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/cvs/deliantra/server/common/object.C

Comparing deliantra/server/common/object.C (file contents):
Revision 1.62 by root, Mon Dec 11 23:35:37 2006 UTC vs.
Revision 1.90 by root, Tue Dec 26 10:14:24 2006 UTC

…		…
29	#include <sys/types.h>	29	#include <sys/types.h>
30	#include <sys/uio.h>	30	#include <sys/uio.h>
31	#include <object.h>	31	#include <object.h>
32	#include <funcpoint.h>	32	#include <funcpoint.h>
33	#include <loader.h>	33	#include <loader.h>
		34
		35	#include <bitset>
34		36
35	int nrofallocobjects = 0;	37	int nrofallocobjects = 0;
36	static UUID uuid;	38	static UUID uuid;
37	const uint64 UUID_SKIP = 1<<19;	39	const uint64 UUID_SKIP = 1<<19;
38		40
…		…
139	* 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
140	* different structure or at least keep the lists sorted...	142	* different structure or at least keep the lists sorted...
141	*/	143	*/
142		144
143	/* For each field in wants, */	145	/* For each field in wants, */
144	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	146	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
145	{	147	{
146	key_value *has_field;	148	key_value *has_field;
147		149
148	/* Look for a field in has with the same key. */	150	/* Look for a field in has with the same key. */
149	has_field = get_ob_key_link (has, wants_field->key);	151	has_field = get_ob_key_link (has, wants_field->key);
…		…
183	*	185	*
184	* 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
185	* replaces - this is mostly for clarity - a decent compiler should hopefully	187	* replaces - this is mostly for clarity - a decent compiler should hopefully
186	* reduce this to the same efficiency.	188	* reduce this to the same efficiency.
187	*	189	*
188	* Check nrof variable *before* calling CAN_MERGE()	190	* Check nrof variable *before* calling can_merge()
189	*	191	*
190	* Improvements made with merge: Better checking on potion, and also	192	* Improvements made with merge: Better checking on potion, and also
191	* check weight	193	* check weight
192	*/	194	*/
193		195
194	bool object::can_merge (object *ob1, object *ob2)	196	bool object::can_merge_slow (object *ob1, object *ob2)
195	{	197	{
196	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
197	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)
198	return 0;	204	return 0;
199		205
200	if (ob1->speed != ob2->speed)	206	//TODO: this ain't working well, use nicer and correct overflow check
201	return 0;
202
203	/* 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
204	* 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
205	* used to store nrof).	209	* used to store nrof).
206	*/	210	*/
207	if (ob1->nrof + ob2->nrof >= 1UL << 31)	211	if (ob1->nrof + ob2->nrof >= 1UL << 31)
…		…
217	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
218		222
219	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
220	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
221		225
222		226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
223	/* the 0x400000 on flags2 is FLAG_INV_LOCK. I don't think something	227	|| ob1->arch != ob2->arch
224	* being locked in inventory should prevent merging.
225	* 0x4 in flags3 is CLIENT_SENT
226	*/
227	if ((ob1->arch != ob2->arch) ||
228	(ob1->flags[0] != ob2->flags[0]) ||
229	(ob1->flags[1] != ob2->flags[1]) ||
230	((ob1->flags[2] & ~0x400000) != (ob2->flags[2] & ~0x400000)) ||
231	((ob1->flags[3] & ~0x4) != (ob2->flags[3] & ~0x4)) ||
232	(ob1->name != ob2->name) ||	228	|| ob1->name != ob2->name
233	(ob1->title != ob2->title) ||	229	|| ob1->title != ob2->title
234	(ob1->msg != ob2->msg) ||	230	|| ob1->msg != ob2->msg
235	(ob1->weight != ob2->weight) ||	231	|| ob1->weight != ob2->weight
236	(memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist)) != 0) ||	232	|| memcmp (&ob1->resist, &ob2->resist, sizeof (ob1->resist))
237	(memcmp (&ob1->stats, &ob2->stats, sizeof (ob1->stats)) != 0) ||	233	|| memcmp (&ob1->stats , &ob2->stats , sizeof (ob1->stats) )
238	(ob1->attacktype != ob2->attacktype) ||	234	|| ob1->attacktype != ob2->attacktype
239	(ob1->magic != ob2->magic) ||	235	|| ob1->magic != ob2->magic
240	(ob1->slaying != ob2->slaying) ||	236	|| ob1->slaying != ob2->slaying
241	(ob1->skill != ob2->skill) ||	237	|| ob1->skill != ob2->skill
242	(ob1->value != ob2->value) ||	238	|| ob1->value != ob2->value
243	(ob1->animation_id != ob2->animation_id) ||	239	|| ob1->animation_id != ob2->animation_id
244	(ob1->client_type != ob2->client_type) ||	240	|| ob1->client_type != ob2->client_type
245	(ob1->materialname != ob2->materialname) ||	241	|| ob1->materialname != ob2->materialname
246	(ob1->lore != ob2->lore) ||	242	|| ob1->lore != ob2->lore
247	(ob1->subtype != ob2->subtype) ||	243	|| ob1->subtype != ob2->subtype
248	(ob1->move_type != ob2->move_type) ||	244	|| ob1->move_type != ob2->move_type
249	(ob1->move_block != ob2->move_block) ||	245	|| ob1->move_block != ob2->move_block
250	(ob1->move_allow != ob2->move_allow) ||	246	|| ob1->move_allow != ob2->move_allow
251	(ob1->move_on != ob2->move_on) ||	247	|| ob1->move_on != ob2->move_on
252	(ob1->move_off != ob2->move_off) || (ob1->move_slow != ob2->move_slow) || (ob1->move_slow_penalty != ob2->move_slow_penalty))	248	|| ob1->move_off != ob2->move_off
		249	|| ob1->move_slow != ob2->move_slow
		250	|| ob1->move_slow_penalty != ob2->move_slow_penalty)
253	return 0;	251	return 0;
254		252
255	/* This is really a spellbook check - really, we should	253	/* This is really a spellbook check - really, we should
256	* check all objects in the inventory.	254	* check all objects in the inventory.
257	*/	255	*/
…		…
260	/* 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 */
261	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))	259	if ((ob1->inv && !ob2->inv) || (ob2->inv && !ob1->inv))
262	return 0;	260	return 0;
263		261
264	/* Now check to see if the two inventory objects could merge */	262	/* Now check to see if the two inventory objects could merge */
265	if (!CAN_MERGE (ob1->inv, ob2->inv))	263	if (!object::can_merge (ob1->inv, ob2->inv))
266	return 0;	264	return 0;
267		265
268	/* 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
269	* if it is valid.	267	* if it is valid.
270	*/	268	*/
…		…
354	op = op->env;	352	op = op->env;
355	return op;	353	return op;
356	}	354	}
357		355
358	/*	356	/*
359	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
360	* a better check. We basically keeping traversing up until we can't
361	* or find a player.
362	*/
363
364	object *
365	is_player_inv (object *op)
366	{
367	for (; op != NULL && op->type != PLAYER; op = op->env)
368	if (op->env == op)
369	op->env = NULL;
370	return op;
371	}
372
373	/*
374	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
375	* Some error messages.	358	* Some error messages.
376	* 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.
377	*/	360	*/
378		361
…		…
381	{	364	{
382	if (!op)	365	if (!op)
383	return strdup ("[NULLOBJ]");	366	return strdup ("[NULLOBJ]");
384		367
385	object_freezer freezer;	368	object_freezer freezer;
386	save_object (freezer, op, 3);	369	save_object (freezer, op, 1);
387	return freezer.as_string ();	370	return freezer.as_string ();
388	}	371	}
389		372
390	/*	373	/*
391	* 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
…		…
484	}	467	}
485		468
486	op->key_values = 0;	469	op->key_values = 0;
487	}	470	}
488		471
489	void object::clear ()
490	{
491	attachable_base::clear ();
492
493	free_key_values (this);
494
495	owner = 0;
496	name = 0;
497	name_pl = 0;
498	title = 0;
499	race = 0;
500	slaying = 0;
501	skill = 0;
502	msg = 0;
503	lore = 0;
504	custom_name = 0;
505	materialname = 0;
506	contr = 0;
507	below = 0;
508	above = 0;
509	inv = 0;
510	container = 0;
511	env = 0;
512	more = 0;
513	head = 0;
514	map = 0;
515	active_next = 0;
516	active_prev = 0;
517
518	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
519
520	SET_FLAG (this, FLAG_REMOVED);
521
522	/* What is not cleared is next, prev, and count */
523
524	expmul = 1.0;
525	face = blank_face;
526
527	if (settings.casting_time)
528	casting_time = -1;
529	}
530
531	void object::clone (object *destination)
532	{
533	*(object_copy *)destination = *this;
534	*(object_pod *)destination = *this;
535
536	if (self || cb)
537	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (destination));
538	}
539
540	/*	472	/*
541	* copy object first frees everything allocated by the second object,	473	* copy_to first frees everything allocated by the dst object,
542	* and then copies the contends of the first object into the second	474	* and then copies the contents of itself into the second
543	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
544	* 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,
545	* 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
546	* will point at garbage.	478	* will point at garbage.
