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Comparing deliantra/server/common/object.C (file contents):
Revision 1.18 by root, Fri Sep 8 16:51:42 2006 UTC vs.
Revision 1.74 by root, Wed Dec 20 09:14:21 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.18 2006/09/08 16:51:42 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	};
59		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	}
60		133
61	/* 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
62	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	{
63	key_value * wants_field;	138	key_value *wants_field;
64		139
65	/* 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
66	* 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
67	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
68	*/	143	*/
69		144
70	/* For each field in wants, */	145	/* For each field in wants, */
71	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next) {	146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)
		147	{
72	key_value * has_field;	148	key_value *has_field;
73		149
74	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
75	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)
76		154	{
77	if (has_field == NULL) {
78	/* No field with that name. */	155	/* No field with that name. */
79	return FALSE;	156	return FALSE;
80	}
81		157	}
		158
82	/* Found the matching field. */	159	/* Found the matching field. */
83	if (has_field->value != wants_field->value) {	160	if (has_field->value != wants_field->value)
		161	{
84	/* 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. */
85	return FALSE;	163	return FALSE;
86	}	164	}
87		165
88	/* 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. */
89	}
90		167	}
		168
91	/* 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. */
92	return TRUE;	170	return TRUE;
93	}	171	}
94		172
95	/* 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
96	static int compare_ob_value_lists(const object * ob1, const object * ob2) {	175	compare_ob_value_lists (const object *ob1, const object *ob2)
		176	{
97	/* 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,
98	* so we need to run the comparison *twice*. :(	178	* so we need to run the comparison *twice*. :(
99	*/	179	*/
100	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);
101	}	181	}
102		182
103	/* 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
104	* they can be merged together.	184	* they can be merged together.
105	*	185	*
106	* 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
107	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
108	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
109	*	189	*
110	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
111	*	191	*
112	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
113	* check weight	193	* check weight
114	*/	194	*/
115		195
116	bool
117	object::can_merge (object *ob1, object *ob2)	196	bool object::can_merge_slow (object *ob1, object *ob2)
118	{	197	{
119	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
120	if ((ob1 == ob2) || (ob1->type != ob2->type))	199	if (ob1 == ob2
		200	|| ob1->type != ob2->type
		201	|| ob1->speed != ob2->speed
		202	|| ob1->value != ob2->value
		203	|| ob1->name != ob2->name)
121	return 0;	204	return 0;
122		205
123	if (ob1->speed != ob2->speed)	206	//TODO: this ain't working well, use nicer and correct overflow check
124	return 0;
125
126	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that	207	/* Do not merge objects if nrof would overflow. We use 1UL<<31 since that
127	* value could not be stored in a sint32 (which unfortunately sometimes is	208	* value could not be stored in a sint32 (which unfortunately sometimes is
128	* used to store nrof).	209	* used to store nrof).
129	*/	210	*/
130	if (ob1->nrof + ob2->nrof >= 1UL << 31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
140	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
141		222
142	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
143	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
144		225
145		226	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
146	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
147	* being locked in inventory should prevent merging.
148	* 0x4 in flags3 is CLIENT_SENT
149	*/
150	if ((ob1->arch != ob2->arch) ||
151	(ob1->flags[0] != ob2->flags[0]) ||
152	(ob1->flags[1] != ob2->flags[1]) ||
153	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
154	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
155	(ob1->name != ob2->name) ||	228	|| ob1->name != ob2->name
156	(ob1->title != ob2->title) ||	229	|| ob1->title != ob2->title
157	(ob1->msg != ob2->msg) ||	230	|| ob1->msg != ob2->msg
158	(ob1->weight != ob2->weight) ||	231	|| ob1->weight != ob2->weight
159	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
160	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
161	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
162	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
163	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
164	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
165	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
166	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
167	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
168	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
169	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
170	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
171	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
172	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
173	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
174	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
175	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
176	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
177	(ob1->move_slow_penalty != ob2->move_slow_penalty))	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
178	return 0;	251	return 0;
179		252
180	/* This is really a spellbook check - really, we should	253	/* This is really a spellbook check - really, we should
181	* check all objects in the inventory.	254	* check all objects in the inventory.
182	*/	255	*/
183	if (ob1->inv || ob2->inv)	256	if (ob1->inv || ob2->inv)
184	{	257	{
185	/* if one object has inventory but the other doesn't, not equiv */	258	/* if one object has inventory but the other doesn't, not equiv */
186	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
187	return 0;	260	return 0;
188		261
189	/* Now check to see if the two inventory objects could merge */	262	/* Now check to see if the two inventory objects could merge */
190	if (!CAN_MERGE (ob1->inv, ob2->inv))	263	if (!object::can_merge (ob1->inv, ob2->inv))
191	return 0;	264	return 0;
192		265
193	/* inventory ok - still need to check rest of this object to see	266	/* inventory ok - still need to check rest of this object to see
194	* if it is valid.	267	* if it is valid.
195	*/	268	*/
196	}	269	}
…		…
204		277
205	/* Note sure why the following is the case - either the object has to	278	/* Note sure why the following is the case - either the object has to
206	* be animated or have a very low speed. Is this an attempted monster	279	* be animated or have a very low speed. Is this an attempted monster
207	* check?	280	* check?
208	*/	281	*/
209	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
210	&& FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)
211	return 0;	283	return 0;
212		284
213	switch (ob1->type)	285	switch (ob1->type)
214	{	286	{
215	case SCROLL:	287	case SCROLL:
216	if (ob1->level != ob2->level)	288	if (ob1->level != ob2->level)
217	return 0;	289	return 0;
218	break;	290	break;
219	}	291	}
220		292
221	if (ob1->key_values != NULL || ob2->key_values != NULL)	293	if (ob1->key_values != NULL || ob2->key_values != NULL)
222	{	294	{
223	/* At least one of these has key_values. */	295	/* At least one of these has key_values. */
224	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))	296	if ((ob1->key_values == NULL) != (ob2->key_values == NULL))
225	/* One has fields, but the other one doesn't. */	297	/* One has fields, but the other one doesn't. */
226	return 0;	298	return 0;
227	else if (!compare_ob_value_lists (ob1, ob2))	299	else if (!compare_ob_value_lists (ob1, ob2))
228	return 0;	300	return 0;
229	}	301	}
230		302
231	//TODO: generate an event or call into perl for additional checks	303	//TODO: generate an event or call into perl for additional checks
232	if (ob1->self || ob2->self)	304	if (ob1->self || ob2->self)
233	{	305	{
234	ob1->optimise ();	306	ob1->optimise ();
235	ob2->optimise ();	307	ob2->optimise ();
236		308
237	if (ob1->self || ob2->self)	309	if (ob1->self || ob2->self)
238	return 0;	310	return 0;
239	}	311	}
240		312
241	/* Everything passes, must be OK. */	313	/* Everything passes, must be OK. */
242	return 1;	314	return 1;
243	}	315	}
		316
244	/*	317	/*
245	* sum_weight() is a recursive function which calculates the weight	318	* sum_weight() is a recursive function which calculates the weight
246	* an object is carrying. It goes through in figures out how much	319	* an object is carrying. It goes through in figures out how much
247	* containers are carrying, and sums it up.	320	* containers are carrying, and sums it up.
248	*/	321	*/
249	signed long sum_weight(object *op) {	322	long
		323	sum_weight (object *op)
		324	{
250	signed long sum;	325	long sum;
251	object *inv;	326	object *inv;
		327
252	for(sum = 0, inv = op->inv; inv != NULL; inv = inv->below) {	328	for (sum = 0, inv = op->inv; inv != NULL; inv = inv->below)
		329	{
253	if (inv->inv)	330	if (inv->inv)
254	sum_weight(inv);	331	sum_weight (inv);
255	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);	332	sum += inv->carrying + inv->weight * (inv->nrof ? inv->nrof : 1);
256	}	333	}
		334
257	if (op->type == CONTAINER && op->stats.Str)	335	if (op->type == CONTAINER && op->stats.Str)
258	sum = (sum * (100 - op->stats.Str))/100;	336	sum = (sum * (100 - op->stats.Str)) / 100;
		337
259	if(op->carrying != sum)	338	if (op->carrying != sum)
260	op->carrying = sum;	339	op->carrying = sum;
		340
261	return sum;	341	return sum;
262	}	342	}
263		343
264	/**	344	/**
265	* Return the outermost environment object for a given object.	345	* Return the outermost environment object for a given object.
266	*/	346	*/
267		347
		348	object *
268	object *object_get_env_recursive (object *op) {	349	object_get_env_recursive (object *op)
		350	{
269	while (op->env != NULL)	351	while (op->env != NULL)
270	op = op->env;	352	op = op->env;
271	return op;	353	return op;
272	}
273
274	/*
275	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
276	* a better check. We basically keeping traversing up until we can't
277	* or find a player.
278	*/
279
280	object *is_player_inv (object *op) {
281	for (;op!=NULL&&op->type!=PLAYER; op=op->env)
282	if (op->env==op)
283	op->env = NULL;
284	return op;
285	}	354	}
286		355
287	/*	356	/*
288	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
289	* Some error messages.	358	* Some error messages.
290	* The result of the dump is stored in the static global errmsg array.	359	* The result of the dump is stored in the static global errmsg array.
291	*/	360	*/
292		361
293	void dump_object2(object *op) {	362	char *
294	errmsg[0] = 0;
295	return;
296	//TODO//D#d#
297	#if 0
298	char *cp;
299	/* object *tmp;*/
300
301	if(op->arch!=NULL) {
302	strcat(errmsg,"arch ");
303	strcat(errmsg,op->arch->name?op->arch->name:"(null)");
304	strcat(errmsg,"\n");
305	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
306	strcat(errmsg,cp);
307	#if 0
308	/* Don't dump player diffs - they are too long, mostly meaningless, and
309	* will overflow the buffer.
310	* Changed so that we don't dump inventory either. This may
311	* also overflow the buffer.
312	*/
313	if(op->type!=PLAYER && (cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
314	strcat(errmsg,cp);
315	for (tmp=op->inv; tmp; tmp=tmp->below)
316	dump_object2(tmp);
317	#endif
318	strcat(errmsg,"end\n");
319	} else {
320	strcat(errmsg,"Object ");
321	if (op->name==NULL) strcat(errmsg, "(null)");
322	else strcat(errmsg,op->name);
323	strcat(errmsg,"\n");
324	#if 0
325	if((cp=get_ob_diff(op,&empty_archetype->clone))!=NULL)
326	strcat(errmsg,cp);
327	for (tmp=op->inv; tmp; tmp=tmp->below)
328	dump_object2(tmp);
329	#endif
330	strcat(errmsg,"end\n");
331	}
332	#endif
333	}
334
335	/*
336	* Dumps an object. Returns output in the static global errmsg array.
337	*/
338
339	void dump_object(object *op) {	363	dump_object (object *op)
340	if(op==NULL) {	364	{
341	strcpy(errmsg,"[NULL pointer]");	365	if (!op)
342	return;	366	return strdup ("[NULLOBJ]");
343	}
344	errmsg[0]='\0';
345	dump_object2(op);
346	}
347		367
348	void dump_all_objects(void) {	368	object_freezer freezer;
349	object *op;	369	save_object (freezer, op, 3);
350	for(op=objects;op!=NULL;op=op->next) {	370	return freezer.as_string ();
351	dump_object(op);
352	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
353	}
354	}	371	}
355		372
356	/*	373	/*
357	* get_nearest_part(multi-object, object 2) returns the part of the	374	* get_nearest_part(multi-object, object 2) returns the part of the
358	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
359	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
360	*/	377	*/
361		378
		379	object *
362	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
363	object *tmp,*closest;	382	object *tmp, *closest;
364	int last_dist,i;	383	int last_dist, i;
		384
365	if(op->more==NULL)	385	if (op->more == NULL)
366	return op;	386	return op;
367	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
368	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
369	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
370	return closest;	390	return closest;
371	}	391	}
372		392
373	/*	393	/*
374	* Returns the object which has the count-variable equal to the argument.	394	* Returns the object which has the count-variable equal to the argument.
375	*/	395	*/
376		396
		397	object *
377	object *find_object(tag_t i) {	398	find_object (tag_t i)
378	object *op;	399	{
379	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
380	if(op->count==i)	401	if (op->count == i)
381	break;	402	return op;
		403
382	return op;	404	return 0;
383	}	405	}
384		406
385	/*	407	/*
386	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
387	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
388	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
389	*/	411	*/
390		412
		413	object *
391	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
392	const char *name = shstr::find (str);	415	{
		416	shstr_cmp str_ (str);
393	object *op;	417	object *op;
		418
394	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
395	if(&op->name == name)	420	if (op->name == str_)
396	break;	421	break;
397		422
398	return op;	423	return op;
399	}	424	}
400		425
		426	void
401	void free_all_object_data ()	427	free_all_object_data ()
402	{	428	{
403	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
404	}
405
406	/*
407	* Returns the object which this object marks as being the owner.
408	* A id-scheme is used to avoid pointing to objects which have been
409	* freed and are now reused. If this is detected, the owner is
410	* set to NULL, and NULL is returned.
411	* Changed 2004-02-12 - if the player is setting at the play again
412	* prompt, he is removed, and we don't want to treat him as an owner of
413	* anything, so check removed flag. I don't expect that this should break
414	* anything - once an object is removed, it is basically dead anyways.
415	*/
416
417	object *get_owner(object *op) {
418	if(op->owner==NULL)
419	return NULL;
420
421	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
422	op->owner->count==op->ownercount)
423	return op->owner;
424
425	op->owner=NULL;
426	op->ownercount=0;
427	return NULL;
428	}
429
430	void clear_owner(object *op)
431	{
432	if (!op) return;
433
434	if (op->owner && op->ownercount == op->owner->count)
435	op->owner->refcount--;
436
437	op->owner = NULL;
438	op->ownercount = 0;
439	}	430	}
440		431
441	/*	432	/*
442	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
443	* skill and experience objects.	434	* skill and experience objects.
444	*/	435	*/
445	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
446	{	438	{
447	if(owner==NULL||op==NULL)	439	if (!owner)
448	return;	440	return;
449		441
450	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
451	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* Add a check for ownercounts in here, as I got into an endless loop
452	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
453	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
454	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
455	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
456	*/	448	*/
457	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
458	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
459		451
460	/* IF the owner still has an owner, we did not resolve to a final owner.
461	* so lets not add to that.
462	*/
463	if (owner->owner) return;
464
465	op->owner=owner;	452	this->owner = owner;
466
467	op->ownercount=owner->count;
468	owner->refcount++;
469
470	}
471
472	/* Set the owner to clone's current owner and set the skill and experience
473	* objects to clone's objects (typically those objects that where the owner's
474	* current skill and experience objects at the time when clone's owner was
475	* set - not the owner's current skill and experience objects).
476	*
477	* Use this function if player created an object (e.g. fire bullet, swarm
478	* spell), and this object creates further objects whose kills should be
479	* accounted for the player's original skill, even if player has changed
480	* skills meanwhile.
481	*/
482	void copy_owner (object *op, object *clone)
483	{
484	object *owner = get_owner (clone);
485	if (owner == NULL) {
486	/* players don't have owners - they own themselves. Update
487	* as appropriate.
488	*/
489	if (clone->type == PLAYER) owner=clone;
490	else return;
491	}
492	set_owner(op, owner);
493
494	}	453	}
495		454
496	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
497	* refcounts and freeing the links.	456	* refcounts and freeing the links.
