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Comparing deliantra/server/common/object.C (file contents):
Revision 1.21 by root, Sat Sep 9 21:48:28 2006 UTC vs.
Revision 1.93 by root, Tue Dec 26 20:04:09 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.21 2006/09/09 21:48:28 root Exp $";
4	*/
5
6	/*	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; 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	}	157	}
80		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->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
145	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	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, 1);
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 = *(object_copy *)this;
535	*(object_pod *)destination = *(object_pod *)this;
536
537	if (self || cb)
538	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
539	}
540
541	/*	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;
587		487
588	if (is_freed) SET_FLAG (op, FLAG_FREED);	488	if (is_freed)
589	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	489	SET_FLAG (dst, FLAG_FREED);
590		490
		491	if (is_removed)
		492	SET_FLAG (dst, FLAG_REMOVED);
		493
591	if (op2->speed < 0)	494	if (speed < 0)
592	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
593		496
594	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
595	if (op2->key_values != NULL)	498	if (key_values)
596	{	499	{
597	key_value *tail = NULL;	500	key_value *tail = 0;
598	key_value *i;	501	key_value *i;
599		502
600	op->key_values = NULL;	503	dst->key_values = 0;
601		504
602	for (i = op2->key_values; i != NULL; i = i->next)	505	for (i = key_values; i; i = i->next)
603	{	506	{
604	key_value *new_link = new key_value;	507	key_value *new_link = new key_value;
605		508
606	new_link->next = NULL;	509	new_link->next = 0;
607	new_link->key = i->key;	510	new_link->key = i->key;
608	new_link->value = i->value;	511	new_link->value = i->value;
609		512
610	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
611	if (op->key_values == NULL)	514	if (!dst->key_values)
612	{	515	{
613	op->key_values = new_link;	516	dst->key_values = new_link;
614	tail = new_link;	517	tail = new_link;
615	}	518	}
616	else	519	else
617	{	520	{
618	tail->next = new_link;	521	tail->next = new_link;
619	tail = new_link;	522	tail = new_link;
620	}	523	}
621	}	524	}
622	}	525	}
623		526
624	update_ob_speed (op);	527	dst->set_speed (dst->speed);
		528	}
		529
		530	object *
		531	object::clone ()
		532	{
		533	object *neu = create ();
		534	copy_to (neu);
		535	return neu;
625	}	536	}
626		537
627	/*	538	/*
628	* If an object with the IS_TURNABLE() flag needs to be turned due	539	* If an object with the IS_TURNABLE() flag needs to be turned due
629	* to the closest player being on the other side, this function can	540	* to the closest player being on the other side, this function can
630	* be called to update the face variable, _and_ how it looks on the map.	541	* be called to update the face variable, _and_ how it looks on the map.
631	*/	542	*/
632		543
		544	void
633	void update_turn_face(object *op) {	545	update_turn_face (object *op)
		546	{
634	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
635	return;	548	return;
636	SET_ANIMATION(op, op->direction);	549	SET_ANIMATION (op, op->direction);
637	update_object(op,UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
638	}	551	}
639		552
640	/*	553	/*
641	* Updates the speed of an object. If the speed changes from 0 to another	554	* Updates the speed of an object. If the speed changes from 0 to another
642	* value, or vice versa, then add/remove the object from the active list.	555	* value, or vice versa, then add/remove the object from the active list.
643	* This function needs to be called whenever the speed of an object changes.	556	* This function needs to be called whenever the speed of an object changes.
644	*/	557	*/
645		558	void
646	void update_ob_speed(object *op) {	559	object::set_speed (float speed)
		560	{
647	extern int arch_init;	561	extern int arch_init;
648		562
649	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
650	* since they never really need to be updated.	564	* since they never really need to be updated.
651	*/	565	*/
652		566	if (flag [FLAG_FREED] && speed)
653	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	567	{
654	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	568	LOG (llevError, "Object %s is freed but has speed.\n", &name);
655	#ifdef MANY_CORES
656	abort();
657	#else
658	op->speed = 0;	569	speed = 0;
659	#endif
660	}	570	}
		571
		572	this->speed = speed;
		573
661	if (arch_init) {	574	if (arch_init)
		575	return;
		576
		577	if (FABS (speed) > MIN_ACTIVE_SPEED)
		578	{
		579	/* If already on active list, don't do anything */
		580	if (active_next || active_prev || this == active_objects)
662	return;	581	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		582
669	/* process_events() expects us to insert the object at the beginning	583	/* process_events() expects us to insert the object at the beginning
670	* of the list. */	584	* of the list. */
671	op->active_next = active_objects;	585	active_next = active_objects;
		586
672	if (op->active_next!=NULL)	587	if (active_next)
673	op->active_next->active_prev = op;	588	active_next->active_prev = this;
		589
674	active_objects = op;	590	active_objects = this;
		591	}
		592	else
675	}	593	{
676	else {
677	/* If not on the active list, nothing needs to be done */	594	/* If not on the active list, nothing needs to be done */
678	if (!op->active_next && !op->active_prev && op!=active_objects)	595	if (!active_next && !active_prev && this != active_objects)
679	return;	596	return;
680		597
681	if (op->active_prev==NULL) {	598	if (!active_prev)
		599	{
682	active_objects = op->active_next;	600	active_objects = active_next;
		601
683	if (op->active_next!=NULL)	602	if (active_next)
684	op->active_next->active_prev = NULL;	603	active_next->active_prev = 0;
685	}	604	}
686	else {	605	else
		606	{
687	op->active_prev->active_next = op->active_next;	607	active_prev->active_next = active_next;
		608
688	if (op->active_next)	609	if (active_next)
689	op->active_next->active_prev = op->active_prev;	610	active_next->active_prev = active_prev;
690	}	611	}
		612
691	op->active_next = NULL;	613	active_next = 0;
692	op->active_prev = NULL;	614	active_prev = 0;
693	}	615	}
694	}	616	}
695		617
696	/* This function removes object 'op' from the list of active	618	/* This function removes object 'op' from the list of active
697	* objects.	619	* objects.
…		…
699	* reference maps where you don't want an object that isn't	621	* reference maps where you don't want an object that isn't
700	* in play chewing up cpu time getting processed.	622	* in play chewing up cpu time getting processed.
701	* The reverse of this is to call update_ob_speed, which	623	* The reverse of this is to call update_ob_speed, which
702	* will do the right thing based on the speed of the object.	624	* will do the right thing based on the speed of the object.
703	*/	625	*/
		626	void
704	void remove_from_active_list(object *op)	627	remove_from_active_list (object *op)
705	{	628	{
706	/* If not on the active list, nothing needs to be done */	629	/* If not on the active list, nothing needs to be done */
707	if (!op->active_next && !op->active_prev && op!=active_objects)	630	if (!op->active_next && !op->active_prev && op != active_objects)
708	return;	631	return;
709		632
710	if (op->active_prev==NULL) {	633	if (op->active_prev == NULL)
		634	{
711	active_objects = op->active_next;	635	active_objects = op->active_next;
712	if (op->active_next!=NULL)	636	if (op->active_next != NULL)
713	op->active_next->active_prev = NULL;	637	op->active_next->active_prev = NULL;
		638	}
		639	else
714	}	640	{
715	else {
716	op->active_prev->active_next = op->active_next;	641	op->active_prev->active_next = op->active_next;
717	if (op->active_next)	642	if (op->active_next)
718	op->active_next->active_prev = op->active_prev;	643	op->active_next->active_prev = op->active_prev;
719	}	644	}
720	op->active_next = NULL;	645	op->active_next = NULL;
721	op->active_prev = NULL;	646	op->active_prev = NULL;
722	}	647	}
723		648
724	/*	649	/*
725	* update_object() updates the array which represents the map.	650	* update_object() updates the the map.
726	* It takes into account invisible objects (and represent squares covered	651	* It takes into account invisible objects (and represent squares covered
727	* by invisible objects by whatever is below them (unless it's another	652	* by invisible objects by whatever is below them (unless it's another
728	* invisible object, etc...)	653	* invisible object, etc...)
729	* If the object being updated is beneath a player, the look-window	654	* 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	655	* of that player is updated (this might be a suboptimal way of
731	* updating that window, though, since update_object() is called _often_)	656	* updating that window, though, since update_object() is called _often_)
732	*	657	*
733	* action is a hint of what the caller believes need to be done.	658	* 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:	659	* current action are:
739	* UP_OBJ_INSERT: op was inserted	660	* UP_OBJ_INSERT: op was inserted
740	* UP_OBJ_REMOVE: op was removed	661	* UP_OBJ_REMOVE: op was removed
741	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	662	* 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.	663	* as that is easier than trying to look at what may have changed.
743	* UP_OBJ_FACE: only the objects face has changed.	664	* UP_OBJ_FACE: only the objects face has changed.
744	*/	665	*/
745		666	void
746	void update_object(object *op, int action) {	667	update_object (object *op, int action)
747	int update_now=0, flags;	668	{
748	MoveType move_on, move_off, move_block, move_slow;	669	MoveType move_on, move_off, move_block, move_slow;
749		670
750	if (op == NULL) {	671	if (op == NULL)
		672	{
751	/* this should never happen */	673	/* this should never happen */
752	LOG(llevDebug,"update_object() called for NULL object.\n");	674	LOG (llevDebug, "update_object() called for NULL object.\n");
753	return;	675	return;
754	}
755		676	}
756	if(op->env!=NULL) {	677
		678	if (op->env)
		679	{
757	/* Animation is currently handled by client, so nothing	680	/* Animation is currently handled by client, so nothing
758	* to do in this case.	681	* to do in this case.
759	*/	682	*/
760	return;	683	return;
761	}	684	}
762		685
763	/* If the map is saving, don't do anything as everything is	686	/* If the map is saving, don't do anything as everything is
764	* going to get freed anyways.	687	* going to get freed anyways.
765	*/	688	*/
766	if (!op->map || op->map->in_memory == MAP_SAVING) return;	689	if (!op->map || op->map->in_memory == MAP_SAVING)
767		690	return;
		691
768	/* make sure the object is within map boundaries */	692	/* make sure the object is within map boundaries */
769	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	693	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
770	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	694	{
771	LOG(llevError,"update_object() called for object out of map!\n");	695	LOG (llevError, "update_object() called for object out of map!\n");
772	#ifdef MANY_CORES	696	#ifdef MANY_CORES
773	abort();	697	abort ();
774	#endif	698	#endif
775	return;	699	return;
776	}
777		700	}
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		701
		702	mapspace &m = op->ms ();
		703
		704	if (m.flags_ & P_NEED_UPDATE)
		705	/* nop */;
785	if (action == UP_OBJ_INSERT) {	706	else if (action == UP_OBJ_INSERT)
		707	{
		708	// this is likely overkill, TODO: revisit (schmorp)
786	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	709	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))	710	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
790	update_now=1;	711	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
791		712	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		713	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
792	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	714	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
793	update_now=1;	715	|| (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;	716	|| (m.move_off | op->move_off ) != m.move_off
804		717	|| (m.move_slow | op->move_slow) != m.move_slow
805	/* This isn't perfect, but I don't expect a lot of objects to	718	/* This isn't perfect, but I don't expect a lot of objects to
806	* to have move_allow right now.	719	* to have move_allow right now.
807	*/	720	*/
808	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	721	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
809	update_now=1;	722	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
810		723	m.flags_ = P_NEED_UPDATE;
811	if ((move_slow | op->move_slow) != move_slow)
812	update_now=1;
813	}	724	}
814	/* if the object is being removed, we can't make intelligent	725	/* if the object is being removed, we can't make intelligent
815	* decisions, because remove_ob can't really pass the object	726	* decisions, because remove_ob can't really pass the object
816	* that is being removed.	727	* that is being removed.
817	*/	728	*/
818	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	729	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
819	update_now=1;	730	m.flags_ = P_NEED_UPDATE;
820	} else if (action == UP_OBJ_FACE) {	731	else if (action == UP_OBJ_FACE)
821	/* Nothing to do for that case */	732	/* Nothing to do for that case */ ;
822	}
823	else {	733	else
824	LOG(llevError,"update_object called with invalid action: %d\n", action);	734	LOG (llevError, "update_object called with invalid action: %d\n", action);
825	}
826		735
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)	736	if (op->more)
833	update_object(op->more, action);	737	update_object (op->more, action);
834	}	738	}
835		739
836	static std::vector<object *> mortals;	740	object::vector object::objects; // not yet used
837		741	object *object::first;
838	void object::free_mortals ()
839	{
840	for (std::vector<object *>::iterator i = mortals.begin (); i != mortals.end (); ++i)
841	delete *i;
842
843	mortals.clear ();
844	}
845		742
846	object::object ()	743	object::object ()
847	{	744	{
848	count = ++ob_count;
849
850	prev = 0;
851	next = objects;
852
853	if (objects)
854	objects->prev = this;
855
856	objects = this;
857
858	SET_FLAG (this, FLAG_REMOVED);	745	SET_FLAG (this, FLAG_REMOVED);
859		746
860	expmul = 1.0;	747	expmul = 1.0;
861	face = blank_face;	748	face = blank_face;
862	attacked_by_count = -1;
863	}	749	}
864		750
865	object::~object ()	751	object::~object ()
866	{	752	{
		753	free_key_values (this);
867	}	754	}
868		755
869	object *object::create ()	756	void object::link ()
870	{	757	{
871	return new object;	758	count = ++ob_count;
872	}	759	uuid = gen_uuid ();
873		760
874	/*
875	* free_object() frees everything allocated by an object, removes
876	* it from the list of used objects, and puts it on the list of
877	* free objects. The IS_FREED() flag is set in the object.
878	* The object must have been removed by remove_ob() first for
879	* this function to succeed.
880	*
881	* If free_inventory is set, free inventory as well. Else drop items in
882	* inventory to the ground.
