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Comparing deliantra/server/common/object.C (file contents):
Revision 1.23 by root, Sun Sep 10 14:54:02 2006 UTC vs.
Revision 1.78 by root, Fri Dec 22 16:34:00 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.23 2006/09/10 14:54:02 root Exp $";
4	*/
5
6	/*	1	/*
7	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
8		3
9	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	5	Copyright (C) 1992 Frank Tore Johansen
…		…
21		16
22	You should have received a copy of the GNU General Public License	17	You should have received a copy of the GNU General Public License
23	along with this program; if not, write to the Free Software	18	along with this program; if not, write to the Free Software
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
25		20
26	The authors can be reached via e-mail at crossfire-devel@real-time.com	21	The authors can be reached via e-mail at <crossfire@schmorp.de>
27	*/	22	*/
28		23
29	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.	24	/* Eneq(@csd.uu.se): Added weight-modifiers in environment of objects.
30	sub/add_weight will transcend the environment updating the carrying	25	sub/add_weight will transcend the environment updating the carrying
31	variable. */	26	variable. */
32	#include <global.h>	27	#include <global.h>
33	#ifndef WIN32 /* ---win32 exclude headers */
34	#include <stdio.h>	28	#include <stdio.h>
35	#include <sys/types.h>	29	#include <sys/types.h>
36	#include <sys/uio.h>	30	#include <sys/uio.h>
37	#endif /* win32 */
38	#include <object.h>	31	#include <object.h>
39	#include <funcpoint.h>	32	#include <funcpoint.h>
40	#include <skills.h>
41	#include <loader.h>	33	#include <loader.h>
		34
		35	#include <bitset>
		36
42	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
		38	static UUID uuid;
		39	const uint64 UUID_SKIP = 1<<19;
43		40
44	object *objects; /* Pointer to the list of used objects */
45	object *active_objects; /* List of active objects that need to be processed */	41	object *active_objects; /* List of active objects that need to be processed */
46		42
47	short freearr_x[SIZEOFFREE]=	43	short freearr_x[SIZEOFFREE] = { 0, 0, 1, 1, 1, 0, -1, -1, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2, -2, -2, -2, -1,
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};	44	0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3, -3, -3, -3, -3, -2, -1
50	short freearr_y[SIZEOFFREE]=	45	};
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,	46	short freearr_y[SIZEOFFREE] = { 0, -1, -1, 0, 1, 1, 1, 0, -1, -2, -2, -2, -1, 0, 1, 2, 2, 2, 2, 2, 1, 0, -1, -2, -2,
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};	47	-3, -3, -3, -3, -2, -1, 0, 1, 2, 3, 3, 3, 3, 3, 3, 3, 2, 1, 0, -1, -2, -3, -3, -3
53	int maxfree[SIZEOFFREE]=	48	};
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,	49	int maxfree[SIZEOFFREE] = { 0, 9, 10, 13, 14, 17, 18, 21, 22, 25, 26, 27, 30, 31, 32, 33, 36, 37, 39, 39, 42, 43, 44, 45,
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};	50	48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49
		51	};
56	int freedir[SIZEOFFREE]= {	52	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,	53	0, 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 2, 2, 3, 4, 4, 4, 5, 6, 6, 6, 7, 8, 8, 8,
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};	54	1, 2, 2, 2, 2, 2, 3, 4, 4, 4, 4, 4, 5, 6, 6, 6, 6, 6, 7, 8, 8, 8, 8, 8
		55	};
		56
		57	static void
		58	write_uuid (void)
		59	{
		60	char filename1[MAX_BUF], filename2[MAX_BUF];
		61
		62	sprintf (filename1, "%s/uuid", settings.localdir);
		63	sprintf (filename2, "%s/uuid~", settings.localdir);
		64
		65	FILE *fp;
		66
		67	if (!(fp = fopen (filename2, "w")))
		68	{
		69	LOG (llevError, "ERROR: cannot open %s for writing, unable to write UUID!\n", filename2);
		70	return;
		71	}
		72
		73	fprintf (fp, "<1,%llx>\n", (unsigned long long)uuid.seq + UUID_SKIP * 2);
		74	fclose (fp);
		75	rename (filename2, filename1);
		76	}
		77
		78	static void
		79	read_uuid (void)
		80	{
		81	char filename[MAX_BUF];
		82
		83	sprintf (filename, "%s/uuid", settings.localdir);
		84
		85	FILE *fp;
		86
		87	if (!(fp = fopen (filename, "r")))
		88	{
		89	if (errno == ENOENT)
		90	{
		91	LOG (llevInfo, "RESET uid to 1\n");
		92	uuid.seq = 0;
		93	write_uuid ();
		94	return;
		95	}
		96
		97	LOG (llevError, "FATAL: cannot open %s for reading!\n", filename);
		98	_exit (1);
		99	}
		100
		101	int version;
		102	unsigned long long uid;
		103	if (2 != fscanf (fp, "<%d,%llx>\n", &version, &uid) || version != 1)
		104	{
		105	LOG (llevError, "FATAL: error reading uid from %s!\n", filename);
		106	_exit (1);
		107	}
		108
		109	uuid.seq = uid;
		110	write_uuid ();
		111	LOG (llevDebug, "read UID: %" PRId64 "\n", uid);
		112	fclose (fp);
		113	}
		114
		115	UUID
		116	gen_uuid ()
		117	{
		118	UUID uid;
		119
		120	uid.seq = ++uuid.seq;
		121
		122	if (!(uuid.seq & (UUID_SKIP - 1)))
		123	write_uuid ();
		124
		125	return uid;
		126	}
		127
		128	void
		129	init_uuid ()
		130	{
		131	read_uuid ();
		132	}
59		133
60	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */	134	/* Returns TRUE if every key_values in wants has a partner with the same value in has. */
		135	static int
61	static int compare_ob_value_lists_one(const object * wants, const object * has) {	136	compare_ob_value_lists_one (const object *wants, const object *has)
		137	{
62	key_value * wants_field;	138	key_value *wants_field;
63		139
64	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both	140	/* n-squared behaviour (see get_ob_key_link()), but I'm hoping both
65	* objects with lists are rare, and lists stay short. If not, use a	141	* objects with lists are rare, and lists stay short. If not, use a
66	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
67	*/	143	*/
68		144
69	/* For each field in wants, */	145	/* For each field in wants, */
70	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		147	{
71	key_value * has_field;	148	key_value *has_field;
72		149
73	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
74	has_field = get_ob_key_link(has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
		152
		153	if (has_field == NULL)
75		154	{
76	if (has_field == NULL) {
77	/* No field with that name. */	155	/* No field with that name. */
78	return FALSE;	156	return FALSE;
79	}
80		157	}
		158
81	/* Found the matching field. */	159	/* Found the matching field. */
82	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
83	/* Values don't match, so this half of the comparison is false. */	162	/* Values don't match, so this half of the comparison is false. */
84	return FALSE;	163	return FALSE;
85	}	164	}
86		165
87	/* If we get here, we found a match. Now for the next field in wants. */	166	/* If we get here, we found a match. Now for the next field in wants. */
88	}
89		167	}
		168
90	/* If we get here, every field in wants has a matching field in has. */	169	/* If we get here, every field in wants has a matching field in has. */
91	return TRUE;	170	return TRUE;
92	}	171	}
93		172
94	/* Returns TRUE if ob1 has the same key_values as ob2. */	173	/* Returns TRUE if ob1 has the same key_values as ob2. */
		174	static int
95	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
96	/* However, there may be fields in has which aren't partnered in wants,	177	/* However, there may be fields in has which aren't partnered in wants,
97	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
98	*/	179	*/
99	return compare_ob_value_lists_one(ob1, ob2) && compare_ob_value_lists_one(ob2, ob1);	180	return compare_ob_value_lists_one (ob1, ob2) && compare_ob_value_lists_one (ob2, ob1);
100	}	181	}
101		182
102	/* Function examines the 2 objects given to it, and returns true if	183	/* Function examines the 2 objects given to it, and returns true if
103	* they can be merged together.	184	* they can be merged together.
104	*	185	*
105	* Note that this function appears a lot longer than the macro it	186	* Note that this function appears a lot longer than the macro it
106	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
107	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
108	*	189	*
109	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
110	*	191	*
111	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
112	* check weight	193	* check weight
113	*/	194	*/
114		195
115	bool
116	object::can_merge (object *ob1, object *ob2)	196	bool object::can_merge_slow (object *ob1, object *ob2)
117	{	197	{
118	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
119	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)
120	return 0;	204	return 0;
121		205
122	if (ob1->speed != ob2->speed)	206	//TODO: this ain't working well, use nicer and correct overflow check
123	return 0;
124
125	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
126	* value could not be stored in a sint32 (which unfortunately sometimes is	208	* value could not be stored in a sint32 (which unfortunately sometimes is
127	* used to store nrof).	209	* used to store nrof).
128	*/	210	*/
129	if (ob1->nrof + ob2->nrof >= 1UL << 31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
139	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
140		222
141	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
142	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
143		225
144		226	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
145	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
146	* being locked in inventory should prevent merging.
147	* 0x4 in flags3 is CLIENT_SENT
148	*/
149	if ((ob1->arch != ob2->arch) ||
150	(ob1->flags[0] != ob2->flags[0]) ||
151	(ob1->flags[1] != ob2->flags[1]) ||
152	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
153	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
154	(ob1->name != ob2->name) ||	228	|| ob1->name != ob2->name
155	(ob1->title != ob2->title) ||	229	|| ob1->title != ob2->title
156	(ob1->msg != ob2->msg) ||	230	|| ob1->msg != ob2->msg
157	(ob1->weight != ob2->weight) ||	231	|| ob1->weight != ob2->weight
158	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
159	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
160	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
161	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
162	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
163	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
164	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
165	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
166	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
167	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
168	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
169	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
170	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
171	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
172	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
173	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
174	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
175	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
176	(ob1->move_slow_penalty != ob2->move_slow_penalty))	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
177	return 0;	251	return 0;
178		252
179	/* This is really a spellbook check - really, we should	253	/* This is really a spellbook check - really, we should
180	* check all objects in the inventory.	254	* check all objects in the inventory.
181	*/	255	*/
182	if (ob1->inv || ob2->inv)	256	if (ob1->inv || ob2->inv)
183	{	257	{
184	/* 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 */
185	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
186	return 0;	260	return 0;
187		261
188	/* Now check to see if the two inventory objects could merge */	262	/* Now check to see if the two inventory objects could merge */
189	if (!CAN_MERGE (ob1->inv, ob2->inv))	263	if (!object::can_merge (ob1->inv, ob2->inv))
190	return 0;	264	return 0;
191		265
192	/* 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
193	* if it is valid.	267	* if it is valid.
194	*/	268	*/
195	}	269	}
…		…
203		277
204	/* 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
205	* 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
206	* check?	280	* check?
207	*/	281	*/
208	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
209	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
210	return 0;	283	return 0;
211		284
212	switch (ob1->type)	285	switch (ob1->type)
213	{	286	{
214	case SCROLL:	287	case SCROLL:
215	if (ob1->level != ob2->level)	288	if (ob1->level != ob2->level)
216	return 0;	289	return 0;
217	break;	290	break;
218	}	291	}
219		292
220	if (ob1->key_values != NULL || ob2->key_values != NULL)	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
221	{	294	{
222	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
223	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
224	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
225	return 0;	298	return 0;
226	else if (!compare_ob_value_lists (ob1, ob2))	299	else if (!compare_ob_value_lists (ob1, ob2))
227	return 0;	300	return 0;
228	}	301	}
229		302
230	//TODO: generate an event or call into perl for additional checks	303	//TODO: generate an event or call into perl for additional checks
231	if (ob1->self || ob2->self)	304	if (ob1->self || ob2->self)
232	{	305	{
233	ob1->optimise ();	306	ob1->optimise ();
234	ob2->optimise ();	307	ob2->optimise ();
235		308
236	if (ob1->self || ob2->self)	309	if (ob1->self || ob2->self)
237	return 0;	310	return 0;
238	}	311	}
239		312
240	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
241	return 1;	314	return 1;
242	}	315	}
		316
243	/*	317	/*
244	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
245	* 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
246	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
247	*/	321	*/
248	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
249	signed long sum;	325	long sum;
250	object *inv;	326	object *inv;
		327
251	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
252	if (inv->inv)	330	if (inv->inv)
253	sum_weight(inv);	331	sum_weight (inv);
254	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
255	}	333	}
		334
256	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
257	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
258	if(op->carrying != sum)	338	if (op->carrying != sum)
259	op->carrying = sum;	339	op->carrying = sum;
		340
260	return sum;	341	return sum;
261	}	342	}
262		343
263	/**	344	/**
264	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
265	*/	346	*/
266		347
		348	object *
267	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
268	while (op->env != NULL)	351	while (op->env != NULL)
269	op = op->env;	352	op = op->env;
270	return op;	353	return op;
271	}
272
273	/*
274	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
275	* a better check. We basically keeping traversing up until we can't
276	* or find a player.
277	*/
278
279	object *is_player_inv (object *op) {
280	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
281	if (op->env==op)
282	op->env = NULL;
283	return op;
284	}	354	}
285		355
286	/*	356	/*
287	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
288	* Some error messages.	358	* Some error messages.
289	* 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.
290	*/	360	*/
291		361
292	void dump_object2(object *op) {	362	char *
293	errmsg[0] = 0;
294	return;
295	//TODO//D#d#
296	#if 0
297	char *cp;
298	/* object *tmp;*/
299
300	if(op->arch!=NULL) {
301	strcat(errmsg,"arch ");
302	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
303	strcat(errmsg,"\n");
304	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
305	strcat(errmsg,cp);
306	#if 0
307	/* Don't dump player diffs - they are too long, mostly meaningless, and
308	* will overflow the buffer.
309	* Changed so that we don't dump inventory either. This may
310	* also overflow the buffer.
311	*/
312	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
313	strcat(errmsg,cp);
314	for (tmp=op->inv; tmp; tmp=tmp->below)
315	dump_object2(tmp);
316	#endif
317	strcat(errmsg,"end\n");
318	} else {
319	strcat(errmsg,"Object ");
320	if (op->name==NULL) strcat(errmsg, "(null)");
321	else strcat(errmsg,op->name);
322	strcat(errmsg,"\n");
323	#if 0
324	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
325	strcat(errmsg,cp);
326	for (tmp=op->inv; tmp; tmp=tmp->below)
327	dump_object2(tmp);
328	#endif
329	strcat(errmsg,"end\n");
330	}
331	#endif
332	}
333
334	/*
335	* Dumps an object. Returns output in the static global errmsg array.
336	*/
337
338	void dump_object(object *op) {	363	dump_object (object *op)
339	if(op==NULL) {	364	{
340	strcpy(errmsg,"[NULL pointer]");	365	if (!op)
341	return;	366	return strdup ("[NULLOBJ]");
342	}
343	errmsg[0]='\0';
344	dump_object2(op);
345	}
346		367
347	void dump_all_objects(void) {	368	object_freezer freezer;
348	object *op;	369	save_object (freezer, op, 3);
349	for(op=objects;op!=NULL;op=op->next) {	370	return freezer.as_string ();
350	dump_object(op);
351	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
352	}
353	}	371	}
354		372
355	/*	373	/*
356	* 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
357	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
358	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
359	*/	377	*/
360		378
		379	object *
361	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
362	object *tmp,*closest;	382	object *tmp, *closest;
363	int last_dist,i;	383	int last_dist, i;
		384
364	if(op->more==NULL)	385	if (op->more == NULL)
365	return op;	386	return op;
366	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)
367	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
368	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
369	return closest;	390	return closest;
370	}	391	}
371		392
372	/*	393	/*
373	* 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.
374	*/	395	*/
375		396
		397	object *
376	object *find_object(tag_t i) {	398	find_object (tag_t i)
377	object *op;	399	{
378	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
379	if(op->count==i)	401	if (op->count == i)
380	break;	402	return op;
		403
381	return op;	404	return 0;
382	}	405	}
383		406
384	/*	407	/*
385	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
386	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
387	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
388	*/	411	*/
389		412
		413	object *
390	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
391	const char *name = shstr::find (str);	415	{
		416	shstr_cmp str_ (str);
392	object *op;	417	object *op;
		418
393	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
394	if(&op->name == name)	420	if (op->name == str_)
395	break;	421	break;
396		422
397	return op;	423	return op;
398	}	424	}
399		425
		426	void
400	void free_all_object_data ()	427	free_all_object_data ()
401	{	428	{
402	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
403	}
404
405	/*
406	* Returns the object which this object marks as being the owner.
