighting conditions that are	1406	/* If this object glows, it may affect lighting conditions that are
1441	* visible to others on this map. But update_all_los is really	1407	* visible to others on this map. But update_all_los is really
1442	* an inefficient way to do this, as it means los for all players	1408	* an inefficient way to do this, as it means los for all players
1443	* on the map will get recalculated. The players could very well	1409	* on the map will get recalculated. The players could very well
1444	* be far away from this change and not affected in any way -	1410	* be far away from this change and not affected in any way -
1445	* this should get redone to only look for players within range,	1411	* this should get redone to only look for players within range,
1446	* or just updating the P_NEED_UPDATE for spaces within this area	1412	* or just updating the P_UPTODATE for spaces within this area
1447	* of effect may be sufficient.	1413	* of effect may be sufficient.
1448	*/	1414	*/
1449	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1415	if (op->map->darkness && (op->glow_radius != 0))
1450	update_all_los(op->map, op->x, op->y);	1416	update_all_los (op->map, op->x, op->y);
1451		1417
1452
1453	/* updates flags (blocked, alive, no magic, etc) for this map space */	1418	/* updates flags (blocked, alive, no magic, etc) for this map space */
1454	update_object(op,UP_OBJ_INSERT);	1419	update_object (op, UP_OBJ_INSERT);
1455		1420
		1421	INVOKE_OBJECT (INSERT, op);
1456		1422
1457	/* Don't know if moving this to the end will break anything. However,	1423	/* Don't know if moving this to the end will break anything. However,
1458	* we want to have update_look set above before calling this.	1424	* we want to have floorbox_update called before calling this.
1459	*	1425	*
1460	* check_move_on() must be after this because code called from	1426	* check_move_on() must be after this because code called from
1461	* check_move_on() depends on correct map flags (so functions like	1427	* check_move_on() depends on correct map flags (so functions like
1462	* blocked() and wall() work properly), and these flags are updated by	1428	* blocked() and wall() work properly), and these flags are updated by
1463	* update_object().	1429	* update_object().
1464	*/	1430	*/
1465		1431
1466	/* if this is not the head or flag has been passed, don't check walk on status */	1432	/* if this is not the head or flag has been passed, don't check walk on status */
1467
1468	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1433	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1434	{
1469	if (check_move_on(op, originator))	1435	if (check_move_on (op, originator))
1470	return NULL;	1436	return 0;
1471		1437
1472	/* If we are a multi part object, lets work our way through the check	1438	/* If we are a multi part object, lets work our way through the check
1473	* walk on's.	1439	* walk on's.
1474	*/	1440	*/
1475	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1441	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1476	if (check_move_on (tmp, originator))	1442	if (check_move_on (tmp, originator))
1477	return NULL;	1443	return 0;
1478	}	1444	}
		1445
1479	return op;	1446	return op;
1480	}	1447	}
1481		1448
1482	/* this function inserts an object in the map, but if it	1449	/* this function inserts an object in the map, but if it
1483	* finds an object of its own type, it'll remove that one first.	1450	* finds an object of its own type, it'll remove that one first.
1484	* op is the object to insert it under: supplies x and the map.	1451	* op is the object to insert it under: supplies x and the map.
1485	*/	1452	*/
		1453	void
1486	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1454	replace_insert_ob_in_map (const char *arch_string, object *op)
1487	object *tmp;	1455	{
1488	object *tmp1;	1456	object *tmp, *tmp1;
1489		1457
1490	/* first search for itself and remove any old instances */	1458	/* first search for itself and remove any old instances */
1491		1459
1492	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1460	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1493	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1461	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1494	remove_ob(tmp);	1462	tmp->destroy ();
1495	free_object(tmp);
1496	}
1497	}
1498		1463
1499	tmp1=arch_to_object(find_archetype(arch_string));	1464	tmp1 = arch_to_object (archetype::find (arch_string));
1500		1465
1501		1466	tmp1->x = op->x;
1502	tmp1->x = op->x; tmp1->y = op->y;	1467	tmp1->y = op->y;
1503	insert_ob_in_map(tmp1,op->map,op,0);	1468	insert_ob_in_map (tmp1, op->map, op, 0);
1504	}	1469	}
		1470
		1471	object *
		1472	object::insert_at (object *where, object *originator, int flags)
		1473	{
		1474	where->map->insert (this, where->x, where->y, originator, flags);
		1475	}
1505		1476
1506	/*	1477	/*
1507	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1478	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1508	* is returned contains nr objects, and the remaining parts contains	1479	* is returned contains nr objects, and the remaining parts contains
1509	* the rest (or is removed and freed if that number is 0).	1480	* the rest (or is removed and freed if that number is 0).
1510	* On failure, NULL is returned, and the reason put into the	1481	* On failure, NULL is returned, and the reason put into the
1511	* global static errmsg array.	1482	* global static errmsg array.
1512	*/	1483	*/
1513		1484	object *
1514	object *get_split_ob(object *orig_ob, uint32 nr) {	1485	get_split_ob (object *orig_ob, uint32 nr)
		1486	{
1515	object *newob;	1487	object *newob;
1516	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1488	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1517		1489
1518	if(orig_ob->nrof<nr) {	1490	if (orig_ob->nrof < nr)
1519	sprintf(errmsg,"There are only %d %ss.",	1491	{
1520	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1492	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1521	return NULL;	1493	return NULL;
1522	}	1494	}
		1495
1523	newob = object_create_clone(orig_ob);	1496	newob = object_create_clone (orig_ob);
		1497
1524	if((orig_ob->nrof-=nr)<1) {	1498	if ((orig_ob->nrof -= nr) < 1)
1525	if ( ! is_removed)	1499	orig_ob->destroy (1);
1526	remove_ob(orig_ob);
1527	free_object2(orig_ob, 1);
1528	}
1529	else if ( ! is_removed) {	1500	else if (!is_removed)
		1501	{
1530	if(orig_ob->env!=NULL)	1502	if (orig_ob->env != NULL)
1531	sub_weight (orig_ob->env,orig_ob->weight*nr);	1503	sub_weight (orig_ob->env, orig_ob->weight * nr);
1532	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1504	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1505	{
1533	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1506	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1534	LOG(llevDebug,
1535	"Error, Tried to split object whose map is not in memory.\n");	1507	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1536	return NULL;	1508	return NULL;
1537	}	1509	}
1538	}	1510	}
		1511
1539	newob->nrof=nr;	1512	newob->nrof = nr;
1540		1513
1541	return newob;	1514	return newob;
1542	}	1515	}
1543		1516
1544	/*	1517	/*
1545	* decrease_ob_nr(object, number) decreases a specified number from	1518	* decrease_ob_nr(object, number) decreases a specified number from
1546	* the amount of an object. If the amount reaches 0, the object	1519	* the amount of an object. If the amount reaches 0, the object
1547	* is subsequently removed and freed.	1520	* is subsequently removed and freed.
1548	*	1521	*
1549	* Return value: 'op' if something is left, NULL if the amount reached 0	1522	* Return value: 'op' if something is left, NULL if the amount reached 0
1550	*/	1523	*/
1551		1524
		1525	object *
1552	object *decrease_ob_nr (object *op, uint32 i)	1526	decrease_ob_nr (object *op, uint32 i)
1553	{	1527	{
1554	object *tmp;	1528	object *tmp;
1555	player *pl;
1556		1529
1557	if (i == 0) /* objects with op->nrof require this check */	1530	if (i == 0) /* objects with op->nrof require this check */
1558	return op;	1531	return op;
1559		1532
1560	if (i > op->nrof)	1533	if (i > op->nrof)
1561	i = op->nrof;	1534	i = op->nrof;
1562		1535
1563	if (QUERY_FLAG (op, FLAG_REMOVED))	1536	if (QUERY_FLAG (op, FLAG_REMOVED))
		1537	op->nrof -= i;
		1538	else if (op->env)
		1539	{
		1540	/* is this object in the players inventory, or sub container
		1541	* therein?
		1542	*/
		1543	tmp = op->in_player ();
		1544	/* nope. Is this a container the player has opened?
		1545	* If so, set tmp to that player.
		1546	* IMO, searching through all the players will mostly
		1547	* likely be quicker than following op->env to the map,
		1548	* and then searching the map for a player.