883	*/
884	void
885	object::free (bool free_inventory)
886	{
887	if (!QUERY_FLAG (this, FLAG_REMOVED))
888	{
889	LOG (llevDebug, "Free object called with non removed object\n");
890	dump_object (this);
891	#ifdef MANY_CORES
892	abort ();
893	#endif
894	}
895
896	if (QUERY_FLAG (this, FLAG_FRIENDLY))
897	{
898	LOG (llevMonster, "Warning: tried to free friendly object.\n");
899	remove_friendly_object (this);
900	}
901
902	if (QUERY_FLAG (this, FLAG_FREED))
903	{
904	dump_object (this);
905	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);
906	return;
907	}
908
909	if (more)
910	{
911	more->free (free_inventory);
912	more = 0;
913	}
914
915	if (inv)
916	{
917	/* Only if the space blocks everything do we not process -
918	* if some form of movement is allowed, let objects
919	* drop on that space.
920	*/
921	if (free_inventory || !map
922	|| map->in_memory != MAP_IN_MEMORY
923	|| (GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL))
924	{
925	object *op = inv;
926
927	while (op)
928	{
929	object *tmp = op->below;
930	remove_ob (op);
931	op->free (free_inventory);
932	op = tmp;
933	}
934	}
935	else
936	{ /* Put objects in inventory onto this space */
937	object *op = inv;
938
939	while (op)
940	{
941	object *tmp = op->below;
942	remove_ob (op);
943
944	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
945	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE
946	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
947	free_object (op);
948	else
949	{
950	op->x = x;
951	op->y = y;
952	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
953	}
954
955	op = tmp;
956	}
957	}
958	}
959
960	/* Remove object from the active list */
961	speed = 0;	761	prev = 0;
962	update_ob_speed (this);	762	next = object::first;
963		763
964	SET_FLAG (this, FLAG_FREED);	764	if (object::first)
		765	object::first->prev = this;
965		766
966	mortalise ();	767	object::first = this;
967	}	768	}
968		769
969	void	770	void object::unlink ()
970	object::mortalise ()
971	{	771	{
972	count = 0;	772	if (this == object::first)
		773	object::first = next;
973		774
974	/* Remove this object from the list of used objects */	775	/* Remove this object from the list of used objects */
975	if (prev) prev->next = next;	776	if (prev) prev->next = next;
976	if (next) next->prev = prev;	777	if (next) next->prev = prev;
977	if (this == objects) objects = next;
978		778
979	free_key_values (this);	779	prev = 0;
		780	next = 0;
		781	}
980		782
981	mortals.push_back (this);	783	/*
		784	* Remove and free all objects in the inventory of the given object.
		785	* object.c ?
		786	*/
		787	void
		788	object::destroy_inv (bool drop_to_ground)
		789	{
		790	/* Only if the space blocks everything do we not process -
		791	* if some form of movement is allowed, let objects
		792	* drop on that space.
		793	*/
		794	if (!drop_to_ground
		795	|| !map
		796	|| map->in_memory != MAP_IN_MEMORY
		797	|| map->at (x, y).move_block == MOVE_ALL)
		798	{
		799	while (inv)
		800	{
		801	inv->destroy_inv (drop_to_ground);
		802	inv->destroy ();
		803	}
		804	}
		805	else
		806	{ /* Put objects in inventory onto this space */
		807	while (inv)
		808	{
		809	object *op = inv;
		810
		811	if (op->flag [FLAG_STARTEQUIP]
		812	|| op->flag [FLAG_NO_DROP]
		813	|| op->type == RUNE
		814	|| op->type == TRAP
		815	|| op->flag [FLAG_IS_A_TEMPLATE])
		816	op->destroy ();
		817	else
		818	map->insert (op, x, y);
		819	}
		820	}
		821	}
		822
		823	object *object::create ()
		824	{
		825	object *op = new object;
		826	op->link ();
		827	return op;
		828	}
		829
		830	void
		831	object::do_destroy ()
		832	{
		833	if (flag [FLAG_IS_LINKED])
		834	remove_button_link (this);
		835
		836	if (flag [FLAG_FRIENDLY])
		837	remove_friendly_object (this);
		838
		839	if (!flag [FLAG_REMOVED])
		840	remove ();
		841
		842	if (flag [FLAG_FREED])
		843	return;
		844
		845	set_speed (0);
		846
		847	flag [FLAG_FREED] = 1;
		848
		849	attachable::do_destroy ();
		850
		851	destroy_inv (true);
		852	unlink ();
		853
		854	// hack to ensure that freed objects still have a valid map
		855	{
		856	static maptile *freed_map; // freed objects are moved here to avoid crashes
		857
		858	if (!freed_map)
		859	{
		860	freed_map = new maptile;
		861
		862	freed_map->name = "/internal/freed_objects_map";
		863	freed_map->width = 3;
		864	freed_map->height = 3;
		865
		866	freed_map->allocate ();
		867	}
		868
		869	map = freed_map;
		870	x = 1;
		871	y = 1;
		872	}
		873
		874	head = 0;
		875
		876	if (more)
		877	{
		878	more->destroy ();
		879	more = 0;
		880	}
		881
		882	// clear those pointers that likely might have circular references to us
		883	owner = 0;
		884	enemy = 0;
		885	attacked_by = 0;
		886
		887	// only relevant for players(?), but make sure of it anyways
		888	contr = 0;
		889	}
		890
		891	void
		892	object::destroy (bool destroy_inventory)
		893	{
		894	if (destroyed ())
		895	return;
		896
		897	if (destroy_inventory)
		898	destroy_inv (false);
		899
		900	attachable::destroy ();
982	}	901	}
983		902
984	/*	903	/*
985	* sub_weight() recursively (outwards) subtracts a number from the	904	* sub_weight() recursively (outwards) subtracts a number from the
986	* weight of an object (and what is carried by it's environment(s)).	905	* weight of an object (and what is carried by it's environment(s)).
987	*/	906	*/
988		907	void
989	void sub_weight (object *op, signed long weight) {	908	sub_weight (object *op, signed long weight)
		909	{
990	while (op != NULL) {	910	while (op != NULL)
		911	{
991	if (op->type == CONTAINER) {	912	if (op->type == CONTAINER)
992	weight=(signed long)(weight*(100-op->stats.Str)/100);	913	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
993	}	914
994	op->carrying-=weight;	915	op->carrying -= weight;
995	op = op->env;	916	op = op->env;
996	}	917	}
997	}	918	}
998		919
999	/* remove_ob(op):	920	/* op->remove ():
1000	* This function removes the object op from the linked list of objects	921	* This function removes the object op from the linked list of objects
1001	* which it is currently tied to. When this function is done, the	922	* which it is currently tied to. When this function is done, the
1002	* object will have no environment. If the object previously had an	923	* object will have no environment. If the object previously had an
1003	* environment, the x and y coordinates will be updated to	924	* environment, the x and y coordinates will be updated to
1004	* the previous environment.	925	* the previous environment.
1005	* Beware: This function is called from the editor as well!	926	* Beware: This function is called from the editor as well!
1006	*/	927	*/
1007		928	void
1008	void remove_ob(object *op) {	929	object::remove ()
		930	{
1009	object *tmp,*last=NULL;	931	object *tmp, *last = 0;
1010	object *otmp;	932	object *otmp;
1011	tag_t tag;
1012	int check_walk_off;
1013	mapstruct *m;
1014	sint16 x,y;
1015
1016		933
1017	if(QUERY_FLAG(op,FLAG_REMOVED)) {	934	if (QUERY_FLAG (this, FLAG_REMOVED))
1018	dump_object(op);	935	return;
1019	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1020		936
1021	/* Changed it to always dump core in this case. As has been learned
1022	* in the past, trying to recover from errors almost always
1023	* make things worse, and this is a real error here - something
1024	* that should not happen.
1025	* Yes, if this was a mission critical app, trying to do something
1026	* to recover may make sense, but that is because failure of the app
1027	* may have other disastrous problems. Cf runs out of a script
1028	* so is easily enough restarted without any real problems.
1029	* MSW 2001-07-01
1030	*/
1031	abort();
1032	}
1033	if(op->more!=NULL)
1034	remove_ob(op->more);
1035
1036	SET_FLAG(op, FLAG_REMOVED);	937	SET_FLAG (this, FLAG_REMOVED);
		938	INVOKE_OBJECT (REMOVE, this);
1037		939
		940	if (more)
		941	more->remove ();
		942
1038	/*	943	/*
1039	* In this case, the object to be removed is in someones	944	* In this case, the object to be removed is in someones
1040	* inventory.	945	* inventory.
1041	*/	946	*/
1042	if(op->env!=NULL) {	947	if (env)
		948	{
1043	if(op->nrof)	949	if (nrof)
1044	sub_weight(op->env, op->weight*op->nrof);	950	sub_weight (env, weight * nrof);
1045	else	951	else
1046	sub_weight(op->env, op->weight+op->carrying);	952	sub_weight (env, weight + carrying);
1047		953
1048	/* NO_FIX_PLAYER is set when a great many changes are being	954	/* NO_FIX_PLAYER is set when a great many changes are being
1049	* made to players inventory. If set, avoiding the call	955	* made to players inventory. If set, avoiding the call
1050	* to save cpu time.	956	* to save cpu time.
1051	*/	957	*/
1052	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	958	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1053	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	959	otmp->update_stats ();
1054	fix_player(otmp);
1055		960
1056	if(op->above!=NULL)	961	if (above != NULL)
1057	op->above->below=op->below;	962	above->below = below;
1058	else	963	else
1059	op->env->inv=op->below;	964	env->inv = below;
1060		965
1061	if(op->below!=NULL)	966	if (below != NULL)
1062	op->below->above=op->above;	967	below->above = above;
1063		968
1064	/* we set up values so that it could be inserted into	969	/* we set up values so that it could be inserted into
1065	* the map, but we don't actually do that - it is up	970	* the map, but we don't actually do that - it is up
1066	* to the caller to decide what we want to do.	971	* to the caller to decide what we want to do.
		972	*/
		973	x = env->x, y = env->y;
		974	map = env->map;
		975	above = 0, below = 0;
		976	env = 0;
		977	}
		978	else if (map)
		979	{
		980	/* Re did the following section of code - it looks like it had
		981	* lots of logic for things we no longer care about
		982	*/
		983
		984	/* link the object above us */
		985	if (above)
		986	above->below = below;
		987	else
		988	map->at (x, y).top = below; /* we were top, set new top */
		989
		990	/* Relink the object below us, if there is one */
		991	if (below)
		992	below->above = above;
		993	else
		994	{
		995	/* Nothing below, which means we need to relink map object for this space
		996	* use translated coordinates in case some oddness with map tiling is
		997	* evident
1067	*/	998	*/
1068	op->x=op->env->x,op->y=op->env->y;	999	if (GET_MAP_OB (map, x, y) != this)
1069	op->map=op->env->map;	1000	{
1070	op->above=NULL,op->below=NULL;	1001	char *dump = dump_object (this);
1071	op->env=NULL;	1002	LOG (llevError,
		1003	"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);
		1004	free (dump);
		1005	dump = dump_object (GET_MAP_OB (map, x, y));
		1006	LOG (llevError, "%s\n", dump);
		1007	free (dump);
		1008	}
		1009
		1010	map->at (x, y).bot = above; /* goes on above it. */
		1011	}
		1012
		1013	above = 0;
		1014	below = 0;
		1015
		1016	if (map->in_memory == MAP_SAVING)
1072	return;	1017	return;
1073	}
1074		1018
1075	/* If we get here, we are removing it from a map */	1019	int check_walk_off = !flag [FLAG_NO_APPLY];
1076	if (op->map == NULL) return;
1077		1020
1078	x = op->x;	1021	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1079	y = op->y;	1022	{
1080	m = get_map_from_coord(op->map, &x, &y);	1023	/* No point updating the players look faces if he is the object
1081		1024	* being removed.
1082	if (!m) {
1083	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1084	op->map->path, op->x, op->y);
1085	/* in old days, we used to set x and y to 0 and continue.
1086	* it seems if we get into this case, something is probablye
1087	* screwed up and should be fixed.
1088	*/	1025	*/
1089	abort();
1090	}
1091	if (op->map != m) {
1092	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1093	op->map->path, m->path, op->x, op->y, x, y);
1094	}
1095		1026
1096	/* Re did the following section of code - it looks like it had	1027	if (tmp->type == PLAYER && tmp != this)
1097	* lots of logic for things we no longer care about	1028	{
1098	*/	1029	/* If a container that the player is currently using somehow gets
1099		1030	* removed (most likely destroyed), update the player view
1100	/* link the object above us */	1031	* appropriately.
1101	if (op->above)
1102	op->above->below=op->below;
1103	else
1104	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1105
1106	/* Relink the object below us, if there is one */
1107	if(op->below) {
1108	op->below->above=op->above;
1109	} else {
1110	/* Nothing below, which means we need to relink map object for this space
1111	* use translated coordinates in case some oddness with map tiling is
1112	* evident
1113	*/	1032	*/
1114	if(GET_MAP_OB(m,x,y)!=op) {	1033	if (tmp->container == this)
1115	dump_object(op);	1034	{
1116	LOG(llevError,"remove_ob: GET_MAP_OB does not return object to be removed even though it appears to be on the bottom?\n%s\n", errmsg);	1035	flag [FLAG_APPLIED] = 0;
1117	dump_object(GET_MAP_OB(m,x,y));	1036	tmp->container = 0;
1118	LOG(llevError,"%s\n",errmsg);	1037	}
		1038
		1039	if (tmp->contr->ns)
		1040	tmp->contr->ns->floorbox_update ();
		1041	}
		1042
		1043	/* See if player moving off should effect something */
		1044	if (check_walk_off
		1045	&& ((move_type & tmp->move_off)
		1046	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1047	{
		1048	move_apply (tmp, this, 0);
		1049
		1050	if (destroyed ())
		1051	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1052	}
		1053
		1054	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1055
		1056	if (tmp->above == tmp)
		1057	tmp->above = 0;
		1058
		1059	last = tmp;
1119	}	1060	}
1120	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1121	}
1122	op->above=NULL;
1123	op->below=NULL;
1124		1061
1125	if (op->map->in_memory == MAP_SAVING)
1126	return;
1127
1128	tag = op->count;
1129	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1130	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1131	/* No point updating the players look faces if he is the object
1132	* being removed.
