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Comparing deliantra/server/common/object.C (file contents):
Revision 1.68 by root, Mon Dec 18 02:35:00 2006 UTC vs.
Revision 1.107 by pippijn, Sat Jan 6 14:42:29 2007 UTC

1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	CrossFire, A Multiplayer game for X-windows
3		3
		4	Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
4	Copyright (C) 2001 Mark Wedel & Crossfire Development Team	5	Copyright (C) 2001 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	Copyright (C) 1992 Frank Tore Johansen
6		7
7	This program is free software; you can redistribute it and/or modify	8	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	it under the terms of the GNU General Public License as published by
…		…
141	* objects with lists are rare, and lists stay short. If not, use a	142	* objects with lists are rare, and lists stay short. If not, use a
142	* different structure or at least keep the lists sorted...	143	* different structure or at least keep the lists sorted...
143	*/	144	*/
144		145
145	/* For each field in wants, */	146	/* For each field in wants, */
146	for (wants_field = wants->key_values; wants_field != NULL; wants_field = wants_field->next)	147	for (wants_field = wants->key_values; wants_field; wants_field = wants_field->next)
147	{	148	{
148	key_value *has_field;	149	key_value *has_field;
149		150
150	/* Look for a field in has with the same key. */	151	/* Look for a field in has with the same key. */
151	has_field = get_ob_key_link (has, wants_field->key);	152	has_field = get_ob_key_link (has, wants_field->key);
…		…
190	* Check nrof variable *before* calling can_merge()	191	* Check nrof variable *before* calling can_merge()
191	*	192	*
192	* Improvements made with merge: Better checking on potion, and also	193	* Improvements made with merge: Better checking on potion, and also
193	* check weight	194	* check weight
194	*/	195	*/
195
196	bool object::can_merge_slow (object *ob1, object *ob2)	196	bool object::can_merge_slow (object *ob1, object *ob2)
197	{	197	{
198	/* A couple quicksanity checks */	198	/* A couple quicksanity checks */
199	if (ob1 == ob2	199	if (ob1 == ob2
200	|| ob1->type != ob2->type	200	|| ob1->type != ob2->type
…		…
221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);	221	SET_FLAG (ob1, FLAG_BEEN_APPLIED);
222		222
223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))	223	if (QUERY_FLAG (ob2, FLAG_IDENTIFIED))
224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);	224	SET_FLAG (ob2, FLAG_BEEN_APPLIED);
225		225
226
227	if ((ob1->flags ^ ob2->flags).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()	226	if ((ob1->flag ^ ob2->flag).reset (FLAG_INV_LOCKED).reset (FLAG_CLIENT_SENT).any ()
228	|| ob1->arch != ob2->arch	227	|| ob1->arch != ob2->arch
229	|| ob1->name != ob2->name	228	|| ob1->name != ob2->name
230	|| ob1->title != ob2->title	229	|| ob1->title != ob2->title
231	|| ob1->msg != ob2->msg	230	|| ob1->msg != ob2->msg
232	|| ob1->weight != ob2->weight	231	|| ob1->weight != ob2->weight
…		…
278		277
279	/* 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
280	* 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
281	* check?	280	* check?
282	*/	281	*/
283	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && FABS ((ob1)->speed) > MIN_ACTIVE_SPEED)	282	if (!QUERY_FLAG (ob1, FLAG_ANIMATE) && ob1->has_active_speed ())
284	return 0;	283	return 0;
285		284
286	switch (ob1->type)	285	switch (ob1->type)
287	{	286	{
288	case SCROLL:	287	case SCROLL:
…		…
353	op = op->env;	352	op = op->env;
354	return op;	353	return op;
355	}	354	}
356		355
357	/*	356	/*
358	* Eneq(@csd.uu.se): Since we can have items buried in a character we need
359	* a better check. We basically keeping traversing up until we can't
360	* or find a player.
361	*/
362
363	object *
364	is_player_inv (object *op)
365	{
366	for (; op != NULL && op->type != PLAYER; op = op->env)
367	if (op->env == op)
368	op->env = NULL;
369	return op;
370	}
371
372	/*
373	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.	357	* Used by: Crossedit: dump. Server DM commands: dumpbelow, dump.
374	* Some error messages.	358	* Some error messages.
375	* 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.
376	*/	360	*/
377		361
…		…
380	{	364	{
381	if (!op)	365	if (!op)
382	return strdup ("[NULLOBJ]");	366	return strdup ("[NULLOBJ]");
383		367
384	object_freezer freezer;	368	object_freezer freezer;
385	save_object (freezer, op, 3);	369	save_object (freezer, op, 1);
386	return freezer.as_string ();	370	return freezer.as_string ();
387	}	371	}
388		372
389	/*	373	/*
390	* 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
…		…
483	}	467	}
484		468
485	op->key_values = 0;	469	op->key_values = 0;
486	}	470	}
487		471
488	void object::clear ()
489	{
490	attachable_base::clear ();
491
492	free_key_values (this);
493
494	owner = 0;
495	name = 0;
496	name_pl = 0;
497	title = 0;
498	race = 0;
499	slaying = 0;
500	skill = 0;
501	msg = 0;
502	lore = 0;
503	custom_name = 0;
504	materialname = 0;
505	contr = 0;
506	below = 0;
507	above = 0;
508	inv = 0;
509	container = 0;
510	env = 0;
511	more = 0;
512	head = 0;
513	map = 0;
514	active_next = 0;
515	active_prev = 0;
516
517	memset (static_cast<object_pod *>(this), 0, sizeof (object_pod));
518
519	SET_FLAG (this, FLAG_REMOVED);
520
521	/* What is not cleared is next, prev, and count */
522
523	expmul = 1.0;
524	face = blank_face;
525
526	if (settings.casting_time)
527	casting_time = -1;
528	}
529
530	/*	472	/*
531	* copy_to first frees everything allocated by the dst object,	473	* copy_to first frees everything allocated by the dst object,
532	* and then copies the contents of itself into the second	474	* and then copies the contents of itself into the second
533	* object, allocating what needs to be allocated. Basically, any	475	* object, allocating what needs to be allocated. Basically, any
534	* 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,
…		…
540	{	482	{
541	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);	483	bool is_freed = QUERY_FLAG (dst, FLAG_FREED);
542	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);	484	bool is_removed = QUERY_FLAG (dst, FLAG_REMOVED);
543		485
544	*(object_copy *)dst = *this;	486	*(object_copy *)dst = *this;
545	*(object_pod *)dst = *this;
546
547	if (self || cb)
548	INVOKE_OBJECT (CLONE, this, ARG_OBJECT (dst));
549		487
550	if (is_freed)	488	if (is_freed)
551	SET_FLAG (dst, FLAG_FREED);	489	SET_FLAG (dst, FLAG_FREED);
552		490
553	if (is_removed)	491	if (is_removed)
…		…
584	tail = new_link;	522	tail = new_link;
585	}	523	}
586	}	524	}
587	}	525	}
588		526
589	update_ob_speed (dst);	527	dst->set_speed (dst->speed);
590	}	528	}
591		529
592	object *	530	object *
593	object::clone ()	531	object::clone ()
594	{	532	{
…		…
600	/*	538	/*
601	* 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
602	* 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
603	* 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.
604	*/	542	*/
605
606	void	543	void
607	update_turn_face (object *op)	544	update_turn_face (object *op)
608	{	545	{
609	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || op->arch == NULL)	546	if (!QUERY_FLAG (op, FLAG_IS_TURNABLE) || !op->arch)
610	return;	547	return;
		548
611	SET_ANIMATION (op, op->direction);	549	SET_ANIMATION (op, op->direction);
612	update_object (op, UP_OBJ_FACE);	550	update_object (op, UP_OBJ_FACE);
613	}	551	}
614		552
615	/*	553	/*
616	* 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
617	* 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.
618	* 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.
619	*/	557	*/
620	void	558	void
621	update_ob_speed (object *op)	559	object::set_speed (float speed)
622	{	560	{
623	extern int arch_init;	561	if (flag [FLAG_FREED] && speed)
624
625	/* No reason putting the archetypes objects on the speed list,
626	* since they never really need to be updated.
627	*/
628
629	if (QUERY_FLAG (op, FLAG_FREED) && op->speed)
630	{	562	{
631	LOG (llevError, "Object %s is freed but has speed.\n", &op->name);	563	LOG (llevError, "Object %s is freed but has speed.\n", &name);
632	#ifdef MANY_CORES
633	abort ();
634	#else
635	op->speed = 0;	564	speed = 0;
636	#endif
637	}
638
639	if (arch_init)
640	return;
641
642	if (FABS (op->speed) > MIN_ACTIVE_SPEED)
643	{	565	}
644	/* If already on active list, don't do anything */
645	if (op->active_next || op->active_prev || op == active_objects)
646	return;
647		566
648	/* process_events() expects us to insert the object at the beginning	567	this->speed = speed;
649	* of the list. */
650	op->active_next = active_objects;
651		568
652	if (op->active_next != NULL)	569	if (has_active_speed ())
653	op->active_next->active_prev = op;	570	activate ();
654
655	active_objects = op;
656	}
657	else	571	else
658	{	572	deactivate ();
659	/* If not on the active list, nothing needs to be done */
660	if (!op->active_next && !op->active_prev && op != active_objects)
661	return;
662
663	if (op->active_prev == NULL)
664	{
665	active_objects = op->active_next;
666
667	if (op->active_next != NULL)
668	op->active_next->active_prev = NULL;
669	}
670	else
671	{
672	op->active_prev->active_next = op->active_next;
673
674	if (op->active_next)
675	op->active_next->active_prev = op->active_prev;
676	}
677
678	op->active_next = NULL;
679	op->active_prev = NULL;
680	}
681	}	573	}
682		574
683	/* This function removes object 'op' from the list of active
684	* objects.
685	* This should only be used for style maps or other such
686	* reference maps where you don't want an object that isn't
687	* in play chewing up cpu time getting processed.
688	* The reverse of this is to call update_ob_speed, which
689	* will do the right thing based on the speed of the object.
690	*/
691	void
692	remove_from_active_list (object *op)
693	{
694	/* If not on the active list, nothing needs to be done */
695	if (!op->active_next && !op->active_prev && op != active_objects)
696	return;
697
698	if (op->active_prev == NULL)
699	{
700	active_objects = op->active_next;
701	if (op->active_next != NULL)
702	op->active_next->active_prev = NULL;
703	}
704	else
705	{
706	op->active_prev->active_next = op->active_next;
707	if (op->active_next)
708	op->active_next->active_prev = op->active_prev;
709	}
710	op->active_next = NULL;
711	op->active_prev = NULL;
712	}
713
714	/*	575	/*
715	* update_object() updates the array which represents the map.	576	* update_object() updates the the map.
716	* It takes into account invisible objects (and represent squares covered	577	* It takes into account invisible objects (and represent squares covered
717	* by invisible objects by whatever is below them (unless it's another	578	* by invisible objects by whatever is below them (unless it's another
718	* invisible object, etc...)	579	* invisible object, etc...)
719	* If the object being updated is beneath a player, the look-window	580	* If the object being updated is beneath a player, the look-window
720	* of that player is updated (this might be a suboptimal way of	581	* of that player is updated (this might be a suboptimal way of
721	* updating that window, though, since update_object() is called _often_)	582	* updating that window, though, since update_object() is called _often_)
722	*	583	*
723	* action is a hint of what the caller believes need to be done.	584	* action is a hint of what the caller believes need to be done.