547	*/	479	*/
548	void	480	void
549	copy_object (object *op2, object *op)	481	object::copy_to (object *dst)
550	{	482	{
551	bool is_freed = QUERY_FLAG (op, FLAG_FREED);	483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
552	bool is_removed = QUERY_FLAG (op, FLAG_REMOVED);	484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
553		485
554	op2->clone (op);	486	*(object_copy *)dst = *this;
555		487
556	if (is_freed)	488	if (is_freed)
557	SET_FLAG (op, FLAG_FREED);	489	SET_FLAG (dst, FLAG_FREED);
558		490
559	if (is_removed)	491	if (is_removed)
560	SET_FLAG (op, FLAG_REMOVED);	492	SET_FLAG (dst, FLAG_REMOVED);
561		493
562	if (op2->speed < 0)	494	if (speed < 0)
563	op->speed_left = op2->speed_left - RANDOM () % 200 / 100.0;	495	dst->speed_left = speed_left - RANDOM () % 200 / 100.0;
564		496
565	/* Copy over key_values, if any. */	497	/* Copy over key_values, if any. */
566	if (op2->key_values)	498	if (key_values)
567	{	499	{
568	key_value *tail = 0;	500	key_value *tail = 0;
569	key_value *i;	501	key_value *i;
570		502
571	op->key_values = 0;	503	dst->key_values = 0;
572		504
573	for (i = op2->key_values; i; i = i->next)	505	for (i = key_values; i; i = i->next)
574	{	506	{
575	key_value *new_link = new key_value;	507	key_value *new_link = new key_value;
576		508
577	new_link->next = 0;	509	new_link->next = 0;
578	new_link->key = i->key;	510	new_link->key = i->key;
579	new_link->value = i->value;	511	new_link->value = i->value;
580		512
581	/* Try and be clever here, too. */	513	/* Try and be clever here, too. */
582	if (!op->key_values)	514	if (!dst->key_values)
583	{	515	{
584	op->key_values = new_link;	516	dst->key_values = new_link;
585	tail = new_link;	517	tail = new_link;
586	}	518	}
587	else	519	else
588	{	520	{
589	tail->next = new_link;	521	tail->next = new_link;
590	tail = new_link;	522	tail = new_link;
591	}	523	}
592	}	524	}
593	}	525	}
594		526
595	update_ob_speed (op);	527	dst->set_speed (dst->speed);
		528	}
		529
		530	object *
		531	object::clone ()
		532	{
		533	object *neu = create ();
		534	copy_to (neu);
		535	return neu;
596	}	536	}
597		537
598	/*	538	/*
599	* 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
600	* 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
…		…
614	* 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
615	* 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.
616	* 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.
617	*/	557	*/
618	void	558	void
619	update_ob_speed (object *op)	559	object::set_speed (float speed)
620	{	560	{
621	extern int arch_init;	561	extern int arch_init;
622		562
623	/* No reason putting the archetypes objects on the speed list,	563	/* No reason putting the archetypes objects on the speed list,
624	* since they never really need to be updated.	564	* since they never really need to be updated.
625	*/	565	*/
626		566	if (flag [FLAG_FREED] && speed)
627	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
628	{	567	{
629	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	568	LOG (llevError, "Object %s is freed but has speed.\n", &name);
630	#ifdef MANY_CORES
631	abort ();
632	#else
633	op->speed = 0;	569	speed = 0;
634	#endif
635	}	570	}
		571
		572	this->speed = speed;
636		573
637	if (arch_init)	574	if (arch_init)
638	return;	575	return;
639		576
640	if (FABS (op->speed) > MIN_ACTIVE_SPEED)	577	if (FABS (speed) > MIN_ACTIVE_SPEED)
641	{	578	{
642	/* If already on active list, don't do anything */	579	/* If already on active list, don't do anything */
643	if (op->active_next || op->active_prev || op == active_objects)	580	if (active_next || active_prev || this == active_objects)
644	return;	581	return;
645		582
646	/* process_events() expects us to insert the object at the beginning	583	/* process_events() expects us to insert the object at the beginning
647	* of the list. */	584	* of the list. */
648	op->active_next = active_objects;	585	active_next = active_objects;
649		586
650	if (op->active_next != NULL)	587	if (active_next)
651	op->active_next->active_prev = op;	588	active_next->active_prev = this;
652		589
653	active_objects = op;	590	active_objects = this;
654	}	591	}
655	else	592	else
656	{	593	{
657	/* If not on the active list, nothing needs to be done */	594	/* If not on the active list, nothing needs to be done */
658	if (!op->active_next && !op->active_prev && op != active_objects)	595	if (!active_next && !active_prev && this != active_objects)
659	return;	596	return;
660		597
661	if (op->active_prev == NULL)	598	if (!active_prev)
662	{	599	{
663	active_objects = op->active_next;	600	active_objects = active_next;
664		601
665	if (op->active_next != NULL)	602	if (active_next)
666	op->active_next->active_prev = NULL;	603	active_next->active_prev = 0;
667	}	604	}
668	else	605	else
669	{	606	{
670	op->active_prev->active_next = op->active_next;	607	active_prev->active_next = active_next;
671		608
672	if (op->active_next)	609	if (active_next)
673	op->active_next->active_prev = op->active_prev;	610	active_next->active_prev = active_prev;
674	}	611	}
675		612
676	op->active_next = NULL;	613	active_next = 0;
677	op->active_prev = NULL;	614	active_prev = 0;
678	}	615	}
679	}	616	}
680		617
681	/* This function removes object 'op' from the list of active	618	/* This function removes object 'op' from the list of active
682	* objects.	619	* objects.
…		…
708	op->active_next = NULL;	645	op->active_next = NULL;
709	op->active_prev = NULL;	646	op->active_prev = NULL;
710	}	647	}
711		648
712	/*	649	/*
713	* update_object() updates the array which represents the map.	650	* update_object() updates the the map.
714	* It takes into account invisible objects (and represent squares covered	651	* It takes into account invisible objects (and represent squares covered
715	* by invisible objects by whatever is below them (unless it's another	652	* by invisible objects by whatever is below them (unless it's another
716	* invisible object, etc...)	653	* invisible object, etc...)
717	* If the object being updated is beneath a player, the look-window	654	* If the object being updated is beneath a player, the look-window
718	* of that player is updated (this might be a suboptimal way of	655	* of that player is updated (this might be a suboptimal way of
719	* updating that window, though, since update_object() is called _often_)	656	* updating that window, though, since update_object() is called _often_)
720	*	657	*
721	* action is a hint of what the caller believes need to be done.	658	* action is a hint of what the caller believes need to be done.
722	* For example, if the only thing that has changed is the face (due to
723	* an animation), we don't need to call update_position until that actually
724	* comes into view of a player. OTOH, many other things, like addition/removal
725	* of walls or living creatures may need us to update the flags now.
726	* current action are:	659	* current action are:
727	* UP_OBJ_INSERT: op was inserted	660	* UP_OBJ_INSERT: op was inserted
728	* UP_OBJ_REMOVE: op was removed	661	* UP_OBJ_REMOVE: op was removed
729	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	662	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
730	* as that is easier than trying to look at what may have changed.	663	* as that is easier than trying to look at what may have changed.
731	* UP_OBJ_FACE: only the objects face has changed.	664	* UP_OBJ_FACE: only the objects face has changed.
732	*/	665	*/
733
734	void	666	void
735	update_object (object *op, int action)	667	update_object (object *op, int action)
736	{	668	{
737	int update_now = 0, flags;
738	MoveType move_on, move_off, move_block, move_slow;	669	MoveType move_on, move_off, move_block, move_slow;
739		670
740	if (op == NULL)	671	if (op == NULL)
741	{	672	{
742	/* this should never happen */	673	/* this should never happen */
743	LOG (llevDebug, "update_object() called for NULL object.\n");	674	LOG (llevDebug, "update_object() called for NULL object.\n");
744	return;	675	return;
745	}	676	}
746		677
747	if (op->env != NULL)	678	if (op->env)
748	{	679	{
749	/* Animation is currently handled by client, so nothing	680	/* Animation is currently handled by client, so nothing
750	* to do in this case.	681	* to do in this case.
751	*/	682	*/
752	return;	683	return;
…		…
757	*/	688	*/
758	if (!op->map || op->map->in_memory == MAP_SAVING)	689	if (!op->map || op->map->in_memory == MAP_SAVING)
759	return;	690	return;
760		691
761	/* make sure the object is within map boundaries */	692	/* make sure the object is within map boundaries */
762	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	693	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
763	{	694	{
764	LOG (llevError, "update_object() called for object out of map!\n");	695	LOG (llevError, "update_object() called for object out of map!\n");
765	#ifdef MANY_CORES	696	#ifdef MANY_CORES
766	abort ();	697	abort ();
767	#endif	698	#endif
768	return;	699	return;
769	}	700	}
770		701
771	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	702	mapspace &m = op->ms ();
772	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
773	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
774	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
775	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
776	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
777		703
		704	if (m.flags_ & P_NEED_UPDATE)
		705	/* nop */;
778	if (action == UP_OBJ_INSERT)	706	else if (action == UP_OBJ_INSERT)
779	{	707	{
		708	// this is likely overkill, TODO: revisit (schmorp)
780	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	709	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
781	update_now = 1;
782
783	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	710	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
784	update_now = 1;	711	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
785		712	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		713	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
786	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	714	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
787	update_now = 1;
788
789	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
790	update_now = 1;
791
792	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
793	update_now = 1;
794
795	if ((move_on | op->move_on) != move_on)	715	|| (m.move_on | op->move_on ) != m.move_on
796	update_now = 1;
797
798	if ((move_off | op->move_off) != move_off)	716	|| (m.move_off | op->move_off ) != m.move_off
799	update_now = 1;	717	|| (m.move_slow | op->move_slow) != m.move_slow
800
801	/* This isn't perfect, but I don't expect a lot of objects to	718	/* This isn't perfect, but I don't expect a lot of objects to
802	* to have move_allow right now.	719	* to have move_allow right now.
803	*/	720	*/
804	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	721	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
805	update_now = 1;	722	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
806		723	m.flags_ = P_NEED_UPDATE;
807	if ((move_slow | op->move_slow) != move_slow)
808	update_now = 1;
809	}	724	}
810
811	/* if the object is being removed, we can't make intelligent	725	/* if the object is being removed, we can't make intelligent
812	* decisions, because remove_ob can't really pass the object	726	* decisions, because remove_ob can't really pass the object
813	* that is being removed.	727	* that is being removed.