		1549	*/
		1550	if (!tmp)
		1551	for_all_players (pl)
		1552	if (pl->ob->container == op->env)
		1553	{
		1554	tmp = pl->ob;
		1555	break;
		1556	}
		1557
		1558	if (i < op->nrof)
		1559	{
		1560	sub_weight (op->env, op->weight * i);
		1561	op->nrof -= i;
		1562	if (tmp)
		1563	esrv_send_item (tmp, op);
		1564	}
		1565	else
		1566	{
		1567	op->remove ();
		1568	op->nrof = 0;
		1569	if (tmp)
		1570	esrv_del_item (tmp->contr, op->count);
		1571	}
1564	{	1572	}
		1573	else
		1574	{
		1575	object *above = op->above;
		1576
		1577	if (i < op->nrof)
1565	op->nrof -= i;	1578	op->nrof -= i;
1566	}	1579	else
1567	else if (op->env != NULL)
1568	{
1569	/* is this object in the players inventory, or sub container
1570	* therein?
1571	*/
1572	tmp = is_player_inv (op->env);
1573	/* nope. Is this a container the player has opened?
1574	* If so, set tmp to that player.
1575	* IMO, searching through all the players will mostly
1576	* likely be quicker than following op->env to the map,
1577	* and then searching the map for a player.
1578	*/
1579	if (!tmp) {
1580	for (pl=first_player; pl; pl=pl->next)
1581	if (pl->ob->container == op->env) break;
1582	if (pl) tmp=pl->ob;
1583	else tmp=NULL;
1584	}	1580	{
1585
1586	if (i < op->nrof) {
1587	sub_weight (op->env, op->weight * i);
1588	op->nrof -= i;
1589	if (tmp) {
1590	esrv_send_item(tmp, op);
1591	}
1592	} else {
1593	remove_ob (op);	1581	op->remove ();
1594	op->nrof = 0;	1582	op->nrof = 0;
1595	if (tmp) {
1596	esrv_del_item(tmp->contr, op->count);
1597	}	1583	}
1598	}
1599	}
1600	else
1601	{
1602	object *above = op->above;
1603		1584
1604	if (i < op->nrof) {
1605	op->nrof -= i;
1606	} else {
1607	remove_ob (op);
1608	op->nrof = 0;
1609	}
1610	/* Since we just removed op, op->above is null */	1585	/* Since we just removed op, op->above is null */
1611	for (tmp = above; tmp != NULL; tmp = tmp->above)	1586	for (tmp = above; tmp; tmp = tmp->above)
1612	if (tmp->type == PLAYER) {	1587	if (tmp->type == PLAYER)
		1588	{
1613	if (op->nrof)	1589	if (op->nrof)
1614	esrv_send_item(tmp, op);	1590	esrv_send_item (tmp, op);
1615	else	1591	else
1616	esrv_del_item(tmp->contr, op->count);	1592	esrv_del_item (tmp->contr, op->count);
1617	}	1593	}
1618	}	1594	}
1619		1595
1620	if (op->nrof) {	1596	if (op->nrof)
1621	return op;	1597	return op;
1622	} else {	1598	else
1623	free_object (op);	1599	{
		1600	op->destroy ();
1624	return NULL;	1601	return 0;
1625	}	1602	}
1626	}	1603	}
1627		1604
1628	/*	1605	/*
1629	* add_weight(object, weight) adds the specified weight to an object,	1606	* add_weight(object, weight) adds the specified weight to an object,
1630	* and also updates how much the environment(s) is/are carrying.	1607	* and also updates how much the environment(s) is/are carrying.
1631	*/	1608	*/
1632		1609
		1610	void
1633	void add_weight (object *op, signed long weight) {	1611	add_weight (object *op, signed long weight)
		1612	{
1634	while (op!=NULL) {	1613	while (op != NULL)
		1614	{
1635	if (op->type == CONTAINER) {	1615	if (op->type == CONTAINER)
1636	weight=(signed long)(weight*(100-op->stats.Str)/100);	1616	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1637	}	1617
1638	op->carrying+=weight;	1618	op->carrying += weight;
1639	op=op->env;	1619	op = op->env;
1640	}	1620	}
1641	}	1621	}
1642		1622
		1623	object *
		1624	insert_ob_in_ob (object *op, object *where)
		1625	{
		1626	if (!where)
		1627	{
		1628	char *dump = dump_object (op);
		1629	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1630	free (dump);
		1631	return op;
		1632	}
		1633
		1634	if (where->head)
		1635	{
		1636	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1637	where = where->head;
		1638	}
		1639
		1640	return where->insert (op);
		1641	}
		1642
1643	/*	1643	/*
1644	* insert_ob_in_ob(op,environment):	1644	* env->insert (op)
1645	* This function inserts the object op in the linked list	1645	* This function inserts the object op in the linked list
1646	* inside the object environment.	1646	* inside the object environment.
1647	*	1647	*
1648	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1649	* the inventory at the last position or next to other objects of the same
1650	* type.
1651	* Frank: Now sorted by type, archetype and magic!
1652	*
1653	* The function returns now pointer to inserted item, and return value can	1648	* The function returns now pointer to inserted item, and return value can
1654	* be != op, if items are merged. -Tero	1649	* be != op, if items are merged. -Tero
1655	*/	1650	*/
1656		1651
1657	object *insert_ob_in_ob(object *op,object *where) {	1652	object *
		1653	object::insert (object *op)
		1654	{
1658	object *tmp, *otmp;	1655	object *tmp, *otmp;
1659		1656
1660	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1657	if (!QUERY_FLAG (op, FLAG_REMOVED))
1661	dump_object(op);	1658	op->remove ();
1662	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1659
1663	return op;
1664	}
1665	if(where==NULL) {
1666	dump_object(op);
1667	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1668	return op;
1669	}
1670	if (where->head) {
1671	LOG(llevDebug,
1672	"Warning: Tried to insert object wrong part of multipart object.\n");
1673	where = where->head;
1674	}
1675	if (op->more) {	1660	if (op->more)
		1661	{
1676	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1662	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1677	&op->name, op->count);
1678	return op;	1663	return op;
1679	}	1664	}
		1665
1680	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1666	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1681	CLEAR_FLAG(op, FLAG_REMOVED);	1667	CLEAR_FLAG (op, FLAG_REMOVED);
1682	if(op->nrof) {	1668	if (op->nrof)
		1669	{
1683	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1670	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1684	if ( CAN_MERGE(tmp,op) ) {	1671	if (object::can_merge (tmp, op))
		1672	{
1685	/* return the original object and remove inserted object	1673	/* return the original object and remove inserted object
1686	(client needs the original object) */	1674	(client needs the original object) */
1687	tmp->nrof += op->nrof;	1675	tmp->nrof += op->nrof;
1688	/* Weight handling gets pretty funky. Since we are adding to	1676	/* Weight handling gets pretty funky. Since we are adding to
1689	* tmp->nrof, we need to increase the weight.	1677	* tmp->nrof, we need to increase the weight.