498	*/	457	*/
		458	static void
499	static void free_key_values(object * op)	459	free_key_values (object *op)
500	{	460	{
501	for (key_value *i = op->key_values; i != 0; )	461	for (key_value *i = op->key_values; i != 0;)
502	{	462	{
503	key_value *next = i->next;	463	key_value *next = i->next;
504	delete i;	464	delete i;
		465
505	i = next;	466	i = next;
506	}	467	}
507		468
508	op->key_values = 0;	469	op->key_values = 0;
509	}	470	}
510		471
511	void object::clear ()	472	void object::clear ()
512	{	473	{
513	attachable_base::clear ();	474	attachable_base::clear ();
514		475
515	free_key_values (this);	476	free_key_values (this);
516		477
517	name = 0;	478	owner = 0;
		479	name = 0;
518	name_pl = 0;	480	name_pl = 0;
519	title = 0;	481	title = 0;
520	race = 0;	482	race = 0;
521	slaying = 0;	483	slaying = 0;
522	skill = 0;	484	skill = 0;
523	msg = 0;	485	msg = 0;
524	lore = 0;	486	lore = 0;
525	custom_name = 0;	487	custom_name = 0;
526	materialname = 0;	488	materialname = 0;
		489	contr = 0;
		490	below = 0;
		491	above = 0;
		492	inv = 0;
		493	container = 0;
		494	env = 0;
		495	more = 0;
		496	head = 0;
		497	map = 0;
		498	active_next = 0;
		499	active_prev = 0;
527		500
528	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));	501	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
529		502
530	SET_FLAG (this, FLAG_REMOVED);	503	SET_FLAG (this, FLAG_REMOVED);
531	}
532		504
533	void object::clone (object *destination)
534	{
535	*(object_copy *)destination = *(object_copy *)this;
536	*(object_pod *)destination = *(object_pod *)this;
537
538	if (self || cb)
539	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
540	}
541
542	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object (object *op)
548	{
549	op->clear ();
550
551	op->contr = NULL;
552	op->below = NULL;
553	op->above = NULL;
554	op->inv = NULL;
555	op->container=NULL;
556	op->env=NULL;
557	op->more=NULL;
558	op->head=NULL;
559	op->map=NULL;
560	op->refcount=0;
561	op->active_next = NULL;
562	op->active_prev = NULL;
563	/* What is not cleared is next, prev, and count */	505	/* What is not cleared is next, prev, and count */
564		506
565	op->expmul = 1.0;	507	expmul = 1.0;
566	op->face = blank_face;	508	face = blank_face;
567	op->attacked_by_count = -1;
568		509
569	if (settings.casting_time)	510	if (settings.casting_time)
570	op->casting_time = -1;	511	casting_time = -1;
571	}	512	}
572		513
573	/*	514	/*
574	* copy object first frees everything allocated by the second object,	515	* copy_to first frees everything allocated by the dst object,
575	* and then copies the contends of the first object into the second	516	* and then copies the contents of itself into the second
576	* object, allocating what needs to be allocated. Basically, any	517	* object, allocating what needs to be allocated. Basically, any
577	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	518	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
578	* if the first object is freed, the pointers in the new object	519	* if the first object is freed, the pointers in the new object
579	* will point at garbage.	520	* will point at garbage.
580	*/	521	*/
581		522	void
582	void copy_object (object *op2, object *op)	523	object::copy_to (object *dst)
583	{	524	{
584	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	525	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
585	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	526	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
586		527
587	op2->clone (op);	528	*(object_copy *)dst = *this;
		529	*(object_pod *)dst = *this;
588		530
589	if (is_freed) SET_FLAG (op, FLAG_FREED);	531	if (self || cb)
590	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	532	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
591		533
		534	if (is_freed)
		535	SET_FLAG (dst, FLAG_FREED);
		536
		537	if (is_removed)
		538	SET_FLAG (dst, FLAG_REMOVED);
		539
592	if (op2->speed < 0)	540	if (speed < 0)
593	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	541	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
594		542
595	/* Copy over key_values, if any. */	543	/* Copy over key_values, if any. */
596	if (op2->key_values != NULL)	544	if (key_values)
597	{	545	{
598	key_value *tail = NULL;	546	key_value *tail = 0;
599	key_value *i;	547	key_value *i;
600		548
601	op->key_values = NULL;	549	dst->key_values = 0;
602		550
603	for (i = op2->key_values; i != NULL; i = i->next)	551	for (i = key_values; i; i = i->next)
604	{	552	{
605	key_value *new_link = new key_value;	553	key_value *new_link = new key_value;
606		554
607	new_link->next = NULL;	555	new_link->next = 0;
608	new_link->key = i->key;	556	new_link->key = i->key;
609	new_link->value = i->value;	557	new_link->value = i->value;
610		558
611	/* Try and be clever here, too. */	559	/* Try and be clever here, too. */
612	if (op->key_values == NULL)	560	if (!dst->key_values)
613	{	561	{
614	op->key_values = new_link;	562	dst->key_values = new_link;
615	tail = new_link;	563	tail = new_link;
616	}	564	}
617	else	565	else
618	{	566	{
619	tail->next = new_link;	567	tail->next = new_link;
620	tail = new_link;	568	tail = new_link;
621	}	569	}
622	}	570	}
623	}	571	}
624		572
625	update_ob_speed (op);	573	update_ob_speed (dst);
626	}	574	}
627		575
628	/*	576	object *
629	* get_object() grabs an object from the list of unused objects, makes	577	object::clone ()
630	* sure it is initialised, and returns it.
631	* If there are no free objects, expand_objects() is called to get more.
632	*/
633
634	object *get_object ()
635	{	578	{
636	object *op = new object;	579	object *neu = create ();
637		580	copy_to (neu);
638	op->count = ++ob_count;
639
640	op->next = objects;
641
642	if (objects)
643	objects->prev = op;
644
645	objects = op;
646
647	SET_FLAG (op, FLAG_REMOVED);
648
649	op->expmul = 1.0;
650	op->face = blank_face;
651	op->attacked_by_count = -1;
652
653	return op;	581	return neu;
654	}	582	}
655		583
656	/*	584	/*
657	* If an object with the IS_TURNABLE() flag needs to be turned due	585	* If an object with the IS_TURNABLE() flag needs to be turned due
658	* to the closest player being on the other side, this function can	586	* to the closest player being on the other side, this function can
659	* be called to update the face variable, _and_ how it looks on the map.	587	* be called to update the face variable, _and_ how it looks on the map.
660	*/	588	*/
661		589
		590	void
662	void update_turn_face(object *op) {	591	update_turn_face (object *op)
		592	{
663	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	593	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
664	return;	594	return;
665	SET_ANIMATION(op, op->direction);	595	SET_ANIMATION (op, op->direction);
666	update_object(op,UP_OBJ_FACE);	596	update_object (op, UP_OBJ_FACE);
667	}	597	}
668		598
669	/*	599	/*
670	* Updates the speed of an object. If the speed changes from 0 to another	600	* Updates the speed of an object. If the speed changes from 0 to another
671	* value, or vice versa, then add/remove the object from the active list.	601	* value, or vice versa, then add/remove the object from the active list.
672	* This function needs to be called whenever the speed of an object changes.	602	* This function needs to be called whenever the speed of an object changes.
673	*/	603	*/
674		604	void
675	void update_ob_speed(object *op) {	605	update_ob_speed (object *op)
		606	{
676	extern int arch_init;	607	extern int arch_init;
677		608
678	/* No reason putting the archetypes objects on the speed list,	609	/* No reason putting the archetypes objects on the speed list,
679	* since they never really need to be updated.	610	* since they never really need to be updated.
680	*/	611	*/
681		612
682	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	613	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		614	{
683	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	615	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
684	#ifdef MANY_CORES	616	#ifdef MANY_CORES
685	abort();	617	abort ();
686	#else	618	#else
687	op->speed = 0;	619	op->speed = 0;
688	#endif	620	#endif
689	}	621	}
		622
690	if (arch_init) {	623	if (arch_init)
		624	return;
		625
		626	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		627	{
		628	/* If already on active list, don't do anything */
		629	if (op->active_next || op->active_prev || op == active_objects)
691	return;	630	return;
692	}
693	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
694	/* If already on active list, don't do anything */
695	if (op->active_next || op->active_prev || op==active_objects)
696	return;
697		631
698	/* process_events() expects us to insert the object at the beginning	632	/* process_events() expects us to insert the object at the beginning
699	* of the list. */	633	* of the list. */
700	op->active_next = active_objects;	634	op->active_next = active_objects;
		635
701	if (op->active_next!=NULL)	636	if (op->active_next != NULL)
702	op->active_next->active_prev = op;	637	op->active_next->active_prev = op;
		638
703	active_objects = op;	639	active_objects = op;
		640	}
		641	else
704	}	642	{
705	else {
706	/* If not on the active list, nothing needs to be done */	643	/* If not on the active list, nothing needs to be done */
707	if (!op->active_next && !op->active_prev && op!=active_objects)	644	if (!op->active_next && !op->active_prev && op != active_objects)
708	return;	645	return;
709		646
710	if (op->active_prev==NULL) {	647	if (op->active_prev == NULL)
		648	{
711	active_objects = op->active_next;	649	active_objects = op->active_next;
		650
712	if (op->active_next!=NULL)	651	if (op->active_next != NULL)
713	op->active_next->active_prev = NULL;	652	op->active_next->active_prev = NULL;
		653	}
		654	else
714	}	655	{
715	else {
716	op->active_prev->active_next = op->active_next;	656	op->active_prev->active_next = op->active_next;
		657
717	if (op->active_next)	658	if (op->active_next)
718	op->active_next->active_prev = op->active_prev;	659	op->active_next->active_prev = op->active_prev;
719	}	660	}
		661
720	op->active_next = NULL;	662	op->active_next = NULL;
721	op->active_prev = NULL;	663	op->active_prev = NULL;
722	}	664	}
723	}	665	}
724		666
725	/* This function removes object 'op' from the list of active	667	/* This function removes object 'op' from the list of active
726	* objects.	668	* objects.
…		…
728	* reference maps where you don't want an object that isn't	670	* reference maps where you don't want an object that isn't
729	* in play chewing up cpu time getting processed.	671	* in play chewing up cpu time getting processed.
730	* The reverse of this is to call update_ob_speed, which	672	* The reverse of this is to call update_ob_speed, which
731	* will do the right thing based on the speed of the object.	673	* will do the right thing based on the speed of the object.
732	*/	674	*/
		675	void
733	void remove_from_active_list(object *op)	676	remove_from_active_list (object *op)
734	{	677	{
735	/* If not on the active list, nothing needs to be done */	678	/* If not on the active list, nothing needs to be done */
736	if (!op->active_next && !op->active_prev && op!=active_objects)	679	if (!op->active_next && !op->active_prev && op != active_objects)
737	return;	680	return;
738		681
739	if (op->active_prev==NULL) {	682	if (op->active_prev == NULL)
		683	{
740	active_objects = op->active_next;	684	active_objects = op->active_next;
741	if (op->active_next!=NULL)	685	if (op->active_next != NULL)
742	op->active_next->active_prev = NULL;	686	op->active_next->active_prev = NULL;
		687	}
		688	else
743	}	689	{
744	else {
745	op->active_prev->active_next = op->active_next;	690	op->active_prev->active_next = op->active_next;
746	if (op->active_next)	691	if (op->active_next)
747	op->active_next->active_prev = op->active_prev;	692	op->active_next->active_prev = op->active_prev;
748	}	693	}
749	op->active_next = NULL;	694	op->active_next = NULL;
750	op->active_prev = NULL;	695	op->active_prev = NULL;
751	}	696	}
752		697
753	/*	698	/*
754	* update_object() updates the array which represents the map.	699	* update_object() updates the array which represents the map.
755	* It takes into account invisible objects (and represent squares covered	700	* It takes into account invisible objects (and represent squares covered
…		…
770	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	715	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
771	* as that is easier than trying to look at what may have changed.	716	* as that is easier than trying to look at what may have changed.
772	* UP_OBJ_FACE: only the objects face has changed.	717	* UP_OBJ_FACE: only the objects face has changed.
773	*/	718	*/
774		719
		720	void
775	void update_object(object *op, int action) {	721	update_object (object *op, int action)
		722	{
776	int update_now=0, flags;	723	int update_now = 0, flags;
777	MoveType move_on, move_off, move_block, move_slow;	724	MoveType move_on, move_off, move_block, move_slow;
778		725
779	if (op == NULL) {	726	if (op == NULL)
		727	{
780	/* this should never happen */	728	/* this should never happen */
781	LOG(llevDebug,"update_object() called for NULL object.\n");	729	LOG (llevDebug, "update_object() called for NULL object.\n");
782	return;	730	return;
783	}
784		731	}
		732
785	if(op->env!=NULL) {	733	if (op->env != NULL)
		734	{
786	/* Animation is currently handled by client, so nothing	735	/* Animation is currently handled by client, so nothing
787	* to do in this case.	736	* to do in this case.
788	*/	737	*/
789	return;	738	return;
790	}	739	}
791		740
792	/* If the map is saving, don't do anything as everything is	741	/* If the map is saving, don't do anything as everything is
793	* going to get freed anyways.	742	* going to get freed anyways.
794	*/	743	*/
795	if (!op->map || op->map->in_memory == MAP_SAVING) return;	744	if (!op->map || op->map->in_memory == MAP_SAVING)
796		745	return;
		746
797	/* make sure the object is within map boundaries */	747	/* make sure the object is within map boundaries */
798	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	748	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))
799	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	749	{
800	LOG(llevError,"update_object() called for object out of map!\n");	750	LOG (llevError, "update_object() called for object out of map!\n");
801	#ifdef MANY_CORES	751	#ifdef MANY_CORES
802	abort();	752	abort ();
803	#endif	753	#endif
804	return;	754	return;
805	}
806		755	}
		756
807	flags = GET_MAP_FLAGS(op->map, op->x, op->y);	757	flags = GET_MAP_FLAGS (op->map, op->x, op->y);
808	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);	758	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
809	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	759	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
810	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	760	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
811	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	761	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
812	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);	762	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
813		763
814	if (action == UP_OBJ_INSERT) {	764	if (action == UP_OBJ_INSERT)
		765	{
815	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	766	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))
816	update_now=1;	767	update_now = 1;
817		768
818	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	769	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))
819	update_now=1;	770	update_now = 1;
820		771
821	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	772	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))
822	update_now=1;	773	update_now = 1;
823		774
824	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))	775	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
825	update_now=1;	776	update_now = 1;
826		777
		778	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
		779	update_now = 1;
		780
827	if ((move_on | op->move_on) != move_on) update_now=1;	781	if ((move_on | op->move_on) != move_on)
		782	update_now = 1;
		783
828	if ((move_off | op->move_off) != move_off) update_now=1;	784	if ((move_off | op->move_off) != move_off)
		785	update_now = 1;
		786
829	/* This isn't perfect, but I don't expect a lot of objects to	787	/* This isn't perfect, but I don't expect a lot of objects to
830	* to have move_allow right now.	788	* to have move_allow right now.
831	*/	789	*/
832	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	790	if (((move_block | op->move_block) & ~op->move_allow) != move_block)
833	update_now=1;	791	update_now = 1;
		792
834	if ((move_slow | op->move_slow) != move_slow) update_now=1;	793	if ((move_slow | op->move_slow) != move_slow)
		794	update_now = 1;
835	}	795	}
		796
836	/* if the object is being removed, we can't make intelligent	797	/* if the object is being removed, we can't make intelligent
837	* decisions, because remove_ob can't really pass the object	798	* decisions, because remove_ob can't really pass the object
838	* that is being removed.	799	* that is being removed.
839	*/	800	*/
840	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	801	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
841	update_now=1;	802	update_now = 1;
842	} else if (action == UP_OBJ_FACE) {	803	else if (action == UP_OBJ_FACE)
843	/* Nothing to do for that case */	804	/* Nothing to do for that case */ ;
844	}
845	else {	805	else
846	LOG(llevError,"update_object called with invalid action: %d\n", action);	806	LOG (llevError, "update_object called with invalid action: %d\n", action);
847	}
848		807
849	if (update_now) {	808	if (update_now)
		809	{
850	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);	810	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
851	update_position(op->map, op->x, op->y);	811	update_position (op->map, op->x, op->y);
852	}	812	}
853		813
854	if(op->more!=NULL)	814	if (op->more != NULL)
855	update_object(op->more, action);	815	update_object (op->more, action);
856	}	816	}
857		817
		818	object::vector object::mortals;
		819	object::vector object::objects; // not yet used
		820	object *object::first;
		821
		822	void object::free_mortals ()
		823	{
		824	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
		825	if ((*i)->refcnt)
		826	++i; // further delay freeing
		827	else
		828	{
		829	delete *i;
		830	mortals.erase (i);
		831	}
		832	}
		833
		834	object::object ()
		835	{
		836	SET_FLAG (this, FLAG_REMOVED);
		837
		838	expmul = 1.0;
		839	face = blank_face;
		840	}
		841
		842	object::~object ()
		843	{
		844	free_key_values (this);
		845	}
		846
		847	void object::link ()
		848	{
		849	count = ++ob_count;
		850	uuid = gen_uuid ();
		851
		852	prev = 0;
		853	next = object::first;
		854
		855	if (object::first)
		856	object::first->prev = this;
		857
		858	object::first = this;
		859	}
		860
		861	void object::unlink ()
		862	{
		863	if (this == object::first)
		864	object::first = next;
		865
		866	/* Remove this object from the list of used objects */
		867	if (prev) prev->next = next;
		868	if (next) next->prev = prev;
		869
		870	prev = 0;
		871	next = 0;
		872	}
		873
		874	object *object::create ()
		875	{
		876	object *op = new object;
		877	op->link ();
		878	return op;
		879	}
858		880
859	/*	881	/*
860	* free_object() frees everything allocated by an object, removes	882	* free_object() frees everything allocated by an object, removes
861	* it from the list of used objects, and puts it on the list of	883	* it from the list of used objects, and puts it on the list of
862	* free objects. The IS_FREED() flag is set in the object.	884	* free objects. The IS_FREED() flag is set in the object.
