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Comparing deliantra/server/common/object.C (file contents):
Revision 1.20 by root, Fri Sep 8 18:26:22 2006 UTC vs.
Revision 1.85 by root, Mon Dec 25 17:11:16 2006 UTC

1	/*
2	* static char *rcsid_object_c =
3	* "$Id: object.C,v 1.20 2006/09/08 18:26:22 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	}	157	}
81		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->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
146	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
147	* being locked in inventory should prevent merging.
148	* 0x4 in flags3 is CLIENT_SENT
149	*/
150	if ((ob1->arch != ob2->arch) ||
151	(ob1->flags[0] != ob2->flags[0]) ||
152	(ob1->flags[1] != ob2->flags[1]) ||
153	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
154	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
155	(ob1->name != ob2->name) ||	228	|| ob1->name != ob2->name
156	(ob1->title != ob2->title) ||	229	|| ob1->title != ob2->title
157	(ob1->msg != ob2->msg) ||	230	|| ob1->msg != ob2->msg
158	(ob1->weight != ob2->weight) ||	231	|| ob1->weight != ob2->weight
159	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
160	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
161	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
162	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
163	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
164	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
165	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
166	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
167	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
168	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
169	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
170	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
171	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
172	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
173	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
174	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
175	(ob1->move_off != ob2->move_off) ||	248	|| ob1->move_off != ob2->move_off
176	(ob1->move_slow != ob2->move_slow) ||	249	|| ob1->move_slow != ob2->move_slow
177	(ob1->move_slow_penalty != ob2->move_slow_penalty))	250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
178	return 0;	251	return 0;
179		252
180	/* This is really a spellbook check - really, we should	253	/* This is really a spellbook check - really, we should
181	* check all objects in the inventory.	254	* check all objects in the inventory.
182	*/	255	*/
183	if (ob1->inv || ob2->inv)	256	if (ob1->inv || ob2->inv)
184	{	257	{
185	/* if one object has inventory but the other doesn't, not equiv */	258	/* if one object has inventory but the other doesn't, not equiv */
186	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
187	return 0;	260	return 0;
188		261
189	/* Now check to see if the two inventory objects could merge */	262	/* Now check to see if the two inventory objects could merge */
190	if (!CAN_MERGE (ob1->inv, ob2->inv))	263	if (!object::can_merge (ob1->inv, ob2->inv))
191	return 0;	264	return 0;
192		265
193	/* inventory ok - still need to check rest of this object to see	266	/* inventory ok - still need to check rest of this object to see
194	* if it is valid.	267	* if it is valid.
195	*/	268	*/
196	}	269	}
…		…
204		277
205	/* Note sure why the following is the case - either the object has to	278	/* Note sure why the following is the case - either the object has to
206	* be animated or have a very low speed. Is this an attempted monster	279	* be animated or have a very low speed. Is this an attempted monster
207	* check?	280	* check?
208	*/	281	*/
209	if (!QUERY_FLAG (ob1, FLAG_ANIMATE)	282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && 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, 1);
350	for(op=objects;op!=NULL;op=op->next) {	370	return freezer.as_string ();
351	dump_object(op);
352	fprintf(logfile, "Object %d\n:%s\n", op->count, errmsg);
353	}
354	}	371	}
355		372
356	/*	373	/*
357	* get_nearest_part(multi-object, object 2) returns the part of the	374	* get_nearest_part(multi-object, object 2) returns the part of the
358	* multi-object 1 which is closest to the second object.	375	* multi-object 1 which is closest to the second object.
359	* If it's not a multi-object, it is returned.	376	* If it's not a multi-object, it is returned.
360	*/	377	*/
361		378
		379	object *
362	object *get_nearest_part(object *op, const object *pl) {	380	get_nearest_part (object *op, const object *pl)
		381	{
363	object *tmp,*closest;	382	object *tmp, *closest;
364	int last_dist,i;	383	int last_dist, i;
		384
365	if(op->more==NULL)	385	if (op->more == NULL)
366	return op;	386	return op;
367	for(last_dist=distance(op,pl),closest=op,tmp=op->more;tmp!=NULL;tmp=tmp->more)	387	for (last_dist = distance (op, pl), closest = op, tmp = op->more; tmp != NULL; tmp = tmp->more)
368	if((i=distance(tmp,pl))<last_dist)	388	if ((i = distance (tmp, pl)) < last_dist)
369	closest=tmp,last_dist=i;	389	closest = tmp, last_dist = i;
370	return closest;	390	return closest;
371	}	391	}
372		392
373	/*	393	/*
374	* Returns the object which has the count-variable equal to the argument.	394	* Returns the object which has the count-variable equal to the argument.
375	*/	395	*/
376		396
		397	object *
377	object *find_object(tag_t i) {	398	find_object (tag_t i)
378	object *op;	399	{
379	for(op=objects;op!=NULL;op=op->next)	400	for (object *op = object::first; op; op = op->next)
380	if(op->count==i)	401	if (op->count == i)
381	break;	402	return op;
		403
382	return op;	404	return 0;
383	}	405	}
384		406
385	/*	407	/*
386	* Returns the first object which has a name equal to the argument.	408	* Returns the first object which has a name equal to the argument.
387	* Used only by the patch command, but not all that useful.	409	* Used only by the patch command, but not all that useful.
388	* Enables features like "patch <name-of-other-player> food 999"	410	* Enables features like "patch <name-of-other-player> food 999"
389	*/	411	*/
390		412
		413	object *
391	object *find_object_name(const char *str) {	414	find_object_name (const char *str)
392	const char *name = shstr::find (str);	415	{
		416	shstr_cmp str_ (str);
393	object *op;	417	object *op;
		418
394	for(op=objects;op!=NULL;op=op->next)	419	for (op = object::first; op != NULL; op = op->next)
395	if(&op->name == name)	420	if (op->name == str_)
396	break;	421	break;
397		422
398	return op;	423	return op;
399	}	424	}
400		425
		426	void
401	void free_all_object_data ()	427	free_all_object_data ()
402	{	428	{
403	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);	429	LOG (llevDebug, "%d allocated objects\n", nrofallocobjects);
404	}
405
406	/*
407	* Returns the object which this object marks as being the owner.
408	* A id-scheme is used to avoid pointing to objects which have been
409	* freed and are now reused. If this is detected, the owner is
410	* set to NULL, and NULL is returned.
411	* Changed 2004-02-12 - if the player is setting at the play again
412	* prompt, he is removed, and we don't want to treat him as an owner of
413	* anything, so check removed flag. I don't expect that this should break
414	* anything - once an object is removed, it is basically dead anyways.
415	*/
416
417	object *get_owner(object *op) {
418	if(op->owner==NULL)
419	return NULL;
420
421	if (!QUERY_FLAG(op->owner,FLAG_FREED) && !QUERY_FLAG(op->owner, FLAG_REMOVED) &&
422	op->owner->count==op->ownercount)
423	return op->owner;
424
425	op->owner=NULL;
426	op->ownercount=0;
427	return NULL;
428	}
429
430	void clear_owner(object *op)
431	{
432	if (!op) return;
433
434	if (op->owner && op->ownercount == op->owner->count)
435	op->owner->refcount--;
436
437	op->owner = NULL;
438	op->ownercount = 0;
439	}	430	}
440		431
441	/*	432	/*
442	* Sets the owner and sets the skill and exp pointers to owner's current	433	* Sets the owner and sets the skill and exp pointers to owner's current
443	* skill and experience objects.	434	* skill and experience objects.
444	*/	435	*/
445	void set_owner (object *op, object *owner)	436	void
		437	object::set_owner (object *owner)
446	{	438	{
447	if(owner==NULL||op==NULL)	439	if (!owner)
448	return;	440	return;
449		441
450	/* next line added to allow objects which own objects */	442	/* next line added to allow objects which own objects */
451	/* Add a check for ownercounts in here, as I got into an endless loop	443	/* Add a check for ownercounts in here, as I got into an endless loop
452	* with the fireball owning a poison cloud which then owned the	444	* with the fireball owning a poison cloud which then owned the
453	* fireball. I believe that was caused by one of the objects getting	445	* fireball. I believe that was caused by one of the objects getting
454	* freed and then another object replacing it. Since the ownercounts	446	* freed and then another object replacing it. Since the ownercounts
455	* didn't match, this check is valid and I believe that cause is valid.	447	* didn't match, this check is valid and I believe that cause is valid.
456	*/	448	*/
457	while (owner->owner && owner!=owner->owner &&	449	while (owner->owner)
458	owner->ownercount==owner->owner->count) owner=owner->owner;	450	owner = owner->owner;
459		451
460	/* IF the owner still has an owner, we did not resolve to a final owner.
461	* so lets not add to that.
462	*/
463	if (owner->owner) return;
464
465	op->owner=owner;	452	this->owner = owner;
466
467	op->ownercount=owner->count;
468	owner->refcount++;
469
470	}
471
472	/* Set the owner to clone's current owner and set the skill and experience
473	* objects to clone's objects (typically those objects that where the owner's
474	* current skill and experience objects at the time when clone's owner was
475	* set - not the owner's current skill and experience objects).
476	*
477	* Use this function if player created an object (e.g. fire bullet, swarm
478	* spell), and this object creates further objects whose kills should be
479	* accounted for the player's original skill, even if player has changed
480	* skills meanwhile.
481	*/
482	void copy_owner (object *op, object *clone)
483	{
484	object *owner = get_owner (clone);
485	if (owner == NULL) {
486	/* players don't have owners - they own themselves. Update
487	* as appropriate.
488	*/
489	if (clone->type == PLAYER) owner=clone;
490	else return;
491	}
492	set_owner(op, owner);
493
494	}	453	}
495		454
496	/* Zero the key_values on op, decrementing the shared-string	455	/* Zero the key_values on op, decrementing the shared-string
497	* refcounts and freeing the links.	456	* refcounts and freeing the links.
498	*/	457	*/
		458	static void
499	static void free_key_values(object * op)	459	free_key_values (object *op)
500	{	460	{
501	for (key_value *i = op->key_values; i != 0; )	461	for (key_value *i = op->key_values; i != 0;)
502	{	462	{
503	key_value *next = i->next;	463	key_value *next = i->next;
504	delete i;	464	delete i;
		465
505	i = next;	466	i = next;
506	}	467	}
507		468
508	op->key_values = 0;	469	op->key_values = 0;
509	}	470	}
510		471
511	void object::clear ()
512	{
513	attachable_base::clear ();
514
515	free_key_values (this);
516
517	name = 0;
518	name_pl = 0;
519	title = 0;
520	race = 0;
521	slaying = 0;
522	skill = 0;
523	msg = 0;
524	lore = 0;
525	custom_name = 0;
526	materialname = 0;
527
528	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
529
530	SET_FLAG (this, FLAG_REMOVED);
531	}
532
533	void object::clone (object *destination)
534	{
535	*(object_copy *)destination = *(object_copy *)this;
536	*(object_pod *)destination = *(object_pod *)this;
537
538	if (self || cb)
539	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
540	}
541
542	/*	472	/*
543	* clear_object() frees everything allocated by an object, and also
544	* clears all variables and flags to default settings.
545	*/
546
547	void clear_object (object *op)
548	{
549	op->clear ();
550
551	op->contr = NULL;
552	op->below = NULL;
553	op->above = NULL;
554	op->inv = NULL;
555	op->container=NULL;
556	op->env=NULL;
557	op->more=NULL;
558	op->head=NULL;
559	op->map=NULL;
560	op->refcount=0;
561	op->active_next = NULL;
562	op->active_prev = NULL;
563	/* What is not cleared is next, prev, and count */
564
565	op->expmul = 1.0;
566	op->face = blank_face;
567	op->attacked_by_count = -1;
568
569	if (settings.casting_time)
570	op->casting_time = -1;
571	}
572
573	/*
574	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
575	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
576	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
577	* data that is malloc'd needs to be re-malloc/copied. Otherwise,	476	* data that is malloc'd needs to be re-malloc/copied. Otherwise,
578	* if the first object is freed, the pointers in the new object	477	* if the first object is freed, the pointers in the new object
579	* will point at garbage.	478	* will point at garbage.
580	*/	479	*/
581		480	void
582	void copy_object (object *op2, object *op)	481	object::copy_to (object *dst)
583	{	482	{
584	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
585	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
586		485
587	op2->clone (op);	486	*(object_copy *)dst = *this;
588		487
589	if (is_freed) SET_FLAG (op, FLAG_FREED);	488	if (is_freed)
590	if (is_removed) SET_FLAG (op, FLAG_REMOVED);	489	SET_FLAG (dst, FLAG_FREED);
591		490
		491	if (is_removed)
		492	SET_FLAG (dst, FLAG_REMOVED);
		493
592	if (op2->speed < 0)	494	if (speed < 0)
593	op->speed_left = op2->speed_left - RANDOM() % 200 / 100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
594		496
595	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
596	if (op2->key_values != NULL)	498	if (key_values)
597	{	499	{
598	key_value *tail = NULL;	500	key_value *tail = 0;
599	key_value *i;	501	key_value *i;
600		502
601	op->key_values = NULL;	503	dst->key_values = 0;
602		504
603	for (i = op2->key_values; i != NULL; i = i->next)	505	for (i = key_values; i; i = i->next)
604	{	506	{
605	key_value *new_link = new key_value;	507	key_value *new_link = new key_value;
606		508
607	new_link->next = NULL;	509	new_link->next = 0;
608	new_link->key = i->key;	510	new_link->key = i->key;
609	new_link->value = i->value;	511	new_link->value = i->value;
610		512
611	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
612	if (op->key_values == NULL)	514	if (!dst->key_values)
613	{	515	{
614	op->key_values = new_link;	516	dst->key_values = new_link;
615	tail = new_link;	517	tail = new_link;
616	}	518	}
617	else	519	else
618	{	520	{
619	tail->next = new_link;	521	tail->next = new_link;
620	tail = new_link;	522	tail = new_link;
621	}	523	}
622	}	524	}
623	}	525	}
624		526
625	update_ob_speed (op);	527	update_ob_speed (dst);
626	}	528	}
627		529
		530	object *
628	object::object ()	531	object::clone ()
629	{	532	{
630	count = ++ob_count;	533	object *neu = create ();
631		534	copy_to (neu);
632	next = objects;	535	return neu;
633
634	if (objects)
635	objects->prev = this;
636
637	objects = this;
638
639	SET_FLAG (this, FLAG_REMOVED);
640
641	expmul = 1.0;
642	face = blank_face;
643	attacked_by_count = -1;
644	}
645
646	object::~object ()
647	{
648	}	536	}
649		537
650	/*	538	/*
651	* If an object with the IS_TURNABLE() flag needs to be turned due	539	* If an object with the IS_TURNABLE() flag needs to be turned due
652	* to the closest player being on the other side, this function can	540	* to the closest player being on the other side, this function can
653	* be called to update the face variable, _and_ how it looks on the map.	541	* be called to update the face variable, _and_ how it looks on the map.
654	*/	542	*/
655		543
		544	void
656	void update_turn_face(object *op) {	545	update_turn_face (object *op)
		546	{
657	if(!QUERY_FLAG(op,FLAG_IS_TURNABLE)||op->arch==NULL)	547	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)
658	return;	548	return;
659	SET_ANIMATION(op, op->direction);	549	SET_ANIMATION (op, op->direction);
660	update_object(op,UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
661	}	551	}
662		552
663	/*	553	/*
664	* Updates the speed of an object. If the speed changes from 0 to another	554	* Updates the speed of an object. If the speed changes from 0 to another
665	* value, or vice versa, then add/remove the object from the active list.	555	* value, or vice versa, then add/remove the object from the active list.
666	* This function needs to be called whenever the speed of an object changes.	556	* This function needs to be called whenever the speed of an object changes.
667	*/	557	*/
668		558	void
669	void update_ob_speed(object *op) {	559	update_ob_speed (object *op)
		560	{
670	extern int arch_init;	561	extern int arch_init;
671		562
672	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
673	* since they never really need to be updated.	564	* since they never really need to be updated.