1690	*/	1678	*/
1691	add_weight (where, op->weight*op->nrof);	1679	add_weight (this, op->weight * op->nrof);
1692	SET_FLAG(op, FLAG_REMOVED);	1680	SET_FLAG (op, FLAG_REMOVED);
1693	free_object(op); /* free the inserted object */	1681	op->destroy (); /* free the inserted object */
1694	op = tmp;	1682	op = tmp;
1695	remove_ob (op); /* and fix old object's links */	1683	op->remove (); /* and fix old object's links */
1696	CLEAR_FLAG(op, FLAG_REMOVED);	1684	CLEAR_FLAG (op, FLAG_REMOVED);
1697	break;	1685	break;
1698	}	1686	}
1699		1687
1700	/* I assume combined objects have no inventory	1688	/* I assume combined objects have no inventory
1701	* We add the weight - this object could have just been removed	1689	* We add the weight - this object could have just been removed
1702	* (if it was possible to merge). calling remove_ob will subtract	1690	* (if it was possible to merge). calling remove_ob will subtract
1703	* the weight, so we need to add it in again, since we actually do	1691	* the weight, so we need to add it in again, since we actually do
1704	* the linking below	1692	* the linking below
1705	*/	1693	*/
1706	add_weight (where, op->weight*op->nrof);	1694	add_weight (this, op->weight * op->nrof);
		1695	}
1707	} else	1696	else
1708	add_weight (where, (op->weight+op->carrying));	1697	add_weight (this, (op->weight + op->carrying));
1709		1698
1710	otmp=is_player_inv(where);	1699	otmp = this->in_player ();
1711	if (otmp&&otmp->contr!=NULL) {	1700	if (otmp && otmp->contr)
1712	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1701	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1713	fix_player(otmp);	1702	otmp->update_stats ();
1714	}
1715		1703
1716	op->map=NULL;	1704	op->map = 0;
1717	op->env=where;	1705	op->env = this;
1718	op->above=NULL;	1706	op->above = 0;
1719	op->below=NULL;	1707	op->below = 0;
1720	op->x=0,op->y=0;	1708	op->x = 0, op->y = 0;
1721		1709
1722	/* reset the light list and los of the players on the map */	1710	/* reset the light list and los of the players on the map */
1723	if((op->glow_radius!=0)&&where->map)	1711	if ((op->glow_radius != 0) && map)
1724	{	1712	{
1725	#ifdef DEBUG_LIGHTS	1713	#ifdef DEBUG_LIGHTS
1726	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1714	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1727	op->name);
1728	#endif /* DEBUG_LIGHTS */	1715	#endif /* DEBUG_LIGHTS */
1729	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1716	if (map->darkness)
		1717	update_all_los (map, x, y);
1730	}	1718	}
1731		1719
1732	/* Client has no idea of ordering so lets not bother ordering it here.	1720	/* Client has no idea of ordering so lets not bother ordering it here.
1733	* It sure simplifies this function...	1721	* It sure simplifies this function...
1734	*/	1722	*/
1735	if (where->inv==NULL)	1723	if (!inv)
1736	where->inv=op;	1724	inv = op;
1737	else {	1725	else
		1726	{
1738	op->below = where->inv;	1727	op->below = inv;
1739	op->below->above = op;	1728	op->below->above = op;
1740	where->inv = op;	1729	inv = op;
1741	}	1730	}
		1731
		1732	INVOKE_OBJECT (INSERT, this);
		1733
1742	return op;	1734	return op;
1743	}	1735	}
1744		1736
1745	/*	1737	/*
1746	* Checks if any objects has a move_type that matches objects	1738	* Checks if any objects has a move_type that matches objects
…		…
1760	*	1752	*
1761	* MSW 2001-07-08: Check all objects on space, not just those below	1753	* MSW 2001-07-08: Check all objects on space, not just those below
1762	* object being inserted. insert_ob_in_map may not put new objects	1754	* object being inserted. insert_ob_in_map may not put new objects
1763	* on top.	1755	* on top.
1764	*/	1756	*/
1765		1757	int
1766	int check_move_on (object *op, object *originator)	1758	check_move_on (object *op, object *originator)
1767	{	1759	{
1768	object *tmp;	1760	object *tmp;
1769	tag_t tag;
1770	mapstruct *m=op->map;	1761	maptile *m = op->map;
1771	int x=op->x, y=op->y;	1762	int x = op->x, y = op->y;
		1763
1772	MoveType move_on, move_slow, move_block;	1764	MoveType move_on, move_slow, move_block;
1773		1765
1774	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1766	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1775	return 0;	1767	return 0;
1776		1768
1777	tag = op->count;
1778
1779	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1769	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1780	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1770	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1781	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1771	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1782		1772
1783	/* if nothing on this space will slow op down or be applied,	1773	/* if nothing on this space will slow op down or be applied,
1784	* no need to do checking below. have to make sure move_type	1774	* no need to do checking below. have to make sure move_type
1785	* is set, as lots of objects don't have it set - we treat that	1775	* is set, as lots of objects don't have it set - we treat that
1786	* as walking.	1776	* as walking.
1787	*/	1777	*/
1788	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1778	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1789	return 0;	1779	return 0;
1790		1780
1791	/* This is basically inverse logic of that below - basically,	1781	/* This is basically inverse logic of that below - basically,
1792	* if the object can avoid the move on or slow move, they do so,	1782	* if the object can avoid the move on or slow move, they do so,
1793	* but can't do it if the alternate movement they are using is	1783	* but can't do it if the alternate movement they are using is
1794	* blocked. Logic on this seems confusing, but does seem correct.	1784	* blocked. Logic on this seems confusing, but does seem correct.
1795	*/	1785	*/
1796	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1786	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1797	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1787	return 0;
1798		1788
1799	/* The objects have to be checked from top to bottom.	1789	/* The objects have to be checked from top to bottom.
1800	* Hence, we first go to the top:	1790	* Hence, we first go to the top:
1801	*/	1791	*/
1802		1792
1803	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1793	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1804	tmp->above!=NULL; tmp=tmp->above) {	1794	{
1805	/* Trim the search when we find the first other spell effect	1795	/* Trim the search when we find the first other spell effect
1806	* this helps performance so that if a space has 50 spell objects,	1796	* this helps performance so that if a space has 50 spell objects,
1807	* we don't need to check all of them.	1797	* we don't need to check all of them.
1808	*/	1798	*/
1809	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1799	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1800	break;
		1801	}
		1802
		1803	for (; tmp; tmp = tmp->below)
1810	}	1804	{
1811	for(;tmp!=NULL; tmp=tmp->below) {	1805	if (tmp == op)
1812	if (tmp == op) continue; /* Can't apply yourself */	1806	continue; /* Can't apply yourself */
1813		1807
1814	/* Check to see if one of the movement types should be slowed down.	1808	/* Check to see if one of the movement types should be slowed down.
1815	* Second check makes sure that the movement types not being slowed	1809	* Second check makes sure that the movement types not being slowed
1816	* (~slow_move) is not blocked on this space - just because the	1810	* (~slow_move) is not blocked on this space - just because the
1817	* space doesn't slow down swimming (for example), if you can't actually	1811	* space doesn't slow down swimming (for example), if you can't actually
1818	* swim on that space, can't use it to avoid the penalty.	1812	* swim on that space, can't use it to avoid the penalty.
1819	*/	1813	*/
1820	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1814	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1815	{
1821	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1816	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1822	((op->move_type & tmp->move_slow) &&
1823	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1817	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1818	{
1824		1819
1825	float diff;	1820	float
1826
1827	diff = tmp->move_slow_penalty*FABS(op->speed);	1821	diff = tmp->move_slow_penalty * FABS (op->speed);
		1822
1828	if (op->type == PLAYER) {	1823	if (op->type == PLAYER)
1829	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1824	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1830	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1825	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1831	diff /= 4.0;	1826	diff /= 4.0;
1832	}	1827
1833	}
1834	op->speed_left -= diff;	1828	op->speed_left -= diff;
1835	}	1829	}
1836	}	1830	}
1837		1831
1838	/* Basically same logic as above, except now for actual apply. */	1832	/* Basically same logic as above, except now for actual apply. */
1839	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1833	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1840	((op->move_type & tmp->move_on) &&
1841	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1834	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1842		1835	{
1843	move_apply(tmp, op, originator);	1836	move_apply (tmp, op, originator);
		1837
1844	if (was_destroyed (op, tag))	1838	if (op->destroyed ())
1845	return 1;	1839	return 1;
1846		1840
1847	/* what the person/creature stepped onto has moved the object	1841	/* what the person/creature stepped onto has moved the object
1848	* someplace new. Don't process any further - if we did,	1842	* someplace new. Don't process any further - if we did,
1849	* have a feeling strange problems would result.	1843	* have a feeling strange problems would result.
1850	*/	1844	*/
1851	if (op->map != m || op->x != x || op->y != y) return 0;	1845	if (op->map != m || op->x != x || op->y != y)
		1846	return 0;
1852	}	1847	}
1853	}	1848	}
		1849
1854	return 0;	1850	return 0;
1855	}	1851	}
1856		1852
1857	/*	1853	/*
1858	* present_arch(arch, map, x, y) searches for any objects with	1854	* present_arch(arch, map, x, y) searches for any objects with
1859	* a matching archetype at the given map and coordinates.	1855	* a matching archetype at the given map and coordinates.
1860	* The first matching object is returned, or NULL if none.	1856	* The first matching object is returned, or NULL if none.