407	* A id-scheme is used to avoid pointing to objects which have been
408	* freed and are now reused. If this is detected, the owner is
409	* set to NULL, and NULL is returned.
410	* Changed 2004-02-12 - if the player is setting at the play again
411	* prompt, he is removed, and we don't want to treat him as an owner of
412	* anything, so check removed flag. I don't expect that this should break
413	* anything - once an object is removed, it is basically dead anyways.
414	*/
415
416	object *get_owner(object *op) {
417	if(op->owner==NULL)
418	return NULL;
419
420	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
421	op->owner->count==op->ownercount)
422	return op->owner;
423
424	op->owner=NULL;
425	op->ownercount=0;
426	return NULL;
427	}
428
429	void clear_owner(object *op)
430	{
431	if (!op) return;
432
433	if (op->owner && op->ownercount == op->owner->count)
434	op->owner->refcount--;
435
436	op->owner = NULL;
437	op->ownercount = 0;
438	}	430	}
439		431
440	/*	432	/*
441	* 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
442	* skill and experience objects.	434	* skill and experience objects.
443	*/	435	*/
444	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
445	{	438	{
446	if(owner==NULL||op==NULL)	439	if (!owner)
447	return;	440	return;
448		441
449	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
450	/* 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
451	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
452	* 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
453	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
454	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
455	*/	448	*/
456	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
457	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
458		451
459	/* IF the owner still has an owner, we did not resolve to a final owner.
460	* so lets not add to that.
461	*/
462	if (owner->owner) return;
463
464	op->owner=owner;	452	this->owner = owner;
465
466	op->ownercount=owner->count;
467	owner->refcount++;
468
469	}
470
471	/* Set the owner to clone's current owner and set the skill and experience
472	* objects to clone's objects (typically those objects that where the owner's
473	* current skill and experience objects at the time when clone's owner was
474	* set - not the owner's current skill and experience objects).
475	*
476	* Use this function if player created an object (e.g. fire bullet, swarm
477	* spell), and this object creates further objects whose kills should be
478	* accounted for the player's original skill, even if player has changed
479	* skills meanwhile.
480	*/
481	void copy_owner (object *op, object *clone)
482	{
483	object *owner = get_owner (clone);
484	if (owner == NULL) {
485	/* players don't have owners - they own themselves. Update
486	* as appropriate.
487	*/
488	if (clone->type == PLAYER) owner=clone;
489	else return;
490	}
491	set_owner(op, owner);
492
493	}	453	}
494		454
495	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
496	* refcounts and freeing the links.	456	* refcounts and freeing the links.
497	*/	457	*/
		458	static void
498	static void free_key_values(object * op)	459	free_key_values (object *op)
499	{	460	{
500	for (key_value *i = op->key_values; i != 0; )	461	for (key_value *i = op->key_values; i != 0;)
501	{	462	{
502	key_value *next = i->next;	463	key_value *next = i->next;
503	delete i;	464	delete i;
		465
504	i = next;	466	i = next;
505	}	467	}
506		468
507	op->key_values = 0;	469	op->key_values = 0;
508	}	470	}
509		471
510	void object::clear ()
511	{
512	attachable_base::clear ();
513
514	free_key_values (this);
515
516	name = 0;
517	name_pl = 0;
518	title = 0;
519	race = 0;
520	slaying = 0;
521	skill = 0;
522	msg = 0;
523	lore = 0;
524	custom_name = 0;
525	materialname = 0;
526
527	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
528
529	SET_FLAG (this, FLAG_REMOVED);
530	}
531
532	void object::clone (object *destination)
533	{
534	*(object_copy *)destination = *this;
535	*(object_pod *)destination = *this;
536
537	if (self || cb)
538	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
539	}
540
541	/*	472	/*
542	* clear_object() frees everything allocated by an object, and also
543	* clears all variables and flags to default settings.
544	*/
545
546	void clear_object (object *op)
547	{
548	op->clear ();
549
550	op->contr = NULL;
551	op->below = NULL;
552	op->above = NULL;
553	op->inv = NULL;
554	op->container=NULL;
555	op->env=NULL;
556	op->more=NULL;
557	op->head=NULL;
558	op->map=NULL;
559	op->refcount=0;
560	op->active_next = NULL;
561	op->active_prev = NULL;
562	/* What is not cleared is next, prev, and count */
563
564	op->expmul = 1.0;
565	op->face = blank_face;
566	op->attacked_by_count = -1;
567
568	if (settings.casting_time)
569	op->casting_time = -1;
570	}
571
572	/*
573	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
574	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
575	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
576	* 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,
577	* 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
578	* will point at garbage.	478	* will point at garbage.
579	*/	479	*/
580		480	void
581	void copy_object (object *op2, object *op)	481	object::copy_to (object *dst)
582	{	482	{
583	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
584	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
585		485
586	op2->clone (op);	486	*(object_copy *)dst = *this;
		487	*(object_pod *)dst = *this;
587		488
588	if (is_freed) SET_FLAG (op, FLAG_FREED);	489	if (self || cb)
589	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	490	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
590		491
		492	if (is_freed)
		493	SET_FLAG (dst, FLAG_FREED);
		494
		495	if (is_removed)
		496	SET_FLAG (dst, FLAG_REMOVED);
		497
591	if (op2->speed < 0)	498	if (speed < 0)
592	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	499	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
593		500
594	/* Copy over key_values, if any. */	501	/* Copy over key_values, if any. */
595	if (op2->key_values)	502	if (key_values)
596	{	503	{
597	key_value *tail = 0;	504	key_value *tail = 0;
598	key_value *i;	505	key_value *i;
599		506
600	op->key_values = 0;	507	dst->key_values = 0;
601		508
602	for (i = op2->key_values; i; i = i->next)	509	for (i = key_values; i; i = i->next)
603	{	510	{
604	key_value *new_link = new key_value;	511	key_value *new_link = new key_value;
605		512
606	new_link->next = 0;	513	new_link->next = 0;
607	new_link->key = i->key;	514	new_link->key = i->key;
608	new_link->value = i->value;	515	new_link->value = i->value;
609		516
610	/* Try and be clever here, too. */	517	/* Try and be clever here, too. */
611	if (!op->key_values)	518	if (!dst->key_values)
612	{	519	{
613	op->key_values = new_link;	520	dst->key_values = new_link;
614	tail = new_link;	521	tail = new_link;
615	}	522	}
616	else	523	else
617	{	524	{
618	tail->next = new_link;	525	tail->next = new_link;
619	tail = new_link;	526	tail = new_link;
620	}	527	}
621	}	528	}
622	}	529	}
623		530
624	update_ob_speed (op);	531	update_ob_speed (dst);
		532	}
		533
		534	object *
		535	object::clone ()
		536	{
		537	object *neu = create ();
		538	copy_to (neu);
		539	return neu;
625	}	540	}
626		541
627	/*	542	/*
628	* If an object with the IS_TURNABLE() flag needs to be turned due	543	* If an object with the IS_TURNABLE() flag needs to be turned due
629	* to the closest player being on the other side, this function can	544	* to the closest player being on the other side, this function can
630	* be called to update the face variable, _and_ how it looks on the map.	545	* be called to update the face variable, _and_ how it looks on the map.
631	*/	546	*/
632		547
		548	void
633	void update_turn_face(object *op) {	549	update_turn_face (object *op)
		550	{
634	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	551	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
635	return;	552	return;
636	SET_ANIMATION(op, op->direction);	553	SET_ANIMATION (op, op->direction);
637	update_object(op,UP_OBJ_FACE);	554	update_object (op, UP_OBJ_FACE);
638	}	555	}
639		556
640	/*	557	/*
641	* Updates the speed of an object. If the speed changes from 0 to another	558	* Updates the speed of an object. If the speed changes from 0 to another
642	* value, or vice versa, then add/remove the object from the active list.	559	* value, or vice versa, then add/remove the object from the active list.
643	* This function needs to be called whenever the speed of an object changes.	560	* This function needs to be called whenever the speed of an object changes.
644	*/	561	*/
645		562	void
646	void update_ob_speed(object *op) {	563	update_ob_speed (object *op)
		564	{
647	extern int arch_init;	565	extern int arch_init;
648		566
649	/* No reason putting the archetypes objects on the speed list,	567	/* No reason putting the archetypes objects on the speed list,
650	* since they never really need to be updated.	568	* since they never really need to be updated.
651	*/	569	*/
652		570
653	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	571	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		572	{
654	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	573	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
655	#ifdef MANY_CORES	574	#ifdef MANY_CORES
656	abort();	575	abort ();
657	#else	576	#else
658	op->speed = 0;	577	op->speed = 0;
659	#endif	578	#endif
660	}	579	}
		580
661	if (arch_init) {	581	if (arch_init)
		582	return;
		583
		584	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		585	{
		586	/* If already on active list, don't do anything */
		587	if (op->active_next || op->active_prev || op == active_objects)
662	return;	588	return;
663	}
664	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
665	/* If already on active list, don't do anything */
666	if (op->active_next || op->active_prev || op==active_objects)
667	return;
668		589
669	/* process_events() expects us to insert the object at the beginning	590	/* process_events() expects us to insert the object at the beginning
670	* of the list. */	591	* of the list. */
671	op->active_next = active_objects;	592	op->active_next = active_objects;
		593
672	if (op->active_next!=NULL)	594	if (op->active_next != NULL)
673	op->active_next->active_prev = op;	595	op->active_next->active_prev = op;
		596
674	active_objects = op;	597	active_objects = op;
		598	}
		599	else
675	}	600	{
676	else {
677	/* If not on the active list, nothing needs to be done */	601	/* If not on the active list, nothing needs to be done */
678	if (!op->active_next && !op->active_prev && op!=active_objects)	602	if (!op->active_next && !op->active_prev && op != active_objects)
679	return;	603	return;
680		604
681	if (op->active_prev==NULL) {	605	if (op->active_prev == NULL)
		606	{
682	active_objects = op->active_next;	607	active_objects = op->active_next;
		608
683	if (op->active_next!=NULL)	609	if (op->active_next != NULL)
684	op->active_next->active_prev = NULL;	610	op->active_next->active_prev = NULL;
		611	}
		612	else
685	}	613	{
686	else {
687	op->active_prev->active_next = op->active_next;	614	op->active_prev->active_next = op->active_next;
		615
688	if (op->active_next)	616	if (op->active_next)
689	op->active_next->active_prev = op->active_prev;	617	op->active_next->active_prev = op->active_prev;
690	}	618	}
		619
691	op->active_next = NULL;	620	op->active_next = NULL;
692	op->active_prev = NULL;	621	op->active_prev = NULL;
693	}	622	}
694	}	623	}
695		624
696	/* This function removes object 'op' from the list of active	625	/* This function removes object 'op' from the list of active
697	* objects.	626	* objects.
…		…
699	* reference maps where you don't want an object that isn't	628	* reference maps where you don't want an object that isn't
700	* in play chewing up cpu time getting processed.	629	* in play chewing up cpu time getting processed.
701	* The reverse of this is to call update_ob_speed, which	630	* The reverse of this is to call update_ob_speed, which
702	* will do the right thing based on the speed of the object.	631	* will do the right thing based on the speed of the object.
703	*/	632	*/
		633	void
704	void remove_from_active_list(object *op)	634	remove_from_active_list (object *op)
705	{	635	{
706	/* If not on the active list, nothing needs to be done */	636	/* If not on the active list, nothing needs to be done */
707	if (!op->active_next && !op->active_prev && op!=active_objects)	637	if (!op->active_next && !op->active_prev && op != active_objects)
708	return;	638	return;
709		639
710	if (op->active_prev==NULL) {	640	if (op->active_prev == NULL)
		641	{
711	active_objects = op->active_next;	642	active_objects = op->active_next;
712	if (op->active_next!=NULL)	643	if (op->active_next != NULL)
713	op->active_next->active_prev = NULL;	644	op->active_next->active_prev = NULL;
		645	}
		646	else
714	}	647	{
715	else {
716	op->active_prev->active_next = op->active_next;	648	op->active_prev->active_next = op->active_next;
717	if (op->active_next)	649	if (op->active_next)
718	op->active_next->active_prev = op->active_prev;	650	op->active_next->active_prev = op->active_prev;
719	}	651	}
720	op->active_next = NULL;	652	op->active_next = NULL;
721	op->active_prev = NULL;	653	op->active_prev = NULL;
722	}	654	}
723		655
724	/*	656	/*
725	* update_object() updates the array which represents the map.	657	* update_object() updates the the map.
726	* It takes into account invisible objects (and represent squares covered	658	* It takes into account invisible objects (and represent squares covered
727	* by invisible objects by whatever is below them (unless it's another	659	* by invisible objects by whatever is below them (unless it's another
728	* invisible object, etc...)	660	* invisible object, etc...)
729	* If the object being updated is beneath a player, the look-window	661	* If the object being updated is beneath a player, the look-window
730	* of that player is updated (this might be a suboptimal way of	662	* of that player is updated (this might be a suboptimal way of
731	* updating that window, though, since update_object() is called _often_)	663	* updating that window, though, since update_object() is called _often_)
732	*	664	*
733	* action is a hint of what the caller believes need to be done.	665	* action is a hint of what the caller believes need to be done.
734	* For example, if the only thing that has changed is the face (due to
735	* an animation), we don't need to call update_position until that actually
736	* comes into view of a player. OTOH, many other things, like addition/removal
737	* of walls or living creatures may need us to update the flags now.
738	* current action are:	666	* current action are:
739	* UP_OBJ_INSERT: op was inserted	667	* UP_OBJ_INSERT: op was inserted
740	* UP_OBJ_REMOVE: op was removed	668	* UP_OBJ_REMOVE: op was removed
741	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	669	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
742	* as that is easier than trying to look at what may have changed.	670	* as that is easier than trying to look at what may have changed.
743	* UP_OBJ_FACE: only the objects face has changed.	671	* UP_OBJ_FACE: only the objects face has changed.
744	*/	672	*/
745		673	void
746	void update_object(object *op, int action) {	674	update_object (object *op, int action)
747	int update_now=0, flags;	675	{
748	MoveType move_on, move_off, move_block, move_slow;	676	MoveType move_on, move_off, move_block, move_slow;
749		677
750	if (op == NULL) {	678	if (op == NULL)
		679	{
751	/* this should never happen */	680	/* this should never happen */
752	LOG(llevDebug,"update_object() called for NULL object.\n");	681	LOG (llevDebug, "update_object() called for NULL object.\n");
753	return;	682	return;
754	}
755		683	}
756	if(op->env!=NULL) {	684
		685	if (op->env)
		686	{
757	/* Animation is currently handled by client, so nothing	687	/* Animation is currently handled by client, so nothing
758	* to do in this case.	688	* to do in this case.
759	*/	689	*/
760	return;	690	return;
761	}	691	}
762		692
763	/* If the map is saving, don't do anything as everything is	693	/* If the map is saving, don't do anything as everything is
764	* going to get freed anyways.	694	* going to get freed anyways.
765	*/	695	*/
766	if (!op->map || op->map->in_memory == MAP_SAVING) return;	696	if (!op->map || op->map->in_memory == MAP_SAVING)
767		697	return;
		698
768	/* make sure the object is within map boundaries */	699	/* make sure the object is within map boundaries */
769	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	700	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
770	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	701	{
771	LOG(llevError,"update_object() called for object out of map!\n");	702	LOG (llevError, "update_object() called for object out of map!\n");
772	#ifdef MANY_CORES	703	#ifdef MANY_CORES
773	abort();	704	abort ();
774	#endif	705	#endif
775	return;	706	return;
776	}
777		707	}
778	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
779	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
780	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
781	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
782	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
783	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
784		708
		709	mapspace &m = op->ms ();
		710
		711	if (m.flags_ & P_NEED_UPDATE)
		712	/* nop */;
785	if (action == UP_OBJ_INSERT) {	713	else if (action == UP_OBJ_INSERT)
		714	{
		715	// this is likely overkill, TODO: revisit (schmorp)
786	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	716	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
787	update_now=1;
788
789	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	717	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
790	update_now=1;	718	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
791		719	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		720	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
792	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	721	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
793	update_now=1;	722	|| (m.move_on | op->move_on ) != m.move_on
794
795	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
796	update_now=1;
797
798	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
799	update_now=1;
800
801	if ((move_on | op->move_on) != move_on) update_now=1;
802
803	if ((move_off | op->move_off) != move_off) update_now=1;	723	|| (m.move_off | op->move_off ) != m.move_off
804		724	|| (m.move_slow | op->move_slow) != m.move_slow
805	/* This isn't perfect, but I don't expect a lot of objects to	725	/* This isn't perfect, but I don't expect a lot of objects to
806	* to have move_allow right now.	726	* to have move_allow right now.