674	*/	565	*/
675		566
676	if (QUERY_FLAG(op, FLAG_FREED) && op->speed) {	567	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
		568	{
677	LOG(llevError,"Object %s is freed but has speed.\n", &op->name);	569	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);
678	#ifdef MANY_CORES	570	#ifdef MANY_CORES
679	abort();	571	abort ();
680	#else	572	#else
681	op->speed = 0;	573	op->speed = 0;
682	#endif	574	#endif
683	}	575	}
		576
684	if (arch_init) {	577	if (arch_init)
		578	return;
		579
		580	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
		581	{
		582	/* If already on active list, don't do anything */
		583	if (op->active_next || op->active_prev || op == active_objects)
685	return;	584	return;
686	}
687	if (FABS(op->speed)>MIN_ACTIVE_SPEED) {
688	/* If already on active list, don't do anything */
689	if (op->active_next || op->active_prev || op==active_objects)
690	return;
691		585
692	/* process_events() expects us to insert the object at the beginning	586	/* process_events() expects us to insert the object at the beginning
693	* of the list. */	587	* of the list. */
694	op->active_next = active_objects;	588	op->active_next = active_objects;
		589
695	if (op->active_next!=NULL)	590	if (op->active_next != NULL)
696	op->active_next->active_prev = op;	591	op->active_next->active_prev = op;
		592
697	active_objects = op;	593	active_objects = op;
		594	}
		595	else
698	}	596	{
699	else {
700	/* If not on the active list, nothing needs to be done */	597	/* If not on the active list, nothing needs to be done */
701	if (!op->active_next && !op->active_prev && op!=active_objects)	598	if (!op->active_next && !op->active_prev && op != active_objects)
702	return;	599	return;
703		600
704	if (op->active_prev==NULL) {	601	if (op->active_prev == NULL)
		602	{
705	active_objects = op->active_next;	603	active_objects = op->active_next;
		604
706	if (op->active_next!=NULL)	605	if (op->active_next != NULL)
707	op->active_next->active_prev = NULL;	606	op->active_next->active_prev = NULL;
708	}	607	}
709	else {	608	else
		609	{
710	op->active_prev->active_next = op->active_next;	610	op->active_prev->active_next = op->active_next;
		611
711	if (op->active_next)	612	if (op->active_next)
712	op->active_next->active_prev = op->active_prev;	613	op->active_next->active_prev = op->active_prev;
713	}	614	}
		615
714	op->active_next = NULL;	616	op->active_next = NULL;
715	op->active_prev = NULL;	617	op->active_prev = NULL;
716	}	618	}
717	}	619	}
718		620
719	/* This function removes object 'op' from the list of active	621	/* This function removes object 'op' from the list of active
720	* objects.	622	* objects.
…		…
722	* reference maps where you don't want an object that isn't	624	* reference maps where you don't want an object that isn't
723	* in play chewing up cpu time getting processed.	625	* in play chewing up cpu time getting processed.
724	* The reverse of this is to call update_ob_speed, which	626	* The reverse of this is to call update_ob_speed, which
725	* will do the right thing based on the speed of the object.	627	* will do the right thing based on the speed of the object.
726	*/	628	*/
		629	void
727	void remove_from_active_list(object *op)	630	remove_from_active_list (object *op)
728	{	631	{
729	/* If not on the active list, nothing needs to be done */	632	/* If not on the active list, nothing needs to be done */
730	if (!op->active_next && !op->active_prev && op!=active_objects)	633	if (!op->active_next && !op->active_prev && op != active_objects)
731	return;	634	return;
732		635
733	if (op->active_prev==NULL) {	636	if (op->active_prev == NULL)
		637	{
734	active_objects = op->active_next;	638	active_objects = op->active_next;
735	if (op->active_next!=NULL)	639	if (op->active_next != NULL)
736	op->active_next->active_prev = NULL;	640	op->active_next->active_prev = NULL;
		641	}
		642	else
737	}	643	{
738	else {
739	op->active_prev->active_next = op->active_next;	644	op->active_prev->active_next = op->active_next;
740	if (op->active_next)	645	if (op->active_next)
741	op->active_next->active_prev = op->active_prev;	646	op->active_next->active_prev = op->active_prev;
742	}	647	}
743	op->active_next = NULL;	648	op->active_next = NULL;
744	op->active_prev = NULL;	649	op->active_prev = NULL;
745	}	650	}
746		651
747	/*	652	/*
748	* update_object() updates the array which represents the map.	653	* update_object() updates the the map.
749	* It takes into account invisible objects (and represent squares covered	654	* It takes into account invisible objects (and represent squares covered
750	* by invisible objects by whatever is below them (unless it's another	655	* by invisible objects by whatever is below them (unless it's another
751	* invisible object, etc...)	656	* invisible object, etc...)
752	* If the object being updated is beneath a player, the look-window	657	* If the object being updated is beneath a player, the look-window
753	* of that player is updated (this might be a suboptimal way of	658	* of that player is updated (this might be a suboptimal way of
754	* updating that window, though, since update_object() is called _often_)	659	* updating that window, though, since update_object() is called _often_)
755	*	660	*
756	* action is a hint of what the caller believes need to be done.	661	* action is a hint of what the caller believes need to be done.
757	* For example, if the only thing that has changed is the face (due to
758	* an animation), we don't need to call update_position until that actually
759	* comes into view of a player. OTOH, many other things, like addition/removal
760	* of walls or living creatures may need us to update the flags now.
761	* current action are:	662	* current action are:
762	* UP_OBJ_INSERT: op was inserted	663	* UP_OBJ_INSERT: op was inserted
763	* UP_OBJ_REMOVE: op was removed	664	* UP_OBJ_REMOVE: op was removed
764	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	665	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
765	* as that is easier than trying to look at what may have changed.	666	* as that is easier than trying to look at what may have changed.
766	* UP_OBJ_FACE: only the objects face has changed.	667	* UP_OBJ_FACE: only the objects face has changed.
767	*/	668	*/
768		669	void
769	void update_object(object *op, int action) {	670	update_object (object *op, int action)
770	int update_now=0, flags;	671	{
771	MoveType move_on, move_off, move_block, move_slow;	672	MoveType move_on, move_off, move_block, move_slow;
772		673
773	if (op == NULL) {	674	if (op == NULL)
		675	{
774	/* this should never happen */	676	/* this should never happen */
775	LOG(llevDebug,"update_object() called for NULL object.\n");	677	LOG (llevDebug, "update_object() called for NULL object.\n");
776	return;	678	return;
777	}
778		679	}
779	if(op->env!=NULL) {	680
		681	if (op->env)
		682	{
780	/* Animation is currently handled by client, so nothing	683	/* Animation is currently handled by client, so nothing
781	* to do in this case.	684	* to do in this case.
782	*/	685	*/
783	return;	686	return;
784	}	687	}
785		688
786	/* If the map is saving, don't do anything as everything is	689	/* If the map is saving, don't do anything as everything is
787	* going to get freed anyways.	690	* going to get freed anyways.
788	*/	691	*/
789	if (!op->map || op->map->in_memory == MAP_SAVING) return;	692	if (!op->map || op->map->in_memory == MAP_SAVING)
790		693	return;
		694
791	/* make sure the object is within map boundaries */	695	/* make sure the object is within map boundaries */
792	if (op->x < 0 || op->x >= MAP_WIDTH(op->map) ||	696	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
793	op->y < 0 || op->y >= MAP_HEIGHT(op->map)) {	697	{
794	LOG(llevError,"update_object() called for object out of map!\n");	698	LOG (llevError, "update_object() called for object out of map!\n");
795	#ifdef MANY_CORES	699	#ifdef MANY_CORES
796	abort();	700	abort ();
797	#endif	701	#endif
798	return;	702	return;
799	}
800		703	}
801	flags = GET_MAP_FLAGS(op->map, op->x, op->y);
802	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NEED_UPDATE);
803	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);
804	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);
805	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);
806	move_off = GET_MAP_MOVE_OFF(op->map, op->x, op->y);
807		704
		705	mapspace &m = op->ms ();
		706
		707	if (m.flags_ & P_NEED_UPDATE)
		708	/* nop */;
808	if (action == UP_OBJ_INSERT) {	709	else if (action == UP_OBJ_INSERT)
		710	{
		711	// this is likely overkill, TODO: revisit (schmorp)
809	if (QUERY_FLAG(op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	712	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
810	update_now=1;
811
812	if (QUERY_FLAG(op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	713	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
813	update_now=1;	714	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
814		715	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		716	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
815	if (QUERY_FLAG(op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	717	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
816	update_now=1;	718	|| (m.move_on | op->move_on ) != m.move_on
817
818	if (QUERY_FLAG(op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
819	update_now=1;
820
821	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
822	update_now=1;
823
824	if ((move_on | op->move_on) != move_on) update_now=1;
825
826	if ((move_off | op->move_off) != move_off) update_now=1;	719	|| (m.move_off | op->move_off ) != m.move_off
827		720	|| (m.move_slow | op->move_slow) != m.move_slow
828	/* This isn't perfect, but I don't expect a lot of objects to	721	/* This isn't perfect, but I don't expect a lot of objects to
829	* to have move_allow right now.	722	* to have move_allow right now.
830	*/	723	*/
831	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	724	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
832	update_now=1;	725	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
833		726	m.flags_ = P_NEED_UPDATE;
834	if ((move_slow | op->move_slow) != move_slow)
835	update_now=1;
836	}	727	}
837	/* if the object is being removed, we can't make intelligent	728	/* if the object is being removed, we can't make intelligent
838	* decisions, because remove_ob can't really pass the object	729	* decisions, because remove_ob can't really pass the object
839	* that is being removed.	730	* that is being removed.
840	*/	731	*/
841	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE) {	732	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
842	update_now=1;	733	m.flags_ = P_NEED_UPDATE;
843	} else if (action == UP_OBJ_FACE) {	734	else if (action == UP_OBJ_FACE)
844	/* Nothing to do for that case */	735	/* Nothing to do for that case */ ;
845	}
846	else {	736	else
847	LOG(llevError,"update_object called with invalid action: %d\n", action);	737	LOG (llevError, "update_object called with invalid action: %d\n", action);
848	}
849		738
850	if (update_now) {
851	SET_MAP_FLAGS(op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
852	update_position(op->map, op->x, op->y);
853	}
854
855	if(op->more!=NULL)	739	if (op->more)
856	update_object(op->more, action);	740	update_object (op->more, action);
857	}	741	}
858		742
		743	object::vector object::objects; // not yet used
		744	object *object::first;
		745
		746	object::object ()
		747	{
		748	SET_FLAG (this, FLAG_REMOVED);
		749
		750	expmul = 1.0;
		751	face = blank_face;
		752	}
		753
		754	object::~object ()
		755	{
		756	free_key_values (this);
		757	}
		758
		759	void object::link ()
		760	{
		761	count = ++ob_count;
		762	uuid = gen_uuid ();
		763
		764	prev = 0;
		765	next = object::first;
		766
		767	if (object::first)
		768	object::first->prev = this;
		769
		770	object::first = this;
		771	}
		772
		773	void object::unlink ()
		774	{
		775	if (this == object::first)
		776	object::first = next;
		777
		778	/* Remove this object from the list of used objects */
		779	if (prev) prev->next = next;
		780	if (next) next->prev = prev;
		781
		782	prev = 0;
		783	next = 0;
		784	}
		785
		786	object *object::create ()
		787	{
		788	object *op = new object;
		789	op->link ();
		790	return op;
		791	}
859		792
860	/*	793	/*
861	* free_object() frees everything allocated by an object, removes	794	* free_object() frees everything allocated by an object, removes
862	* it from the list of used objects, and puts it on the list of	795	* it from the list of used objects, and puts it on the list of
863	* free objects. The IS_FREED() flag is set in the object.	796	* free objects. The IS_FREED() flag is set in the object.
864	* The object must have been removed by remove_ob() first for	797	* The object must have been removed by remove_ob() first for
865	* this function to succeed.	798	* this function to succeed.
866	*	799	*
867	* If free_inventory is set, free inventory as well. Else drop items in	800	* If destroy_inventory is set, free inventory as well. Else drop items in
868	* inventory to the ground.	801	* inventory to the ground.
869	*/	802	*/
870
871	void	803	void
872	free_object (object * ob)	804	object::do_destroy ()
873	{	805	{
874	free_object2 (ob, 0);	806	attachable::do_destroy ();
875	}
876		807
		808	if (flag [FLAG_IS_LINKED])
		809	remove_button_link (this);
		810
		811	if (flag [FLAG_FRIENDLY])
		812	remove_friendly_object (this);
		813
		814	if (!flag [FLAG_REMOVED])
		815	remove ();
		816
		817	if (flag [FLAG_FREED])
		818	return;
		819
		820	flag [FLAG_FREED] = 1;
		821
		822	// hack to ensure that freed objects still have a valid map
		823	{
		824	static maptile *freed_map; // freed objects are moved here to avoid crashes
		825
		826	if (!freed_map)
		827	{
		828	freed_map = new maptile;
		829
		830	freed_map->name = "/internal/freed_objects_map";
		831	freed_map->width = 3;
		832	freed_map->height = 3;
		833
		834	freed_map->allocate ();
		835	}
		836
		837	map = freed_map;
		838	x = 1;
		839	y = 1;
		840	}
		841
		842	more = 0;
		843	head = 0;
		844	inv = 0;
		845
		846	// clear those pointers that likely might have circular references to us
		847	owner = 0;
		848	enemy = 0;
		849	attacked_by = 0;
		850
		851	// only relevant for players(?), but make sure of it anyways
		852	contr = 0;
		853
		854	/* Remove object from the active list */
		855	speed = 0;
		856	update_ob_speed (this);
		857
		858	unlink ();
		859	}
		860
		861	/*
		862	* Remove and free all objects in the inventory of the given object.
		863	* object.c ?
		864	*/
877	void	865	void
878	free_object2 (object * ob, int free_inventory)	866	object::destroy_inv (bool drop_to_ground)
879	{	867	{
880	object *tmp, *op;	868	if (!inv)
881
882	if (!QUERY_FLAG (ob, FLAG_REMOVED))
883	{
884	LOG (llevDebug, "Free object called with non removed object\n");
885	dump_object (ob);
886	#ifdef MANY_CORES
887	abort ();
888	#endif
889	}
890
891	if (QUERY_FLAG (ob, FLAG_FRIENDLY))
892	{
893	LOG (llevMonster, "Warning: tried to free friendly object.\n");
894	remove_friendly_object (ob);
895	}
896
897	if (QUERY_FLAG (ob, FLAG_FREED))
898	{
899	dump_object (ob);
900	LOG (llevError, "Trying to free freed object.\n%s\n", errmsg);
901	return;	869	return;
902	}
903		870
904	if (ob->more != NULL)
905	{
906	free_object2 (ob->more, free_inventory);
907	ob->more = NULL;
908	}
909
910	if (ob->inv)
911	{
912	/* Only if the space blocks everything do we not process -	871	/* Only if the space blocks everything do we not process -
913	* if some form of movement is allowed, let objects	872	* if some form of movement is allowed, let objects
914	* drop on that space.	873	* drop on that space.
915	*/	874	*/
916	if (free_inventory || ob->map == NULL	875	if (!drop_to_ground || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
917	|| ob->map->in_memory != MAP_IN_MEMORY
918	|| (GET_MAP_MOVE_BLOCK (ob->map, ob->x, ob->y) == MOVE_ALL))
919	{
920	op = ob->inv;
921
922	while (op != NULL)
923	{	876	{
924	tmp = op->below;	877	while (inv)
925	remove_ob (op);	878	{
926	free_object2 (op, free_inventory);	879	inv->destroy_inv (drop_to_ground);
927	op = tmp;	880	inv->destroy ();
928	}	881	}
929	}
930	else
931	{ /* Put objects in inventory onto this space */
932	op = ob->inv;
933
934	while (op != NULL)
935	{
936	tmp = op->below;
937	remove_ob (op);
938
939	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
940	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE
941	|| op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
942	free_object (op);
943	else
944	{
945	op->x = ob->x;
946	op->y = ob->y;
947	insert_ob_in_map (op, ob->map, NULL, 0); /* Insert in same map as the envir */
948	}
949
950	op = tmp;
951	}
952	}
953	}
954
955	/* Remove object from the active list */
956	ob->speed = 0;
957	update_ob_speed (ob);
958
959	SET_FLAG (ob, FLAG_FREED);
960	ob->count = 0;
961
962	/* Remove this object from the list of used objects */
963	if (ob->prev == NULL)
964	{
965	objects = ob->next;
966
967	if (objects != NULL)
968	objects->prev = NULL;
969	}	882	}
970	else	883	else
		884	{ /* Put objects in inventory onto this space */
		885	while (inv)
		886	{
		887	object *op = inv;
		888
		889	if (op->flag [FLAG_STARTEQUIP]
		890	|| op->flag [FLAG_NO_DROP]
		891	|| op->type == RUNE
		892	|| op->type == TRAP
		893	|| op->flag [FLAG_IS_A_TEMPLATE])
		894	op->destroy ();
		895	else
		896	{
		897	op->remove ();
		898	op->x = x;
		899	op->y = y;
		900	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		901	}
		902	}
971	{	903	}
972	ob->prev->next = ob->next;	904	}
973		905
974	if (ob->next != NULL)	906	void
975	ob->next->prev = ob->prev;	907	object::destroy (bool destroy_inventory)
		908	{
		909	if (destroyed ())
		910	return;
		911
		912	if (more)
976	}	913	{
		914	//TODO: non-head objects must not have inventory
		915	more->destroy (destroy_inventory);
		916	more = 0;
		917	}
977		918
978	free_key_values (ob);	919	if (destroy_inventory)
		920	destroy_inv (true);
979		921
980	/* Now link it with the free_objects list: */	922	attachable::destroy ();
981	ob->prev = 0;
982	ob->next = 0;
983
984	delete ob;
985	}	923	}
986		924
987	/*	925	/*
988	* sub_weight() recursively (outwards) subtracts a number from the	926	* sub_weight() recursively (outwards) subtracts a number from the
989	* weight of an object (and what is carried by it's environment(s)).	927	* weight of an object (and what is carried by it's environment(s)).
