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Comparing deliantra/server/common/map.C (file contents):
Revision 1.115 by root, Wed Aug 1 01:53:13 2007 UTC vs.
Revision 1.200 by root, Fri May 7 19:46:18 2010 UTC

1	/*	1	/*
2	* This file is part of Crossfire TRT, the Roguelike Realtime MORPG.	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*	3	*
4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team	4	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	* Copyright (©) 2001-2003,2007 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2001-2003 Mark Wedel & Crossfire Development Team
6	* Copyright (©) 1992,2007 Frank Tore Johansen	6	* Copyright (©) 1992 Frank Tore Johansen
7	*	7	*
8	* Crossfire TRT is free software: you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
9	* it under the terms of the GNU General Public License as published by	9	* the terms of the Affero GNU General Public License as published by the
10	* the Free Software Foundation, either version 3 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	* (at your option) any later version.	11	* option) any later version.
12	*	12	*
13	* This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
14	* but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	* GNU General Public License for more details.	16	* GNU General Public License for more details.
17	*	17	*
18	* You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
19	* along with this program. If not, see <http://www.gnu.org/licenses/>.	19	* and the GNU General Public License along with this program. If not, see
		20	* <http://www.gnu.org/licenses/>.
20	*	21	*
21	* The authors can be reached via e-mail to <crossfire@schmorp.de>	22	* The authors can be reached via e-mail to <support@deliantra.net>
22	*/	23	*/
23		24
24	#include <unistd.h>	25	#include <unistd.h>
25		26
26	#include "global.h"	27	#include "global.h"
27	#include "funcpoint.h"
28
29	#include "loader.h"
30
31	#include "path.h"	28	#include "path.h"
		29
		30	//+GPL
		31
		32	sint8 maptile::outdoor_darkness;
32		33
33	/* This rolls up wall, blocks_magic, blocks_view, etc, all into	34	/* This rolls up wall, blocks_magic, blocks_view, etc, all into
34	* one function that just returns a P_.. value (see map.h)	35	* one function that just returns a P_.. value (see map.h)
35	* it will also do map translation for tiled maps, returning	36	* it will also do map translation for tiled maps, returning
36	* new values into newmap, nx, and ny. Any and all of those	37	* new values into newmap, nx, and ny. Any and all of those
…		…
71	* by the caller.	72	* by the caller.
72	*/	73	*/
73	int	74	int
74	blocked_link (object *ob, maptile *m, int sx, int sy)	75	blocked_link (object *ob, maptile *m, int sx, int sy)
75	{	76	{
76	object *tmp;
77	int mflags, blocked;
78
79	/* Make sure the coordinates are valid - they should be, as caller should	77	/* Make sure the coordinates are valid - they should be, as caller should
80	* have already checked this.	78	* have already checked this.
81	*/	79	*/
82	if (OUT_OF_REAL_MAP (m, sx, sy))	80	if (OUT_OF_REAL_MAP (m, sx, sy))
83	{	81	{
84	LOG (llevError, "blocked_link: Passed map, x, y coordinates outside of map\n");	82	LOG (llevError | logBacktrace, "blocked_link: Passed map, x, y coordinates outside of map\n");
85	return 1;	83	return 1;
86	}	84	}
87		85
88	/* Save some cycles - instead of calling get_map_flags(), just get the value	86	mapspace &ms = m->at (sx, sy);
89	* directly.
90	*/
91	mflags = m->at (sx, sy).flags ();
92		87
93	blocked = GET_MAP_MOVE_BLOCK (m, sx, sy);	88	int mflags = ms.flags ();
		89	int blocked = ms.move_block;
94		90
95	/* If space is currently not blocked by anything, no need to	91	/* If space is currently not blocked by anything, no need to
96	* go further. Not true for players - all sorts of special	92	* go further. Not true for players - all sorts of special
97	* things we need to do for players.	93	* things we need to do for players.