807	*/	727	*/
808	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	728	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
809	update_now=1;	729	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
810		730	m.flags_ = P_NEED_UPDATE;
811	if ((move_slow | op->move_slow) != move_slow)
812	update_now=1;
813	}	731	}
814	/* if the object is being removed, we can't make intelligent	732	/* if the object is being removed, we can't make intelligent
815	* decisions, because remove_ob can't really pass the object	733	* decisions, because remove_ob can't really pass the object
816	* that is being removed.	734	* that is being removed.
817	*/	735	*/
818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	736	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
819	update_now=1;	737	m.flags_ = P_NEED_UPDATE;
820	} else if (action == UP_OBJ_FACE) {	738	else if (action == UP_OBJ_FACE)
821	/* Nothing to do for that case */	739	/* Nothing to do for that case */ ;
822	}
823	else {	740	else
824	LOG(llevError,"update_object called with invalid action: %d\n", action);	741	LOG (llevError, "update_object called with invalid action: %d\n", action);
825	}
826		742
827	if (update_now) {
828	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
829	update_position(op->map, op->x, op->y);
830	}
831
832	if(op->more!=NULL)	743	if (op->more)
833	update_object(op->more, action);	744	update_object (op->more, action);
834	}	745	}
835		746
836	static std::vector<object *> mortals;	747	object::vector object::mortals;
		748	object::vector object::objects; // not yet used
		749	object *object::first;
837		750
838	void object::free_mortals ()	751	void object::free_mortals ()
839	{	752	{
840	for (std::vector<object *>::iterator i = mortals.begin (); i != mortals.end (); ++i)	753	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		754	if ((*i)->refcnt)
		755	++i; // further delay freeing
		756	else
		757	{
841	delete *i;	758	delete *i;
842		759	mortals.erase (i);
843	mortals.clear ();	760	}
844	}	761	}
845		762
846	object::object ()	763	object::object ()
847	{	764	{
848	SET_FLAG (this, FLAG_REMOVED);	765	SET_FLAG (this, FLAG_REMOVED);
849		766
850	expmul = 1.0;	767	expmul = 1.0;
851	face = blank_face;	768	face = blank_face;
852	attacked_by_count = -1;
853	}	769	}
854		770
855	object::~object ()	771	object::~object ()
856	{	772	{
857	free_key_values (this);	773	free_key_values (this);
858	}	774	}
859		775
860	void
861	object::link ()	776	void object::link ()
862	{	777	{
863	count = ++ob_count;	778	count = ++ob_count;
		779	uuid = gen_uuid ();
864		780
865	prev = 0;	781	prev = 0;
866	next = objects;	782	next = object::first;
867		783
868	if (objects)	784	if (object::first)
869	objects->prev = this;	785	object::first->prev = this;
870		786
871	objects = this;	787	object::first = this;
872	}	788	}
873		789
874	void
875	object::unlink ()	790	void object::unlink ()
876	{	791	{
877	count = 0;	792	if (this == object::first)
		793	object::first = next;
878		794
879	/* Remove this object from the list of used objects */	795	/* Remove this object from the list of used objects */
880	if (prev) prev->next = next;	796	if (prev) prev->next = next;
881	if (next) next->prev = prev;	797	if (next) next->prev = prev;
882	if (this == objects) objects = next;	798
883	}	799	prev = 0;
		800	next = 0;
		801	}
884		802
885	object *object::create ()	803	object *object::create ()
886	{	804	{
887	object *op = new object;	805	object *op = new object;
888	op->link ();	806	op->link ();
…		…
894	* it from the list of used objects, and puts it on the list of	812	* it from the list of used objects, and puts it on the list of
895	* free objects. The IS_FREED() flag is set in the object.	813	* free objects. The IS_FREED() flag is set in the object.
896	* The object must have been removed by remove_ob() first for	814	* The object must have been removed by remove_ob() first for
897	* this function to succeed.	815	* this function to succeed.
898	*	816	*
899	* If free_inventory is set, free inventory as well. Else drop items in	817	* If destroy_inventory is set, free inventory as well. Else drop items in
900	* inventory to the ground.	818	* inventory to the ground.
901	*/	819	*/
902	void	820	void object::destroy (bool destroy_inventory)
903	object::free (bool free_inventory)
904	{	821	{
		822	if (QUERY_FLAG (this, FLAG_FREED))
		823	return;
		824
		825	if (QUERY_FLAG (this, FLAG_FRIENDLY))
		826	remove_friendly_object (this);
		827
905	if (!QUERY_FLAG (this, FLAG_REMOVED))	828	if (!QUERY_FLAG (this, FLAG_REMOVED))
906	{	829	remove ();
907	LOG (llevDebug, "Free object called with non removed object\n");
908	dump_object (this);
909	#ifdef MANY_CORES
910	abort ();
911	#endif
912	}
913		830
914	if (QUERY_FLAG (this, FLAG_FRIENDLY))
915	{
916	LOG (llevMonster, "Warning: tried to free friendly object.\n");
917	remove_friendly_object (this);
918	}
919
920	if (QUERY_FLAG (this, FLAG_FREED))	831	SET_FLAG (this, FLAG_FREED);
921	{
922	dump_object (this);
923	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);
924	return;
925	}
926		832
927	if (more)	833	if (more)
928	{	834	{
929	more->free (free_inventory);	835	more->destroy (destroy_inventory);
930	more = 0;	836	more = 0;
931	}	837	}
932		838
933	if (inv)	839	if (inv)
934	{	840	{
935	/* Only if the space blocks everything do we not process -	841	/* Only if the space blocks everything do we not process -
936	* if some form of movement is allowed, let objects	842	* if some form of movement is allowed, let objects
937	* drop on that space.	843	* drop on that space.
938	*/	844	*/
939	if (free_inventory || !map	845	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
940	|| map->in_memory != MAP_IN_MEMORY	846	{
941	|| (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
942	{
943	object *op = inv;	847	object *op = inv;
944		848
945	while (op)	849	while (op)
946	{	850	{
947	object *tmp = op->below;	851	object *tmp = op->below;
948	remove_ob (op);
949	op->free (free_inventory);	852	op->destroy (destroy_inventory);
950	op = tmp;	853	op = tmp;
951	}	854	}
952	}	855	}
953	else	856	else
954	{ /* Put objects in inventory onto this space */	857	{ /* Put objects in inventory onto this space */
955	object *op = inv;	858	object *op = inv;
956		859
957	while (op)	860	while (op)
958	{	861	{
959	object *tmp = op->below;	862	object *tmp = op->below;
960	remove_ob (op);
961		863
		864	op->remove ();
		865
962	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	866	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
963	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	867	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
964	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	868	op->destroy ();
965	free_object (op);	869	else
966	else	870	{
967	{	871	op->x = x;
968	op->x = x;	872	op->y = y;
969	op->y = y;
970	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */	873	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
971	}	874	}
972		875
973	op = tmp;	876	op = tmp;
		877	}
		878	}
974	}	879	}
975	}	880
		881	// hack to ensure that freed objects still have a valid map
		882	{
		883	static maptile *freed_map; // freed objects are moved here to avoid crashes
		884
		885	if (!freed_map)
		886	{
		887	freed_map = new maptile;
		888
		889	freed_map->name = "/internal/freed_objects_map";
		890	freed_map->width = 3;
		891	freed_map->height = 3;
		892
		893	freed_map->allocate ();
976	}	894	}
		895
		896	map = freed_map;
		897	x = 1;
		898	y = 1;
		899	}
		900
		901	// clear those pointers that likely might have circular references to us
		902	owner = 0;
		903	enemy = 0;
		904	attacked_by = 0;
		905
		906	// only relevant for players(?), but make sure of it anyways
		907	contr = 0;
977		908
978	/* Remove object from the active list */	909	/* Remove object from the active list */
979	speed = 0;	910	speed = 0;
980	update_ob_speed (this);	911	update_ob_speed (this);
981		912
982	unlink ();	913	unlink ();
983		914
984	SET_FLAG (this, FLAG_FREED);
985
986	mortals.push_back (this);	915	mortals.push_back (this);
987	}	916	}
988		917
989	/*	918	/*
990	* sub_weight() recursively (outwards) subtracts a number from the	919	* sub_weight() recursively (outwards) subtracts a number from the
991	* weight of an object (and what is carried by it's environment(s)).	920	* weight of an object (and what is carried by it's environment(s)).
992	*/	921	*/
993		922	void
994	void sub_weight (object *op, signed long weight) {	923	sub_weight (object *op, signed long weight)
		924	{
995	while (op != NULL) {	925	while (op != NULL)
		926	{
996	if (op->type == CONTAINER) {	927	if (op->type == CONTAINER)
997	weight=(signed long)(weight*(100-op->stats.Str)/100);	928	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
998	}	929
999	op->carrying-=weight;	930	op->carrying -= weight;
1000	op = op->env;	931	op = op->env;
1001	}	932	}
1002	}	933	}
1003		934
1004	/* remove_ob(op):	935	/* op->remove ():
1005	* This function removes the object op from the linked list of objects	936	* This function removes the object op from the linked list of objects
1006	* which it is currently tied to. When this function is done, the	937	* which it is currently tied to. When this function is done, the
1007	* object will have no environment. If the object previously had an	938	* object will have no environment. If the object previously had an
1008	* environment, the x and y coordinates will be updated to	939	* environment, the x and y coordinates will be updated to
1009	* the previous environment.	940	* the previous environment.
1010	* Beware: This function is called from the editor as well!	941	* Beware: This function is called from the editor as well!
1011	*/	942	*/
1012		943	void
1013	void remove_ob(object *op) {	944	object::remove ()
		945	{
1014	object *tmp,*last=NULL;	946	object *tmp, *last = 0;
1015	object *otmp;	947	object *otmp;
1016	tag_t tag;	948
1017	int check_walk_off;	949	int check_walk_off;
1018	mapstruct *m;
1019	sint16 x,y;
1020
1021		950
1022	if(QUERY_FLAG(op,FLAG_REMOVED)) {	951	if (QUERY_FLAG (this, FLAG_REMOVED))
1023	dump_object(op);	952	return;
1024	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1025		953
1026	/* Changed it to always dump core in this case. As has been learned
1027	* in the past, trying to recover from errors almost always
1028	* make things worse, and this is a real error here - something
1029	* that should not happen.
1030	* Yes, if this was a mission critical app, trying to do something
1031	* to recover may make sense, but that is because failure of the app
1032	* may have other disastrous problems. Cf runs out of a script
1033	* so is easily enough restarted without any real problems.
1034	* MSW 2001-07-01
1035	*/
1036	abort();
1037	}
1038	if(op->more!=NULL)
1039	remove_ob(op->more);
1040
1041	SET_FLAG(op, FLAG_REMOVED);	954	SET_FLAG (this, FLAG_REMOVED);
1042		955
		956	if (more)
		957	more->remove ();
		958
1043	/*	959	/*
1044	* In this case, the object to be removed is in someones	960	* In this case, the object to be removed is in someones
1045	* inventory.	961	* inventory.
1046	*/	962	*/
1047	if(op->env!=NULL) {	963	if (env)
		964	{
1048	if(op->nrof)	965	if (nrof)
1049	sub_weight(op->env, op->weight*op->nrof);	966	sub_weight (env, weight * nrof);
1050	else	967	else
1051	sub_weight(op->env, op->weight+op->carrying);	968	sub_weight (env, weight + carrying);
1052		969
1053	/* NO_FIX_PLAYER is set when a great many changes are being	970	/* NO_FIX_PLAYER is set when a great many changes are being
1054	* made to players inventory. If set, avoiding the call	971	* made to players inventory. If set, avoiding the call
1055	* to save cpu time.	972	* to save cpu time.
1056	*/	973	*/
1057	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	974	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1058	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	975	otmp->update_stats ();
1059	fix_player(otmp);
1060		976
1061	if(op->above!=NULL)	977	if (above != NULL)
1062	op->above->below=op->below;	978	above->below = below;
1063	else	979	else
1064	op->env->inv=op->below;	980	env->inv = below;
1065		981
1066	if(op->below!=NULL)	982	if (below != NULL)
1067	op->below->above=op->above;	983	below->above = above;
1068		984
1069	/* we set up values so that it could be inserted into	985	/* we set up values so that it could be inserted into
1070	* the map, but we don't actually do that - it is up	986	* the map, but we don't actually do that - it is up
1071	* to the caller to decide what we want to do.	987	* to the caller to decide what we want to do.
		988	*/
		989	x = env->x, y = env->y;
		990	map = env->map;
		991	above = 0, below = 0;
		992	env = 0;
		993	}
		994	else if (map)
		995	{
		996	/* Re did the following section of code - it looks like it had
		997	* lots of logic for things we no longer care about
		998	*/
		999
		1000	/* link the object above us */
		1001	if (above)
		1002	above->below = below;
		1003	else
		1004	map->at (x, y).top = below; /* we were top, set new top */
		1005
		1006	/* Relink the object below us, if there is one */
		1007	if (below)
		1008	below->above = above;
		1009	else
		1010	{
		1011	/* Nothing below, which means we need to relink map object for this space
		1012	* use translated coordinates in case some oddness with map tiling is
		1013	* evident
1072	*/	1014	*/
1073	op->x=op->env->x,op->y=op->env->y;	1015	if (GET_MAP_OB (map, x, y) != this)
1074	op->map=op->env->map;	1016	{
1075	op->above=NULL,op->below=NULL;	1017	char *dump = dump_object (this);
1076	op->env=NULL;	1018	LOG (llevError,
		1019	"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);
		1020	free (dump);
		1021	dump = dump_object (GET_MAP_OB (map, x, y));
		1022	LOG (llevError, "%s\n", dump);
		1023	free (dump);
		1024	}
		1025
		1026	map->at (x, y).bottom = above; /* goes on above it. */
		1027	}
		1028
		1029	above = 0;
		1030	below = 0;
		1031
		1032	if (map->in_memory == MAP_SAVING)
1077	return;	1033	return;
1078	}
1079		1034
1080	/* If we get here, we are removing it from a map */
1081	if (op->map == NULL) return;
1082
1083	x = op->x;
1084	y = op->y;
1085	m = get_map_from_coord(op->map, &x, &y);
1086
1087	if (!m) {
1088	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1089	op->map->path, op->x, op->y);
1090	/* in old days, we used to set x and y to 0 and continue.
1091	* it seems if we get into this case, something is probablye
1092	* screwed up and should be fixed.
1093	*/
1094	abort();
1095	}
1096	if (op->map != m) {
1097	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1098	op->map->path, m->path, op->x, op->y, x, y);
1099	}
1100
1101	/* Re did the following section of code - it looks like it had
1102	* lots of logic for things we no longer care about
1103	*/
1104
1105	/* link the object above us */
1106	if (op->above)
1107	op->above->below=op->below;
1108	else
1109	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1110
1111	/* Relink the object below us, if there is one */
1112	if(op->below) {
1113	op->below->above=op->above;
1114	} else {
1115	/* Nothing below, which means we need to relink map object for this space
1116	* use translated coordinates in case some oddness with map tiling is
1117	* evident
1118	*/
1119	if(GET_MAP_OB(m,x,y)!=op) {
1120	dump_object(op);
1121	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);
1122	dump_object(GET_MAP_OB(m,x,y));
1123	LOG(llevError,"%s\n",errmsg);
1124	}
1125	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1126	}
1127	op->above=NULL;
1128	op->below=NULL;
1129
1130	if (op->map->in_memory == MAP_SAVING)
1131	return;
1132
1133	tag = op->count;
1134	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1035	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1036
1135	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1037	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1038	{
1136	/* No point updating the players look faces if he is the object	1039	/* No point updating the players look faces if he is the object
1137	* being removed.	1040	* being removed.
1138	*/	1041	*/
1139		1042
1140	if(tmp->type==PLAYER && tmp!=op) {	1043	if (tmp->type == PLAYER && tmp != this)
		1044	{
1141	/* If a container that the player is currently using somehow gets	1045	/* If a container that the player is currently using somehow gets
1142	* removed (most likely destroyed), update the player view	1046	* removed (most likely destroyed), update the player view
1143	* appropriately.	1047	* appropriately.