990	*/	928	*/
991		929	void
992	void sub_weight (object *op, signed long weight) {	930	sub_weight (object *op, signed long weight)
		931	{
993	while (op != NULL) {	932	while (op != NULL)
		933	{
994	if (op->type == CONTAINER) {	934	if (op->type == CONTAINER)
995	weight=(signed long)(weight*(100-op->stats.Str)/100);	935	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
996	}	936
997	op->carrying-=weight;	937	op->carrying -= weight;
998	op = op->env;	938	op = op->env;
999	}	939	}
1000	}	940	}
1001		941
1002	/* remove_ob(op):	942	/* op->remove ():
1003	* This function removes the object op from the linked list of objects	943	* This function removes the object op from the linked list of objects
1004	* which it is currently tied to. When this function is done, the	944	* which it is currently tied to. When this function is done, the
1005	* object will have no environment. If the object previously had an	945	* object will have no environment. If the object previously had an
1006	* environment, the x and y coordinates will be updated to	946	* environment, the x and y coordinates will be updated to
1007	* the previous environment.	947	* the previous environment.
1008	* Beware: This function is called from the editor as well!	948	* Beware: This function is called from the editor as well!
1009	*/	949	*/
1010		950	void
1011	void remove_ob(object *op) {	951	object::remove ()
		952	{
1012	object *tmp,*last=NULL;	953	object *tmp, *last = 0;
1013	object *otmp;	954	object *otmp;
1014	tag_t tag;
1015	int check_walk_off;
1016	mapstruct *m;
1017	sint16 x,y;
1018
1019		955
1020	if(QUERY_FLAG(op,FLAG_REMOVED)) {	956	if (QUERY_FLAG (this, FLAG_REMOVED))
1021	dump_object(op);	957	return;
1022	LOG(llevError,"Trying to remove removed object.\n%s\n",errmsg);
1023		958
1024	/* Changed it to always dump core in this case. As has been learned
1025	* in the past, trying to recover from errors almost always
1026	* make things worse, and this is a real error here - something
1027	* that should not happen.
1028	* Yes, if this was a mission critical app, trying to do something
1029	* to recover may make sense, but that is because failure of the app
1030	* may have other disastrous problems. Cf runs out of a script
1031	* so is easily enough restarted without any real problems.
1032	* MSW 2001-07-01
1033	*/
1034	abort();
1035	}
1036	if(op->more!=NULL)
1037	remove_ob(op->more);
1038
1039	SET_FLAG(op, FLAG_REMOVED);	959	SET_FLAG (this, FLAG_REMOVED);
		960	INVOKE_OBJECT (REMOVE, this);
1040		961
		962	if (more)
		963	more->remove ();
		964
1041	/*	965	/*
1042	* In this case, the object to be removed is in someones	966	* In this case, the object to be removed is in someones
1043	* inventory.	967	* inventory.
1044	*/	968	*/
1045	if(op->env!=NULL) {	969	if (env)
		970	{
1046	if(op->nrof)	971	if (nrof)
1047	sub_weight(op->env, op->weight*op->nrof);	972	sub_weight (env, weight * nrof);
1048	else	973	else
1049	sub_weight(op->env, op->weight+op->carrying);	974	sub_weight (env, weight + carrying);
1050		975
1051	/* NO_FIX_PLAYER is set when a great many changes are being	976	/* NO_FIX_PLAYER is set when a great many changes are being
1052	* made to players inventory. If set, avoiding the call	977	* made to players inventory. If set, avoiding the call
1053	* to save cpu time.	978	* to save cpu time.
1054	*/	979	*/
1055	if ((otmp=is_player_inv(op->env))!=NULL && otmp->contr &&	980	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1056	!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	981	otmp->update_stats ();
1057	fix_player(otmp);
1058		982
1059	if(op->above!=NULL)	983	if (above != NULL)
1060	op->above->below=op->below;	984	above->below = below;
1061	else	985	else
1062	op->env->inv=op->below;	986	env->inv = below;
1063		987
1064	if(op->below!=NULL)	988	if (below != NULL)
1065	op->below->above=op->above;	989	below->above = above;
1066		990
1067	/* we set up values so that it could be inserted into	991	/* we set up values so that it could be inserted into
1068	* the map, but we don't actually do that - it is up	992	* the map, but we don't actually do that - it is up
1069	* to the caller to decide what we want to do.	993	* to the caller to decide what we want to do.
		994	*/
		995	x = env->x, y = env->y;
		996	map = env->map;
		997	above = 0, below = 0;
		998	env = 0;
		999	}
		1000	else if (map)
		1001	{
		1002	/* Re did the following section of code - it looks like it had
		1003	* lots of logic for things we no longer care about
		1004	*/
		1005
		1006	/* link the object above us */
		1007	if (above)
		1008	above->below = below;
		1009	else
		1010	map->at (x, y).top = below; /* we were top, set new top */
		1011
		1012	/* Relink the object below us, if there is one */
		1013	if (below)
		1014	below->above = above;
		1015	else
		1016	{
		1017	/* Nothing below, which means we need to relink map object for this space
		1018	* use translated coordinates in case some oddness with map tiling is
		1019	* evident
1070	*/	1020	*/
1071	op->x=op->env->x,op->y=op->env->y;	1021	if (GET_MAP_OB (map, x, y) != this)
1072	op->map=op->env->map;	1022	{
1073	op->above=NULL,op->below=NULL;	1023	char *dump = dump_object (this);
1074	op->env=NULL;	1024	LOG (llevError,
		1025	"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);
		1026	free (dump);
		1027	dump = dump_object (GET_MAP_OB (map, x, y));
		1028	LOG (llevError, "%s\n", dump);
		1029	free (dump);
		1030	}
		1031
		1032	map->at (x, y).bot = above; /* goes on above it. */
		1033	}
		1034
		1035	above = 0;
		1036	below = 0;
		1037
		1038	if (map->in_memory == MAP_SAVING)
1075	return;	1039	return;
1076	}
1077		1040
1078	/* If we get here, we are removing it from a map */	1041	int check_walk_off = !flag [FLAG_NO_APPLY];
1079	if (op->map == NULL) return;
1080		1042
1081	x = op->x;	1043	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)
1082	y = op->y;	1044	{
1083	m = get_map_from_coord(op->map, &x, &y);	1045	/* No point updating the players look faces if he is the object
1084		1046	* being removed.
1085	if (!m) {
1086	LOG(llevError,"remove_ob called when object was on map but appears to not be within valid coordinates? %s (%d,%d)\n",
1087	op->map->path, op->x, op->y);
1088	/* in old days, we used to set x and y to 0 and continue.
1089	* it seems if we get into this case, something is probablye
1090	* screwed up and should be fixed.
1091	*/	1047	*/
1092	abort();
1093	}
1094	if (op->map != m) {
1095	LOG(llevDebug,"remove_ob: Object not really on map it claimed to be on? %s != %s, %d,%d != %d,%d\n",
1096	op->map->path, m->path, op->x, op->y, x, y);
1097	}
1098		1048
1099	/* Re did the following section of code - it looks like it had	1049	if (tmp->type == PLAYER && tmp != this)
1100	* lots of logic for things we no longer care about	1050	{
1101	*/	1051	/* If a container that the player is currently using somehow gets
1102		1052	* removed (most likely destroyed), update the player view
1103	/* link the object above us */	1053	* appropriately.
1104	if (op->above)
1105	op->above->below=op->below;
1106	else
1107	SET_MAP_TOP(m,x,y,op->below); /* we were top, set new top */
1108
1109	/* Relink the object below us, if there is one */
1110	if(op->below) {
1111	op->below->above=op->above;
1112	} else {
1113	/* Nothing below, which means we need to relink map object for this space
1114	* use translated coordinates in case some oddness with map tiling is
1115	* evident
1116	*/	1054	*/
1117	if(GET_MAP_OB(m,x,y)!=op) {	1055	if (tmp->container == this)
1118	dump_object(op);	1056	{
1119	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);	1057	flag [FLAG_APPLIED] = 0;
1120	dump_object(GET_MAP_OB(m,x,y));	1058	tmp->container = 0;
1121	LOG(llevError,"%s\n",errmsg);	1059	}
		1060
		1061	if (tmp->contr->ns)
		1062	tmp->contr->ns->floorbox_update ();
		1063	}
		1064
		1065	/* See if player moving off should effect something */
		1066	if (check_walk_off
		1067	&& ((move_type & tmp->move_off)
		1068	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
		1069	{
		1070	move_apply (tmp, this, 0);
		1071
		1072	if (destroyed ())
		1073	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1074	}
		1075
		1076	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
		1077
		1078	if (tmp->above == tmp)
		1079	tmp->above = 0;
		1080
		1081	last = tmp;
1122	}	1082	}
1123	SET_MAP_OB(m,x,y,op->above); /* goes on above it. */
1124	}
1125	op->above=NULL;
1126	op->below=NULL;
1127		1083
1128	if (op->map->in_memory == MAP_SAVING)
1129	return;
1130
1131	tag = op->count;
1132	check_walk_off = ! QUERY_FLAG (op, FLAG_NO_APPLY);
1133	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above) {
1134	/* No point updating the players look faces if he is the object
1135	* being removed.
1136	*/
1137
1138	if(tmp->type==PLAYER && tmp!=op) {
1139	/* If a container that the player is currently using somehow gets
1140	* removed (most likely destroyed), update the player view
1141	* appropriately.
1142	*/
1143	if (tmp->container==op) {
1144	CLEAR_FLAG(op, FLAG_APPLIED);
1145	tmp->container=NULL;
1146	}
1147	tmp->contr->socket.update_look=1;
1148	}
1149	/* See if player moving off should effect something */
1150	if (check_walk_off && ((op->move_type & tmp->move_off) &&
1151	(op->move_type & ~tmp->move_off & ~tmp->move_block)==0)) {
1152
1153	move_apply(tmp, op, NULL);
1154	if (was_destroyed (op, tag)) {
1155	LOG (llevError, "BUG: remove_ob(): name %s, archname %s destroyed "
1156	"leaving object\n", &tmp->name, &tmp->arch->name);
1157	}
1158	}
1159
1160	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1161
1162	if(tmp->above == tmp)
1163	tmp->above = NULL;
1164	last=tmp;
1165	}
1166	/* last == NULL of there are no objects on this space */	1084	/* last == NULL of there are no objects on this space */
1167	if (last==NULL) {	1085	if (!last)
1168	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,	1086	map->at (x, y).flags_ = P_NEED_UPDATE;
1169	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1170	* those out anyways, and if there are any flags set right now, they won't
1171	* be correct anyways.
1172	*/
1173	SET_MAP_FLAGS(op->map, op->x, op->y, P_NEED_UPDATE);
1174	update_position(op->map, op->x, op->y);
1175	}
1176	else	1087	else
1177	update_object(last, UP_OBJ_REMOVE);	1088	update_object (last, UP_OBJ_REMOVE);
1178		1089
1179	if(QUERY_FLAG(op,FLAG_BLOCKSVIEW)|| (op->glow_radius != 0))	1090	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1180	update_all_los(op->map, op->x, op->y);	1091	update_all_los (map, x, y);
1181		1092	}
1182	}	1093	}
1183		1094
1184	/*	1095	/*
1185	* merge_ob(op,top):	1096	* merge_ob(op,top):
1186	*	1097	*
1187	* This function goes through all objects below and including top, and	1098	* This function goes through all objects below and including top, and
1188	* merges op to the first matching object.	1099	* merges op to the first matching object.
1189	* If top is NULL, it is calculated.	1100	* If top is NULL, it is calculated.
1190	* Returns pointer to object if it succeded in the merge, otherwise NULL	1101	* Returns pointer to object if it succeded in the merge, otherwise NULL
1191	*/	1102	*/
1192		1103	object *
1193	object *merge_ob(object *op, object *top) {	1104	merge_ob (object *op, object *top)
		1105	{
1194	if(!op->nrof)	1106	if (!op->nrof)
1195	return 0;	1107	return 0;
1196	if(top==NULL)	1108
		1109	if (top)
1197	for(top=op;top!=NULL&&top->above!=NULL;top=top->above);	1110	for (top = op; top && top->above; top = top->above)
		1111	;
		1112
1198	for(;top!=NULL;top=top->below) {	1113	for (; top; top = top->below)
		1114	{
1199	if(top==op)	1115	if (top == op)
1200	continue;	1116	continue;
1201	if (CAN_MERGE(op,top))	1117
1202	{	1118	if (object::can_merge (op, top))
		1119	{
1203	top->nrof+=op->nrof;	1120	top->nrof += op->nrof;
		1121
1204	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1122	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1205	op->weight = 0; /* Don't want any adjustements now */	1123	op->weight = 0; /* Don't want any adjustements now */
1206	remove_ob(op);	1124	op->destroy ();
1207	free_object(op);
1208	return top;	1125	return top;
1209	}	1126	}
1210	}	1127	}
		1128
1211	return NULL;	1129	return 0;
1212	}	1130	}
1213		1131
1214	/*	1132	/*
1215	* same as insert_ob_in_map except it handle separate coordinates and do a clean	1133	* same as insert_ob_in_map except it handle separate coordinates and do a clean
1216	* job preparing multi-part monsters	1134	* job preparing multi-part monsters
1217	*/	1135	*/
		1136	object *
1218	object *insert_ob_in_map_at(object *op, mapstruct *m, object *originator, int flag, int x, int y){	1137	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
		1138	{
1219	object* tmp;	1139	object *tmp;
		1140
1220	if (op->head)	1141	if (op->head)
1221	op=op->head;	1142	op = op->head;
		1143
1222	for (tmp=op;tmp;tmp=tmp->more){	1144	for (tmp = op; tmp; tmp = tmp->more)
		1145	{
1223	tmp->x=x+tmp->arch->clone.x;	1146	tmp->x = x + tmp->arch->clone.x;
1224	tmp->y=y+tmp->arch->clone.y;	1147	tmp->y = y + tmp->arch->clone.y;
1225	}	1148	}
		1149
1226	return insert_ob_in_map (op, m, originator, flag);	1150	return insert_ob_in_map (op, m, originator, flag);
1227	}	1151	}
1228		1152
1229	/*	1153	/*
1230	* insert_ob_in_map (op, map, originator, flag):	1154	* insert_ob_in_map (op, map, originator, flag):
1231	* This function inserts the object in the two-way linked list	1155	* This function inserts the object in the two-way linked list
…		…
1244	* Return value:	1168	* Return value:
1245	* new object if 'op' was merged with other object	1169	* new object if 'op' was merged with other object
1246	* NULL if 'op' was destroyed	1170	* NULL if 'op' was destroyed
1247	* just 'op' otherwise	1171	* just 'op' otherwise
1248	*/	1172	*/
1249		1173	object *
1250	object *insert_ob_in_map (object *op, mapstruct *m, object *originator, int flag)	1174	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1251	{	1175	{
1252	object *tmp, *top, *floor=NULL;	1176	object *tmp, *top, *floor = NULL;
1253	sint16 x,y;	1177	sint16 x, y;
1254		1178
1255	if (QUERY_FLAG (op, FLAG_FREED)) {	1179	if (QUERY_FLAG (op, FLAG_FREED))
		1180	{
1256	LOG (llevError, "Trying to insert freed object!\n");	1181	LOG (llevError, "Trying to insert freed object!\n");
1257	return NULL;	1182	return NULL;
		1183	}
		1184
		1185	if (m == NULL)
1258	}	1186	{
1259	if(m==NULL) {
1260	dump_object(op);	1187	char *dump = dump_object (op);
1261	LOG(llevError,"Trying to insert in null-map!\n%s\n",errmsg);	1188	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
		1189	free (dump);
1262	return op;	1190	return op;
1263	}	1191	}
		1192
1264	if(out_of_map(m,op->x,op->y)) {	1193	if (out_of_map (m, op->x, op->y))
		1194	{
1265	dump_object(op);	1195	char *dump = dump_object (op);
1266	LOG(llevError,"Trying to insert object outside the map.\n%s\n", errmsg);	1196	LOG (llevError, "Trying to insert object outside the map.\n%s\n", dump);
1267	#ifdef MANY_CORES	1197	#ifdef MANY_CORES
1268	/* Better to catch this here, as otherwise the next use of this object	1198	/* Better to catch this here, as otherwise the next use of this object
1269	* is likely to cause a crash. Better to find out where it is getting	1199	* is likely to cause a crash. Better to find out where it is getting
1270	* improperly inserted.	1200	* improperly inserted.