863	* The object must have been removed by remove_ob() first for	885	* The object must have been removed by remove_ob() first for
864	* this function to succeed.	886	* this function to succeed.
865	*	887	*
866	* If free_inventory is set, free inventory as well. Else drop items in	888	* If destroy_inventory is set, free inventory as well. Else drop items in
867	* inventory to the ground.	889	* inventory to the ground.
868	*/	890	*/
869		891	void object::destroy (bool destroy_inventory)
870	void
871	free_object (object * ob)
872	{	892	{
873	free_object2 (ob, 0);
874	}
875
876	void
877	free_object2 (object * ob, int free_inventory)
878	{
879	object *tmp, *op;
880
881	if (!QUERY_FLAG (ob, FLAG_REMOVED))	893	if (QUERY_FLAG (this, FLAG_FREED))
882	{	894	return;
883	LOG (llevDebug, "Free object called with non removed object\n");
884	dump_object (ob);
885	#ifdef MANY_CORES
886	abort ();
887	#endif
888	}
889		895
890	if (QUERY_FLAG (ob, FLAG_FRIENDLY))	896	if (QUERY_FLAG (this, FLAG_FRIENDLY))
891	{
892	LOG (llevMonster, "Warning: tried to free friendly object.\n");
893	remove_friendly_object (ob);	897	remove_friendly_object (this);
894	}
895		898
896	if (QUERY_FLAG (ob, FLAG_FREED))	899	if (!QUERY_FLAG (this, FLAG_REMOVED))
897	{	900	remove ();
898	dump_object (ob);	901
899	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);	902	SET_FLAG (this, FLAG_FREED);
900	return;	903
		904	if (more)
901	}	905	{
902		906	more->destroy (destroy_inventory);
903	if (ob->more != NULL)	907	more = 0;
904	{	908	}
905	free_object2 (ob->more, free_inventory);
906	ob->more = NULL;
907	}
908		909
909	if (ob->inv)	910	if (inv)
910	{	911	{
911	/* Only if the space blocks everything do we not process -	912	/* Only if the space blocks everything do we not process -
912	* if some form of movement is allowed, let objects	913	* if some form of movement is allowed, let objects
913	* drop on that space.	914	* drop on that space.
914	*/	915	*/
915	if (free_inventory || ob->map == NULL	916	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
916	|| ob->map->in_memory != MAP_IN_MEMORY	917	{
917	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))	918	object *op = inv;
918	{
919	op = ob->inv;
920		919
921	while (op != NULL)	920	while (op)
922	{	921	{
923	tmp = op->below;	922	object *tmp = op->below;
924	remove_ob (op);	923	op->destroy (destroy_inventory);
925	free_object2 (op, free_inventory);
926	op = tmp;	924	op = tmp;
927	}	925	}
928	}	926	}
929	else	927	else
930	{ /* Put objects in inventory onto this space */	928	{ /* Put objects in inventory onto this space */
931	op = ob->inv;	929	object *op = inv;
932		930
933	while (op != NULL)	931	while (op)
934	{	932	{
935	tmp = op->below;	933	object *tmp = op->below;
936	remove_ob (op);
937		934
		935	op->remove ();
		936
938	if (QUERY_FLAG (op, FLAG_STARTEQUIP)	937	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
939	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE	938	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
940	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))	939	op->destroy ();
941	free_object (op);	940	else
942	else	941	{
943	{	942	op->x = x;
944	op->x = ob->x;	943	op->y = y;
945	op->y = ob->y;
946	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */	944	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
947	}	945	}
948		946
949	op = tmp;	947	op = tmp;
		948	}
		949	}
950	}	950	}
951	}	951
		952	// hack to ensure that freed objects still have a valid map
		953	{
		954	static maptile *freed_map; // freed objects are moved here to avoid crashes
		955
		956	if (!freed_map)
		957	{
		958	freed_map = new maptile;
		959
		960	freed_map->name = "/internal/freed_objects_map";
		961	freed_map->width = 3;
		962	freed_map->height = 3;
		963
		964	freed_map->allocate ();
952	}	965	}
		966
		967	map = freed_map;
		968	x = 1;
		969	y = 1;
		970	}
		971
		972	// clear those pointers that likely might have circular references to us
		973	owner = 0;
		974	enemy = 0;
		975	attacked_by = 0;
		976
		977	// only relevant for players(?), but make sure of it anyways
		978	contr = 0;
953		979
954	/* Remove object from the active list */	980	/* Remove object from the active list */
955	ob->speed = 0;	981	speed = 0;
956	update_ob_speed (ob);	982	update_ob_speed (this);
957		983
958	SET_FLAG (ob, FLAG_FREED);	984	unlink ();
959	ob->count = 0;
960		985
961	/* Remove this object from the list of used objects */	986	mortals.push_back (this);
962	if (ob->prev == NULL)
963	{
964	objects = ob->next;
965
966	if (objects != NULL)
967	objects->prev = NULL;
968	}
969	else
970	{
971	ob->prev->next = ob->next;
972
973	if (ob->next != NULL)
974	ob->next->prev = ob->prev;
975	}
976
977	free_key_values (ob);
978
979	/* Now link it with the free_objects list: */
980	ob->prev = 0;
981	ob->next = 0;
982
983	delete ob;
984	}	987	}
985		988
986	/*	989	/*
987	* sub_weight() recursively (outwards) subtracts a number from the	990	* sub_weight() recursively (outwards) subtracts a number from the
988	* weight of an object (and what is carried by it's environment(s)).	991	* weight of an object (and what is carried by it's environment(s)).
989	*/	992	*/
990		993	void
991	void sub_weight (object *op, signed long weight) {	994	sub_weight (object *op, signed long weight)
		995	{
992	while (op != NULL) {	996	while (op != NULL)
		997	{
993	if (op->type == CONTAINER) {	998	if (op->type == CONTAINER)
994	weight=(signed long)(weight*(100-op->stats.Str)/100);	999	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
995	}	1000
996	op->carrying-=weight;	1001	op->carrying -= weight;
997	op = op->env;	1002	op = op->env;
998	}	1003	}
999	}	1004	}
1000		1005
1001	/* remove_ob(op):	1006	/* op->remove ():
1002	* This function removes the object op from the linked list of objects	1007	* This function removes the object op from the linked list of objects
1003	* which it is currently tied to. When this function is done, the	1008	* which it is currently tied to. When this function is done, the
1004	* object will have no environment. If the object previously had an	1009	* object will have no environment. If the object previously had an
1005	* environment, the x and y coordinates will be updated to	1010	* environment, the x and y coordinates will be updated to
1006	* the previous environment.	1011	* the previous environment.
1007	* Beware: This function is called from the editor as well!	1012	* Beware: This function is called from the editor as well!
1008	*/	1013	*/
1009		1014	void
1010	void remove_ob(object *op) {	1015	object::remove ()
		1016	{
1011	object *tmp,*last=NULL;	1017	object *tmp, *last = 0;
1012	object *otmp;	1018	object *otmp;
1013	tag_t tag;	1019
1014	int check_walk_off;	1020	int check_walk_off;
1015	mapstruct *m;
1016	sint16 x,y;
1017
1018		1021
1019	if(QUERY_FLAG(op,FLAG_REMOVED)) {	1022	if (QUERY_FLAG (this, FLAG_REMOVED))
1020	dump_object(op);	1023	return;
1021	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1022		1024
1023	/* Changed it to always dump core in this case. As has been learned
1024	* in the past, trying to recover from errors almost always
1025	* make things worse, and this is a real error here - something
1026	* that should not happen.
1027	* Yes, if this was a mission critical app, trying to do something
1028	* to recover may make sense, but that is because failure of the app
1029	* may have other disastrous problems. Cf runs out of a script
1030	* so is easily enough restarted without any real problems.
1031	* MSW 2001-07-01
1032	*/
1033	abort();
1034	}
1035	if(op->more!=NULL)
1036	remove_ob(op->more);
1037
1038	SET_FLAG(op, FLAG_REMOVED);	1025	SET_FLAG (this, FLAG_REMOVED);
1039		1026
		1027	if (more)
		1028	more->remove ();
		1029
1040	/*	1030	/*
1041	* In this case, the object to be removed is in someones	1031	* In this case, the object to be removed is in someones
1042	* inventory.	1032	* inventory.
1043	*/	1033	*/
1044	if(op->env!=NULL) {	1034	if (env)
		1035	{
1045	if(op->nrof)	1036	if (nrof)
1046	sub_weight(op->env, op->weight*op->nrof);	1037	sub_weight (env, weight * nrof);
1047	else	1038	else
1048	sub_weight(op->env, op->weight+op->carrying);	1039	sub_weight (env, weight + carrying);
1049		1040
1050	/* NO_FIX_PLAYER is set when a great many changes are being	1041	/* NO_FIX_PLAYER is set when a great many changes are being
1051	* made to players inventory. If set, avoiding the call	1042	* made to players inventory. If set, avoiding the call
1052	* to save cpu time.	1043	* to save cpu time.
1053	*/	1044	*/
1054	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	1045	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1055	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))
1056	fix_player(otmp);	1046	fix_player (otmp);
1057		1047
1058	if(op->above!=NULL)	1048	if (above != NULL)
1059	op->above->below=op->below;	1049	above->below = below;
1060	else	1050	else
1061	op->env->inv=op->below;	1051	env->inv = below;
1062		1052
1063	if(op->below!=NULL)	1053	if (below != NULL)
1064	op->below->above=op->above;	1054	below->above = above;
1065		1055
1066	/* we set up values so that it could be inserted into	1056	/* we set up values so that it could be inserted into
1067	* the map, but we don't actually do that - it is up	1057	* the map, but we don't actually do that - it is up
1068	* to the caller to decide what we want to do.	1058	* to the caller to decide what we want to do.
		1059	*/
		1060	x = env->x, y = env->y;
		1061	map = env->map;
		1062	above = 0, below = 0;
		1063	env = 0;
		1064	}
		1065	else if (map)
		1066	{
		1067	/* Re did the following section of code - it looks like it had
		1068	* lots of logic for things we no longer care about
		1069	*/
		1070
		1071	/* link the object above us */
		1072	if (above)
		1073	above->below = below;
		1074	else
		1075	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */
		1076
		1077	/* Relink the object below us, if there is one */
		1078	if (below)
		1079	below->above = above;
		1080	else
		1081	{
		1082	/* Nothing below, which means we need to relink map object for this space
		1083	* use translated coordinates in case some oddness with map tiling is
		1084	* evident
1069	*/	1085	*/
1070	op->x=op->env->x,op->y=op->env->y;	1086	if (GET_MAP_OB (map, x, y) != this)
1071	op->map=op->env->map;	1087	{
1072	op->above=NULL,op->below=NULL;	1088	char *dump = dump_object (this);
1073	op->env=NULL;	1089	LOG (llevError,
		1090	"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);
		1091	free (dump);
		1092	dump = dump_object (GET_MAP_OB (map, x, y));
		1093	LOG (llevError, "%s\n", dump);
		1094	free (dump);
		1095	}
		1096
		1097	SET_MAP_OB (map, x, y, above); /* goes on above it. */
		1098	}
		1099
		1100	above = 0;
		1101	below = 0;
		1102
		1103	if (map->in_memory == MAP_SAVING)
1074	return;	1104	return;
1075	}
1076		1105
1077	/* If we get here, we are removing it from a map */
1078	if (op->map == NULL) return;
1079
1080	x = op->x;
1081	y = op->y;
1082	m = get_map_from_coord(op->map, &x, &y);
1083
1084	if (!m) {
1085	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1086	op->map->path, op->x, op->y);
1087	/* in old days, we used to set x and y to 0 and continue.
1088	* it seems if we get into this case, something is probablye
1089	* screwed up and should be fixed.
1090	*/
1091	abort();
1092	}
1093	if (op->map != m) {
1094	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1095	op->map->path, m->path, op->x, op->y, x, y);
1096	}
1097
1098	/* Re did the following section of code - it looks like it had
1099	* lots of logic for things we no longer care about
1100	*/
1101
1102	/* link the object above us */
1103	if (op->above)
1104	op->above->below=op->below;
1105	else
1106	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1107
1108	/* Relink the object below us, if there is one */
1109	if(op->below) {
1110	op->below->above=op->above;
1111	} else {
1112	/* Nothing below, which means we need to relink map object for this space
1113	* use translated coordinates in case some oddness with map tiling is
1114	* evident
1115	*/
1116	if(GET_MAP_OB(m,x,y)!=op) {
1117	dump_object(op);
1118	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);
1119	dump_object(GET_MAP_OB(m,x,y));
1120	LOG(llevError,"%s\n",errmsg);
1121	}
1122	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1123	}
1124	op->above=NULL;
1125	op->below=NULL;
1126
1127	if (op->map->in_memory == MAP_SAVING)
1128	return;
1129
1130	tag = op->count;
1131	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);	1106	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);
		1107
1132	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {	1108	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
		1109	{
1133	/* No point updating the players look faces if he is the object	1110	/* No point updating the players look faces if he is the object
1134	* being removed.	1111	* being removed.
1135	*/	1112	*/
1136		1113
1137	if(tmp->type==PLAYER && tmp!=op) {	1114	if (tmp->type == PLAYER && tmp != this)
		1115	{
1138	/* If a container that the player is currently using somehow gets	1116	/* If a container that the player is currently using somehow gets
1139	* removed (most likely destroyed), update the player view	1117	* removed (most likely destroyed), update the player view
1140	* appropriately.	1118	* appropriately.
1141	*/	1119	*/
1142	if (tmp->container==op) {	1120	if (tmp->container == this)
		1121	{
1143	CLEAR_FLAG(op, FLAG_APPLIED);	1122	CLEAR_FLAG (this, FLAG_APPLIED);
1144	tmp->container=NULL;	1123	tmp->container = 0;
		1124	}
		1125
		1126	tmp->contr->socket->floorbox_update ();
1145	}	1127	}
1146	tmp->contr->socket.update_look=1;	1128
1147	}
1148	/* See if player moving off should effect something */	1129	/* See if player moving off should effect something */
1149	if (check_walk_off && ((op->move_type & tmp->move_off) &&	1130	if (check_walk_off
		1131	&& ((move_type & tmp->move_off)
1150	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {	1132	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1151		1133	{
1152	move_apply(tmp, op, NULL);	1134	move_apply (tmp, this, 0);
		1135
1153	if (was_destroyed (op, tag)) {	1136	if (destroyed ())
1154	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "	1137	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1155	"leaving object\n", &tmp->name, &tmp->arch->name);
1156	}	1138	}
1157	}
1158		1139
1159	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1140	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1160		1141
1161	if(tmp->above == tmp)	1142	if (tmp->above == tmp)
1162	tmp->above = NULL;	1143	tmp->above = 0;
		1144
1163	last=tmp;	1145	last = tmp;
1164	}	1146	}
		1147
1165	/* last == NULL of there are no objects on this space */	1148	/* last == NULL of there are no objects on this space */
1166	if (last==NULL) {	1149	if (!last)
		1150	{
1167	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1151	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1168	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures	1152	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1169	* those out anyways, and if there are any flags set right now, they won't	1153	* those out anyways, and if there are any flags set right now, they won't
1170	* be correct anyways.	1154	* be correct anyways.