814	*/	728	*/
815	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	729	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
816	update_now = 1;	730	m.flags_ = P_NEED_UPDATE;
817	else if (action == UP_OBJ_FACE)	731	else if (action == UP_OBJ_FACE)
818	/* Nothing to do for that case */ ;	732	/* Nothing to do for that case */ ;
819	else	733	else
820	LOG (llevError, "update_object called with invalid action: %d\n", action);	734	LOG (llevError, "update_object called with invalid action: %d\n", action);
821		735
822	if (update_now)
823	{
824	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
825	update_position (op->map, op->x, op->y);
826	}
827
828	if (op->more != NULL)	736	if (op->more)
829	update_object (op->more, action);	737	update_object (op->more, action);
830	}	738	}
831		739
832	object::vector object::mortals;
833	object::vector object::objects; // not yet used	740	object::vector object::objects; // not yet used
834	object *object::first;	741	object *object::first;
835
836	void object::free_mortals ()
837	{
838	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
839	if ((*i)->refcnt)
840	++i; // further delay freeing
841	else
842	{
843	delete *i;
844	mortals.erase (i);
845	}
846	}
847		742
848	object::object ()	743	object::object ()
849	{	744	{
850	SET_FLAG (this, FLAG_REMOVED);	745	SET_FLAG (this, FLAG_REMOVED);
851		746
…		…
883		778
884	prev = 0;	779	prev = 0;
885	next = 0;	780	next = 0;
886	}	781	}
887		782
		783	/*
		784	* Remove and free all objects in the inventory of the given object.
		785	* object.c ?
		786	*/
		787	void
		788	object::destroy_inv (bool drop_to_ground)
		789	{
		790	/* Only if the space blocks everything do we not process -
		791	* if some form of movement is allowed, let objects
		792	* drop on that space.
		793	*/
		794	if (!drop_to_ground || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
		795	{
		796	while (inv)
		797	inv->destroy ();
		798	}
		799	else
		800	{ /* Put objects in inventory onto this space */
		801	while (inv)
		802	{
		803	object *op = inv;
		804
		805	if (op->flag [FLAG_STARTEQUIP]
		806	|| op->flag [FLAG_NO_DROP]
		807	|| op->type == RUNE
		808	|| op->type == TRAP
		809	|| op->flag [FLAG_IS_A_TEMPLATE])
		810	op->destroy ();
		811	else
		812	{
		813	op->remove ();
		814	op->x = x;
		815	op->y = y;
		816	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
		817	}
		818	}
		819	}
		820	}
		821
888	object *object::create ()	822	object *object::create ()
889	{	823	{
890	object *op = new object;	824	object *op = new object;
891	op->link ();	825	op->link ();
892	return op;	826	return op;
893	}	827	}
894		828
895	/*	829	void
896	* free_object() frees everything allocated by an object, removes	830	object::do_destroy ()
897	* it from the list of used objects, and puts it on the list of
898	* free objects. The IS_FREED() flag is set in the object.
899	* The object must have been removed by remove_ob() first for
900	* this function to succeed.
901	*
902	* If destroy_inventory is set, free inventory as well. Else drop items in
903	* inventory to the ground.
904	*/
905	void object::destroy (bool destroy_inventory)
906	{	831	{
907	if (QUERY_FLAG (this, FLAG_FREED))	832	if (flag [FLAG_IS_LINKED])
		833	remove_button_link (this);
		834
		835	if (flag [FLAG_FRIENDLY])
		836	remove_friendly_object (this);
		837
		838	if (!flag [FLAG_REMOVED])
		839	remove ();
		840
		841	if (flag [FLAG_FREED])
908	return;	842	return;
909		843
910	if (QUERY_FLAG (this, FLAG_FRIENDLY))	844	flag [FLAG_FREED] = 1;
911	remove_friendly_object (this);
912		845
913	if (!QUERY_FLAG (this, FLAG_REMOVED))	846	attachable::do_destroy ();
914	remove_ob (this);
915		847
916	SET_FLAG (this, FLAG_FREED);	848	destroy_inv (true);
917		849	set_speed (0);
918	if (more)	850	unlink ();
919	{
920	more->destroy (destroy_inventory);
921	more = 0;
922	}
923
924	if (inv)
925	{
926	/* Only if the space blocks everything do we not process -
927	* if some form of movement is allowed, let objects
928	* drop on that space.
929	*/
930	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
931	{
932	object *op = inv;
933
934	while (op)
935	{
936	object *tmp = op->below;
937	op->destroy (destroy_inventory);
938	op = tmp;
939	}
940	}
941	else
942	{ /* Put objects in inventory onto this space */
943	object *op = inv;
944
945	while (op)
946	{
947	object *tmp = op->below;
948
949	remove_ob (op);
950
951	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
952	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
953	free_object (op);
954	else
955	{
956	op->x = x;
957	op->y = y;
958	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
959	}
960
961	op = tmp;
962	}
963	}
964	}
965		851
966	// hack to ensure that freed objects still have a valid map	852	// hack to ensure that freed objects still have a valid map
967	{	853	{
968	static maptile *freed_map; // freed objects are moved here to avoid crashes	854	static maptile *freed_map; // freed objects are moved here to avoid crashes
969		855
…		…
981	map = freed_map;	867	map = freed_map;
982	x = 1;	868	x = 1;
983	y = 1;	869	y = 1;
984	}	870	}
985		871
		872	head = 0;
		873
		874	if (more)
		875	{
		876	more->destroy ();
		877	more = 0;
		878	}
		879
986	// clear those pointers that likely might have circular references to us	880	// clear those pointers that likely might have circular references to us
987	owner = 0;	881	owner = 0;
988	enemy = 0;	882	enemy = 0;
989	attacked_by = 0;	883	attacked_by = 0;
990		884
991	// only relevant for players(?), but make sure of it anyways	885	// only relevant for players(?), but make sure of it anyways
992	contr = 0;	886	contr = 0;
		887	}
993		888
994	/* Remove object from the active list */	889	void
995	speed = 0;	890	object::destroy (bool destroy_inventory)
996	update_ob_speed (this);	891	{
		892	if (destroyed ())
		893	return;
997		894
998	unlink ();	895	if (destroy_inventory)
		896	destroy_inv (false);
999		897
1000	mortals.push_back (this);	898	attachable::destroy ();
1001	}	899	}
1002		900
1003	/*	901	/*
1004	* sub_weight() recursively (outwards) subtracts a number from the	902	* sub_weight() recursively (outwards) subtracts a number from the
1005	* weight of an object (and what is carried by it's environment(s)).	903	* weight of an object (and what is carried by it's environment(s)).
…		…
1015	op->carrying -= weight;	913	op->carrying -= weight;
1016	op = op->env;	914	op = op->env;
1017	}	915	}
1018	}	916	}
1019		917
1020	/* remove_ob(op):	918	/* op->remove ():
1021	* This function removes the object op from the linked list of objects	919	* This function removes the object op from the linked list of objects
1022	* which it is currently tied to. When this function is done, the	920	* which it is currently tied to. When this function is done, the
1023	* object will have no environment. If the object previously had an	921	* object will have no environment. If the object previously had an
1024	* environment, the x and y coordinates will be updated to	922	* environment, the x and y coordinates will be updated to
1025	* the previous environment.	923	* the previous environment.
…		…
1029	object::remove ()	927	object::remove ()
1030	{	928	{
1031	object *tmp, *last = 0;	929	object *tmp, *last = 0;
1032	object *otmp;	930	object *otmp;
1033		931
1034	int check_walk_off;
1035
1036	if (QUERY_FLAG (this, FLAG_REMOVED))	932	if (QUERY_FLAG (this, FLAG_REMOVED))
1037	return;	933	return;
1038		934
1039	SET_FLAG (this, FLAG_REMOVED);	935	SET_FLAG (this, FLAG_REMOVED);
		936	INVOKE_OBJECT (REMOVE, this);
1040		937
1041	if (more)	938	if (more)
1042	more->remove ();	939	more->remove ();
1043		940
1044	/*	941	/*
…		…
1054		951
1055	/* NO_FIX_PLAYER is set when a great many changes are being	952	/* NO_FIX_PLAYER is set when a great many changes are being
1056	* made to players inventory. If set, avoiding the call	953	* made to players inventory. If set, avoiding the call
1057	* to save cpu time.	954	* to save cpu time.
1058	*/	955	*/
1059	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	956	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1060	fix_player (otmp);	957	otmp->update_stats ();
1061		958
1062	if (above != NULL)	959	if (above != NULL)
1063	above->below = below;	960	above->below = below;
1064	else	961	else
1065	env->inv = below;	962	env->inv = below;
…		…
1084		981
1085	/* link the object above us */	982	/* link the object above us */
1086	if (above)	983	if (above)
1087	above->below = below;	984	above->below = below;
1088	else	985	else
1089	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */	986	map->at (x, y).top = below; /* we were top, set new top */
1090		987
1091	/* Relink the object below us, if there is one */	988	/* Relink the object below us, if there is one */
1092	if (below)	989	if (below)
1093	below->above = above;	990	below->above = above;
1094	else	991	else
…		…
1106	dump = dump_object (GET_MAP_OB (map, x, y));	1003	dump = dump_object (GET_MAP_OB (map, x, y));
1107	LOG (llevError, "%s\n", dump);	1004	LOG (llevError, "%s\n", dump);
1108	free (dump);	1005	free (dump);
1109	}	1006	}
1110		1007
1111	SET_MAP_OB (map, x, y, above); /* goes on above it. */	1008	map->at (x, y).bot = above; /* goes on above it. */
1112	}	1009	}
1113		1010
1114	above = 0;	1011	above = 0;
1115	below = 0;	1012	below = 0;
1116		1013
1117	if (map->in_memory == MAP_SAVING)	1014	if (map->in_memory == MAP_SAVING)
1118	return;	1015	return;
1119		1016
1120	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1017	int check_walk_off = !flag [FLAG_NO_APPLY];
1121		1018
1122	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1019	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1123	{	1020	{
1124	/* No point updating the players look faces if he is the object	1021	/* No point updating the players look faces if he is the object
1125	* being removed.	1022	* being removed.