1144	*/	1048	*/
1145	if (tmp->container==op) {	1049	if (tmp->container == this)
		1050	{
1146	CLEAR_FLAG(op, FLAG_APPLIED);	1051	CLEAR_FLAG (this, FLAG_APPLIED);
1147	tmp->container=NULL;	1052	tmp->container = 0;
		1053	}
		1054
		1055	tmp->contr->ns->floorbox_update ();
1148	}	1056	}
1149	tmp->contr->socket.update_look=1;	1057
1150	}
1151	/* See if player moving off should effect something */	1058	/* See if player moving off should effect something */
1152	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1059	if (check_walk_off
		1060	&& ((move_type & tmp->move_off)
1153	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1061	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1154		1062	{
1155	move_apply(tmp, op, NULL);	1063	move_apply (tmp, this, 0);
		1064
1156	if (was_destroyed (op, tag)) {	1065	if (destroyed ())
1157	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1066	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1158	"leaving object\n", &tmp->name, &tmp->arch->name);
1159	}	1067	}
1160	}
1161		1068
1162	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1069	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1163		1070
1164	if(tmp->above == tmp)	1071	if (tmp->above == tmp)
1165	tmp->above = NULL;	1072	tmp->above = 0;
		1073
1166	last=tmp;	1074	last = tmp;
1167	}	1075	}
		1076
1168	/* last == NULL of there are no objects on this space */	1077	/* last == NULL of there are no objects on this space */
1169	if (last==NULL) {	1078	if (!last)
1170	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1079	map->at (x, y).flags_ = P_NEED_UPDATE;
1171	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1172	* those out anyways, and if there are any flags set right now, they won't
1173	* be correct anyways.
1174	*/
1175	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1176	update_position(op->map, op->x, op->y);
1177	}
1178	else	1080	else
1179	update_object(last, UP_OBJ_REMOVE);	1081	update_object (last, UP_OBJ_REMOVE);
1180		1082
1181	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1083	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1182	update_all_los(op->map, op->x, op->y);	1084	update_all_los (map, x, y);
1183		1085	}
1184	}	1086	}
1185		1087
1186	/*	1088	/*
1187	* merge_ob(op,top):	1089	* merge_ob(op,top):
1188	*	1090	*
1189	* This function goes through all objects below and including top, and	1091	* This function goes through all objects below and including top, and
1190	* merges op to the first matching object.	1092	* merges op to the first matching object.
1191	* If top is NULL, it is calculated.	1093	* If top is NULL, it is calculated.
1192	* Returns pointer to object if it succeded in the merge, otherwise NULL	1094	* Returns pointer to object if it succeded in the merge, otherwise NULL
1193	*/	1095	*/
1194		1096	object *
1195	object *merge_ob(object *op, object *top) {	1097	merge_ob (object *op, object *top)
		1098	{
1196	if(!op->nrof)	1099	if (!op->nrof)
1197	return 0;	1100	return 0;
		1101
1198	if(top==NULL)	1102	if (top == NULL)
1199	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1103	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1104
1200	for(;top!=NULL;top=top->below) {	1105	for (; top != NULL; top = top->below)
		1106	{
1201	if(top==op)	1107	if (top == op)
1202	continue;	1108	continue;
1203	if (CAN_MERGE(op,top))	1109
1204	{	1110	if (object::can_merge (op, top))
		1111	{
1205	top->nrof+=op->nrof;	1112	top->nrof += op->nrof;
		1113
1206	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1114	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1207	op->weight = 0; /* Don't want any adjustements now */	1115	op->weight = 0; /* Don't want any adjustements now */
1208	remove_ob(op);	1116	op->destroy ();
1209	free_object(op);
1210	return top;	1117	return top;
1211	}	1118	}
1212	}	1119	}
		1120
1213	return NULL;	1121	return 0;
1214	}	1122	}
1215		1123
1216	/*	1124	/*
1217	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1125	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1218	* job preparing multi-part monsters	1126	* job preparing multi-part monsters
1219	*/	1127	*/
		1128	object *
1220	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1129	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1130	{
1221	object* tmp;	1131	object *tmp;
		1132
1222	if (op->head)	1133	if (op->head)
1223	op=op->head;	1134	op = op->head;
		1135
1224	for (tmp=op;tmp;tmp=tmp->more){	1136	for (tmp = op; tmp; tmp = tmp->more)
		1137	{
1225	tmp->x=x+tmp->arch->clone.x;	1138	tmp->x = x + tmp->arch->clone.x;
1226	tmp->y=y+tmp->arch->clone.y;	1139	tmp->y = y + tmp->arch->clone.y;
1227	}	1140	}
		1141
1228	return insert_ob_in_map (op, m, originator, flag);	1142	return insert_ob_in_map (op, m, originator, flag);
1229	}	1143	}
1230		1144
1231	/*	1145	/*
1232	* insert_ob_in_map (op, map, originator, flag):	1146	* insert_ob_in_map (op, map, originator, flag):
1233	* This function inserts the object in the two-way linked list	1147	* This function inserts the object in the two-way linked list
…		…
1247	* new object if 'op' was merged with other object	1161	* new object if 'op' was merged with other object
1248	* NULL if 'op' was destroyed	1162	* NULL if 'op' was destroyed
1249	* just 'op' otherwise	1163	* just 'op' otherwise
1250	*/	1164	*/
1251		1165
		1166	object *
1252	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1167	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1253	{	1168	{
1254	object *tmp, *top, *floor=NULL;	1169	object *tmp, *top, *floor = NULL;
1255	sint16 x,y;	1170	sint16 x, y;
1256		1171
1257	if (QUERY_FLAG (op, FLAG_FREED)) {	1172	if (QUERY_FLAG (op, FLAG_FREED))
		1173	{
1258	LOG (llevError, "Trying to insert freed object!\n");	1174	LOG (llevError, "Trying to insert freed object!\n");
		1175	return NULL;
		1176	}
		1177
		1178	if (m == NULL)
		1179	{
		1180	char *dump = dump_object (op);
		1181	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1182	free (dump);
		1183	return op;
		1184	}
		1185
		1186	if (out_of_map (m, op->x, op->y))
		1187	{
		1188	char *dump = dump_object (op);
		1189	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
		1190	#ifdef MANY_CORES
		1191	/* Better to catch this here, as otherwise the next use of this object
		1192	* is likely to cause a crash. Better to find out where it is getting
		1193	* improperly inserted.
		1194	*/
		1195	abort ();
		1196	#endif
		1197	free (dump);
		1198	return op;
		1199	}
		1200
		1201	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1202	{
		1203	char *dump = dump_object (op);
		1204	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1205	free (dump);
		1206	return op;
		1207	}
		1208
		1209	if (op->more != NULL)
		1210	{
		1211	/* The part may be on a different map. */
		1212
		1213	object *more = op->more;
		1214
		1215	/* We really need the caller to normalize coordinates - if
		1216	* we set the map, that doesn't work if the location is within
		1217	* a map and this is straddling an edge. So only if coordinate
		1218	* is clear wrong do we normalize it.
		1219	*/
		1220	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1221	more->map = get_map_from_coord (m, &more->x, &more->y);
		1222	else if (!more->map)
		1223	{
		1224	/* For backwards compatibility - when not dealing with tiled maps,
		1225	* more->map should always point to the parent.
		1226	*/
		1227	more->map = m;
		1228	}
		1229
		1230	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1231	{
		1232	if (!op->head)
		1233	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1234
		1235	return NULL;
		1236	}
		1237	}
		1238
		1239	CLEAR_FLAG (op, FLAG_REMOVED);
		1240
		1241	/* Ideally, the caller figures this out. However, it complicates a lot
		1242	* of areas of callers (eg, anything that uses find_free_spot would now
		1243	* need extra work
		1244	*/
		1245	op->map = get_map_from_coord (m, &op->x, &op->y);
		1246	x = op->x;
		1247	y = op->y;
		1248
		1249	/* this has to be done after we translate the coordinates.
		1250	*/
		1251	if (op->nrof && !(flag & INS_NO_MERGE))
		1252	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1253	if (object::can_merge (op, tmp))
		1254	{
		1255	op->nrof += tmp->nrof;
		1256	tmp->destroy ();
		1257	}
		1258
		1259	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1260	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1261
		1262	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1263	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1264
		1265	if (flag & INS_BELOW_ORIGINATOR)
		1266	{
		1267	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1268	{
		1269	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1270	abort ();
		1271	}
		1272
		1273	op->above = originator;
		1274	op->below = originator->below;
		1275
		1276	if (op->below)
		1277	op->below->above = op;
		1278	else
		1279	op->ms ().bottom = op;
		1280
		1281	/* since *below* originator, no need to update top */
		1282	originator->below = op;
		1283	}
		1284	else
		1285	{
		1286	/* If there are other objects, then */
		1287	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1288	{
		1289	object *last = NULL;
		1290
		1291	/*
		1292	* If there are multiple objects on this space, we do some trickier handling.
		1293	* We've already dealt with merging if appropriate.
		1294	* Generally, we want to put the new object on top. But if
		1295	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1296	* floor, we want to insert above that and no further.
		1297	* Also, if there are spell objects on this space, we stop processing
		1298	* once we get to them. This reduces the need to traverse over all of
		1299	* them when adding another one - this saves quite a bit of cpu time
		1300	* when lots of spells are cast in one area. Currently, it is presumed
		1301	* that flying non pickable objects are spell objects.
		1302	*/
		1303
		1304	while (top != NULL)
		1305	{
		1306	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1307	floor = top;
		1308
		1309	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1310	{
		1311	/* We insert above top, so we want this object below this */
		1312	top = top->below;
		1313	break;
		1314	}
		1315
		1316	last = top;
		1317	top = top->above;
		1318	}
		1319
		1320	/* Don't want top to be NULL, so set it to the last valid object */
		1321	top = last;
		1322
		1323	/* We let update_position deal with figuring out what the space
		1324	* looks like instead of lots of conditions here.
		1325	* makes things faster, and effectively the same result.
		1326	*/
		1327
		1328	/* Have object 'fall below' other objects that block view.
		1329	* Unless those objects are exits, type 66
		1330	* If INS_ON_TOP is used, don't do this processing
		1331	* Need to find the object that in fact blocks view, otherwise
		1332	* stacking is a bit odd.
		1333	*/
		1334	if (!(flag & INS_ON_TOP) &&
		1335	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1336	{
		1337	for (last = top; last != floor; last = last->below)
		1338	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1339	break;
		1340	/* Check to see if we found the object that blocks view,
		1341	* and make sure we have a below pointer for it so that
		1342	* we can get inserted below this one, which requires we
		1343	* set top to the object below us.
		1344	*/
		1345	if (last && last->below && last != floor)
		1346	top = last->below;
		1347	}
		1348	} /* If objects on this space */
		1349
		1350	if (flag & INS_MAP_LOAD)
		1351	top = GET_MAP_TOP (op->map, op->x, op->y);
		1352
		1353	if (flag & INS_ABOVE_FLOOR_ONLY)
		1354	top = floor;
		1355
		1356	/* Top is the object that our object (op) is going to get inserted above.
		1357	*/
		1358
		1359	/* First object on this space */
		1360	if (!top)
		1361	{
		1362	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1363
		1364	if (op->above)
		1365	op->above->below = op;
		1366
		1367	op->below = NULL;
		1368	op->ms ().bottom = op;
		1369	}
		1370	else
		1371	{ /* get inserted into the stack above top */
		1372	op->above = top->above;
		1373
		1374	if (op->above)
		1375	op->above->below = op;
		1376
		1377	op->below = top;
		1378	top->above = op;
		1379	}
		1380
		1381	if (op->above == NULL)
		1382	op->ms ().top = op;
		1383	} /* else not INS_BELOW_ORIGINATOR */
		1384
		1385	if (op->type == PLAYER)
		1386	op->contr->do_los = 1;
		1387
		1388	/* If we have a floor, we know the player, if any, will be above
		1389	* it, so save a few ticks and start from there.
		1390	*/
		1391	if (!(flag & INS_MAP_LOAD))
		1392	if (object *pl = op->ms ().player ())
		1393	pl->contr->ns->floorbox_update ();
		1394
		1395	/* If this object glows, it may affect lighting conditions that are
		1396	* visible to others on this map. But update_all_los is really
		1397	* an inefficient way to do this, as it means los for all players
		1398	* on the map will get recalculated. The players could very well
		1399	* be far away from this change and not affected in any way -
		1400	* this should get redone to only look for players within range,
		1401	* or just updating the P_NEED_UPDATE for spaces within this area
		1402	* of effect may be sufficient.
		1403	*/
		1404	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1405	update_all_los (op->map, op->x, op->y);
		1406
		1407	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1408	update_object (op, UP_OBJ_INSERT);
		1409
		1410	/* Don't know if moving this to the end will break anything. However,
		1411	* we want to have floorbox_update called before calling this.
		1412	*
		1413	* check_move_on() must be after this because code called from
		1414	* check_move_on() depends on correct map flags (so functions like
		1415	* blocked() and wall() work properly), and these flags are updated by
		1416	* update_object().
		1417	*/
		1418
		1419	/* if this is not the head or flag has been passed, don't check walk on status */
		1420	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1421	{
		1422	if (check_move_on (op, originator))
1259	return NULL;	1423	return NULL;
1260	}
1261	if(m==NULL) {
1262	dump_object(op);
1263	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1264	return op;
1265	}
1266	if(out_of_map(m,op->x,op->y)) {
1267	dump_object(op);
1268	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1269	#ifdef MANY_CORES
1270	/* Better to catch this here, as otherwise the next use of this object
1271	* is likely to cause a crash. Better to find out where it is getting
1272	* improperly inserted.
1273	*/
1274	abort();
1275	#endif
1276	return op;
1277	}
1278	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1279	dump_object(op);
1280	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1281	return op;
1282	}
1283	if(op->more!=NULL) {
1284	/* The part may be on a different map. */
1285		1424
1286	object *more = op->more;
1287
1288	/* We really need the caller to normalize coordinates - if
1289	* we set the map, that doesn't work if the location is within
1290	* a map and this is straddling an edge. So only if coordinate
1291	* is clear wrong do we normalize it.
1292	*/
1293	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1294	more->map = get_map_from_coord(m, &more->x, &more->y);
1295	} else if (!more->map) {
1296	/* For backwards compatibility - when not dealing with tiled maps,
1297	* more->map should always point to the parent.
1298	*/
1299	more->map = m;
1300	}
1301
1302	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1303	if ( ! op->head)
1304	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1305	return NULL;
1306	}
1307	}
1308	CLEAR_FLAG(op,FLAG_REMOVED);
1309
1310	/* Ideally, the caller figures this out. However, it complicates a lot
1311	* of areas of callers (eg, anything that uses find_free_spot would now
1312	* need extra work
1313	*/
1314	op->map=get_map_from_coord(m, &op->x, &op->y);
1315	x = op->x;
1316	y = op->y;
1317
1318	/* this has to be done after we translate the coordinates.
1319	*/
1320	if(op->nrof && !(flag & INS_NO_MERGE)) {
1321	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)
1322	if (CAN_MERGE(op,tmp)) {
1323	op->nrof+=tmp->nrof;
1324	remove_ob(tmp);
1325	free_object(tmp);
1326	}
1327	}
1328
1329	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1330	CLEAR_FLAG(op, FLAG_INV_LOCKED);
1331	if (!QUERY_FLAG(op, FLAG_ALIVE))
1332	CLEAR_FLAG(op, FLAG_NO_STEAL);
1333
1334	if (flag & INS_BELOW_ORIGINATOR) {
1335	if (originator->map != op->map || originator->x != op->x ||
1336	originator->y != op->y) {
1337	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1338	abort();
1339	}
1340	op->above = originator;
1341	op->below = originator->below;
1342	if (op->below) op->below->above = op;
1343	else SET_MAP_OB(op->map, op->x, op->y, op);
1344	/* since *below* originator, no need to update top */
1345	originator->below = op;
1346	} else {
1347	/* If there are other objects, then */
1348	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1349	object *last=NULL;
1350	/*
1351	* If there are multiple objects on this space, we do some trickier handling.
1352	* We've already dealt with merging if appropriate.
1353	* Generally, we want to put the new object on top. But if
1354	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1355	* floor, we want to insert above that and no further.
1356	* Also, if there are spell objects on this space, we stop processing
1357	* once we get to them. This reduces the need to traverse over all of
1358	* them when adding another one - this saves quite a bit of cpu time
1359	* when lots of spells are cast in one area. Currently, it is presumed
1360	* that flying non pickable objects are spell objects.