98	*/	94	*/
99	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && (blocked == 0))	95	if (ob->type != PLAYER && !(mflags & P_IS_ALIVE) && blocked == 0)
100	return 0;	96	return 0;
101		97
102	/* if there isn't anytyhing alive on this space, and this space isn't	98	/* if there isn't anything alive on this space, and this space isn't
103	* otherwise blocked, we can return now. Only if there is a living	99	* otherwise blocked, we can return now. Only if there is a living
104	* creature do we need to investigate if it is part of this creature	100	* creature do we need to investigate if it is part of this creature
105	* or another. Likewise, only if something is blocking us do we	101	* or another. Likewise, only if something is blocking us do we
106	* need to investigate if there is a special circumstance that would	102	* need to investigate if there is a special circumstance that would
107	* let the player through (inventory checkers for example)	103	* let the player through (inventory checkers for example)
…		…
114	/* We basically go through the stack of objects, and if there is	110	/* We basically go through the stack of objects, and if there is
115	* some other object that has NO_PASS or FLAG_ALIVE set, return	111	* some other object that has NO_PASS or FLAG_ALIVE set, return
116	* true. If we get through the entire stack, that must mean	112	* true. If we get through the entire stack, that must mean
117	* ob is blocking it, so return 0.	113	* ob is blocking it, so return 0.
118	*/	114	*/
119	for (tmp = GET_MAP_OB (m, sx, sy); tmp; tmp = tmp->above)	115	for (object *tmp = ms.top; tmp; tmp = tmp->below)
120	{	116	{
121		117	if (OB_MOVE_BLOCK (ob, tmp))
122	/* This must be before the checks below. Code for inventory checkers. */
123	if (tmp->type == CHECK_INV && OB_MOVE_BLOCK (ob, tmp))
124	{	118	{
125	/* If last_sp is set, the player/monster needs an object,	119	if (INVOKE_OBJECT (BLOCKED_MOVE, tmp, ob))
126	* so we check for it. If they don't have it, they can't	120	if (RESULT_INT (0))
127	* pass through this space.	121	return 1;
128	*/	122	else
129	if (tmp->last_sp)	123	continue;
		124
		125	if (tmp->type == CHECK_INV)
130	{	126	{
131	if (check_inv_recursive (ob, tmp) == NULL)	127	bool have = check_inv_recursive (ob, tmp);
		128
		129	// last_sp set means we block if we don't have.
		130	if (logical_xor (have, tmp->last_sp))
132	return 1;	131	return 1;
133	else	132	}
134	continue;	133	else if (tmp->type == T_MATCH)
		134	{
		135	// T_MATCH allows "entrance" iff the match is true
		136	// == blocks if the match fails
		137
		138	// we could have used an INVOKE_OBJECT, but decided against it, as we
		139	// assume that T_MATCH is relatively common.
		140	if (!match (tmp->slaying, ob, tmp, ob))
		141	return 1;
135	}	142	}
136	else	143	else
137	{	144	return 1; // unconditional block
138	/* In this case, the player must not have the object -	145
139	* if they do, they can't pass through.
140	*/
141	if (check_inv_recursive (ob, tmp) != NULL) /* player has object */
142	return 1;
143	else
144	continue;
145	}
146	} /* if check_inv */
147	else	146	} else {
148	{	147	// space does not block the ob, directly, but
149	/* Broke apart a big nasty if into several here to make	148	// anything alive that is not a door still
150	* this more readable. first check - if the space blocks	149	// blocks anything
151	* movement, can't move here.
152	* second - if a monster, can't move there, unless it is a
153	* hidden dm
154	*/
155	if (OB_MOVE_BLOCK (ob, tmp))
156	return 1;
157		150
158	if (tmp->flag [FLAG_ALIVE]	151	if (tmp->flag [FLAG_ALIVE]
159	&& tmp->head_ () != ob
160	&& tmp != ob
161	&& tmp->type != DOOR	152	&& tmp->type != DOOR
162	&& !(tmp->flag [FLAG_WIZ] && tmp->contr->hidden))	153	&& tmp->head_ () != ob) //TODO: maybe move these check up?