1133	*/
1134
1135	if(tmp->type==PLAYER && tmp!=op) {
1136	/* If a container that the player is currently using somehow gets
1137	* removed (most likely destroyed), update the player view
1138	* appropriately.
1139	*/
1140	if (tmp->container==op) {
1141	CLEAR_FLAG(op, FLAG_APPLIED);
1142	tmp->container=NULL;
1143	}
1144	tmp->contr->socket.update_look=1;
1145	}
1146	/* See if player moving off should effect something */
1147	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1148	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1149
1150	move_apply(tmp, op, NULL);
1151	if (was_destroyed (op, tag)) {
1152	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1153	"leaving object\n", &tmp->name, &tmp->arch->name);
1154	}
1155	}
1156
1157	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1158
1159	if(tmp->above == tmp)
1160	tmp->above = NULL;
1161	last=tmp;
1162	}
1163	/* last == NULL of there are no objects on this space */	1062	/* last == NULL of there are no objects on this space */
1164	if (last==NULL) {	1063	if (!last)
1165	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1064	map->at (x, y).flags_ = P_NEED_UPDATE;
1166	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1167	* those out anyways, and if there are any flags set right now, they won't
1168	* be correct anyways.
1169	*/
1170	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1171	update_position(op->map, op->x, op->y);
1172	}
1173	else	1065	else
1174	update_object(last, UP_OBJ_REMOVE);	1066	update_object (last, UP_OBJ_REMOVE);
1175		1067
1176	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1068	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1177	update_all_los(op->map, op->x, op->y);	1069	update_all_los (map, x, y);
1178		1070	}
1179	}	1071	}
1180		1072
1181	/*	1073	/*
1182	* merge_ob(op,top):	1074	* merge_ob(op,top):
1183	*	1075	*
1184	* This function goes through all objects below and including top, and	1076	* This function goes through all objects below and including top, and
1185	* merges op to the first matching object.	1077	* merges op to the first matching object.
1186	* If top is NULL, it is calculated.	1078	* If top is NULL, it is calculated.
1187	* Returns pointer to object if it succeded in the merge, otherwise NULL	1079	* Returns pointer to object if it succeded in the merge, otherwise NULL
1188	*/	1080	*/
1189		1081	object *
1190	object *merge_ob(object *op, object *top) {	1082	merge_ob (object *op, object *top)
		1083	{
1191	if(!op->nrof)	1084	if (!op->nrof)
1192	return 0;	1085	return 0;
1193	if(top==NULL)	1086
		1087	if (top)
1194	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1088	for (top = op; top && top->above; top = top->above)
		1089	;
		1090
1195	for(;top!=NULL;top=top->below) {	1091	for (; top; top = top->below)
		1092	{
1196	if(top==op)	1093	if (top == op)
1197	continue;	1094	continue;
1198	if (CAN_MERGE(op,top))	1095
1199	{	1096	if (object::can_merge (op, top))
		1097	{
1200	top->nrof+=op->nrof;	1098	top->nrof += op->nrof;
		1099
1201	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1100	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1202	op->weight = 0; /* Don't want any adjustements now */	1101	op->weight = 0; /* Don't want any adjustements now */
1203	remove_ob(op);	1102	op->destroy ();
1204	free_object(op);
1205	return top;	1103	return top;
1206	}	1104	}
1207	}	1105	}
		1106
1208	return NULL;	1107	return 0;
1209	}	1108	}
1210		1109
1211	/*	1110	/*
1212	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1111	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1213	* job preparing multi-part monsters	1112	* job preparing multi-part monsters
1214	*/	1113	*/
		1114	object *
1215	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1115	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1216	object* tmp;	1116	{
1217	if (op->head)	1117	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1218	op=op->head;	1118	{
1219	for (tmp=op;tmp;tmp=tmp->more){
1220	tmp->x=x+tmp->arch->clone.x;	1119	tmp->x = x + tmp->arch->clone.x;
1221	tmp->y=y+tmp->arch->clone.y;	1120	tmp->y = y + tmp->arch->clone.y;
1222	}	1121	}
		1122
1223	return insert_ob_in_map (op, m, originator, flag);	1123	return insert_ob_in_map (op, m, originator, flag);
1224	}	1124	}
1225		1125
1226	/*	1126	/*
1227	* insert_ob_in_map (op, map, originator, flag):	1127	* insert_ob_in_map (op, map, originator, flag):
1228	* This function inserts the object in the two-way linked list	1128	* This function inserts the object in the two-way linked list
…		…
1241	* Return value:	1141	* Return value:
1242	* new object if 'op' was merged with other object	1142	* new object if 'op' was merged with other object
1243	* NULL if 'op' was destroyed	1143	* NULL if 'op' was destroyed
1244	* just 'op' otherwise	1144	* just 'op' otherwise
1245	*/	1145	*/
1246		1146	object *
1247	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1147	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1248	{	1148	{
1249	object *tmp, *top, *floor=NULL;	1149	object *tmp, *top, *floor = NULL;
1250	sint16 x,y;	1150	sint16 x, y;
1251		1151
1252	if (QUERY_FLAG (op, FLAG_FREED)) {	1152	if (QUERY_FLAG (op, FLAG_FREED))
		1153	{
1253	LOG (llevError, "Trying to insert freed object!\n");	1154	LOG (llevError, "Trying to insert freed object!\n");
1254	return NULL;	1155	return NULL;
		1156	}
		1157
		1158	if (m == NULL)
1255	}	1159	{
1256	if(m==NULL) {
1257	dump_object(op);	1160	char *dump = dump_object (op);
1258	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1161	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1162	free (dump);
1259	return op;	1163	return op;
1260	}	1164	}
		1165
1261	if(out_of_map(m,op->x,op->y)) {	1166	if (out_of_map (m, op->x, op->y))
		1167	{
1262	dump_object(op);	1168	char *dump = dump_object (op);
1263	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1169	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1264	#ifdef MANY_CORES	1170	#ifdef MANY_CORES
1265	/* Better to catch this here, as otherwise the next use of this object	1171	/* Better to catch this here, as otherwise the next use of this object
1266	* is likely to cause a crash. Better to find out where it is getting	1172	* is likely to cause a crash. Better to find out where it is getting
1267	* improperly inserted.	1173	* improperly inserted.
1268	*/	1174	*/
1269	abort();	1175	abort ();
1270	#endif	1176	#endif
		1177	free (dump);
1271	return op;	1178	return op;
1272	}	1179	}
		1180
1273	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1181	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1182	{
1274	dump_object(op);	1183	char *dump = dump_object (op);
1275	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1184	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1185	free (dump);
1276	return op;	1186	return op;
		1187	}
		1188
		1189	if (op->more)
1277	}	1190	{
1278	if(op->more!=NULL) {
1279	/* The part may be on a different map. */	1191	/* The part may be on a different map. */
1280		1192
1281	object *more = op->more;	1193	object *more = op->more;
1282		1194
1283	/* We really need the caller to normalize coordinates - if	1195	/* We really need the caller to normalize coordinates - if
1284	* we set the map, that doesn't work if the location is within	1196	* we set the map, that doesn't work if the location is within
1285	* a map and this is straddling an edge. So only if coordinate	1197	* a map and this is straddling an edge. So only if coordinate
1286	* is clear wrong do we normalize it.	1198	* is clear wrong do we normalize it.
1287	*/	1199	*/
1288	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1200	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1289	more->map = get_map_from_coord(m, &more->x, &more->y);	1201	more->map = get_map_from_coord (m, &more->x, &more->y);
1290	} else if (!more->map) {	1202	else if (!more->map)
		1203	{
1291	/* For backwards compatibility - when not dealing with tiled maps,	1204	/* For backwards compatibility - when not dealing with tiled maps,
1292	* more->map should always point to the parent.	1205	* more->map should always point to the parent.
1293	*/	1206	*/
1294	more->map = m;	1207	more->map = m;
1295	}	1208	}
1296		1209
1297	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1210	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1211	{
1298	if ( ! op->head)	1212	if (!op->head)
1299	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1213	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1214
1300	return NULL;	1215	return 0;
1301	}	1216	}
1302	}	1217	}
		1218
1303	CLEAR_FLAG(op,FLAG_REMOVED);	1219	CLEAR_FLAG (op, FLAG_REMOVED);
1304		1220
1305	/* Ideally, the caller figures this out. However, it complicates a lot	1221	/* Ideally, the caller figures this out. However, it complicates a lot
1306	* of areas of callers (eg, anything that uses find_free_spot would now	1222	* of areas of callers (eg, anything that uses find_free_spot would now
1307	* need extra work	1223	* need extra work
1308	*/	1224	*/
1309	op->map=get_map_from_coord(m, &op->x, &op->y);	1225	op->map = get_map_from_coord (m, &op->x, &op->y);
1310	x = op->x;	1226	x = op->x;
1311	y = op->y;	1227	y = op->y;
1312		1228
1313	/* this has to be done after we translate the coordinates.	1229	/* this has to be done after we translate the coordinates.
1314	*/	1230	*/
1315	if(op->nrof && !(flag & INS_NO_MERGE)) {	1231	if (op->nrof && !(flag & INS_NO_MERGE))
1316	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1232	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1317	if (CAN_MERGE(op,tmp)) {	1233	if (object::can_merge (op, tmp))
		1234	{
1318	op->nrof+=tmp->nrof;	1235	op->nrof += tmp->nrof;
1319	remove_ob(tmp);	1236	tmp->destroy ();
1320	free_object(tmp);	1237	}
		1238
		1239	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1240	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1241
		1242	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1243	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1244
		1245	if (flag & INS_BELOW_ORIGINATOR)
		1246	{
		1247	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1248	{
		1249	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1250	abort ();
		1251	}
		1252
		1253	op->above = originator;
		1254	op->below = originator->below;
		1255
		1256	if (op->below)
		1257	op->below->above = op;
		1258	else
		1259	op->ms ().bot = op;
		1260
		1261	/* since *below* originator, no need to update top */
		1262	originator->below = op;
		1263	}
		1264	else
		1265	{
		1266	/* If there are other objects, then */
		1267	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1268	{
		1269	object *last = NULL;
		1270
		1271	/*
		1272	* If there are multiple objects on this space, we do some trickier handling.
		1273	* We've already dealt with merging if appropriate.
		1274	* Generally, we want to put the new object on top. But if
		1275	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1276	* floor, we want to insert above that and no further.
		1277	* Also, if there are spell objects on this space, we stop processing
		1278	* once we get to them. This reduces the need to traverse over all of
		1279	* them when adding another one - this saves quite a bit of cpu time
		1280	* when lots of spells are cast in one area. Currently, it is presumed
		1281	* that flying non pickable objects are spell objects.
		1282	*/
		1283
		1284	while (top != NULL)
		1285	{
		1286	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1287	floor = top;
		1288
		1289	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1290	{
		1291	/* We insert above top, so we want this object below this */
		1292	top = top->below;
		1293	break;
		1294	}
		1295
		1296	last = top;
		1297	top = top->above;
1321	}	1298	}
1322	}
1323		1299
1324	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1300	/* Don't want top to be NULL, so set it to the last valid object */
1325	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1301	top = last;
1326	if (!QUERY_FLAG(op, FLAG_ALIVE))
1327	CLEAR_FLAG(op, FLAG_NO_STEAL);
1328		1302
1329	if (flag & INS_BELOW_ORIGINATOR) {	1303	/* We let update_position deal with figuring out what the space
1330	if (originator->map != op->map || originator->x != op->x ||	1304	* looks like instead of lots of conditions here.
1331	originator->y != op->y) {	1305	* makes things faster, and effectively the same result.
1332	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1306	*/
1333	abort();	1307
		1308	/* Have object 'fall below' other objects that block view.
		1309	* Unless those objects are exits, type 66
		1310	* If INS_ON_TOP is used, don't do this processing
		1311	* Need to find the object that in fact blocks view, otherwise
		1312	* stacking is a bit odd.
		1313	*/
		1314	if (!(flag & INS_ON_TOP) &&
		1315	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1316	{
		1317	for (last = top; last != floor; last = last->below)
		1318	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1319	break;
		1320	/* Check to see if we found the object that blocks view,
		1321	* and make sure we have a below pointer for it so that
		1322	* we can get inserted below this one, which requires we
		1323	* set top to the object below us.
		1324	*/
		1325	if (last && last->below && last != floor)
		1326	top = last->below;
		1327	}
		1328	} /* If objects on this space */
		1329
		1330	if (flag & INS_MAP_LOAD)
		1331	top = GET_MAP_TOP (op->map, op->x, op->y);
		1332
		1333	if (flag & INS_ABOVE_FLOOR_ONLY)
		1334	top = floor;
		1335
		1336	/* Top is the object that our object (op) is going to get inserted above.
		1337	*/
		1338
		1339	/* First object on this space */
		1340	if (!top)
		1341	{
		1342	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1343
		1344	if (op->above)
		1345	op->above->below = op;
		1346
		1347	op->below = NULL;
		1348	op->ms ().bot = op;
1334	}	1349	}
1335	op->above = originator;
1336	op->below = originator->below;
1337	if (op->below) op->below->above = op;
1338	else SET_MAP_OB(op->map, op->x, op->y, op);
1339	/* since *below* originator, no need to update top */
1340	originator->below = op;
1341	} else {	1350	else
1342	/* If there are other objects, then */
1343	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1344	object *last=NULL;
1345	/*
1346	* If there are multiple objects on this space, we do some trickier handling.