1171	*/	1155	*/
1172	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);	1156	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1173	update_position(op->map, op->x, op->y);	1157	update_position (map, x, y);
1174	}	1158	}
1175	else	1159	else
1176	update_object(last, UP_OBJ_REMOVE);	1160	update_object (last, UP_OBJ_REMOVE);
1177		1161
1178	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1162	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)
1179	update_all_los(op->map, op->x, op->y);	1163	update_all_los (map, x, y);
1180		1164	}
1181	}	1165	}
1182		1166
1183	/*	1167	/*
1184	* merge_ob(op,top):	1168	* merge_ob(op,top):
1185	*	1169	*
1186	* This function goes through all objects below and including top, and	1170	* This function goes through all objects below and including top, and
1187	* merges op to the first matching object.	1171	* merges op to the first matching object.
1188	* If top is NULL, it is calculated.	1172	* If top is NULL, it is calculated.
1189	* Returns pointer to object if it succeded in the merge, otherwise NULL	1173	* Returns pointer to object if it succeded in the merge, otherwise NULL
1190	*/	1174	*/
1191		1175	object *
1192	object *merge_ob(object *op, object *top) {	1176	merge_ob (object *op, object *top)
		1177	{
1193	if(!op->nrof)	1178	if (!op->nrof)
1194	return 0;	1179	return 0;
		1180
1195	if(top==NULL)	1181	if (top == NULL)
1196	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1182	for (top = op; top != NULL && top->above != NULL; top = top->above);
		1183
1197	for(;top!=NULL;top=top->below) {	1184	for (; top != NULL; top = top->below)
		1185	{
1198	if(top==op)	1186	if (top == op)
1199	continue;	1187	continue;
1200	if (CAN_MERGE(op,top))	1188
1201	{	1189	if (object::can_merge (op, top))
		1190	{
1202	top->nrof+=op->nrof;	1191	top->nrof += op->nrof;
		1192
1203	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1193	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1204	op->weight = 0; /* Don't want any adjustements now */	1194	op->weight = 0; /* Don't want any adjustements now */
1205	remove_ob(op);	1195	op->destroy ();
1206	free_object(op);
1207	return top;	1196	return top;
1208	}	1197	}
1209	}	1198	}
		1199
1210	return NULL;	1200	return 0;
1211	}	1201	}
1212		1202
1213	/*	1203	/*
1214	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1204	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1215	* job preparing multi-part monsters	1205	* job preparing multi-part monsters
1216	*/	1206	*/
		1207	object *
1217	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1208	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1209	{
1218	object* tmp;	1210	object *tmp;
		1211
1219	if (op->head)	1212	if (op->head)
1220	op=op->head;	1213	op = op->head;
		1214
1221	for (tmp=op;tmp;tmp=tmp->more){	1215	for (tmp = op; tmp; tmp = tmp->more)
		1216	{
1222	tmp->x=x+tmp->arch->clone.x;	1217	tmp->x = x + tmp->arch->clone.x;
1223	tmp->y=y+tmp->arch->clone.y;	1218	tmp->y = y + tmp->arch->clone.y;
1224	}	1219	}
		1220
1225	return insert_ob_in_map (op, m, originator, flag);	1221	return insert_ob_in_map (op, m, originator, flag);
1226	}	1222	}
1227		1223
1228	/*	1224	/*
1229	* insert_ob_in_map (op, map, originator, flag):	1225	* insert_ob_in_map (op, map, originator, flag):
1230	* This function inserts the object in the two-way linked list	1226	* This function inserts the object in the two-way linked list
…		…
1244	* new object if 'op' was merged with other object	1240	* new object if 'op' was merged with other object
1245	* NULL if 'op' was destroyed	1241	* NULL if 'op' was destroyed
1246	* just 'op' otherwise	1242	* just 'op' otherwise
1247	*/	1243	*/
1248		1244
		1245	object *
1249	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1246	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1250	{	1247	{
1251	object *tmp, *top, *floor=NULL;	1248	object *tmp, *top, *floor = NULL;
1252	sint16 x,y;	1249	sint16 x, y;
1253		1250
1254	if (QUERY_FLAG (op, FLAG_FREED)) {	1251	if (QUERY_FLAG (op, FLAG_FREED))
		1252	{
1255	LOG (llevError, "Trying to insert freed object!\n");	1253	LOG (llevError, "Trying to insert freed object!\n");
		1254	return NULL;
		1255	}
		1256
		1257	if (m == NULL)
		1258	{
		1259	char *dump = dump_object (op);
		1260	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1261	free (dump);
		1262	return op;
		1263	}
		1264
		1265	if (out_of_map (m, op->x, op->y))
		1266	{
		1267	char *dump = dump_object (op);
		1268	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
		1269	#ifdef MANY_CORES
		1270	/* Better to catch this here, as otherwise the next use of this object
		1271	* is likely to cause a crash. Better to find out where it is getting
		1272	* improperly inserted.
		1273	*/
		1274	abort ();
		1275	#endif
		1276	free (dump);
		1277	return op;
		1278	}
		1279
		1280	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1281	{
		1282	char *dump = dump_object (op);
		1283	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1284	free (dump);
		1285	return op;
		1286	}
		1287
		1288	if (op->more != NULL)
		1289	{
		1290	/* The part may be on a different map. */
		1291
		1292	object *more = op->more;
		1293
		1294	/* We really need the caller to normalize coordinates - if
		1295	* we set the map, that doesn't work if the location is within
		1296	* a map and this is straddling an edge. So only if coordinate
		1297	* is clear wrong do we normalize it.
		1298	*/
		1299	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
		1300	more->map = get_map_from_coord (m, &more->x, &more->y);
		1301	else if (!more->map)
		1302	{
		1303	/* For backwards compatibility - when not dealing with tiled maps,
		1304	* more->map should always point to the parent.
		1305	*/
		1306	more->map = m;
		1307	}
		1308
		1309	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1310	{
		1311	if (!op->head)
		1312	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1313
		1314	return NULL;
		1315	}
		1316	}
		1317
		1318	CLEAR_FLAG (op, FLAG_REMOVED);
		1319
		1320	/* Ideally, the caller figures this out. However, it complicates a lot
		1321	* of areas of callers (eg, anything that uses find_free_spot would now
		1322	* need extra work
		1323	*/
		1324	op->map = get_map_from_coord (m, &op->x, &op->y);
		1325	x = op->x;
		1326	y = op->y;
		1327
		1328	/* this has to be done after we translate the coordinates.
		1329	*/
		1330	if (op->nrof && !(flag & INS_NO_MERGE))
		1331	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
		1332	if (object::can_merge (op, tmp))
		1333	{
		1334	op->nrof += tmp->nrof;
		1335	tmp->destroy ();
		1336	}
		1337
		1338	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1339	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1340
		1341	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1342	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1343
		1344	if (flag & INS_BELOW_ORIGINATOR)
		1345	{
		1346	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1347	{
		1348	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1349	abort ();
		1350	}
		1351
		1352	op->above = originator;
		1353	op->below = originator->below;
		1354
		1355	if (op->below)
		1356	op->below->above = op;
		1357	else
		1358	SET_MAP_OB (op->map, op->x, op->y, op);
		1359
		1360	/* since *below* originator, no need to update top */
		1361	originator->below = op;
		1362	}
		1363	else
		1364	{
		1365	/* If there are other objects, then */
		1366	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1367	{
		1368	object *last = NULL;
		1369
		1370	/*
		1371	* If there are multiple objects on this space, we do some trickier handling.
		1372	* We've already dealt with merging if appropriate.
		1373	* Generally, we want to put the new object on top. But if
		1374	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1375	* floor, we want to insert above that and no further.
		1376	* Also, if there are spell objects on this space, we stop processing
		1377	* once we get to them. This reduces the need to traverse over all of
		1378	* them when adding another one - this saves quite a bit of cpu time
		1379	* when lots of spells are cast in one area. Currently, it is presumed
		1380	* that flying non pickable objects are spell objects.
		1381	*/
		1382
		1383	while (top != NULL)
		1384	{
		1385	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1386	floor = top;
		1387
		1388	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1389	{
		1390	/* We insert above top, so we want this object below this */
		1391	top = top->below;
		1392	break;
		1393	}
		1394
		1395	last = top;
		1396	top = top->above;
		1397	}
		1398
		1399	/* Don't want top to be NULL, so set it to the last valid object */
		1400	top = last;
		1401
		1402	/* We let update_position deal with figuring out what the space
		1403	* looks like instead of lots of conditions here.
		1404	* makes things faster, and effectively the same result.
		1405	*/
		1406
		1407	/* Have object 'fall below' other objects that block view.
		1408	* Unless those objects are exits, type 66
		1409	* If INS_ON_TOP is used, don't do this processing
		1410	* Need to find the object that in fact blocks view, otherwise
		1411	* stacking is a bit odd.
		1412	*/
		1413	if (!(flag & INS_ON_TOP) &&
		1414	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1415	{
		1416	for (last = top; last != floor; last = last->below)
		1417	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1418	break;
		1419	/* Check to see if we found the object that blocks view,
		1420	* and make sure we have a below pointer for it so that
		1421	* we can get inserted below this one, which requires we
		1422	* set top to the object below us.
		1423	*/
		1424	if (last && last->below && last != floor)
		1425	top = last->below;
		1426	}
		1427	} /* If objects on this space */
		1428
		1429	if (flag & INS_MAP_LOAD)
		1430	top = GET_MAP_TOP (op->map, op->x, op->y);
		1431
		1432	if (flag & INS_ABOVE_FLOOR_ONLY)
		1433	top = floor;
		1434
		1435	/* Top is the object that our object (op) is going to get inserted above.
		1436	*/
		1437
		1438	/* First object on this space */
		1439	if (!top)
		1440	{
		1441	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1442
		1443	if (op->above)
		1444	op->above->below = op;
		1445
		1446	op->below = NULL;
		1447	SET_MAP_OB (op->map, op->x, op->y, op);
		1448	}
		1449	else
		1450	{ /* get inserted into the stack above top */
		1451	op->above = top->above;
		1452
		1453	if (op->above)
		1454	op->above->below = op;
		1455
		1456	op->below = top;
		1457	top->above = op;
		1458	}
		1459
		1460	if (op->above == NULL)
		1461	SET_MAP_TOP (op->map, op->x, op->y, op);
		1462	} /* else not INS_BELOW_ORIGINATOR */
		1463
		1464	if (op->type == PLAYER)
		1465	op->contr->do_los = 1;
		1466
		1467	/* If we have a floor, we know the player, if any, will be above
		1468	* it, so save a few ticks and start from there.
		1469	*/
		1470	if (!(flag & INS_MAP_LOAD))
		1471	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
		1472	if (tmp->type == PLAYER)
		1473	tmp->contr->socket->floorbox_update ();
		1474
		1475	/* If this object glows, it may affect lighting conditions that are
		1476	* visible to others on this map. But update_all_los is really
		1477	* an inefficient way to do this, as it means los for all players
		1478	* on the map will get recalculated. The players could very well
		1479	* be far away from this change and not affected in any way -
		1480	* this should get redone to only look for players within range,
		1481	* or just updating the P_NEED_UPDATE for spaces within this area
		1482	* of effect may be sufficient.
		1483	*/
		1484	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))
		1485	update_all_los (op->map, op->x, op->y);
		1486
		1487	/* updates flags (blocked, alive, no magic, etc) for this map space */
		1488	update_object (op, UP_OBJ_INSERT);
		1489
		1490	/* Don't know if moving this to the end will break anything. However,
		1491	* we want to have floorbox_update called before calling this.
		1492	*
		1493	* check_move_on() must be after this because code called from
		1494	* check_move_on() depends on correct map flags (so functions like
		1495	* blocked() and wall() work properly), and these flags are updated by
		1496	* update_object().
		1497	*/
		1498
		1499	/* if this is not the head or flag has been passed, don't check walk on status */
		1500	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1501	{
		1502	if (check_move_on (op, originator))
1256	return NULL;	1503	return NULL;
1257	}
1258	if(m==NULL) {
1259	dump_object(op);
1260	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);
1261	return op;
1262	}
1263	if(out_of_map(m,op->x,op->y)) {
1264	dump_object(op);
1265	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);
1266	#ifdef MANY_CORES
1267	/* Better to catch this here, as otherwise the next use of this object
1268	* is likely to cause a crash. Better to find out where it is getting
1269	* improperly inserted.
1270	*/
1271	abort();
1272	#endif
1273	return op;
1274	}
1275	if(!QUERY_FLAG(op,FLAG_REMOVED)) {
1276	dump_object(op);
1277	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);
1278	return op;
1279	}
1280	if(op->more!=NULL) {
1281	/* The part may be on a different map. */
1282		1504
1283	object *more = op->more;
1284
1285	/* We really need the caller to normalize coordinates - if
1286	* we set the map, that doesn't work if the location is within
1287	* a map and this is straddling an edge. So only if coordinate
1288	* is clear wrong do we normalize it.
1289	*/
1290	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {
1291	more->map = get_map_from_coord(m, &more->x, &more->y);
1292	} else if (!more->map) {
1293	/* For backwards compatibility - when not dealing with tiled maps,
1294	* more->map should always point to the parent.
1295	*/
1296	more->map = m;
1297	}
1298
1299	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {
1300	if ( ! op->head)
1301	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1302	return NULL;
1303	}
1304	}
1305	CLEAR_FLAG(op,FLAG_REMOVED);
1306
1307	/* Ideally, the caller figures this out. However, it complicates a lot
1308	* of areas of callers (eg, anything that uses find_free_spot would now
1309	* need extra work
1310	*/
1311	op->map=get_map_from_coord(m, &op->x, &op->y);
1312	x = op->x;
1313	y = op->y;
1314
1315	/* this has to be done after we translate the coordinates.
1316	*/
1317	if(op->nrof && !(flag & INS_NO_MERGE)) {
1318	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)
1319	if (CAN_MERGE(op,tmp)) {
1320	op->nrof+=tmp->nrof;
1321	remove_ob(tmp);
1322	free_object(tmp);
1323	}
1324	}
1325
1326	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1327	CLEAR_FLAG(op, FLAG_INV_LOCKED);
1328	if (!QUERY_FLAG(op, FLAG_ALIVE))
1329	CLEAR_FLAG(op, FLAG_NO_STEAL);
1330
1331	if (flag & INS_BELOW_ORIGINATOR) {
1332	if (originator->map != op->map || originator->x != op->x ||
1333	originator->y != op->y) {
1334	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
1335	abort();
1336	}
1337	op->above = originator;
1338	op->below = originator->below;
1339	if (op->below) op->below->above = op;
1340	else SET_MAP_OB(op->map, op->x, op->y, op);
1341	/* since *below* originator, no need to update top */
1342	originator->below = op;
1343	} else {
1344	/* If there are other objects, then */
1345	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1346	object *last=NULL;
1347	/*
1348	* If there are multiple objects on this space, we do some trickier handling.
1349	* We've already dealt with merging if appropriate.
1350	* Generally, we want to put the new object on top. But if
1351	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1352	* floor, we want to insert above that and no further.
1353	* Also, if there are spell objects on this space, we stop processing
1354	* once we get to them. This reduces the need to traverse over all of
1355	* them when adding another one - this saves quite a bit of cpu time
1356	* when lots of spells are cast in one area. Currently, it is presumed
1357	* that flying non pickable objects are spell objects.
1358	*/
1359
1360	while (top != NULL) {
1361	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1362	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1363	if (QUERY_FLAG(top, FLAG_NO_PICK)
1364	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1365	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1366	{
1367	/* We insert above top, so we want this object below this */
1368	top=top->below;
1369	break;
1370	}
1371	last = top;
1372	top = top->above;
1373	}
1374	/* Don't want top to be NULL, so set it to the last valid object */
1375	top = last;
1376
1377	/* We let update_position deal with figuring out what the space
1378	* looks like instead of lots of conditions here.
1379	* makes things faster, and effectively the same result.
1380	*/
1381
1382	/* Have object 'fall below' other objects that block view.
1383	* Unless those objects are exits, type 66
1384	* If INS_ON_TOP is used, don't do this processing
1385	* Need to find the object that in fact blocks view, otherwise
1386	* stacking is a bit odd.
1387	*/
1388	if (!(flag & INS_ON_TOP) &&
1389	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1390	(op->face && !op->face->visibility)) {
1391	for (last=top; last != floor; last=last->below)
1392	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1393	/* Check to see if we found the object that blocks view,
1394	* and make sure we have a below pointer for it so that
1395	* we can get inserted below this one, which requires we
1396	* set top to the object below us.