1861	*/	1857	*/
1862		1858	object *
1863	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1859	present_arch (const archetype *at, maptile *m, int x, int y)
1864	object *tmp;	1860	{
1865	if(m==NULL || out_of_map(m,x,y)) {	1861	if (!m || out_of_map (m, x, y))
		1862	{
1866	LOG(llevError,"Present_arch called outside map.\n");	1863	LOG (llevError, "Present_arch called outside map.\n");
1867	return NULL;	1864	return NULL;
1868	}	1865	}
1869	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1866
		1867	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1870	if(tmp->arch == at)	1868	if (tmp->arch == at)
1871	return tmp;	1869	return tmp;
		1870
1872	return NULL;	1871	return NULL;
1873	}	1872	}
1874		1873
1875	/*	1874	/*
1876	* present(type, map, x, y) searches for any objects with	1875	* present(type, map, x, y) searches for any objects with
1877	* a matching type variable at the given map and coordinates.	1876	* a matching type variable at the given map and coordinates.
1878	* The first matching object is returned, or NULL if none.	1877	* The first matching object is returned, or NULL if none.
1879	*/	1878	*/
1880		1879	object *
1881	object *present(unsigned char type,mapstruct *m, int x,int y) {	1880	present (unsigned char type, maptile *m, int x, int y)
1882	object *tmp;	1881	{
1883	if(out_of_map(m,x,y)) {	1882	if (out_of_map (m, x, y))
		1883	{
1884	LOG(llevError,"Present called outside map.\n");	1884	LOG (llevError, "Present called outside map.\n");
1885	return NULL;	1885	return NULL;
1886	}	1886	}
1887	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1887
		1888	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1888	if(tmp->type==type)	1889	if (tmp->type == type)
1889	return tmp;	1890	return tmp;
		1891
1890	return NULL;	1892	return NULL;
1891	}	1893	}
1892		1894
1893	/*	1895	/*
1894	* present_in_ob(type, object) searches for any objects with	1896	* present_in_ob(type, object) searches for any objects with
1895	* a matching type variable in the inventory of the given object.	1897	* a matching type variable in the inventory of the given object.
1896	* The first matching object is returned, or NULL if none.	1898	* The first matching object is returned, or NULL if none.
1897	*/	1899	*/
1898		1900	object *
1899	object *present_in_ob(unsigned char type, const object *op) {	1901	present_in_ob (unsigned char type, const object *op)
1900	object *tmp;	1902	{
1901	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1903	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1902	if(tmp->type==type)	1904	if (tmp->type == type)
1903	return tmp;	1905	return tmp;
		1906
1904	return NULL;	1907	return NULL;
1905	}	1908	}
1906		1909
1907	/*	1910	/*
1908	* present_in_ob (type, str, object) searches for any objects with	1911	* present_in_ob (type, str, object) searches for any objects with
…		…
1916	* str is the string to match against. Note that we match against	1919	* str is the string to match against. Note that we match against
1917	* the object name, not the archetype name. this is so that the	1920	* the object name, not the archetype name. this is so that the
1918	* spell code can use one object type (force), but change it's name	1921	* spell code can use one object type (force), but change it's name
1919	* to be unique.	1922	* to be unique.
1920	*/	1923	*/
1921		1924	object *
1922	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1925	present_in_ob_by_name (int type, const char *str, const object *op)
1923	object *tmp;	1926	{
1924
1925	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1927	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1926	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1928	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1927	return tmp;	1929	return tmp;
1928	}	1930
1929	return NULL;	1931	return 0;
1930	}	1932	}
1931		1933
1932	/*	1934	/*
1933	* present_arch_in_ob(archetype, object) searches for any objects with	1935	* present_arch_in_ob(archetype, object) searches for any objects with
1934	* a matching archetype in the inventory of the given object.	1936	* a matching archetype in the inventory of the given object.
1935	* The first matching object is returned, or NULL if none.	1937	* The first matching object is returned, or NULL if none.
1936	*/	1938	*/
1937		1939	object *
1938	object *present_arch_in_ob(const archetype *at, const object *op) {	1940	present_arch_in_ob (const archetype *at, const object *op)
1939	object *tmp;	1941	{
1940	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1942	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1941	if( tmp->arch == at)	1943	if (tmp->arch == at)
1942	return tmp;	1944	return tmp;
		1945
1943	return NULL;	1946	return NULL;
1944	}	1947	}
1945		1948
1946	/*	1949	/*
1947	* activate recursively a flag on an object inventory	1950	* activate recursively a flag on an object inventory
1948	*/	1951	*/
		1952	void
1949	void flag_inv(object*op, int flag){	1953	flag_inv (object *op, int flag)
1950	object *tmp;	1954	{
1951	if(op->inv)	1955	if (op->inv)
1952	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1956	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1957	{
1953	SET_FLAG(tmp, flag);	1958	SET_FLAG (tmp, flag);
1954	flag_inv(tmp,flag);	1959	flag_inv (tmp, flag);
1955	}	1960	}
		1961	}
		1962
1956	}/*	1963	/*
1957	* desactivate recursively a flag on an object inventory	1964	* deactivate recursively a flag on an object inventory
1958	*/	1965	*/
		1966	void
1959	void unflag_inv(object*op, int flag){	1967	unflag_inv (object *op, int flag)
1960	object *tmp;	1968	{
1961	if(op->inv)	1969	if (op->inv)
1962	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1970	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1971	{
1963	CLEAR_FLAG(tmp, flag);	1972	CLEAR_FLAG (tmp, flag);
1964	unflag_inv(tmp,flag);	1973	unflag_inv (tmp, flag);
1965	}	1974	}
1966	}	1975	}
1967		1976
1968	/*	1977	/*
1969	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1978	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1970	* all it's inventory (recursively).	1979	* all it's inventory (recursively).
1971	* If checksums are used, a player will get set_cheat called for	1980	* If checksums are used, a player will get set_cheat called for
1972	* him/her-self and all object carried by a call to this function.	1981	* him/her-self and all object carried by a call to this function.
1973	*/	1982	*/
1974		1983	void
1975	void set_cheat(object *op) {	1984	set_cheat (object *op)
		1985	{
1976	SET_FLAG(op, FLAG_WAS_WIZ);	1986	SET_FLAG (op, FLAG_WAS_WIZ);
1977	flag_inv(op, FLAG_WAS_WIZ);	1987	flag_inv (op, FLAG_WAS_WIZ);
1978	}	1988	}
1979		1989
1980	/*	1990	/*
1981	* find_free_spot(object, map, x, y, start, stop) will search for	1991	* find_free_spot(object, map, x, y, start, stop) will search for
1982	* a spot at the given map and coordinates which will be able to contain	1992	* a spot at the given map and coordinates which will be able to contain
…		…
1996	* because arch_blocked (now ob_blocked) needs to know the movement type	2006	* because arch_blocked (now ob_blocked) needs to know the movement type
1997	* to know if the space in question will block the object. We can't use	2007	* to know if the space in question will block the object. We can't use
1998	* the archetype because that isn't correct if the monster has been	2008	* the archetype because that isn't correct if the monster has been
1999	* customized, changed states, etc.	2009	* customized, changed states, etc.
2000	*/	2010	*/
2001		2011	int
2002	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2012	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2013	{
2003	int i,index=0, flag;	2014	int index = 0, flag;
2004	static int altern[SIZEOFFREE];	2015	int altern[SIZEOFFREE];
2005		2016
2006	for(i=start;i<stop;i++) {	2017	for (int i = start; i < stop; i++)
		2018	{
2007	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2019	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2008	if(!flag)	2020	if (!flag)
2009	altern[index++]=i;	2021	altern [index++] = i;
2010		2022
2011	/* Basically, if we find a wall on a space, we cut down the search size.	2023	/* Basically, if we find a wall on a space, we cut down the search size.
2012	* In this way, we won't return spaces that are on another side of a wall.	2024	* In this way, we won't return spaces that are on another side of a wall.
2013	* This mostly work, but it cuts down the search size in all directions -	2025	* This mostly work, but it cuts down the search size in all directions -
2014	* if the space being examined only has a wall to the north and empty	2026	* if the space being examined only has a wall to the north and empty
2015	* spaces in all the other directions, this will reduce the search space	2027	* spaces in all the other directions, this will reduce the search space
2016	* to only the spaces immediately surrounding the target area, and	2028	* to only the spaces immediately surrounding the target area, and
2017	* won't look 2 spaces south of the target space.	2029	* won't look 2 spaces south of the target space.