1347	* We've already dealt with merging if appropriate.
1348	* Generally, we want to put the new object on top. But if
1349	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1350	* floor, we want to insert above that and no further.
1351	* Also, if there are spell objects on this space, we stop processing
1352	* once we get to them. This reduces the need to traverse over all of
1353	* them when adding another one - this saves quite a bit of cpu time
1354	* when lots of spells are cast in one area. Currently, it is presumed
1355	* that flying non pickable objects are spell objects.
1356	*/
1357
1358	while (top != NULL) {
1359	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1360	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1361	if (QUERY_FLAG(top, FLAG_NO_PICK)
1362	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1363	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1364	{
1365	/* We insert above top, so we want this object below this */
1366	top=top->below;
1367	break;
1368	}
1369	last = top;
1370	top = top->above;
1371	}
1372	/* Don't want top to be NULL, so set it to the last valid object */
1373	top = last;
1374
1375	/* We let update_position deal with figuring out what the space
1376	* looks like instead of lots of conditions here.
1377	* makes things faster, and effectively the same result.
1378	*/
1379
1380	/* Have object 'fall below' other objects that block view.
1381	* Unless those objects are exits, type 66
1382	* If INS_ON_TOP is used, don't do this processing
1383	* Need to find the object that in fact blocks view, otherwise
1384	* stacking is a bit odd.
1385	*/
1386	if (!(flag & INS_ON_TOP) &&
1387	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1388	(op->face && !op->face->visibility)) {
1389	for (last=top; last != floor; last=last->below)
1390	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1391	/* Check to see if we found the object that blocks view,
1392	* and make sure we have a below pointer for it so that
1393	* we can get inserted below this one, which requires we
1394	* set top to the object below us.
1395	*/
1396	if (last && last->below && last != floor) top=last->below;
1397	}
1398	} /* If objects on this space */
1399	if (flag & INS_MAP_LOAD)
1400	top = GET_MAP_TOP(op->map,op->x,op->y);
1401	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1402
1403	/* Top is the object that our object (op) is going to get inserted above.
1404	*/
1405
1406	/* First object on this space */
1407	if (!top) {
1408	op->above = GET_MAP_OB(op->map, op->x, op->y);
1409	if (op->above) op->above->below = op;
1410	op->below = NULL;
1411	SET_MAP_OB(op->map, op->x, op->y, op);
1412	} else { /* get inserted into the stack above top */	1351	{ /* get inserted into the stack above top */
1413	op->above = top->above;	1352	op->above = top->above;
		1353
		1354	if (op->above)
1414	if (op->above) op->above->below = op;	1355	op->above->below = op;
		1356
1415	op->below = top;	1357	op->below = top;
1416	top->above = op;	1358	top->above = op;
1417	}	1359	}
		1360
1418	if (op->above==NULL)	1361	if (op->above == NULL)
1419	SET_MAP_TOP(op->map,op->x, op->y, op);	1362	op->ms ().top = op;
1420	} /* else not INS_BELOW_ORIGINATOR */	1363	} /* else not INS_BELOW_ORIGINATOR */
1421		1364
1422	if(op->type==PLAYER)	1365	if (op->type == PLAYER)
1423	op->contr->do_los=1;	1366	op->contr->do_los = 1;
1424		1367
1425	/* If we have a floor, we know the player, if any, will be above	1368	/* If we have a floor, we know the player, if any, will be above
1426	* it, so save a few ticks and start from there.	1369	* it, so save a few ticks and start from there.
1427	*/	1370	*/
1428	if (!(flag & INS_MAP_LOAD))	1371	if (!(flag & INS_MAP_LOAD))
1429	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1372	if (object *pl = op->ms ().player ())
1430	if (tmp->type == PLAYER)	1373	if (pl->contr->ns)
1431	tmp->contr->socket.update_look=1;	1374	pl->contr->ns->floorbox_update ();
1432	}
1433		1375
1434	/* If this object glows, it may affect lighting conditions that are	1376	/* If this object glows, it may affect lighting conditions that are
1435	* visible to others on this map. But update_all_los is really	1377	* visible to others on this map. But update_all_los is really
1436	* an inefficient way to do this, as it means los for all players	1378	* an inefficient way to do this, as it means los for all players
1437	* on the map will get recalculated. The players could very well	1379	* on the map will get recalculated. The players could very well
1438	* be far away from this change and not affected in any way -	1380	* be far away from this change and not affected in any way -
1439	* this should get redone to only look for players within range,	1381	* this should get redone to only look for players within range,
1440	* or just updating the P_NEED_UPDATE for spaces within this area	1382	* or just updating the P_NEED_UPDATE for spaces within this area
1441	* of effect may be sufficient.	1383	* of effect may be sufficient.
1442	*/	1384	*/
1443	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1385	if (op->map->darkness && (op->glow_radius != 0))
1444	update_all_los(op->map, op->x, op->y);	1386	update_all_los (op->map, op->x, op->y);
1445		1387
1446
1447	/* updates flags (blocked, alive, no magic, etc) for this map space */	1388	/* updates flags (blocked, alive, no magic, etc) for this map space */
1448	update_object(op,UP_OBJ_INSERT);	1389	update_object (op, UP_OBJ_INSERT);
1449		1390
		1391	INVOKE_OBJECT (INSERT, op);
1450		1392
1451	/* Don't know if moving this to the end will break anything. However,	1393	/* Don't know if moving this to the end will break anything. However,
1452	* we want to have update_look set above before calling this.	1394	* we want to have floorbox_update called before calling this.
1453	*	1395	*
1454	* check_move_on() must be after this because code called from	1396	* check_move_on() must be after this because code called from
1455	* check_move_on() depends on correct map flags (so functions like	1397	* check_move_on() depends on correct map flags (so functions like
1456	* blocked() and wall() work properly), and these flags are updated by	1398	* blocked() and wall() work properly), and these flags are updated by
1457	* update_object().	1399	* update_object().
1458	*/	1400	*/
1459		1401
1460	/* if this is not the head or flag has been passed, don't check walk on status */	1402	/* if this is not the head or flag has been passed, don't check walk on status */
1461
1462	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1403	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1404	{
1463	if (check_move_on(op, originator))	1405	if (check_move_on (op, originator))
1464	return NULL;	1406	return 0;
1465		1407
1466	/* If we are a multi part object, lets work our way through the check	1408	/* If we are a multi part object, lets work our way through the check
1467	* walk on's.	1409	* walk on's.
1468	*/	1410	*/
1469	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1411	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1470	if (check_move_on (tmp, originator))	1412	if (check_move_on (tmp, originator))
1471	return NULL;	1413	return 0;
1472	}	1414	}
		1415
1473	return op;	1416	return op;
1474	}	1417	}
1475		1418
1476	/* this function inserts an object in the map, but if it	1419	/* this function inserts an object in the map, but if it
1477	* finds an object of its own type, it'll remove that one first.	1420	* finds an object of its own type, it'll remove that one first.
1478	* op is the object to insert it under: supplies x and the map.	1421	* op is the object to insert it under: supplies x and the map.
1479	*/	1422	*/
		1423	void
1480	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1424	replace_insert_ob_in_map (const char *arch_string, object *op)
1481	object *tmp;	1425	{
1482	object *tmp1;	1426	object *tmp, *tmp1;
1483		1427
1484	/* first search for itself and remove any old instances */	1428	/* first search for itself and remove any old instances */
1485		1429
1486	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1430	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1487	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1431	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1488	remove_ob(tmp);	1432	tmp->destroy ();
1489	free_object(tmp);
1490	}
1491	}
1492		1433
1493	tmp1=arch_to_object(find_archetype(arch_string));	1434	tmp1 = arch_to_object (archetype::find (arch_string));
1494		1435
1495		1436	tmp1->x = op->x;
1496	tmp1->x = op->x; tmp1->y = op->y;	1437	tmp1->y = op->y;
1497	insert_ob_in_map(tmp1,op->map,op,0);	1438	insert_ob_in_map (tmp1, op->map, op, 0);
1498	}	1439	}
		1440
		1441	object *
		1442	object::insert_at (object *where, object *originator, int flags)
		1443	{
		1444	where->map->insert (this, where->x, where->y, originator, flags);
		1445	}
1499		1446
1500	/*	1447	/*
1501	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1448	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1502	* is returned contains nr objects, and the remaining parts contains	1449	* is returned contains nr objects, and the remaining parts contains
1503	* the rest (or is removed and freed if that number is 0).	1450	* the rest (or is removed and freed if that number is 0).
1504	* On failure, NULL is returned, and the reason put into the	1451	* On failure, NULL is returned, and the reason put into the
1505	* global static errmsg array.	1452	* global static errmsg array.
1506	*/	1453	*/
1507		1454	object *
1508	object *get_split_ob(object *orig_ob, uint32 nr) {	1455	get_split_ob (object *orig_ob, uint32 nr)
		1456	{
1509	object *newob;	1457	object *newob;
1510	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1458	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1511		1459
1512	if(orig_ob->nrof<nr) {	1460	if (orig_ob->nrof < nr)
1513	sprintf(errmsg,"There are only %d %ss.",	1461	{
1514	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1462	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1515	return NULL;	1463	return NULL;
1516	}	1464	}
		1465
1517	newob = object_create_clone(orig_ob);	1466	newob = object_create_clone (orig_ob);
		1467
1518	if((orig_ob->nrof-=nr)<1) {	1468	if ((orig_ob->nrof -= nr) < 1)
1519	if ( ! is_removed)	1469	orig_ob->destroy (1);
1520	remove_ob(orig_ob);
1521	free_object2(orig_ob, 1);
1522	}
1523	else if ( ! is_removed) {	1470	else if (!is_removed)
		1471	{
1524	if(orig_ob->env!=NULL)	1472	if (orig_ob->env != NULL)
1525	sub_weight (orig_ob->env,orig_ob->weight*nr);	1473	sub_weight (orig_ob->env, orig_ob->weight * nr);
1526	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1474	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1475	{
1527	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1476	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1528	LOG(llevDebug,
1529	"Error, Tried to split object whose map is not in memory.\n");	1477	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1530	return NULL;	1478	return NULL;
1531	}	1479	}
1532	}	1480	}
		1481
1533	newob->nrof=nr;	1482	newob->nrof = nr;
1534		1483
1535	return newob;	1484	return newob;
1536	}	1485	}
1537		1486
1538	/*	1487	/*
1539	* decrease_ob_nr(object, number) decreases a specified number from	1488	* decrease_ob_nr(object, number) decreases a specified number from
1540	* the amount of an object. If the amount reaches 0, the object	1489	* the amount of an object. If the amount reaches 0, the object
1541	* is subsequently removed and freed.	1490	* is subsequently removed and freed.
1542	*	1491	*
1543	* Return value: 'op' if something is left, NULL if the amount reached 0	1492	* Return value: 'op' if something is left, NULL if the amount reached 0
1544	*/	1493	*/
1545		1494
		1495	object *
1546	object *decrease_ob_nr (object *op, uint32 i)	1496	decrease_ob_nr (object *op, uint32 i)
1547	{	1497	{
1548	object *tmp;	1498	object *tmp;
1549	player *pl;
1550		1499
1551	if (i == 0) /* objects with op->nrof require this check */	1500	if (i == 0) /* objects with op->nrof require this check */
1552	return op;	1501	return op;
1553		1502
1554	if (i > op->nrof)	1503	if (i > op->nrof)
1555	i = op->nrof;	1504	i = op->nrof;
1556		1505
1557	if (QUERY_FLAG (op, FLAG_REMOVED))	1506	if (QUERY_FLAG (op, FLAG_REMOVED))
		1507	op->nrof -= i;
		1508	else if (op->env)
		1509	{
		1510	/* is this object in the players inventory, or sub container
		1511	* therein?
		1512	*/
		1513	tmp = op->in_player ();
		1514	/* nope. Is this a container the player has opened?
		1515	* If so, set tmp to that player.
		1516	* IMO, searching through all the players will mostly
		1517	* likely be quicker than following op->env to the map,
		1518	* and then searching the map for a player.
		1519	*/
		1520	if (!tmp)
		1521	for_all_players (pl)
		1522	if (pl->ob->container == op->env)
		1523	{
		1524	tmp = pl->ob;
		1525	break;
		1526	}
		1527
		1528	if (i < op->nrof)
		1529	{
		1530	sub_weight (op->env, op->weight * i);
		1531	op->nrof -= i;
		1532	if (tmp)
		1533	esrv_send_item (tmp, op);
		1534	}
		1535	else
		1536	{
		1537	op->remove ();
		1538	op->nrof = 0;
		1539	if (tmp)
		1540	esrv_del_item (tmp->contr, op->count);
		1541	}
1558	{	1542	}
		1543	else
		1544	{
		1545	object *above = op->above;
		1546
		1547	if (i < op->nrof)
1559	op->nrof -= i;	1548	op->nrof -= i;
1560	}	1549	else
1561	else if (op->env != NULL)
1562	{
1563	/* is this object in the players inventory, or sub container
1564	* therein?
1565	*/	1550	{
1566	tmp = is_player_inv (op->env);	1551	op->remove ();
1567	/* nope. Is this a container the player has opened?	1552	op->nrof = 0;
1568	* If so, set tmp to that player.
1569	* IMO, searching through all the players will mostly
1570	* likely be quicker than following op->env to the map,
1571	* and then searching the map for a player.