724	* For example, if the only thing that has changed is the face (due to
725	* an animation), we don't need to call update_position until that actually
726	* comes into view of a player. OTOH, many other things, like addition/removal
727	* of walls or living creatures may need us to update the flags now.
728	* current action are:	585	* current action are:
729	* UP_OBJ_INSERT: op was inserted	586	* UP_OBJ_INSERT: op was inserted
730	* UP_OBJ_REMOVE: op was removed	587	* UP_OBJ_REMOVE: op was removed
731	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update	588	* UP_OBJ_CHANGE: object has somehow changed. In this case, we always update
732	* as that is easier than trying to look at what may have changed.	589	* as that is easier than trying to look at what may have changed.
733	* UP_OBJ_FACE: only the objects face has changed.	590	* UP_OBJ_FACE: only the objects face has changed.
734	*/	591	*/
735
736	void	592	void
737	update_object (object *op, int action)	593	update_object (object *op, int action)
738	{	594	{
739	int update_now = 0, flags;
740	MoveType move_on, move_off, move_block, move_slow;	595	MoveType move_on, move_off, move_block, move_slow;
741		596
742	if (op == NULL)	597	if (op == NULL)
743	{	598	{
744	/* this should never happen */	599	/* this should never happen */
745	LOG (llevDebug, "update_object() called for NULL object.\n");	600	LOG (llevDebug, "update_object() called for NULL object.\n");
746	return;	601	return;
747	}	602	}
748		603
749	if (op->env != NULL)	604	if (op->env)
750	{	605	{
751	/* Animation is currently handled by client, so nothing	606	/* Animation is currently handled by client, so nothing
752	* to do in this case.	607	* to do in this case.
753	*/	608	*/
754	return;	609	return;
…		…
759	*/	614	*/
760	if (!op->map || op->map->in_memory == MAP_SAVING)	615	if (!op->map || op->map->in_memory == MAP_SAVING)
761	return;	616	return;
762		617
763	/* make sure the object is within map boundaries */	618	/* make sure the object is within map boundaries */
764	if (op->x < 0 || op->x >= MAP_WIDTH (op->map) || op->y < 0 || op->y >= MAP_HEIGHT (op->map))	619	if (op->x < 0 || op->x >= op->map->width || op->y < 0 || op->y >= op->map->height)
765	{	620	{
766	LOG (llevError, "update_object() called for object out of map!\n");	621	LOG (llevError, "update_object() called for object out of map!\n");
767	#ifdef MANY_CORES	622	#ifdef MANY_CORES
768	abort ();	623	abort ();
769	#endif	624	#endif
770	return;	625	return;
771	}	626	}
772		627
773	flags = GET_MAP_FLAGS (op->map, op->x, op->y);	628	mapspace &m = op->ms ();
774	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NEED_UPDATE);
775	move_slow = GET_MAP_MOVE_SLOW (op->map, op->x, op->y);
776	move_on = GET_MAP_MOVE_ON (op->map, op->x, op->y);
777	move_block = GET_MAP_MOVE_BLOCK (op->map, op->x, op->y);
778	move_off = GET_MAP_MOVE_OFF (op->map, op->x, op->y);
779		629
		630	if (!(m.flags_ & P_UPTODATE))
		631	/* nop */;
780	if (action == UP_OBJ_INSERT)	632	else if (action == UP_OBJ_INSERT)
781	{	633	{
		634	// this is likely overkill, TODO: revisit (schmorp)
782	if (QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(flags & P_BLOCKSVIEW))	635	if ((QUERY_FLAG (op, FLAG_BLOCKSVIEW) && !(m.flags_ & P_BLOCKSVIEW))
783	update_now = 1;
784
785	if (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(flags & P_NO_MAGIC))	636	|| (QUERY_FLAG (op, FLAG_NO_MAGIC) && !(m.flags_ & P_NO_MAGIC))
786	update_now = 1;	637	|| (op->type == PLAYER && !(m.flags_ & P_PLAYER))
787		638	|| (op->type == SAFE_GROUND && !(m.flags_ & P_SAFE))
		639	|| (QUERY_FLAG (op, FLAG_ALIVE) && !(m.flags_ & P_IS_ALIVE))
788	if (QUERY_FLAG (op, FLAG_DAMNED) && !(flags & P_NO_CLERIC))	640	|| (QUERY_FLAG (op, FLAG_DAMNED) && !(m.flags_ & P_NO_CLERIC))
789	update_now = 1;
790
791	if (QUERY_FLAG (op, FLAG_ALIVE) && !(flags & P_IS_ALIVE))
792	update_now = 1;
793
794	if (op->type == SAFE_GROUND && !(flags & P_SAFE))
795	update_now = 1;
796
797	if ((move_on | op->move_on) != move_on)	641	|| (m.move_on | op->move_on ) != m.move_on
798	update_now = 1;
799
800	if ((move_off | op->move_off) != move_off)	642	|| (m.move_off | op->move_off ) != m.move_off
801	update_now = 1;	643	|| (m.move_slow | op->move_slow) != m.move_slow
802
803	/* This isn't perfect, but I don't expect a lot of objects to	644	/* This isn't perfect, but I don't expect a lot of objects to
804	* to have move_allow right now.	645	* to have move_allow right now.
805	*/	646	*/
806	if (((move_block | op->move_block) & ~op->move_allow) != move_block)	647	|| ((m.move_block | op->move_block) & ~op->move_allow) != m.move_block
807	update_now = 1;	648	|| 1) // the above is not strong enough a test to skip updating. los maybe? TODO (Schmorp)
808		649	m.flags_ = 0;
809	if ((move_slow | op->move_slow) != move_slow)
810	update_now = 1;
811	}	650	}
812
813	/* if the object is being removed, we can't make intelligent	651	/* if the object is being removed, we can't make intelligent
814	* decisions, because remove_ob can't really pass the object	652	* decisions, because remove_ob can't really pass the object
815	* that is being removed.	653	* that is being removed.
816	*/	654	*/
817	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)	655	else if (action == UP_OBJ_CHANGE || action == UP_OBJ_REMOVE)
818	update_now = 1;	656	m.flags_ = 0;
819	else if (action == UP_OBJ_FACE)	657	else if (action == UP_OBJ_FACE)
820	/* Nothing to do for that case */ ;	658	/* Nothing to do for that case */ ;
821	else	659	else
822	LOG (llevError, "update_object called with invalid action: %d\n", action);	660	LOG (llevError, "update_object called with invalid action: %d\n", action);
823		661
824	if (update_now)
825	{
826	SET_MAP_FLAGS (op->map, op->x, op->y, flags | P_NO_ERROR | P_NEED_UPDATE);
827	update_position (op->map, op->x, op->y);
828	}
829
830	if (op->more != NULL)	662	if (op->more)
831	update_object (op->more, action);	663	update_object (op->more, action);
832	}	664	}
833		665
834	object::vector object::mortals;
835	object::vector object::objects; // not yet used
836	object *object::first;	666	object *object::first;
837
838	void object::free_mortals ()
839	{
840	for (AUTODECL (i, mortals.begin ()); i != mortals.end ();)
841	if ((*i)->refcnt)
842	++i; // further delay freeing
843	else
844	{
845	delete *i;
846	mortals.erase (i);
847	}
848	}
849		667
850	object::object ()	668	object::object ()
851	{	669	{
852	SET_FLAG (this, FLAG_REMOVED);	670	SET_FLAG (this, FLAG_REMOVED);
853		671
…		…
885		703
886	prev = 0;	704	prev = 0;
887	next = 0;	705	next = 0;
888	}	706	}
889		707
		708	bool
		709	object::active () const
		710	{
		711	return active_next || active_prev || this == active_objects;
		712	}
		713
		714	void
		715	object::activate ()
		716	{
		717	/* If already on active list, don't do anything */
		718	if (active ())
		719	return;
		720
		721	if (has_active_speed ())
		722	{
		723	/* process_events() expects us to insert the object at the beginning
		724	* of the list. */
		725	active_next = active_objects;
		726
		727	if (active_next)
		728	active_next->active_prev = this;
		729
		730	active_objects = this;
		731	}
		732	}
		733
		734	void
		735	object::activate_recursive ()
		736	{
		737	activate ();
		738
		739	for (object *op = inv; op; op = op->below)
		740	op->activate_recursive ();
		741	}
		742
		743	/* This function removes object 'op' from the list of active
		744	* objects.
		745	* This should only be used for style maps or other such
		746	* reference maps where you don't want an object that isn't
		747	* in play chewing up cpu time getting processed.
		748	* The reverse of this is to call update_ob_speed, which
		749	* will do the right thing based on the speed of the object.
		750	*/
		751	void
		752	object::deactivate ()
		753	{
		754	/* If not on the active list, nothing needs to be done */
		755	if (!active ())
		756	return;
		757
		758	if (active_prev == 0)
		759	{
		760	active_objects = active_next;
		761	if (active_next)
		762	active_next->active_prev = 0;
		763	}
		764	else
		765	{
		766	active_prev->active_next = active_next;
		767	if (active_next)
		768	active_next->active_prev = active_prev;
		769	}
		770
		771	active_next = 0;
		772	active_prev = 0;
		773	}
		774
		775	void
		776	object::deactivate_recursive ()
		777	{
		778	for (object *op = inv; op; op = op->below)
		779	op->deactivate_recursive ();
		780
		781	deactivate ();
		782	}
		783
		784	void
		785	object::set_flag_inv (int flag, int value)
		786	{
		787	for (object *op = inv; op; op = op->below)
		788	{
		789	op->flag [flag] = value;
		790	op->set_flag_inv (flag, value);
		791	}
		792	}
		793
		794	/*
		795	* Remove and free all objects in the inventory of the given object.
		796	* object.c ?
		797	*/
		798	void
		799	object::destroy_inv (bool drop_to_ground)
		800	{
		801	// need to check first, because the checks below might segfault
		802	// as we might be on an invalid mapspace and crossfire code
		803	// is too buggy to ensure that the inventory is empty.
		804	// corollary: if you create arrows etc. with stuff in tis inventory,
		805	// cf will crash below with off-map x and y
		806	if (!inv)
		807	return;
		808
		809	/* Only if the space blocks everything do we not process -
		810	* if some form of movement is allowed, let objects
		811	* drop on that space.
		812	*/
		813	if (!drop_to_ground
		814	|| !map
		815	|| map->in_memory != MAP_IN_MEMORY
		816	|| ms ().move_block == MOVE_ALL)
		817	{
		818	while (inv)
		819	{
		820	inv->destroy_inv (drop_to_ground);
		821	inv->destroy ();
		822	}
		823	}
		824	else
		825	{ /* Put objects in inventory onto this space */
		826	while (inv)
		827	{
		828	object *op = inv;
		829
		830	if (op->flag [FLAG_STARTEQUIP]
		831	|| op->flag [FLAG_NO_DROP]
		832	|| op->type == RUNE
		833	|| op->type == TRAP
		834	|| op->flag [FLAG_IS_A_TEMPLATE])
		835	op->destroy ();
		836	else
		837	map->insert (op, x, y);
		838	}
		839	}
		840	}
		841
890	object *object::create ()	842	object *object::create ()
891	{	843	{
892	object *op = new object;	844	object *op = new object;
893	op->link ();	845	op->link ();
894	return op;	846	return op;
895	}	847	}
896		848
897	/*	849	void
898	* free_object() frees everything allocated by an object, removes	850	object::do_destroy ()
899	* it from the list of used objects, and puts it on the list of
900	* free objects. The IS_FREED() flag is set in the object.