1126	*/	1023	*/
1127		1024
…		…
1131	* removed (most likely destroyed), update the player view	1028	* removed (most likely destroyed), update the player view
1132	* appropriately.	1029	* appropriately.
1133	*/	1030	*/
1134	if (tmp->container == this)	1031	if (tmp->container == this)
1135	{	1032	{
1136	CLEAR_FLAG (this, FLAG_APPLIED);	1033	flag [FLAG_APPLIED] = 0;
1137	tmp->container = 0;	1034	tmp->container = 0;
1138	}	1035	}
1139		1036
1140	tmp->contr->socket.update_look = 1;	1037	if (tmp->contr->ns)
		1038	tmp->contr->ns->floorbox_update ();
1141	}	1039	}
1142		1040
1143	/* See if player moving off should effect something */	1041	/* See if player moving off should effect something */
1144	if (check_walk_off	1042	if (check_walk_off
1145	&& ((move_type & tmp->move_off)	1043	&& ((move_type & tmp->move_off)
…		…
1147	{	1045	{
1148	move_apply (tmp, this, 0);	1046	move_apply (tmp, this, 0);
1149		1047
1150	if (destroyed ())	1048	if (destroyed ())
1151	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1049	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
		1050	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1152	}	1051	}
1153		1052
1154	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1053	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1155		1054
1156	if (tmp->above == tmp)	1055	if (tmp->above == tmp)
…		…
1159	last = tmp;	1058	last = tmp;
1160	}	1059	}
1161		1060
1162	/* last == NULL of there are no objects on this space */	1061	/* last == NULL of there are no objects on this space */
1163	if (!last)	1062	if (!last)
1164	{	1063	map->at (x, y).flags_ = P_NEED_UPDATE;
1165	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1166	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1167	* those out anyways, and if there are any flags set right now, they won't
1168	* be correct anyways.
1169	*/
1170	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1171	update_position (map, x, y);
1172	}
1173	else	1064	else
1174	update_object (last, UP_OBJ_REMOVE);	1065	update_object (last, UP_OBJ_REMOVE);
1175		1066
1176	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)	1067	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1177	update_all_los (map, x, y);	1068	update_all_los (map, x, y);
1178	}	1069	}
1179	}	1070	}
1180		1071
1181	/*	1072	/*
…		…
1190	merge_ob (object *op, object *top)	1081	merge_ob (object *op, object *top)
1191	{	1082	{
1192	if (!op->nrof)	1083	if (!op->nrof)
1193	return 0;	1084	return 0;
1194		1085
1195	if (top == NULL)	1086	if (top)
1196	for (top = op; top != NULL && top->above != NULL; top = top->above);	1087	for (top = op; top && top->above; top = top->above)
		1088	;
1197		1089
1198	for (; top != NULL; top = top->below)	1090	for (; top; top = top->below)
1199	{	1091	{
1200	if (top == op)	1092	if (top == op)
1201	continue;	1093	continue;
1202	if (CAN_MERGE (op, top))	1094
		1095	if (object::can_merge (op, top))
1203	{	1096	{
1204	top->nrof += op->nrof;	1097	top->nrof += op->nrof;
1205		1098
1206	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/	1099	/* CLEAR_FLAG(top,FLAG_STARTEQUIP);*/
1207	op->weight = 0; /* Don't want any adjustements now */	1100	op->weight = 0; /* Don't want any adjustements now */
1208	remove_ob (op);	1101	op->destroy ();
1209	free_object (op);
1210	return top;	1102	return top;
1211	}	1103	}
1212	}	1104	}
1213		1105
1214	return 0;	1106	return 0;
…		…
1253	* Return value:	1145	* Return value:
1254	* new object if 'op' was merged with other object	1146	* new object if 'op' was merged with other object
1255	* NULL if 'op' was destroyed	1147	* NULL if 'op' was destroyed
1256	* just 'op' otherwise	1148	* just 'op' otherwise
1257	*/	1149	*/
1258
1259	object *	1150	object *
1260	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1151	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1261	{	1152	{
1262	object *tmp, *top, *floor = NULL;	1153	object *tmp, *top, *floor = NULL;
1263	sint16 x, y;	1154	sint16 x, y;
…		…
1297	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);	1188	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1298	free (dump);	1189	free (dump);
1299	return op;	1190	return op;
1300	}	1191	}
1301		1192
1302	if (op->more != NULL)	1193	if (op->more)
1303	{	1194	{
1304	/* The part may be on a different map. */	1195	/* The part may be on a different map. */
1305		1196
1306	object *more = op->more;	1197	object *more = op->more;
1307		1198
…		…
1323	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)	1214	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1324	{	1215	{
1325	if (!op->head)	1216	if (!op->head)
1326	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1217	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1327		1218
1328	return NULL;	1219	return 0;
1329	}	1220	}
1330	}	1221	}
1331		1222
1332	CLEAR_FLAG (op, FLAG_REMOVED);	1223	CLEAR_FLAG (op, FLAG_REMOVED);
1333		1224
…		…
1341		1232
1342	/* this has to be done after we translate the coordinates.	1233	/* this has to be done after we translate the coordinates.
1343	*/	1234	*/
1344	if (op->nrof && !(flag & INS_NO_MERGE))	1235	if (op->nrof && !(flag & INS_NO_MERGE))
1345	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1236	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)
1346	if (CAN_MERGE (op, tmp))	1237	if (object::can_merge (op, tmp))
1347	{	1238	{
1348	op->nrof += tmp->nrof;	1239	op->nrof += tmp->nrof;
1349	remove_ob (tmp);	1240	tmp->destroy ();
1350	free_object (tmp);
1351	}	1241	}
1352		1242
1353	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */	1243	CLEAR_FLAG (op, FLAG_APPLIED); /* hack for fixing F_APPLIED in items of dead people */
1354	CLEAR_FLAG (op, FLAG_INV_LOCKED);	1244	CLEAR_FLAG (op, FLAG_INV_LOCKED);
1355		1245
…		…
1368	op->below = originator->below;	1258	op->below = originator->below;
1369		1259
1370	if (op->below)	1260	if (op->below)
1371	op->below->above = op;	1261	op->below->above = op;
1372	else	1262	else
1373	SET_MAP_OB (op->map, op->x, op->y, op);	1263	op->ms ().bot = op;
1374		1264
1375	/* since *below* originator, no need to update top */	1265	/* since *below* originator, no need to update top */
1376	originator->below = op;	1266	originator->below = op;
1377	}	1267	}
1378	else	1268	else
…		…
1424	* If INS_ON_TOP is used, don't do this processing	1314	* If INS_ON_TOP is used, don't do this processing
1425	* Need to find the object that in fact blocks view, otherwise	1315	* Need to find the object that in fact blocks view, otherwise
1426	* stacking is a bit odd.	1316	* stacking is a bit odd.
1427	*/	1317	*/
1428	if (!(flag & INS_ON_TOP) &&	1318	if (!(flag & INS_ON_TOP) &&
1429	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1319	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1430	{	1320	{
1431	for (last = top; last != floor; last = last->below)	1321	for (last = top; last != floor; last = last->below)
1432	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1322	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1433	break;	1323	break;
1434	/* Check to see if we found the object that blocks view,	1324	/* Check to see if we found the object that blocks view,
…		…
1457		1347
1458	if (op->above)	1348	if (op->above)
1459	op->above->below = op;	1349	op->above->below = op;
1460		1350
1461	op->below = NULL;	1351	op->below = NULL;
1462	SET_MAP_OB (op->map, op->x, op->y, op);	1352	op->ms ().bot = op;
1463	}	1353	}
1464	else	1354	else
1465	{ /* get inserted into the stack above top */	1355	{ /* get inserted into the stack above top */
1466	op->above = top->above;	1356	op->above = top->above;
1467		1357
…		…
1471	op->below = top;	1361	op->below = top;
1472	top->above = op;	1362	top->above = op;
1473	}	1363	}
1474		1364
1475	if (op->above == NULL)	1365	if (op->above == NULL)
1476	SET_MAP_TOP (op->map, op->x, op->y, op);	1366	op->ms ().top = op;
1477	} /* else not INS_BELOW_ORIGINATOR */	1367	} /* else not INS_BELOW_ORIGINATOR */
1478		1368
1479	if (op->type == PLAYER)	1369	if (op->type == PLAYER)
1480	op->contr->do_los = 1;	1370	op->contr->do_los = 1;
1481		1371
1482	/* If we have a floor, we know the player, if any, will be above	1372	/* If we have a floor, we know the player, if any, will be above
1483	* it, so save a few ticks and start from there.	1373	* it, so save a few ticks and start from there.
1484	*/	1374	*/
1485	if (!(flag & INS_MAP_LOAD))	1375	if (!(flag & INS_MAP_LOAD))
1486	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1376	if (object *pl = op->ms ().player ())
1487	if (tmp->type == PLAYER)	1377	if (pl->contr->ns)
1488	tmp->contr->socket.update_look = 1;	1378	pl->contr->ns->floorbox_update ();
1489		1379
1490	/* If this object glows, it may affect lighting conditions that are	1380	/* If this object glows, it may affect lighting conditions that are
1491	* visible to others on this map. But update_all_los is really	1381	* visible to others on this map. But update_all_los is really
1492	* an inefficient way to do this, as it means los for all players	1382	* an inefficient way to do this, as it means los for all players
1493	* on the map will get recalculated. The players could very well	1383	* on the map will get recalculated. The players could very well
1494	* be far away from this change and not affected in any way -	1384	* be far away from this change and not affected in any way -
1495	* this should get redone to only look for players within range,	1385	* this should get redone to only look for players within range,
1496	* or just updating the P_NEED_UPDATE for spaces within this area	1386	* or just updating the P_NEED_UPDATE for spaces within this area
1497	* of effect may be sufficient.	1387	* of effect may be sufficient.