1271	*/	1201	*/
1272	abort();	1202	abort ();
1273	#endif	1203	#endif
		1204	free (dump);
1274	return op;	1205	return op;
1275	}	1206	}
		1207
1276	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1208	if (!QUERY_FLAG (op, FLAG_REMOVED))
		1209	{
1277	dump_object(op);	1210	char *dump = dump_object (op);
1278	LOG(llevError,"Trying to insert (map) inserted object.\n%s\n", errmsg);	1211	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
		1212	free (dump);
1279	return op;	1213	return op;
		1214	}
		1215
		1216	if (op->more)
1280	}	1217	{
1281	if(op->more!=NULL) {
1282	/* The part may be on a different map. */	1218	/* The part may be on a different map. */
1283		1219
1284	object *more = op->more;	1220	object *more = op->more;
1285		1221
1286	/* We really need the caller to normalize coordinates - if	1222	/* We really need the caller to normalize coordinates - if
1287	* we set the map, that doesn't work if the location is within	1223	* we set the map, that doesn't work if the location is within
1288	* a map and this is straddling an edge. So only if coordinate	1224	* a map and this is straddling an edge. So only if coordinate
1289	* is clear wrong do we normalize it.	1225	* is clear wrong do we normalize it.
1290	*/	1226	*/
1291	if (OUT_OF_REAL_MAP(more->map, more->x, more->y)) {	1227	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1292	more->map = get_map_from_coord(m, &more->x, &more->y);	1228	more->map = get_map_from_coord (m, &more->x, &more->y);
1293	} else if (!more->map) {	1229	else if (!more->map)
		1230	{
1294	/* For backwards compatibility - when not dealing with tiled maps,	1231	/* For backwards compatibility - when not dealing with tiled maps,
1295	* more->map should always point to the parent.	1232	* more->map should always point to the parent.
1296	*/	1233	*/
1297	more->map = m;	1234	more->map = m;
1298	}	1235	}
1299		1236
1300	if (insert_ob_in_map(more, more->map, originator, flag) == NULL) {	1237	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
		1238	{
1301	if ( ! op->head)	1239	if (!op->head)
1302	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1240	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
		1241
1303	return NULL;	1242	return 0;
1304	}	1243	}
1305	}	1244	}
		1245
1306	CLEAR_FLAG(op,FLAG_REMOVED);	1246	CLEAR_FLAG (op, FLAG_REMOVED);
1307		1247
1308	/* Ideally, the caller figures this out. However, it complicates a lot	1248	/* Ideally, the caller figures this out. However, it complicates a lot
1309	* of areas of callers (eg, anything that uses find_free_spot would now	1249	* of areas of callers (eg, anything that uses find_free_spot would now
1310	* need extra work	1250	* need extra work
1311	*/	1251	*/
1312	op->map=get_map_from_coord(m, &op->x, &op->y);	1252	op->map = get_map_from_coord (m, &op->x, &op->y);
1313	x = op->x;	1253	x = op->x;
1314	y = op->y;	1254	y = op->y;
1315		1255
1316	/* this has to be done after we translate the coordinates.	1256	/* this has to be done after we translate the coordinates.
1317	*/	1257	*/
1318	if(op->nrof && !(flag & INS_NO_MERGE)) {	1258	if (op->nrof && !(flag & INS_NO_MERGE))
1319	for(tmp=GET_MAP_OB(op->map,x,y);tmp!=NULL;tmp=tmp->above)	1259	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1320	if (CAN_MERGE(op,tmp)) {	1260	if (object::can_merge (op, tmp))
		1261	{
1321	op->nrof+=tmp->nrof;	1262	op->nrof += tmp->nrof;
1322	remove_ob(tmp);	1263	tmp->destroy ();
1323	free_object(tmp);	1264	}
		1265
		1266	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
		1267	CLEAR_FLAG (op, FLAG_INV_LOCKED);
		1268
		1269	if (!QUERY_FLAG (op, FLAG_ALIVE))
		1270	CLEAR_FLAG (op, FLAG_NO_STEAL);
		1271
		1272	if (flag & INS_BELOW_ORIGINATOR)
		1273	{
		1274	if (originator->map != op->map || originator->x != op->x || originator->y != op->y)
		1275	{
		1276	LOG (llevError, "insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");
		1277	abort ();
		1278	}
		1279
		1280	op->above = originator;
		1281	op->below = originator->below;
		1282
		1283	if (op->below)
		1284	op->below->above = op;
		1285	else
		1286	op->ms ().bot = op;
		1287
		1288	/* since *below* originator, no need to update top */
		1289	originator->below = op;
		1290	}
		1291	else
		1292	{
		1293	/* If there are other objects, then */
		1294	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
		1295	{
		1296	object *last = NULL;
		1297
		1298	/*
		1299	* If there are multiple objects on this space, we do some trickier handling.
		1300	* We've already dealt with merging if appropriate.
		1301	* Generally, we want to put the new object on top. But if
		1302	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
		1303	* floor, we want to insert above that and no further.
		1304	* Also, if there are spell objects on this space, we stop processing
		1305	* once we get to them. This reduces the need to traverse over all of
		1306	* them when adding another one - this saves quite a bit of cpu time
		1307	* when lots of spells are cast in one area. Currently, it is presumed
		1308	* that flying non pickable objects are spell objects.
		1309	*/
		1310
		1311	while (top != NULL)
		1312	{
		1313	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
		1314	floor = top;
		1315
		1316	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
		1317	{
		1318	/* We insert above top, so we want this object below this */
		1319	top = top->below;
		1320	break;
		1321	}
		1322
		1323	last = top;
		1324	top = top->above;
1324	}	1325	}
1325	}
1326		1326
1327	CLEAR_FLAG(op,FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1327	/* Don't want top to be NULL, so set it to the last valid object */
1328	CLEAR_FLAG(op, FLAG_INV_LOCKED);	1328	top = last;
1329	if (!QUERY_FLAG(op, FLAG_ALIVE))
1330	CLEAR_FLAG(op, FLAG_NO_STEAL);
1331		1329
1332	if (flag & INS_BELOW_ORIGINATOR) {	1330	/* We let update_position deal with figuring out what the space
1333	if (originator->map != op->map || originator->x != op->x ||	1331	* looks like instead of lots of conditions here.
1334	originator->y != op->y) {	1332	* makes things faster, and effectively the same result.
1335	LOG(llevError,"insert_ob_in_map called with INS_BELOW_ORIGINATOR when originator not on same space!\n");	1333	*/
1336	abort();	1334
		1335	/* Have object 'fall below' other objects that block view.
		1336	* Unless those objects are exits, type 66
		1337	* If INS_ON_TOP is used, don't do this processing
		1338	* Need to find the object that in fact blocks view, otherwise
		1339	* stacking is a bit odd.
		1340	*/
		1341	if (!(flag & INS_ON_TOP) &&
		1342	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
		1343	{
		1344	for (last = top; last != floor; last = last->below)
		1345	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
		1346	break;
		1347	/* Check to see if we found the object that blocks view,
		1348	* and make sure we have a below pointer for it so that
		1349	* we can get inserted below this one, which requires we
		1350	* set top to the object below us.
		1351	*/
		1352	if (last && last->below && last != floor)
		1353	top = last->below;
		1354	}
		1355	} /* If objects on this space */
		1356
		1357	if (flag & INS_MAP_LOAD)
		1358	top = GET_MAP_TOP (op->map, op->x, op->y);
		1359
		1360	if (flag & INS_ABOVE_FLOOR_ONLY)
		1361	top = floor;
		1362
		1363	/* Top is the object that our object (op) is going to get inserted above.
		1364	*/
		1365
		1366	/* First object on this space */
		1367	if (!top)
		1368	{
		1369	op->above = GET_MAP_OB (op->map, op->x, op->y);
		1370
		1371	if (op->above)
		1372	op->above->below = op;
		1373
		1374	op->below = NULL;
		1375	op->ms ().bot = op;
1337	}	1376	}
1338	op->above = originator;
1339	op->below = originator->below;
1340	if (op->below) op->below->above = op;
1341	else SET_MAP_OB(op->map, op->x, op->y, op);
1342	/* since *below* originator, no need to update top */
1343	originator->below = op;
1344	} else {	1377	else
1345	/* If there are other objects, then */
1346	if((! (flag & INS_MAP_LOAD)) && ((top=GET_MAP_OB(op->map,op->x,op->y))!=NULL)) {
1347	object *last=NULL;
1348	/*
1349	* If there are multiple objects on this space, we do some trickier handling.
1350	* We've already dealt with merging if appropriate.
1351	* Generally, we want to put the new object on top. But if
1352	* flag contains INS_ABOVE_FLOOR_ONLY, once we find the last
1353	* floor, we want to insert above that and no further.
1354	* Also, if there are spell objects on this space, we stop processing
1355	* once we get to them. This reduces the need to traverse over all of
1356	* them when adding another one - this saves quite a bit of cpu time
1357	* when lots of spells are cast in one area. Currently, it is presumed
1358	* that flying non pickable objects are spell objects.
1359	*/
1360
1361	while (top != NULL) {
1362	if (QUERY_FLAG(top, FLAG_IS_FLOOR) ||
1363	QUERY_FLAG(top, FLAG_OVERLAY_FLOOR)) floor = top;
1364	if (QUERY_FLAG(top, FLAG_NO_PICK)
1365	&& (top->move_type & (MOVE_FLY_LOW |MOVE_FLY_HIGH))
1366	&& !QUERY_FLAG(top, FLAG_IS_FLOOR))
1367	{
1368	/* We insert above top, so we want this object below this */
1369	top=top->below;
1370	break;
1371	}
1372	last = top;
1373	top = top->above;
1374	}
1375	/* Don't want top to be NULL, so set it to the last valid object */
1376	top = last;
1377
1378	/* We let update_position deal with figuring out what the space
1379	* looks like instead of lots of conditions here.
1380	* makes things faster, and effectively the same result.
1381	*/
1382
1383	/* Have object 'fall below' other objects that block view.
1384	* Unless those objects are exits, type 66
1385	* If INS_ON_TOP is used, don't do this processing
1386	* Need to find the object that in fact blocks view, otherwise
1387	* stacking is a bit odd.
1388	*/
1389	if (!(flag & INS_ON_TOP) &&
1390	(get_map_flags(op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) &&
1391	(op->face && !op->face->visibility)) {
1392	for (last=top; last != floor; last=last->below)
1393	if (QUERY_FLAG(last, FLAG_BLOCKSVIEW)&&(last->type != EXIT)) break;
1394	/* Check to see if we found the object that blocks view,
1395	* and make sure we have a below pointer for it so that
1396	* we can get inserted below this one, which requires we
1397	* set top to the object below us.
1398	*/
1399	if (last && last->below && last != floor) top=last->below;
1400	}
1401	} /* If objects on this space */
1402	if (flag & INS_MAP_LOAD)
1403	top = GET_MAP_TOP(op->map,op->x,op->y);
1404	if (flag & INS_ABOVE_FLOOR_ONLY) top = floor;
1405
1406	/* Top is the object that our object (op) is going to get inserted above.
1407	*/
1408
1409	/* First object on this space */
1410	if (!top) {
1411	op->above = GET_MAP_OB(op->map, op->x, op->y);
1412	if (op->above) op->above->below = op;
1413	op->below = NULL;
1414	SET_MAP_OB(op->map, op->x, op->y, op);
1415	} else { /* get inserted into the stack above top */	1378	{ /* get inserted into the stack above top */
1416	op->above = top->above;	1379	op->above = top->above;
		1380
		1381	if (op->above)
1417	if (op->above) op->above->below = op;	1382	op->above->below = op;
		1383
1418	op->below = top;	1384	op->below = top;
1419	top->above = op;	1385	top->above = op;
1420	}	1386	}
		1387
1421	if (op->above==NULL)	1388	if (op->above == NULL)
1422	SET_MAP_TOP(op->map,op->x, op->y, op);	1389	op->ms ().top = op;
1423	} /* else not INS_BELOW_ORIGINATOR */	1390	} /* else not INS_BELOW_ORIGINATOR */
1424		1391
1425	if(op->type==PLAYER)	1392	if (op->type == PLAYER)
1426	op->contr->do_los=1;	1393	op->contr->do_los = 1;
1427		1394
1428	/* If we have a floor, we know the player, if any, will be above	1395	/* If we have a floor, we know the player, if any, will be above
1429	* it, so save a few ticks and start from there.	1396	* it, so save a few ticks and start from there.
1430	*/	1397	*/
1431	if (!(flag & INS_MAP_LOAD))	1398	if (!(flag & INS_MAP_LOAD))
1432	for(tmp=floor?floor:GET_MAP_OB(op->map,op->x,op->y);tmp!=NULL;tmp=tmp->above) {	1399	if (object *pl = op->ms ().player ())
1433	if (tmp->type == PLAYER)	1400	if (pl->contr->ns)
1434	tmp->contr->socket.update_look=1;	1401	pl->contr->ns->floorbox_update ();
1435	}
1436		1402
1437	/* If this object glows, it may affect lighting conditions that are	1403	/* If this object glows, it may affect lighting conditions that are
1438	* visible to others on this map. But update_all_los is really	1404	* visible to others on this map. But update_all_los is really
1439	* an inefficient way to do this, as it means los for all players	1405	* an inefficient way to do this, as it means los for all players
1440	* on the map will get recalculated. The players could very well	1406	* on the map will get recalculated. The players could very well
1441	* be far away from this change and not affected in any way -	1407	* be far away from this change and not affected in any way -
1442	* this should get redone to only look for players within range,	1408	* this should get redone to only look for players within range,
1443	* or just updating the P_NEED_UPDATE for spaces within this area	1409	* or just updating the P_NEED_UPDATE for spaces within this area
1444	* of effect may be sufficient.	1410	* of effect may be sufficient.
1445	*/	1411	*/
1446	if(MAP_DARKNESS(op->map) && (op->glow_radius != 0))	1412	if (op->map->darkness && (op->glow_radius != 0))
1447	update_all_los(op->map, op->x, op->y);	1413	update_all_los (op->map, op->x, op->y);
1448		1414
1449
1450	/* updates flags (blocked, alive, no magic, etc) for this map space */	1415	/* updates flags (blocked, alive, no magic, etc) for this map space */
1451	update_object(op,UP_OBJ_INSERT);	1416	update_object (op, UP_OBJ_INSERT);
1452		1417
		1418	INVOKE_OBJECT (INSERT, op);
1453		1419
1454	/* Don't know if moving this to the end will break anything. However,	1420	/* Don't know if moving this to the end will break anything. However,
1455	* we want to have update_look set above before calling this.	1421	* we want to have floorbox_update called before calling this.
1456	*	1422	*
1457	* check_move_on() must be after this because code called from	1423	* check_move_on() must be after this because code called from
1458	* check_move_on() depends on correct map flags (so functions like	1424	* check_move_on() depends on correct map flags (so functions like
1459	* blocked() and wall() work properly), and these flags are updated by	1425	* blocked() and wall() work properly), and these flags are updated by
1460	* update_object().	1426	* update_object().
1461	*/	1427	*/
1462		1428
1463	/* if this is not the head or flag has been passed, don't check walk on status */	1429	/* if this is not the head or flag has been passed, don't check walk on status */
1464
1465	if (!(flag & INS_NO_WALK_ON) && !op->head) {	1430	if (!(flag & INS_NO_WALK_ON) && !op->head)
		1431	{
1466	if (check_move_on(op, originator))	1432	if (check_move_on (op, originator))
1467	return NULL;	1433	return 0;
1468		1434
1469	/* If we are a multi part object, lets work our way through the check	1435	/* If we are a multi part object, lets work our way through the check
1470	* walk on's.	1436	* walk on's.
1471	*/	1437	*/
1472	for (tmp=op->more; tmp!=NULL; tmp=tmp->more)	1438	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1473	if (check_move_on (tmp, originator))	1439	if (check_move_on (tmp, originator))
1474	return NULL;	1440	return 0;
1475	}	1441	}
		1442
1476	return op;	1443	return op;
1477	}	1444	}
1478		1445
1479	/* this function inserts an object in the map, but if it	1446	/* this function inserts an object in the map, but if it
1480	* finds an object of its own type, it'll remove that one first.	1447	* finds an object of its own type, it'll remove that one first.
1481	* op is the object to insert it under: supplies x and the map.	1448	* op is the object to insert it under: supplies x and the map.
1482	*/	1449	*/
		1450	void
1483	void replace_insert_ob_in_map(const char *arch_string, object *op) {	1451	replace_insert_ob_in_map (const char *arch_string, object *op)
1484	object *tmp;	1452	{
1485	object *tmp1;	1453	object *tmp, *tmp1;
1486		1454
1487	/* first search for itself and remove any old instances */	1455	/* first search for itself and remove any old instances */
1488		1456
1489	for(tmp=GET_MAP_OB(op->map,op->x,op->y); tmp!=NULL; tmp=tmp->above) {	1457	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1490	if(!strcmp(tmp->arch->name,arch_string)) /* same archetype */ {	1458	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1491	remove_ob(tmp);	1459	tmp->destroy ();
1492	free_object(tmp);
1493	}
1494	}
1495		1460
1496	tmp1=arch_to_object(find_archetype(arch_string));	1461	tmp1 = arch_to_object (archetype::find (arch_string));
1497		1462
1498		1463	tmp1->x = op->x;
1499	tmp1->x = op->x; tmp1->y = op->y;	1464	tmp1->y = op->y;
1500	insert_ob_in_map(tmp1,op->map,op,0);	1465	insert_ob_in_map (tmp1, op->map, op, 0);
1501	}	1466	}
1502		1467
1503	/*	1468	/*
1504	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1469	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1505	* is returned contains nr objects, and the remaining parts contains	1470	* is returned contains nr objects, and the remaining parts contains
1506	* the rest (or is removed and freed if that number is 0).	1471	* the rest (or is removed and freed if that number is 0).