901	* The object must have been removed by remove_ob() first for
902	* this function to succeed.
903	*
904	* If destroy_inventory is set, free inventory as well. Else drop items in
905	* inventory to the ground.
906	*/
907	void object::destroy (bool destroy_inventory)
908	{	851	{
909	if (QUERY_FLAG (this, FLAG_FREED))	852	if (flag [FLAG_IS_LINKED])
		853	remove_button_link (this);
		854
		855	if (flag [FLAG_FRIENDLY])
		856	remove_friendly_object (this);
		857
		858	if (!flag [FLAG_REMOVED])
		859	remove ();
		860
		861	if (flag [FLAG_FREED])
910	return;	862	return;
911		863
912	if (QUERY_FLAG (this, FLAG_FRIENDLY))	864	set_speed (0);
913	remove_friendly_object (this);
914		865
915	if (!QUERY_FLAG (this, FLAG_REMOVED))	866	flag [FLAG_FREED] = 1;
916	remove ();
917		867
918	SET_FLAG (this, FLAG_FREED);	868	attachable::do_destroy ();
919		869
920	if (more)	870	destroy_inv (true);
921	{	871	unlink ();
922	more->destroy (destroy_inventory);
923	more = 0;
924	}
925
926	if (inv)
927	{
928	/* Only if the space blocks everything do we not process -
929	* if some form of movement is allowed, let objects
930	* drop on that space.
931	*/
932	if (destroy_inventory || !map || map->in_memory != MAP_IN_MEMORY || GET_MAP_MOVE_BLOCK (map, x, y) == MOVE_ALL)
933	{
934	object *op = inv;
935
936	while (op)
937	{
938	object *tmp = op->below;
939	op->destroy (destroy_inventory);
940	op = tmp;
941	}
942	}
943	else
944	{ /* Put objects in inventory onto this space */
945	object *op = inv;
946
947	while (op)
948	{
949	object *tmp = op->below;
950
951	op->remove ();
952
953	if (QUERY_FLAG (op, FLAG_STARTEQUIP)
954	|| QUERY_FLAG (op, FLAG_NO_DROP) || op->type == RUNE || op->type == TRAP || QUERY_FLAG (op, FLAG_IS_A_TEMPLATE))
955	op->destroy ();
956	else
957	{
958	op->x = x;
959	op->y = y;
960	insert_ob_in_map (op, map, 0, 0); /* Insert in same map as the envir */
961	}
962
963	op = tmp;
964	}
965	}
966	}
967		872
968	// hack to ensure that freed objects still have a valid map	873	// hack to ensure that freed objects still have a valid map
969	{	874	{
970	static maptile *freed_map; // freed objects are moved here to avoid crashes	875	static maptile *freed_map; // freed objects are moved here to avoid crashes
971		876
…		…
975		880
976	freed_map->name = "/internal/freed_objects_map";	881	freed_map->name = "/internal/freed_objects_map";
977	freed_map->width = 3;	882	freed_map->width = 3;
978	freed_map->height = 3;	883	freed_map->height = 3;
979		884
980	freed_map->allocate ();	885	freed_map->alloc ();
		886	freed_map->in_memory = MAP_IN_MEMORY;
981	}	887	}
982		888
983	map = freed_map;	889	map = freed_map;
984	x = 1;	890	x = 1;
985	y = 1;	891	y = 1;
986	}	892	}
987		893
		894	head = 0;
		895
		896	if (more)
		897	{
		898	more->destroy ();
		899	more = 0;
		900	}
		901
988	// clear those pointers that likely might have circular references to us	902	// clear those pointers that likely might have circular references to us
989	owner = 0;	903	owner = 0;
990	enemy = 0;	904	enemy = 0;
991	attacked_by = 0;	905	attacked_by = 0;
992		906
993	// only relevant for players(?), but make sure of it anyways	907	// only relevant for players(?), but make sure of it anyways
994	contr = 0;	908	contr = 0;
		909	}
995		910
996	/* Remove object from the active list */	911	void
997	speed = 0;	912	object::destroy (bool destroy_inventory)
998	update_ob_speed (this);	913	{
		914	if (destroyed ())
		915	return;
999		916
1000	unlink ();	917	if (destroy_inventory)
		918	destroy_inv (false);
1001		919
1002	mortals.push_back (this);	920	attachable::destroy ();
1003	}	921	}
1004		922
1005	/*	923	/*
1006	* sub_weight() recursively (outwards) subtracts a number from the	924	* sub_weight() recursively (outwards) subtracts a number from the
1007	* weight of an object (and what is carried by it's environment(s)).	925	* weight of an object (and what is carried by it's environment(s)).
…		…
1031	object::remove ()	949	object::remove ()
1032	{	950	{
1033	object *tmp, *last = 0;	951	object *tmp, *last = 0;
1034	object *otmp;	952	object *otmp;
1035		953
1036	int check_walk_off;
1037
1038	if (QUERY_FLAG (this, FLAG_REMOVED))	954	if (QUERY_FLAG (this, FLAG_REMOVED))
1039	return;	955	return;
1040		956
1041	SET_FLAG (this, FLAG_REMOVED);	957	SET_FLAG (this, FLAG_REMOVED);
		958	INVOKE_OBJECT (REMOVE, this);
1042		959
1043	if (more)	960	if (more)
1044	more->remove ();	961	more->remove ();
1045		962
1046	/*	963	/*
…		…
1056		973
1057	/* NO_FIX_PLAYER is set when a great many changes are being	974	/* NO_FIX_PLAYER is set when a great many changes are being
1058	* made to players inventory. If set, avoiding the call	975	* made to players inventory. If set, avoiding the call
1059	* to save cpu time.	976	* to save cpu time.
1060	*/	977	*/
1061	if ((otmp = is_player_inv (env)) != NULL && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	978	if ((otmp = in_player ()) && otmp->contr && !QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1062	fix_player (otmp);	979	otmp->update_stats ();
1063		980
1064	if (above != NULL)	981	if (above)
1065	above->below = below;	982	above->below = below;
1066	else	983	else
1067	env->inv = below;	984	env->inv = below;
1068		985
1069	if (below != NULL)	986	if (below)
1070	below->above = above;	987	below->above = above;
1071		988
1072	/* we set up values so that it could be inserted into	989	/* we set up values so that it could be inserted into
1073	* the map, but we don't actually do that - it is up	990	* the map, but we don't actually do that - it is up
1074	* to the caller to decide what we want to do.	991	* to the caller to decide what we want to do.
…		…
1078	above = 0, below = 0;	995	above = 0, below = 0;
1079	env = 0;	996	env = 0;
1080	}	997	}
1081	else if (map)	998	else if (map)
1082	{	999	{
1083	/* Re did the following section of code - it looks like it had	1000	if (type == PLAYER)
1084	* lots of logic for things we no longer care about
1085	*/	1001	{
		1002	--map->players;
		1003	map->touch ();
		1004	}
		1005
		1006	map->dirty = true;
1086		1007
1087	/* link the object above us */	1008	/* link the object above us */
1088	if (above)	1009	if (above)
1089	above->below = below;	1010	above->below = below;
1090	else	1011	else
1091	SET_MAP_TOP (map, x, y, below); /* we were top, set new top */	1012	map->at (x, y).top = below; /* we were top, set new top */
1092		1013
1093	/* Relink the object below us, if there is one */	1014	/* Relink the object below us, if there is one */
1094	if (below)	1015	if (below)
1095	below->above = above;	1016	below->above = above;
1096	else	1017	else
…		…
1108	dump = dump_object (GET_MAP_OB (map, x, y));	1029	dump = dump_object (GET_MAP_OB (map, x, y));
1109	LOG (llevError, "%s\n", dump);	1030	LOG (llevError, "%s\n", dump);
1110	free (dump);	1031	free (dump);
1111	}	1032	}
1112		1033
1113	SET_MAP_OB (map, x, y, above); /* goes on above it. */	1034	map->at (x, y).bot = above; /* goes on above it. */
1114	}	1035	}
1115		1036
1116	above = 0;	1037	above = 0;
1117	below = 0;	1038	below = 0;
1118		1039
1119	if (map->in_memory == MAP_SAVING)	1040	if (map->in_memory == MAP_SAVING)
1120	return;	1041	return;
1121		1042
1122	check_walk_off = !QUERY_FLAG (this, FLAG_NO_APPLY);	1043	int check_walk_off = !flag [FLAG_NO_APPLY];
1123		1044
1124	for (tmp = GET_MAP_OB (map, x, y); tmp; tmp = tmp->above)	1045	for (tmp = map->at (x, y).bot; tmp; tmp = tmp->above)
1125	{	1046	{
1126	/* No point updating the players look faces if he is the object	1047	/* No point updating the players look faces if he is the object
1127	* being removed.	1048	* being removed.
1128	*/	1049	*/
1129		1050
…		…
1133	* removed (most likely destroyed), update the player view	1054	* removed (most likely destroyed), update the player view
1134	* appropriately.	1055	* appropriately.
1135	*/	1056	*/
1136	if (tmp->container == this)	1057	if (tmp->container == this)
1137	{	1058	{
1138	CLEAR_FLAG (this, FLAG_APPLIED);	1059	flag [FLAG_APPLIED] = 0;
1139	tmp->container = 0;	1060	tmp->container = 0;
1140	}	1061	}
1141		1062
1142	tmp->contr->socket->update_look = 1;	1063	if (tmp->contr->ns)
		1064	tmp->contr->ns->floorbox_update ();
1143	}	1065	}
1144		1066
1145	/* See if player moving off should effect something */	1067	/* See if object moving off should effect something */
1146	if (check_walk_off	1068	if (check_walk_off
1147	&& ((move_type & tmp->move_off)	1069	&& ((move_type & tmp->move_off)
1148	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))	1070	&& (move_type & ~tmp->move_off & ~tmp->move_block) == 0))
1149	{	1071	{
1150	move_apply (tmp, this, 0);	1072	move_apply (tmp, this, 0);
…		…
1152	if (destroyed ())	1074	if (destroyed ())
1153	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());	1075	LOG (llevError, "BUG: remove_ob(): name %s, destroyed leaving object\n", tmp->debug_desc ());
1154	}	1076	}
1155		1077
1156	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */	1078	/* Eneq(@csd.uu.se): Fixed this to skip tmp->above=tmp */
1157		1079	//TODO: why is this horrible hacka fix? get rid of this code=bug! (schmorp)
1158	if (tmp->above == tmp)	1080	if (tmp->above == tmp)
1159	tmp->above = 0;	1081	tmp->above = 0;
1160		1082
1161	last = tmp;	1083	last = tmp;
1162	}	1084	}
1163		1085
1164	/* last == NULL of there are no objects on this space */	1086	/* last == NULL if there are no objects on this space */
		1087	//TODO: this makes little sense, why only update the topmost object?