163	return 1;	154	return 1;
164	}	155	}
165
166	}	156	}
		157
167	return 0;	158	return 0;
168	}	159	}
169		160
170	/*	161	/*
171	* Returns true if the given object can't fit in the given spot.	162	* Returns the blocking object if the given object can't fit in the given
172	* This is meant for multi space objects - for single space objecs,	163	* spot. This is meant for multi space objects - for single space objecs,
173	* just calling get_map_blocked and checking that against movement type	164	* just calling get_map_blocked and checking that against movement type
174	* of object. This function goes through all the parts of the	165	* of object. This function goes through all the parts of the multipart
175	* multipart object and makes sure they can be inserted.	166	* object and makes sure they can be inserted.
176	*	167	*
177	* While this doesn't call out of map, the get_map_flags does.	168	* While this doesn't call out of map, the get_map_flags does.
178	*	169	*
179	* This function has been used to deprecate arch_out_of_map -	170	* This function has been used to deprecate arch_out_of_map -
180	* this function also does that check, and since in most cases,	171	* this function also does that check, and since in most cases,
…		…
191	*	182	*
192	* Note this used to be arch_blocked, but with new movement	183	* Note this used to be arch_blocked, but with new movement
193	* code, we need to have actual object to check its move_type	184	* code, we need to have actual object to check its move_type
194	* against the move_block values.	185	* against the move_block values.
195	*/	186	*/
196	int	187	bool
197	ob_blocked (const object *ob, maptile *m, sint16 x, sint16 y)	188	object::blocked (maptile *m, int x, int y) const
198	{	189	{
199	archetype *tmp;	190	for (archetype *tmp = arch; tmp; tmp = (archetype *)tmp->more)
200	int flag;
201	maptile *m1;
202	sint16 sx, sy;
203
204	if (!ob)
205	{
206	flag = get_map_flags (m, &m1, x, y, &sx, &sy);
207	if (flag & P_OUT_OF_MAP)
208	return P_OUT_OF_MAP;
209
210	/* don't have object, so don't know what types would block */
211	return m1->at (sx, sy).move_block;
212	}	191	{
		192	mapxy pos (m, x + tmp->x, y + tmp->y);
213		193
214	for (tmp = ob->arch; tmp; tmp = (archetype *)tmp->more)	194	if (!pos.normalise ())
215	{	195	return 1;
216	flag = get_map_flags (m, &m1, x + tmp->x, y + tmp->y, &sx, &sy);
217		196
218	if (flag & P_OUT_OF_MAP)	197	mapspace &ms = *pos;
219	return P_OUT_OF_MAP;	198
220	if (flag & P_IS_ALIVE)	199	if (ms.flags () & P_IS_ALIVE)
221	return P_IS_ALIVE;	200	return 1;
222		201
223	mapspace &ms = m1->at (sx, sy);	202	/* However, often ob doesn't have any move type
224		203	* (signifying non-moving objects)
225	/* find_first_free_spot() calls this function. However, often
226	* ob doesn't have any move type (when used to place exits)
227	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.	204	* so the AND operation in OB_TYPE_MOVE_BLOCK doesn't work.
228	*/	205	*/
229
230	if (ob->move_type == 0 && ms.move_block != MOVE_ALL)	206	if (!move_type && ms.move_block != MOVE_ALL)
231	continue;	207	continue;
232		208
233	/* Note it is intentional that we check ob - the movement type of the	209	/* Note it is intentional that we check ob - the movement type of the
234	* head of the object should correspond for the entire object.	210	* head of the object should correspond for the entire object.
235	*/	211	*/
236	if (OB_TYPE_MOVE_BLOCK (ob, ms.move_block))	212	if (ms.blocks (move_type))
237	return P_NO_PASS;	213	return 1;
238	}	214	}
239		215
240	return 0;	216	return 0;
241	}	217	}
242		218
243	/* When the map is loaded, load_object does not actually insert objects	219	//-GPL
244	* into inventory, but just links them. What this does is go through
245	* and insert them properly.
246	* The object 'container' is the object that contains the inventory.
247	* This is needed so that we can update the containers weight.
248	*/
249	void
250	fix_container (object *container)
251	{
252	object *tmp = container->inv, *next;
253
254	container->inv = 0;
255	while (tmp)
256	{
257	next = tmp->below;
258	if (tmp->inv)
259	fix_container (tmp);
260
261	insert_ob_in_ob (tmp, container);
262	tmp = next;
263	}
264
265	/* sum_weight will go through and calculate what all the containers are
266	* carrying.