1397	*/
1398	if (last && last->below && last != floor) top=last->below;
1399	}
1400	} /* If objects on this space */
1401	if (flag & INS_MAP_LOAD)
1402	top = GET_MAP_TOP(op->map,op->x,op->y);
1403	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1404
1405	/* Top is the object that our object (op) is going to get inserted above.
1406	*/
1407
1408	/* First object on this space */
1409	if (!top) {
1410	op->above = GET_MAP_OB(op->map, op->x, op->y);
1411	if (op->above) op->above->below = op;
1412	op->below = NULL;
1413	SET_MAP_OB(op->map, op->x, op->y, op);
1414	} else { /* get inserted into the stack above top */
1415	op->above = top->above;
1416	if (op->above) op->above->below = op;
1417	op->below = top;
1418	top->above = op;
1419	}
1420	if (op->above==NULL)
1421	SET_MAP_TOP(op->map,op->x, op->y, op);
1422	} /* else not INS_BELOW_ORIGINATOR */
1423
1424	if(op->type==PLAYER)
1425	op->contr->do_los=1;
1426
1427	/* If we have a floor, we know the player, if any, will be above
1428	* it, so save a few ticks and start from there.
1429	*/
1430	if (!(flag & INS_MAP_LOAD))
1431	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {
1432	if (tmp->type == PLAYER)
1433	tmp->contr->socket.update_look=1;
1434	}
1435
1436	/* If this object glows, it may affect lighting conditions that are
1437	* visible to others on this map. But update_all_los is really
1438	* an inefficient way to do this, as it means los for all players
1439	* on the map will get recalculated. The players could very well
1440	* be far away from this change and not affected in any way -
1441	* this should get redone to only look for players within range,
1442	* or just updating the P_NEED_UPDATE for spaces within this area
1443	* of effect may be sufficient.
1444	*/
1445	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))
1446	update_all_los(op->map, op->x, op->y);
1447
1448
1449	/* updates flags (blocked, alive, no magic, etc) for this map space */
1450	update_object(op,UP_OBJ_INSERT);
1451
1452
1453	/* Don't know if moving this to the end will break anything. However,
1454	* we want to have update_look set above before calling this.
1455	*
1456	* check_move_on() must be after this because code called from
1457	* check_move_on() depends on correct map flags (so functions like
1458	* blocked() and wall() work properly), and these flags are updated by
1459	* update_object().
1460	*/
1461
1462	/* if this is not the head or flag has been passed, don't check walk on status */
1463
1464	if (!(flag & INS_NO_WALK_ON) && !op->head) {
1465	if (check_move_on(op, originator))
1466	return NULL;
1467
1468	/* If we are a multi part object, lets work our way through the check	1505	/* If we are a multi part object, lets work our way through the check
1469	* walk on's.	1506	* walk on's.
1470	*/	1507	*/
1471	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1508	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1472	if (check_move_on (tmp, originator))	1509	if (check_move_on (tmp, originator))
1473	return NULL;	1510	return NULL;
1474	}	1511	}
		1512
1475	return op;	1513	return op;
1476	}	1514	}
1477		1515
1478	/* this function inserts an object in the map, but if it	1516	/* this function inserts an object in the map, but if it
1479	* finds an object of its own type, it'll remove that one first.	1517	* finds an object of its own type, it'll remove that one first.
1480	* op is the object to insert it under: supplies x and the map.	1518	* op is the object to insert it under: supplies x and the map.
1481	*/	1519	*/
		1520	void
1482	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1521	replace_insert_ob_in_map (const char *arch_string, object *op)
		1522	{
1483	object *tmp;	1523	object *
1484	object *tmp1;	1524	tmp;
		1525	object *
		1526	tmp1;
1485		1527
1486	/* first search for itself and remove any old instances */	1528	/* first search for itself and remove any old instances */
1487		1529
1488	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1530	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1489	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1531	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1490	remove_ob(tmp);	1532	tmp->destroy ();
1491	free_object(tmp);
1492	}
1493	}
1494		1533
1495	tmp1=arch_to_object(find_archetype(arch_string));	1534	tmp1 = arch_to_object (archetype::find (arch_string));
1496		1535
1497		1536	tmp1->x = op->x;
1498	tmp1->x = op->x; tmp1->y = op->y;	1537	tmp1->y = op->y;
1499	insert_ob_in_map(tmp1,op->map,op,0);	1538	insert_ob_in_map (tmp1, op->map, op, 0);
1500	}	1539	}
1501		1540
1502	/*	1541	/*
1503	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1542	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1504	* is returned contains nr objects, and the remaining parts contains	1543	* is returned contains nr objects, and the remaining parts contains
1505	* the rest (or is removed and freed if that number is 0).	1544	* the rest (or is removed and freed if that number is 0).
1506	* On failure, NULL is returned, and the reason put into the	1545	* On failure, NULL is returned, and the reason put into the
1507	* global static errmsg array.	1546	* global static errmsg array.
1508	*/	1547	*/
1509		1548
		1549	object *
1510	object *get_split_ob(object *orig_ob, uint32 nr) {	1550	get_split_ob (object *orig_ob, uint32 nr)
		1551	{
1511	object *newob;	1552	object *newob;
1512	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1553	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1513		1554
1514	if(orig_ob->nrof<nr) {	1555	if (orig_ob->nrof < nr)
1515	sprintf(errmsg,"There are only %d %ss.",	1556	{
1516	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1557	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1517	return NULL;	1558	return NULL;
1518	}	1559	}
		1560
1519	newob = object_create_clone(orig_ob);	1561	newob = object_create_clone (orig_ob);
		1562
1520	if((orig_ob->nrof-=nr)<1) {	1563	if ((orig_ob->nrof -= nr) < 1)
1521	if ( ! is_removed)	1564	orig_ob->destroy (1);
1522	remove_ob(orig_ob);
1523	free_object2(orig_ob, 1);
1524	}
1525	else if ( ! is_removed) {	1565	else if (!is_removed)
		1566	{
1526	if(orig_ob->env!=NULL)	1567	if (orig_ob->env != NULL)
1527	sub_weight (orig_ob->env,orig_ob->weight*nr);	1568	sub_weight (orig_ob->env, orig_ob->weight * nr);
1528	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1569	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1570	{
1529	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1571	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1530	LOG(llevDebug,
1531	"Error, Tried to split object whose map is not in memory.\n");	1572	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1532	return NULL;	1573	return NULL;
1533	}	1574	}
1534	}	1575	}
		1576
1535	newob->nrof=nr;	1577	newob->nrof = nr;
1536		1578
1537	return newob;	1579	return newob;
1538	}	1580	}
1539		1581
1540	/*	1582	/*
1541	* decrease_ob_nr(object, number) decreases a specified number from	1583	* decrease_ob_nr(object, number) decreases a specified number from
1542	* the amount of an object. If the amount reaches 0, the object	1584	* the amount of an object. If the amount reaches 0, the object
1543	* is subsequently removed and freed.	1585	* is subsequently removed and freed.
1544	*	1586	*
1545	* Return value: 'op' if something is left, NULL if the amount reached 0	1587	* Return value: 'op' if something is left, NULL if the amount reached 0
1546	*/	1588	*/
1547		1589
		1590	object *
1548	object *decrease_ob_nr (object *op, uint32 i)	1591	decrease_ob_nr (object *op, uint32 i)
1549	{	1592	{
1550	object *tmp;	1593	object *tmp;
1551	player *pl;	1594	player *pl;
1552		1595
1553	if (i == 0) /* objects with op->nrof require this check */	1596	if (i == 0) /* objects with op->nrof require this check */
1554	return op;	1597	return op;
1555		1598
1556	if (i > op->nrof)	1599	if (i > op->nrof)
1557	i = op->nrof;	1600	i = op->nrof;
1558		1601
1559	if (QUERY_FLAG (op, FLAG_REMOVED))	1602	if (QUERY_FLAG (op, FLAG_REMOVED))
		1603	op->nrof -= i;
		1604	else if (op->env)
		1605	{
		1606	/* is this object in the players inventory, or sub container
		1607	* therein?
		1608	*/
		1609	tmp = op->in_player ();
		1610	/* nope. Is this a container the player has opened?
		1611	* If so, set tmp to that player.
		1612	* IMO, searching through all the players will mostly
		1613	* likely be quicker than following op->env to the map,
		1614	* and then searching the map for a player.
		1615	*/
		1616	if (!tmp)
		1617	{
		1618	for (pl = first_player; pl; pl = pl->next)
		1619	if (pl->ob->container == op->env)
		1620	{
		1621	tmp = pl->ob;
		1622	break;
		1623	}
		1624	}
		1625
		1626	if (i < op->nrof)
		1627	{
		1628	sub_weight (op->env, op->weight * i);
		1629	op->nrof -= i;
		1630	if (tmp)
		1631	esrv_send_item (tmp, op);
		1632	}
		1633	else
		1634	{
		1635	op->remove ();
		1636	op->nrof = 0;
		1637	if (tmp)
		1638	esrv_del_item (tmp->contr, op->count);
		1639	}
1560	{	1640	}
		1641	else
		1642	{
		1643	object *above = op->above;
		1644
		1645	if (i < op->nrof)
1561	op->nrof -= i;	1646	op->nrof -= i;
1562	}	1647	else
1563	else if (op->env != NULL)
1564	{
1565	/* is this object in the players inventory, or sub container
1566	* therein?
1567	*/
1568	tmp = is_player_inv (op->env);
1569	/* nope. Is this a container the player has opened?
1570	* If so, set tmp to that player.
1571	* IMO, searching through all the players will mostly
1572	* likely be quicker than following op->env to the map,
1573	* and then searching the map for a player.
1574	*/
1575	if (!tmp) {
1576	for (pl=first_player; pl; pl=pl->next)
1577	if (pl->ob->container == op->env) break;
1578	if (pl) tmp=pl->ob;
1579	else tmp=NULL;
1580	}	1648	{
1581
1582	if (i < op->nrof) {
1583	sub_weight (op->env, op->weight * i);
1584	op->nrof -= i;
1585	if (tmp) {
1586	esrv_send_item(tmp, op);
1587	}
1588	} else {
1589	remove_ob (op);	1649	op->remove ();
1590	op->nrof = 0;	1650	op->nrof = 0;
1591	if (tmp) {
1592	esrv_del_item(tmp->contr, op->count);
1593	}	1651	}
1594	}
1595	}
1596	else
1597	{
1598	object *above = op->above;
1599		1652
1600	if (i < op->nrof) {
1601	op->nrof -= i;
1602	} else {
1603	remove_ob (op);
1604	op->nrof = 0;
1605	}
1606	/* Since we just removed op, op->above is null */	1653	/* Since we just removed op, op->above is null */
1607	for (tmp = above; tmp != NULL; tmp = tmp->above)	1654	for (tmp = above; tmp; tmp = tmp->above)
1608	if (tmp->type == PLAYER) {	1655	if (tmp->type == PLAYER)
		1656	{
1609	if (op->nrof)	1657	if (op->nrof)
1610	esrv_send_item(tmp, op);	1658	esrv_send_item (tmp, op);
1611	else	1659	else
1612	esrv_del_item(tmp->contr, op->count);	1660	esrv_del_item (tmp->contr, op->count);
1613	}	1661	}
1614	}	1662	}
1615		1663
1616	if (op->nrof) {	1664	if (op->nrof)
1617	return op;	1665	return op;
1618	} else {	1666	else
1619	free_object (op);	1667	{
		1668	op->destroy ();
1620	return NULL;	1669	return 0;
1621	}	1670	}
1622	}	1671	}
1623		1672
1624	/*	1673	/*
1625	* add_weight(object, weight) adds the specified weight to an object,	1674	* add_weight(object, weight) adds the specified weight to an object,
1626	* and also updates how much the environment(s) is/are carrying.	1675	* and also updates how much the environment(s) is/are carrying.
1627	*/	1676	*/
1628		1677
		1678	void
1629	void add_weight (object *op, signed long weight) {	1679	add_weight (object *op, signed long weight)
		1680	{
1630	while (op!=NULL) {	1681	while (op != NULL)
		1682	{
1631	if (op->type == CONTAINER) {	1683	if (op->type == CONTAINER)
1632	weight=(signed long)(weight*(100-op->stats.Str)/100);	1684	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1633	}	1685
1634	op->carrying+=weight;	1686	op->carrying += weight;
1635	op=op->env;	1687	op = op->env;
1636	}	1688	}
1637	}	1689	}
1638		1690
		1691	object *
		1692	insert_ob_in_ob (object *op, object *where)
		1693	{
		1694	if (!where)
		1695	{
		1696	char *dump = dump_object (op);
		1697	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1698	free (dump);
		1699	return op;
		1700	}
		1701
		1702	if (where->head)
		1703	{
		1704	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1705	where = where->head;
		1706	}
		1707
		1708	return where->insert (op);
		1709	}
		1710
1639	/*	1711	/*
1640	* insert_ob_in_ob(op,environment):	1712	* env->insert (op)
1641	* This function inserts the object op in the linked list	1713	* This function inserts the object op in the linked list
1642	* inside the object environment.	1714	* inside the object environment.
1643	*	1715	*
1644	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1645	* the inventory at the last position or next to other objects of the same
1646	* type.
1647	* Frank: Now sorted by type, archetype and magic!
1648	*
1649	* The function returns now pointer to inserted item, and return value can	1716	* The function returns now pointer to inserted item, and return value can
1650	* be != op, if items are merged. -Tero	1717	* be != op, if items are merged. -Tero
1651	*/	1718	*/
1652		1719
1653	object *insert_ob_in_ob(object *op,object *where) {	1720	object *
		1721	object::insert (object *op)
		1722	{
1654	object *tmp, *otmp;	1723	object *tmp, *otmp;
1655		1724
1656	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1725	if (!QUERY_FLAG (op, FLAG_REMOVED))
1657	dump_object(op);	1726	op->remove ();
1658	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1727
1659	return op;
1660	}
1661	if(where==NULL) {
1662	dump_object(op);
1663	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1664	return op;
1665	}
1666	if (where->head) {
1667	LOG(llevDebug,
1668	"Warning: Tried to insert object wrong part of multipart object.\n");
1669	where = where->head;
1670	}
1671	if (op->more) {	1728	if (op->more)
		1729	{
1672	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1730	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1673	&op->name, op->count);
1674	return op;	1731	return op;
1675	}	1732	}
		1733
1676	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1734	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1677	CLEAR_FLAG(op, FLAG_REMOVED);	1735	CLEAR_FLAG (op, FLAG_REMOVED);
1678	if(op->nrof) {	1736	if (op->nrof)
		1737	{
1679	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1738	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1680	if ( CAN_MERGE(tmp,op) ) {	1739	if (object::can_merge (tmp, op))
		1740	{
1681	/* return the original object and remove inserted object	1741	/* return the original object and remove inserted object
1682	(client needs the original object) */	1742	(client needs the original object) */
1683	tmp->nrof += op->nrof;	1743	tmp->nrof += op->nrof;
1684	/* Weight handling gets pretty funky. Since we are adding to	1744	/* Weight handling gets pretty funky. Since we are adding to
1685	* tmp->nrof, we need to increase the weight.	1745	* tmp->nrof, we need to increase the weight.