1361	*/
1362
1363	while (top != NULL) {
1364	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1365	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1366	if (QUERY_FLAG(top, FLAG_NO_PICK)
1367	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1368	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1369	{
1370	/* We insert above top, so we want this object below this */
1371	top=top->below;
1372	break;
1373	}
1374	last = top;
1375	top = top->above;
1376	}
1377	/* Don't want top to be NULL, so set it to the last valid object */
1378	top = last;
1379
1380	/* We let update_position deal with figuring out what the space
1381	* looks like instead of lots of conditions here.
1382	* makes things faster, and effectively the same result.
1383	*/
1384
1385	/* Have object 'fall below' other objects that block view.
1386	* Unless those objects are exits, type 66
1387	* If INS_ON_TOP is used, don't do this processing
1388	* Need to find the object that in fact blocks view, otherwise
1389	* stacking is a bit odd.
1390	*/
1391	if (!(flag & INS_ON_TOP) &&
1392	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1393	(op->face && !op->face->visibility)) {
1394	for (last=top; last != floor; last=last->below)
1395	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1396	/* Check to see if we found the object that blocks view,
1397	* and make sure we have a below pointer for it so that
1398	* we can get inserted below this one, which requires we
1399	* set top to the object below us.
1400	*/
1401	if (last && last->below && last != floor) top=last->below;
1402	}
1403	} /* If objects on this space */
1404	if (flag & INS_MAP_LOAD)
1405	top = GET_MAP_TOP(op->map,op->x,op->y);
1406	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1407
1408	/* Top is the object that our object (op) is going to get inserted above.
1409	*/
1410
1411	/* First object on this space */
1412	if (!top) {
1413	op->above = GET_MAP_OB(op->map, op->x, op->y);
1414	if (op->above) op->above->below = op;
1415	op->below = NULL;
1416	SET_MAP_OB(op->map, op->x, op->y, op);
1417	} else { /* get inserted into the stack above top */
1418	op->above = top->above;
1419	if (op->above) op->above->below = op;
1420	op->below = top;
1421	top->above = op;
1422	}
1423	if (op->above==NULL)
1424	SET_MAP_TOP(op->map,op->x, op->y, op);
1425	} /* else not INS_BELOW_ORIGINATOR */
1426
1427	if(op->type==PLAYER)
1428	op->contr->do_los=1;
1429
1430	/* If we have a floor, we know the player, if any, will be above
1431	* it, so save a few ticks and start from there.
1432	*/
1433	if (!(flag & INS_MAP_LOAD))
1434	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1435	if (tmp->type == PLAYER)
1436	tmp->contr->socket.update_look=1;
1437	}
1438
1439	/* If this object glows, it may affect lighting conditions that are
1440	* visible to others on this map. But update_all_los is really
1441	* an inefficient way to do this, as it means los for all players
1442	* on the map will get recalculated. The players could very well
1443	* be far away from this change and not affected in any way -
1444	* this should get redone to only look for players within range,
1445	* or just updating the P_NEED_UPDATE for spaces within this area
1446	* of effect may be sufficient.
1447	*/
1448	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))
1449	update_all_los(op->map, op->x, op->y);
1450
1451
1452	/* updates flags (blocked, alive, no magic, etc) for this map space */
1453	update_object(op,UP_OBJ_INSERT);
1454
1455
1456	/* Don't know if moving this to the end will break anything. However,
1457	* we want to have update_look set above before calling this.
1458	*
1459	* check_move_on() must be after this because code called from
1460	* check_move_on() depends on correct map flags (so functions like
1461	* blocked() and wall() work properly), and these flags are updated by
1462	* update_object().
1463	*/
1464
1465	/* if this is not the head or flag has been passed, don't check walk on status */
1466
1467	if (!(flag & INS_NO_WALK_ON) && !op->head) {
1468	if (check_move_on(op, originator))
1469	return NULL;
1470
1471	/* If we are a multi part object, lets work our way through the check	1425	/* If we are a multi part object, lets work our way through the check
1472	* walk on's.	1426	* walk on's.
1473	*/	1427	*/
1474	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1428	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1475	if (check_move_on (tmp, originator))	1429	if (check_move_on (tmp, originator))
1476	return NULL;	1430	return NULL;
1477	}	1431	}
		1432
1478	return op;	1433	return op;
1479	}	1434	}
1480		1435
1481	/* this function inserts an object in the map, but if it	1436	/* this function inserts an object in the map, but if it
1482	* finds an object of its own type, it'll remove that one first.	1437	* finds an object of its own type, it'll remove that one first.
1483	* op is the object to insert it under: supplies x and the map.	1438	* op is the object to insert it under: supplies x and the map.
1484	*/	1439	*/
		1440	void
1485	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1441	replace_insert_ob_in_map (const char *arch_string, object *op)
1486	object *tmp;	1442	{
1487	object *tmp1;	1443	object *tmp, *tmp1;
1488		1444
1489	/* first search for itself and remove any old instances */	1445	/* first search for itself and remove any old instances */
1490		1446
1491	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1447	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1492	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1448	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1493	remove_ob(tmp);	1449	tmp->destroy ();
1494	free_object(tmp);
1495	}
1496	}
1497		1450
1498	tmp1=arch_to_object(find_archetype(arch_string));	1451	tmp1 = arch_to_object (archetype::find (arch_string));
1499		1452
1500		1453	tmp1->x = op->x;
1501	tmp1->x = op->x; tmp1->y = op->y;	1454	tmp1->y = op->y;
1502	insert_ob_in_map(tmp1,op->map,op,0);	1455	insert_ob_in_map (tmp1, op->map, op, 0);
1503	}	1456	}
1504		1457
1505	/*	1458	/*
1506	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1459	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1507	* is returned contains nr objects, and the remaining parts contains	1460	* is returned contains nr objects, and the remaining parts contains
1508	* the rest (or is removed and freed if that number is 0).	1461	* the rest (or is removed and freed if that number is 0).
1509	* On failure, NULL is returned, and the reason put into the	1462	* On failure, NULL is returned, and the reason put into the
1510	* global static errmsg array.	1463	* global static errmsg array.
1511	*/	1464	*/
1512		1465
		1466	object *
1513	object *get_split_ob(object *orig_ob, uint32 nr) {	1467	get_split_ob (object *orig_ob, uint32 nr)
		1468	{
1514	object *newob;	1469	object *newob;
1515	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1470	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1516		1471
1517	if(orig_ob->nrof<nr) {	1472	if (orig_ob->nrof < nr)
1518	sprintf(errmsg,"There are only %d %ss.",	1473	{
1519	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1474	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1520	return NULL;	1475	return NULL;
1521	}	1476	}
		1477
1522	newob = object_create_clone(orig_ob);	1478	newob = object_create_clone (orig_ob);
		1479
1523	if((orig_ob->nrof-=nr)<1) {	1480	if ((orig_ob->nrof -= nr) < 1)
1524	if ( ! is_removed)	1481	orig_ob->destroy (1);
1525	remove_ob(orig_ob);
1526	free_object2(orig_ob, 1);
1527	}
1528	else if ( ! is_removed) {	1482	else if (!is_removed)
		1483	{
1529	if(orig_ob->env!=NULL)	1484	if (orig_ob->env != NULL)
1530	sub_weight (orig_ob->env,orig_ob->weight*nr);	1485	sub_weight (orig_ob->env, orig_ob->weight * nr);
1531	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1486	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1487	{
1532	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1488	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1533	LOG(llevDebug,
1534	"Error, Tried to split object whose map is not in memory.\n");	1489	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1535	return NULL;	1490	return NULL;
1536	}	1491	}
1537	}	1492	}
		1493
1538	newob->nrof=nr;	1494	newob->nrof = nr;
1539		1495
1540	return newob;	1496	return newob;
1541	}	1497	}
1542		1498
1543	/*	1499	/*
1544	* decrease_ob_nr(object, number) decreases a specified number from	1500	* decrease_ob_nr(object, number) decreases a specified number from
1545	* the amount of an object. If the amount reaches 0, the object	1501	* the amount of an object. If the amount reaches 0, the object
1546	* is subsequently removed and freed.	1502	* is subsequently removed and freed.
1547	*	1503	*
1548	* Return value: 'op' if something is left, NULL if the amount reached 0	1504	* Return value: 'op' if something is left, NULL if the amount reached 0
1549	*/	1505	*/
1550		1506
		1507	object *
1551	object *decrease_ob_nr (object *op, uint32 i)	1508	decrease_ob_nr (object *op, uint32 i)
1552	{	1509	{
1553	object *tmp;	1510	object *tmp;
1554	player *pl;	1511	player *pl;
1555		1512
1556	if (i == 0) /* objects with op->nrof require this check */	1513	if (i == 0) /* objects with op->nrof require this check */
1557	return op;	1514	return op;
1558		1515
1559	if (i > op->nrof)	1516	if (i > op->nrof)
1560	i = op->nrof;	1517	i = op->nrof;
1561		1518
1562	if (QUERY_FLAG (op, FLAG_REMOVED))	1519	if (QUERY_FLAG (op, FLAG_REMOVED))
		1520	op->nrof -= i;
		1521	else if (op->env)
		1522	{
		1523	/* is this object in the players inventory, or sub container
		1524	* therein?
		1525	*/
		1526	tmp = op->in_player ();
		1527	/* nope. Is this a container the player has opened?
		1528	* If so, set tmp to that player.
		1529	* IMO, searching through all the players will mostly
		1530	* likely be quicker than following op->env to the map,
		1531	* and then searching the map for a player.
		1532	*/
		1533	if (!tmp)
		1534	{
		1535	for (pl = first_player; pl; pl = pl->next)
		1536	if (pl->ob->container == op->env)
		1537	{
		1538	tmp = pl->ob;
		1539	break;
		1540	}
		1541	}
		1542
		1543	if (i < op->nrof)
		1544	{
		1545	sub_weight (op->env, op->weight * i);
		1546	op->nrof -= i;
		1547	if (tmp)
		1548	esrv_send_item (tmp, op);
		1549	}
		1550	else
		1551	{
		1552	op->remove ();
		1553	op->nrof = 0;
		1554	if (tmp)
		1555	esrv_del_item (tmp->contr, op->count);
		1556	}
1563	{	1557	}
		1558	else
		1559	{
		1560	object *above = op->above;
		1561
		1562	if (i < op->nrof)
1564	op->nrof -= i;	1563	op->nrof -= i;
1565	}	1564	else
1566	else if (op->env != NULL)
1567	{
1568	/* is this object in the players inventory, or sub container
1569	* therein?
1570	*/
1571	tmp = is_player_inv (op->env);
1572	/* nope. Is this a container the player has opened?
1573	* If so, set tmp to that player.
1574	* IMO, searching through all the players will mostly
1575	* likely be quicker than following op->env to the map,
1576	* and then searching the map for a player.
1577	*/
1578	if (!tmp) {
1579	for (pl=first_player; pl; pl=pl->next)
1580	if (pl->ob->container == op->env) break;
1581	if (pl) tmp=pl->ob;
1582	else tmp=NULL;
1583	}	1565	{
1584
1585	if (i < op->nrof) {
1586	sub_weight (op->env, op->weight * i);
1587	op->nrof -= i;
1588	if (tmp) {
1589	esrv_send_item(tmp, op);
1590	}
1591	} else {
1592	remove_ob (op);	1566	op->remove ();
1593	op->nrof = 0;	1567	op->nrof = 0;
1594	if (tmp) {
1595	esrv_del_item(tmp->contr, op->count);
1596	}	1568	}
1597	}
1598	}
1599	else
1600	{
1601	object *above = op->above;
1602		1569
1603	if (i < op->nrof) {
1604	op->nrof -= i;
1605	} else {
1606	remove_ob (op);
1607	op->nrof = 0;
1608	}
1609	/* Since we just removed op, op->above is null */	1570	/* Since we just removed op, op->above is null */
1610	for (tmp = above; tmp != NULL; tmp = tmp->above)	1571	for (tmp = above; tmp; tmp = tmp->above)
1611	if (tmp->type == PLAYER) {	1572	if (tmp->type == PLAYER)
		1573	{
1612	if (op->nrof)	1574	if (op->nrof)
1613	esrv_send_item(tmp, op);	1575	esrv_send_item (tmp, op);
1614	else	1576	else
1615	esrv_del_item(tmp->contr, op->count);	1577	esrv_del_item (tmp->contr, op->count);
1616	}	1578	}
1617	}	1579	}
1618		1580
1619	if (op->nrof) {	1581	if (op->nrof)
1620	return op;	1582	return op;
1621	} else {	1583	else
1622	free_object (op);	1584	{
		1585	op->destroy ();
1623	return NULL;	1586	return 0;
1624	}	1587	}
1625	}	1588	}
1626		1589
1627	/*	1590	/*
1628	* add_weight(object, weight) adds the specified weight to an object,	1591	* add_weight(object, weight) adds the specified weight to an object,
1629	* and also updates how much the environment(s) is/are carrying.	1592	* and also updates how much the environment(s) is/are carrying.
1630	*/	1593	*/
1631		1594
		1595	void
1632	void add_weight (object *op, signed long weight) {	1596	add_weight (object *op, signed long weight)
		1597	{
1633	while (op!=NULL) {	1598	while (op != NULL)
		1599	{
1634	if (op->type == CONTAINER) {	1600	if (op->type == CONTAINER)
1635	weight=(signed long)(weight*(100-op->stats.Str)/100);	1601	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1636	}	1602
1637	op->carrying+=weight;	1603	op->carrying += weight;
1638	op=op->env;	1604	op = op->env;
1639	}	1605	}
1640	}	1606	}
1641		1607
		1608	object *
		1609	insert_ob_in_ob (object *op, object *where)
		1610	{
		1611	if (!where)
		1612	{
		1613	char *dump = dump_object (op);
		1614	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1615	free (dump);
		1616	return op;
		1617	}
		1618
		1619	if (where->head)
		1620	{
		1621	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1622	where = where->head;
		1623	}
		1624
		1625	return where->insert (op);
		1626	}
		1627
1642	/*	1628	/*
1643	* insert_ob_in_ob(op,environment):	1629	* env->insert (op)
1644	* This function inserts the object op in the linked list	1630	* This function inserts the object op in the linked list
1645	* inside the object environment.	1631	* inside the object environment.
1646	*	1632	*
1647	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1648	* the inventory at the last position or next to other objects of the same
1649	* type.
1650	* Frank: Now sorted by type, archetype and magic!
1651	*
1652	* The function returns now pointer to inserted item, and return value can	1633	* The function returns now pointer to inserted item, and return value can
1653	* be != op, if items are merged. -Tero	1634	* be != op, if items are merged. -Tero
1654	*/	1635	*/
1655		1636
1656	object *insert_ob_in_ob(object *op,object *where) {	1637	object *
		1638	object::insert (object *op)
		1639	{
1657	object *tmp, *otmp;	1640	object *tmp, *otmp;
1658		1641
1659	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1642	if (!QUERY_FLAG (op, FLAG_REMOVED))
1660	dump_object(op);	1643	op->remove ();
1661	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1644
1662	return op;
1663	}
1664	if(where==NULL) {
1665	dump_object(op);
1666	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1667	return op;
1668	}
1669	if (where->head) {
1670	LOG(llevDebug,
1671	"Warning: Tried to insert object wrong part of multipart object.\n");
1672	where = where->head;
1673	}
1674	if (op->more) {	1645	if (op->more)
		1646	{
1675	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1647	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1676	&op->name, op->count);
1677	return op;	1648	return op;
1678	}	1649	}
		1650
1679	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1651	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1680	CLEAR_FLAG(op, FLAG_REMOVED);	1652	CLEAR_FLAG (op, FLAG_REMOVED);
1681	if(op->nrof) {	1653	if (op->nrof)
		1654	{
1682	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1655	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1683	if ( CAN_MERGE(tmp,op) ) {	1656	if (object::can_merge (tmp, op))
		1657	{
1684	/* return the original object and remove inserted object	1658	/* return the original object and remove inserted object
1685	(client needs the original object) */	1659	(client needs the original object) */
1686	tmp->nrof += op->nrof;	1660	tmp->nrof += op->nrof;
1687	/* Weight handling gets pretty funky. Since we are adding to	1661	/* Weight handling gets pretty funky. Since we are adding to
1688	* tmp->nrof, we need to increase the weight.	1662	* tmp->nrof, we need to increase the weight.