1165	if (!last)	1088	if (!last)
1166	{	1089	map->at (x, y).flags_ = 0;
1167	/* set P_NEED_UPDATE, otherwise update_position will complain. In theory,
1168	* we could preserve the flags (GET_MAP_FLAGS), but update_position figures
1169	* those out anyways, and if there are any flags set right now, they won't
1170	* be correct anyways.
1171	*/
1172	SET_MAP_FLAGS (map, x, y, P_NEED_UPDATE);
1173	update_position (map, x, y);
1174	}
1175	else	1090	else
1176	update_object (last, UP_OBJ_REMOVE);	1091	update_object (last, UP_OBJ_REMOVE);
1177		1092
1178	if (QUERY_FLAG (this, FLAG_BLOCKSVIEW) || glow_radius)	1093	if (flag [FLAG_BLOCKSVIEW] || glow_radius)
1179	update_all_los (map, x, y);	1094	update_all_los (map, x, y);
1180	}	1095	}
1181	}	1096	}
1182		1097
1183	/*	1098	/*
…		…
1192	merge_ob (object *op, object *top)	1107	merge_ob (object *op, object *top)
1193	{	1108	{
1194	if (!op->nrof)	1109	if (!op->nrof)
1195	return 0;	1110	return 0;
1196		1111
1197	if (top == NULL)	1112	if (top)
1198	for (top = op; top != NULL && top->above != NULL; top = top->above);	1113	for (top = op; top && top->above; top = top->above)
		1114	;
1199		1115
1200	for (; top != NULL; top = top->below)	1116	for (; top; top = top->below)
1201	{	1117	{
1202	if (top == op)	1118	if (top == op)
1203	continue;	1119	continue;
1204		1120
1205	if (object::can_merge (op, top))	1121	if (object::can_merge (op, top))
…		…
1221	* job preparing multi-part monsters	1137	* job preparing multi-part monsters
1222	*/	1138	*/
1223	object *	1139	object *
1224	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)	1140	insert_ob_in_map_at (object *op, maptile *m, object *originator, int flag, int x, int y)
1225	{	1141	{
1226	object *tmp;
1227
1228	if (op->head)
1229	op = op->head;
1230
1231	for (tmp = op; tmp; tmp = tmp->more)	1142	for (object *tmp = op->head_ (); tmp; tmp = tmp->more)
1232	{	1143	{
1233	tmp->x = x + tmp->arch->clone.x;	1144	tmp->x = x + tmp->arch->clone.x;
1234	tmp->y = y + tmp->arch->clone.y;	1145	tmp->y = y + tmp->arch->clone.y;
1235	}	1146	}
1236		1147
…		…
1255	* Return value:	1166	* Return value:
1256	* new object if 'op' was merged with other object	1167	* new object if 'op' was merged with other object
1257	* NULL if 'op' was destroyed	1168	* NULL if 'op' was destroyed
1258	* just 'op' otherwise	1169	* just 'op' otherwise
1259	*/	1170	*/
1260
1261	object *	1171	object *
1262	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)	1172	insert_ob_in_map (object *op, maptile *m, object *originator, int flag)
1263	{	1173	{
1264	object *tmp, *top, *floor = NULL;	1174	object *tmp, *top, *floor = NULL;
1265	sint16 x, y;	1175	sint16 x, y;
…		…
1268	{	1178	{
1269	LOG (llevError, "Trying to insert freed object!\n");	1179	LOG (llevError, "Trying to insert freed object!\n");
1270	return NULL;	1180	return NULL;
1271	}	1181	}
1272		1182
1273	if (m == NULL)	1183	if (!m)
1274	{	1184	{
1275	char *dump = dump_object (op);	1185	char *dump = dump_object (op);
1276	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);	1186	LOG (llevError, "Trying to insert in null-map!\n%s\n", dump);
1277	free (dump);	1187	free (dump);
1278	return op;	1188	return op;
…		…
1299	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);	1209	LOG (llevError, "Trying to insert (map) inserted object.\n%s\n", dump);
1300	free (dump);	1210	free (dump);
1301	return op;	1211	return op;
1302	}	1212	}
1303		1213
1304	if (op->more != NULL)	1214	if (op->more)
1305	{	1215	{
1306	/* The part may be on a different map. */	1216	/* The part may be on a different map. */
1307		1217
1308	object *more = op->more;	1218	object *more = op->more;
1309		1219
1310	/* We really need the caller to normalize coordinates - if	1220	/* We really need the caller to normalise coordinates - if
1311	* we set the map, that doesn't work if the location is within	1221	* we set the map, that doesn't work if the location is within
1312	* a map and this is straddling an edge. So only if coordinate	1222	* a map and this is straddling an edge. So only if coordinate
1313	* is clear wrong do we normalize it.	1223	* is clear wrong do we normalise it.
1314	*/	1224	*/
1315	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))	1225	if (OUT_OF_REAL_MAP (more->map, more->x, more->y))
1316	more->map = get_map_from_coord (m, &more->x, &more->y);	1226	more->map = get_map_from_coord (m, &more->x, &more->y);
1317	else if (!more->map)	1227	else if (!more->map)
1318	{	1228	{
…		…
1325	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)	1235	if (insert_ob_in_map (more, more->map, originator, flag) == NULL)
1326	{	1236	{
1327	if (!op->head)	1237	if (!op->head)
1328	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");	1238	LOG (llevError, "BUG: insert_ob_in_map(): inserting op->more killed op\n");
1329		1239
1330	return NULL;	1240	return 0;
1331	}	1241	}
1332	}	1242	}
1333		1243
1334	CLEAR_FLAG (op, FLAG_REMOVED);	1244	CLEAR_FLAG (op, FLAG_REMOVED);
1335		1245
…		…
1342	y = op->y;	1252	y = op->y;
1343		1253
1344	/* this has to be done after we translate the coordinates.	1254	/* this has to be done after we translate the coordinates.
1345	*/	1255	*/
1346	if (op->nrof && !(flag & INS_NO_MERGE))	1256	if (op->nrof && !(flag & INS_NO_MERGE))
1347	for (tmp = GET_MAP_OB (op->map, x, y); tmp != NULL; tmp = tmp->above)	1257	for (tmp = GET_MAP_OB (op->map, x, y); tmp; tmp = tmp->above)
1348	if (object::can_merge (op, tmp))	1258	if (object::can_merge (op, tmp))
1349	{	1259	{
1350	op->nrof += tmp->nrof;	1260	op->nrof += tmp->nrof;
1351	tmp->destroy ();	1261	tmp->destroy ();
1352	}	1262	}
…		…
1369	op->below = originator->below;	1279	op->below = originator->below;
1370		1280
1371	if (op->below)	1281	if (op->below)
1372	op->below->above = op;	1282	op->below->above = op;
1373	else	1283	else
1374	SET_MAP_OB (op->map, op->x, op->y, op);	1284	op->ms ().bot = op;
1375		1285
1376	/* since *below* originator, no need to update top */	1286	/* since *below* originator, no need to update top */
1377	originator->below = op;	1287	originator->below = op;
1378	}	1288	}
1379	else	1289	else
1380	{	1290	{
1381	/* If there are other objects, then */	1291	/* If there are other objects, then */
1382	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))	1292	if ((!(flag & INS_MAP_LOAD)) && ((top = GET_MAP_OB (op->map, op->x, op->y)) != NULL))
1383	{	1293	{
1384	object *last = NULL;	1294	object *last = 0;
1385		1295
1386	/*	1296	/*
1387	* If there are multiple objects on this space, we do some trickier handling.	1297	* If there are multiple objects on this space, we do some trickier handling.
1388	* We've already dealt with merging if appropriate.	1298	* We've already dealt with merging if appropriate.
1389	* Generally, we want to put the new object on top. But if	1299	* Generally, we want to put the new object on top. But if
…		…
1393	* once we get to them. This reduces the need to traverse over all of	1303	* once we get to them. This reduces the need to traverse over all of
1394	* them when adding another one - this saves quite a bit of cpu time	1304	* them when adding another one - this saves quite a bit of cpu time
1395	* when lots of spells are cast in one area. Currently, it is presumed	1305	* when lots of spells are cast in one area. Currently, it is presumed
1396	* that flying non pickable objects are spell objects.	1306	* that flying non pickable objects are spell objects.
1397	*/	1307	*/
1398
1399	while (top != NULL)	1308	while (top)
1400	{	1309	{
1401	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))	1310	if (QUERY_FLAG (top, FLAG_IS_FLOOR) || QUERY_FLAG (top, FLAG_OVERLAY_FLOOR))
1402	floor = top;	1311	floor = top;
1403		1312
1404	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))	1313	if (QUERY_FLAG (top, FLAG_NO_PICK) && (top->move_type & (MOVE_FLY_LOW | MOVE_FLY_HIGH)) && !QUERY_FLAG (top, FLAG_IS_FLOOR))
…		…
1425	* If INS_ON_TOP is used, don't do this processing	1334	* If INS_ON_TOP is used, don't do this processing
1426	* Need to find the object that in fact blocks view, otherwise	1335	* Need to find the object that in fact blocks view, otherwise
1427	* stacking is a bit odd.	1336	* stacking is a bit odd.
1428	*/	1337	*/
1429	if (!(flag & INS_ON_TOP) &&	1338	if (!(flag & INS_ON_TOP) &&
1430	(get_map_flags (op->map, NULL, op->x, op->y, NULL, NULL) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))	1339	(get_map_flags (op->map, 0, op->x, op->y, 0, 0) & P_BLOCKSVIEW) && (op->face && !op->face->visibility))
1431	{	1340	{
1432	for (last = top; last != floor; last = last->below)	1341	for (last = top; last != floor; last = last->below)
1433	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))	1342	if (QUERY_FLAG (last, FLAG_BLOCKSVIEW) && (last->type != EXIT))
1434	break;	1343	break;
1435	/* Check to see if we found the object that blocks view,	1344	/* Check to see if we found the object that blocks view,
…		…
1457	op->above = GET_MAP_OB (op->map, op->x, op->y);	1366	op->above = GET_MAP_OB (op->map, op->x, op->y);
1458		1367
1459	if (op->above)	1368	if (op->above)
1460	op->above->below = op;	1369	op->above->below = op;
1461		1370
1462	op->below = NULL;	1371	op->below = 0;
1463	SET_MAP_OB (op->map, op->x, op->y, op);	1372	op->ms ().bot = op;
1464	}	1373	}
1465	else	1374	else
1466	{ /* get inserted into the stack above top */	1375	{ /* get inserted into the stack above top */
1467	op->above = top->above;	1376	op->above = top->above;
1468		1377
…		…
1471		1380
1472	op->below = top;	1381	op->below = top;
1473	top->above = op;	1382	top->above = op;
1474	}	1383	}
1475		1384
1476	if (op->above == NULL)	1385	if (!op->above)
1477	SET_MAP_TOP (op->map, op->x, op->y, op);	1386	op->ms ().top = op;
1478	} /* else not INS_BELOW_ORIGINATOR */	1387	} /* else not INS_BELOW_ORIGINATOR */
1479		1388
1480	if (op->type == PLAYER)	1389	if (op->type == PLAYER)
		1390	{
1481	op->contr->do_los = 1;	1391	op->contr->do_los = 1;
		1392	++op->map->players;
		1393	op->map->touch ();
		1394	}
		1395
		1396	op->map->dirty = true;
1482		1397
1483	/* If we have a floor, we know the player, if any, will be above	1398	/* If we have a floor, we know the player, if any, will be above
1484	* it, so save a few ticks and start from there.	1399	* it, so save a few ticks and start from there.