1507	* On failure, NULL is returned, and the reason put into the	1472	* On failure, NULL is returned, and the reason put into the
1508	* global static errmsg array.	1473	* global static errmsg array.
1509	*/	1474	*/
1510		1475
		1476	object *
1511	object *get_split_ob(object *orig_ob, uint32 nr) {	1477	get_split_ob (object *orig_ob, uint32 nr)
		1478	{
1512	object *newob;	1479	object *newob;
1513	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1480	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1514		1481
1515	if(orig_ob->nrof<nr) {	1482	if (orig_ob->nrof < nr)
1516	sprintf(errmsg,"There are only %d %ss.",	1483	{
1517	orig_ob->nrof?orig_ob->nrof:1, &orig_ob->name);	1484	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1518	return NULL;	1485	return NULL;
1519	}	1486	}
		1487
1520	newob = object_create_clone(orig_ob);	1488	newob = object_create_clone (orig_ob);
		1489
1521	if((orig_ob->nrof-=nr)<1) {	1490	if ((orig_ob->nrof -= nr) < 1)
1522	if ( ! is_removed)	1491	orig_ob->destroy (1);
1523	remove_ob(orig_ob);
1524	free_object2(orig_ob, 1);
1525	}
1526	else if ( ! is_removed) {	1492	else if (!is_removed)
		1493	{
1527	if(orig_ob->env!=NULL)	1494	if (orig_ob->env != NULL)
1528	sub_weight (orig_ob->env,orig_ob->weight*nr);	1495	sub_weight (orig_ob->env, orig_ob->weight * nr);
1529	if (orig_ob->env == NULL && orig_ob->map->in_memory!=MAP_IN_MEMORY) {	1496	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
		1497	{
1530	strcpy(errmsg, "Tried to split object whose map is not in memory.");	1498	strcpy (errmsg, "Tried to split object whose map is not in memory.");
1531	LOG(llevDebug,
1532	"Error, Tried to split object whose map is not in memory.\n");	1499	LOG (llevDebug, "Error, Tried to split object whose map is not in memory.\n");
1533	return NULL;	1500	return NULL;
1534	}	1501	}
1535	}	1502	}
		1503
1536	newob->nrof=nr;	1504	newob->nrof = nr;
1537		1505
1538	return newob;	1506	return newob;
1539	}	1507	}
1540		1508
1541	/*	1509	/*
1542	* decrease_ob_nr(object, number) decreases a specified number from	1510	* decrease_ob_nr(object, number) decreases a specified number from
1543	* the amount of an object. If the amount reaches 0, the object	1511	* the amount of an object. If the amount reaches 0, the object
1544	* is subsequently removed and freed.	1512	* is subsequently removed and freed.
1545	*	1513	*
1546	* Return value: 'op' if something is left, NULL if the amount reached 0	1514	* Return value: 'op' if something is left, NULL if the amount reached 0
1547	*/	1515	*/
1548		1516
		1517	object *
1549	object *decrease_ob_nr (object *op, uint32 i)	1518	decrease_ob_nr (object *op, uint32 i)
1550	{	1519	{
1551	object *tmp;	1520	object *tmp;
1552	player *pl;
1553		1521
1554	if (i == 0) /* objects with op->nrof require this check */	1522	if (i == 0) /* objects with op->nrof require this check */
1555	return op;	1523	return op;
1556		1524
1557	if (i > op->nrof)	1525	if (i > op->nrof)
1558	i = op->nrof;	1526	i = op->nrof;
1559		1527
1560	if (QUERY_FLAG (op, FLAG_REMOVED))	1528	if (QUERY_FLAG (op, FLAG_REMOVED))
		1529	op->nrof -= i;
		1530	else if (op->env)
		1531	{
		1532	/* is this object in the players inventory, or sub container
		1533	* therein?
		1534	*/
		1535	tmp = op->in_player ();
		1536	/* nope. Is this a container the player has opened?
		1537	* If so, set tmp to that player.
		1538	* IMO, searching through all the players will mostly
		1539	* likely be quicker than following op->env to the map,
		1540	* and then searching the map for a player.
		1541	*/
		1542	if (!tmp)
		1543	for_all_players (pl)
		1544	if (pl->ob->container == op->env)
		1545	{
		1546	tmp = pl->ob;
		1547	break;
		1548	}
		1549
		1550	if (i < op->nrof)
		1551	{
		1552	sub_weight (op->env, op->weight * i);
		1553	op->nrof -= i;
		1554	if (tmp)
		1555	esrv_send_item (tmp, op);
		1556	}
		1557	else
		1558	{
		1559	op->remove ();
		1560	op->nrof = 0;
		1561	if (tmp)
		1562	esrv_del_item (tmp->contr, op->count);
		1563	}
1561	{	1564	}
		1565	else
		1566	{
		1567	object *above = op->above;
		1568
		1569	if (i < op->nrof)
1562	op->nrof -= i;	1570	op->nrof -= i;
1563	}	1571	else
1564	else if (op->env != NULL)
1565	{
1566	/* is this object in the players inventory, or sub container
1567	* therein?
1568	*/	1572	{
1569	tmp = is_player_inv (op->env);	1573	op->remove ();
1570	/* nope. Is this a container the player has opened?	1574	op->nrof = 0;
1571	* If so, set tmp to that player.
1572	* IMO, searching through all the players will mostly
1573	* likely be quicker than following op->env to the map,
1574	* and then searching the map for a player.
1575	*/
1576	if (!tmp) {
1577	for (pl=first_player; pl; pl=pl->next)
1578	if (pl->ob->container == op->env) break;
1579	if (pl) tmp=pl->ob;
1580	else tmp=NULL;
1581	}	1575	}
1582		1576
1583	if (i < op->nrof) {
1584	sub_weight (op->env, op->weight * i);
1585	op->nrof -= i;
1586	if (tmp) {
1587	esrv_send_item(tmp, op);
1588	}
1589	} else {
1590	remove_ob (op);
1591	op->nrof = 0;
1592	if (tmp) {
1593	esrv_del_item(tmp->contr, op->count);
1594	}
1595	}
1596	}
1597	else
1598	{
1599	object *above = op->above;
1600
1601	if (i < op->nrof) {
1602	op->nrof -= i;
1603	} else {
1604	remove_ob (op);
1605	op->nrof = 0;
1606	}
1607	/* Since we just removed op, op->above is null */	1577	/* Since we just removed op, op->above is null */
1608	for (tmp = above; tmp != NULL; tmp = tmp->above)	1578	for (tmp = above; tmp; tmp = tmp->above)
1609	if (tmp->type == PLAYER) {	1579	if (tmp->type == PLAYER)
		1580	{
1610	if (op->nrof)	1581	if (op->nrof)
1611	esrv_send_item(tmp, op);	1582	esrv_send_item (tmp, op);
1612	else	1583	else
1613	esrv_del_item(tmp->contr, op->count);	1584	esrv_del_item (tmp->contr, op->count);
1614	}	1585	}
1615	}	1586	}
1616		1587
1617	if (op->nrof) {	1588	if (op->nrof)
1618	return op;	1589	return op;
1619	} else {	1590	else
1620	free_object (op);	1591	{
		1592	op->destroy ();
1621	return NULL;	1593	return 0;
1622	}	1594	}
1623	}	1595	}
1624		1596
1625	/*	1597	/*
1626	* add_weight(object, weight) adds the specified weight to an object,	1598	* add_weight(object, weight) adds the specified weight to an object,
1627	* and also updates how much the environment(s) is/are carrying.	1599	* and also updates how much the environment(s) is/are carrying.
1628	*/	1600	*/
1629		1601
		1602	void
1630	void add_weight (object *op, signed long weight) {	1603	add_weight (object *op, signed long weight)
		1604	{
1631	while (op!=NULL) {	1605	while (op != NULL)
		1606	{
1632	if (op->type == CONTAINER) {	1607	if (op->type == CONTAINER)
1633	weight=(signed long)(weight*(100-op->stats.Str)/100);	1608	weight = (signed long) (weight * (100 - op->stats.Str) / 100);
1634	}	1609
1635	op->carrying+=weight;	1610	op->carrying += weight;
1636	op=op->env;	1611	op = op->env;
1637	}	1612	}
1638	}	1613	}
1639		1614
		1615	object *
		1616	insert_ob_in_ob (object *op, object *where)
		1617	{
		1618	if (!where)
		1619	{
		1620	char *dump = dump_object (op);
		1621	LOG (llevError, "Trying to put object in NULL.\n%s\n", dump);
		1622	free (dump);
		1623	return op;
		1624	}
		1625
		1626	if (where->head)
		1627	{
		1628	LOG (llevDebug, "Warning: Tried to insert object into wrong part of multipart object.\n");
		1629	where = where->head;
		1630	}
		1631
		1632	return where->insert (op);
		1633	}
		1634
1640	/*	1635	/*
1641	* insert_ob_in_ob(op,environment):	1636	* env->insert (op)
1642	* This function inserts the object op in the linked list	1637	* This function inserts the object op in the linked list
1643	* inside the object environment.	1638	* inside the object environment.
1644	*	1639	*
1645	* Eneq(@csd.uu.se): Altered insert_ob_in_ob to make things picked up enter
1646	* the inventory at the last position or next to other objects of the same
1647	* type.
1648	* Frank: Now sorted by type, archetype and magic!
1649	*
1650	* The function returns now pointer to inserted item, and return value can	1640	* The function returns now pointer to inserted item, and return value can
1651	* be != op, if items are merged. -Tero	1641	* be != op, if items are merged. -Tero
1652	*/	1642	*/
1653		1643
1654	object *insert_ob_in_ob(object *op,object *where) {	1644	object *
		1645	object::insert (object *op)
		1646	{
1655	object *tmp, *otmp;	1647	object *tmp, *otmp;
1656		1648
1657	if(!QUERY_FLAG(op,FLAG_REMOVED)) {	1649	if (!QUERY_FLAG (op, FLAG_REMOVED))
1658	dump_object(op);	1650	op->remove ();
1659	LOG(llevError,"Trying to insert (ob) inserted object.\n%s\n", errmsg);	1651
1660	return op;
1661	}
1662	if(where==NULL) {
1663	dump_object(op);
1664	LOG(llevError,"Trying to put object in NULL.\n%s\n", errmsg);
1665	return op;
1666	}
1667	if (where->head) {
1668	LOG(llevDebug,
1669	"Warning: Tried to insert object wrong part of multipart object.\n");
1670	where = where->head;
1671	}
1672	if (op->more) {	1652	if (op->more)
		1653	{
1673	LOG(llevError, "Tried to insert multipart object %s (%d)\n",	1654	LOG (llevError, "Tried to insert multipart object %s (%d)\n", &op->name, op->count);
1674	&op->name, op->count);
1675	return op;	1655	return op;
1676	}	1656	}
		1657
1677	CLEAR_FLAG(op, FLAG_OBJ_ORIGINAL);	1658	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1678	CLEAR_FLAG(op, FLAG_REMOVED);	1659	CLEAR_FLAG (op, FLAG_REMOVED);
1679	if(op->nrof) {	1660	if (op->nrof)
		1661	{
1680	for(tmp=where->inv;tmp!=NULL;tmp=tmp->below)	1662	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1681	if ( CAN_MERGE(tmp,op) ) {	1663	if (object::can_merge (tmp, op))
		1664	{
1682	/* return the original object and remove inserted object	1665	/* return the original object and remove inserted object
1683	(client needs the original object) */	1666	(client needs the original object) */
1684	tmp->nrof += op->nrof;	1667	tmp->nrof += op->nrof;
1685	/* Weight handling gets pretty funky. Since we are adding to	1668	/* Weight handling gets pretty funky. Since we are adding to
1686	* tmp->nrof, we need to increase the weight.	1669	* tmp->nrof, we need to increase the weight.
1687	*/	1670	*/
1688	add_weight (where, op->weight*op->nrof);	1671	add_weight (this, op->weight * op->nrof);
1689	SET_FLAG(op, FLAG_REMOVED);	1672	SET_FLAG (op, FLAG_REMOVED);
1690	free_object(op); /* free the inserted object */	1673	op->destroy (); /* free the inserted object */
1691	op = tmp;	1674	op = tmp;
1692	remove_ob (op); /* and fix old object's links */	1675	op->remove (); /* and fix old object's links */
1693	CLEAR_FLAG(op, FLAG_REMOVED);	1676	CLEAR_FLAG (op, FLAG_REMOVED);
1694	break;	1677	break;
1695	}	1678	}
1696		1679
1697	/* I assume combined objects have no inventory	1680	/* I assume combined objects have no inventory
1698	* We add the weight - this object could have just been removed	1681	* We add the weight - this object could have just been removed
1699	* (if it was possible to merge). calling remove_ob will subtract	1682	* (if it was possible to merge). calling remove_ob will subtract
1700	* the weight, so we need to add it in again, since we actually do	1683	* the weight, so we need to add it in again, since we actually do
1701	* the linking below	1684	* the linking below
1702	*/	1685	*/
1703	add_weight (where, op->weight*op->nrof);	1686	add_weight (this, op->weight * op->nrof);
		1687	}
1704	} else	1688	else
1705	add_weight (where, (op->weight+op->carrying));	1689	add_weight (this, (op->weight + op->carrying));
1706		1690
1707	otmp=is_player_inv(where);	1691	otmp = this->in_player ();
1708	if (otmp&&otmp->contr!=NULL) {	1692	if (otmp && otmp->contr)
1709	if (!QUERY_FLAG(otmp,FLAG_NO_FIX_PLAYER))	1693	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1710	fix_player(otmp);	1694	otmp->update_stats ();
1711	}
1712		1695
1713	op->map=NULL;	1696	op->map = 0;
1714	op->env=where;	1697	op->env = this;
1715	op->above=NULL;	1698	op->above = 0;
1716	op->below=NULL;	1699	op->below = 0;
1717	op->x=0,op->y=0;	1700	op->x = 0, op->y = 0;
1718		1701
1719	/* reset the light list and los of the players on the map */	1702	/* reset the light list and los of the players on the map */
1720	if((op->glow_radius!=0)&&where->map)	1703	if ((op->glow_radius != 0) && map)
1721	{	1704	{
1722	#ifdef DEBUG_LIGHTS	1705	#ifdef DEBUG_LIGHTS
1723	LOG(llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n",	1706	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1724	op->name);
1725	#endif /* DEBUG_LIGHTS */	1707	#endif /* DEBUG_LIGHTS */
1726	if (MAP_DARKNESS(where->map)) update_all_los(where->map, where->x, where->y);	1708	if (map->darkness)
		1709	update_all_los (map, x, y);
1727	}	1710	}
1728		1711
1729	/* Client has no idea of ordering so lets not bother ordering it here.	1712	/* Client has no idea of ordering so lets not bother ordering it here.
1730	* It sure simplifies this function...	1713	* It sure simplifies this function...
1731	*/	1714	*/
1732	if (where->inv==NULL)	1715	if (!inv)
1733	where->inv=op;	1716	inv = op;
1734	else {	1717	else
		1718	{
1735	op->below = where->inv;	1719	op->below = inv;
1736	op->below->above = op;	1720	op->below->above = op;
1737	where->inv = op;	1721	inv = op;
1738	}	1722	}
		1723
		1724	INVOKE_OBJECT (INSERT, this);
		1725
1739	return op;	1726	return op;
1740	}	1727	}
1741		1728
1742	/*	1729	/*
1743	* Checks if any objects has a move_type that matches objects	1730	* Checks if any objects has a move_type that matches objects
…		…
1758	* MSW 2001-07-08: Check all objects on space, not just those below	1745	* MSW 2001-07-08: Check all objects on space, not just those below
1759	* object being inserted. insert_ob_in_map may not put new objects	1746	* object being inserted. insert_ob_in_map may not put new objects
1760	* on top.	1747	* on top.
1761	*/	1748	*/
1762		1749
		1750	int
1763	int check_move_on (object *op, object *originator)	1751	check_move_on (object *op, object *originator)
1764	{	1752	{
1765	object *tmp;	1753	object *tmp;
1766	tag_t tag;
1767	mapstruct *m=op->map;	1754	maptile *m = op->map;
1768	int x=op->x, y=op->y;	1755	int x = op->x, y = op->y;
		1756
1769	MoveType move_on, move_slow, move_block;	1757	MoveType move_on, move_slow, move_block;
1770		1758
1771	if(QUERY_FLAG(op,FLAG_NO_APPLY))	1759	if (QUERY_FLAG (op, FLAG_NO_APPLY))
1772	return 0;	1760	return 0;
1773		1761
1774	tag = op->count;
1775
1776	move_on = GET_MAP_MOVE_ON(op->map, op->x, op->y);	1762	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
1777	move_slow = GET_MAP_MOVE_SLOW(op->map, op->x, op->y);	1763	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
1778	move_block = GET_MAP_MOVE_BLOCK(op->map, op->x, op->y);	1764	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
1779		1765
1780	/* if nothing on this space will slow op down or be applied,	1766	/* if nothing on this space will slow op down or be applied,
1781	* no need to do checking below. have to make sure move_type	1767	* no need to do checking below. have to make sure move_type
1782	* is set, as lots of objects don't have it set - we treat that	1768	* is set, as lots of objects don't have it set - we treat that
1783	* as walking.	1769	* as walking.