1689	*/	1663	*/
1690	add_weight (where, op->weight*op->nrof);	1664	add_weight (this, op->weight * op->nrof);
1691	SET_FLAG(op, FLAG_REMOVED);	1665	SET_FLAG (op, FLAG_REMOVED);
1692	free_object(op); /* free the inserted object */	1666	op->destroy (); /* free the inserted object */
1693	op = tmp;	1667	op = tmp;
1694	remove_ob (op); /* and fix old object's links */	1668	op->remove (); /* and fix old object's links */
1695	CLEAR_FLAG(op, FLAG_REMOVED);	1669	CLEAR_FLAG (op, FLAG_REMOVED);
1696	break;	1670	break;
1697	}	1671	}
1698		1672
1699	/* I assume combined objects have no inventory	1673	/* I assume combined objects have no inventory
1700	* We add the weight - this object could have just been removed	1674	* We add the weight - this object could have just been removed
1701	* (if it was possible to merge). calling remove_ob will subtract	1675	* (if it was possible to merge). calling remove_ob will subtract
1702	* the weight, so we need to add it in again, since we actually do	1676	* the weight, so we need to add it in again, since we actually do
1703	* the linking below	1677	* the linking below
1704	*/	1678	*/
1705	add_weight (where, op->weight*op->nrof);	1679	add_weight (this, op->weight * op->nrof);
		1680	}
1706	} else	1681	else
1707	add_weight (where, (op->weight+op->carrying));	1682	add_weight (this, (op->weight + op->carrying));
1708		1683
1709	otmp=is_player_inv(where);	1684	otmp = this->in_player ();
1710	if (otmp&&otmp->contr!=NULL) {	1685	if (otmp && otmp->contr)
1711	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1686	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1712	fix_player(otmp);	1687	otmp->update_stats ();
1713	}
1714		1688
1715	op->map=NULL;	1689	op->map = 0;
1716	op->env=where;	1690	op->env = this;
1717	op->above=NULL;	1691	op->above = 0;
1718	op->below=NULL;	1692	op->below = 0;
1719	op->x=0,op->y=0;	1693	op->x = 0, op->y = 0;
1720		1694
1721	/* reset the light list and los of the players on the map */	1695	/* reset the light list and los of the players on the map */
1722	if((op->glow_radius!=0)&&where->map)	1696	if ((op->glow_radius != 0) && map)
1723	{	1697	{
1724	#ifdef DEBUG_LIGHTS	1698	#ifdef DEBUG_LIGHTS
1725	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1699	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1726	op->name);
1727	#endif /* DEBUG_LIGHTS */	1700	#endif /* DEBUG_LIGHTS */
1728	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1701	if (MAP_DARKNESS (map))
		1702	update_all_los (map, x, y);
1729	}	1703	}
1730		1704
1731	/* Client has no idea of ordering so lets not bother ordering it here.	1705	/* Client has no idea of ordering so lets not bother ordering it here.
1732	* It sure simplifies this function...	1706	* It sure simplifies this function...
1733	*/	1707	*/
1734	if (where->inv==NULL)	1708	if (!inv)
1735	where->inv=op;	1709	inv = op;
1736	else {	1710	else
		1711	{
1737	op->below = where->inv;	1712	op->below = inv;
1738	op->below->above = op;	1713	op->below->above = op;
1739	where->inv = op;	1714	inv = op;
1740	}	1715	}
		1716
1741	return op;	1717	return op;
1742	}	1718	}
1743		1719
1744	/*	1720	/*
1745	* Checks if any objects has a move_type that matches objects	1721	* Checks if any objects has a move_type that matches objects
…		…
1760	* MSW 2001-07-08: Check all objects on space, not just those below	1736	* MSW 2001-07-08: Check all objects on space, not just those below
1761	* object being inserted. insert_ob_in_map may not put new objects	1737	* object being inserted. insert_ob_in_map may not put new objects
1762	* on top.	1738	* on top.
1763	*/	1739	*/
1764		1740
		1741	int
1765	int check_move_on (object *op, object *originator)	1742	check_move_on (object *op, object *originator)
1766	{	1743	{
1767	object *tmp;	1744	object *tmp;
1768	tag_t tag;
1769	mapstruct *m=op->map;	1745	maptile *m = op->map;
1770	int x=op->x, y=op->y;	1746	int x = op->x, y = op->y;
		1747
1771	MoveType move_on, move_slow, move_block;	1748	MoveType move_on, move_slow, move_block;
1772		1749
1773	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1750	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1774	return 0;	1751	return 0;
1775		1752
1776	tag = op->count;
1777
1778	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1753	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1779	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1754	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1780	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1755	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1781		1756
1782	/* if nothing on this space will slow op down or be applied,	1757	/* if nothing on this space will slow op down or be applied,
1783	* no need to do checking below. have to make sure move_type	1758	* no need to do checking below. have to make sure move_type
1784	* is set, as lots of objects don't have it set - we treat that	1759	* is set, as lots of objects don't have it set - we treat that
1785	* as walking.	1760	* as walking.
1786	*/	1761	*/
1787	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1762	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1788	return 0;	1763	return 0;
1789		1764
1790	/* This is basically inverse logic of that below - basically,	1765	/* This is basically inverse logic of that below - basically,
1791	* if the object can avoid the move on or slow move, they do so,	1766	* if the object can avoid the move on or slow move, they do so,
1792	* but can't do it if the alternate movement they are using is	1767	* but can't do it if the alternate movement they are using is
1793	* blocked. Logic on this seems confusing, but does seem correct.	1768	* blocked. Logic on this seems confusing, but does seem correct.
1794	*/	1769	*/
1795	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1770	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1796	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1771	return 0;
1797		1772
1798	/* The objects have to be checked from top to bottom.	1773	/* The objects have to be checked from top to bottom.
1799	* Hence, we first go to the top:	1774	* Hence, we first go to the top:
1800	*/	1775	*/
1801		1776
1802	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1777	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1803	tmp->above!=NULL; tmp=tmp->above) {	1778	{
1804	/* Trim the search when we find the first other spell effect	1779	/* Trim the search when we find the first other spell effect
1805	* this helps performance so that if a space has 50 spell objects,	1780	* this helps performance so that if a space has 50 spell objects,
1806	* we don't need to check all of them.	1781	* we don't need to check all of them.
1807	*/	1782	*/
1808	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1783	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1784	break;
		1785	}
		1786
		1787	for (; tmp; tmp = tmp->below)
1809	}	1788	{
1810	for(;tmp!=NULL; tmp=tmp->below) {	1789	if (tmp == op)
1811	if (tmp == op) continue; /* Can't apply yourself */	1790	continue; /* Can't apply yourself */
1812		1791
1813	/* Check to see if one of the movement types should be slowed down.	1792	/* Check to see if one of the movement types should be slowed down.
1814	* Second check makes sure that the movement types not being slowed	1793	* Second check makes sure that the movement types not being slowed
1815	* (~slow_move) is not blocked on this space - just because the	1794	* (~slow_move) is not blocked on this space - just because the
1816	* space doesn't slow down swimming (for example), if you can't actually	1795	* space doesn't slow down swimming (for example), if you can't actually
1817	* swim on that space, can't use it to avoid the penalty.	1796	* swim on that space, can't use it to avoid the penalty.
1818	*/	1797	*/
1819	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1798	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1799	{
1820	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1800	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1821	((op->move_type & tmp->move_slow) &&
1822	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1801	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1802	{
1823		1803
1824	float diff;	1804	float
1825
1826	diff = tmp->move_slow_penalty*FABS(op->speed);	1805	diff = tmp->move_slow_penalty * FABS (op->speed);
		1806
1827	if (op->type == PLAYER) {	1807	if (op->type == PLAYER)
1828	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1808	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1829	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1809	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1830	diff /= 4.0;	1810	diff /= 4.0;
1831	}	1811
1832	}
1833	op->speed_left -= diff;	1812	op->speed_left -= diff;
1834	}	1813	}
1835	}	1814	}
1836		1815
1837	/* Basically same logic as above, except now for actual apply. */	1816	/* Basically same logic as above, except now for actual apply. */
1838	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1817	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1839	((op->move_type & tmp->move_on) &&
1840	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1818	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1841		1819	{
1842	move_apply(tmp, op, originator);	1820	move_apply (tmp, op, originator);
		1821
1843	if (was_destroyed (op, tag))	1822	if (op->destroyed ())
1844	return 1;	1823	return 1;
1845		1824
1846	/* what the person/creature stepped onto has moved the object	1825	/* what the person/creature stepped onto has moved the object
1847	* someplace new. Don't process any further - if we did,	1826	* someplace new. Don't process any further - if we did,
1848	* have a feeling strange problems would result.	1827	* have a feeling strange problems would result.
1849	*/	1828	*/
1850	if (op->map != m || op->x != x || op->y != y) return 0;	1829	if (op->map != m || op->x != x || op->y != y)
		1830	return 0;
1851	}	1831	}
1852	}	1832	}
		1833
1853	return 0;	1834	return 0;
1854	}	1835	}
1855		1836
1856	/*	1837	/*
1857	* present_arch(arch, map, x, y) searches for any objects with	1838	* present_arch(arch, map, x, y) searches for any objects with
1858	* a matching archetype at the given map and coordinates.	1839	* a matching archetype at the given map and coordinates.
1859	* The first matching object is returned, or NULL if none.	1840	* The first matching object is returned, or NULL if none.
1860	*/	1841	*/
1861		1842
		1843	object *
1862	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1844	present_arch (const archetype *at, maptile *m, int x, int y)
		1845	{
1863	object *tmp;	1846	object *
		1847	tmp;
		1848
1864	if(m==NULL || out_of_map(m,x,y)) {	1849	if (m == NULL || out_of_map (m, x, y))
		1850	{
1865	LOG(llevError,"Present_arch called outside map.\n");	1851	LOG (llevError, "Present_arch called outside map.\n");
1866	return NULL;	1852	return NULL;
1867	}	1853	}
1868	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1854	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1869	if(tmp->arch == at)	1855	if (tmp->arch == at)
1870	return tmp;	1856	return tmp;
1871	return NULL;	1857	return NULL;
1872	}	1858	}
1873		1859
1874	/*	1860	/*
1875	* present(type, map, x, y) searches for any objects with	1861	* present(type, map, x, y) searches for any objects with
1876	* a matching type variable at the given map and coordinates.	1862	* a matching type variable at the given map and coordinates.
1877	* The first matching object is returned, or NULL if none.	1863	* The first matching object is returned, or NULL if none.
1878	*/	1864	*/
1879		1865
		1866	object *
1880	object *present(unsigned char type,mapstruct *m, int x,int y) {	1867	present (unsigned char type, maptile *m, int x, int y)
		1868	{
1881	object *tmp;	1869	object *
		1870	tmp;
		1871
1882	if(out_of_map(m,x,y)) {	1872	if (out_of_map (m, x, y))
		1873	{
1883	LOG(llevError,"Present called outside map.\n");	1874	LOG (llevError, "Present called outside map.\n");
1884	return NULL;	1875	return NULL;
1885	}	1876	}
1886	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1877	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1887	if(tmp->type==type)	1878	if (tmp->type == type)
1888	return tmp;	1879	return tmp;
1889	return NULL;	1880	return NULL;
1890	}	1881	}
1891		1882
1892	/*	1883	/*
1893	* present_in_ob(type, object) searches for any objects with	1884	* present_in_ob(type, object) searches for any objects with
1894	* a matching type variable in the inventory of the given object.	1885	* a matching type variable in the inventory of the given object.
1895	* The first matching object is returned, or NULL if none.	1886	* The first matching object is returned, or NULL if none.
1896	*/	1887	*/
1897		1888
		1889	object *
1898	object *present_in_ob(unsigned char type, const object *op) {	1890	present_in_ob (unsigned char type, const object *op)
		1891	{
1899	object *tmp;	1892	object *
		1893	tmp;
		1894
1900	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1895	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1901	if(tmp->type==type)	1896	if (tmp->type == type)
1902	return tmp;	1897	return tmp;
1903	return NULL;	1898	return NULL;
1904	}	1899	}
1905		1900
1906	/*	1901	/*
…		…
1916	* the object name, not the archetype name. this is so that the	1911	* the object name, not the archetype name. this is so that the
1917	* spell code can use one object type (force), but change it's name	1912	* spell code can use one object type (force), but change it's name
1918	* to be unique.	1913	* to be unique.
1919	*/	1914	*/
1920		1915
		1916	object *
1921	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1917	present_in_ob_by_name (int type, const char *str, const object *op)
		1918	{
1922	object *tmp;	1919	object *
		1920	tmp;
1923		1921
1924	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1922	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1923	{
1925	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1924	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1926	return tmp;	1925	return tmp;
1927	}	1926	}
1928	return NULL;	1927	return NULL;
1929	}	1928	}
1930		1929
1931	/*	1930	/*
1932	* present_arch_in_ob(archetype, object) searches for any objects with	1931	* present_arch_in_ob(archetype, object) searches for any objects with
1933	* a matching archetype in the inventory of the given object.	1932	* a matching archetype in the inventory of the given object.
1934	* The first matching object is returned, or NULL if none.	1933	* The first matching object is returned, or NULL if none.
1935	*/	1934	*/
1936		1935
		1936	object *
1937	object *present_arch_in_ob(const archetype *at, const object *op) {	1937	present_arch_in_ob (const archetype *at, const object *op)
		1938	{
1938	object *tmp;	1939	object *
		1940	tmp;
		1941
1939	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1942	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1940	if( tmp->arch == at)	1943	if (tmp->arch == at)
1941	return tmp;	1944	return tmp;
1942	return NULL;	1945	return NULL;
1943	}	1946	}
1944		1947
1945	/*	1948	/*
1946	* activate recursively a flag on an object inventory	1949	* activate recursively a flag on an object inventory
1947	*/	1950	*/
		1951	void
1948	void flag_inv(object*op, int flag){	1952	flag_inv (object *op, int flag)
		1953	{
1949	object *tmp;	1954	object *
		1955	tmp;
		1956
1950	if(op->inv)	1957	if (op->inv)
1951	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1958	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1959	{
1952	SET_FLAG(tmp, flag);	1960	SET_FLAG (tmp, flag);
1953	flag_inv(tmp,flag);	1961	flag_inv (tmp, flag);
1954	}	1962	}
1955	}/*	1963	} /*
1956	* desactivate recursively a flag on an object inventory	1964	* desactivate recursively a flag on an object inventory
1957	*/	1965	*/
		1966	void
1958	void unflag_inv(object*op, int flag){	1967	unflag_inv (object *op, int flag)
		1968	{
1959	object *tmp;	1969	object *
		1970	tmp;
		1971
1960	if(op->inv)	1972	if (op->inv)
1961	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1973	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1974	{
1962	CLEAR_FLAG(tmp, flag);	1975	CLEAR_FLAG (tmp, flag);
1963	unflag_inv(tmp,flag);	1976	unflag_inv (tmp, flag);
1964	}	1977	}
1965	}	1978	}
1966		1979
1967	/*	1980	/*
1968	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1981	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1969	* all it's inventory (recursively).	1982	* all it's inventory (recursively).
1970	* If checksums are used, a player will get set_cheat called for	1983	* If checksums are used, a player will get set_cheat called for
1971	* him/her-self and all object carried by a call to this function.	1984	* him/her-self and all object carried by a call to this function.
1972	*/	1985	*/
1973		1986
		1987	void
1974	void set_cheat(object *op) {	1988	set_cheat (object *op)
		1989	{
1975	SET_FLAG(op, FLAG_WAS_WIZ);	1990	SET_FLAG (op, FLAG_WAS_WIZ);
1976	flag_inv(op, FLAG_WAS_WIZ);	1991	flag_inv (op, FLAG_WAS_WIZ);
1977	}	1992	}
1978		1993
1979	/*	1994	/*
1980	* find_free_spot(object, map, x, y, start, stop) will search for	1995	* find_free_spot(object, map, x, y, start, stop) will search for
1981	* a spot at the given map and coordinates which will be able to contain	1996	* a spot at the given map and coordinates which will be able to contain
…		…
1996	* to know if the space in question will block the object. We can't use	2011	* to know if the space in question will block the object. We can't use
1997	* the archetype because that isn't correct if the monster has been	2012	* the archetype because that isn't correct if the monster has been
1998	* customized, changed states, etc.	2013	* customized, changed states, etc.
1999	*/	2014	*/
2000		2015
		2016	int
2001	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2017	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2018	{
		2019	int
		2020	i,
2002	int i,index=0, flag;	2021	index = 0, flag;
		2022	static int
2003	static int altern[SIZEOFFREE];	2023	altern[SIZEOFFREE];
2004		2024
2005	for(i=start;i<stop;i++) {	2025	for (i = start; i < stop; i++)
		2026	{
2006	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2027	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2007	if(!flag)	2028	if (!flag)
2008	altern[index++]=i;	2029	altern[index++] = i;
2009		2030
2010	/* Basically, if we find a wall on a space, we cut down the search size.	2031	/* Basically, if we find a wall on a space, we cut down the search size.