1485	*/	1400	*/
1486	if (!(flag & INS_MAP_LOAD))	1401	if (!(flag & INS_MAP_LOAD))
1487	for (tmp = floor ? floor : GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1402	if (object *pl = op->ms ().player ())
1488	if (tmp->type == PLAYER)	1403	if (pl->contr->ns)
1489	tmp->contr->socket->update_look = 1;	1404	pl->contr->ns->floorbox_update ();
1490		1405
1491	/* If this object glows, it may affect lighting conditions that are	1406	/* If this object glows, it may affect lighting conditions that are
1492	* visible to others on this map. But update_all_los is really	1407	* visible to others on this map. But update_all_los is really
1493	* an inefficient way to do this, as it means los for all players	1408	* an inefficient way to do this, as it means los for all players
1494	* on the map will get recalculated. The players could very well	1409	* on the map will get recalculated. The players could very well
1495	* be far away from this change and not affected in any way -	1410	* be far away from this change and not affected in any way -
1496	* this should get redone to only look for players within range,	1411	* this should get redone to only look for players within range,
1497	* or just updating the P_NEED_UPDATE for spaces within this area	1412	* or just updating the P_UPTODATE for spaces within this area
1498	* of effect may be sufficient.	1413	* of effect may be sufficient.
1499	*/	1414	*/
1500	if (MAP_DARKNESS (op->map) && (op->glow_radius != 0))	1415	if (op->map->darkness && (op->glow_radius != 0))
1501	update_all_los (op->map, op->x, op->y);	1416	update_all_los (op->map, op->x, op->y);
1502		1417
1503	/* updates flags (blocked, alive, no magic, etc) for this map space */	1418	/* updates flags (blocked, alive, no magic, etc) for this map space */
1504	update_object (op, UP_OBJ_INSERT);	1419	update_object (op, UP_OBJ_INSERT);
1505		1420
		1421	INVOKE_OBJECT (INSERT, op);
		1422
1506	/* Don't know if moving this to the end will break anything. However,	1423	/* Don't know if moving this to the end will break anything. However,
1507	* we want to have update_look set above before calling this.	1424	* we want to have floorbox_update called before calling this.
1508	*	1425	*
1509	* check_move_on() must be after this because code called from	1426	* check_move_on() must be after this because code called from
1510	* check_move_on() depends on correct map flags (so functions like	1427	* check_move_on() depends on correct map flags (so functions like
1511	* blocked() and wall() work properly), and these flags are updated by	1428	* blocked() and wall() work properly), and these flags are updated by
1512	* update_object().	1429	* update_object().
…		…
1514		1431
1515	/* if this is not the head or flag has been passed, don't check walk on status */	1432	/* if this is not the head or flag has been passed, don't check walk on status */
1516	if (!(flag & INS_NO_WALK_ON) && !op->head)	1433	if (!(flag & INS_NO_WALK_ON) && !op->head)
1517	{	1434	{
1518	if (check_move_on (op, originator))	1435	if (check_move_on (op, originator))
1519	return NULL;	1436	return 0;
1520		1437
1521	/* If we are a multi part object, lets work our way through the check	1438	/* If we are a multi part object, lets work our way through the check
1522	* walk on's.	1439	* walk on's.
1523	*/	1440	*/
1524	for (tmp = op->more; tmp != NULL; tmp = tmp->more)	1441	for (tmp = op->more; tmp != NULL; tmp = tmp->more)
1525	if (check_move_on (tmp, originator))	1442	if (check_move_on (tmp, originator))
1526	return NULL;	1443	return 0;
1527	}	1444	}
1528		1445
1529	return op;	1446	return op;
1530	}	1447	}
1531		1448
1532	/* this function inserts an object in the map, but if it	1449	/* this function inserts an object in the map, but if it
1533	* finds an object of its own type, it'll remove that one first.	1450	* finds an object of its own type, it'll remove that one first.
1534	* op is the object to insert it under: supplies x and the map.	1451	* op is the object to insert it under: supplies x and the map.
1535	*/	1452	*/
1536	void	1453	void
1537	replace_insert_ob_in_map (const char *arch_string, object *op)	1454	replace_insert_ob_in_map (const char *arch_string, object *op)
1538	{	1455	{
1539	object *	1456	object *tmp, *tmp1;
1540	tmp;
1541	object *
1542	tmp1;
1543		1457
1544	/* first search for itself and remove any old instances */	1458	/* first search for itself and remove any old instances */
1545		1459
1546	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL; tmp = tmp->above)	1460	for (tmp = op->ms ().bot; tmp; tmp = tmp->above)
1547	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */	1461	if (!strcmp (tmp->arch->name, arch_string)) /* same archetype */
1548	tmp->destroy ();	1462	tmp->destroy ();
1549		1463
1550	tmp1 = arch_to_object (archetype::find (arch_string));	1464	tmp1 = arch_to_object (archetype::find (arch_string));
1551		1465
1552	tmp1->x = op->x;	1466	tmp1->x = op->x;
1553	tmp1->y = op->y;	1467	tmp1->y = op->y;
1554	insert_ob_in_map (tmp1, op->map, op, 0);	1468	insert_ob_in_map (tmp1, op->map, op, 0);
		1469	}
		1470
		1471	object *
		1472	object::insert_at (object *where, object *originator, int flags)
		1473	{
		1474	where->map->insert (this, where->x, where->y, originator, flags);
1555	}	1475	}
1556		1476
1557	/*	1477	/*
1558	* get_split_ob(ob,nr) splits up ob into two parts. The part which	1478	* get_split_ob(ob,nr) splits up ob into two parts. The part which
1559	* is returned contains nr objects, and the remaining parts contains	1479	* is returned contains nr objects, and the remaining parts contains
1560	* the rest (or is removed and freed if that number is 0).	1480	* the rest (or is removed and freed if that number is 0).
1561	* On failure, NULL is returned, and the reason put into the	1481	* On failure, NULL is returned, and the reason put into the
1562	* global static errmsg array.	1482	* global static errmsg array.
1563	*/	1483	*/
1564
1565	object *	1484	object *
1566	get_split_ob (object *orig_ob, uint32 nr)	1485	get_split_ob (object *orig_ob, uint32 nr)
1567	{	1486	{
1568	object *newob;	1487	object *newob;
1569	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);	1488	int is_removed = (QUERY_FLAG (orig_ob, FLAG_REMOVED) != 0);
…		…
1605		1524
1606	object *	1525	object *
1607	decrease_ob_nr (object *op, uint32 i)	1526	decrease_ob_nr (object *op, uint32 i)
1608	{	1527	{
1609	object *tmp;	1528	object *tmp;
1610	player *pl;
1611		1529
1612	if (i == 0) /* objects with op->nrof require this check */	1530	if (i == 0) /* objects with op->nrof require this check */
1613	return op;	1531	return op;
1614		1532
1615	if (i > op->nrof)	1533	if (i > op->nrof)
1616	i = op->nrof;	1534	i = op->nrof;
1617		1535
1618	if (QUERY_FLAG (op, FLAG_REMOVED))	1536	if (QUERY_FLAG (op, FLAG_REMOVED))
1619	op->nrof -= i;	1537	op->nrof -= i;
1620	else if (op->env != NULL)	1538	else if (op->env)
1621	{	1539	{
1622	/* is this object in the players inventory, or sub container	1540	/* is this object in the players inventory, or sub container
1623	* therein?	1541	* therein?
1624	*/	1542	*/
1625	tmp = is_player_inv (op->env);	1543	tmp = op->in_player ();
1626	/* nope. Is this a container the player has opened?	1544	/* nope. Is this a container the player has opened?
1627	* If so, set tmp to that player.	1545	* If so, set tmp to that player.
1628	* IMO, searching through all the players will mostly	1546	* IMO, searching through all the players will mostly
1629	* likely be quicker than following op->env to the map,	1547	* likely be quicker than following op->env to the map,
1630	* and then searching the map for a player.	1548	* and then searching the map for a player.
1631	*/	1549	*/
1632	if (!tmp)	1550	if (!tmp)
1633	{	1551	for_all_players (pl)
1634	for (pl = first_player; pl; pl = pl->next)
1635	if (pl->ob->container == op->env)	1552	if (pl->ob->container == op->env)
		1553	{
		1554	tmp = pl->ob;
1636	break;	1555	break;
1637	if (pl)
1638	tmp = pl->ob;
1639	else
1640	tmp = NULL;
1641	}	1556	}
1642		1557
1643	if (i < op->nrof)	1558	if (i < op->nrof)
1644	{	1559	{
1645	sub_weight (op->env, op->weight * i);	1560	sub_weight (op->env, op->weight * i);
1646	op->nrof -= i;	1561	op->nrof -= i;
1647	if (tmp)	1562	if (tmp)
1648	{
1649	esrv_send_item (tmp, op);	1563	esrv_send_item (tmp, op);
1650	}
1651	}	1564	}
1652	else	1565	else
1653	{	1566	{
1654	op->remove ();	1567	op->remove ();
1655	op->nrof = 0;	1568	op->nrof = 0;
1656	if (tmp)	1569	if (tmp)
1657	{
1658	esrv_del_item (tmp->contr, op->count);	1570	esrv_del_item (tmp->contr, op->count);
1659	}
1660	}	1571	}
1661	}	1572	}
1662	else	1573	else
1663	{	1574	{
1664	object *above = op->above;	1575	object *above = op->above;
…		…
1670	op->remove ();	1581	op->remove ();
1671	op->nrof = 0;	1582	op->nrof = 0;
1672	}	1583	}
1673		1584
1674	/* Since we just removed op, op->above is null */	1585	/* Since we just removed op, op->above is null */
1675	for (tmp = above; tmp != NULL; tmp = tmp->above)	1586	for (tmp = above; tmp; tmp = tmp->above)
1676	if (tmp->type == PLAYER)	1587	if (tmp->type == PLAYER)
1677	{	1588	{
1678	if (op->nrof)	1589	if (op->nrof)
1679	esrv_send_item (tmp, op);	1590	esrv_send_item (tmp, op);
1680	else	1591	else
…		…
1685	if (op->nrof)	1596	if (op->nrof)
1686	return op;	1597	return op;
1687	else	1598	else
1688	{	1599	{
1689	op->destroy ();	1600	op->destroy ();
1690	return NULL;	1601	return 0;
1691	}	1602	}
1692	}	1603	}
1693		1604
1694	/*	1605	/*
1695	* add_weight(object, weight) adds the specified weight to an object,	1606	* add_weight(object, weight) adds the specified weight to an object,
…		…
1783	add_weight (this, op->weight * op->nrof);	1694	add_weight (this, op->weight * op->nrof);
1784	}	1695	}
1785	else	1696	else
1786	add_weight (this, (op->weight + op->carrying));	1697	add_weight (this, (op->weight + op->carrying));
1787		1698
1788	otmp = is_player_inv (this);	1699	otmp = this->in_player ();
1789	if (otmp && otmp->contr)	1700	if (otmp && otmp->contr)
1790	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))	1701	if (!QUERY_FLAG (otmp, FLAG_NO_FIX_PLAYER))
1791	fix_player (otmp);	1702	otmp->update_stats ();
1792		1703
1793	op->map = NULL;	1704	op->map = 0;
1794	op->env = this;	1705	op->env = this;
1795	op->above = NULL;	1706	op->above = 0;
1796	op->below = NULL;	1707	op->below = 0;
1797	op->x = 0, op->y = 0;	1708	op->x = 0, op->y = 0;
1798		1709
1799	/* reset the light list and los of the players on the map */	1710	/* reset the light list and los of the players on the map */
1800	if ((op->glow_radius != 0) && map)	1711	if ((op->glow_radius != 0) && map)
1801	{	1712	{
1802	#ifdef DEBUG_LIGHTS	1713	#ifdef DEBUG_LIGHTS
1803	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);	1714	LOG (llevDebug, " insert_ob_in_ob(): got %s to insert in map/op\n", op->name);
1804	#endif /* DEBUG_LIGHTS */	1715	#endif /* DEBUG_LIGHTS */
1805	if (MAP_DARKNESS (map))	1716	if (map->darkness)
1806	update_all_los (map, x, y);	1717	update_all_los (map, x, y);
1807	}	1718	}
1808		1719
1809	/* Client has no idea of ordering so lets not bother ordering it here.	1720	/* Client has no idea of ordering so lets not bother ordering it here.