1686	*/	1746	*/
1687	add_weight (where, op->weight*op->nrof);	1747	add_weight (this, op->weight * op->nrof);
1688	SET_FLAG(op, FLAG_REMOVED);	1748	SET_FLAG (op, FLAG_REMOVED);
1689	free_object(op); /* free the inserted object */	1749	op->destroy (); /* free the inserted object */
1690	op = tmp;	1750	op = tmp;
1691	remove_ob (op); /* and fix old object's links */	1751	op->remove (); /* and fix old object's links */
1692	CLEAR_FLAG(op, FLAG_REMOVED);	1752	CLEAR_FLAG (op, FLAG_REMOVED);
1693	break;	1753	break;
1694	}	1754	}
1695		1755
1696	/* I assume combined objects have no inventory	1756	/* I assume combined objects have no inventory
1697	* We add the weight - this object could have just been removed	1757	* We add the weight - this object could have just been removed
1698	* (if it was possible to merge). calling remove_ob will subtract	1758	* (if it was possible to merge). calling remove_ob will subtract
1699	* the weight, so we need to add it in again, since we actually do	1759	* the weight, so we need to add it in again, since we actually do
1700	* the linking below	1760	* the linking below
1701	*/	1761	*/
1702	add_weight (where, op->weight*op->nrof);	1762	add_weight (this, op->weight * op->nrof);
		1763	}
1703	} else	1764	else
1704	add_weight (where, (op->weight+op->carrying));	1765	add_weight (this, (op->weight + op->carrying));
1705		1766
1706	otmp=is_player_inv(where);	1767	otmp = this->in_player ();
1707	if (otmp&&otmp->contr!=NULL) {	1768	if (otmp && otmp->contr)
1708	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1769	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1709	fix_player(otmp);	1770	fix_player (otmp);
1710	}
1711		1771
1712	op->map=NULL;	1772	op->map = 0;
1713	op->env=where;	1773	op->env = this;
1714	op->above=NULL;	1774	op->above = 0;
1715	op->below=NULL;	1775	op->below = 0;
1716	op->x=0,op->y=0;	1776	op->x = 0, op->y = 0;
1717		1777
1718	/* reset the light list and los of the players on the map */	1778	/* reset the light list and los of the players on the map */
1719	if((op->glow_radius!=0)&&where->map)	1779	if ((op->glow_radius != 0) && map)
1720	{	1780	{
1721	#ifdef DEBUG_LIGHTS	1781	#ifdef DEBUG_LIGHTS
1722	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1782	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1723	op->name);
1724	#endif /* DEBUG_LIGHTS */	1783	#endif /* DEBUG_LIGHTS */
1725	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1784	if (MAP_DARKNESS (map))
		1785	update_all_los (map, x, y);
1726	}	1786	}
1727		1787
1728	/* Client has no idea of ordering so lets not bother ordering it here.	1788	/* Client has no idea of ordering so lets not bother ordering it here.
1729	* It sure simplifies this function...	1789	* It sure simplifies this function...
1730	*/	1790	*/
1731	if (where->inv==NULL)	1791	if (!inv)
1732	where->inv=op;	1792	inv = op;
1733	else {	1793	else
		1794	{
1734	op->below = where->inv;	1795	op->below = inv;
1735	op->below->above = op;	1796	op->below->above = op;
1736	where->inv = op;	1797	inv = op;
1737	}	1798	}
		1799
1738	return op;	1800	return op;
1739	}	1801	}
1740		1802
1741	/*	1803	/*
1742	* Checks if any objects has a move_type that matches objects	1804	* Checks if any objects has a move_type that matches objects
…		…
1757	* MSW 2001-07-08: Check all objects on space, not just those below	1819	* MSW 2001-07-08: Check all objects on space, not just those below
1758	* object being inserted. insert_ob_in_map may not put new objects	1820	* object being inserted. insert_ob_in_map may not put new objects
1759	* on top.	1821	* on top.
1760	*/	1822	*/
1761		1823
		1824	int
1762	int check_move_on (object *op, object *originator)	1825	check_move_on (object *op, object *originator)
1763	{	1826	{
1764	object *tmp;	1827	object *tmp;
1765	tag_t tag;
1766	mapstruct *m=op->map;	1828	maptile *m = op->map;
1767	int x=op->x, y=op->y;	1829	int x = op->x, y = op->y;
		1830
1768	MoveType move_on, move_slow, move_block;	1831	MoveType move_on, move_slow, move_block;
1769		1832
1770	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1833	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1771	return 0;	1834	return 0;
1772		1835
1773	tag = op->count;
1774
1775	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1836	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1776	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1837	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1777	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1838	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1778		1839
1779	/* if nothing on this space will slow op down or be applied,	1840	/* if nothing on this space will slow op down or be applied,
1780	* no need to do checking below. have to make sure move_type	1841	* no need to do checking below. have to make sure move_type
1781	* is set, as lots of objects don't have it set - we treat that	1842	* is set, as lots of objects don't have it set - we treat that
1782	* as walking.	1843	* as walking.
1783	*/	1844	*/
1784	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1845	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1785	return 0;	1846	return 0;
1786		1847
1787	/* This is basically inverse logic of that below - basically,	1848	/* This is basically inverse logic of that below - basically,
1788	* if the object can avoid the move on or slow move, they do so,	1849	* if the object can avoid the move on or slow move, they do so,
1789	* but can't do it if the alternate movement they are using is	1850	* but can't do it if the alternate movement they are using is
1790	* blocked. Logic on this seems confusing, but does seem correct.	1851	* blocked. Logic on this seems confusing, but does seem correct.
1791	*/	1852	*/
1792	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1853	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1793	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1854	return 0;
1794		1855
1795	/* The objects have to be checked from top to bottom.	1856	/* The objects have to be checked from top to bottom.
1796	* Hence, we first go to the top:	1857	* Hence, we first go to the top:
1797	*/	1858	*/
1798		1859
1799	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1860	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)
1800	tmp->above!=NULL; tmp=tmp->above) {	1861	{
1801	/* Trim the search when we find the first other spell effect	1862	/* Trim the search when we find the first other spell effect
1802	* this helps performance so that if a space has 50 spell objects,	1863	* this helps performance so that if a space has 50 spell objects,
1803	* we don't need to check all of them.	1864	* we don't need to check all of them.
1804	*/	1865	*/
1805	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1866	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1867	break;
		1868	}
		1869
		1870	for (; tmp; tmp = tmp->below)
1806	}	1871	{
1807	for(;tmp!=NULL; tmp=tmp->below) {	1872	if (tmp == op)
1808	if (tmp == op) continue; /* Can't apply yourself */	1873	continue; /* Can't apply yourself */
1809		1874
1810	/* Check to see if one of the movement types should be slowed down.	1875	/* Check to see if one of the movement types should be slowed down.
1811	* Second check makes sure that the movement types not being slowed	1876	* Second check makes sure that the movement types not being slowed
1812	* (~slow_move) is not blocked on this space - just because the	1877	* (~slow_move) is not blocked on this space - just because the
1813	* space doesn't slow down swimming (for example), if you can't actually	1878	* space doesn't slow down swimming (for example), if you can't actually
1814	* swim on that space, can't use it to avoid the penalty.	1879	* swim on that space, can't use it to avoid the penalty.
1815	*/	1880	*/
1816	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1881	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1882	{
1817	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1883	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1818	((op->move_type & tmp->move_slow) &&
1819	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1884	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1885	{
1820		1886
1821	float diff;	1887	float
1822
1823	diff = tmp->move_slow_penalty*FABS(op->speed);	1888	diff = tmp->move_slow_penalty * FABS (op->speed);
		1889
1824	if (op->type == PLAYER) {	1890	if (op->type == PLAYER)
1825	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1891	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1826	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1892	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1827	diff /= 4.0;	1893	diff /= 4.0;
1828	}	1894
1829	}
1830	op->speed_left -= diff;	1895	op->speed_left -= diff;
1831	}	1896	}
1832	}	1897	}
1833		1898
1834	/* Basically same logic as above, except now for actual apply. */	1899	/* Basically same logic as above, except now for actual apply. */
1835	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1900	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1836	((op->move_type & tmp->move_on) &&
1837	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1901	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1838		1902	{
1839	move_apply(tmp, op, originator);	1903	move_apply (tmp, op, originator);
		1904
1840	if (was_destroyed (op, tag))	1905	if (op->destroyed ())
1841	return 1;	1906	return 1;
1842		1907
1843	/* what the person/creature stepped onto has moved the object	1908	/* what the person/creature stepped onto has moved the object
1844	* someplace new. Don't process any further - if we did,	1909	* someplace new. Don't process any further - if we did,
1845	* have a feeling strange problems would result.	1910	* have a feeling strange problems would result.
1846	*/	1911	*/
1847	if (op->map != m || op->x != x || op->y != y) return 0;	1912	if (op->map != m || op->x != x || op->y != y)
		1913	return 0;
1848	}	1914	}
1849	}	1915	}
		1916
1850	return 0;	1917	return 0;
1851	}	1918	}
1852		1919
1853	/*	1920	/*
1854	* present_arch(arch, map, x, y) searches for any objects with	1921	* present_arch(arch, map, x, y) searches for any objects with
1855	* a matching archetype at the given map and coordinates.	1922	* a matching archetype at the given map and coordinates.
1856	* The first matching object is returned, or NULL if none.	1923	* The first matching object is returned, or NULL if none.
1857	*/	1924	*/
1858		1925
		1926	object *
1859	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1927	present_arch (const archetype *at, maptile *m, int x, int y)
		1928	{
1860	object *tmp;	1929	object *
		1930	tmp;
		1931
1861	if(m==NULL || out_of_map(m,x,y)) {	1932	if (m == NULL || out_of_map (m, x, y))
		1933	{
1862	LOG(llevError,"Present_arch called outside map.\n");	1934	LOG (llevError, "Present_arch called outside map.\n");
1863	return NULL;	1935	return NULL;
1864	}	1936	}
1865	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1937	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1866	if(tmp->arch == at)	1938	if (tmp->arch == at)
1867	return tmp;	1939	return tmp;
1868	return NULL;	1940	return NULL;
1869	}	1941	}
1870		1942
1871	/*	1943	/*
1872	* present(type, map, x, y) searches for any objects with	1944	* present(type, map, x, y) searches for any objects with
1873	* a matching type variable at the given map and coordinates.	1945	* a matching type variable at the given map and coordinates.
1874	* The first matching object is returned, or NULL if none.	1946	* The first matching object is returned, or NULL if none.
1875	*/	1947	*/
1876		1948
		1949	object *
1877	object *present(unsigned char type,mapstruct *m, int x,int y) {	1950	present (unsigned char type, maptile *m, int x, int y)
		1951	{
1878	object *tmp;	1952	object *
		1953	tmp;
		1954
1879	if(out_of_map(m,x,y)) {	1955	if (out_of_map (m, x, y))
		1956	{
1880	LOG(llevError,"Present called outside map.\n");	1957	LOG (llevError, "Present called outside map.\n");
1881	return NULL;	1958	return NULL;
1882	}	1959	}
1883	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1960	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1884	if(tmp->type==type)	1961	if (tmp->type == type)
1885	return tmp;	1962	return tmp;
1886	return NULL;	1963	return NULL;
1887	}	1964	}
1888		1965
1889	/*	1966	/*
1890	* present_in_ob(type, object) searches for any objects with	1967	* present_in_ob(type, object) searches for any objects with
1891	* a matching type variable in the inventory of the given object.	1968	* a matching type variable in the inventory of the given object.
1892	* The first matching object is returned, or NULL if none.	1969	* The first matching object is returned, or NULL if none.
1893	*/	1970	*/
1894		1971
		1972	object *
1895	object *present_in_ob(unsigned char type, const object *op) {	1973	present_in_ob (unsigned char type, const object *op)
		1974	{
1896	object *tmp;	1975	object *
		1976	tmp;
		1977
1897	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1978	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1898	if(tmp->type==type)	1979	if (tmp->type == type)
1899	return tmp;	1980	return tmp;
1900	return NULL;	1981	return NULL;
1901	}	1982	}
1902		1983
1903	/*	1984	/*
…		…
1913	* the object name, not the archetype name. this is so that the	1994	* the object name, not the archetype name. this is so that the
1914	* spell code can use one object type (force), but change it's name	1995	* spell code can use one object type (force), but change it's name
1915	* to be unique.	1996	* to be unique.
1916	*/	1997	*/
1917		1998
		1999	object *
1918	object *present_in_ob_by_name(int type, const char *str, const object *op) {	2000	present_in_ob_by_name (int type, const char *str, const object *op)
		2001	{
1919	object *tmp;	2002	object *
		2003	tmp;
1920		2004
1921	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	2005	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2006	{
1922	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	2007	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1923	return tmp;	2008	return tmp;
1924	}	2009	}
1925	return NULL;	2010	return NULL;
1926	}	2011	}
1927		2012
1928	/*	2013	/*
1929	* present_arch_in_ob(archetype, object) searches for any objects with	2014	* present_arch_in_ob(archetype, object) searches for any objects with
1930	* a matching archetype in the inventory of the given object.	2015	* a matching archetype in the inventory of the given object.
1931	* The first matching object is returned, or NULL if none.	2016	* The first matching object is returned, or NULL if none.
1932	*/	2017	*/
1933		2018
		2019	object *
1934	object *present_arch_in_ob(const archetype *at, const object *op) {	2020	present_arch_in_ob (const archetype *at, const object *op)
		2021	{
1935	object *tmp;	2022	object *
		2023	tmp;
		2024
1936	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	2025	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
1937	if( tmp->arch == at)	2026	if (tmp->arch == at)
1938	return tmp;	2027	return tmp;
1939	return NULL;	2028	return NULL;
1940	}	2029	}
1941		2030
1942	/*	2031	/*
1943	* activate recursively a flag on an object inventory	2032	* activate recursively a flag on an object inventory
1944	*/	2033	*/
		2034	void
1945	void flag_inv(object*op, int flag){	2035	flag_inv (object *op, int flag)
		2036	{
1946	object *tmp;	2037	object *
		2038	tmp;
		2039
1947	if(op->inv)	2040	if (op->inv)
1948	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2041	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2042	{
1949	SET_FLAG(tmp, flag);	2043	SET_FLAG (tmp, flag);
1950	flag_inv(tmp,flag);	2044	flag_inv (tmp, flag);
1951	}	2045	}
1952	}/*	2046	} /*
1953	* desactivate recursively a flag on an object inventory	2047	* desactivate recursively a flag on an object inventory
1954	*/	2048	*/
		2049	void
1955	void unflag_inv(object*op, int flag){	2050	unflag_inv (object *op, int flag)
		2051	{
1956	object *tmp;	2052	object *
		2053	tmp;
		2054
1957	if(op->inv)	2055	if (op->inv)
1958	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	2056	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)
		2057	{
1959	CLEAR_FLAG(tmp, flag);	2058	CLEAR_FLAG (tmp, flag);
1960	unflag_inv(tmp,flag);	2059	unflag_inv (tmp, flag);
1961	}	2060	}
1962	}	2061	}
1963		2062
1964	/*	2063	/*
1965	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	2064	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1966	* all it's inventory (recursively).	2065	* all it's inventory (recursively).
1967	* If checksums are used, a player will get set_cheat called for	2066	* If checksums are used, a player will get set_cheat called for
1968	* him/her-self and all object carried by a call to this function.	2067	* him/her-self and all object carried by a call to this function.
1969	*/	2068	*/
1970		2069
		2070	void
1971	void set_cheat(object *op) {	2071	set_cheat (object *op)
		2072	{
1972	SET_FLAG(op, FLAG_WAS_WIZ);	2073	SET_FLAG (op, FLAG_WAS_WIZ);
1973	flag_inv(op, FLAG_WAS_WIZ);	2074	flag_inv (op, FLAG_WAS_WIZ);
1974	}	2075	}
1975		2076
1976	/*	2077	/*
1977	* find_free_spot(object, map, x, y, start, stop) will search for	2078	* find_free_spot(object, map, x, y, start, stop) will search for
1978	* a spot at the given map and coordinates which will be able to contain	2079	* a spot at the given map and coordinates which will be able to contain
…		…
1993	* to know if the space in question will block the object. We can't use	2094	* to know if the space in question will block the object. We can't use
1994	* the archetype because that isn't correct if the monster has been	2095	* the archetype because that isn't correct if the monster has been
1995	* customized, changed states, etc.	2096	* customized, changed states, etc.
1996	*/	2097	*/
1997		2098
		2099	int
1998	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2100	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2101	{
		2102	int
		2103	i,
1999	int i,index=0, flag;	2104	index = 0, flag;
		2105	static int
2000	static int altern[SIZEOFFREE];	2106	altern[SIZEOFFREE];
2001		2107
2002	for(i=start;i<stop;i++) {	2108	for (i = start; i < stop; i++)
		2109	{
2003	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2110	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2004	if(!flag)	2111	if (!flag)
2005	altern[index++]=i;	2112	altern[index++] = i;
2006		2113
2007	/* Basically, if we find a wall on a space, we cut down the search size.	2114	/* Basically, if we find a wall on a space, we cut down the search size.
2008	* In this way, we won't return spaces that are on another side of a wall.	2115	* In this way, we won't return spaces that are on another side of a wall.
2009	* This mostly work, but it cuts down the search size in all directions -	2116	* This mostly work, but it cuts down the search size in all directions -
2010	* if the space being examined only has a wall to the north and empty	2117	* if the space being examined only has a wall to the north and empty
2011	* spaces in all the other directions, this will reduce the search space	2118	* spaces in all the other directions, this will reduce the search space
2012	* to only the spaces immediately surrounding the target area, and	2119	* to only the spaces immediately surrounding the target area, and
2013	* won't look 2 spaces south of the target space.	2120	* won't look 2 spaces south of the target space.