2011	* In this way, we won't return spaces that are on another side of a wall.	2032	* In this way, we won't return spaces that are on another side of a wall.
2012	* This mostly work, but it cuts down the search size in all directions -	2033	* This mostly work, but it cuts down the search size in all directions -
2013	* if the space being examined only has a wall to the north and empty	2034	* if the space being examined only has a wall to the north and empty
2014	* spaces in all the other directions, this will reduce the search space	2035	* spaces in all the other directions, this will reduce the search space
2015	* to only the spaces immediately surrounding the target area, and	2036	* to only the spaces immediately surrounding the target area, and
2016	* won't look 2 spaces south of the target space.	2037	* won't look 2 spaces south of the target space.
2017	*/	2038	*/
2018	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2039	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2019	stop=maxfree[i];	2040	stop = maxfree[i];
2020	}	2041	}
2021	if(!index) return -1;	2042
		2043	if (!index)
		2044	return -1;
		2045
2022	return altern[RANDOM()%index];	2046	return altern[RANDOM () % index];
2023	}	2047	}
2024		2048
2025	/*	2049	/*
2026	* find_first_free_spot(archetype, mapstruct, x, y) works like	2050	* find_first_free_spot(archetype, maptile, x, y) works like
2027	* find_free_spot(), but it will search max number of squares.	2051	* find_free_spot(), but it will search max number of squares.
2028	* But it will return the first available spot, not a random choice.	2052	* But it will return the first available spot, not a random choice.
2029	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2053	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2030	*/	2054	*/
2031		2055
		2056	int
2032	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2057	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2058	{
		2059	int
2033	int i;	2060	i;
		2061
2034	for(i=0;i<SIZEOFFREE;i++) {	2062	for (i = 0; i < SIZEOFFREE; i++)
		2063	{
2035	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2064	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2036	return i;	2065	return i;
2037	}	2066	}
2038	return -1;	2067	return -1;
2039	}	2068	}
2040		2069
2041	/*	2070	/*
2042	* The function permute(arr, begin, end) randomly reorders the array	2071	* The function permute(arr, begin, end) randomly reorders the array
2043	* arr[begin..end-1].	2072	* arr[begin..end-1].
2044	*/	2073	*/
		2074	static void
2045	static void permute(int *arr, int begin, int end)	2075	permute (int *arr, int begin, int end)
2046	{	2076	{
2047	int i, j, tmp, len;	2077	int
		2078	i,
		2079	j,
		2080	tmp,
		2081	len;
2048		2082
2049	len = end-begin;	2083	len = end - begin;
2050	for(i = begin; i < end; i++)	2084	for (i = begin; i < end; i++)
2051	{	2085	{
2052	j = begin+RANDOM()%len;	2086	j = begin + RANDOM () % len;
2053		2087
2054	tmp = arr[i];	2088	tmp = arr[i];
2055	arr[i] = arr[j];	2089	arr[i] = arr[j];
2056	arr[j] = tmp;	2090	arr[j] = tmp;
2057	}	2091	}
2058	}	2092	}
2059		2093
2060	/* new function to make monster searching more efficient, and effective!	2094	/* new function to make monster searching more efficient, and effective!
2061	* This basically returns a randomized array (in the passed pointer) of	2095	* This basically returns a randomized array (in the passed pointer) of
2062	* the spaces to find monsters. In this way, it won't always look for	2096	* the spaces to find monsters. In this way, it won't always look for
2063	* monsters to the north first. However, the size of the array passed	2097	* monsters to the north first. However, the size of the array passed
2064	* covers all the spaces, so within that size, all the spaces within	2098	* covers all the spaces, so within that size, all the spaces within
2065	* the 3x3 area will be searched, just not in a predictable order.	2099	* the 3x3 area will be searched, just not in a predictable order.
2066	*/	2100	*/
		2101	void
2067	void get_search_arr(int *search_arr)	2102	get_search_arr (int *search_arr)
2068	{	2103	{
		2104	int
2069	int i;	2105	i;
2070		2106
2071	for(i = 0; i < SIZEOFFREE; i++)	2107	for (i = 0; i < SIZEOFFREE; i++)
2072	{	2108	{
2073	search_arr[i] = i;	2109	search_arr[i] = i;
2074	}	2110	}
2075		2111
2076	permute(search_arr, 1, SIZEOFFREE1+1);	2112	permute (search_arr, 1, SIZEOFFREE1 + 1);
2077	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2113	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2078	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2114	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2079	}	2115	}
2080		2116
2081	/*	2117	/*
2082	* find_dir(map, x, y, exclude) will search some close squares in the	2118	* find_dir(map, x, y, exclude) will search some close squares in the
2083	* given map at the given coordinates for live objects.	2119	* given map at the given coordinates for live objects.
…		…
2089	* is actually want is going to try and move there. We need this info	2125	* is actually want is going to try and move there. We need this info
2090	* because we have to know what movement the thing looking to move	2126	* because we have to know what movement the thing looking to move
2091	* there is capable of.	2127	* there is capable of.
2092	*/	2128	*/
2093		2129
		2130	int
2094	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2131	find_dir (maptile *m, int x, int y, object *exclude)
		2132	{
		2133	int
		2134	i,
2095	int i,max=SIZEOFFREE, mflags;	2135	max = SIZEOFFREE, mflags;
		2136
2096	sint16 nx, ny;	2137	sint16 nx, ny;
2097	object *tmp;	2138	object *
2098	mapstruct *mp;	2139	tmp;
		2140	maptile *
		2141	mp;
		2142
2099	MoveType blocked, move_type;	2143	MoveType blocked, move_type;
2100		2144
2101	if (exclude && exclude->head) {	2145	if (exclude && exclude->head)
		2146	{
2102	exclude = exclude->head;	2147	exclude = exclude->head;
2103	move_type = exclude->move_type;	2148	move_type = exclude->move_type;
2104	} else {	2149	}
		2150	else
		2151	{
2105	/* If we don't have anything, presume it can use all movement types. */	2152	/* If we don't have anything, presume it can use all movement types. */
2106	move_type=MOVE_ALL;	2153	move_type = MOVE_ALL;
		2154	}
		2155
		2156	for (i = 1; i < max; i++)
2107	}	2157	{
2108
2109	for(i=1;i<max;i++) {
2110	mp = m;	2158	mp = m;
2111	nx = x + freearr_x[i];	2159	nx = x + freearr_x[i];
2112	ny = y + freearr_y[i];	2160	ny = y + freearr_y[i];
2113		2161
2114	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2162	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2163
2115	if (mflags & P_OUT_OF_MAP) {	2164	if (mflags & P_OUT_OF_MAP)
		2165	max = maxfree[i];
		2166	else
		2167	{
		2168	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
		2169
		2170	if ((move_type & blocked) == move_type)
2116	max = maxfree[i];	2171	max = maxfree[i];
2117	} else {
2118	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2119
2120	if ((move_type & blocked) == move_type) {
2121	max=maxfree[i];
2122	} else if (mflags & P_IS_ALIVE) {	2172	else if (mflags & P_IS_ALIVE)
		2173	{
2123	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2174	for (tmp = GET_MAP_OB (mp, nx, ny); tmp; tmp = tmp->above)
2124	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2175	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
2125	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {
2126	break;	2176	break;
2127	}	2177
2128	}
2129	if(tmp) {	2178	if (tmp)
2130	return freedir[i];	2179	return freedir[i];
2131	}
2132	}	2180	}
2133	}	2181	}
2134	}	2182	}
		2183
2135	return 0;	2184	return 0;
2136	}	2185	}
2137		2186
2138	/*	2187	/*
2139	* distance(object 1, object 2) will return the square of the	2188	* distance(object 1, object 2) will return the square of the
2140	* distance between the two given objects.	2189	* distance between the two given objects.
2141	*/	2190	*/
2142		2191
		2192	int
2143	int distance(const object *ob1, const object *ob2) {	2193	distance (const object *ob1, const object *ob2)
		2194	{
2144	int i;	2195	int i;
2145	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2196
2146	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2197	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2147	return i;	2198	return i;
2148	}	2199	}
2149		2200
2150	/*	2201	/*
2151	* find_dir_2(delta-x,delta-y) will return a direction in which	2202	* find_dir_2(delta-x,delta-y) will return a direction in which
2152	* an object which has subtracted the x and y coordinates of another	2203	* an object which has subtracted the x and y coordinates of another
2153	* object, needs to travel toward it.	2204	* object, needs to travel toward it.
2154	*/	2205	*/
2155		2206
		2207	int
2156	int find_dir_2(int x, int y) {	2208	find_dir_2 (int x, int y)
		2209	{
2157	int q;	2210	int q;
2158		2211
2159	if(y)	2212	if (y)
2160	q=x*100/y;	2213	q = x * 100 / y;
2161	else if (x)	2214	else if (x)
2162	q= -300*x;	2215	q = -300 * x;
2163	else	2216	else
2164	return 0;	2217	return 0;
2165		2218
2166	if(y>0) {	2219	if (y > 0)
		2220	{
2167	if(q < -242)	2221	if (q < -242)
2168	return 3 ;	2222	return 3;
2169	if (q < -41)	2223	if (q < -41)
2170	return 2 ;	2224	return 2;
2171	if (q < 41)	2225	if (q < 41)
2172	return 1 ;	2226	return 1;
2173	if (q < 242)	2227	if (q < 242)
2174	return 8 ;	2228	return 8;
2175	return 7 ;	2229	return 7;
2176	}	2230	}
2177		2231
2178	if (q < -242)	2232	if (q < -242)
2179	return 7 ;	2233	return 7;
2180	if (q < -41)	2234	if (q < -41)
2181	return 6 ;	2235	return 6;
2182	if (q < 41)	2236	if (q < 41)
2183	return 5 ;	2237	return 5;
2184	if (q < 242)	2238	if (q < 242)
2185	return 4 ;	2239	return 4;
2186		2240
2187	return 3 ;	2241	return 3;
2188	}	2242	}
2189		2243
2190	/*	2244	/*
2191	* absdir(int): Returns a number between 1 and 8, which represent	2245	* absdir(int): Returns a number between 1 and 8, which represent
2192	* the "absolute" direction of a number (it actually takes care of	2246	* the "absolute" direction of a number (it actually takes care of
2193	* "overflow" in previous calculations of a direction).	2247	* "overflow" in previous calculations of a direction).
2194	*/	2248	*/
2195		2249
		2250	int
2196	int absdir(int d) {	2251	absdir (int d)
2197	while(d<1) d+=8;	2252	{
2198	while(d>8) d-=8;	2253	while (d < 1)
		2254	d += 8;
		2255	while (d > 8)
		2256	d -= 8;
2199	return d;	2257	return d;
2200	}	2258	}
2201		2259
2202	/*	2260	/*
2203	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2261	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2204	* between two directions (which are expected to be absolute (see absdir())	2262	* between two directions (which are expected to be absolute (see absdir())
2205	*/	2263	*/
2206		2264
		2265	int
2207	int dirdiff(int dir1, int dir2) {	2266	dirdiff (int dir1, int dir2)
		2267	{
2208	int d;	2268	int
		2269	d;
		2270
2209	d = abs(dir1 - dir2);	2271	d = abs (dir1 - dir2);
2210	if(d>4)	2272	if (d > 4)
2211	d = 8 - d;	2273	d = 8 - d;
2212	return d;	2274	return d;
2213	}	2275	}
2214		2276
2215	/* peterm:	2277	/* peterm:
…		…
2220	* direction 4, 14, or 16 to get back to where we are.	2282	* direction 4, 14, or 16 to get back to where we are.
2221	* Moved from spell_util.c to object.c with the other related direction	2283	* Moved from spell_util.c to object.c with the other related direction
2222	* functions.	2284	* functions.
2223	*/	2285	*/
2224		2286
		2287	int
2225	int reduction_dir[SIZEOFFREE][3] = {	2288	reduction_dir[SIZEOFFREE][3] = {
2226	{0,0,0}, /* 0 */	2289	{0, 0, 0}, /* 0 */
2227	{0,0,0}, /* 1 */	2290	{0, 0, 0}, /* 1 */
2228	{0,0,0}, /* 2 */	2291	{0, 0, 0}, /* 2 */
2229	{0,0,0}, /* 3 */	2292	{0, 0, 0}, /* 3 */
2230	{0,0,0}, /* 4 */	2293	{0, 0, 0}, /* 4 */
2231	{0,0,0}, /* 5 */	2294	{0, 0, 0}, /* 5 */
2232	{0,0,0}, /* 6 */	2295	{0, 0, 0}, /* 6 */
2233	{0,0,0}, /* 7 */	2296	{0, 0, 0}, /* 7 */
2234	{0,0,0}, /* 8 */	2297	{0, 0, 0}, /* 8 */
2235	{8,1,2}, /* 9 */	2298	{8, 1, 2}, /* 9 */
2236	{1,2,-1}, /* 10 */	2299	{1, 2, -1}, /* 10 */
2237	{2,10,12}, /* 11 */	2300	{2, 10, 12}, /* 11 */
2238	{2,3,-1}, /* 12 */	2301	{2, 3, -1}, /* 12 */
2239	{2,3,4}, /* 13 */	2302	{2, 3, 4}, /* 13 */
2240	{3,4,-1}, /* 14 */	2303	{3, 4, -1}, /* 14 */
2241	{4,14,16}, /* 15 */	2304	{4, 14, 16}, /* 15 */
2242	{5,4,-1}, /* 16 */	2305	{5, 4, -1}, /* 16 */
2243	{4,5,6}, /* 17 */	2306	{4, 5, 6}, /* 17 */
2244	{6,5,-1}, /* 18 */	2307	{6, 5, -1}, /* 18 */
2245	{6,20,18}, /* 19 */	2308	{6, 20, 18}, /* 19 */
2246	{7,6,-1}, /* 20 */	2309	{7, 6, -1}, /* 20 */
2247	{6,7,8}, /* 21 */	2310	{6, 7, 8}, /* 21 */
2248	{7,8,-1}, /* 22 */	2311	{7, 8, -1}, /* 22 */
2249	{8,22,24}, /* 23 */	2312	{8, 22, 24}, /* 23 */
2250	{8,1,-1}, /* 24 */	2313	{8, 1, -1}, /* 24 */
2251	{24,9,10}, /* 25 */	2314	{24, 9, 10}, /* 25 */
2252	{9,10,-1}, /* 26 */	2315	{9, 10, -1}, /* 26 */
2253	{10,11,-1}, /* 27 */	2316	{10, 11, -1}, /* 27 */
2254	{27,11,29}, /* 28 */	2317	{27, 11, 29}, /* 28 */
2255	{11,12,-1}, /* 29 */	2318	{11, 12, -1}, /* 29 */
2256	{12,13,-1}, /* 30 */	2319	{12, 13, -1}, /* 30 */
2257	{12,13,14}, /* 31 */	2320	{12, 13, 14}, /* 31 */
2258	{13,14,-1}, /* 32 */	2321	{13, 14, -1}, /* 32 */
2259	{14,15,-1}, /* 33 */	2322	{14, 15, -1}, /* 33 */
2260	{33,15,35}, /* 34 */	2323	{33, 15, 35}, /* 34 */
2261	{16,15,-1}, /* 35 */	2324	{16, 15, -1}, /* 35 */
2262	{17,16,-1}, /* 36 */	2325	{17, 16, -1}, /* 36 */
2263	{18,17,16}, /* 37 */	2326	{18, 17, 16}, /* 37 */
2264	{18,17,-1}, /* 38 */	2327	{18, 17, -1}, /* 38 */
2265	{18,19,-1}, /* 39 */	2328	{18, 19, -1}, /* 39 */
2266	{41,19,39}, /* 40 */	2329	{41, 19, 39}, /* 40 */
2267	{19,20,-1}, /* 41 */	2330	{19, 20, -1}, /* 41 */
2268	{20,21,-1}, /* 42 */	2331	{20, 21, -1}, /* 42 */
2269	{20,21,22}, /* 43 */	2332	{20, 21, 22}, /* 43 */
2270	{21,22,-1}, /* 44 */	2333	{21, 22, -1}, /* 44 */
2271	{23,22,-1}, /* 45 */	2334	{23, 22, -1}, /* 45 */
2272	{45,47,23}, /* 46 */	2335	{45, 47, 23}, /* 46 */
2273	{23,24,-1}, /* 47 */	2336	{23, 24, -1}, /* 47 */
2274	{24,9,-1}}; /* 48 */	2337	{24, 9, -1}
		2338	}; /* 48 */
2275		2339
2276	/* Recursive routine to step back and see if we can	2340	/* Recursive routine to step back and see if we can
2277	* find a path to that monster that we found. If not,	2341	* find a path to that monster that we found. If not,
2278	* we don't bother going toward it. Returns 1 if we	2342	* we don't bother going toward it. Returns 1 if we
2279	* can see a direct way to get it	2343	* can see a direct way to get it
2280	* Modified to be map tile aware -.MSW	2344	* Modified to be map tile aware -.MSW
2281	*/	2345	*/
2282		2346	int
2283
2284	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2347	can_see_monsterP (maptile *m, int x, int y, int dir)
		2348	{
2285	sint16 dx, dy;	2349	sint16 dx, dy;
2286	int mflags;	2350	int mflags;
2287		2351
		2352	if (dir < 0)
2288	if(dir<0) return 0; /* exit condition: invalid direction */	2353	return 0; /* exit condition: invalid direction */
2289		2354
2290	dx = x + freearr_x[dir];	2355	dx = x + freearr_x[dir];
2291	dy = y + freearr_y[dir];	2356	dy = y + freearr_y[dir];
2292		2357
2293	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2358	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2294		2359
2295	/* This functional arguably was incorrect before - it was	2360	/* This functional arguably was incorrect before - it was
2296	* checking for P_WALL - that was basically seeing if	2361	* checking for P_WALL - that was basically seeing if
2297	* we could move to the monster - this is being more	2362	* we could move to the monster - this is being more
2298	* literal on if we can see it. To know if we can actually	2363	* literal on if we can see it. To know if we can actually
2299	* move to the monster, we'd need the monster passed in or	2364	* move to the monster, we'd need the monster passed in or
2300	* at least its move type.	2365	* at least its move type.