1784	*/	1770	*/
1785	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))	1771	if (op->move_type && !(op->move_type & move_on) && !(op->move_type & move_slow))
1786	return 0;	1772	return 0;
1787		1773
1788	/* This is basically inverse logic of that below - basically,	1774	/* This is basically inverse logic of that below - basically,
1789	* if the object can avoid the move on or slow move, they do so,	1775	* if the object can avoid the move on or slow move, they do so,
1790	* but can't do it if the alternate movement they are using is	1776	* but can't do it if the alternate movement they are using is
1791	* blocked. Logic on this seems confusing, but does seem correct.	1777	* blocked. Logic on this seems confusing, but does seem correct.
1792	*/	1778	*/
1793	if ((op->move_type & ~move_on & ~move_block) != 0 &&	1779	if ((op->move_type & ~move_on & ~move_block) != 0 && (op->move_type & ~move_slow & ~move_block) != 0)
1794	(op->move_type & ~move_slow & ~move_block) != 0) return 0;	1780	return 0;
1795		1781
1796	/* The objects have to be checked from top to bottom.	1782	/* The objects have to be checked from top to bottom.
1797	* Hence, we first go to the top:	1783	* Hence, we first go to the top:
1798	*/	1784	*/
1799		1785
1800	for (tmp=GET_MAP_OB(op->map, op->x, op->y); tmp!=NULL &&	1786	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
1801	tmp->above!=NULL; tmp=tmp->above) {	1787	{
1802	/* Trim the search when we find the first other spell effect	1788	/* Trim the search when we find the first other spell effect
1803	* this helps performance so that if a space has 50 spell objects,	1789	* this helps performance so that if a space has 50 spell objects,
1804	* we don't need to check all of them.	1790	* we don't need to check all of them.
1805	*/	1791	*/
1806	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG(tmp, FLAG_NO_PICK)) break;	1792	if ((tmp->move_type & MOVE_FLY_LOW) && QUERY_FLAG (tmp, FLAG_NO_PICK))
		1793	break;
		1794	}
		1795
		1796	for (; tmp; tmp = tmp->below)
1807	}	1797	{
1808	for(;tmp!=NULL; tmp=tmp->below) {	1798	if (tmp == op)
1809	if (tmp == op) continue; /* Can't apply yourself */	1799	continue; /* Can't apply yourself */
1810		1800
1811	/* Check to see if one of the movement types should be slowed down.	1801	/* Check to see if one of the movement types should be slowed down.
1812	* Second check makes sure that the movement types not being slowed	1802	* Second check makes sure that the movement types not being slowed
1813	* (~slow_move) is not blocked on this space - just because the	1803	* (~slow_move) is not blocked on this space - just because the
1814	* space doesn't slow down swimming (for example), if you can't actually	1804	* space doesn't slow down swimming (for example), if you can't actually
1815	* swim on that space, can't use it to avoid the penalty.	1805	* swim on that space, can't use it to avoid the penalty.
1816	*/	1806	*/
1817	if (!QUERY_FLAG(op, FLAG_WIZPASS)) {	1807	if (!QUERY_FLAG (op, FLAG_WIZPASS))
		1808	{
1818	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||	1809	if ((!op->move_type && tmp->move_slow & MOVE_WALK) ||
1819	((op->move_type & tmp->move_slow) &&
1820	(op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0)) {	1810	((op->move_type & tmp->move_slow) && (op->move_type & ~tmp->move_slow & ~tmp->move_block) == 0))
		1811	{
1821		1812
1822	float diff;	1813	float
1823
1824	diff = tmp->move_slow_penalty*FABS(op->speed);	1814	diff = tmp->move_slow_penalty * FABS (op->speed);
		1815
1825	if (op->type == PLAYER) {	1816	if (op->type == PLAYER)
1826	if ((QUERY_FLAG(tmp, FLAG_IS_HILLY) && find_skill_by_number(op, SK_CLIMBING)) ||	1817	if ((QUERY_FLAG (tmp, FLAG_IS_HILLY) && find_skill_by_number (op, SK_CLIMBING)) ||
1827	(QUERY_FLAG(tmp, FLAG_IS_WOODED) && find_skill_by_number(op, SK_WOODSMAN))) {	1818	(QUERY_FLAG (tmp, FLAG_IS_WOODED) && find_skill_by_number (op, SK_WOODSMAN)))
1828	diff /= 4.0;	1819	diff /= 4.0;
1829	}	1820
1830	}
1831	op->speed_left -= diff;	1821	op->speed_left -= diff;
1832	}	1822	}
1833	}	1823	}
1834		1824
1835	/* Basically same logic as above, except now for actual apply. */	1825	/* Basically same logic as above, except now for actual apply. */
1836	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||	1826	if ((!op->move_type && tmp->move_on & MOVE_WALK) ||
1837	((op->move_type & tmp->move_on) &&
1838	(op->move_type & ~tmp->move_on & ~tmp->move_block)==0)) {	1827	((op->move_type & tmp->move_on) && (op->move_type & ~tmp->move_on & ~tmp->move_block) == 0))
1839		1828	{
1840	move_apply(tmp, op, originator);	1829	move_apply (tmp, op, originator);
		1830
1841	if (was_destroyed (op, tag))	1831	if (op->destroyed ())
1842	return 1;	1832	return 1;
1843		1833
1844	/* what the person/creature stepped onto has moved the object	1834	/* what the person/creature stepped onto has moved the object
1845	* someplace new. Don't process any further - if we did,	1835	* someplace new. Don't process any further - if we did,
1846	* have a feeling strange problems would result.	1836	* have a feeling strange problems would result.
1847	*/	1837	*/
1848	if (op->map != m || op->x != x || op->y != y) return 0;	1838	if (op->map != m || op->x != x || op->y != y)
		1839	return 0;
1849	}	1840	}
1850	}	1841	}
		1842
1851	return 0;	1843	return 0;
1852	}	1844	}
1853		1845
1854	/*	1846	/*
1855	* present_arch(arch, map, x, y) searches for any objects with	1847	* present_arch(arch, map, x, y) searches for any objects with
1856	* a matching archetype at the given map and coordinates.	1848	* a matching archetype at the given map and coordinates.
1857	* The first matching object is returned, or NULL if none.	1849	* The first matching object is returned, or NULL if none.
1858	*/	1850	*/
1859		1851	object *
1860	object *present_arch(const archetype *at, mapstruct *m, int x, int y) {	1852	present_arch (const archetype *at, maptile *m, int x, int y)
1861	object *tmp;	1853	{
1862	if(m==NULL || out_of_map(m,x,y)) {	1854	if (m == NULL || out_of_map (m, x, y))
		1855	{
1863	LOG(llevError,"Present_arch called outside map.\n");	1856	LOG (llevError, "Present_arch called outside map.\n");
1864	return NULL;	1857	return NULL;
1865	}	1858	}
		1859
1866	for(tmp=GET_MAP_OB(m,x,y); tmp != NULL; tmp = tmp->above)	1860	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1867	if(tmp->arch == at)	1861	if (tmp->arch == at)
1868	return tmp;	1862	return tmp;
		1863
1869	return NULL;	1864	return NULL;
1870	}	1865	}
1871		1866
1872	/*	1867	/*
1873	* present(type, map, x, y) searches for any objects with	1868	* present(type, map, x, y) searches for any objects with
1874	* a matching type variable at the given map and coordinates.	1869	* a matching type variable at the given map and coordinates.
1875	* The first matching object is returned, or NULL if none.	1870	* The first matching object is returned, or NULL if none.
1876	*/	1871	*/
1877		1872	object *
1878	object *present(unsigned char type,mapstruct *m, int x,int y) {	1873	present (unsigned char type, maptile *m, int x, int y)
1879	object *tmp;	1874	{
1880	if(out_of_map(m,x,y)) {	1875	if (out_of_map (m, x, y))
		1876	{
1881	LOG(llevError,"Present called outside map.\n");	1877	LOG (llevError, "Present called outside map.\n");
1882	return NULL;	1878	return NULL;
1883	}	1879	}
		1880
1884	for(tmp=GET_MAP_OB(m,x,y);tmp!=NULL;tmp=tmp->above)	1881	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1885	if(tmp->type==type)	1882	if (tmp->type == type)
1886	return tmp;	1883	return tmp;
		1884
1887	return NULL;	1885	return NULL;
1888	}	1886	}
1889		1887
1890	/*	1888	/*
1891	* present_in_ob(type, object) searches for any objects with	1889	* present_in_ob(type, object) searches for any objects with
1892	* a matching type variable in the inventory of the given object.	1890	* a matching type variable in the inventory of the given object.
1893	* The first matching object is returned, or NULL if none.	1891	* The first matching object is returned, or NULL if none.
1894	*/	1892	*/
1895		1893	object *
1896	object *present_in_ob(unsigned char type, const object *op) {	1894	present_in_ob (unsigned char type, const object *op)
1897	object *tmp;	1895	{
1898	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1896	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1899	if(tmp->type==type)	1897	if (tmp->type == type)
1900	return tmp;	1898	return tmp;
		1899
1901	return NULL;	1900	return NULL;
1902	}	1901	}
1903		1902
1904	/*	1903	/*
1905	* present_in_ob (type, str, object) searches for any objects with	1904	* present_in_ob (type, str, object) searches for any objects with
…		…
1913	* str is the string to match against. Note that we match against	1912	* str is the string to match against. Note that we match against
1914	* the object name, not the archetype name. this is so that the	1913	* the object name, not the archetype name. this is so that the
1915	* spell code can use one object type (force), but change it's name	1914	* spell code can use one object type (force), but change it's name
1916	* to be unique.	1915	* to be unique.
1917	*/	1916	*/
1918		1917	object *
1919	object *present_in_ob_by_name(int type, const char *str, const object *op) {	1918	present_in_ob_by_name (int type, const char *str, const object *op)
1920	object *tmp;	1919	{
1921
1922	for(tmp=op->inv; tmp!=NULL; tmp=tmp->below) {	1920	for (object *tmp = op->inv; tmp; tmp = tmp->below)
1923	if ((type==-1 || tmp->type==type) && (!strcmp(str, tmp->name)))	1921	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
1924	return tmp;	1922	return tmp;
1925	}	1923
1926	return NULL;	1924	return 0;
1927	}	1925	}
1928		1926
1929	/*	1927	/*
1930	* present_arch_in_ob(archetype, object) searches for any objects with	1928	* present_arch_in_ob(archetype, object) searches for any objects with
1931	* a matching archetype in the inventory of the given object.	1929	* a matching archetype in the inventory of the given object.
1932	* The first matching object is returned, or NULL if none.	1930	* The first matching object is returned, or NULL if none.
1933	*/	1931	*/
1934		1932	object *
1935	object *present_arch_in_ob(const archetype *at, const object *op) {	1933	present_arch_in_ob (const archetype *at, const object *op)
1936	object *tmp;	1934	{
1937	for(tmp=op->inv;tmp!=NULL;tmp=tmp->below)	1935	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
1938	if( tmp->arch == at)	1936	if (tmp->arch == at)
1939	return tmp;	1937	return tmp;
		1938
1940	return NULL;	1939	return NULL;
1941	}	1940	}
1942		1941
1943	/*	1942	/*
1944	* activate recursively a flag on an object inventory	1943	* activate recursively a flag on an object inventory
1945	*/	1944	*/
		1945	void
1946	void flag_inv(object*op, int flag){	1946	flag_inv (object *op, int flag)
1947	object *tmp;	1947	{
1948	if(op->inv)	1948	if (op->inv)
1949	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1949	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1950	{
1950	SET_FLAG(tmp, flag);	1951	SET_FLAG (tmp, flag);
1951	flag_inv(tmp,flag);	1952	flag_inv (tmp, flag);
1952	}	1953	}
		1954	}
		1955
1953	}/*	1956	/*
1954	* desactivate recursively a flag on an object inventory	1957	* deactivate recursively a flag on an object inventory
1955	*/	1958	*/
		1959	void
1956	void unflag_inv(object*op, int flag){	1960	unflag_inv (object *op, int flag)
1957	object *tmp;	1961	{
1958	if(op->inv)	1962	if (op->inv)
1959	for(tmp = op->inv; tmp != NULL; tmp = tmp->below){	1963	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
		1964	{
1960	CLEAR_FLAG(tmp, flag);	1965	CLEAR_FLAG (tmp, flag);
1961	unflag_inv(tmp,flag);	1966	unflag_inv (tmp, flag);
1962	}	1967	}
1963	}	1968	}
1964		1969
1965	/*	1970	/*
1966	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1971	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
1967	* all it's inventory (recursively).	1972	* all it's inventory (recursively).
1968	* If checksums are used, a player will get set_cheat called for	1973	* If checksums are used, a player will get set_cheat called for
1969	* him/her-self and all object carried by a call to this function.	1974	* him/her-self and all object carried by a call to this function.
1970	*/	1975	*/
1971		1976	void
1972	void set_cheat(object *op) {	1977	set_cheat (object *op)
		1978	{
1973	SET_FLAG(op, FLAG_WAS_WIZ);	1979	SET_FLAG (op, FLAG_WAS_WIZ);
1974	flag_inv(op, FLAG_WAS_WIZ);	1980	flag_inv (op, FLAG_WAS_WIZ);
1975	}	1981	}
1976		1982
1977	/*	1983	/*
1978	* find_free_spot(object, map, x, y, start, stop) will search for	1984	* find_free_spot(object, map, x, y, start, stop) will search for
1979	* a spot at the given map and coordinates which will be able to contain	1985	* a spot at the given map and coordinates which will be able to contain
…		…
1993	* because arch_blocked (now ob_blocked) needs to know the movement type	1999	* because arch_blocked (now ob_blocked) needs to know the movement type
1994	* to know if the space in question will block the object. We can't use	2000	* to know if the space in question will block the object. We can't use
1995	* the archetype because that isn't correct if the monster has been	2001	* the archetype because that isn't correct if the monster has been
1996	* customized, changed states, etc.	2002	* customized, changed states, etc.
1997	*/	2003	*/
1998		2004	int
1999	int find_free_spot(const object *ob, mapstruct *m,int x,int y,int start,int stop) {	2005	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
		2006	{
2000	int i,index=0, flag;	2007	int index = 0, flag;
2001	static int altern[SIZEOFFREE];	2008	int altern[SIZEOFFREE];
2002		2009
2003	for(i=start;i<stop;i++) {	2010	for (int i = start; i < stop; i++)
		2011	{
2004	flag = ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]);	2012	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2005	if(!flag)	2013	if (!flag)
2006	altern[index++]=i;	2014	altern [index++] = i;
2007		2015
2008	/* Basically, if we find a wall on a space, we cut down the search size.	2016	/* Basically, if we find a wall on a space, we cut down the search size.
2009	* In this way, we won't return spaces that are on another side of a wall.	2017	* In this way, we won't return spaces that are on another side of a wall.
2010	* This mostly work, but it cuts down the search size in all directions -	2018	* This mostly work, but it cuts down the search size in all directions -
2011	* if the space being examined only has a wall to the north and empty	2019	* if the space being examined only has a wall to the north and empty
2012	* spaces in all the other directions, this will reduce the search space	2020	* spaces in all the other directions, this will reduce the search space
2013	* to only the spaces immediately surrounding the target area, and	2021	* to only the spaces immediately surrounding the target area, and
2014	* won't look 2 spaces south of the target space.	2022	* won't look 2 spaces south of the target space.
2015	*/	2023	*/
2016	else if ((flag & AB_NO_PASS) && maxfree[i]<stop)	2024	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2017	stop=maxfree[i];	2025	stop = maxfree[i];
2018	}	2026	}
2019	if(!index) return -1;	2027
		2028	if (!index)
		2029	return -1;
		2030
2020	return altern[RANDOM()%index];	2031	return altern[RANDOM () % index];
2021	}	2032	}
2022		2033
2023	/*	2034	/*
2024	* find_first_free_spot(archetype, mapstruct, x, y) works like	2035	* find_first_free_spot(archetype, maptile, x, y) works like
2025	* find_free_spot(), but it will search max number of squares.	2036	* find_free_spot(), but it will search max number of squares.
2026	* But it will return the first available spot, not a random choice.	2037	* But it will return the first available spot, not a random choice.