1572	*/
1573	if (!tmp) {
1574	for (pl=first_player; pl; pl=pl->next)
1575	if (pl->ob->container == op->env) break;
1576	if (pl) tmp=pl->ob;
1577	else tmp=NULL;
1578	}	1553	}
1579		1554
1580	if (i < op->nrof) {
1581	sub_weight (op->env, op->weight * i);
1582	op->nrof -= i;
1583	if (tmp) {
1584	esrv_send_item(tmp, op);
1585	}
1586	} else {
1587	remove_ob (op);
1588	op->nrof = 0;
1589	if (tmp) {
1590	esrv_del_item(tmp->contr, op->count);
1591	}
1592	}
1593	}
1594	else
1595	{
1596	object *above = op->above;
1597
1598	if (i < op->nrof) {
1599	op->nrof -= i;
1600	} else {
1601	remove_ob (op);
1602	op->nrof = 0;
1603	}
1604	/* Since we just removed op, op->above is null */	1555	/* Since we just removed op, op->above is null */
1605	for (tmp = above; tmp != NULL; tmp = tmp->above)	1556	for (tmp = above; tmp; tmp = tmp->above)
1606	if (tmp->type == PLAYER) {	1557	if (tmp->type == PLAYER)
		1558	{
1607	if (op->nrof)	1559	if (op->nrof)
1608	esrv_send_item(tmp, op);	1560	esrv_send_item (tmp, op);
1609	else	1561	else
1610	esrv_del_item(tmp->contr, op->count);	1562	esrv_del_item (tmp->contr, op->count);
1611	}	1563	}
1612	}	1564	}
1613		1565
1614	if (op->nrof) {	1566	if (op->nrof)
1615	return op;	1567	return op;
1616	} else {	1568	else
1617	free_object (op);	1569	{
		1570	op->destroy ();
1618	return NULL;	1571	return 0;
1619	}	1572	}
1620	}	1573	}
1621		1574
1622	/*	1575	/*
1623	* add_weight(object, weight) adds the specified weight to an object,	1576	* add_weight(object, weight) adds the specified weight to an object,
1624	* and also updates how much the environment(s) is/are carrying.	1577	* and also updates how much the environment(s) is/are carrying.
1625	*/	1578	*/
1626		1579
		1580	void
1627	void add_weight (object *op, signed long weight) {	1581	add_weight (object *op, signed long weight)
		1582	{
1628	while (op!=NULL) {	1583	while (op != NULL)
		1584	{
1629	if (op->type == CONTAINER) {	1585	if (op->type == CONTAINER)
1630	weight=(signed long)(weight*(100-op->stats.Str)/100);	1586	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1631	}	1587
1632	op->carrying+=weight;	1588	op->carrying += weight;
1633	op=op->env;	1589	op = op->env;
1634	}	1590	}
1635	}	1591	}
1636		1592
		1593	object *
		1594	insert_ob_in_ob (object *op, object *where)
		1595	{
		1596	if (!where)
		1597	{
		1598	char *dump = dump_object (op);
		1599	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1600	free (dump);
		1601	return op;
		1602	}
		1603
		1604	if (where->head)
		1605	{
		1606	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1607	where = where->head;
		1608	}
		1609
		1610	return where->insert (op);
		1611	}
		1612
1637	/*	1613	/*
1638	* insert_ob_in_ob(op,environment):	1614	* env->insert (op)
1639	* This function inserts the object op in the linked list	1615	* This function inserts the object op in the linked list
1640	* inside the object environment.	1616	* inside the object environment.
1641	*	1617	*
1642	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1643	* the inventory at the last position or next to other objects of the same
1644	* type.
1645	* Frank: Now sorted by type, archetype and magic!
1646	*
1647	* The function returns now pointer to inserted item, and return value can	1618	* The function returns now pointer to inserted item, and return value can
1648	* be != op, if items are merged. -Tero	1619	* be != op, if items are merged. -Tero
1649	*/	1620	*/
1650		1621
1651	object *insert_ob_in_ob(object *op,object *where) {	1622	object *
		1623	object::insert (object *op)
		1624	{
1652	object *tmp, *otmp;	1625	object *tmp, *otmp;
1653		1626
1654	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1627	if (!QUERY_FLAG (op, FLAG_REMOVED))
1655	dump_object(op);	1628	op->remove ();
1656	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1629
1657	return op;
1658	}
1659	if(where==NULL) {
1660	dump_object(op);
1661	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1662	return op;
1663	}
1664	if (where->head) {
1665	LOG(llevDebug,
1666	"Warning: Tried to insert object wrong part of multipart object.\n");
1667	where = where->head;
1668	}
1669	if (op->more) {	1630	if (op->more)
		1631	{
1670	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1632	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1671	&op->name, op->count);
1672	return op;	1633	return op;
1673	}	1634	}
		1635
1674	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1636	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1675	CLEAR_FLAG(op, FLAG_REMOVED);	1637	CLEAR_FLAG (op, FLAG_REMOVED);
1676	if(op->nrof) {	1638	if (op->nrof)
		1639	{
1677	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1640	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1678	if ( CAN_MERGE(tmp,op) ) {	1641	if (object::can_merge (tmp, op))
		1642	{
1679	/* return the original object and remove inserted object	1643	/* return the original object and remove inserted object
1680	(client needs the original object) */	1644	(client needs the original object) */
1681	tmp->nrof += op->nrof;	1645	tmp->nrof += op->nrof;
1682	/* Weight handling gets pretty funky. Since we are adding to	1646	/* Weight handling gets pretty funky. Since we are adding to
1683	* tmp->nrof, we need to increase the weight.	1647	* tmp->nrof, we need to increase the weight.
1684	*/	1648	*/
1685	add_weight (where, op->weight*op->nrof);	1649	add_weight (this, op->weight * op->nrof);
1686	SET_FLAG(op, FLAG_REMOVED);	1650	SET_FLAG (op, FLAG_REMOVED);
1687	free_object(op); /* free the inserted object */	1651	op->destroy (); /* free the inserted object */
1688	op = tmp;	1652	op = tmp;
1689	remove_ob (op); /* and fix old object's links */	1653	op->remove (); /* and fix old object's links */
1690	CLEAR_FLAG(op, FLAG_REMOVED);	1654	CLEAR_FLAG (op, FLAG_REMOVED);
1691	break;	1655	break;
1692	}	1656	}
1693		1657
1694	/* I assume combined objects have no inventory	1658	/* I assume combined objects have no inventory
1695	* We add the weight - this object could have just been removed	1659	* We add the weight - this object could have just been removed
1696	* (if it was possible to merge). calling remove_ob will subtract	1660	* (if it was possible to merge). calling remove_ob will subtract
1697	* the weight, so we need to add it in again, since we actually do	1661	* the weight, so we need to add it in again, since we actually do
1698	* the linking below	1662	* the linking below
1699	*/	1663	*/
1700	add_weight (where, op->weight*op->nrof);	1664	add_weight (this, op->weight * op->nrof);
		1665	}
1701	} else	1666	else
1702	add_weight (where, (op->weight+op->carrying));	1667	add_weight (this, (op->weight + op->carrying));
1703		1668
1704	otmp=is_player_inv(where);	1669	otmp = this->in_player ();
1705	if (otmp&&otmp->contr!=NULL) {	1670	if (otmp && otmp->contr)
1706	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1671	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1707	fix_player(otmp);	1672	otmp->update_stats ();
1708	}
1709		1673
1710	op->map=NULL;	1674	op->map = 0;
1711	op->env=where;	1675	op->env = this;
1712	op->above=NULL;	1676	op->above = 0;
1713	op->below=NULL;	1677	op->below = 0;
1714	op->x=0,op->y=0;	1678	op->x = 0, op->y = 0;
1715		1679
1716	/* reset the light list and los of the players on the map */	1680	/* reset the light list and los of the players on the map */
1717	if((op->glow_radius!=0)&&where->map)	1681	if ((op->glow_radius != 0) && map)
1718	{	1682	{
1719	#ifdef DEBUG_LIGHTS	1683	#ifdef DEBUG_LIGHTS
1720	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1684	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1721	op->name);
1722	#endif /* DEBUG_LIGHTS */	1685	#endif /* DEBUG_LIGHTS */
1723	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1686	if (map->darkness)
		1687	update_all_los (map, x, y);
1724	}	1688	}
1725		1689
1726	/* Client has no idea of ordering so lets not bother ordering it here.	1690	/* Client has no idea of ordering so lets not bother ordering it here.
1727	* It sure simplifies this function...	1691	* It sure simplifies this function...
1728	*/	1692	*/
1729	if (where->inv==NULL)	1693	if (!inv)
1730	where->inv=op;	1694	inv = op;
1731	else {	1695	else
		1696	{
1732	op->below = where->inv;	1697	op->below = inv;
1733	op->below->above = op;	1698	op->below->above = op;
1734	where->inv = op;	1699	inv = op;
1735	}	1700	}
		1701
		1702	INVOKE_OBJECT (INSERT, this);
		1703
1736	return op;	1704	return op;
1737	}	1705	}
1738		1706
1739	/*	1707	/*
1740	* Checks if any objects has a move_type that matches objects	1708	* Checks if any objects has a move_type that matches objects
…		…
1754	*	1722	*
1755	* MSW 2001-07-08: Check all objects on space, not just those below	1723	* MSW 2001-07-08: Check all objects on space, not just those below
1756	* object being inserted. insert_ob_in_map may not put new objects	1724	* object being inserted. insert_ob_in_map may not put new objects
1757	* on top.	1725	* on top.
1758	*/	1726	*/
1759		1727	int
1760	int check_move_on (object *op, object *originator)	1728	check_move_on (object *op, object *originator)
1761	{	1729	{
1762	object *tmp;	1730	object *tmp;
1763	tag_t tag;
1764	mapstruct *m=op->map;	1731	maptile *m = op->map;
1765	int x=op->x, y=op->y;	1732	int x = op->x, y = op->y;
		1733
1766	MoveType move_on, move_slow, move_block;	1734	MoveType move_on, move_slow, move_block;
1767		1735
1768	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1736	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1769	return 0;	1737	return 0;
1770		1738
1771	tag = op->count;
1772
1773	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1739	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1774	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1740	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1775	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1741	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1776		1742
1777	/* if nothing on this space will slow op down or be applied,	1743	/* if nothing on this space will slow op down or be applied,
1778	* no need to do checking below. have to make sure move_type	1744	* no need to do checking below. have to make sure move_type
1779	* is set, as lots of objects don't have it set - we treat that	1745	* is set, as lots of objects don't have it set - we treat that
1780	* as walking.	1746	* as walking.
1781	*/	1747	*/
1782	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1748	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1783	return 0;	1749	return 0;
1784		1750
1785	/* This is basically inverse logic of that below - basically,	1751	/* This is basically inverse logic of that below - basically,
1786	* if the object can avoid the move on or slow move, they do so,	1752	* if the object can avoid the move on or slow move, they do so,
1787	* but can't do it if the alternate movement they are using is	1753	* but can't do it if the alternate movement they are using is
1788	* blocked. Logic on this seems confusing, but does seem correct.	1754	* blocked. Logic on this seems confusing, but does seem correct.
1789	*/	1755	*/
1790	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1756	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1791	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1757	return 0;
1792		1758
1793	/* The objects have to be checked from top to bottom.	1759	/* The objects have to be checked from top to bottom.
1794	* Hence, we first go to the top:	1760	* Hence, we first go to the top:
1795	*/	1761	*/
1796		1762
1797	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1763	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
1798	tmp->above!=NULL; tmp=tmp->above) {	1764	{
1799	/* Trim the search when we find the first other spell effect	1765	/* Trim the search when we find the first other spell effect
1800	* this helps performance so that if a space has 50 spell objects,	1766	* this helps performance so that if a space has 50 spell objects,
1801	* we don't need to check all of them.	1767	* we don't need to check all of them.
1802	*/	1768	*/
1803	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1769	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1770	break;
		1771	}
		1772
		1773	for (; tmp; tmp = tmp->below)
1804	}	1774	{
1805	for(;tmp!=NULL; tmp=tmp->below) {	1775	if (tmp == op)
1806	if (tmp == op) continue; /* Can't apply yourself */	1776	continue; /* Can't apply yourself */
1807		1777
1808	/* Check to see if one of the movement types should be slowed down.	1778	/* Check to see if one of the movement types should be slowed down.
1809	* Second check makes sure that the movement types not being slowed	1779	* Second check makes sure that the movement types not being slowed
1810	* (~slow_move) is not blocked on this space - just because the	1780	* (~slow_move) is not blocked on this space - just because the
1811	* space doesn't slow down swimming (for example), if you can't actually	1781	* space doesn't slow down swimming (for example), if you can't actually
1812	* swim on that space, can't use it to avoid the penalty.	1782	* swim on that space, can't use it to avoid the penalty.
1813	*/	1783	*/
1814	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1784	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1785	{
1815	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1786	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1816	((op->move_type & tmp->move_slow) &&
1817	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1787	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1788	{
1818		1789
1819	float diff;	1790	float
1820
1821	diff = tmp->move_slow_penalty*FABS(op->speed);	1791	diff = tmp->move_slow_penalty * FABS (op->speed);
		1792
1822	if (op->type == PLAYER) {	1793	if (op->type == PLAYER)
1823	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1794	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1824	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1795	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1825	diff /= 4.0;	1796	diff /= 4.0;
1826	}	1797
1827	}
1828	op->speed_left -= diff;	1798	op->speed_left -= diff;
1829	}	1799	}
1830	}	1800	}
1831		1801
1832	/* Basically same logic as above, except now for actual apply. */	1802	/* Basically same logic as above, except now for actual apply. */
1833	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1803	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1834	((op->move_type & tmp->move_on) &&
1835	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1804	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1836		1805	{
1837	move_apply(tmp, op, originator);	1806	move_apply (tmp, op, originator);
		1807
1838	if (was_destroyed (op, tag))	1808	if (op->destroyed ())
1839	return 1;	1809	return 1;
1840		1810
1841	/* what the person/creature stepped onto has moved the object	1811	/* what the person/creature stepped onto has moved the object
1842	* someplace new. Don't process any further - if we did,	1812	* someplace new. Don't process any further - if we did,
1843	* have a feeling strange problems would result.	1813	* have a feeling strange problems would result.