1498	*/	1388	*/
1499	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1389	if (op->map->darkness && (op->glow_radius != 0))
1500	update_all_los (op->map, op->x, op->y);	1390	update_all_los (op->map, op->x, op->y);
1501		1391
1502	/* updates flags (blocked, alive, no magic, etc) for this map space */	1392	/* updates flags (blocked, alive, no magic, etc) for this map space */
1503	update_object (op, UP_OBJ_INSERT);	1393	update_object (op, UP_OBJ_INSERT);
1504		1394
		1395	INVOKE_OBJECT (INSERT, op);
		1396
1505	/* Don't know if moving this to the end will break anything. However,	1397	/* Don't know if moving this to the end will break anything. However,
1506	* we want to have update_look set above before calling this.	1398	* we want to have floorbox_update called before calling this.
1507	*	1399	*
1508	* check_move_on() must be after this because code called from	1400	* check_move_on() must be after this because code called from
1509	* check_move_on() depends on correct map flags (so functions like	1401	* check_move_on() depends on correct map flags (so functions like
1510	* blocked() and wall() work properly), and these flags are updated by	1402	* blocked() and wall() work properly), and these flags are updated by
1511	* update_object().	1403	* update_object().
…		…
1513		1405
1514	/* if this is not the head or flag has been passed, don't check walk on status */	1406	/* if this is not the head or flag has been passed, don't check walk on status */
1515	if (!(flag & INS_NO_WALK_ON) && !op->head)	1407	if (!(flag & INS_NO_WALK_ON) && !op->head)
1516	{	1408	{
1517	if (check_move_on (op, originator))	1409	if (check_move_on (op, originator))
1518	return NULL;	1410	return 0;
1519		1411
1520	/* If we are a multi part object, lets work our way through the check	1412	/* If we are a multi part object, lets work our way through the check
1521	* walk on's.	1413	* walk on's.
1522	*/	1414	*/
1523	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1415	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1524	if (check_move_on (tmp, originator))	1416	if (check_move_on (tmp, originator))
1525	return NULL;	1417	return 0;
1526	}	1418	}
1527		1419
1528	return op;	1420	return op;
1529	}	1421	}
1530		1422
1531	/* this function inserts an object in the map, but if it	1423	/* this function inserts an object in the map, but if it
1532	* finds an object of its own type, it'll remove that one first.	1424	* finds an object of its own type, it'll remove that one first.
1533	* op is the object to insert it under: supplies x and the map.	1425	* op is the object to insert it under: supplies x and the map.
1534	*/	1426	*/
1535	void	1427	void
1536	replace_insert_ob_in_map (const char *arch_string, object *op)	1428	replace_insert_ob_in_map (const char *arch_string, object *op)
1537	{	1429	{
1538	object *	1430	object *tmp, *tmp1;
1539	tmp;
1540	object *
1541	tmp1;
1542		1431
1543	/* first search for itself and remove any old instances */	1432	/* first search for itself and remove any old instances */
1544		1433
1545	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1434	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)
1546	{
1547	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1435	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1548	{	1436	tmp->destroy ();
1549	remove_ob (tmp);
1550	free_object (tmp);
1551	}
1552	}
1553		1437
1554	tmp1 = arch_to_object (archetype::find (arch_string));	1438	tmp1 = arch_to_object (archetype::find (arch_string));
1555		1439
1556	tmp1->x = op->x;	1440	tmp1->x = op->x;
1557	tmp1->y = op->y;	1441	tmp1->y = op->y;
…		…
1567	*/	1451	*/
1568		1452
1569	object *	1453	object *
1570	get_split_ob (object *orig_ob, uint32 nr)	1454	get_split_ob (object *orig_ob, uint32 nr)
1571	{	1455	{
1572	object *	1456	object *newob;
1573	newob;
1574	int
1575	is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1457	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
1576		1458
1577	if (orig_ob->nrof < nr)	1459	if (orig_ob->nrof < nr)
1578	{	1460	{
1579	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);	1461	sprintf (errmsg, "There are only %d %ss.", orig_ob->nrof ? orig_ob->nrof : 1, &orig_ob->name);
1580	return NULL;	1462	return NULL;
1581	}	1463	}
1582		1464
1583	newob = object_create_clone (orig_ob);	1465	newob = object_create_clone (orig_ob);
1584		1466
1585	if ((orig_ob->nrof -= nr) < 1)	1467	if ((orig_ob->nrof -= nr) < 1)
1586	{	1468	orig_ob->destroy (1);
1587	if (!is_removed)
1588	remove_ob (orig_ob);
1589	free_object2 (orig_ob, 1);
1590	}
1591	else if (!is_removed)	1469	else if (!is_removed)
1592	{	1470	{
1593	if (orig_ob->env != NULL)	1471	if (orig_ob->env != NULL)
1594	sub_weight (orig_ob->env, orig_ob->weight * nr);	1472	sub_weight (orig_ob->env, orig_ob->weight * nr);
1595	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)	1473	if (orig_ob->env == NULL && orig_ob->map->in_memory != MAP_IN_MEMORY)
…		…
1615		1493
1616	object *	1494	object *
1617	decrease_ob_nr (object *op, uint32 i)	1495	decrease_ob_nr (object *op, uint32 i)
1618	{	1496	{
1619	object *tmp;	1497	object *tmp;
1620	player *pl;
1621		1498
1622	if (i == 0) /* objects with op->nrof require this check */	1499	if (i == 0) /* objects with op->nrof require this check */
1623	return op;	1500	return op;
1624		1501
1625	if (i > op->nrof)	1502	if (i > op->nrof)
1626	i = op->nrof;	1503	i = op->nrof;
1627		1504
1628	if (QUERY_FLAG (op, FLAG_REMOVED))	1505	if (QUERY_FLAG (op, FLAG_REMOVED))
1629	op->nrof -= i;	1506	op->nrof -= i;
1630	else if (op->env != NULL)	1507	else if (op->env)
1631	{	1508	{
1632	/* is this object in the players inventory, or sub container	1509	/* is this object in the players inventory, or sub container
1633	* therein?	1510	* therein?
1634	*/	1511	*/
1635	tmp = is_player_inv (op->env);	1512	tmp = op->in_player ();
1636	/* nope. Is this a container the player has opened?	1513	/* nope. Is this a container the player has opened?
1637	* If so, set tmp to that player.	1514	* If so, set tmp to that player.
1638	* IMO, searching through all the players will mostly	1515	* IMO, searching through all the players will mostly
1639	* likely be quicker than following op->env to the map,	1516	* likely be quicker than following op->env to the map,
1640	* and then searching the map for a player.	1517	* and then searching the map for a player.
1641	*/	1518	*/
1642	if (!tmp)	1519	if (!tmp)
1643	{	1520	for_all_players (pl)
1644	for (pl = first_player; pl; pl = pl->next)
1645	if (pl->ob->container == op->env)	1521	if (pl->ob->container == op->env)
		1522	{
		1523	tmp = pl->ob;
1646	break;	1524	break;
1647	if (pl)
1648	tmp = pl->ob;
1649	else
1650	tmp = NULL;
1651	}	1525	}
1652		1526
1653	if (i < op->nrof)	1527	if (i < op->nrof)
1654	{	1528	{
1655	sub_weight (op->env, op->weight * i);	1529	sub_weight (op->env, op->weight * i);
1656	op->nrof -= i;	1530	op->nrof -= i;
1657	if (tmp)	1531	if (tmp)
1658	{
1659	esrv_send_item (tmp, op);	1532	esrv_send_item (tmp, op);
1660	}
1661	}	1533	}
1662	else	1534	else
1663	{	1535	{
1664	remove_ob (op);	1536	op->remove ();
1665	op->nrof = 0;	1537	op->nrof = 0;
1666	if (tmp)	1538	if (tmp)
1667	{
1668	esrv_del_item (tmp->contr, op->count);	1539	esrv_del_item (tmp->contr, op->count);
1669	}
1670	}	1540	}
1671	}	1541	}
1672	else	1542	else
1673	{	1543	{
1674	object *above = op->above;	1544	object *above = op->above;
1675		1545
1676	if (i < op->nrof)	1546	if (i < op->nrof)
1677	op->nrof -= i;	1547	op->nrof -= i;
1678	else	1548	else
1679	{	1549	{
1680	remove_ob (op);	1550	op->remove ();
1681	op->nrof = 0;	1551	op->nrof = 0;
1682	}	1552	}
1683		1553
1684	/* Since we just removed op, op->above is null */	1554	/* Since we just removed op, op->above is null */
1685	for (tmp = above; tmp != NULL; tmp = tmp->above)	1555	for (tmp = above; tmp; tmp = tmp->above)
1686	if (tmp->type == PLAYER)	1556	if (tmp->type == PLAYER)
1687	{	1557	{
1688	if (op->nrof)	1558	if (op->nrof)
1689	esrv_send_item (tmp, op);	1559	esrv_send_item (tmp, op);
1690	else	1560	else
…		…
1694		1564
1695	if (op->nrof)	1565	if (op->nrof)
1696	return op;	1566	return op;
1697	else	1567	else
1698	{	1568	{
1699	free_object (op);	1569	op->destroy ();
1700	return NULL;	1570	return 0;
1701	}	1571	}
1702	}	1572	}
1703		1573
1704	/*	1574	/*
1705	* add_weight(object, weight) adds the specified weight to an object,	1575	* add_weight(object, weight) adds the specified weight to an object,
…		…
1765	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);	1635	CLEAR_FLAG (op, FLAG_OBJ_ORIGINAL);
1766	CLEAR_FLAG (op, FLAG_REMOVED);	1636	CLEAR_FLAG (op, FLAG_REMOVED);
1767	if (op->nrof)	1637	if (op->nrof)
1768	{	1638	{
1769	for (tmp = inv; tmp != NULL; tmp = tmp->below)	1639	for (tmp = inv; tmp != NULL; tmp = tmp->below)
1770	if (CAN_MERGE (tmp, op))	1640	if (object::can_merge (tmp, op))
1771	{	1641	{
1772	/* return the original object and remove inserted object	1642	/* return the original object and remove inserted object
1773	(client needs the original object) */	1643	(client needs the original object) */
1774	tmp->nrof += op->nrof;	1644	tmp->nrof += op->nrof;
1775	/* Weight handling gets pretty funky. Since we are adding to	1645	/* Weight handling gets pretty funky. Since we are adding to
…		…
1793	add_weight (this, op->weight * op->nrof);	1663	add_weight (this, op->weight * op->nrof);
1794	}	1664	}
1795	else	1665	else
1796	add_weight (this, (op->weight + op->carrying));	1666	add_weight (this, (op->weight + op->carrying));
1797		1667
1798	otmp = is_player_inv (this);	1668	otmp = this->in_player ();
1799	if (otmp && otmp->contr)	1669	if (otmp && otmp->contr)
1800	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1670	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1801	fix_player (otmp);	1671	otmp->update_stats ();
1802		1672
1803	op->map = NULL;	1673	op->map = 0;
1804	op->env = this;	1674	op->env = this;
1805	op->above = NULL;	1675	op->above = 0;
1806	op->below = NULL;	1676	op->below = 0;
1807	op->x = 0, op->y = 0;	1677	op->x = 0, op->y = 0;
1808		1678
1809	/* reset the light list and los of the players on the map */	1679	/* reset the light list and los of the players on the map */
1810	if ((op->glow_radius != 0) && map)	1680	if ((op->glow_radius != 0) && map)
1811	{	1681	{
1812	#ifdef DEBUG_LIGHTS	1682	#ifdef DEBUG_LIGHTS
1813	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);	1683	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1814	#endif /* DEBUG_LIGHTS */	1684	#endif /* DEBUG_LIGHTS */
1815	if (MAP_DARKNESS (map))	1685	if (map->darkness)
1816	update_all_los (map, x, y);	1686	update_all_los (map, x, y);
1817	}	1687	}
1818		1688
1819	/* Client has no idea of ordering so lets not bother ordering it here.	1689	/* Client has no idea of ordering so lets not bother ordering it here.