1810	* It sure simplifies this function...	1721	* It sure simplifies this function...
…		…
1815	{	1726	{
1816	op->below = inv;	1727	op->below = inv;
1817	op->below->above = op;	1728	op->below->above = op;
1818	inv = op;	1729	inv = op;
1819	}	1730	}
		1731
		1732	INVOKE_OBJECT (INSERT, this);
1820		1733
1821	return op;	1734	return op;
1822	}	1735	}
1823		1736
1824	/*	1737	/*
…		…
1839	*	1752	*
1840	* MSW 2001-07-08: Check all objects on space, not just those below	1753	* MSW 2001-07-08: Check all objects on space, not just those below
1841	* object being inserted. insert_ob_in_map may not put new objects	1754	* object being inserted. insert_ob_in_map may not put new objects
1842	* on top.	1755	* on top.
1843	*/	1756	*/
1844
1845	int	1757	int
1846	check_move_on (object *op, object *originator)	1758	check_move_on (object *op, object *originator)
1847	{	1759	{
1848	object *tmp;	1760	object *tmp;
1849	maptile *m = op->map;	1761	maptile *m = op->map;
…		…
1876		1788
1877	/* The objects have to be checked from top to bottom.	1789	/* The objects have to be checked from top to bottom.
1878	* Hence, we first go to the top:	1790	* Hence, we first go to the top:
1879	*/	1791	*/
1880		1792
1881	for (tmp = GET_MAP_OB (op->map, op->x, op->y); tmp != NULL && tmp->above != NULL; tmp = tmp->above)	1793	for (tmp = op->ms ().bot; tmp && tmp->above; tmp = tmp->above)
1882	{	1794	{
1883	/* Trim the search when we find the first other spell effect	1795	/* Trim the search when we find the first other spell effect
1884	* this helps performance so that if a space has 50 spell objects,	1796	* this helps performance so that if a space has 50 spell objects,
1885	* we don't need to check all of them.	1797	* we don't need to check all of them.
1886	*/	1798	*/
…		…
1941	/*	1853	/*
1942	* present_arch(arch, map, x, y) searches for any objects with	1854	* present_arch(arch, map, x, y) searches for any objects with
1943	* a matching archetype at the given map and coordinates.	1855	* a matching archetype at the given map and coordinates.
1944	* The first matching object is returned, or NULL if none.	1856	* The first matching object is returned, or NULL if none.
1945	*/	1857	*/
1946
1947	object *	1858	object *
1948	present_arch (const archetype *at, maptile *m, int x, int y)	1859	present_arch (const archetype *at, maptile *m, int x, int y)
1949	{	1860	{
1950	object *
1951	tmp;
1952
1953	if (m == NULL || out_of_map (m, x, y))	1861	if (!m || out_of_map (m, x, y))
1954	{	1862	{
1955	LOG (llevError, "Present_arch called outside map.\n");	1863	LOG (llevError, "Present_arch called outside map.\n");
1956	return NULL;	1864	return NULL;
1957	}	1865	}
1958	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1866
		1867	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1959	if (tmp->arch == at)	1868	if (tmp->arch == at)
1960	return tmp;	1869	return tmp;
		1870
1961	return NULL;	1871	return NULL;
1962	}	1872	}
1963		1873
1964	/*	1874	/*
1965	* present(type, map, x, y) searches for any objects with	1875	* present(type, map, x, y) searches for any objects with
1966	* a matching type variable at the given map and coordinates.	1876	* a matching type variable at the given map and coordinates.
1967	* The first matching object is returned, or NULL if none.	1877	* The first matching object is returned, or NULL if none.
1968	*/	1878	*/
1969
1970	object *	1879	object *
1971	present (unsigned char type, maptile *m, int x, int y)	1880	present (unsigned char type, maptile *m, int x, int y)
1972	{	1881	{
1973	object *
1974	tmp;
1975
1976	if (out_of_map (m, x, y))	1882	if (out_of_map (m, x, y))
1977	{	1883	{
1978	LOG (llevError, "Present called outside map.\n");	1884	LOG (llevError, "Present called outside map.\n");
1979	return NULL;	1885	return NULL;
1980	}	1886	}
1981	for (tmp = GET_MAP_OB (m, x, y); tmp != NULL; tmp = tmp->above)	1887
		1888	for (object *tmp = m->at (x, y).bot; tmp; tmp = tmp->above)
1982	if (tmp->type == type)	1889	if (tmp->type == type)
1983	return tmp;	1890	return tmp;
		1891
1984	return NULL;	1892	return NULL;
1985	}	1893	}
1986		1894
1987	/*	1895	/*
1988	* present_in_ob(type, object) searches for any objects with	1896	* present_in_ob(type, object) searches for any objects with
1989	* a matching type variable in the inventory of the given object.	1897	* a matching type variable in the inventory of the given object.
1990	* The first matching object is returned, or NULL if none.	1898	* The first matching object is returned, or NULL if none.
1991	*/	1899	*/
1992
1993	object *	1900	object *
1994	present_in_ob (unsigned char type, const object *op)	1901	present_in_ob (unsigned char type, const object *op)
1995	{	1902	{
1996	object *
1997	tmp;
1998
1999	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1903	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2000	if (tmp->type == type)	1904	if (tmp->type == type)
2001	return tmp;	1905	return tmp;
		1906
2002	return NULL;	1907	return NULL;
2003	}	1908	}
2004		1909
2005	/*	1910	/*
2006	* present_in_ob (type, str, object) searches for any objects with	1911	* present_in_ob (type, str, object) searches for any objects with
…		…
2014	* str is the string to match against. Note that we match against	1919	* str is the string to match against. Note that we match against
2015	* the object name, not the archetype name. this is so that the	1920	* the object name, not the archetype name. this is so that the
2016	* spell code can use one object type (force), but change it's name	1921	* spell code can use one object type (force), but change it's name
2017	* to be unique.	1922	* to be unique.
2018	*/	1923	*/
2019
2020	object *	1924	object *
2021	present_in_ob_by_name (int type, const char *str, const object *op)	1925	present_in_ob_by_name (int type, const char *str, const object *op)
2022	{	1926	{
2023	object *
2024	tmp;
2025
2026	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1927	for (object *tmp = op->inv; tmp; tmp = tmp->below)
2027	{
2028	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))	1928	if ((type == -1 || tmp->type == type) && (!strcmp (str, tmp->name)))
2029	return tmp;	1929	return tmp;
2030	}	1930
2031	return NULL;	1931	return 0;
2032	}	1932	}
2033		1933
2034	/*	1934	/*
2035	* present_arch_in_ob(archetype, object) searches for any objects with	1935	* present_arch_in_ob(archetype, object) searches for any objects with
2036	* a matching archetype in the inventory of the given object.	1936	* a matching archetype in the inventory of the given object.
2037	* The first matching object is returned, or NULL if none.	1937	* The first matching object is returned, or NULL if none.
2038	*/	1938	*/
2039
2040	object *	1939	object *
2041	present_arch_in_ob (const archetype *at, const object *op)	1940	present_arch_in_ob (const archetype *at, const object *op)
2042	{	1941	{
2043	object *
2044	tmp;
2045
2046	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1942	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2047	if (tmp->arch == at)	1943	if (tmp->arch == at)
2048	return tmp;	1944	return tmp;
		1945
2049	return NULL;	1946	return NULL;
2050	}	1947	}
2051		1948
2052	/*	1949	/*
2053	* activate recursively a flag on an object inventory	1950	* activate recursively a flag on an object inventory
2054	*/	1951	*/
2055	void	1952	void
2056	flag_inv (object *op, int flag)	1953	flag_inv (object *op, int flag)
2057	{	1954	{
2058	object *
2059	tmp;
2060
2061	if (op->inv)	1955	if (op->inv)
2062	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1956	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2063	{	1957	{
2064	SET_FLAG (tmp, flag);	1958	SET_FLAG (tmp, flag);
2065	flag_inv (tmp, flag);	1959	flag_inv (tmp, flag);
2066	}	1960	}
2067	} /*	1961	}
		1962
		1963	/*
2068	* desactivate recursively a flag on an object inventory	1964	* deactivate recursively a flag on an object inventory
2069	*/	1965	*/
2070	void	1966	void
2071	unflag_inv (object *op, int flag)	1967	unflag_inv (object *op, int flag)
2072	{	1968	{
2073	object *
2074	tmp;
2075
2076	if (op->inv)	1969	if (op->inv)
2077	for (tmp = op->inv; tmp != NULL; tmp = tmp->below)	1970	for (object *tmp = op->inv; tmp != NULL; tmp = tmp->below)
2078	{	1971	{
2079	CLEAR_FLAG (tmp, flag);	1972	CLEAR_FLAG (tmp, flag);
2080	unflag_inv (tmp, flag);	1973	unflag_inv (tmp, flag);
2081	}	1974	}
2082	}	1975	}
…		…
2085	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in	1978	* set_cheat(object) sets the cheat flag (WAS_WIZ) in the object and in
2086	* all it's inventory (recursively).	1979	* all it's inventory (recursively).
2087	* If checksums are used, a player will get set_cheat called for	1980	* If checksums are used, a player will get set_cheat called for
2088	* him/her-self and all object carried by a call to this function.	1981	* him/her-self and all object carried by a call to this function.
2089	*/	1982	*/
2090
2091	void	1983	void
2092	set_cheat (object *op)	1984	set_cheat (object *op)
2093	{	1985	{
2094	SET_FLAG (op, FLAG_WAS_WIZ);	1986	SET_FLAG (op, FLAG_WAS_WIZ);
2095	flag_inv (op, FLAG_WAS_WIZ);	1987	flag_inv (op, FLAG_WAS_WIZ);
…		…
2114	* because arch_blocked (now ob_blocked) needs to know the movement type	2006	* because arch_blocked (now ob_blocked) needs to know the movement type
2115	* to know if the space in question will block the object. We can't use	2007	* to know if the space in question will block the object. We can't use
2116	* the archetype because that isn't correct if the monster has been	2008	* the archetype because that isn't correct if the monster has been
2117	* customized, changed states, etc.	2009	* customized, changed states, etc.