1844	*/	1814	*/
1845	if (op->map != m || op->x != x || op->y != y) return 0;	1815	if (op->map != m || op->x != x || op->y != y)
		1816	return 0;
1846	}	1817	}
1847	}	1818	}
		1819
1848	return 0;	1820	return 0;
1849	}	1821	}
1850		1822
1851	/*	1823	/*
1852	* present_arch(arch, map, x, y) searches for any objects with	1824	* present_arch(arch, map, x, y) searches for any objects with
1853	* a matching archetype at the given map and coordinates.	1825	* a matching archetype at the given map and coordinates.
1854	* The first matching object is returned, or NULL if none.	1826	* The first matching object is returned, or NULL if none.
1855	*/	1827	*/
1856		1828	object *
1857	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1829	present_arch (const archetype *at, maptile *m, int x, int y)
1858	object *tmp;	1830	{
1859	if(m==NULL || out_of_map(m,x,y)) {	1831	if (m == NULL || out_of_map (m, x, y))
		1832	{
1860	LOG(llevError,"Present_arch called outside map.\n");	1833	LOG (llevError, "Present_arch called outside map.\n");
1861	return NULL;	1834	return NULL;
1862	}	1835	}
		1836
1863	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1837	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1864	if(tmp->arch == at)	1838	if (tmp->arch == at)
1865	return tmp;	1839	return tmp;
		1840
1866	return NULL;	1841	return NULL;
1867	}	1842	}
1868		1843
1869	/*	1844	/*
1870	* present(type, map, x, y) searches for any objects with	1845	* present(type, map, x, y) searches for any objects with
1871	* a matching type variable at the given map and coordinates.	1846	* a matching type variable at the given map and coordinates.
1872	* The first matching object is returned, or NULL if none.	1847	* The first matching object is returned, or NULL if none.
1873	*/	1848	*/
1874		1849	object *
1875	object *present(unsigned char type,mapstruct *m, int x,int y) {	1850	present (unsigned char type, maptile *m, int x, int y)
1876	object *tmp;	1851	{
1877	if(out_of_map(m,x,y)) {	1852	if (out_of_map (m, x, y))
		1853	{
1878	LOG(llevError,"Present called outside map.\n");	1854	LOG (llevError, "Present called outside map.\n");
1879	return NULL;	1855	return NULL;
1880	}	1856	}
		1857
1881	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1858	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1882	if(tmp->type==type)	1859	if (tmp->type == type)
1883	return tmp;	1860	return tmp;
		1861
1884	return NULL;	1862	return NULL;
1885	}	1863	}
1886		1864
1887	/*	1865	/*
1888	* present_in_ob(type, object) searches for any objects with	1866	* present_in_ob(type, object) searches for any objects with
1889	* a matching type variable in the inventory of the given object.	1867	* a matching type variable in the inventory of the given object.
1890	* The first matching object is returned, or NULL if none.	1868	* The first matching object is returned, or NULL if none.
1891	*/	1869	*/
1892		1870	object *
1893	object *present_in_ob(unsigned char type, const object *op) {	1871	present_in_ob (unsigned char type, const object *op)
1894	object *tmp;	1872	{
1895	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1873	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1896	if(tmp->type==type)	1874	if (tmp->type == type)
1897	return tmp;	1875	return tmp;
		1876
1898	return NULL;	1877	return NULL;
1899	}	1878	}
1900		1879
1901	/*	1880	/*
1902	* present_in_ob (type, str, object) searches for any objects with	1881	* present_in_ob (type, str, object) searches for any objects with
…		…
1910	* str is the string to match against. Note that we match against	1889	* str is the string to match against. Note that we match against
1911	* the object name, not the archetype name. this is so that the	1890	* the object name, not the archetype name. this is so that the
1912	* spell code can use one object type (force), but change it's name	1891	* spell code can use one object type (force), but change it's name
1913	* to be unique.	1892	* to be unique.
1914	*/	1893	*/
1915		1894	object *
1916	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1895	present_in_ob_by_name (int type, const char *str, const object *op)
1917	object *tmp;	1896	{
1918
1919	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1897	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1920	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1898	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1921	return tmp;	1899	return tmp;
1922	}	1900
1923	return NULL;	1901	return 0;
1924	}	1902	}
1925		1903
1926	/*	1904	/*
1927	* present_arch_in_ob(archetype, object) searches for any objects with	1905	* present_arch_in_ob(archetype, object) searches for any objects with
1928	* a matching archetype in the inventory of the given object.	1906	* a matching archetype in the inventory of the given object.
1929	* The first matching object is returned, or NULL if none.	1907	* The first matching object is returned, or NULL if none.
1930	*/	1908	*/
1931		1909	object *
1932	object *present_arch_in_ob(const archetype *at, const object *op) {	1910	present_arch_in_ob (const archetype *at, const object *op)
1933	object *tmp;	1911	{
1934	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1912	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1935	if( tmp->arch == at)	1913	if (tmp->arch == at)
1936	return tmp;	1914	return tmp;
		1915
1937	return NULL;	1916	return NULL;
1938	}	1917	}
1939		1918
1940	/*	1919	/*
1941	* activate recursively a flag on an object inventory	1920	* activate recursively a flag on an object inventory
1942	*/	1921	*/
		1922	void
1943	void flag_inv(object*op, int flag){	1923	flag_inv (object *op, int flag)
1944	object *tmp;	1924	{
1945	if(op->inv)	1925	if (op->inv)
1946	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1926	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1927	{
1947	SET_FLAG(tmp, flag);	1928	SET_FLAG (tmp, flag);
1948	flag_inv(tmp,flag);	1929	flag_inv (tmp, flag);
1949	}	1930	}
		1931	}
		1932
1950	}/*	1933	/*
1951	* desactivate recursively a flag on an object inventory	1934	* deactivate recursively a flag on an object inventory
1952	*/	1935	*/
		1936	void
1953	void unflag_inv(object*op, int flag){	1937	unflag_inv (object *op, int flag)
1954	object *tmp;	1938	{
1955	if(op->inv)	1939	if (op->inv)
1956	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1940	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1941	{
1957	CLEAR_FLAG(tmp, flag);	1942	CLEAR_FLAG (tmp, flag);
1958	unflag_inv(tmp,flag);	1943	unflag_inv (tmp, flag);
1959	}	1944	}
1960	}	1945	}
1961		1946
1962	/*	1947	/*
1963	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1948	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1964	* all it's inventory (recursively).	1949	* all it's inventory (recursively).
1965	* If checksums are used, a player will get set_cheat called for	1950	* If checksums are used, a player will get set_cheat called for
1966	* him/her-self and all object carried by a call to this function.	1951	* him/her-self and all object carried by a call to this function.
1967	*/	1952	*/
1968		1953	void
1969	void set_cheat(object *op) {	1954	set_cheat (object *op)
		1955	{
1970	SET_FLAG(op, FLAG_WAS_WIZ);	1956	SET_FLAG (op, FLAG_WAS_WIZ);
1971	flag_inv(op, FLAG_WAS_WIZ);	1957	flag_inv (op, FLAG_WAS_WIZ);
1972	}	1958	}
1973		1959
1974	/*	1960	/*
1975	* find_free_spot(object, map, x, y, start, stop) will search for	1961	* find_free_spot(object, map, x, y, start, stop) will search for
1976	* a spot at the given map and coordinates which will be able to contain	1962	* a spot at the given map and coordinates which will be able to contain
…		…
1990	* because arch_blocked (now ob_blocked) needs to know the movement type	1976	* because arch_blocked (now ob_blocked) needs to know the movement type
1991	* to know if the space in question will block the object. We can't use	1977	* to know if the space in question will block the object. We can't use
1992	* the archetype because that isn't correct if the monster has been	1978	* the archetype because that isn't correct if the monster has been
1993	* customized, changed states, etc.	1979	* customized, changed states, etc.
1994	*/	1980	*/
1995		1981	int
1996	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	1982	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		1983	{
1997	int i,index=0, flag;	1984	int index = 0, flag;
1998	static int altern[SIZEOFFREE];	1985	int altern[SIZEOFFREE];
1999		1986
2000	for(i=start;i<stop;i++) {	1987	for (int i = start; i < stop; i++)
		1988	{
2001	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	1989	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2002	if(!flag)	1990	if (!flag)
2003	altern[index++]=i;	1991	altern [index++] = i;
2004		1992
2005	/* Basically, if we find a wall on a space, we cut down the search size.	1993	/* Basically, if we find a wall on a space, we cut down the search size.
2006	* In this way, we won't return spaces that are on another side of a wall.	1994	* In this way, we won't return spaces that are on another side of a wall.
2007	* This mostly work, but it cuts down the search size in all directions -	1995	* This mostly work, but it cuts down the search size in all directions -
2008	* if the space being examined only has a wall to the north and empty	1996	* if the space being examined only has a wall to the north and empty
2009	* spaces in all the other directions, this will reduce the search space	1997	* spaces in all the other directions, this will reduce the search space
2010	* to only the spaces immediately surrounding the target area, and	1998	* to only the spaces immediately surrounding the target area, and
2011	* won't look 2 spaces south of the target space.	1999	* won't look 2 spaces south of the target space.
2012	*/	2000	*/
2013	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2001	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2014	stop=maxfree[i];	2002	stop = maxfree[i];
2015	}	2003	}
2016	if(!index) return -1;	2004
		2005	if (!index)
		2006	return -1;
		2007
2017	return altern[RANDOM()%index];	2008	return altern[RANDOM () % index];
2018	}	2009	}
2019		2010
2020	/*	2011	/*
2021	* find_first_free_spot(archetype, mapstruct, x, y) works like	2012	* find_first_free_spot(archetype, maptile, x, y) works like
2022	* find_free_spot(), but it will search max number of squares.	2013	* find_free_spot(), but it will search max number of squares.
2023	* But it will return the first available spot, not a random choice.	2014	* But it will return the first available spot, not a random choice.
2024	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2015	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2025	*/	2016	*/
2026		2017	int
2027	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2018	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2028	int i;	2019	{
2029	for(i=0;i<SIZEOFFREE;i++) {	2020	for (int i = 0; i < SIZEOFFREE; i++)
2030	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2021	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2031	return i;	2022	return i;
2032	}	2023
2033	return -1;	2024	return -1;
2034	}	2025	}
2035		2026
2036	/*	2027	/*
2037	* The function permute(arr, begin, end) randomly reorders the array	2028	* The function permute(arr, begin, end) randomly reorders the array
2038	* arr[begin..end-1].	2029	* arr[begin..end-1].
		2030	* now uses a fisher-yates shuffle, old permute was broken
2039	*/	2031	*/
		2032	static void
2040	static void permute(int *arr, int begin, int end)	2033	permute (int *arr, int begin, int end)
2041	{	2034	{
2042	int i, j, tmp, len;	2035	arr += begin;
		2036	end -= begin;
2043		2037
2044	len = end-begin;	2038	while (--end)
2045	for(i = begin; i < end; i++)	2039	swap (arr [end], arr [RANDOM () % (end + 1)]);
2046	{
2047	j = begin+RANDOM()%len;
2048
2049	tmp = arr[i];
2050	arr[i] = arr[j];
2051	arr[j] = tmp;
2052	}
2053	}	2040	}
2054		2041
2055	/* new function to make monster searching more efficient, and effective!	2042	/* new function to make monster searching more efficient, and effective!
2056	* This basically returns a randomized array (in the passed pointer) of	2043	* This basically returns a randomized array (in the passed pointer) of
2057	* the spaces to find monsters. In this way, it won't always look for	2044	* the spaces to find monsters. In this way, it won't always look for
2058	* monsters to the north first. However, the size of the array passed	2045	* monsters to the north first. However, the size of the array passed
2059	* covers all the spaces, so within that size, all the spaces within	2046	* covers all the spaces, so within that size, all the spaces within
2060	* the 3x3 area will be searched, just not in a predictable order.	2047	* the 3x3 area will be searched, just not in a predictable order.
2061	*/	2048	*/
		2049	void
2062	void get_search_arr(int *search_arr)	2050	get_search_arr (int *search_arr)
2063	{	2051	{
2064	int i;	2052	int i;
2065		2053
2066	for(i = 0; i < SIZEOFFREE; i++)	2054	for (i = 0; i < SIZEOFFREE; i++)
2067	{
2068	search_arr[i] = i;	2055	search_arr[i] = i;
2069	}
2070		2056
2071	permute(search_arr, 1, SIZEOFFREE1+1);	2057	permute (search_arr, 1, SIZEOFFREE1 + 1);
2072	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2058	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2073	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2059	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2074	}	2060	}
2075		2061
2076	/*	2062	/*
2077	* find_dir(map, x, y, exclude) will search some close squares in the	2063	* find_dir(map, x, y, exclude) will search some close squares in the
2078	* given map at the given coordinates for live objects.	2064	* given map at the given coordinates for live objects.
…		…
2083	* Perhaps incorrectly, but I'm making the assumption that exclude	2069	* Perhaps incorrectly, but I'm making the assumption that exclude
2084	* is actually want is going to try and move there. We need this info	2070	* is actually want is going to try and move there. We need this info
2085	* because we have to know what movement the thing looking to move	2071	* because we have to know what movement the thing looking to move
2086	* there is capable of.	2072	* there is capable of.