2014	*/	2121	*/
2015	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2122	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2016	stop=maxfree[i];	2123	stop = maxfree[i];
2017	}	2124	}
2018	if(!index) return -1;	2125
		2126	if (!index)
		2127	return -1;
		2128
2019	return altern[RANDOM()%index];	2129	return altern[RANDOM () % index];
2020	}	2130	}
2021		2131
2022	/*	2132	/*
2023	* find_first_free_spot(archetype, mapstruct, x, y) works like	2133	* find_first_free_spot(archetype, maptile, x, y) works like
2024	* find_free_spot(), but it will search max number of squares.	2134	* find_free_spot(), but it will search max number of squares.
2025	* But it will return the first available spot, not a random choice.	2135	* But it will return the first available spot, not a random choice.
2026	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2136	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2027	*/	2137	*/
2028		2138
		2139	int
2029	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2140	find_first_free_spot (const object *ob, maptile *m, int x, int y)
		2141	{
		2142	int
2030	int i;	2143	i;
		2144
2031	for(i=0;i<SIZEOFFREE;i++) {	2145	for (i = 0; i < SIZEOFFREE; i++)
		2146	{
2032	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2147	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2033	return i;	2148	return i;
2034	}	2149	}
2035	return -1;	2150	return -1;
2036	}	2151	}
2037		2152
2038	/*	2153	/*
2039	* The function permute(arr, begin, end) randomly reorders the array	2154	* The function permute(arr, begin, end) randomly reorders the array
2040	* arr[begin..end-1].	2155	* arr[begin..end-1].
2041	*/	2156	*/
		2157	static void
2042	static void permute(int *arr, int begin, int end)	2158	permute (int *arr, int begin, int end)
2043	{	2159	{
2044	int i, j, tmp, len;	2160	int
		2161	i,
		2162	j,
		2163	tmp,
		2164	len;
2045		2165
2046	len = end-begin;	2166	len = end - begin;
2047	for(i = begin; i < end; i++)	2167	for (i = begin; i < end; i++)
2048	{	2168	{
2049	j = begin+RANDOM()%len;	2169	j = begin + RANDOM () % len;
2050		2170
2051	tmp = arr[i];	2171	tmp = arr[i];
2052	arr[i] = arr[j];	2172	arr[i] = arr[j];
2053	arr[j] = tmp;	2173	arr[j] = tmp;
2054	}	2174	}
2055	}	2175	}
2056		2176
2057	/* new function to make monster searching more efficient, and effective!	2177	/* new function to make monster searching more efficient, and effective!
2058	* This basically returns a randomized array (in the passed pointer) of	2178	* This basically returns a randomized array (in the passed pointer) of
2059	* the spaces to find monsters. In this way, it won't always look for	2179	* the spaces to find monsters. In this way, it won't always look for
2060	* monsters to the north first. However, the size of the array passed	2180	* monsters to the north first. However, the size of the array passed
2061	* covers all the spaces, so within that size, all the spaces within	2181	* covers all the spaces, so within that size, all the spaces within
2062	* the 3x3 area will be searched, just not in a predictable order.	2182	* the 3x3 area will be searched, just not in a predictable order.
2063	*/	2183	*/
		2184	void
2064	void get_search_arr(int *search_arr)	2185	get_search_arr (int *search_arr)
2065	{	2186	{
		2187	int
2066	int i;	2188	i;
2067		2189
2068	for(i = 0; i < SIZEOFFREE; i++)	2190	for (i = 0; i < SIZEOFFREE; i++)
2069	{	2191	{
2070	search_arr[i] = i;	2192	search_arr[i] = i;
2071	}	2193	}
2072		2194
2073	permute(search_arr, 1, SIZEOFFREE1+1);	2195	permute (search_arr, 1, SIZEOFFREE1 + 1);
2074	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2196	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2075	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2197	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2076	}	2198	}
2077		2199
2078	/*	2200	/*
2079	* find_dir(map, x, y, exclude) will search some close squares in the	2201	* find_dir(map, x, y, exclude) will search some close squares in the
2080	* given map at the given coordinates for live objects.	2202	* given map at the given coordinates for live objects.
…		…
2086	* is actually want is going to try and move there. We need this info	2208	* is actually want is going to try and move there. We need this info
2087	* because we have to know what movement the thing looking to move	2209	* because we have to know what movement the thing looking to move
2088	* there is capable of.	2210	* there is capable of.
2089	*/	2211	*/
2090		2212
		2213	int
2091	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2214	find_dir (maptile *m, int x, int y, object *exclude)
		2215	{
		2216	int
		2217	i,
2092	int i,max=SIZEOFFREE, mflags;	2218	max = SIZEOFFREE, mflags;
		2219
2093	sint16 nx, ny;	2220	sint16 nx, ny;
2094	object *tmp;	2221	object *
2095	mapstruct *mp;	2222	tmp;
		2223	maptile *
		2224	mp;
		2225
2096	MoveType blocked, move_type;	2226	MoveType blocked, move_type;
2097		2227
2098	if (exclude && exclude->head) {	2228	if (exclude && exclude->head)
		2229	{
2099	exclude = exclude->head;	2230	exclude = exclude->head;
2100	move_type = exclude->move_type;	2231	move_type = exclude->move_type;
2101	} else {	2232	}
		2233	else
		2234	{
2102	/* If we don't have anything, presume it can use all movement types. */	2235	/* If we don't have anything, presume it can use all movement types. */
2103	move_type=MOVE_ALL;	2236	move_type = MOVE_ALL;
		2237	}
		2238
		2239	for (i = 1; i < max; i++)
2104	}	2240	{
2105
2106	for(i=1;i<max;i++) {
2107	mp = m;	2241	mp = m;
2108	nx = x + freearr_x[i];	2242	nx = x + freearr_x[i];
2109	ny = y + freearr_y[i];	2243	ny = y + freearr_y[i];
2110		2244
2111	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2245	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
2112	if (mflags & P_OUT_OF_MAP) {	2246	if (mflags & P_OUT_OF_MAP)
		2247	{
2113	max = maxfree[i];	2248	max = maxfree[i];
		2249	}
2114	} else {	2250	else
		2251	{
2115	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);	2252	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);
2116		2253
2117	if ((move_type & blocked) == move_type) {	2254	if ((move_type & blocked) == move_type)
		2255	{
2118	max=maxfree[i];	2256	max = maxfree[i];
		2257	}
2119	} else if (mflags & P_IS_ALIVE) {	2258	else if (mflags & P_IS_ALIVE)
		2259	{
2120	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2260	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)
2121	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2261	{
2122	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2262	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))
		2263	{
2123	break;	2264	break;
2124	}	2265	}
2125	}	2266	}
2126	if(tmp) {	2267	if (tmp)
		2268	{
2127	return freedir[i];	2269	return freedir[i];
2128	}	2270	}
2129	}	2271	}
2130	}	2272	}
2131	}	2273	}
2132	return 0;	2274	return 0;
2133	}	2275	}
2134		2276
2135	/*	2277	/*
2136	* distance(object 1, object 2) will return the square of the	2278	* distance(object 1, object 2) will return the square of the
2137	* distance between the two given objects.	2279	* distance between the two given objects.
2138	*/	2280	*/
2139		2281
		2282	int
2140	int distance(const object *ob1, const object *ob2) {	2283	distance (const object *ob1, const object *ob2)
		2284	{
2141	int i;	2285	int
2142	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2286	i;
2143	(ob1->y - ob2->y)*(ob1->y - ob2->y);	2287
		2288	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2144	return i;	2289	return i;
2145	}	2290	}
2146		2291
2147	/*	2292	/*
2148	* find_dir_2(delta-x,delta-y) will return a direction in which	2293	* find_dir_2(delta-x,delta-y) will return a direction in which
2149	* an object which has subtracted the x and y coordinates of another	2294	* an object which has subtracted the x and y coordinates of another
2150	* object, needs to travel toward it.	2295	* object, needs to travel toward it.
2151	*/	2296	*/
2152		2297
		2298	int
2153	int find_dir_2(int x, int y) {	2299	find_dir_2 (int x, int y)
		2300	{
2154	int q;	2301	int
		2302	q;
2155		2303
2156	if(y)	2304	if (y)
2157	q=x*100/y;	2305	q = x * 100 / y;
2158	else if (x)	2306	else if (x)
2159	q= -300*x;	2307	q = -300 * x;
2160	else	2308	else
2161	return 0;	2309	return 0;
2162		2310
2163	if(y>0) {	2311	if (y > 0)
		2312	{
2164	if(q < -242)	2313	if (q < -242)
2165	return 3 ;	2314	return 3;
2166	if (q < -41)	2315	if (q < -41)
2167	return 2 ;	2316	return 2;
2168	if (q < 41)	2317	if (q < 41)
2169	return 1 ;	2318	return 1;
2170	if (q < 242)	2319	if (q < 242)
2171	return 8 ;	2320	return 8;
2172	return 7 ;	2321	return 7;
2173	}	2322	}
2174		2323
2175	if (q < -242)	2324	if (q < -242)
2176	return 7 ;	2325	return 7;
2177	if (q < -41)	2326	if (q < -41)
2178	return 6 ;	2327	return 6;
2179	if (q < 41)	2328	if (q < 41)
2180	return 5 ;	2329	return 5;
2181	if (q < 242)	2330	if (q < 242)
2182	return 4 ;	2331	return 4;
2183		2332
2184	return 3 ;	2333	return 3;
2185	}	2334	}
2186		2335
2187	/*	2336	/*
2188	* absdir(int): Returns a number between 1 and 8, which represent	2337	* absdir(int): Returns a number between 1 and 8, which represent
2189	* the "absolute" direction of a number (it actually takes care of	2338	* the "absolute" direction of a number (it actually takes care of
2190	* "overflow" in previous calculations of a direction).	2339	* "overflow" in previous calculations of a direction).
2191	*/	2340	*/
2192		2341
		2342	int
2193	int absdir(int d) {	2343	absdir (int d)
2194	while(d<1) d+=8;	2344	{
2195	while(d>8) d-=8;	2345	while (d < 1)
		2346	d += 8;
		2347	while (d > 8)
		2348	d -= 8;
2196	return d;	2349	return d;
2197	}	2350	}
2198		2351
2199	/*	2352	/*
2200	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2353	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2201	* between two directions (which are expected to be absolute (see absdir())	2354	* between two directions (which are expected to be absolute (see absdir())
2202	*/	2355	*/
2203		2356
		2357	int
2204	int dirdiff(int dir1, int dir2) {	2358	dirdiff (int dir1, int dir2)
		2359	{
2205	int d;	2360	int
		2361	d;
		2362
2206	d = abs(dir1 - dir2);	2363	d = abs (dir1 - dir2);
2207	if(d>4)	2364	if (d > 4)
2208	d = 8 - d;	2365	d = 8 - d;
2209	return d;	2366	return d;
2210	}	2367	}
2211		2368
2212	/* peterm:	2369	/* peterm:
…		…
2217	* direction 4, 14, or 16 to get back to where we are.	2374	* direction 4, 14, or 16 to get back to where we are.
2218	* Moved from spell_util.c to object.c with the other related direction	2375	* Moved from spell_util.c to object.c with the other related direction
2219	* functions.	2376	* functions.
2220	*/	2377	*/
2221		2378
		2379	int
2222	int reduction_dir[SIZEOFFREE][3] = {	2380	reduction_dir[SIZEOFFREE][3] = {
2223	{0,0,0}, /* 0 */	2381	{0, 0, 0}, /* 0 */
2224	{0,0,0}, /* 1 */	2382	{0, 0, 0}, /* 1 */
2225	{0,0,0}, /* 2 */	2383	{0, 0, 0}, /* 2 */
2226	{0,0,0}, /* 3 */	2384	{0, 0, 0}, /* 3 */
2227	{0,0,0}, /* 4 */	2385	{0, 0, 0}, /* 4 */
2228	{0,0,0}, /* 5 */	2386	{0, 0, 0}, /* 5 */
2229	{0,0,0}, /* 6 */	2387	{0, 0, 0}, /* 6 */
2230	{0,0,0}, /* 7 */	2388	{0, 0, 0}, /* 7 */
2231	{0,0,0}, /* 8 */	2389	{0, 0, 0}, /* 8 */
2232	{8,1,2}, /* 9 */	2390	{8, 1, 2}, /* 9 */
2233	{1,2,-1}, /* 10 */	2391	{1, 2, -1}, /* 10 */
2234	{2,10,12}, /* 11 */	2392	{2, 10, 12}, /* 11 */
2235	{2,3,-1}, /* 12 */	2393	{2, 3, -1}, /* 12 */
2236	{2,3,4}, /* 13 */	2394	{2, 3, 4}, /* 13 */
2237	{3,4,-1}, /* 14 */	2395	{3, 4, -1}, /* 14 */
2238	{4,14,16}, /* 15 */	2396	{4, 14, 16}, /* 15 */
2239	{5,4,-1}, /* 16 */	2397	{5, 4, -1}, /* 16 */
2240	{4,5,6}, /* 17 */	2398	{4, 5, 6}, /* 17 */
2241	{6,5,-1}, /* 18 */	2399	{6, 5, -1}, /* 18 */
2242	{6,20,18}, /* 19 */	2400	{6, 20, 18}, /* 19 */
2243	{7,6,-1}, /* 20 */	2401	{7, 6, -1}, /* 20 */
2244	{6,7,8}, /* 21 */	2402	{6, 7, 8}, /* 21 */
2245	{7,8,-1}, /* 22 */	2403	{7, 8, -1}, /* 22 */
2246	{8,22,24}, /* 23 */	2404	{8, 22, 24}, /* 23 */
2247	{8,1,-1}, /* 24 */	2405	{8, 1, -1}, /* 24 */
2248	{24,9,10}, /* 25 */	2406	{24, 9, 10}, /* 25 */
2249	{9,10,-1}, /* 26 */	2407	{9, 10, -1}, /* 26 */
2250	{10,11,-1}, /* 27 */	2408	{10, 11, -1}, /* 27 */
2251	{27,11,29}, /* 28 */	2409	{27, 11, 29}, /* 28 */
2252	{11,12,-1}, /* 29 */	2410	{11, 12, -1}, /* 29 */
2253	{12,13,-1}, /* 30 */	2411	{12, 13, -1}, /* 30 */
2254	{12,13,14}, /* 31 */	2412	{12, 13, 14}, /* 31 */
2255	{13,14,-1}, /* 32 */	2413	{13, 14, -1}, /* 32 */
2256	{14,15,-1}, /* 33 */	2414	{14, 15, -1}, /* 33 */
2257	{33,15,35}, /* 34 */	2415	{33, 15, 35}, /* 34 */
2258	{16,15,-1}, /* 35 */	2416	{16, 15, -1}, /* 35 */
2259	{17,16,-1}, /* 36 */	2417	{17, 16, -1}, /* 36 */
2260	{18,17,16}, /* 37 */	2418	{18, 17, 16}, /* 37 */
2261	{18,17,-1}, /* 38 */	2419	{18, 17, -1}, /* 38 */
2262	{18,19,-1}, /* 39 */	2420	{18, 19, -1}, /* 39 */
2263	{41,19,39}, /* 40 */	2421	{41, 19, 39}, /* 40 */
2264	{19,20,-1}, /* 41 */	2422	{19, 20, -1}, /* 41 */
2265	{20,21,-1}, /* 42 */	2423	{20, 21, -1}, /* 42 */
2266	{20,21,22}, /* 43 */	2424	{20, 21, 22}, /* 43 */
2267	{21,22,-1}, /* 44 */	2425	{21, 22, -1}, /* 44 */
2268	{23,22,-1}, /* 45 */	2426	{23, 22, -1}, /* 45 */
2269	{45,47,23}, /* 46 */	2427	{45, 47, 23}, /* 46 */
2270	{23,24,-1}, /* 47 */	2428	{23, 24, -1}, /* 47 */
2271	{24,9,-1}}; /* 48 */	2429	{24, 9, -1}
		2430	}; /* 48 */
2272		2431
2273	/* Recursive routine to step back and see if we can	2432	/* Recursive routine to step back and see if we can
2274	* find a path to that monster that we found. If not,	2433	* find a path to that monster that we found. If not,
2275	* we don't bother going toward it. Returns 1 if we	2434	* we don't bother going toward it. Returns 1 if we
2276	* can see a direct way to get it	2435	* can see a direct way to get it
2277	* Modified to be map tile aware -.MSW	2436	* Modified to be map tile aware -.MSW
2278	*/	2437	*/
2279
2280		2438
		2439
		2440	int
2281	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2441	can_see_monsterP (maptile *m, int x, int y, int dir)
		2442	{
2282	sint16 dx, dy;	2443	sint16 dx, dy;
		2444	int
2283	int mflags;	2445	mflags;
2284		2446
		2447	if (dir < 0)
2285	if(dir<0) return 0; /* exit condition: invalid direction */	2448	return 0; /* exit condition: invalid direction */
2286		2449
2287	dx = x + freearr_x[dir];	2450	dx = x + freearr_x[dir];
2288	dy = y + freearr_y[dir];	2451	dy = y + freearr_y[dir];
2289		2452
2290	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2453	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2291		2454
2292	/* This functional arguably was incorrect before - it was	2455	/* This functional arguably was incorrect before - it was
2293	* checking for P_WALL - that was basically seeing if	2456	* checking for P_WALL - that was basically seeing if
2294	* we could move to the monster - this is being more	2457	* we could move to the monster - this is being more
2295	* literal on if we can see it. To know if we can actually	2458	* literal on if we can see it. To know if we can actually
2296	* move to the monster, we'd need the monster passed in or	2459	* move to the monster, we'd need the monster passed in or
2297	* at least its move type.	2460	* at least its move type.