2118	*/	2010	*/
2119
2120	int	2011	int
2121	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)	2012	find_free_spot (const object *ob, maptile *m, int x, int y, int start, int stop)
2122	{	2013	{
2123	int
2124	i,
2125	index = 0, flag;	2014	int index = 0, flag;
2126	static int
2127	altern[SIZEOFFREE];	2015	int altern[SIZEOFFREE];
2128		2016
2129	for (i = start; i < stop; i++)	2017	for (int i = start; i < stop; i++)
2130	{	2018	{
2131	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);	2019	flag = ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]);
2132	if (!flag)	2020	if (!flag)
2133	altern[index++] = i;	2021	altern [index++] = i;
2134		2022
2135	/* Basically, if we find a wall on a space, we cut down the search size.	2023	/* Basically, if we find a wall on a space, we cut down the search size.
2136	* In this way, we won't return spaces that are on another side of a wall.	2024	* In this way, we won't return spaces that are on another side of a wall.
2137	* This mostly work, but it cuts down the search size in all directions -	2025	* This mostly work, but it cuts down the search size in all directions -
2138	* if the space being examined only has a wall to the north and empty	2026	* if the space being examined only has a wall to the north and empty
2139	* spaces in all the other directions, this will reduce the search space	2027	* spaces in all the other directions, this will reduce the search space
2140	* to only the spaces immediately surrounding the target area, and	2028	* to only the spaces immediately surrounding the target area, and
2141	* won't look 2 spaces south of the target space.	2029	* won't look 2 spaces south of the target space.
2142	*/	2030	*/
2143	else if ((flag & AB_NO_PASS) && maxfree[i] < stop)	2031	else if ((flag & P_NO_PASS) && maxfree[i] < stop)
2144	stop = maxfree[i];	2032	stop = maxfree[i];
2145	}	2033	}
		2034
2146	if (!index)	2035	if (!index)
2147	return -1;	2036	return -1;
		2037
2148	return altern[RANDOM () % index];	2038	return altern[RANDOM () % index];
2149	}	2039	}
2150		2040
2151	/*	2041	/*
2152	* find_first_free_spot(archetype, maptile, x, y) works like	2042	* find_first_free_spot(archetype, maptile, x, y) works like
2153	* find_free_spot(), but it will search max number of squares.	2043	* find_free_spot(), but it will search max number of squares.
2154	* But it will return the first available spot, not a random choice.	2044	* But it will return the first available spot, not a random choice.
2155	* Changed 0.93.2: Have it return -1 if there is no free spot available.	2045	* Changed 0.93.2: Have it return -1 if there is no free spot available.
2156	*/	2046	*/
2157
2158	int	2047	int
2159	find_first_free_spot (const object *ob, maptile *m, int x, int y)	2048	find_first_free_spot (const object *ob, maptile *m, int x, int y)
2160	{	2049	{
2161	int
2162	i;
2163
2164	for (i = 0; i < SIZEOFFREE; i++)	2050	for (int i = 0; i < SIZEOFFREE; i++)
2165	{
2166	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))	2051	if (!ob_blocked (ob, m, x + freearr_x[i], y + freearr_y[i]))
2167	return i;	2052	return i;
2168	}	2053
2169	return -1;	2054	return -1;
2170	}	2055	}
2171		2056
2172	/*	2057	/*
2173	* The function permute(arr, begin, end) randomly reorders the array	2058	* The function permute(arr, begin, end) randomly reorders the array
2174	* arr[begin..end-1].	2059	* arr[begin..end-1].
		2060	* now uses a fisher-yates shuffle, old permute was broken
2175	*/	2061	*/
2176	static void	2062	static void
2177	permute (int *arr, int begin, int end)	2063	permute (int *arr, int begin, int end)
2178	{	2064	{
2179	int	2065	arr += begin;
2180	i,
2181	j,
2182	tmp,
2183	len;
2184
2185	len = end - begin;	2066	end -= begin;
2186	for (i = begin; i < end; i++)
2187	{
2188	j = begin + RANDOM () % len;
2189		2067
2190	tmp = arr[i];	2068	while (--end)
2191	arr[i] = arr[j];	2069	swap (arr [end], arr [RANDOM () % (end + 1)]);
2192	arr[j] = tmp;
2193	}
2194	}	2070	}
2195		2071
2196	/* new function to make monster searching more efficient, and effective!	2072	/* new function to make monster searching more efficient, and effective!
2197	* This basically returns a randomized array (in the passed pointer) of	2073	* This basically returns a randomized array (in the passed pointer) of
2198	* the spaces to find monsters. In this way, it won't always look for	2074	* the spaces to find monsters. In this way, it won't always look for
…		…
2201	* the 3x3 area will be searched, just not in a predictable order.	2077	* the 3x3 area will be searched, just not in a predictable order.
2202	*/	2078	*/
2203	void	2079	void
2204	get_search_arr (int *search_arr)	2080	get_search_arr (int *search_arr)
2205	{	2081	{
2206	int	2082	int i;
2207	i;
2208		2083
2209	for (i = 0; i < SIZEOFFREE; i++)	2084	for (i = 0; i < SIZEOFFREE; i++)
2210	{
2211	search_arr[i] = i;	2085	search_arr[i] = i;
2212	}
2213		2086
2214	permute (search_arr, 1, SIZEOFFREE1 + 1);	2087	permute (search_arr, 1, SIZEOFFREE1 + 1);
2215	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);	2088	permute (search_arr, SIZEOFFREE1 + 1, SIZEOFFREE2 + 1);
2216	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);	2089	permute (search_arr, SIZEOFFREE2 + 1, SIZEOFFREE);
2217	}	2090	}
…		…
2226	* Perhaps incorrectly, but I'm making the assumption that exclude	2099	* Perhaps incorrectly, but I'm making the assumption that exclude
2227	* is actually want is going to try and move there. We need this info	2100	* is actually want is going to try and move there. We need this info
2228	* because we have to know what movement the thing looking to move	2101	* because we have to know what movement the thing looking to move
2229	* there is capable of.	2102	* there is capable of.
2230	*/	2103	*/
2231
2232	int	2104	int
2233	find_dir (maptile *m, int x, int y, object *exclude)	2105	find_dir (maptile *m, int x, int y, object *exclude)
2234	{	2106	{
2235	int
2236	i,
2237	max = SIZEOFFREE, mflags;	2107	int i, max = SIZEOFFREE, mflags;
2238		2108
2239	sint16 nx, ny;	2109	sint16 nx, ny;
2240	object *	2110	object *tmp;
2241	tmp;
2242	maptile *	2111	maptile *mp;
2243	mp;
2244		2112
2245	MoveType blocked, move_type;	2113	MoveType blocked, move_type;
2246		2114
2247	if (exclude && exclude->head)	2115	if (exclude && exclude->head)
2248	{	2116	{
…		…
2260	mp = m;	2128	mp = m;
2261	nx = x + freearr_x[i];	2129	nx = x + freearr_x[i];
2262	ny = y + freearr_y[i];	2130	ny = y + freearr_y[i];
2263		2131
2264	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);	2132	mflags = get_map_flags (m, &mp, nx, ny, &nx, &ny);
		2133
2265	if (mflags & P_OUT_OF_MAP)	2134	if (mflags & P_OUT_OF_MAP)
2266	{
2267	max = maxfree[i];	2135	max = maxfree[i];
2268	}
2269	else	2136	else
2270	{	2137	{
2271	blocked = GET_MAP_MOVE_BLOCK (mp, nx, ny);	2138	mapspace &ms = mp->at (nx, ny);
		2139
		2140	blocked = ms.move_block;
2272		2141
2273	if ((move_type & blocked) == move_type)	2142	if ((move_type & blocked) == move_type)
2274	{
2275	max = maxfree[i];	2143	max = maxfree[i];
2276	}
2277	else if (mflags & P_IS_ALIVE)	2144	else if (mflags & P_IS_ALIVE)
2278	{	2145	{
2279	for (tmp = GET_MAP_OB (mp, nx, ny); tmp != NULL; tmp = tmp->above)	2146	for (tmp = ms.bot; tmp; tmp = tmp->above)
2280	{	2147	if ((tmp->flag [FLAG_MONSTER] || tmp->type == PLAYER)
2281	if ((QUERY_FLAG (tmp, FLAG_MONSTER) || tmp->type == PLAYER) && (tmp != exclude || (tmp->head && tmp->head != exclude)))	2148	&& (tmp != exclude || (tmp->head && tmp->head != exclude)))
2282	{
2283	break;	2149	break;
2284	}	2150
2285	}
2286	if (tmp)	2151	if (tmp)
2287	{
2288	return freedir[i];	2152	return freedir[i];
2289	}
2290	}	2153	}
2291	}	2154	}
2292	}	2155	}
		2156
2293	return 0;	2157	return 0;
2294	}	2158	}
2295		2159
2296	/*	2160	/*
2297	* distance(object 1, object 2) will return the square of the	2161	* distance(object 1, object 2) will return the square of the
2298	* distance between the two given objects.	2162	* distance between the two given objects.
2299	*/	2163	*/
2300
2301	int	2164	int
2302	distance (const object *ob1, const object *ob2)	2165	distance (const object *ob1, const object *ob2)
2303	{	2166	{
2304	int
2305	i;
2306
2307	i = (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);	2167	return (ob1->x - ob2->x) * (ob1->x - ob2->x) + (ob1->y - ob2->y) * (ob1->y - ob2->y);
2308	return i;
2309	}	2168	}
2310		2169
2311	/*	2170	/*
2312	* find_dir_2(delta-x,delta-y) will return a direction in which	2171	* find_dir_2(delta-x,delta-y) will return a direction in which
2313	* an object which has subtracted the x and y coordinates of another	2172	* an object which has subtracted the x and y coordinates of another
2314	* object, needs to travel toward it.	2173	* object, needs to travel toward it.
2315	*/	2174	*/
2316
2317	int	2175	int
2318	find_dir_2 (int x, int y)	2176	find_dir_2 (int x, int y)
2319	{	2177	{
2320	int	2178	int q;
2321	q;
2322		2179
2323	if (y)	2180	if (y)
2324	q = x * 100 / y;	2181	q = x * 100 / y;
2325	else if (x)	2182	else if (x)
2326	q = -300 * x;	2183	q = -300 * x;
…		…
2361	int	2218	int
2362	absdir (int d)	2219	absdir (int d)
2363	{	2220	{
2364	while (d < 1)	2221	while (d < 1)
2365	d += 8;	2222	d += 8;
		2223
2366	while (d > 8)	2224	while (d > 8)
2367	d -= 8;	2225	d -= 8;
		2226
2368	return d;	2227	return d;
2369	}	2228	}
2370		2229
2371	/*	2230	/*
2372	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is	2231	* dirdiff(dir1, dir2) returns how many 45-degrees differences there is
…		…
2374	*/	2233	*/
2375		2234
2376	int	2235	int
2377	dirdiff (int dir1, int dir2)	2236	dirdiff (int dir1, int dir2)
2378	{	2237	{
2379	int	2238	int d;
2380	d;
2381		2239
2382	d = abs (dir1 - dir2);	2240	d = abs (dir1 - dir2);
2383	if (d > 4)	2241	if (d > 4)
2384	d = 8 - d;	2242	d = 8 - d;
		2243
2385	return d;	2244	return d;
2386	}	2245	}
2387		2246
2388	/* peterm:	2247	/* peterm:
2389	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.	2248	* do LOS stuff for ball lightning. Go after the closest VISIBLE monster.