1820	* It sure simplifies this function...	1690	* It sure simplifies this function...
…		…
1825	{	1695	{
1826	op->below = inv;	1696	op->below = inv;
1827	op->below->above = op;	1697	op->below->above = op;
1828	inv = op;	1698	inv = op;
1829	}	1699	}
		1700
		1701	INVOKE_OBJECT (INSERT, this);
1830		1702
1831	return op;	1703	return op;
1832	}	1704	}
1833		1705
1834	/*	1706	/*
…		…
1886		1758
1887	/* The objects have to be checked from top to bottom.	1759	/* The objects have to be checked from top to bottom.
1888	* Hence, we first go to the top:	1760	* Hence, we first go to the top:
1889	*/	1761	*/
1890		1762
1891	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1763	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp && tmp->above; tmp = tmp->above)
1892	{	1764	{
1893	/* Trim the search when we find the first other spell effect	1765	/* Trim the search when we find the first other spell effect
1894	* this helps performance so that if a space has 50 spell objects,	1766	* this helps performance so that if a space has 50 spell objects,
1895	* we don't need to check all of them.	1767	* we don't need to check all of them.
1896	*/	1768	*/
…		…
1951	/*	1823	/*
1952	* present_arch(arch, map, x, y) searches for any objects with	1824	* present_arch(arch, map, x, y) searches for any objects with
1953	* a matching archetype at the given map and coordinates.	1825	* a matching archetype at the given map and coordinates.
1954	* The first matching object is returned, or NULL if none.	1826	* The first matching object is returned, or NULL if none.
1955	*/	1827	*/
1956
1957	object *	1828	object *
1958	present_arch (const archetype *at, maptile *m, int x, int y)	1829	present_arch (const archetype *at, maptile *m, int x, int y)
1959	{	1830	{
1960	object *
1961	tmp;
1962
1963	if (m == NULL || out_of_map (m, x, y))	1831	if (m == NULL || out_of_map (m, x, y))
1964	{	1832	{
1965	LOG (llevError, "Present_arch called outside map.\n");	1833	LOG (llevError, "Present_arch called outside map.\n");
1966	return NULL;	1834	return NULL;
1967	}	1835	}
		1836
1968	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1837	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1969	if (tmp->arch == at)	1838	if (tmp->arch == at)
1970	return tmp;	1839	return tmp;
		1840
1971	return NULL;	1841	return NULL;
1972	}	1842	}
1973		1843
1974	/*	1844	/*
1975	* present(type, map, x, y) searches for any objects with	1845	* present(type, map, x, y) searches for any objects with
1976	* a matching type variable at the given map and coordinates.	1846	* a matching type variable at the given map and coordinates.
1977	* The first matching object is returned, or NULL if none.	1847	* The first matching object is returned, or NULL if none.
1978	*/	1848	*/
1979
1980	object *	1849	object *
1981	present (unsigned char type, maptile *m, int x, int y)	1850	present (unsigned char type, maptile *m, int x, int y)
1982	{	1851	{
1983	object *
1984	tmp;
1985
1986	if (out_of_map (m, x, y))	1852	if (out_of_map (m, x, y))
1987	{	1853	{
1988	LOG (llevError, "Present called outside map.\n");	1854	LOG (llevError, "Present called outside map.\n");
1989	return NULL;	1855	return NULL;
1990	}	1856	}
		1857
1991	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1858	for (object *tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)
1992	if (tmp->type == type)	1859	if (tmp->type == type)
1993	return tmp;	1860	return tmp;
		1861
1994	return NULL;	1862	return NULL;
1995	}	1863	}
1996		1864
1997	/*	1865	/*
1998	* present_in_ob(type, object) searches for any objects with	1866	* present_in_ob(type, object) searches for any objects with
1999	* a matching type variable in the inventory of the given object.	1867	* a matching type variable in the inventory of the given object.
2000	* The first matching object is returned, or NULL if none.	1868	* The first matching object is returned, or NULL if none.
2001	*/	1869	*/
2002
2003	object *	1870	object *
2004	present_in_ob (unsigned char type, const object *op)	1871	present_in_ob (unsigned char type, const object *op)
2005	{	1872	{
2006	object *
2007	tmp;
2008
2009	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1873	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2010	if (tmp->type == type)	1874	if (tmp->type == type)
2011	return tmp;	1875	return tmp;
		1876
2012	return NULL;	1877	return NULL;
2013	}	1878	}
2014		1879
2015	/*	1880	/*
2016	* present_in_ob (type, str, object) searches for any objects with	1881	* present_in_ob (type, str, object) searches for any objects with
…		…
2024	* str is the string to match against. Note that we match against	1889	* str is the string to match against. Note that we match against
2025	* the object name, not the archetype name. this is so that the	1890	* the object name, not the archetype name. this is so that the
2026	* spell code can use one object type (force), but change it's name	1891	* spell code can use one object type (force), but change it's name
2027	* to be unique.	1892	* to be unique.
2028	*/	1893	*/
2029
2030	object *	1894	object *
2031	present_in_ob_by_name (int type, const char *str, const object *op)	1895	present_in_ob_by_name (int type, const char *str, const object *op)
2032	{	1896	{
2033	object *
2034	tmp;
2035
2036	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1897	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2037	{
2038	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1898	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2039	return tmp;	1899	return tmp;
2040	}	1900
2041	return NULL;	1901	return 0;
2042	}	1902	}
2043		1903
2044	/*	1904	/*
2045	* present_arch_in_ob(archetype, object) searches for any objects with	1905	* present_arch_in_ob(archetype, object) searches for any objects with
2046	* a matching archetype in the inventory of the given object.	1906	* a matching archetype in the inventory of the given object.
2047	* The first matching object is returned, or NULL if none.	1907	* The first matching object is returned, or NULL if none.
2048	*/	1908	*/
2049
2050	object *	1909	object *
2051	present_arch_in_ob (const archetype *at, const object *op)	1910	present_arch_in_ob (const archetype *at, const object *op)
2052	{	1911	{
2053	object *
2054	tmp;
2055
2056	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1912	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2057	if (tmp->arch == at)	1913	if (tmp->arch == at)
2058	return tmp;	1914	return tmp;
		1915
2059	return NULL;	1916	return NULL;
2060	}	1917	}
2061		1918
2062	/*	1919	/*
2063	* activate recursively a flag on an object inventory	1920	* activate recursively a flag on an object inventory
2064	*/	1921	*/
2065	void	1922	void
2066	flag_inv (object *op, int flag)	1923	flag_inv (object *op, int flag)
2067	{	1924	{
2068	object *
2069	tmp;
2070
2071	if (op->inv)	1925	if (op->inv)
2072	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1926	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2073	{	1927	{
2074	SET_FLAG (tmp, flag);	1928	SET_FLAG (tmp, flag);
2075	flag_inv (tmp, flag);	1929	flag_inv (tmp, flag);
2076	}	1930	}
2077	} /*	1931	}
		1932
		1933	/*
2078	* desactivate recursively a flag on an object inventory	1934	* deactivate recursively a flag on an object inventory
2079	*/	1935	*/
2080	void	1936	void
2081	unflag_inv (object *op, int flag)	1937	unflag_inv (object *op, int flag)
2082	{	1938	{
2083	object *
2084	tmp;
2085
2086	if (op->inv)	1939	if (op->inv)
2087	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1940	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2088	{	1941	{
2089	CLEAR_FLAG (tmp, flag);	1942	CLEAR_FLAG (tmp, flag);
2090	unflag_inv (tmp, flag);	1943	unflag_inv (tmp, flag);
2091	}	1944	}
2092	}	1945	}
…		…
2095	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1948	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2096	* all it's inventory (recursively).	1949	* all it's inventory (recursively).