2298	*/	2461	*/
2299	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2462	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2463	return 0;
2300		2464
2301	/* yes, can see. */	2465	/* yes, can see. */
2302	if(dir < 9) return 1;	2466	if (dir < 9)
		2467	return 1;
2303	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2468	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |
2304	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2469	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2305	can_see_monsterP(m,x,y, reduction_dir[dir][2]);
2306	}	2470	}
2307		2471
2308		2472
2309		2473
2310	/*	2474	/*
2311	* can_pick(picker, item): finds out if an object is possible to be	2475	* can_pick(picker, item): finds out if an object is possible to be
2312	* picked up by the picker. Returnes 1 if it can be	2476	* picked up by the picker. Returnes 1 if it can be
2313	* picked up, otherwise 0.	2477	* picked up, otherwise 0.
2314	*	2478	*
…		…
2316	* core dumps if they do.	2480	* core dumps if they do.
2317	*	2481	*
2318	* Add a check so we can't pick up invisible objects (0.93.8)	2482	* Add a check so we can't pick up invisible objects (0.93.8)
2319	*/	2483	*/
2320		2484
		2485	int
2321	int can_pick(const object *who, const object *item) {	2486	can_pick (const object *who, const object *item)
		2487	{
2322	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2488	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2323	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2489	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2324	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2490	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2325	(who->type==PLAYER||item->weight<who->weight/3));
2326	}	2491	}
2327		2492
2328		2493
2329	/*	2494	/*
2330	* create clone from object to another	2495	* create clone from object to another
2331	*/	2496	*/
		2497	object *
2332	object *object_create_clone (object *asrc) {	2498	object_create_clone (object *asrc)
		2499	{
2333	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2500	object *dst = 0, *tmp, *src, *part, *prev, *item;
2334		2501
2335	if(!asrc) return NULL;	2502	if (!asrc)
		2503	return 0;
		2504
2336	src = asrc;	2505	src = asrc;
2337	if(src->head)	2506	if (src->head)
2338	src = src->head;	2507	src = src->head;
2339		2508
2340	prev = NULL;	2509	prev = 0;
2341	for(part = src; part; part = part->more) {	2510	for (part = src; part; part = part->more)
2342	tmp = get_object();	2511	{
2343	copy_object(part,tmp);	2512	tmp = part->clone ();
2344	tmp->x -= src->x;	2513	tmp->x -= src->x;
2345	tmp->y -= src->y;	2514	tmp->y -= src->y;
		2515
2346	if(!part->head) {	2516	if (!part->head)
		2517	{
2347	dst = tmp;	2518	dst = tmp;
2348	tmp->head = NULL;	2519	tmp->head = 0;
		2520	}
2349	} else {	2521	else
		2522	{
2350	tmp->head = dst;	2523	tmp->head = dst;
2351	}	2524	}
		2525
2352	tmp->more = NULL;	2526	tmp->more = 0;
		2527
2353	if(prev)	2528	if (prev)
2354	prev->more = tmp;	2529	prev->more = tmp;
		2530
2355	prev = tmp;	2531	prev = tmp;
2356	}	2532	}
2357	/*** copy inventory ***/	2533
2358	for(item = src->inv; item; item = item->below) {	2534	for (item = src->inv; item; item = item->below)
2359	(void) insert_ob_in_ob(object_create_clone(item),dst);	2535	insert_ob_in_ob (object_create_clone (item), dst);
2360	}
2361		2536
2362	return dst;	2537	return dst;
2363	}
2364
2365	/* return true if the object was destroyed, 0 otherwise */
2366	int was_destroyed (const object *op, tag_t old_tag)
2367	{
2368	/* checking for FLAG_FREED isn't necessary, but makes this function more
2369	* robust */
2370	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2371	}	2538	}
2372		2539
2373	/* GROS - Creates an object using a string representing its content. */	2540	/* GROS - Creates an object using a string representing its content. */
2374	/* Basically, we save the content of the string to a temp file, then call */	2541	/* Basically, we save the content of the string to a temp file, then call */
2375	/* load_object on it. I admit it is a highly inefficient way to make things, */	2542	/* load_object on it. I admit it is a highly inefficient way to make things, */
2376	/* but it was simple to make and allows reusing the load_object function. */	2543	/* but it was simple to make and allows reusing the load_object function. */
2377	/* Remember not to use load_object_str in a time-critical situation. */	2544	/* Remember not to use load_object_str in a time-critical situation. */
2378	/* Also remember that multiparts objects are not supported for now. */	2545	/* Also remember that multiparts objects are not supported for now. */
2379		2546
		2547	object *
2380	object* load_object_str(const char *obstr)	2548	load_object_str (const char *obstr)
2381	{	2549	{
2382	object *op;	2550	object *op;
2383	char filename[MAX_BUF];	2551	char filename[MAX_BUF];
		2552
2384	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2553	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2385		2554
2386	FILE *tempfile=fopen(filename,"w");	2555	FILE *tempfile = fopen (filename, "w");
		2556
2387	if (tempfile == NULL)	2557	if (tempfile == NULL)
2388	{	2558	{
2389	LOG(llevError,"Error - Unable to access load object temp file\n");	2559	LOG (llevError, "Error - Unable to access load object temp file\n");
2390	return NULL;	2560	return NULL;
2391	};	2561	}
		2562
2392	fprintf(tempfile,obstr);	2563	fprintf (tempfile, obstr);
2393	fclose(tempfile);	2564	fclose (tempfile);
2394		2565
2395	op=get_object();	2566	op = object::create ();
2396		2567
2397	object_thawer thawer (filename);	2568	object_thawer thawer (filename);
2398		2569
2399	if (thawer)	2570	if (thawer)
2400	load_object(thawer,op,0);	2571	load_object (thawer, op, 0);
2401		2572
2402	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2573	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2403	CLEAR_FLAG(op,FLAG_REMOVED);	2574	CLEAR_FLAG (op, FLAG_REMOVED);
2404		2575
2405	return op;	2576	return op;
2406	}	2577	}
2407		2578
2408	/* This returns the first object in who's inventory that	2579	/* This returns the first object in who's inventory that
2409	* has the same type and subtype match.	2580	* has the same type and subtype match.
2410	* returns NULL if no match.	2581	* returns NULL if no match.
2411	*/	2582	*/
		2583	object *
2412	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2584	find_obj_by_type_subtype (const object *who, int type, int subtype)
2413	{	2585	{
2414	object *tmp;	2586	object *tmp;
2415		2587
2416	for (tmp=who->inv; tmp; tmp=tmp->below)	2588	for (tmp = who->inv; tmp; tmp = tmp->below)
2417	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2589	if (tmp->type == type && tmp->subtype == subtype)
		2590	return tmp;
2418		2591
2419	return NULL;	2592	return NULL;
2420	}	2593	}
2421		2594
2422	/* If ob has a field named key, return the link from the list,	2595	/* If ob has a field named key, return the link from the list,
2423	* otherwise return NULL.	2596	* otherwise return NULL.
2424	*	2597	*
2425	* key must be a passed in shared string - otherwise, this won't	2598	* key must be a passed in shared string - otherwise, this won't
2426	* do the desired thing.	2599	* do the desired thing.
2427	*/	2600	*/
		2601	key_value *
2428	key_value * get_ob_key_link(const object * ob, const char * key) {	2602	get_ob_key_link (const object *ob, const char *key)
		2603	{
2429	key_value * link;	2604	key_value *link;
2430		2605
2431	for (link = ob->key_values; link != NULL; link = link->next) {	2606	for (link = ob->key_values; link != NULL; link = link->next)
2432	if (link->key == key) {	2607	if (link->key == key)
2433	return link;	2608	return link;
2434	}	2609
2435	}
2436
2437	return NULL;	2610	return NULL;
2438	}	2611	}
2439		2612
2440	/*	2613	/*
2441	* Returns the value of op has an extra_field for key, or NULL.	2614	* Returns the value of op has an extra_field for key, or NULL.
2442	*	2615	*
2443	* The argument doesn't need to be a shared string.	2616	* The argument doesn't need to be a shared string.
2444	*	2617	*
2445	* The returned string is shared.	2618	* The returned string is shared.
2446	*/	2619	*/
		2620	const char *
2447	const char * get_ob_key_value(const object * op, const char * const key) {	2621	get_ob_key_value (const object *op, const char *const key)
		2622	{
2448	key_value * link;	2623	key_value *link;
2449	const char * canonical_key;	2624	shstr_cmp canonical_key (key);
		2625
		2626	if (!canonical_key)
2450		2627	{
2451	canonical_key = shstr::find (key);
2452
2453	if (canonical_key == NULL) {
2454	/* 1. There being a field named key on any object	2628	/* 1. There being a field named key on any object
2455	* implies there'd be a shared string to find.	2629	* implies there'd be a shared string to find.
2456	* 2. Since there isn't, no object has this field.	2630	* 2. Since there isn't, no object has this field.
2457	* 3. Therefore, *this* object doesn't have this field.	2631	* 3. Therefore, *this* object doesn't have this field.
2458	*/	2632	*/
2459	return NULL;	2633	return 0;
2460	}	2634	}
2461		2635
2462	/* This is copied from get_ob_key_link() above -	2636	/* This is copied from get_ob_key_link() above -
2463	* only 4 lines, and saves the function call overhead.	2637	* only 4 lines, and saves the function call overhead.
2464	*/	2638	*/
2465	for (link = op->key_values; link != NULL; link = link->next) {	2639	for (link = op->key_values; link; link = link->next)
2466	if (link->key == canonical_key) {	2640	if (link->key == canonical_key)
2467	return link->value;	2641	return link->value;
2468	}	2642
2469	}	2643	return 0;
2470	return NULL;
2471	}	2644	}
2472		2645
2473		2646
2474	/*	2647	/*
2475	* Updates the canonical_key in op to value.	2648	* Updates the canonical_key in op to value.
…		…
2479	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2652	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2480	* keys.	2653	* keys.
2481	*	2654	*
2482	* Returns TRUE on success.	2655	* Returns TRUE on success.
2483	*/	2656	*/
		2657	int
2484	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2658	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2659	{
		2660	key_value *
2485	key_value * field = NULL, *last=NULL;	2661	field = NULL, *last = NULL;
2486		2662
2487	for (field=op->key_values; field != NULL; field=field->next) {	2663	for (field = op->key_values; field != NULL; field = field->next)
		2664	{
2488	if (field->key != canonical_key) {	2665	if (field->key != canonical_key)
		2666	{
2489	last = field;	2667	last = field;
2490	continue;	2668	continue;
2491	}	2669	}
2492		2670
2493	if (value)	2671	if (value)
2494	field->value = value;	2672	field->value = value;
2495	else {	2673	else
		2674	{
2496	/* Basically, if the archetype has this key set,	2675	/* Basically, if the archetype has this key set,
2497	* we need to store the null value so when we save	2676	* we need to store the null value so when we save
2498	* it, we save the empty value so that when we load,	2677	* it, we save the empty value so that when we load,
2499	* we get this value back again.	2678	* we get this value back again.
2500	*/	2679	*/
2501	if (get_ob_key_link (&op->arch->clone, canonical_key))	2680	if (get_ob_key_link (&op->arch->clone, canonical_key))
2502	field->value = 0;	2681	field->value = 0;
		2682	else
		2683	{
		2684	if (last)
		2685	last->next = field->next;
2503	else	2686	else
2504	{
2505	if (last) last->next = field->next;
2506	else op->key_values = field->next;	2687	op->key_values = field->next;
2507		2688
2508	delete field;	2689	delete field;
2509	}	2690	}
2510	}	2691	}
2511	return TRUE;	2692	return TRUE;
2512	}	2693	}
2513	/* IF we get here, key doesn't exist */	2694	/* IF we get here, key doesn't exist */
2514		2695
2515	/* No field, we'll have to add it. */	2696	/* No field, we'll have to add it. */
		2697
		2698	if (!add_key)
2516		2699	{
2517	if (!add_key) {
2518	return FALSE;	2700	return FALSE;
2519	}	2701	}
2520	/* There isn't any good reason to store a null	2702	/* There isn't any good reason to store a null
2521	* value in the key/value list. If the archetype has	2703	* value in the key/value list. If the archetype has
2522	* this key, then we should also have it, so shouldn't	2704	* this key, then we should also have it, so shouldn't
2523	* be here. If user wants to store empty strings,	2705	* be here. If user wants to store empty strings,
2524	* should pass in ""	2706	* should pass in ""
2525	*/	2707	*/
2526	if (value == NULL) return TRUE;	2708	if (value == NULL)
2527
2528	field = new key_value;
2529
2530	field->key = canonical_key;
2531	field->value = value;
2532	/* Usual prepend-addition. */
2533	field->next = op->key_values;
2534	op->key_values = field;
2535
2536	return TRUE;	2709	return TRUE;
		2710
		2711	field = new key_value;
		2712
		2713	field->key = canonical_key;
		2714	field->value = value;
		2715	/* Usual prepend-addition. */
		2716	field->next = op->key_values;
		2717	op->key_values = field;
		2718
		2719	return TRUE;
2537	}	2720	}
2538		2721
2539	/*	2722	/*
2540	* Updates the key in op to value.	2723	* Updates the key in op to value.
2541	*	2724	*
…		…
2543	* and not add new ones.	2726	* and not add new ones.
2544	* In general, should be little reason FALSE is ever passed in for add_key	2727	* In general, should be little reason FALSE is ever passed in for add_key
2545	*	2728	*
2546	* Returns TRUE on success.	2729	* Returns TRUE on success.
2547	*/	2730	*/
		2731	int
2548	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2732	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2549	{	2733	{
2550	shstr key_ (key);	2734	shstr key_ (key);
		2735
2551	return set_ob_key_value_s (op, key_, value, add_key);	2736	return set_ob_key_value_s (op, key_, value, add_key);
2552	}	2737	}
		2738
		2739	object::depth_iterator::depth_iterator (object *container)
		2740	: iterator_base (container)
		2741	{
		2742	while (item->inv)
		2743	item = item->inv;
		2744	}
		2745
		2746	void
		2747	object::depth_iterator::next ()
		2748	{
		2749	if (item->below)
		2750	{
		2751	item = item->below;
		2752
		2753	while (item->inv)
		2754	item = item->inv;
		2755	}
		2756	else
		2757	item = item->env;
		2758	}
		2759
		2760	// return a suitable string describing an objetc in enough detail to find it
		2761	const char *
		2762	object::debug_desc (char *info) const
		2763	{
		2764	char info2[256 * 3];
		2765	char *p = info;
		2766
		2767	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2768	count,
		2769	&name,
		2770	title ? " " : "",
		2771	title ? (const char *)title : "");
		2772
		2773	if (env)
		2774	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2775
		2776	if (map)
		2777	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2778
		2779	return info;
		2780	}
		2781
		2782	const char *
		2783	object::debug_desc () const
		2784	{
		2785	static char info[256 * 3];
		2786	return debug_desc (info);
		2787	}
		2788

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