…		…
2392	* This basically means that if direction is 15, then it could either go	2251	* This basically means that if direction is 15, then it could either go
2393	* direction 4, 14, or 16 to get back to where we are.	2252	* direction 4, 14, or 16 to get back to where we are.
2394	* Moved from spell_util.c to object.c with the other related direction	2253	* Moved from spell_util.c to object.c with the other related direction
2395	* functions.	2254	* functions.
2396	*/	2255	*/
2397
2398	int
2399	reduction_dir[SIZEOFFREE][3] = {	2256	int reduction_dir[SIZEOFFREE][3] = {
2400	{0, 0, 0}, /* 0 */	2257	{0, 0, 0}, /* 0 */
2401	{0, 0, 0}, /* 1 */	2258	{0, 0, 0}, /* 1 */
2402	{0, 0, 0}, /* 2 */	2259	{0, 0, 0}, /* 2 */
2403	{0, 0, 0}, /* 3 */	2260	{0, 0, 0}, /* 3 */
2404	{0, 0, 0}, /* 4 */	2261	{0, 0, 0}, /* 4 */
…		…
2452	* find a path to that monster that we found. If not,	2309	* find a path to that monster that we found. If not,
2453	* we don't bother going toward it. Returns 1 if we	2310	* we don't bother going toward it. Returns 1 if we
2454	* can see a direct way to get it	2311	* can see a direct way to get it
2455	* Modified to be map tile aware -.MSW	2312	* Modified to be map tile aware -.MSW
2456	*/	2313	*/
2457
2458
2459	int	2314	int
2460	can_see_monsterP (maptile *m, int x, int y, int dir)	2315	can_see_monsterP (maptile *m, int x, int y, int dir)
2461	{	2316	{
2462	sint16 dx, dy;	2317	sint16 dx, dy;
2463	int
2464	mflags;	2318	int mflags;
2465		2319
2466	if (dir < 0)	2320	if (dir < 0)
2467	return 0; /* exit condition: invalid direction */	2321	return 0; /* exit condition: invalid direction */
2468		2322
2469	dx = x + freearr_x[dir];	2323	dx = x + freearr_x[dir];
…		…
2482	return 0;	2336	return 0;
2483		2337
2484	/* yes, can see. */	2338	/* yes, can see. */
2485	if (dir < 9)	2339	if (dir < 9)
2486	return 1;	2340	return 1;
		2341
2487	return can_see_monsterP (m, x, y, reduction_dir[dir][0]) |	2342	return can_see_monsterP (m, x, y, reduction_dir[dir][0])
2488	can_see_monsterP (m, x, y, reduction_dir[dir][1]) | can_see_monsterP (m, x, y, reduction_dir[dir][2]);	2343	| can_see_monsterP (m, x, y, reduction_dir[dir][1])
		2344	| can_see_monsterP (m, x, y, reduction_dir[dir][2]);
2489	}	2345	}
2490
2491
2492		2346
2493	/*	2347	/*
2494	* can_pick(picker, item): finds out if an object is possible to be	2348	* can_pick(picker, item): finds out if an object is possible to be
2495	* picked up by the picker. Returnes 1 if it can be	2349	* picked up by the picker. Returnes 1 if it can be
2496	* picked up, otherwise 0.	2350	* picked up, otherwise 0.
…		…
2507	return /*QUERY_FLAG(who,FLAG_WIZ)|| */	2361	return /*QUERY_FLAG(who,FLAG_WIZ)|| */
2508	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&	2362	(item->weight > 0 && !QUERY_FLAG (item, FLAG_NO_PICK) &&
2509	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));	2363	!QUERY_FLAG (item, FLAG_ALIVE) && !item->invisible && (who->type == PLAYER || item->weight < who->weight / 3));
2510	}	2364	}
2511		2365
2512
2513	/*	2366	/*
2514	* create clone from object to another	2367	* create clone from object to another
2515	*/	2368	*/
2516	object *	2369	object *
2517	object_create_clone (object *asrc)	2370	object_create_clone (object *asrc)
…		…
2536	{	2389	{
2537	dst = tmp;	2390	dst = tmp;
2538	tmp->head = 0;	2391	tmp->head = 0;
2539	}	2392	}
2540	else	2393	else
2541	{
2542	tmp->head = dst;	2394	tmp->head = dst;
2543	}
2544		2395
2545	tmp->more = 0;	2396	tmp->more = 0;
2546		2397
2547	if (prev)	2398	if (prev)
2548	prev->more = tmp;	2399	prev->more = tmp;
…		…
2560	/* Basically, we save the content of the string to a temp file, then call */	2411	/* Basically, we save the content of the string to a temp file, then call */
2561	/* load_object on it. I admit it is a highly inefficient way to make things, */	2412	/* load_object on it. I admit it is a highly inefficient way to make things, */
2562	/* but it was simple to make and allows reusing the load_object function. */	2413	/* but it was simple to make and allows reusing the load_object function. */
2563	/* Remember not to use load_object_str in a time-critical situation. */	2414	/* Remember not to use load_object_str in a time-critical situation. */
2564	/* Also remember that multiparts objects are not supported for now. */	2415	/* Also remember that multiparts objects are not supported for now. */
2565
2566	object *	2416	object *
2567	load_object_str (const char *obstr)	2417	load_object_str (const char *obstr)
2568	{	2418	{
2569	object *op;	2419	object *op;
2570	char filename[MAX_BUF];	2420	char filename[MAX_BUF];
…		…
2600	* returns NULL if no match.	2450	* returns NULL if no match.
2601	*/	2451	*/
2602	object *	2452	object *
2603	find_obj_by_type_subtype (const object *who, int type, int subtype)	2453	find_obj_by_type_subtype (const object *who, int type, int subtype)
2604	{	2454	{
2605	object *tmp;
2606
2607	for (tmp = who->inv; tmp; tmp = tmp->below)	2455	for (object *tmp = who->inv; tmp; tmp = tmp->below)
2608	if (tmp->type == type && tmp->subtype == subtype)	2456	if (tmp->type == type && tmp->subtype == subtype)
2609	return tmp;	2457	return tmp;
2610		2458
2611	return NULL;	2459	return 0;
2612	}	2460	}
2613		2461
2614	/* If ob has a field named key, return the link from the list,	2462	/* If ob has a field named key, return the link from the list,
2615	* otherwise return NULL.	2463	* otherwise return NULL.
2616	*	2464	*
…		…
2618	* do the desired thing.	2466	* do the desired thing.
2619	*/	2467	*/
2620	key_value *	2468	key_value *
2621	get_ob_key_link (const object *ob, const char *key)	2469	get_ob_key_link (const object *ob, const char *key)
2622	{	2470	{
2623	key_value *link;
2624
2625	for (link = ob->key_values; link != NULL; link = link->next)	2471	for (key_value *link = ob->key_values; link; link = link->next)
2626	if (link->key == key)	2472	if (link->key == key)
2627	return link;	2473	return link;
2628		2474
2629	return NULL;	2475	return 0;
2630	}	2476	}
2631		2477
2632	/*	2478	/*
2633	* Returns the value of op has an extra_field for key, or NULL.	2479	* Returns the value of op has an extra_field for key, or NULL.
2634	*	2480	*
…		…
2674	* Returns TRUE on success.	2520	* Returns TRUE on success.
2675	*/	2521	*/
2676	int	2522	int
2677	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)	2523	set_ob_key_value_s (object *op, const shstr & canonical_key, const char *value, int add_key)
2678	{	2524	{
2679	key_value *
2680	field = NULL, *last = NULL;	2525	key_value *field = NULL, *last = NULL;
2681		2526
2682	for (field = op->key_values; field != NULL; field = field->next)	2527	for (field = op->key_values; field != NULL; field = field->next)
2683	{	2528	{
2684	if (field->key != canonical_key)	2529	if (field->key != canonical_key)
2685	{	2530	{
…		…
2713	/* IF we get here, key doesn't exist */	2558	/* IF we get here, key doesn't exist */
2714		2559
2715	/* No field, we'll have to add it. */	2560	/* No field, we'll have to add it. */
2716		2561
2717	if (!add_key)	2562	if (!add_key)
2718	{
2719	return FALSE;	2563	return FALSE;
2720	}	2564
2721	/* There isn't any good reason to store a null	2565	/* There isn't any good reason to store a null
2722	* value in the key/value list. If the archetype has	2566	* value in the key/value list. If the archetype has
2723	* this key, then we should also have it, so shouldn't	2567	* this key, then we should also have it, so shouldn't
2724	* be here. If user wants to store empty strings,	2568	* be here. If user wants to store empty strings,
2725	* should pass in ""	2569	* should pass in ""
…		…
2774	}	2618	}
2775	else	2619	else
2776	item = item->env;	2620	item = item->env;
2777	}	2621	}
2778		2622
		2623
		2624	const char *
		2625	object::flag_desc (char *desc, int len) const
		2626	{
		2627	char *p = desc;
		2628	bool first = true;
		2629
		2630	*p = 0;
		2631
		2632	for (int i = 0; i < NUM_FLAGS; i++)
		2633	{
		2634	if (len <= 10) // magic constant!
		2635	{
		2636	snprintf (p, len, ",...");
		2637	break;
		2638	}
		2639
		2640	if (flag [i])
		2641	{
		2642	int cnt = snprintf (p, len, "%s%d", first ? "" : ",", i);
		2643	len -= cnt;
		2644	p += cnt;
		2645	first = false;
		2646	}
		2647	}
		2648
		2649	return desc;
		2650	}
		2651
2779	// return a suitable string describing an objetc in enough detail to find it	2652	// return a suitable string describing an object in enough detail to find it
2780	const char *	2653	const char *
2781	object::debug_desc (char *info) const	2654	object::debug_desc (char *info) const
2782	{	2655	{
		2656	char flagdesc[512];
2783	char info2[256 * 3];	2657	char info2[256 * 4];
2784	char *p = info;	2658	char *p = info;
2785		2659
2786	p += snprintf (p, 256, "%d=\"%s%s%s\"",	2660	p += snprintf (p, 512, "{cnt:%d,uuid:<1,%" PRIx64 ">,name:\"%s%s%s\",flags:[%s],type:%d}",
2787	count,	2661	count, uuid.seq,
2788	&name,	2662	&name,
2789	title ? " " : "",	2663	title ? "\",title:" : "",
2790	title ? (const char *)title : "");	2664	title ? (const char *)title : "",
		2665	flag_desc (flagdesc, 512), type);
2791		2666
2792	if (env)	2667	if (env)
2793	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));	2668	p += snprintf (p, 256, "(in %s)", env->debug_desc (info2));
2794		2669
2795	if (map)	2670	if (map)
2796	p += snprintf (p, 256, "(on %s@%d+%d)", map->path, x, y);	2671	p += snprintf (p, 256, "(on %s@%d+%d)", &map->path, x, y);
2797		2672
2798	return info;	2673	return info;
2799	}	2674	}
2800		2675
2801	const char *	2676	const char *
2802	object::debug_desc () const	2677	object::debug_desc () const
2803	{	2678	{
2804	static char info[256 * 3];	2679	static char info[256 * 4];
2805	return debug_desc (info);	2680	return debug_desc (info);
2806	}	2681	}
2807		2682

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