2097	* If checksums are used, a player will get set_cheat called for	1950	* If checksums are used, a player will get set_cheat called for
2098	* him/her-self and all object carried by a call to this function.	1951	* him/her-self and all object carried by a call to this function.
2099	*/	1952	*/
2100
2101	void	1953	void
2102	set_cheat (object *op)	1954	set_cheat (object *op)
2103	{	1955	{
2104	SET_FLAG (op, FLAG_WAS_WIZ);	1956	SET_FLAG (op, FLAG_WAS_WIZ);
2105	flag_inv (op, FLAG_WAS_WIZ);	1957	flag_inv (op, FLAG_WAS_WIZ);
…		…
2124	* because arch_blocked (now ob_blocked) needs to know the movement type	1976	* because arch_blocked (now ob_blocked) needs to know the movement type
2125	* to know if the space in question will block the object. We can't use	1977	* to know if the space in question will block the object. We can't use
2126	* the archetype because that isn't correct if the monster has been	1978	* the archetype because that isn't correct if the monster has been
2127	* customized, changed states, etc.	1979	* customized, changed states, etc.
2128	*/	1980	*/
2129
2130	int	1981	int
2131	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	1982	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2132	{	1983	{
2133	int
2134	i,
2135	index = 0, flag;	1984	int index = 0, flag;
2136	static int
2137	altern[SIZEOFFREE];	1985	int altern[SIZEOFFREE];
2138		1986
2139	for (i = start; i < stop; i++)	1987	for (int i = start; i < stop; i++)
2140	{	1988	{
2141	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	1989	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2142	if (!flag)	1990	if (!flag)
2143	altern[index++] = i;	1991	altern [index++] = i;
2144		1992
2145	/* Basically, if we find a wall on a space, we cut down the search size.	1993	/* Basically, if we find a wall on a space, we cut down the search size.
2146	* In this way, we won't return spaces that are on another side of a wall.	1994	* In this way, we won't return spaces that are on another side of a wall.
2147	* This mostly work, but it cuts down the search size in all directions -	1995	* This mostly work, but it cuts down the search size in all directions -
2148	* if the space being examined only has a wall to the north and empty	1996	* if the space being examined only has a wall to the north and empty
2149	* spaces in all the other directions, this will reduce the search space	1997	* spaces in all the other directions, this will reduce the search space
2150	* to only the spaces immediately surrounding the target area, and	1998	* to only the spaces immediately surrounding the target area, and
2151	* won't look 2 spaces south of the target space.	1999	* won't look 2 spaces south of the target space.
2152	*/	2000	*/
2153	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2001	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2154	stop = maxfree[i];	2002	stop = maxfree[i];
2155	}	2003	}
		2004
2156	if (!index)	2005	if (!index)
2157	return -1;	2006	return -1;
		2007
2158	return altern[RANDOM () % index];	2008	return altern[RANDOM () % index];
2159	}	2009	}
2160		2010
2161	/*	2011	/*
2162	* find_first_free_spot(archetype, maptile, x, y) works like	2012	* find_first_free_spot(archetype, maptile, x, y) works like
2163	* find_free_spot(), but it will search max number of squares.	2013	* find_free_spot(), but it will search max number of squares.
2164	* But it will return the first available spot, not a random choice.	2014	* But it will return the first available spot, not a random choice.
2165	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2015	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2166	*/	2016	*/
2167
2168	int	2017	int
2169	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2018	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2170	{	2019	{
2171	int
2172	i;
2173
2174	for (i = 0; i < SIZEOFFREE; i++)	2020	for (int i = 0; i < SIZEOFFREE; i++)
2175	{
2176	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2021	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2177	return i;	2022	return i;
2178	}	2023
2179	return -1;	2024	return -1;
2180	}	2025	}
2181		2026
2182	/*	2027	/*
2183	* The function permute(arr, begin, end) randomly reorders the array	2028	* The function permute(arr, begin, end) randomly reorders the array
2184	* arr[begin..end-1].	2029	* arr[begin..end-1].
		2030	* now uses a fisher-yates shuffle, old permute was broken
2185	*/	2031	*/
2186	static void	2032	static void
2187	permute (int *arr, int begin, int end)	2033	permute (int *arr, int begin, int end)
2188	{	2034	{
2189	int	2035	arr += begin;
2190	i,
2191	j,
2192	tmp,
2193	len;
2194
2195	len = end - begin;	2036	end -= begin;
2196	for (i = begin; i < end; i++)
2197	{
2198	j = begin + RANDOM () % len;
2199		2037
2200	tmp = arr[i];	2038	while (--end)
2201	arr[i] = arr[j];	2039	swap (arr [end], arr [RANDOM () % (end + 1)]);
2202	arr[j] = tmp;
2203	}
2204	}	2040	}
2205		2041
2206	/* new function to make monster searching more efficient, and effective!	2042	/* new function to make monster searching more efficient, and effective!
2207	* This basically returns a randomized array (in the passed pointer) of	2043	* This basically returns a randomized array (in the passed pointer) of
2208	* the spaces to find monsters. In this way, it won't always look for	2044	* the spaces to find monsters. In this way, it won't always look for
…		…
2211	* the 3x3 area will be searched, just not in a predictable order.	2047	* the 3x3 area will be searched, just not in a predictable order.
2212	*/	2048	*/
2213	void	2049	void
2214	get_search_arr (int *search_arr)	2050	get_search_arr (int *search_arr)
2215	{	2051	{
2216	int	2052	int i;
2217	i;
2218		2053
2219	for (i = 0; i < SIZEOFFREE; i++)	2054	for (i = 0; i < SIZEOFFREE; i++)
2220	{
2221	search_arr[i] = i;	2055	search_arr[i] = i;
2222	}
2223		2056
2224	permute (search_arr, 1, SIZEOFFREE1 + 1);	2057	permute (search_arr, 1, SIZEOFFREE1 + 1);
2225	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2058	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2226	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2059	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2227	}	2060	}
…		…
2236	* Perhaps incorrectly, but I'm making the assumption that exclude	2069	* Perhaps incorrectly, but I'm making the assumption that exclude
2237	* is actually want is going to try and move there. We need this info	2070	* is actually want is going to try and move there. We need this info
2238	* because we have to know what movement the thing looking to move	2071	* because we have to know what movement the thing looking to move
2239	* there is capable of.	2072	* there is capable of.
2240	*/	2073	*/
2241
2242	int	2074	int
2243	find_dir (maptile *m, int x, int y, object *exclude)	2075	find_dir (maptile *m, int x, int y, object *exclude)
2244	{	2076	{
2245	int
2246	i,
2247	max = SIZEOFFREE, mflags;	2077	int i, max = SIZEOFFREE, mflags;
2248		2078
2249	sint16 nx, ny;	2079	sint16 nx, ny;
2250	object *	2080	object *tmp;
2251	tmp;
2252	maptile *	2081	maptile *mp;
2253	mp;
2254		2082
2255	MoveType blocked, move_type;	2083	MoveType blocked, move_type;
2256		2084
2257	if (exclude && exclude->head)	2085	if (exclude && exclude->head)
2258	{	2086	{
…		…
2270	mp = m;	2098	mp = m;
2271	nx = x + freearr_x[i];	2099	nx = x + freearr_x[i];
2272	ny = y + freearr_y[i];	2100	ny = y + freearr_y[i];
2273		2101
2274	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2102	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2103
2275	if (mflags & P_OUT_OF_MAP)	2104	if (mflags & P_OUT_OF_MAP)
2276	{
2277	max = maxfree[i];	2105	max = maxfree[i];
2278	}
2279	else	2106	else
2280	{	2107	{
2281	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2108	mapspace &ms = mp->at (nx, ny);
		2109
		2110	blocked = ms.move_block;
2282		2111
2283	if ((move_type & blocked) == move_type)	2112	if ((move_type & blocked) == move_type)
2284	{
2285	max = maxfree[i];	2113	max = maxfree[i];
2286	}
2287	else if (mflags & P_IS_ALIVE)	2114	else if (mflags & P_IS_ALIVE)
2288	{	2115	{
2289	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2116	for (tmp = ms.bot; tmp; tmp = tmp->above)
2290	{	2117	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2291	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2118	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2292	{
2293	break;	2119	break;
2294	}	2120
2295	}
2296	if (tmp)	2121	if (tmp)
2297	{
2298	return freedir[i];	2122	return freedir[i];
2299	}
2300	}	2123	}
2301	}	2124	}
2302	}	2125	}
		2126
2303	return 0;	2127	return 0;
2304	}	2128	}
2305		2129
2306	/*	2130	/*
2307	* distance(object 1, object 2) will return the square of the	2131	* distance(object 1, object 2) will return the square of the
2308	* distance between the two given objects.	2132	* distance between the two given objects.
2309	*/	2133	*/
2310
2311	int	2134	int
2312	distance (const object *ob1, const object *ob2)	2135	distance (const object *ob1, const object *ob2)
2313	{	2136	{
2314	int
2315	i;
2316
2317	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2137	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2318	return i;
2319	}	2138	}
2320		2139
2321	/*	2140	/*
2322	* find_dir_2(delta-x,delta-y) will return a direction in which	2141	* find_dir_2(delta-x,delta-y) will return a direction in which
2323	* an object which has subtracted the x and y coordinates of another	2142	* an object which has subtracted the x and y coordinates of another
2324	* object, needs to travel toward it.	2143	* object, needs to travel toward it.