2087	*/	2073	*/
2088		2074	int
2089	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2075	find_dir (maptile *m, int x, int y, object *exclude)
		2076	{
2090	int i,max=SIZEOFFREE, mflags;	2077	int i, max = SIZEOFFREE, mflags;
		2078
2091	sint16 nx, ny;	2079	sint16 nx, ny;
2092	object *tmp;	2080	object *tmp;
2093	mapstruct *mp;	2081	maptile *mp;
		2082
2094	MoveType blocked, move_type;	2083	MoveType blocked, move_type;
2095		2084
2096	if (exclude && exclude->head) {	2085	if (exclude && exclude->head)
		2086	{
2097	exclude = exclude->head;	2087	exclude = exclude->head;
2098	move_type = exclude->move_type;	2088	move_type = exclude->move_type;
2099	} else {	2089	}
		2090	else
		2091	{
2100	/* If we don't have anything, presume it can use all movement types. */	2092	/* If we don't have anything, presume it can use all movement types. */
2101	move_type=MOVE_ALL;	2093	move_type = MOVE_ALL;
		2094	}
		2095
		2096	for (i = 1; i < max; i++)
2102	}	2097	{
2103
2104	for(i=1;i<max;i++) {
2105	mp = m;	2098	mp = m;
2106	nx = x + freearr_x[i];	2099	nx = x + freearr_x[i];
2107	ny = y + freearr_y[i];	2100	ny = y + freearr_y[i];
2108		2101
2109	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2102	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2103
2110	if (mflags & P_OUT_OF_MAP) {	2104	if (mflags & P_OUT_OF_MAP)
		2105	max = maxfree[i];
		2106	else
		2107	{
		2108	mapspace &ms = mp->at (nx, ny);
		2109
		2110	blocked = ms.move_block;
		2111
		2112	if ((move_type & blocked) == move_type)
2111	max = maxfree[i];	2113	max = maxfree[i];
2112	} else {
2113	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2114
2115	if ((move_type & blocked) == move_type) {
2116	max=maxfree[i];
2117	} else if (mflags & P_IS_ALIVE) {	2114	else if (mflags & P_IS_ALIVE)
2118	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2115	{
		2116	for (tmp = ms.bot; tmp; tmp = tmp->above)
2119	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2117	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2120	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2118	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2121	break;	2119	break;
2122	}	2120
2123	}
2124	if(tmp) {	2121	if (tmp)
2125	return freedir[i];	2122	return freedir[i];
2126	}
2127	}	2123	}
2128	}	2124	}
2129	}	2125	}
		2126
2130	return 0;	2127	return 0;
2131	}	2128	}
2132		2129
2133	/*	2130	/*
2134	* distance(object 1, object 2) will return the square of the	2131	* distance(object 1, object 2) will return the square of the
2135	* distance between the two given objects.	2132	* distance between the two given objects.
2136	*/	2133	*/
2137		2134	int
2138	int distance(const object *ob1, const object *ob2) {	2135	distance (const object *ob1, const object *ob2)
2139	int i;	2136	{
2140	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2137	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2141	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2142	return i;
2143	}	2138	}
2144		2139
2145	/*	2140	/*
2146	* find_dir_2(delta-x,delta-y) will return a direction in which	2141	* find_dir_2(delta-x,delta-y) will return a direction in which
2147	* an object which has subtracted the x and y coordinates of another	2142	* an object which has subtracted the x and y coordinates of another
2148	* object, needs to travel toward it.	2143	* object, needs to travel toward it.
2149	*/	2144	*/
2150		2145	int
2151	int find_dir_2(int x, int y) {	2146	find_dir_2 (int x, int y)
		2147	{
2152	int q;	2148	int q;
2153		2149
2154	if(y)	2150	if (y)
2155	q=x*100/y;	2151	q = x * 100 / y;
2156	else if (x)	2152	else if (x)
2157	q= -300*x;	2153	q = -300 * x;
2158	else	2154	else
2159	return 0;	2155	return 0;
2160		2156
2161	if(y>0) {	2157	if (y > 0)
		2158	{
2162	if(q < -242)	2159	if (q < -242)
2163	return 3 ;	2160	return 3;
2164	if (q < -41)	2161	if (q < -41)
2165	return 2 ;	2162	return 2;
2166	if (q < 41)	2163	if (q < 41)
2167	return 1 ;	2164	return 1;
2168	if (q < 242)	2165	if (q < 242)
2169	return 8 ;	2166	return 8;
2170	return 7 ;	2167	return 7;
2171	}	2168	}
2172		2169
2173	if (q < -242)	2170	if (q < -242)
2174	return 7 ;	2171	return 7;
2175	if (q < -41)	2172	if (q < -41)
2176	return 6 ;	2173	return 6;
2177	if (q < 41)	2174	if (q < 41)
2178	return 5 ;	2175	return 5;
2179	if (q < 242)	2176	if (q < 242)
2180	return 4 ;	2177	return 4;
2181		2178
2182	return 3 ;	2179	return 3;
2183	}	2180	}
2184		2181
2185	/*	2182	/*
2186	* absdir(int): Returns a number between 1 and 8, which represent	2183	* absdir(int): Returns a number between 1 and 8, which represent
2187	* the "absolute" direction of a number (it actually takes care of	2184	* the "absolute" direction of a number (it actually takes care of
2188	* "overflow" in previous calculations of a direction).	2185	* "overflow" in previous calculations of a direction).
2189	*/	2186	*/
2190		2187
		2188	int
2191	int absdir(int d) {	2189	absdir (int d)
2192	while(d<1) d+=8;	2190	{
2193	while(d>8) d-=8;	2191	while (d < 1)
		2192	d += 8;
		2193
		2194	while (d > 8)
		2195	d -= 8;
		2196
2194	return d;	2197	return d;
2195	}	2198	}
2196		2199
2197	/*	2200	/*
2198	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2201	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2199	* between two directions (which are expected to be absolute (see absdir())	2202	* between two directions (which are expected to be absolute (see absdir())
2200	*/	2203	*/
2201		2204
		2205	int
2202	int dirdiff(int dir1, int dir2) {	2206	dirdiff (int dir1, int dir2)
		2207	{
2203	int d;	2208	int d;
		2209
2204	d = abs(dir1 - dir2);	2210	d = abs (dir1 - dir2);
2205	if(d>4)	2211	if (d > 4)
2206	d = 8 - d;	2212	d = 8 - d;
		2213
2207	return d;	2214	return d;
2208	}	2215	}
2209		2216
2210	/* peterm:	2217	/* peterm:
2211	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2218	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2214	* This basically means that if direction is 15, then it could either go	2221	* This basically means that if direction is 15, then it could either go
2215	* direction 4, 14, or 16 to get back to where we are.	2222	* direction 4, 14, or 16 to get back to where we are.
2216	* Moved from spell_util.c to object.c with the other related direction	2223	* Moved from spell_util.c to object.c with the other related direction
2217	* functions.	2224	* functions.
2218	*/	2225	*/
2219
2220	int reduction_dir[SIZEOFFREE][3] = {	2226	int reduction_dir[SIZEOFFREE][3] = {
2221	{0,0,0}, /* 0 */	2227	{0, 0, 0}, /* 0 */
2222	{0,0,0}, /* 1 */	2228	{0, 0, 0}, /* 1 */
2223	{0,0,0}, /* 2 */	2229	{0, 0, 0}, /* 2 */
2224	{0,0,0}, /* 3 */	2230	{0, 0, 0}, /* 3 */
2225	{0,0,0}, /* 4 */	2231	{0, 0, 0}, /* 4 */
2226	{0,0,0}, /* 5 */	2232	{0, 0, 0}, /* 5 */
2227	{0,0,0}, /* 6 */	2233	{0, 0, 0}, /* 6 */
2228	{0,0,0}, /* 7 */	2234	{0, 0, 0}, /* 7 */
2229	{0,0,0}, /* 8 */	2235	{0, 0, 0}, /* 8 */
2230	{8,1,2}, /* 9 */	2236	{8, 1, 2}, /* 9 */
2231	{1,2,-1}, /* 10 */	2237	{1, 2, -1}, /* 10 */
2232	{2,10,12}, /* 11 */	2238	{2, 10, 12}, /* 11 */
2233	{2,3,-1}, /* 12 */	2239	{2, 3, -1}, /* 12 */
2234	{2,3,4}, /* 13 */	2240	{2, 3, 4}, /* 13 */
2235	{3,4,-1}, /* 14 */	2241	{3, 4, -1}, /* 14 */
2236	{4,14,16}, /* 15 */	2242	{4, 14, 16}, /* 15 */
2237	{5,4,-1}, /* 16 */	2243	{5, 4, -1}, /* 16 */
2238	{4,5,6}, /* 17 */	2244	{4, 5, 6}, /* 17 */
2239	{6,5,-1}, /* 18 */	2245	{6, 5, -1}, /* 18 */
2240	{6,20,18}, /* 19 */	2246	{6, 20, 18}, /* 19 */
2241	{7,6,-1}, /* 20 */	2247	{7, 6, -1}, /* 20 */
2242	{6,7,8}, /* 21 */	2248	{6, 7, 8}, /* 21 */
2243	{7,8,-1}, /* 22 */	2249	{7, 8, -1}, /* 22 */
2244	{8,22,24}, /* 23 */	2250	{8, 22, 24}, /* 23 */
2245	{8,1,-1}, /* 24 */	2251	{8, 1, -1}, /* 24 */
2246	{24,9,10}, /* 25 */	2252	{24, 9, 10}, /* 25 */
2247	{9,10,-1}, /* 26 */	2253	{9, 10, -1}, /* 26 */
2248	{10,11,-1}, /* 27 */	2254	{10, 11, -1}, /* 27 */
2249	{27,11,29}, /* 28 */	2255	{27, 11, 29}, /* 28 */
2250	{11,12,-1}, /* 29 */	2256	{11, 12, -1}, /* 29 */
2251	{12,13,-1}, /* 30 */	2257	{12, 13, -1}, /* 30 */
2252	{12,13,14}, /* 31 */	2258	{12, 13, 14}, /* 31 */
2253	{13,14,-1}, /* 32 */	2259	{13, 14, -1}, /* 32 */
2254	{14,15,-1}, /* 33 */	2260	{14, 15, -1}, /* 33 */
2255	{33,15,35}, /* 34 */	2261	{33, 15, 35}, /* 34 */
2256	{16,15,-1}, /* 35 */	2262	{16, 15, -1}, /* 35 */
2257	{17,16,-1}, /* 36 */	2263	{17, 16, -1}, /* 36 */
2258	{18,17,16}, /* 37 */	2264	{18, 17, 16}, /* 37 */
2259	{18,17,-1}, /* 38 */	2265	{18, 17, -1}, /* 38 */
2260	{18,19,-1}, /* 39 */	2266	{18, 19, -1}, /* 39 */
2261	{41,19,39}, /* 40 */	2267	{41, 19, 39}, /* 40 */
2262	{19,20,-1}, /* 41 */	2268	{19, 20, -1}, /* 41 */
2263	{20,21,-1}, /* 42 */	2269	{20, 21, -1}, /* 42 */
2264	{20,21,22}, /* 43 */	2270	{20, 21, 22}, /* 43 */
2265	{21,22,-1}, /* 44 */	2271	{21, 22, -1}, /* 44 */
2266	{23,22,-1}, /* 45 */	2272	{23, 22, -1}, /* 45 */
2267	{45,47,23}, /* 46 */	2273	{45, 47, 23}, /* 46 */
2268	{23,24,-1}, /* 47 */	2274	{23, 24, -1}, /* 47 */
2269	{24,9,-1}}; /* 48 */	2275	{24, 9, -1}
		2276	}; /* 48 */
2270		2277
2271	/* Recursive routine to step back and see if we can	2278	/* Recursive routine to step back and see if we can
2272	* find a path to that monster that we found. If not,	2279	* find a path to that monster that we found. If not,
2273	* we don't bother going toward it. Returns 1 if we	2280	* we don't bother going toward it. Returns 1 if we
2274	* can see a direct way to get it	2281	* can see a direct way to get it
2275	* Modified to be map tile aware -.MSW	2282	* Modified to be map tile aware -.MSW
2276	*/	2283	*/
2277		2284	int
2278
2279	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2285	can_see_monsterP (maptile *m, int x, int y, int dir)
		2286	{
2280	sint16 dx, dy;	2287	sint16 dx, dy;
2281	int mflags;	2288	int mflags;
2282		2289
		2290	if (dir < 0)
2283	if(dir<0) return 0; /* exit condition: invalid direction */	2291	return 0; /* exit condition: invalid direction */
2284		2292
2285	dx = x + freearr_x[dir];	2293	dx = x + freearr_x[dir];
2286	dy = y + freearr_y[dir];	2294	dy = y + freearr_y[dir];
2287		2295
2288	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2296	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2289		2297
2290	/* This functional arguably was incorrect before - it was	2298	/* This functional arguably was incorrect before - it was
2291	* checking for P_WALL - that was basically seeing if	2299	* checking for P_WALL - that was basically seeing if
2292	* we could move to the monster - this is being more	2300	* we could move to the monster - this is being more
2293	* literal on if we can see it. To know if we can actually	2301	* literal on if we can see it. To know if we can actually
2294	* move to the monster, we'd need the monster passed in or	2302	* move to the monster, we'd need the monster passed in or
2295	* at least its move type.	2303	* at least its move type.
2296	*/	2304	*/
2297	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2305	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2306	return 0;
2298		2307
2299	/* yes, can see. */	2308	/* yes, can see. */
2300	if(dir < 9) return 1;	2309	if (dir < 9)
		2310	return 1;
		2311
2301	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2312	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2302	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2313	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2303	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2314	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2304	}	2315	}
2305		2316
2306
2307
2308	/*	2317	/*
2309	* can_pick(picker, item): finds out if an object is possible to be	2318	* can_pick(picker, item): finds out if an object is possible to be
2310	* picked up by the picker. Returnes 1 if it can be	2319	* picked up by the picker. Returnes 1 if it can be
2311	* picked up, otherwise 0.	2320	* picked up, otherwise 0.
2312	*	2321	*
…		…
2314	* core dumps if they do.	2323	* core dumps if they do.