2018	*/	2030	*/
2019	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2031	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2020	stop=maxfree[i];	2032	stop = maxfree[i];
2021	}	2033	}
2022	if(!index) return -1;	2034
		2035	if (!index)
		2036	return -1;
		2037
2023	return altern[RANDOM()%index];	2038	return altern[RANDOM () % index];
2024	}	2039	}
2025		2040
2026	/*	2041	/*
2027	* find_first_free_spot(archetype, mapstruct, x, y) works like	2042	* find_first_free_spot(archetype, maptile, x, y) works like
2028	* find_free_spot(), but it will search max number of squares.	2043	* find_free_spot(), but it will search max number of squares.
2029	* But it will return the first available spot, not a random choice.	2044	* But it will return the first available spot, not a random choice.
2030	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2045	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2031	*/	2046	*/
2032		2047	int
2033	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2048	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2034	int i;	2049	{
2035	for(i=0;i<SIZEOFFREE;i++) {	2050	for (int i = 0; i < SIZEOFFREE; i++)
2036	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2051	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2037	return i;	2052	return i;
2038	}	2053
2039	return -1;	2054	return -1;
2040	}	2055	}
2041		2056
2042	/*	2057	/*
2043	* The function permute(arr, begin, end) randomly reorders the array	2058	* The function permute(arr, begin, end) randomly reorders the array
2044	* arr[begin..end-1].	2059	* arr[begin..end-1].
		2060	* now uses a fisher-yates shuffle, old permute was broken
2045	*/	2061	*/
		2062	static void
2046	static void permute(int *arr, int begin, int end)	2063	permute (int *arr, int begin, int end)
2047	{	2064	{
2048	int i, j, tmp, len;	2065	arr += begin;
		2066	end -= begin;
2049		2067
2050	len = end-begin;	2068	while (--end)
2051	for(i = begin; i < end; i++)	2069	swap (arr [end], arr [RANDOM () % (end + 1)]);
2052	{
2053	j = begin+RANDOM()%len;
2054
2055	tmp = arr[i];
2056	arr[i] = arr[j];
2057	arr[j] = tmp;
2058	}
2059	}	2070	}
2060		2071
2061	/* new function to make monster searching more efficient, and effective!	2072	/* new function to make monster searching more efficient, and effective!
2062	* This basically returns a randomized array (in the passed pointer) of	2073	* This basically returns a randomized array (in the passed pointer) of
2063	* the spaces to find monsters. In this way, it won't always look for	2074	* the spaces to find monsters. In this way, it won't always look for
2064	* monsters to the north first. However, the size of the array passed	2075	* monsters to the north first. However, the size of the array passed
2065	* covers all the spaces, so within that size, all the spaces within	2076	* covers all the spaces, so within that size, all the spaces within
2066	* the 3x3 area will be searched, just not in a predictable order.	2077	* the 3x3 area will be searched, just not in a predictable order.
2067	*/	2078	*/
		2079	void
2068	void get_search_arr(int *search_arr)	2080	get_search_arr (int *search_arr)
2069	{	2081	{
2070	int i;	2082	int i;
2071		2083
2072	for(i = 0; i < SIZEOFFREE; i++)	2084	for (i = 0; i < SIZEOFFREE; i++)
2073	{
2074	search_arr[i] = i;	2085	search_arr[i] = i;
2075	}
2076		2086
2077	permute(search_arr, 1, SIZEOFFREE1+1);	2087	permute (search_arr, 1, SIZEOFFREE1 + 1);
2078	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2088	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2079	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2089	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2080	}	2090	}
2081		2091
2082	/*	2092	/*
2083	* find_dir(map, x, y, exclude) will search some close squares in the	2093	* find_dir(map, x, y, exclude) will search some close squares in the
2084	* given map at the given coordinates for live objects.	2094	* given map at the given coordinates for live objects.
…		…
2089	* Perhaps incorrectly, but I'm making the assumption that exclude	2099	* Perhaps incorrectly, but I'm making the assumption that exclude
2090	* is actually want is going to try and move there. We need this info	2100	* is actually want is going to try and move there. We need this info
2091	* because we have to know what movement the thing looking to move	2101	* because we have to know what movement the thing looking to move
2092	* there is capable of.	2102	* there is capable of.
2093	*/	2103	*/
2094		2104	int
2095	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2105	find_dir (maptile *m, int x, int y, object *exclude)
		2106	{
2096	int i,max=SIZEOFFREE, mflags;	2107	int i, max = SIZEOFFREE, mflags;
		2108
2097	sint16 nx, ny;	2109	sint16 nx, ny;
2098	object *tmp;	2110	object *tmp;
2099	mapstruct *mp;	2111	maptile *mp;
		2112
2100	MoveType blocked, move_type;	2113	MoveType blocked, move_type;
2101		2114
2102	if (exclude && exclude->head) {	2115	if (exclude && exclude->head)
		2116	{
2103	exclude = exclude->head;	2117	exclude = exclude->head;
2104	move_type = exclude->move_type;	2118	move_type = exclude->move_type;
2105	} else {	2119	}
		2120	else
		2121	{
2106	/* If we don't have anything, presume it can use all movement types. */	2122	/* If we don't have anything, presume it can use all movement types. */
2107	move_type=MOVE_ALL;	2123	move_type = MOVE_ALL;
		2124	}
		2125
		2126	for (i = 1; i < max; i++)
2108	}	2127	{
2109
2110	for(i=1;i<max;i++) {
2111	mp = m;	2128	mp = m;
2112	nx = x + freearr_x[i];	2129	nx = x + freearr_x[i];
2113	ny = y + freearr_y[i];	2130	ny = y + freearr_y[i];
2114		2131
2115	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2132	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2133
2116	if (mflags & P_OUT_OF_MAP) {	2134	if (mflags & P_OUT_OF_MAP)
		2135	max = maxfree[i];
		2136	else
		2137	{
		2138	mapspace &ms = mp->at (nx, ny);
		2139
		2140	blocked = ms.move_block;
		2141
		2142	if ((move_type & blocked) == move_type)
2117	max = maxfree[i];	2143	max = maxfree[i];
2118	} else {
2119	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2120
2121	if ((move_type & blocked) == move_type) {
2122	max=maxfree[i];
2123	} else if (mflags & P_IS_ALIVE) {	2144	else if (mflags & P_IS_ALIVE)
2124	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2145	{
		2146	for (tmp = ms.bot; tmp; tmp = tmp->above)
2125	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2147	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2126	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2148	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2127	break;	2149	break;
2128	}	2150
2129	}
2130	if(tmp) {	2151	if (tmp)
2131	return freedir[i];	2152	return freedir[i];
2132	}
2133	}	2153	}
2134	}	2154	}
2135	}	2155	}
		2156
2136	return 0;	2157	return 0;
2137	}	2158	}
2138		2159
2139	/*	2160	/*
2140	* distance(object 1, object 2) will return the square of the	2161	* distance(object 1, object 2) will return the square of the
2141	* distance between the two given objects.	2162	* distance between the two given objects.
2142	*/	2163	*/
2143		2164	int
2144	int distance(const object *ob1, const object *ob2) {	2165	distance (const object *ob1, const object *ob2)
2145	int i;	2166	{
2146	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2167	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2147	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2148	return i;
2149	}	2168	}
2150		2169
2151	/*	2170	/*
2152	* find_dir_2(delta-x,delta-y) will return a direction in which	2171	* find_dir_2(delta-x,delta-y) will return a direction in which
2153	* an object which has subtracted the x and y coordinates of another	2172	* an object which has subtracted the x and y coordinates of another
2154	* object, needs to travel toward it.	2173	* object, needs to travel toward it.