2325	*/	2144	*/
2326
2327	int	2145	int
2328	find_dir_2 (int x, int y)	2146	find_dir_2 (int x, int y)
2329	{	2147	{
2330	int	2148	int q;
2331	q;
2332		2149
2333	if (y)	2150	if (y)
2334	q = x * 100 / y;	2151	q = x * 100 / y;
2335	else if (x)	2152	else if (x)
2336	q = -300 * x;	2153	q = -300 * x;
…		…
2371	int	2188	int
2372	absdir (int d)	2189	absdir (int d)
2373	{	2190	{
2374	while (d < 1)	2191	while (d < 1)
2375	d += 8;	2192	d += 8;
		2193
2376	while (d > 8)	2194	while (d > 8)
2377	d -= 8;	2195	d -= 8;
		2196
2378	return d;	2197	return d;
2379	}	2198	}
2380		2199
2381	/*	2200	/*
2382	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2201	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
…		…
2384	*/	2203	*/
2385		2204
2386	int	2205	int
2387	dirdiff (int dir1, int dir2)	2206	dirdiff (int dir1, int dir2)
2388	{	2207	{
2389	int	2208	int d;
2390	d;
2391		2209
2392	d = abs (dir1 - dir2);	2210	d = abs (dir1 - dir2);
2393	if (d > 4)	2211	if (d > 4)
2394	d = 8 - d;	2212	d = 8 - d;
		2213
2395	return d;	2214	return d;
2396	}	2215	}
2397		2216
2398	/* peterm:	2217	/* peterm:
2399	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2218	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2402	* This basically means that if direction is 15, then it could either go	2221	* This basically means that if direction is 15, then it could either go
2403	* direction 4, 14, or 16 to get back to where we are.	2222	* direction 4, 14, or 16 to get back to where we are.
2404	* Moved from spell_util.c to object.c with the other related direction	2223	* Moved from spell_util.c to object.c with the other related direction
2405	* functions.	2224	* functions.
2406	*/	2225	*/
2407
2408	int
2409	reduction_dir[SIZEOFFREE][3] = {	2226	int reduction_dir[SIZEOFFREE][3] = {
2410	{0, 0, 0}, /* 0 */	2227	{0, 0, 0}, /* 0 */
2411	{0, 0, 0}, /* 1 */	2228	{0, 0, 0}, /* 1 */
2412	{0, 0, 0}, /* 2 */	2229	{0, 0, 0}, /* 2 */
2413	{0, 0, 0}, /* 3 */	2230	{0, 0, 0}, /* 3 */
2414	{0, 0, 0}, /* 4 */	2231	{0, 0, 0}, /* 4 */
…		…
2462	* find a path to that monster that we found. If not,	2279	* find a path to that monster that we found. If not,
2463	* we don't bother going toward it. Returns 1 if we	2280	* we don't bother going toward it. Returns 1 if we
2464	* can see a direct way to get it	2281	* can see a direct way to get it
2465	* Modified to be map tile aware -.MSW	2282	* Modified to be map tile aware -.MSW
2466	*/	2283	*/
2467
2468
2469	int	2284	int
2470	can_see_monsterP (maptile *m, int x, int y, int dir)	2285	can_see_monsterP (maptile *m, int x, int y, int dir)
2471	{	2286	{
2472	sint16 dx, dy;	2287	sint16 dx, dy;
2473	int
2474	mflags;	2288	int mflags;
2475		2289
2476	if (dir < 0)	2290	if (dir < 0)
2477	return 0; /* exit condition: invalid direction */	2291	return 0; /* exit condition: invalid direction */
2478		2292
2479	dx = x + freearr_x[dir];	2293	dx = x + freearr_x[dir];
…		…
2492	return 0;	2306	return 0;
2493		2307
2494	/* yes, can see. */	2308	/* yes, can see. */
2495	if (dir < 9)	2309	if (dir < 9)
2496	return 1;	2310	return 1;
		2311
2497	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2312	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2498	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2313	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2314	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2499	}	2315	}
2500
2501
2502		2316
2503	/*	2317	/*
2504	* can_pick(picker, item): finds out if an object is possible to be	2318	* can_pick(picker, item): finds out if an object is possible to be
2505	* picked up by the picker. Returnes 1 if it can be	2319	* picked up by the picker. Returnes 1 if it can be
2506	* picked up, otherwise 0.	2320	* picked up, otherwise 0.
…		…
2517	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2331	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2518	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2332	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2519	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2333	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2520	}	2334	}
2521		2335
2522
2523	/*	2336	/*
2524	* create clone from object to another	2337	* create clone from object to another
2525	*/	2338	*/
2526	object *	2339	object *
2527	object_create_clone (object *asrc)	2340	object_create_clone (object *asrc)
…		…
2536	src = src->head;	2349	src = src->head;
2537		2350
2538	prev = 0;	2351	prev = 0;
2539	for (part = src; part; part = part->more)	2352	for (part = src; part; part = part->more)
2540	{	2353	{
2541	tmp = get_object ();	2354	tmp = part->clone ();
2542	copy_object (part, tmp);
2543	tmp->x -= src->x;	2355	tmp->x -= src->x;
2544	tmp->y -= src->y;	2356	tmp->y -= src->y;
2545		2357
2546	if (!part->head)	2358	if (!part->head)
2547	{	2359	{
2548	dst = tmp;	2360	dst = tmp;
2549	tmp->head = 0;	2361	tmp->head = 0;
2550	}	2362	}
2551	else	2363	else
2552	{
2553	tmp->head = dst;	2364	tmp->head = dst;
2554	}
2555		2365
2556	tmp->more = 0;	2366	tmp->more = 0;
2557		2367
2558	if (prev)	2368	if (prev)
2559	prev->more = tmp;	2369	prev->more = tmp;
…		…
2571	/* Basically, we save the content of the string to a temp file, then call */	2381	/* Basically, we save the content of the string to a temp file, then call */
2572	/* load_object on it. I admit it is a highly inefficient way to make things, */	2382	/* load_object on it. I admit it is a highly inefficient way to make things, */
2573	/* but it was simple to make and allows reusing the load_object function. */	2383	/* but it was simple to make and allows reusing the load_object function. */
2574	/* Remember not to use load_object_str in a time-critical situation. */	2384	/* Remember not to use load_object_str in a time-critical situation. */
2575	/* Also remember that multiparts objects are not supported for now. */	2385	/* Also remember that multiparts objects are not supported for now. */
2576
2577	object *	2386	object *
2578	load_object_str (const char *obstr)	2387	load_object_str (const char *obstr)
2579	{	2388	{
2580	object *op;	2389	object *op;
2581	char filename[MAX_BUF];	2390	char filename[MAX_BUF];
…		…
2591	}	2400	}
2592		2401
2593	fprintf (tempfile, obstr);	2402	fprintf (tempfile, obstr);
2594	fclose (tempfile);	2403	fclose (tempfile);
2595		2404
2596	op = get_object ();	2405	op = object::create ();
2597		2406
2598	object_thawer thawer (filename);	2407	object_thawer thawer (filename);
2599		2408
2600	if (thawer)	2409	if (thawer)
2601	load_object (thawer, op, 0);	2410	load_object (thawer, op, 0);
…		…
2611	* returns NULL if no match.	2420	* returns NULL if no match.
2612	*/	2421	*/
2613	object *	2422	object *
2614	find_obj_by_type_subtype (const object *who, int type, int subtype)	2423	find_obj_by_type_subtype (const object *who, int type, int subtype)
2615	{	2424	{
2616	object *tmp;
2617
2618	for (tmp = who->inv; tmp; tmp = tmp->below)	2425	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2619	if (tmp->type == type && tmp->subtype == subtype)	2426	if (tmp->type == type && tmp->subtype == subtype)
2620	return tmp;	2427	return tmp;
2621		2428
2622	return NULL;	2429	return 0;
2623	}	2430	}
2624		2431
2625	/* If ob has a field named key, return the link from the list,	2432	/* If ob has a field named key, return the link from the list,
2626	* otherwise return NULL.	2433	* otherwise return NULL.
2627	*	2434	*
…		…
2629	* do the desired thing.	2436	* do the desired thing.
2630	*/	2437	*/
2631	key_value *	2438	key_value *
2632	get_ob_key_link (const object *ob, const char *key)	2439	get_ob_key_link (const object *ob, const char *key)
2633	{	2440	{
2634	key_value *link;
2635
2636	for (link = ob->key_values; link != NULL; link = link->next)	2441	for (key_value *link = ob->key_values; link; link = link->next)
2637	if (link->key == key)	2442	if (link->key == key)
2638	return link;	2443	return link;
2639		2444
2640	return NULL;	2445	return 0;
2641	}	2446	}
2642		2447
2643	/*	2448	/*
2644	* Returns the value of op has an extra_field for key, or NULL.	2449	* Returns the value of op has an extra_field for key, or NULL.
2645	*	2450	*
…		…
2685	* Returns TRUE on success.	2490	* Returns TRUE on success.
2686	*/	2491	*/
2687	int	2492	int
2688	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)	2493	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2689	{	2494	{
2690	key_value *
2691	field = NULL, *last = NULL;	2495	key_value *field = NULL, *last = NULL;
2692		2496
2693	for (field = op->key_values; field != NULL; field = field->next)	2497	for (field = op->key_values; field != NULL; field = field->next)
2694	{	2498	{
2695	if (field->key != canonical_key)	2499	if (field->key != canonical_key)
2696	{	2500	{
…		…
2724	/* IF we get here, key doesn't exist */	2528	/* IF we get here, key doesn't exist */
2725		2529
2726	/* No field, we'll have to add it. */	2530	/* No field, we'll have to add it. */
2727		2531
2728	if (!add_key)	2532	if (!add_key)
2729	{
2730	return FALSE;	2533	return FALSE;
2731	}	2534
2732	/* There isn't any good reason to store a null	2535	/* There isn't any good reason to store a null
2733	* value in the key/value list. If the archetype has	2536	* value in the key/value list. If the archetype has
2734	* this key, then we should also have it, so shouldn't	2537	* this key, then we should also have it, so shouldn't
2735	* be here. If user wants to store empty strings,	2538	* be here. If user wants to store empty strings,
2736	* should pass in ""	2539	* should pass in ""

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