2315	*	2324	*
2316	* Add a check so we can't pick up invisible objects (0.93.8)	2325	* Add a check so we can't pick up invisible objects (0.93.8)
2317	*/	2326	*/
2318		2327
		2328	int
2319	int can_pick(const object *who, const object *item) {	2329	can_pick (const object *who, const object *item)
		2330	{
2320	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2331	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2321	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2332	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2322	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2333	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2323	(who->type==PLAYER||item->weight<who->weight/3));
2324	}	2334	}
2325
2326		2335
2327	/*	2336	/*
2328	* create clone from object to another	2337	* create clone from object to another
2329	*/	2338	*/
		2339	object *
2330	object *object_create_clone (object *asrc) {	2340	object_create_clone (object *asrc)
		2341	{
2331	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2342	object *dst = 0, *tmp, *src, *part, *prev, *item;
2332		2343
2333	if(!asrc) return NULL;	2344	if (!asrc)
		2345	return 0;
		2346
2334	src = asrc;	2347	src = asrc;
2335	if(src->head)	2348	if (src->head)
2336	src = src->head;	2349	src = src->head;
2337		2350
2338	prev = NULL;	2351	prev = 0;
2339	for(part = src; part; part = part->more) {	2352	for (part = src; part; part = part->more)
2340	tmp = get_object();	2353	{
2341	copy_object(part,tmp);	2354	tmp = part->clone ();
2342	tmp->x -= src->x;	2355	tmp->x -= src->x;
2343	tmp->y -= src->y;	2356	tmp->y -= src->y;
		2357
2344	if(!part->head) {	2358	if (!part->head)
		2359	{
2345	dst = tmp;	2360	dst = tmp;
2346	tmp->head = NULL;
2347	} else {
2348	tmp->head = dst;	2361	tmp->head = 0;
2349	}	2362	}
		2363	else
		2364	tmp->head = dst;
		2365
2350	tmp->more = NULL;	2366	tmp->more = 0;
		2367
2351	if(prev)	2368	if (prev)
2352	prev->more = tmp;	2369	prev->more = tmp;
		2370
2353	prev = tmp;	2371	prev = tmp;
2354	}	2372	}
2355	/*** copy inventory ***/	2373
2356	for(item = src->inv; item; item = item->below) {	2374	for (item = src->inv; item; item = item->below)
2357	(void) insert_ob_in_ob(object_create_clone(item),dst);	2375	insert_ob_in_ob (object_create_clone (item), dst);
2358	}
2359		2376
2360	return dst;	2377	return dst;
2361	}
2362
2363	/* return true if the object was destroyed, 0 otherwise */
2364	int was_destroyed (const object *op, tag_t old_tag)
2365	{
2366	/* checking for FLAG_FREED isn't necessary, but makes this function more
2367	* robust */
2368	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2369	}	2378	}
2370		2379
2371	/* GROS - Creates an object using a string representing its content. */	2380	/* GROS - Creates an object using a string representing its content. */
2372	/* Basically, we save the content of the string to a temp file, then call */	2381	/* Basically, we save the content of the string to a temp file, then call */
2373	/* load_object on it. I admit it is a highly inefficient way to make things, */	2382	/* load_object on it. I admit it is a highly inefficient way to make things, */
2374	/* but it was simple to make and allows reusing the load_object function. */	2383	/* but it was simple to make and allows reusing the load_object function. */
2375	/* Remember not to use load_object_str in a time-critical situation. */	2384	/* Remember not to use load_object_str in a time-critical situation. */
2376	/* Also remember that multiparts objects are not supported for now. */	2385	/* Also remember that multiparts objects are not supported for now. */
2377		2386	object *
2378	object* load_object_str(const char *obstr)	2387	load_object_str (const char *obstr)
2379	{	2388	{
2380	object *op;	2389	object *op;
2381	char filename[MAX_BUF];	2390	char filename[MAX_BUF];
		2391
2382	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2392	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2383		2393
2384	FILE *tempfile=fopen(filename,"w");	2394	FILE *tempfile = fopen (filename, "w");
		2395
2385	if (tempfile == NULL)	2396	if (tempfile == NULL)
2386	{	2397	{
2387	LOG(llevError,"Error - Unable to access load object temp file\n");	2398	LOG (llevError, "Error - Unable to access load object temp file\n");
2388	return NULL;	2399	return NULL;
2389	};	2400	}
		2401
2390	fprintf(tempfile,obstr);	2402	fprintf (tempfile, obstr);
2391	fclose(tempfile);	2403	fclose (tempfile);
2392		2404
2393	op=get_object();	2405	op = object::create ();
2394		2406
2395	object_thawer thawer (filename);	2407	object_thawer thawer (filename);
2396		2408
2397	if (thawer)	2409	if (thawer)
2398	load_object(thawer,op,0);	2410	load_object (thawer, op, 0);
2399		2411
2400	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2412	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2401	CLEAR_FLAG(op,FLAG_REMOVED);	2413	CLEAR_FLAG (op, FLAG_REMOVED);
2402		2414
2403	return op;	2415	return op;
2404	}	2416	}
2405		2417
2406	/* This returns the first object in who's inventory that	2418	/* This returns the first object in who's inventory that
2407	* has the same type and subtype match.	2419	* has the same type and subtype match.
2408	* returns NULL if no match.	2420	* returns NULL if no match.
2409	*/	2421	*/
		2422	object *
2410	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2423	find_obj_by_type_subtype (const object *who, int type, int subtype)
2411	{	2424	{
2412	object *tmp;
2413
2414	for (tmp=who->inv; tmp; tmp=tmp->below)	2425	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2415	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2426	if (tmp->type == type && tmp->subtype == subtype)
		2427	return tmp;
2416		2428
2417	return NULL;	2429	return 0;
2418	}	2430	}
2419		2431
2420	/* If ob has a field named key, return the link from the list,	2432	/* If ob has a field named key, return the link from the list,
2421	* otherwise return NULL.	2433	* otherwise return NULL.
2422	*	2434	*
2423	* key must be a passed in shared string - otherwise, this won't	2435	* key must be a passed in shared string - otherwise, this won't
2424	* do the desired thing.	2436	* do the desired thing.
2425	*/	2437	*/
		2438	key_value *
2426	key_value * get_ob_key_link(const object * ob, const char * key) {	2439	get_ob_key_link (const object *ob, const char *key)
2427	key_value * link;	2440	{
2428
2429	for (link = ob->key_values; link != NULL; link = link->next) {	2441	for (key_value *link = ob->key_values; link; link = link->next)
2430	if (link->key == key) {	2442	if (link->key == key)
2431	return link;	2443	return link;
2432	}	2444
2433	}	2445	return 0;
2434		2446	}
2435	return NULL;
2436	}
2437		2447
2438	/*	2448	/*
2439	* Returns the value of op has an extra_field for key, or NULL.	2449	* Returns the value of op has an extra_field for key, or NULL.
2440	*	2450	*
2441	* The argument doesn't need to be a shared string.	2451	* The argument doesn't need to be a shared string.
2442	*	2452	*
2443	* The returned string is shared.	2453	* The returned string is shared.
2444	*/	2454	*/
		2455	const char *
2445	const char * get_ob_key_value(const object * op, const char * const key) {	2456	get_ob_key_value (const object *op, const char *const key)
		2457	{
2446	key_value * link;	2458	key_value *link;
2447	const char * canonical_key;	2459	shstr_cmp canonical_key (key);
		2460
		2461	if (!canonical_key)
2448		2462	{
2449	canonical_key = shstr::find (key);
2450
2451	if (canonical_key == NULL) {
2452	/* 1. There being a field named key on any object	2463	/* 1. There being a field named key on any object
2453	* implies there'd be a shared string to find.	2464	* implies there'd be a shared string to find.
2454	* 2. Since there isn't, no object has this field.	2465	* 2. Since there isn't, no object has this field.
2455	* 3. Therefore, *this* object doesn't have this field.	2466	* 3. Therefore, *this* object doesn't have this field.
2456	*/	2467	*/
2457	return NULL;	2468	return 0;
2458	}	2469	}
2459		2470
2460	/* This is copied from get_ob_key_link() above -	2471	/* This is copied from get_ob_key_link() above -
2461	* only 4 lines, and saves the function call overhead.	2472	* only 4 lines, and saves the function call overhead.
2462	*/	2473	*/
2463	for (link = op->key_values; link != NULL; link = link->next) {	2474	for (link = op->key_values; link; link = link->next)
2464	if (link->key == canonical_key) {	2475	if (link->key == canonical_key)
2465	return link->value;	2476	return link->value;
2466	}	2477
2467	}	2478	return 0;
2468	return NULL;
2469	}	2479	}
2470		2480
2471		2481
2472	/*	2482	/*
2473	* Updates the canonical_key in op to value.	2483	* Updates the canonical_key in op to value.
…		…
2477	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2487	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2478	* keys.	2488	* keys.
2479	*	2489	*
2480	* Returns TRUE on success.	2490	* Returns TRUE on success.
2481	*/	2491	*/
		2492	int
2482	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2493	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2494	{
2483	key_value * field = NULL, *last=NULL;	2495	key_value *field = NULL, *last = NULL;
2484		2496
2485	for (field=op->key_values; field != NULL; field=field->next) {	2497	for (field = op->key_values; field != NULL; field = field->next)
		2498	{
2486	if (field->key != canonical_key) {	2499	if (field->key != canonical_key)
		2500	{
2487	last = field;	2501	last = field;
2488	continue;	2502	continue;
2489	}	2503	}
2490		2504
2491	if (value)	2505	if (value)
2492	field->value = value;	2506	field->value = value;
2493	else {	2507	else
		2508	{
2494	/* Basically, if the archetype has this key set,	2509	/* Basically, if the archetype has this key set,
2495	* we need to store the null value so when we save	2510	* we need to store the null value so when we save
2496	* it, we save the empty value so that when we load,	2511	* it, we save the empty value so that when we load,
2497	* we get this value back again.	2512	* we get this value back again.
2498	*/	2513	*/
2499	if (get_ob_key_link (&op->arch->clone, canonical_key))	2514	if (get_ob_key_link (&op->arch->clone, canonical_key))
2500	field->value = 0;	2515	field->value = 0;
		2516	else
		2517	{
		2518	if (last)
		2519	last->next = field->next;
2501	else	2520	else
2502	{
2503	if (last) last->next = field->next;
2504	else op->key_values = field->next;	2521	op->key_values = field->next;
2505		2522
2506	delete field;	2523	delete field;
2507	}	2524	}
2508	}	2525	}
2509	return TRUE;	2526	return TRUE;
2510	}	2527	}
2511	/* IF we get here, key doesn't exist */	2528	/* IF we get here, key doesn't exist */
2512		2529
2513	/* No field, we'll have to add it. */	2530	/* No field, we'll have to add it. */
2514		2531
2515	if (!add_key) {	2532	if (!add_key)
2516	return FALSE;	2533	return FALSE;
2517	}	2534
2518	/* There isn't any good reason to store a null	2535	/* There isn't any good reason to store a null
2519	* value in the key/value list. If the archetype has	2536	* value in the key/value list. If the archetype has
2520	* this key, then we should also have it, so shouldn't	2537	* this key, then we should also have it, so shouldn't
2521	* be here. If user wants to store empty strings,	2538	* be here. If user wants to store empty strings,
2522	* should pass in ""	2539	* should pass in ""
2523	*/	2540	*/
2524	if (value == NULL) return TRUE;	2541	if (value == NULL)
2525
2526	field = new key_value;
2527
2528	field->key = canonical_key;
2529	field->value = value;
2530	/* Usual prepend-addition. */
2531	field->next = op->key_values;
2532	op->key_values = field;
2533
2534	return TRUE;	2542	return TRUE;
		2543
		2544	field = new key_value;
		2545
		2546	field->key = canonical_key;
		2547	field->value = value;
		2548	/* Usual prepend-addition. */
		2549	field->next = op->key_values;
		2550	op->key_values = field;
		2551
		2552	return TRUE;
2535	}	2553	}
2536		2554
2537	/*	2555	/*
2538	* Updates the key in op to value.	2556	* Updates the key in op to value.
2539	*	2557	*
…		…
2541	* and not add new ones.	2559	* and not add new ones.
2542	* In general, should be little reason FALSE is ever passed in for add_key	2560	* In general, should be little reason FALSE is ever passed in for add_key
2543	*	2561	*
2544	* Returns TRUE on success.	2562	* Returns TRUE on success.
2545	*/	2563	*/
		2564	int
2546	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2565	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2547	{	2566	{
2548	shstr key_ (key);	2567	shstr key_ (key);
		2568
2549	return set_ob_key_value_s (op, key_, value, add_key);	2569	return set_ob_key_value_s (op, key_, value, add_key);
2550	}	2570	}
		2571
		2572	object::depth_iterator::depth_iterator (object *container)
		2573	: iterator_base (container)
		2574	{
		2575	while (item->inv)
		2576	item = item->inv;
		2577	}
		2578
		2579	void
		2580	object::depth_iterator::next ()
		2581	{
		2582	if (item->below)
		2583	{
		2584	item = item->below;
		2585
		2586	while (item->inv)
		2587	item = item->inv;
		2588	}
		2589	else
		2590	item = item->env;
		2591	}
		2592
		2593	// return a suitable string describing an objetc in enough detail to find it
		2594	const char *
		2595	object::debug_desc (char *info) const
		2596	{
		2597	char info2[256 * 3];
		2598	char *p = info;
		2599
		2600	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2601	count,
		2602	&name,
		2603	title ? " " : "",
		2604	title ? (const char *)title : "");
		2605
		2606	if (env)
		2607	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2608
		2609	if (map)
		2610	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2611
		2612	return info;
		2613	}
		2614
		2615	const char *
		2616	object::debug_desc () const
		2617	{
		2618	static char info[256 * 3];
		2619	return debug_desc (info);
		2620	}
		2621

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