2155	*/	2174	*/
2156		2175	int
2157	int find_dir_2(int x, int y) {	2176	find_dir_2 (int x, int y)
		2177	{
2158	int q;	2178	int q;
2159		2179
2160	if(y)	2180	if (y)
2161	q=x*100/y;	2181	q = x * 100 / y;
2162	else if (x)	2182	else if (x)
2163	q= -300*x;	2183	q = -300 * x;
2164	else	2184	else
2165	return 0;	2185	return 0;
2166		2186
2167	if(y>0) {	2187	if (y > 0)
		2188	{
2168	if(q < -242)	2189	if (q < -242)
2169	return 3 ;	2190	return 3;
2170	if (q < -41)	2191	if (q < -41)
2171	return 2 ;	2192	return 2;
2172	if (q < 41)	2193	if (q < 41)
2173	return 1 ;	2194	return 1;
2174	if (q < 242)	2195	if (q < 242)
2175	return 8 ;	2196	return 8;
2176	return 7 ;	2197	return 7;
2177	}	2198	}
2178		2199
2179	if (q < -242)	2200	if (q < -242)
2180	return 7 ;	2201	return 7;
2181	if (q < -41)	2202	if (q < -41)
2182	return 6 ;	2203	return 6;
2183	if (q < 41)	2204	if (q < 41)
2184	return 5 ;	2205	return 5;
2185	if (q < 242)	2206	if (q < 242)
2186	return 4 ;	2207	return 4;
2187		2208
2188	return 3 ;	2209	return 3;
2189	}	2210	}
2190		2211
2191	/*	2212	/*
2192	* absdir(int): Returns a number between 1 and 8, which represent	2213	* absdir(int): Returns a number between 1 and 8, which represent
2193	* the "absolute" direction of a number (it actually takes care of	2214	* the "absolute" direction of a number (it actually takes care of
2194	* "overflow" in previous calculations of a direction).	2215	* "overflow" in previous calculations of a direction).
2195	*/	2216	*/
2196		2217
		2218	int
2197	int absdir(int d) {	2219	absdir (int d)
2198	while(d<1) d+=8;	2220	{
2199	while(d>8) d-=8;	2221	while (d < 1)
		2222	d += 8;
		2223
		2224	while (d > 8)
		2225	d -= 8;
		2226
2200	return d;	2227	return d;
2201	}	2228	}
2202		2229
2203	/*	2230	/*
2204	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2231	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2205	* between two directions (which are expected to be absolute (see absdir())	2232	* between two directions (which are expected to be absolute (see absdir())
2206	*/	2233	*/
2207		2234
		2235	int
2208	int dirdiff(int dir1, int dir2) {	2236	dirdiff (int dir1, int dir2)
		2237	{
2209	int d;	2238	int d;
		2239
2210	d = abs(dir1 - dir2);	2240	d = abs (dir1 - dir2);
2211	if(d>4)	2241	if (d > 4)
2212	d = 8 - d;	2242	d = 8 - d;
		2243
2213	return d;	2244	return d;
2214	}	2245	}
2215		2246
2216	/* peterm:	2247	/* peterm:
2217	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2248	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2220	* This basically means that if direction is 15, then it could either go	2251	* This basically means that if direction is 15, then it could either go
2221	* direction 4, 14, or 16 to get back to where we are.	2252	* direction 4, 14, or 16 to get back to where we are.
2222	* Moved from spell_util.c to object.c with the other related direction	2253	* Moved from spell_util.c to object.c with the other related direction
2223	* functions.	2254	* functions.
2224	*/	2255	*/
2225
2226	int reduction_dir[SIZEOFFREE][3] = {	2256	int reduction_dir[SIZEOFFREE][3] = {
2227	{0,0,0}, /* 0 */	2257	{0, 0, 0}, /* 0 */
2228	{0,0,0}, /* 1 */	2258	{0, 0, 0}, /* 1 */
2229	{0,0,0}, /* 2 */	2259	{0, 0, 0}, /* 2 */
2230	{0,0,0}, /* 3 */	2260	{0, 0, 0}, /* 3 */
2231	{0,0,0}, /* 4 */	2261	{0, 0, 0}, /* 4 */
2232	{0,0,0}, /* 5 */	2262	{0, 0, 0}, /* 5 */
2233	{0,0,0}, /* 6 */	2263	{0, 0, 0}, /* 6 */
2234	{0,0,0}, /* 7 */	2264	{0, 0, 0}, /* 7 */
2235	{0,0,0}, /* 8 */	2265	{0, 0, 0}, /* 8 */
2236	{8,1,2}, /* 9 */	2266	{8, 1, 2}, /* 9 */
2237	{1,2,-1}, /* 10 */	2267	{1, 2, -1}, /* 10 */
2238	{2,10,12}, /* 11 */	2268	{2, 10, 12}, /* 11 */
2239	{2,3,-1}, /* 12 */	2269	{2, 3, -1}, /* 12 */
2240	{2,3,4}, /* 13 */	2270	{2, 3, 4}, /* 13 */
2241	{3,4,-1}, /* 14 */	2271	{3, 4, -1}, /* 14 */
2242	{4,14,16}, /* 15 */	2272	{4, 14, 16}, /* 15 */
2243	{5,4,-1}, /* 16 */	2273	{5, 4, -1}, /* 16 */
2244	{4,5,6}, /* 17 */	2274	{4, 5, 6}, /* 17 */
2245	{6,5,-1}, /* 18 */	2275	{6, 5, -1}, /* 18 */
2246	{6,20,18}, /* 19 */	2276	{6, 20, 18}, /* 19 */
2247	{7,6,-1}, /* 20 */	2277	{7, 6, -1}, /* 20 */
2248	{6,7,8}, /* 21 */	2278	{6, 7, 8}, /* 21 */
2249	{7,8,-1}, /* 22 */	2279	{7, 8, -1}, /* 22 */
2250	{8,22,24}, /* 23 */	2280	{8, 22, 24}, /* 23 */
2251	{8,1,-1}, /* 24 */	2281	{8, 1, -1}, /* 24 */
2252	{24,9,10}, /* 25 */	2282	{24, 9, 10}, /* 25 */
2253	{9,10,-1}, /* 26 */	2283	{9, 10, -1}, /* 26 */
2254	{10,11,-1}, /* 27 */	2284	{10, 11, -1}, /* 27 */
2255	{27,11,29}, /* 28 */	2285	{27, 11, 29}, /* 28 */
2256	{11,12,-1}, /* 29 */	2286	{11, 12, -1}, /* 29 */
2257	{12,13,-1}, /* 30 */	2287	{12, 13, -1}, /* 30 */
2258	{12,13,14}, /* 31 */	2288	{12, 13, 14}, /* 31 */
2259	{13,14,-1}, /* 32 */	2289	{13, 14, -1}, /* 32 */
2260	{14,15,-1}, /* 33 */	2290	{14, 15, -1}, /* 33 */
2261	{33,15,35}, /* 34 */	2291	{33, 15, 35}, /* 34 */
2262	{16,15,-1}, /* 35 */	2292	{16, 15, -1}, /* 35 */
2263	{17,16,-1}, /* 36 */	2293	{17, 16, -1}, /* 36 */
2264	{18,17,16}, /* 37 */	2294	{18, 17, 16}, /* 37 */
2265	{18,17,-1}, /* 38 */	2295	{18, 17, -1}, /* 38 */
2266	{18,19,-1}, /* 39 */	2296	{18, 19, -1}, /* 39 */
2267	{41,19,39}, /* 40 */	2297	{41, 19, 39}, /* 40 */
2268	{19,20,-1}, /* 41 */	2298	{19, 20, -1}, /* 41 */
2269	{20,21,-1}, /* 42 */	2299	{20, 21, -1}, /* 42 */
2270	{20,21,22}, /* 43 */	2300	{20, 21, 22}, /* 43 */
2271	{21,22,-1}, /* 44 */	2301	{21, 22, -1}, /* 44 */
2272	{23,22,-1}, /* 45 */	2302	{23, 22, -1}, /* 45 */
2273	{45,47,23}, /* 46 */	2303	{45, 47, 23}, /* 46 */
2274	{23,24,-1}, /* 47 */	2304	{23, 24, -1}, /* 47 */
2275	{24,9,-1}}; /* 48 */	2305	{24, 9, -1}
		2306	}; /* 48 */
2276		2307
2277	/* Recursive routine to step back and see if we can	2308	/* Recursive routine to step back and see if we can
2278	* find a path to that monster that we found. If not,	2309	* find a path to that monster that we found. If not,
2279	* we don't bother going toward it. Returns 1 if we	2310	* we don't bother going toward it. Returns 1 if we
2280	* can see a direct way to get it	2311	* can see a direct way to get it
2281	* Modified to be map tile aware -.MSW	2312	* Modified to be map tile aware -.MSW
2282	*/	2313	*/
2283		2314	int
2284
2285	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2315	can_see_monsterP (maptile *m, int x, int y, int dir)
		2316	{
2286	sint16 dx, dy;	2317	sint16 dx, dy;
2287	int mflags;	2318	int mflags;
2288		2319
		2320	if (dir < 0)
2289	if(dir<0) return 0; /* exit condition: invalid direction */	2321	return 0; /* exit condition: invalid direction */
2290		2322
2291	dx = x + freearr_x[dir];	2323	dx = x + freearr_x[dir];
2292	dy = y + freearr_y[dir];	2324	dy = y + freearr_y[dir];
2293		2325
2294	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2326	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2295		2327
2296	/* This functional arguably was incorrect before - it was	2328	/* This functional arguably was incorrect before - it was
2297	* checking for P_WALL - that was basically seeing if	2329	* checking for P_WALL - that was basically seeing if
2298	* we could move to the monster - this is being more	2330	* we could move to the monster - this is being more
2299	* literal on if we can see it. To know if we can actually	2331	* literal on if we can see it. To know if we can actually
2300	* move to the monster, we'd need the monster passed in or	2332	* move to the monster, we'd need the monster passed in or
2301	* at least its move type.	2333	* at least its move type.