2027	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2038	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2028	*/	2039	*/
2029		2040	int
2030	int find_first_free_spot(const object *ob, mapstruct *m,int x,int y) {	2041	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2031	int i;	2042	{
2032	for(i=0;i<SIZEOFFREE;i++) {	2043	for (int i = 0; i < SIZEOFFREE; i++)
2033	if(!ob_blocked(ob,m,x+freearr_x[i],y+freearr_y[i]))	2044	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2034	return i;	2045	return i;
2035	}	2046
2036	return -1;	2047	return -1;
2037	}	2048	}
2038		2049
2039	/*	2050	/*
2040	* The function permute(arr, begin, end) randomly reorders the array	2051	* The function permute(arr, begin, end) randomly reorders the array
2041	* arr[begin..end-1].	2052	* arr[begin..end-1].
		2053	* now uses a fisher-yates shuffle, old permute was broken
2042	*/	2054	*/
		2055	static void
2043	static void permute(int *arr, int begin, int end)	2056	permute (int *arr, int begin, int end)
2044	{	2057	{
2045	int i, j, tmp, len;	2058	arr += begin;
		2059	end -= begin;
2046		2060
2047	len = end-begin;	2061	while (--end)
2048	for(i = begin; i < end; i++)	2062	swap (arr [end], arr [RANDOM () % (end + 1)]);
2049	{
2050	j = begin+RANDOM()%len;
2051
2052	tmp = arr[i];
2053	arr[i] = arr[j];
2054	arr[j] = tmp;
2055	}
2056	}	2063	}
2057		2064
2058	/* new function to make monster searching more efficient, and effective!	2065	/* new function to make monster searching more efficient, and effective!
2059	* This basically returns a randomized array (in the passed pointer) of	2066	* This basically returns a randomized array (in the passed pointer) of
2060	* the spaces to find monsters. In this way, it won't always look for	2067	* the spaces to find monsters. In this way, it won't always look for
2061	* monsters to the north first. However, the size of the array passed	2068	* monsters to the north first. However, the size of the array passed
2062	* covers all the spaces, so within that size, all the spaces within	2069	* covers all the spaces, so within that size, all the spaces within
2063	* the 3x3 area will be searched, just not in a predictable order.	2070	* the 3x3 area will be searched, just not in a predictable order.
2064	*/	2071	*/
		2072	void
2065	void get_search_arr(int *search_arr)	2073	get_search_arr (int *search_arr)
2066	{	2074	{
2067	int i;	2075	int i;
2068		2076
2069	for(i = 0; i < SIZEOFFREE; i++)	2077	for (i = 0; i < SIZEOFFREE; i++)
2070	{
2071	search_arr[i] = i;	2078	search_arr[i] = i;
2072	}
2073		2079
2074	permute(search_arr, 1, SIZEOFFREE1+1);	2080	permute (search_arr, 1, SIZEOFFREE1 + 1);
2075	permute(search_arr, SIZEOFFREE1+1, SIZEOFFREE2+1);	2081	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2076	permute(search_arr, SIZEOFFREE2+1, SIZEOFFREE);	2082	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2077	}	2083	}
2078		2084
2079	/*	2085	/*
2080	* find_dir(map, x, y, exclude) will search some close squares in the	2086	* find_dir(map, x, y, exclude) will search some close squares in the
2081	* given map at the given coordinates for live objects.	2087	* given map at the given coordinates for live objects.
…		…
2086	* Perhaps incorrectly, but I'm making the assumption that exclude	2092	* Perhaps incorrectly, but I'm making the assumption that exclude
2087	* is actually want is going to try and move there. We need this info	2093	* is actually want is going to try and move there. We need this info
2088	* because we have to know what movement the thing looking to move	2094	* because we have to know what movement the thing looking to move
2089	* there is capable of.	2095	* there is capable of.
2090	*/	2096	*/
2091		2097	int
2092	int find_dir(mapstruct *m, int x, int y, object *exclude) {	2098	find_dir (maptile *m, int x, int y, object *exclude)
		2099	{
2093	int i,max=SIZEOFFREE, mflags;	2100	int i, max = SIZEOFFREE, mflags;
		2101
2094	sint16 nx, ny;	2102	sint16 nx, ny;
2095	object *tmp;	2103	object *tmp;
2096	mapstruct *mp;	2104	maptile *mp;
		2105
2097	MoveType blocked, move_type;	2106	MoveType blocked, move_type;
2098		2107
2099	if (exclude && exclude->head) {	2108	if (exclude && exclude->head)
		2109	{
2100	exclude = exclude->head;	2110	exclude = exclude->head;
2101	move_type = exclude->move_type;	2111	move_type = exclude->move_type;
2102	} else {	2112	}
		2113	else
		2114	{
2103	/* If we don't have anything, presume it can use all movement types. */	2115	/* If we don't have anything, presume it can use all movement types. */
2104	move_type=MOVE_ALL;	2116	move_type = MOVE_ALL;
		2117	}
		2118
		2119	for (i = 1; i < max; i++)
2105	}	2120	{
2106
2107	for(i=1;i<max;i++) {
2108	mp = m;	2121	mp = m;
2109	nx = x + freearr_x[i];	2122	nx = x + freearr_x[i];
2110	ny = y + freearr_y[i];	2123	ny = y + freearr_y[i];
2111		2124
2112	mflags = get_map_flags(m, &mp, nx, ny, &nx, &ny);	2125	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2126
2113	if (mflags & P_OUT_OF_MAP) {	2127	if (mflags & P_OUT_OF_MAP)
		2128	max = maxfree[i];
		2129	else
		2130	{
		2131	mapspace &ms = mp->at (nx, ny);
		2132
		2133	blocked = ms.move_block;
		2134
		2135	if ((move_type & blocked) == move_type)
2114	max = maxfree[i];	2136	max = maxfree[i];
2115	} else {
2116	blocked = GET_MAP_MOVE_BLOCK(mp, nx, ny);
2117
2118	if ((move_type & blocked) == move_type) {
2119	max=maxfree[i];
2120	} else if (mflags & P_IS_ALIVE) {	2137	else if (mflags & P_IS_ALIVE)
2121	for (tmp=GET_MAP_OB(mp,nx,ny); tmp!= NULL; tmp=tmp->above) {	2138	{
		2139	for (tmp = ms.bot; tmp; tmp = tmp->above)
2122	if ((QUERY_FLAG(tmp,FLAG_MONSTER) || tmp->type==PLAYER) &&	2140	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2123	(tmp != exclude ||(tmp->head && tmp->head != exclude))) {	2141	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2124	break;	2142	break;
2125	}	2143
2126	}
2127	if(tmp) {	2144	if (tmp)
2128	return freedir[i];	2145	return freedir[i];
2129	}
2130	}	2146	}
2131	}	2147	}
2132	}	2148	}
		2149
2133	return 0;	2150	return 0;
2134	}	2151	}
2135		2152
2136	/*	2153	/*
2137	* distance(object 1, object 2) will return the square of the	2154	* distance(object 1, object 2) will return the square of the
2138	* distance between the two given objects.	2155	* distance between the two given objects.
2139	*/	2156	*/
2140		2157	int
2141	int distance(const object *ob1, const object *ob2) {	2158	distance (const object *ob1, const object *ob2)
2142	int i;	2159	{
2143	i= (ob1->x - ob2->x)*(ob1->x - ob2->x)+	2160	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2144	(ob1->y - ob2->y)*(ob1->y - ob2->y);
2145	return i;
2146	}	2161	}
2147		2162
2148	/*	2163	/*
2149	* find_dir_2(delta-x,delta-y) will return a direction in which	2164	* find_dir_2(delta-x,delta-y) will return a direction in which
2150	* an object which has subtracted the x and y coordinates of another	2165	* an object which has subtracted the x and y coordinates of another
2151	* object, needs to travel toward it.	2166	* object, needs to travel toward it.
2152	*/	2167	*/
2153		2168	int
2154	int find_dir_2(int x, int y) {	2169	find_dir_2 (int x, int y)
		2170	{
2155	int q;	2171	int q;
2156		2172
2157	if(y)	2173	if (y)
2158	q=x*100/y;	2174	q = x * 100 / y;
2159	else if (x)	2175	else if (x)
2160	q= -300*x;	2176	q = -300 * x;
2161	else	2177	else
2162	return 0;	2178	return 0;
2163		2179
2164	if(y>0) {	2180	if (y > 0)
		2181	{
2165	if(q < -242)	2182	if (q < -242)
2166	return 3 ;	2183	return 3;
2167	if (q < -41)	2184	if (q < -41)
2168	return 2 ;	2185	return 2;
2169	if (q < 41)	2186	if (q < 41)
2170	return 1 ;	2187	return 1;
2171	if (q < 242)	2188	if (q < 242)
2172	return 8 ;	2189	return 8;
2173	return 7 ;	2190	return 7;
2174	}	2191	}
2175		2192
2176	if (q < -242)	2193	if (q < -242)
2177	return 7 ;	2194	return 7;
2178	if (q < -41)	2195	if (q < -41)
2179	return 6 ;	2196	return 6;
2180	if (q < 41)	2197	if (q < 41)
2181	return 5 ;	2198	return 5;
2182	if (q < 242)	2199	if (q < 242)
2183	return 4 ;	2200	return 4;
2184		2201
2185	return 3 ;	2202	return 3;
2186	}	2203	}
2187		2204
2188	/*	2205	/*
2189	* absdir(int): Returns a number between 1 and 8, which represent	2206	* absdir(int): Returns a number between 1 and 8, which represent
2190	* the "absolute" direction of a number (it actually takes care of	2207	* the "absolute" direction of a number (it actually takes care of
2191	* "overflow" in previous calculations of a direction).	2208	* "overflow" in previous calculations of a direction).
2192	*/	2209	*/
2193		2210
		2211	int
2194	int absdir(int d) {	2212	absdir (int d)
2195	while(d<1) d+=8;	2213	{
2196	while(d>8) d-=8;	2214	while (d < 1)
		2215	d += 8;
		2216
		2217	while (d > 8)
		2218	d -= 8;
		2219
2197	return d;	2220	return d;
2198	}	2221	}
2199		2222
2200	/*	2223	/*
2201	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2224	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
2202	* between two directions (which are expected to be absolute (see absdir())	2225	* between two directions (which are expected to be absolute (see absdir())
2203	*/	2226	*/
2204		2227
		2228	int
2205	int dirdiff(int dir1, int dir2) {	2229	dirdiff (int dir1, int dir2)
		2230	{
2206	int d;	2231	int d;
		2232
2207	d = abs(dir1 - dir2);	2233	d = abs (dir1 - dir2);
2208	if(d>4)	2234	if (d > 4)
2209	d = 8 - d;	2235	d = 8 - d;
		2236
2210	return d;	2237	return d;
2211	}	2238	}
2212		2239
2213	/* peterm:	2240	/* peterm:
2214	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2241	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2217	* This basically means that if direction is 15, then it could either go	2244	* This basically means that if direction is 15, then it could either go
2218	* direction 4, 14, or 16 to get back to where we are.	2245	* direction 4, 14, or 16 to get back to where we are.
2219	* Moved from spell_util.c to object.c with the other related direction	2246	* Moved from spell_util.c to object.c with the other related direction
2220	* functions.	2247	* functions.
2221	*/	2248	*/
2222
2223	int reduction_dir[SIZEOFFREE][3] = {	2249	int reduction_dir[SIZEOFFREE][3] = {
2224	{0,0,0}, /* 0 */	2250	{0, 0, 0}, /* 0 */
2225	{0,0,0}, /* 1 */	2251	{0, 0, 0}, /* 1 */
2226	{0,0,0}, /* 2 */	2252	{0, 0, 0}, /* 2 */
2227	{0,0,0}, /* 3 */	2253	{0, 0, 0}, /* 3 */
2228	{0,0,0}, /* 4 */	2254	{0, 0, 0}, /* 4 */
2229	{0,0,0}, /* 5 */	2255	{0, 0, 0}, /* 5 */
2230	{0,0,0}, /* 6 */	2256	{0, 0, 0}, /* 6 */
2231	{0,0,0}, /* 7 */	2257	{0, 0, 0}, /* 7 */
2232	{0,0,0}, /* 8 */	2258	{0, 0, 0}, /* 8 */
2233	{8,1,2}, /* 9 */	2259	{8, 1, 2}, /* 9 */
2234	{1,2,-1}, /* 10 */	2260	{1, 2, -1}, /* 10 */
2235	{2,10,12}, /* 11 */	2261	{2, 10, 12}, /* 11 */
2236	{2,3,-1}, /* 12 */	2262	{2, 3, -1}, /* 12 */
2237	{2,3,4}, /* 13 */	2263	{2, 3, 4}, /* 13 */
2238	{3,4,-1}, /* 14 */	2264	{3, 4, -1}, /* 14 */
2239	{4,14,16}, /* 15 */	2265	{4, 14, 16}, /* 15 */
2240	{5,4,-1}, /* 16 */	2266	{5, 4, -1}, /* 16 */
2241	{4,5,6}, /* 17 */	2267	{4, 5, 6}, /* 17 */
2242	{6,5,-1}, /* 18 */	2268	{6, 5, -1}, /* 18 */
2243	{6,20,18}, /* 19 */	2269	{6, 20, 18}, /* 19 */
2244	{7,6,-1}, /* 20 */	2270	{7, 6, -1}, /* 20 */
2245	{6,7,8}, /* 21 */	2271	{6, 7, 8}, /* 21 */
2246	{7,8,-1}, /* 22 */	2272	{7, 8, -1}, /* 22 */
2247	{8,22,24}, /* 23 */	2273	{8, 22, 24}, /* 23 */
2248	{8,1,-1}, /* 24 */	2274	{8, 1, -1}, /* 24 */
2249	{24,9,10}, /* 25 */	2275	{24, 9, 10}, /* 25 */
2250	{9,10,-1}, /* 26 */	2276	{9, 10, -1}, /* 26 */
2251	{10,11,-1}, /* 27 */	2277	{10, 11, -1}, /* 27 */
2252	{27,11,29}, /* 28 */	2278	{27, 11, 29}, /* 28 */
2253	{11,12,-1}, /* 29 */	2279	{11, 12, -1}, /* 29 */
2254	{12,13,-1}, /* 30 */	2280	{12, 13, -1}, /* 30 */
2255	{12,13,14}, /* 31 */	2281	{12, 13, 14}, /* 31 */
2256	{13,14,-1}, /* 32 */	2282	{13, 14, -1}, /* 32 */
2257	{14,15,-1}, /* 33 */	2283	{14, 15, -1}, /* 33 */
2258	{33,15,35}, /* 34 */	2284	{33, 15, 35}, /* 34 */
2259	{16,15,-1}, /* 35 */	2285	{16, 15, -1}, /* 35 */
2260	{17,16,-1}, /* 36 */	2286	{17, 16, -1}, /* 36 */
2261	{18,17,16}, /* 37 */	2287	{18, 17, 16}, /* 37 */
2262	{18,17,-1}, /* 38 */	2288	{18, 17, -1}, /* 38 */
2263	{18,19,-1}, /* 39 */	2289	{18, 19, -1}, /* 39 */
2264	{41,19,39}, /* 40 */	2290	{41, 19, 39}, /* 40 */
2265	{19,20,-1}, /* 41 */	2291	{19, 20, -1}, /* 41 */
2266	{20,21,-1}, /* 42 */	2292	{20, 21, -1}, /* 42 */
2267	{20,21,22}, /* 43 */	2293	{20, 21, 22}, /* 43 */
2268	{21,22,-1}, /* 44 */	2294	{21, 22, -1}, /* 44 */
2269	{23,22,-1}, /* 45 */	2295	{23, 22, -1}, /* 45 */
2270	{45,47,23}, /* 46 */	2296	{45, 47, 23}, /* 46 */
2271	{23,24,-1}, /* 47 */	2297	{23, 24, -1}, /* 47 */
2272	{24,9,-1}}; /* 48 */	2298	{24, 9, -1}
		2299	}; /* 48 */
2273		2300
2274	/* Recursive routine to step back and see if we can	2301	/* Recursive routine to step back and see if we can
2275	* find a path to that monster that we found. If not,	2302	* find a path to that monster that we found. If not,
2276	* we don't bother going toward it. Returns 1 if we	2303	* we don't bother going toward it. Returns 1 if we
2277	* can see a direct way to get it	2304	* can see a direct way to get it
2278	* Modified to be map tile aware -.MSW	2305	* Modified to be map tile aware -.MSW
2279	*/	2306	*/
2280		2307	int
2281
2282	int can_see_monsterP(mapstruct *m, int x, int y,int dir) {	2308	can_see_monsterP (maptile *m, int x, int y, int dir)
		2309	{
2283	sint16 dx, dy;	2310	sint16 dx, dy;
2284	int mflags;	2311	int mflags;
2285		2312
		2313	if (dir < 0)
2286	if(dir<0) return 0; /* exit condition: invalid direction */	2314	return 0; /* exit condition: invalid direction */
2287		2315
2288	dx = x + freearr_x[dir];	2316	dx = x + freearr_x[dir];
2289	dy = y + freearr_y[dir];	2317	dy = y + freearr_y[dir];
2290		2318
2291	mflags = get_map_flags(m, &m, dx, dy, &dx, &dy);	2319	mflags = get_map_flags (m, &m, dx, dy, &dx, &dy);
2292		2320
2293	/* This functional arguably was incorrect before - it was	2321	/* This functional arguably was incorrect before - it was
2294	* checking for P_WALL - that was basically seeing if	2322	* checking for P_WALL - that was basically seeing if
2295	* we could move to the monster - this is being more	2323	* we could move to the monster - this is being more
2296	* literal on if we can see it. To know if we can actually	2324	* literal on if we can see it. To know if we can actually
2297	* move to the monster, we'd need the monster passed in or	2325	* move to the monster, we'd need the monster passed in or
2298	* at least its move type.	2326	* at least its move type.