2301	*/	2366	*/
2302	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2367	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2368	return 0;
2303		2369
2304	/* yes, can see. */	2370	/* yes, can see. */
2305	if(dir < 9) return 1;	2371	if (dir < 9)
		2372	return 1;
		2373
2306	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2374	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2307	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2375	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2308	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2376	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2309	}	2377	}
2310		2378
2311
2312
2313	/*	2379	/*
2314	* can_pick(picker, item): finds out if an object is possible to be	2380	* can_pick(picker, item): finds out if an object is possible to be
2315	* picked up by the picker. Returnes 1 if it can be	2381	* picked up by the picker. Returnes 1 if it can be
2316	* picked up, otherwise 0.	2382	* picked up, otherwise 0.
2317	*	2383	*
…		…
2319	* core dumps if they do.	2385	* core dumps if they do.
2320	*	2386	*
2321	* Add a check so we can't pick up invisible objects (0.93.8)	2387	* Add a check so we can't pick up invisible objects (0.93.8)
2322	*/	2388	*/
2323		2389
		2390	int
2324	int can_pick(const object *who, const object *item) {	2391	can_pick (const object *who, const object *item)
		2392	{
2325	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2393	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2326	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2394	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2327	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2395	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2328	(who->type==PLAYER||item->weight<who->weight/3));
2329	}	2396	}
2330
2331		2397
2332	/*	2398	/*
2333	* create clone from object to another	2399	* create clone from object to another
2334	*/	2400	*/
		2401	object *
2335	object *object_create_clone (object *asrc) {	2402	object_create_clone (object *asrc)
		2403	{
2336	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2404	object *dst = 0, *tmp, *src, *part, *prev, *item;
2337		2405
2338	if(!asrc) return NULL;	2406	if (!asrc)
		2407	return 0;
		2408
2339	src = asrc;	2409	src = asrc;
2340	if(src->head)	2410	if (src->head)
2341	src = src->head;	2411	src = src->head;
2342		2412
2343	prev = NULL;	2413	prev = 0;
2344	for(part = src; part; part = part->more) {	2414	for (part = src; part; part = part->more)
2345	tmp = get_object();	2415	{
2346	copy_object(part,tmp);	2416	tmp = part->clone ();
2347	tmp->x -= src->x;	2417	tmp->x -= src->x;
2348	tmp->y -= src->y;	2418	tmp->y -= src->y;
		2419
2349	if(!part->head) {	2420	if (!part->head)
		2421	{
2350	dst = tmp;	2422	dst = tmp;
2351	tmp->head = NULL;	2423	tmp->head = 0;
		2424	}
2352	} else {	2425	else
2353	tmp->head = dst;	2426	tmp->head = dst;
2354	}	2427
2355	tmp->more = NULL;	2428	tmp->more = 0;
		2429
2356	if(prev)	2430	if (prev)
2357	prev->more = tmp;	2431	prev->more = tmp;
		2432
2358	prev = tmp;	2433	prev = tmp;
2359	}	2434	}
2360	/*** copy inventory ***/	2435
2361	for(item = src->inv; item; item = item->below) {	2436	for (item = src->inv; item; item = item->below)
2362	(void) insert_ob_in_ob(object_create_clone(item),dst);	2437	insert_ob_in_ob (object_create_clone (item), dst);
2363	}
2364		2438
2365	return dst;	2439	return dst;
2366	}
2367
2368	/* return true if the object was destroyed, 0 otherwise */
2369	int was_destroyed (const object *op, tag_t old_tag)
2370	{
2371	/* checking for FLAG_FREED isn't necessary, but makes this function more
2372	* robust */
2373	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2374	}	2440	}
2375		2441
2376	/* GROS - Creates an object using a string representing its content. */	2442	/* GROS - Creates an object using a string representing its content. */
2377	/* Basically, we save the content of the string to a temp file, then call */	2443	/* Basically, we save the content of the string to a temp file, then call */
2378	/* load_object on it. I admit it is a highly inefficient way to make things, */	2444	/* load_object on it. I admit it is a highly inefficient way to make things, */
2379	/* but it was simple to make and allows reusing the load_object function. */	2445	/* but it was simple to make and allows reusing the load_object function. */
2380	/* Remember not to use load_object_str in a time-critical situation. */	2446	/* Remember not to use load_object_str in a time-critical situation. */
2381	/* Also remember that multiparts objects are not supported for now. */	2447	/* Also remember that multiparts objects are not supported for now. */
2382		2448
		2449	object *
2383	object* load_object_str(const char *obstr)	2450	load_object_str (const char *obstr)
2384	{	2451	{
2385	object *op;	2452	object *op;
2386	char filename[MAX_BUF];	2453	char filename[MAX_BUF];
		2454
2387	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2455	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2388		2456
2389	FILE *tempfile=fopen(filename,"w");	2457	FILE *tempfile = fopen (filename, "w");
		2458
2390	if (tempfile == NULL)	2459	if (tempfile == NULL)
2391	{	2460	{
2392	LOG(llevError,"Error - Unable to access load object temp file\n");	2461	LOG (llevError, "Error - Unable to access load object temp file\n");
2393	return NULL;	2462	return NULL;
2394	};	2463	}
		2464
2395	fprintf(tempfile,obstr);	2465	fprintf (tempfile, obstr);
2396	fclose(tempfile);	2466	fclose (tempfile);
2397		2467
2398	op=get_object();	2468	op = object::create ();
2399		2469
2400	object_thawer thawer (filename);	2470	object_thawer thawer (filename);
2401		2471
2402	if (thawer)	2472	if (thawer)
2403	load_object(thawer,op,0);	2473	load_object (thawer, op, 0);
2404		2474
2405	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2475	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2406	CLEAR_FLAG(op,FLAG_REMOVED);	2476	CLEAR_FLAG (op, FLAG_REMOVED);
2407		2477
2408	return op;	2478	return op;
2409	}	2479	}
2410		2480
2411	/* This returns the first object in who's inventory that	2481	/* This returns the first object in who's inventory that
2412	* has the same type and subtype match.	2482	* has the same type and subtype match.
2413	* returns NULL if no match.	2483	* returns NULL if no match.
2414	*/	2484	*/
		2485	object *
2415	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2486	find_obj_by_type_subtype (const object *who, int type, int subtype)
2416	{	2487	{
2417	object *tmp;	2488	object *tmp;
2418		2489
2419	for (tmp=who->inv; tmp; tmp=tmp->below)	2490	for (tmp = who->inv; tmp; tmp = tmp->below)
2420	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2491	if (tmp->type == type && tmp->subtype == subtype)
		2492	return tmp;
2421		2493
2422	return NULL;	2494	return NULL;
2423	}	2495	}
2424		2496
2425	/* If ob has a field named key, return the link from the list,	2497	/* If ob has a field named key, return the link from the list,
2426	* otherwise return NULL.	2498	* otherwise return NULL.
2427	*	2499	*
2428	* key must be a passed in shared string - otherwise, this won't	2500	* key must be a passed in shared string - otherwise, this won't
2429	* do the desired thing.	2501	* do the desired thing.
2430	*/	2502	*/
		2503	key_value *
2431	key_value * get_ob_key_link(const object * ob, const char * key) {	2504	get_ob_key_link (const object *ob, const char *key)
		2505	{
2432	key_value * link;	2506	key_value *link;
2433		2507
2434	for (link = ob->key_values; link != NULL; link = link->next) {	2508	for (link = ob->key_values; link != NULL; link = link->next)
2435	if (link->key == key) {	2509	if (link->key == key)
2436	return link;	2510	return link;
2437	}	2511
2438	}
2439
2440	return NULL;	2512	return NULL;
2441	}	2513	}
2442		2514
2443	/*	2515	/*
2444	* Returns the value of op has an extra_field for key, or NULL.	2516	* Returns the value of op has an extra_field for key, or NULL.
2445	*	2517	*
2446	* The argument doesn't need to be a shared string.	2518	* The argument doesn't need to be a shared string.
2447	*	2519	*
2448	* The returned string is shared.	2520	* The returned string is shared.
2449	*/	2521	*/
		2522	const char *
2450	const char * get_ob_key_value(const object * op, const char * const key) {	2523	get_ob_key_value (const object *op, const char *const key)
		2524	{
2451	key_value * link;	2525	key_value *link;
2452	const char * canonical_key;	2526	shstr_cmp canonical_key (key);
		2527
		2528	if (!canonical_key)
2453		2529	{
2454	canonical_key = shstr::find (key);
2455
2456	if (canonical_key == NULL) {
2457	/* 1. There being a field named key on any object	2530	/* 1. There being a field named key on any object
2458	* implies there'd be a shared string to find.	2531	* implies there'd be a shared string to find.
2459	* 2. Since there isn't, no object has this field.	2532	* 2. Since there isn't, no object has this field.
2460	* 3. Therefore, *this* object doesn't have this field.	2533	* 3. Therefore, *this* object doesn't have this field.
2461	*/	2534	*/
2462	return NULL;	2535	return 0;
2463	}	2536	}
2464		2537
2465	/* This is copied from get_ob_key_link() above -	2538	/* This is copied from get_ob_key_link() above -
2466	* only 4 lines, and saves the function call overhead.	2539	* only 4 lines, and saves the function call overhead.
2467	*/	2540	*/
2468	for (link = op->key_values; link != NULL; link = link->next) {	2541	for (link = op->key_values; link; link = link->next)
2469	if (link->key == canonical_key) {	2542	if (link->key == canonical_key)
2470	return link->value;	2543	return link->value;
2471	}	2544
2472	}	2545	return 0;
2473	return NULL;
2474	}	2546	}
2475		2547
2476		2548
2477	/*	2549	/*
2478	* Updates the canonical_key in op to value.	2550	* Updates the canonical_key in op to value.
…		…
2482	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2554	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2483	* keys.	2555	* keys.
2484	*	2556	*
2485	* Returns TRUE on success.	2557	* Returns TRUE on success.
2486	*/	2558	*/
		2559	int
2487	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2560	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2561	{
		2562	key_value *
2488	key_value * field = NULL, *last=NULL;	2563	field = NULL, *last = NULL;
2489		2564
2490	for (field=op->key_values; field != NULL; field=field->next) {	2565	for (field = op->key_values; field != NULL; field = field->next)
		2566	{
2491	if (field->key != canonical_key) {	2567	if (field->key != canonical_key)
		2568	{
2492	last = field;	2569	last = field;
2493	continue;	2570	continue;
2494	}	2571	}
2495		2572
2496	if (value)	2573	if (value)
2497	field->value = value;	2574	field->value = value;
2498	else {	2575	else
		2576	{
2499	/* Basically, if the archetype has this key set,	2577	/* Basically, if the archetype has this key set,
2500	* we need to store the null value so when we save	2578	* we need to store the null value so when we save
2501	* it, we save the empty value so that when we load,	2579	* it, we save the empty value so that when we load,
2502	* we get this value back again.	2580	* we get this value back again.
2503	*/	2581	*/
2504	if (get_ob_key_link (&op->arch->clone, canonical_key))	2582	if (get_ob_key_link (&op->arch->clone, canonical_key))
2505	field->value = 0;	2583	field->value = 0;
		2584	else
		2585	{
		2586	if (last)
		2587	last->next = field->next;
2506	else	2588	else
2507	{
2508	if (last) last->next = field->next;
2509	else op->key_values = field->next;	2589	op->key_values = field->next;
2510		2590
2511	delete field;	2591	delete field;
2512	}	2592	}
2513	}	2593	}
2514	return TRUE;	2594	return TRUE;
2515	}	2595	}
2516	/* IF we get here, key doesn't exist */	2596	/* IF we get here, key doesn't exist */
2517		2597
2518	/* No field, we'll have to add it. */	2598	/* No field, we'll have to add it. */
		2599
		2600	if (!add_key)
2519		2601	{
2520	if (!add_key) {
2521	return FALSE;	2602	return FALSE;
2522	}	2603	}
2523	/* There isn't any good reason to store a null	2604	/* There isn't any good reason to store a null
2524	* value in the key/value list. If the archetype has	2605	* value in the key/value list. If the archetype has
2525	* this key, then we should also have it, so shouldn't	2606	* this key, then we should also have it, so shouldn't
2526	* be here. If user wants to store empty strings,	2607	* be here. If user wants to store empty strings,
2527	* should pass in ""	2608	* should pass in ""
2528	*/	2609	*/
2529	if (value == NULL) return TRUE;	2610	if (value == NULL)
2530
2531	field = new key_value;
2532
2533	field->key = canonical_key;
2534	field->value = value;
2535	/* Usual prepend-addition. */
2536	field->next = op->key_values;
2537	op->key_values = field;
2538
2539	return TRUE;	2611	return TRUE;
		2612
		2613	field = new key_value;
		2614
		2615	field->key = canonical_key;
		2616	field->value = value;
		2617	/* Usual prepend-addition. */
		2618	field->next = op->key_values;
		2619	op->key_values = field;
		2620
		2621	return TRUE;
2540	}	2622	}
2541		2623
2542	/*	2624	/*
2543	* Updates the key in op to value.	2625	* Updates the key in op to value.
2544	*	2626	*
…		…
2546	* and not add new ones.	2628	* and not add new ones.
2547	* In general, should be little reason FALSE is ever passed in for add_key	2629	* In general, should be little reason FALSE is ever passed in for add_key
2548	*	2630	*
2549	* Returns TRUE on success.	2631	* Returns TRUE on success.
2550	*/	2632	*/
		2633	int
2551	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2634	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2552	{	2635	{
2553	shstr key_ (key);	2636	shstr key_ (key);
		2637
2554	return set_ob_key_value_s (op, key_, value, add_key);	2638	return set_ob_key_value_s (op, key_, value, add_key);
2555	}	2639	}
		2640
		2641	object::depth_iterator::depth_iterator (object *container)
		2642	: iterator_base (container)
		2643	{
		2644	while (item->inv)
		2645	item = item->inv;
		2646	}
		2647
		2648	void
		2649	object::depth_iterator::next ()
		2650	{
		2651	if (item->below)
		2652	{
		2653	item = item->below;
		2654
		2655	while (item->inv)
		2656	item = item->inv;
		2657	}
		2658	else
		2659	item = item->env;
		2660	}
		2661
		2662	// return a suitable string describing an objetc in enough detail to find it
		2663	const char *
		2664	object::debug_desc (char *info) const
		2665	{
		2666	char info2[256 * 3];
		2667	char *p = info;
		2668
		2669	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2670	count,
		2671	&name,
		2672	title ? " " : "",
		2673	title ? (const char *)title : "");
		2674
		2675	if (env)
		2676	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2677
		2678	if (map)
		2679	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2680
		2681	return info;
		2682	}
		2683
		2684	const char *
		2685	object::debug_desc () const
		2686	{
		2687	static char info[256 * 3];
		2688	return debug_desc (info);
		2689	}
		2690

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