2302	*/	2334	*/
2303	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2335	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2336	return 0;
2304		2337
2305	/* yes, can see. */	2338	/* yes, can see. */
2306	if(dir < 9) return 1;	2339	if (dir < 9)
		2340	return 1;
		2341
2307	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2342	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2308	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2343	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2309	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2344	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2310	}	2345	}
2311		2346
2312
2313
2314	/*	2347	/*
2315	* can_pick(picker, item): finds out if an object is possible to be	2348	* can_pick(picker, item): finds out if an object is possible to be
2316	* picked up by the picker. Returnes 1 if it can be	2349	* picked up by the picker. Returnes 1 if it can be
2317	* picked up, otherwise 0.	2350	* picked up, otherwise 0.
2318	*	2351	*
…		…
2320	* core dumps if they do.	2353	* core dumps if they do.
2321	*	2354	*
2322	* Add a check so we can't pick up invisible objects (0.93.8)	2355	* Add a check so we can't pick up invisible objects (0.93.8)
2323	*/	2356	*/
2324		2357
		2358	int
2325	int can_pick(const object *who, const object *item) {	2359	can_pick (const object *who, const object *item)
		2360	{
2326	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2361	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2327	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2362	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2328	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2363	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2329	(who->type==PLAYER||item->weight<who->weight/3));
2330	}	2364	}
2331
2332		2365
2333	/*	2366	/*
2334	* create clone from object to another	2367	* create clone from object to another
2335	*/	2368	*/
		2369	object *
2336	object *object_create_clone (object *asrc) {	2370	object_create_clone (object *asrc)
		2371	{
2337	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2372	object *dst = 0, *tmp, *src, *part, *prev, *item;
2338		2373
2339	if(!asrc) return NULL;	2374	if (!asrc)
		2375	return 0;
		2376
2340	src = asrc;	2377	src = asrc;
2341	if(src->head)	2378	if (src->head)
2342	src = src->head;	2379	src = src->head;
2343		2380
2344	prev = NULL;	2381	prev = 0;
2345	for(part = src; part; part = part->more) {	2382	for (part = src; part; part = part->more)
2346	tmp = get_object();	2383	{
2347	copy_object(part,tmp);	2384	tmp = part->clone ();
2348	tmp->x -= src->x;	2385	tmp->x -= src->x;
2349	tmp->y -= src->y;	2386	tmp->y -= src->y;
		2387
2350	if(!part->head) {	2388	if (!part->head)
		2389	{
2351	dst = tmp;	2390	dst = tmp;
2352	tmp->head = NULL;	2391	tmp->head = 0;
		2392	}
2353	} else {	2393	else
2354	tmp->head = dst;	2394	tmp->head = dst;
2355	}	2395
2356	tmp->more = NULL;	2396	tmp->more = 0;
		2397
2357	if(prev)	2398	if (prev)
2358	prev->more = tmp;	2399	prev->more = tmp;
		2400
2359	prev = tmp;	2401	prev = tmp;
2360	}	2402	}
2361	/*** copy inventory ***/	2403
2362	for(item = src->inv; item; item = item->below) {	2404	for (item = src->inv; item; item = item->below)
2363	(void) insert_ob_in_ob(object_create_clone(item),dst);	2405	insert_ob_in_ob (object_create_clone (item), dst);
2364	}
2365		2406
2366	return dst;	2407	return dst;
2367	}
2368
2369	/* return true if the object was destroyed, 0 otherwise */
2370	int was_destroyed (const object *op, tag_t old_tag)
2371	{
2372	/* checking for FLAG_FREED isn't necessary, but makes this function more
2373	* robust */
2374	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2375	}	2408	}
2376		2409
2377	/* GROS - Creates an object using a string representing its content. */	2410	/* GROS - Creates an object using a string representing its content. */
2378	/* Basically, we save the content of the string to a temp file, then call */	2411	/* Basically, we save the content of the string to a temp file, then call */
2379	/* load_object on it. I admit it is a highly inefficient way to make things, */	2412	/* load_object on it. I admit it is a highly inefficient way to make things, */
2380	/* but it was simple to make and allows reusing the load_object function. */	2413	/* but it was simple to make and allows reusing the load_object function. */
2381	/* Remember not to use load_object_str in a time-critical situation. */	2414	/* Remember not to use load_object_str in a time-critical situation. */
2382	/* Also remember that multiparts objects are not supported for now. */	2415	/* Also remember that multiparts objects are not supported for now. */
2383		2416	object *
2384	object* load_object_str(const char *obstr)	2417	load_object_str (const char *obstr)
2385	{	2418	{
2386	object *op;	2419	object *op;
2387	char filename[MAX_BUF];	2420	char filename[MAX_BUF];
		2421
2388	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2422	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2389		2423
2390	FILE *tempfile=fopen(filename,"w");	2424	FILE *tempfile = fopen (filename, "w");
		2425
2391	if (tempfile == NULL)	2426	if (tempfile == NULL)
2392	{	2427	{
2393	LOG(llevError,"Error - Unable to access load object temp file\n");	2428	LOG (llevError, "Error - Unable to access load object temp file\n");
2394	return NULL;	2429	return NULL;
2395	};	2430	}
		2431
2396	fprintf(tempfile,obstr);	2432	fprintf (tempfile, obstr);
2397	fclose(tempfile);	2433	fclose (tempfile);
2398		2434
2399	op=get_object();	2435	op = object::create ();
2400		2436
2401	object_thawer thawer (filename);	2437	object_thawer thawer (filename);
2402		2438
2403	if (thawer)	2439	if (thawer)
2404	load_object(thawer,op,0);	2440	load_object (thawer, op, 0);
2405		2441
2406	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2442	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2407	CLEAR_FLAG(op,FLAG_REMOVED);	2443	CLEAR_FLAG (op, FLAG_REMOVED);
2408		2444
2409	return op;	2445	return op;
2410	}	2446	}
2411		2447
2412	/* This returns the first object in who's inventory that	2448	/* This returns the first object in who's inventory that
2413	* has the same type and subtype match.	2449	* has the same type and subtype match.
2414	* returns NULL if no match.	2450	* returns NULL if no match.
2415	*/	2451	*/
		2452	object *
2416	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2453	find_obj_by_type_subtype (const object *who, int type, int subtype)
2417	{	2454	{
2418	object *tmp;
2419
2420	for (tmp=who->inv; tmp; tmp=tmp->below)	2455	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2421	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2456	if (tmp->type == type && tmp->subtype == subtype)
		2457	return tmp;
2422		2458
2423	return NULL;	2459	return 0;
2424	}	2460	}
2425		2461
2426	/* If ob has a field named key, return the link from the list,	2462	/* If ob has a field named key, return the link from the list,
2427	* otherwise return NULL.	2463	* otherwise return NULL.
2428	*	2464	*
2429	* key must be a passed in shared string - otherwise, this won't	2465	* key must be a passed in shared string - otherwise, this won't
2430	* do the desired thing.	2466	* do the desired thing.