2299	*/	2327	*/
2300	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW)) return 0;	2328	if (mflags & (P_OUT_OF_MAP | P_BLOCKSVIEW))
		2329	return 0;
2301		2330
2302	/* yes, can see. */	2331	/* yes, can see. */
2303	if(dir < 9) return 1;	2332	if (dir < 9)
		2333	return 1;
		2334
2304	return can_see_monsterP(m, x, y, reduction_dir[dir][0]) |	2335	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2305	can_see_monsterP(m,x,y, reduction_dir[dir][1]) |	2336	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
2306	can_see_monsterP(m,x,y, reduction_dir[dir][2]);	2337	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2307	}	2338	}
2308		2339
2309
2310
2311	/*	2340	/*
2312	* can_pick(picker, item): finds out if an object is possible to be	2341	* can_pick(picker, item): finds out if an object is possible to be
2313	* picked up by the picker. Returnes 1 if it can be	2342	* picked up by the picker. Returnes 1 if it can be
2314	* picked up, otherwise 0.	2343	* picked up, otherwise 0.
2315	*	2344	*
…		…
2317	* core dumps if they do.	2346	* core dumps if they do.
2318	*	2347	*
2319	* Add a check so we can't pick up invisible objects (0.93.8)	2348	* Add a check so we can't pick up invisible objects (0.93.8)
2320	*/	2349	*/
2321		2350
		2351	int
2322	int can_pick(const object *who, const object *item) {	2352	can_pick (const object *who, const object *item)
		2353	{
2323	return /*QUERY_FLAG(who,FLAG_WIZ)||*/	2354	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2324	(item->weight>0&&!QUERY_FLAG(item,FLAG_NO_PICK)&&	2355	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2325	!QUERY_FLAG(item,FLAG_ALIVE)&&!item->invisible &&	2356	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2326	(who->type==PLAYER||item->weight<who->weight/3));
2327	}	2357	}
2328
2329		2358
2330	/*	2359	/*
2331	* create clone from object to another	2360	* create clone from object to another
2332	*/	2361	*/
		2362	object *
2333	object *object_create_clone (object *asrc) {	2363	object_create_clone (object *asrc)
		2364	{
2334	object *dst = NULL,*tmp,*src,*part,*prev, *item;	2365	object *dst = 0, *tmp, *src, *part, *prev, *item;
2335		2366
2336	if(!asrc) return NULL;	2367	if (!asrc)
		2368	return 0;
		2369
2337	src = asrc;	2370	src = asrc;
2338	if(src->head)	2371	if (src->head)
2339	src = src->head;	2372	src = src->head;
2340		2373
2341	prev = NULL;	2374	prev = 0;
2342	for(part = src; part; part = part->more) {	2375	for (part = src; part; part = part->more)
2343	tmp = get_object();	2376	{
2344	copy_object(part,tmp);	2377	tmp = part->clone ();
2345	tmp->x -= src->x;	2378	tmp->x -= src->x;
2346	tmp->y -= src->y;	2379	tmp->y -= src->y;
		2380
2347	if(!part->head) {	2381	if (!part->head)
		2382	{
2348	dst = tmp;	2383	dst = tmp;
2349	tmp->head = NULL;
2350	} else {
2351	tmp->head = dst;	2384	tmp->head = 0;
2352	}	2385	}
		2386	else
		2387	tmp->head = dst;
		2388
2353	tmp->more = NULL;	2389	tmp->more = 0;
		2390
2354	if(prev)	2391	if (prev)
2355	prev->more = tmp;	2392	prev->more = tmp;
		2393
2356	prev = tmp;	2394	prev = tmp;
2357	}	2395	}
2358	/*** copy inventory ***/	2396
2359	for(item = src->inv; item; item = item->below) {	2397	for (item = src->inv; item; item = item->below)
2360	(void) insert_ob_in_ob(object_create_clone(item),dst);	2398	insert_ob_in_ob (object_create_clone (item), dst);
2361	}
2362		2399
2363	return dst;	2400	return dst;
2364	}
2365
2366	/* return true if the object was destroyed, 0 otherwise */
2367	int was_destroyed (const object *op, tag_t old_tag)
2368	{
2369	/* checking for FLAG_FREED isn't necessary, but makes this function more
2370	* robust */
2371	return op->count != old_tag || QUERY_FLAG (op, FLAG_FREED);
2372	}	2401	}
2373		2402
2374	/* GROS - Creates an object using a string representing its content. */	2403	/* GROS - Creates an object using a string representing its content. */
2375	/* Basically, we save the content of the string to a temp file, then call */	2404	/* Basically, we save the content of the string to a temp file, then call */
2376	/* load_object on it. I admit it is a highly inefficient way to make things, */	2405	/* load_object on it. I admit it is a highly inefficient way to make things, */
2377	/* but it was simple to make and allows reusing the load_object function. */	2406	/* but it was simple to make and allows reusing the load_object function. */
2378	/* Remember not to use load_object_str in a time-critical situation. */	2407	/* Remember not to use load_object_str in a time-critical situation. */
2379	/* Also remember that multiparts objects are not supported for now. */	2408	/* Also remember that multiparts objects are not supported for now. */
2380		2409	object *
2381	object* load_object_str(const char *obstr)	2410	load_object_str (const char *obstr)
2382	{	2411	{
2383	object *op;	2412	object *op;
2384	char filename[MAX_BUF];	2413	char filename[MAX_BUF];
		2414
2385	sprintf(filename,"%s/cfloadobstr2044",settings.tmpdir);	2415	sprintf (filename, "%s/cfloadobstr2044", settings.tmpdir);
2386		2416
2387	FILE *tempfile=fopen(filename,"w");	2417	FILE *tempfile = fopen (filename, "w");
		2418
2388	if (tempfile == NULL)	2419	if (tempfile == NULL)
2389	{	2420	{
2390	LOG(llevError,"Error - Unable to access load object temp file\n");	2421	LOG (llevError, "Error - Unable to access load object temp file\n");
2391	return NULL;	2422	return NULL;
2392	};	2423	}
		2424
2393	fprintf(tempfile,obstr);	2425	fprintf (tempfile, obstr);
2394	fclose(tempfile);	2426	fclose (tempfile);
2395		2427
2396	op=get_object();	2428	op = object::create ();
2397		2429
2398	object_thawer thawer (filename);	2430	object_thawer thawer (filename);
2399		2431
2400	if (thawer)	2432	if (thawer)
2401	load_object(thawer,op,0);	2433	load_object (thawer, op, 0);
2402		2434
2403	LOG(llevDebug," load str completed, object=%s\n", &op->name);	2435	LOG (llevDebug, " load str completed, object=%s\n", &op->name);
2404	CLEAR_FLAG(op,FLAG_REMOVED);	2436	CLEAR_FLAG (op, FLAG_REMOVED);
2405		2437
2406	return op;	2438	return op;
2407	}	2439	}
2408		2440
2409	/* This returns the first object in who's inventory that	2441	/* This returns the first object in who's inventory that
2410	* has the same type and subtype match.	2442	* has the same type and subtype match.
2411	* returns NULL if no match.	2443	* returns NULL if no match.
2412	*/	2444	*/
		2445	object *
2413	object *find_obj_by_type_subtype(const object *who, int type, int subtype)	2446	find_obj_by_type_subtype (const object *who, int type, int subtype)
2414	{	2447	{
2415	object *tmp;
2416
2417	for (tmp=who->inv; tmp; tmp=tmp->below)	2448	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2418	if (tmp->type == type && tmp->subtype == subtype) return tmp;	2449	if (tmp->type == type && tmp->subtype == subtype)
		2450	return tmp;
2419		2451
2420	return NULL;	2452	return 0;
2421	}	2453	}
2422		2454
2423	/* If ob has a field named key, return the link from the list,	2455	/* If ob has a field named key, return the link from the list,
2424	* otherwise return NULL.	2456	* otherwise return NULL.
2425	*	2457	*
2426	* key must be a passed in shared string - otherwise, this won't	2458	* key must be a passed in shared string - otherwise, this won't
2427	* do the desired thing.	2459	* do the desired thing.
2428	*/	2460	*/
		2461	key_value *
2429	key_value * get_ob_key_link(const object * ob, const char * key) {	2462	get_ob_key_link (const object *ob, const char *key)
2430	key_value * link;	2463	{
2431
2432	for (link = ob->key_values; link != NULL; link = link->next) {	2464	for (key_value *link = ob->key_values; link; link = link->next)
2433	if (link->key == key) {	2465	if (link->key == key)
2434	return link;	2466	return link;
2435	}	2467
2436	}	2468	return 0;
2437		2469	}
2438	return NULL;
2439	}
2440		2470
2441	/*	2471	/*
2442	* Returns the value of op has an extra_field for key, or NULL.	2472	* Returns the value of op has an extra_field for key, or NULL.
2443	*	2473	*
2444	* The argument doesn't need to be a shared string.	2474	* The argument doesn't need to be a shared string.
2445	*	2475	*
2446	* The returned string is shared.	2476	* The returned string is shared.
2447	*/	2477	*/
		2478	const char *
2448	const char * get_ob_key_value(const object * op, const char * const key) {	2479	get_ob_key_value (const object *op, const char *const key)
		2480	{
2449	key_value * link;	2481	key_value *link;
2450	const char * canonical_key;	2482	shstr_cmp canonical_key (key);
		2483
		2484	if (!canonical_key)
2451		2485	{
2452	canonical_key = shstr::find (key);
2453
2454	if (canonical_key == NULL) {
2455	/* 1. There being a field named key on any object	2486	/* 1. There being a field named key on any object
2456	* implies there'd be a shared string to find.	2487	* implies there'd be a shared string to find.
2457	* 2. Since there isn't, no object has this field.	2488	* 2. Since there isn't, no object has this field.
2458	* 3. Therefore, *this* object doesn't have this field.	2489	* 3. Therefore, *this* object doesn't have this field.
2459	*/	2490	*/
2460	return NULL;	2491	return 0;
2461	}	2492	}
2462		2493
2463	/* This is copied from get_ob_key_link() above -	2494	/* This is copied from get_ob_key_link() above -
2464	* only 4 lines, and saves the function call overhead.	2495	* only 4 lines, and saves the function call overhead.
2465	*/	2496	*/
2466	for (link = op->key_values; link != NULL; link = link->next) {	2497	for (link = op->key_values; link; link = link->next)
2467	if (link->key == canonical_key) {	2498	if (link->key == canonical_key)
2468	return link->value;	2499	return link->value;
2469	}	2500
2470	}	2501	return 0;
2471	return NULL;
2472	}	2502	}
2473		2503
2474		2504
2475	/*	2505	/*
2476	* Updates the canonical_key in op to value.	2506	* Updates the canonical_key in op to value.
…		…
2480	* Unless add_key is TRUE, it won't add fields, only change the value of existing	2510	* Unless add_key is TRUE, it won't add fields, only change the value of existing
2481	* keys.	2511	* keys.
2482	*	2512	*
2483	* Returns TRUE on success.	2513	* Returns TRUE on success.
2484	*/	2514	*/
		2515	int
2485	int set_ob_key_value_s(object * op, const shstr &canonical_key, const char * value, int add_key) {	2516	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
		2517	{
2486	key_value * field = NULL, *last=NULL;	2518	key_value *field = NULL, *last = NULL;
2487		2519
2488	for (field=op->key_values; field != NULL; field=field->next) {	2520	for (field = op->key_values; field != NULL; field = field->next)
		2521	{
2489	if (field->key != canonical_key) {	2522	if (field->key != canonical_key)
		2523	{
2490	last = field;	2524	last = field;
2491	continue;	2525	continue;
2492	}	2526	}
2493		2527
2494	if (value)	2528	if (value)
2495	field->value = value;	2529	field->value = value;
2496	else {	2530	else
		2531	{
2497	/* Basically, if the archetype has this key set,	2532	/* Basically, if the archetype has this key set,
2498	* we need to store the null value so when we save	2533	* we need to store the null value so when we save
2499	* it, we save the empty value so that when we load,	2534	* it, we save the empty value so that when we load,
2500	* we get this value back again.	2535	* we get this value back again.
2501	*/	2536	*/
2502	if (get_ob_key_link (&op->arch->clone, canonical_key))	2537	if (get_ob_key_link (&op->arch->clone, canonical_key))
2503	field->value = 0;	2538	field->value = 0;
		2539	else
		2540	{
		2541	if (last)
		2542	last->next = field->next;
2504	else	2543	else
2505	{
2506	if (last) last->next = field->next;
2507	else op->key_values = field->next;	2544	op->key_values = field->next;
2508		2545
2509	delete field;	2546	delete field;
2510	}	2547	}
2511	}	2548	}
2512	return TRUE;	2549	return TRUE;
2513	}	2550	}
2514	/* IF we get here, key doesn't exist */	2551	/* IF we get here, key doesn't exist */
2515		2552
2516	/* No field, we'll have to add it. */	2553	/* No field, we'll have to add it. */
2517		2554
2518	if (!add_key) {	2555	if (!add_key)
2519	return FALSE;	2556	return FALSE;
2520	}	2557
2521	/* There isn't any good reason to store a null	2558	/* There isn't any good reason to store a null
2522	* value in the key/value list. If the archetype has	2559	* value in the key/value list. If the archetype has
2523	* this key, then we should also have it, so shouldn't	2560	* this key, then we should also have it, so shouldn't
2524	* be here. If user wants to store empty strings,	2561	* be here. If user wants to store empty strings,
2525	* should pass in ""	2562	* should pass in ""
2526	*/	2563	*/
2527	if (value == NULL) return TRUE;	2564	if (value == NULL)
2528
2529	field = new key_value;
2530
2531	field->key = canonical_key;
2532	field->value = value;
2533	/* Usual prepend-addition. */
2534	field->next = op->key_values;
2535	op->key_values = field;
2536
2537	return TRUE;	2565	return TRUE;
		2566
		2567	field = new key_value;
		2568
		2569	field->key = canonical_key;
		2570	field->value = value;
		2571	/* Usual prepend-addition. */
		2572	field->next = op->key_values;
		2573	op->key_values = field;
		2574
		2575	return TRUE;
2538	}	2576	}
2539		2577
2540	/*	2578	/*
2541	* Updates the key in op to value.	2579	* Updates the key in op to value.
2542	*	2580	*
…		…
2544	* and not add new ones.	2582	* and not add new ones.
2545	* In general, should be little reason FALSE is ever passed in for add_key	2583	* In general, should be little reason FALSE is ever passed in for add_key
2546	*	2584	*
2547	* Returns TRUE on success.	2585	* Returns TRUE on success.
2548	*/	2586	*/
		2587	int
2549	int set_ob_key_value(object * op, const char *key, const char * value, int add_key)	2588	set_ob_key_value (object *op, const char *key, const char *value, int add_key)
2550	{	2589	{
2551	shstr key_ (key);	2590	shstr key_ (key);
		2591
2552	return set_ob_key_value_s (op, key_, value, add_key);	2592	return set_ob_key_value_s (op, key_, value, add_key);
2553	}	2593	}
		2594
		2595	object::depth_iterator::depth_iterator (object *container)
		2596	: iterator_base (container)
		2597	{
		2598	while (item->inv)
		2599	item = item->inv;
		2600	}
		2601
		2602	void
		2603	object::depth_iterator::next ()
		2604	{
		2605	if (item->below)
		2606	{
		2607	item = item->below;
		2608
		2609	while (item->inv)
		2610	item = item->inv;
		2611	}
		2612	else
		2613	item = item->env;
		2614	}
		2615
		2616	// return a suitable string describing an objetc in enough detail to find it
		2617	const char *
		2618	object::debug_desc (char *info) const
		2619	{
		2620	char info2[256 * 3];
		2621	char *p = info;
		2622
		2623	p += snprintf (p, 256, "%d=\"%s%s%s\"",
		2624	count,
		2625	&name,
		2626	title ? " " : "",
		2627	title ? (const char *)title : "");
		2628
		2629	if (env)
		2630	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
		2631
		2632	if (map)
		2633	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);
		2634
		2635	return info;
		2636	}
		2637
		2638	const char *
		2639	object::debug_desc () const
		2640	{
		2641	static char info[256 * 3];
		2642	return debug_desc (info);
		2643	}
		2644

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