2431	*/	2467	*/
		2468	key_value *
2432	key_value * get_ob_key_link(const object * ob, const char * key) {	2469	get_ob_key_link (const object *ob, const char *key)
2433	key_value * link;	2470	{
2434
2435	for (link = ob->key_values; link != NULL; link = link->next) {	2471	for (key_value *link = ob->key_values; link; link = link->next)
2436	if (link->key == key) {	2472	if (link->key == key)
2437	return link;	2473	return link;
2438	}	2474
2439	}	2475	return 0;
2440		2476	}
2441	return NULL;
2442	}
2443		2477
2444	/*	2478	/*
2445	* Returns the value of op has an extra_field for key, or NULL.	2479	* Returns the value of op has an extra_field for key, or NULL.
2446	*	2480	*
2447	* The argument doesn't need to be a shared string.	2481	* The argument doesn't need to be a shared string.
2448	*	2482	*
2449	* The returned string is shared.	2483	* The returned string is shared.
2450	*/	2484	*/
		2485	const char *
2451	const char * get_ob_key_value(const object * op, const char * const key) {	2486	get_ob_key_value (const object *op, const char *const key)
		2487	{
2452	key_value * link;	2488	key_value *link;
2453	const char * canonical_key;	2489	shstr_cmp canonical_key (key);
		2490
		2491	if (!canonical_key)
2454		2492	{
2455	canonical_key = shstr::find (key);
2456
2457	if (canonical_key == NULL) {
2458	/* 1. There being a field named key on any object	2493	/* 1. There being a field named key on any object
2459	* implies there'd be a shared string to find.	2494	* implies there'd be a shared string to find.
2460	* 2. Since there isn't, no object has this field.	2495	* 2. Since there isn't, no object has this field.
2461	* 3. Therefore, *this* object doesn't have this field.	2496	* 3. Therefore, *this* object doesn't have this field.
2462	*/	2497	*/
2463	return NULL;	2498	return 0;
2464	}	2499	}
2465		2500
2466	/* This is copied from get_ob_key_link() above -	2501	/* This is copied from get_ob_key_link() above -
2467	* only 4 lines, and saves the function call overhead.	2502	* only 4 lines, and saves the function call overhead.
2468	*/	2503	*/
2469	for (link = op->key_values; link != NULL; link = link->next) {	2504	for (link = op->key_values; link; link = link->next)
2470	if (link->key == canonical_key) {	2505	if (link->key == canonical_key)
2471	return link->value;	2506	return link->value;
2472	}	2507
2473	}	2508	return 0;
2474	return NULL;
2475	}	2509	}
2476		2510
2477		2511
2478	/*	2512	/*
2479	* Updates the canonical_key in op to value.	2513	* Updates the canonical_key in op to value.
…		…
2483	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2517	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2484	* keys.	2518	* keys.
2485	*	2519	*
2486	* Returns TRUE on success.	2520	* Returns TRUE on success.
2487	*/	2521	*/
		2522	int
2488	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2523	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2524	{
2489	key_value * field = NULL, *last=NULL;	2525	key_value *field = NULL, *last = NULL;
2490		2526
2491	for (field=op->key_values; field != NULL; field=field->next) {	2527	for (field = op->key_values; field != NULL; field = field->next)
		2528	{
2492	if (field->key != canonical_key) {	2529	if (field->key != canonical_key)
		2530	{
2493	last = field;	2531	last = field;
2494	continue;	2532	continue;
2495	}	2533	}
2496		2534
2497	if (value)	2535	if (value)
2498	field->value = value;	2536	field->value = value;
2499	else {	2537	else
		2538	{
2500	/* Basically, if the archetype has this key set,	2539	/* Basically, if the archetype has this key set,
2501	* we need to store the null value so when we save	2540	* we need to store the null value so when we save
2502	* it, we save the empty value so that when we load,	2541	* it, we save the empty value so that when we load,
2503	* we get this value back again.	2542	* we get this value back again.
2504	*/	2543	*/
2505	if (get_ob_key_link (&op->arch->clone, canonical_key))	2544	if (get_ob_key_link (&op->arch->clone, canonical_key))
2506	field->value = 0;	2545	field->value = 0;
		2546	else
		2547	{
		2548	if (last)
		2549	last->next = field->next;
2507	else	2550	else
2508	{
2509	if (last) last->next = field->next;
2510	else op->key_values = field->next;	2551	op->key_values = field->next;
2511		2552
2512	delete field;	2553	delete field;
2513	}	2554	}
2514	}	2555	}
2515	return TRUE;	2556	return TRUE;
2516	}	2557	}
2517	/* IF we get here, key doesn't exist */	2558	/* IF we get here, key doesn't exist */
2518		2559
2519	/* No field, we'll have to add it. */	2560	/* No field, we'll have to add it. */
2520		2561
2521	if (!add_key) {	2562	if (!add_key)
2522	return FALSE;	2563	return FALSE;
2523	}	2564
2524	/* There isn't any good reason to store a null	2565	/* There isn't any good reason to store a null
2525	* value in the key/value list. If the archetype has	2566	* value in the key/value list. If the archetype has
2526	* this key, then we should also have it, so shouldn't	2567	* this key, then we should also have it, so shouldn't
2527	* be here. If user wants to store empty strings,	2568	* be here. If user wants to store empty strings,
2528	* should pass in ""	2569	* should pass in ""
2529	*/	2570	*/
2530	if (value == NULL) return TRUE;	2571	if (value == NULL)
2531
2532	field = new key_value;
2533
2534	field->key = canonical_key;
2535	field->value = value;
2536	/* Usual prepend-addition. */
2537	field->next = op->key_values;
2538	op->key_values = field;
2539
2540	return TRUE;	2572	return TRUE;
		2573
		2574	field = new key_value;
		2575
		2576	field->key = canonical_key;
		2577	field->value = value;
		2578	/* Usual prepend-addition. */
		2579	field->next = op->key_values;
		2580	op->key_values = field;
		2581
		2582	return TRUE;
2541	}	2583	}
2542		2584
2543	/*	2585	/*
2544	* Updates the key in op to value.	2586	* Updates the key in op to value.
2545	*	2587	*
…		…
2547	* and not add new ones.	2589	* and not add new ones.
2548	* In general, should be little reason FALSE is ever passed in for add_key	2590	* In general, should be little reason FALSE is ever passed in for add_key
2549	*	2591	*
2550	* Returns TRUE on success.	2592	* Returns TRUE on success.
2551	*/	2593	*/
		2594	int
2552	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2595	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2553	{	2596	{
2554	shstr key_ (key);	2597	shstr key_ (key);
		2598
2555	return set_ob_key_value_s (op, key_, value, add_key);	2599	return set_ob_key_value_s (op, key_, value, add_key);
2556	}	2600	}
		2601
		2602	object::depth_iterator::depth_iterator (object *container)
		2603	: iterator_base (container)
		2604	{
		2605	while (item->inv)
		2606	item = item->inv;
		2607	}
		2608
		2609	void
		2610	object::depth_iterator::next ()
		2611	{
		2612	if (item->below)
		2613	{
		2614	item = item->below;
		2615
		2616	while (item->inv)
		2617	item = item->inv;
		2618	}
		2619	else
		2620	item = item->env;
		2621	}
		2622
		2623
		2624	const char *
		2625	object::flag_desc (char *desc, int len) const
		2626	{
		2627	char *p = desc;
		2628	bool first = true;
		2629
		2630	*p = 0;
		2631
		2632	for (int i = 0; i < NUM_FLAGS; i++)
		2633	{
		2634	if (len <= 10) // magic constant!
		2635	{
		2636	snprintf (p, len, ",...");
		2637	break;
		2638	}
		2639
		2640	if (flag [i])
		2641	{
		2642	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2643	len -= cnt;
		2644	p += cnt;
		2645	first = false;
		2646	}
		2647	}
		2648
		2649	return desc;
		2650	}
		2651
		2652	// return a suitable string describing an object in enough detail to find it
		2653	const char *
		2654	object::debug_desc (char *info) const
		2655	{
		2656	char flagdesc[512];
		2657	char info2[256 * 4];
		2658	char *p = info;
		2659
		2660	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",
		2661	count, uuid.seq,
		2662	&name,
		2663	title ? "\",title:" : "",
		2664	title ? (const char *)title : "",
		2665	flag_desc (flagdesc, 512), type);
		2666
		2667	if (env)
		2668	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2669
		2670	if (map)
		2671	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
		2672
		2673	return info;
		2674	}
		2675
		2676	const char *
		2677	object::debug_desc () const
		2678	{
		2679	static char info[256 * 4];
		2680	return debug_desc (info);
		2681	}
		2682

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