267	*/
268	sum_weight (container);
269	}
270		220
271	void	221	void
272	maptile::set_object_flag (int flag, int value)	222	maptile::set_object_flag (int flag, int value)
273	{	223	{
274	if (!spaces)	224	if (!spaces)
…		…
276		226
277	for (mapspace *ms = spaces + size (); ms-- > spaces; )	227	for (mapspace *ms = spaces + size (); ms-- > spaces; )
278	for (object *tmp = ms->bot; tmp; tmp = tmp->above)	228	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
279	tmp->flag [flag] = value;	229	tmp->flag [flag] = value;
280	}	230	}
		231
		232	void
		233	maptile::post_load_original ()
		234	{
		235	if (!spaces)
		236	return;
		237
		238	set_object_flag (FLAG_OBJ_ORIGINAL);
		239
		240	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		241	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		242	INVOKE_OBJECT (RESET, tmp);
		243	}
		244
		245	void
		246	maptile::post_load ()
		247	{
		248	#if 0
		249	if (!spaces)
		250	return;
		251
		252	for (mapspace *ms = spaces + size (); ms-- > spaces; )
		253	for (object *tmp = ms->bot; tmp; tmp = tmp->above)
		254	; // nop
		255	#endif
		256	}
		257
		258	//+GPL
281		259
282	/* link_multipart_objects go through all the objects on the map looking	260	/* link_multipart_objects go through all the objects on the map looking
283	* for objects whose arch says they are multipart yet according to the	261	* for objects whose arch says they are multipart yet according to the
284	* info we have, they only have the head (as would be expected when	262	* info we have, they only have the head (as would be expected when
285	* they are saved).	263	* they are saved).
…		…
313	op = op->above;	291	op = op->above;
314	}	292	}
315	}	293	}
316	}	294	}
317		295
		296	//-GPL
		297
318	/*	298	/*
319	* Loads (ands parses) the objects into a given map from the specified	299	* Loads (ands parses) the objects into a given map from the specified
320	* file pointer.	300	* file pointer.
321	*/	301	*/
322	bool	302	bool
323	maptile::_load_objects (object_thawer &f)	303	maptile::_load_objects (object_thawer &f)
324	{	304	{
325	for (;;)	305	for (;;)
326	{	306	{
327	coroapi::cede_to_tick_every (100); // cede once in a while	307	coroapi::cede_to_tick (); // cede once in a while
328		308
329	switch (f.kw)	309	switch (f.kw)
330	{	310	{
331	case KW_arch:	311	case KW_arch:
332	if (object *op = object::read (f, this))	312	if (object *op = object::read (f, this))
333	{	313	{
		314	// TODO: why?
334	if (op->inv)	315	if (op->inv)
		316	{
		317	op->carrying = 0;
335	sum_weight (op);	318	op->update_weight ();
		319	}
336		320
337	insert_ob_in_map (op, this, op, INS_NO_MERGE | INS_NO_WALK_ON | INS_ON_TOP | INS_MAP_LOAD);	321	if (IN_RANGE_EXC (op->x, 0, width) && IN_RANGE_EXC (op->y, 0, height))
		322	{
		323	// we insert manually because
		324	// a) its way faster
		325	// b) we remove manually, too, and there are good reasons for that
		326	// c) it's correct
		327	mapspace &ms = at (op->x, op->y);
		328
		329	op->flag [FLAG_REMOVED] = false;
		330
		331	op->above = 0;
		332	op->below = ms.top;
		333
		334	*(ms.top ? &ms.top->above : &ms.bot) = op;
		335
		336	ms.top = op;
		337	ms.flags_ = 0;
		338	}
		339	else
		340	{
		341	f.parse_warn (format ("object %s out of range", op->debug_desc ()));
		342	op->destroy ();
		343	}
338	}	344	}
339		345
340	continue;	346	continue;
341		347
342	case KW_EOF:	348	case KW_EOF:
…		…
355	}	361	}
356		362
357	void	363	void
358	maptile::activate ()	364	maptile::activate ()
359	{	365	{
360	active = true;
361
362	if (spaces)	366	if (spaces)
363	for (mapspace *ms = spaces + size (); ms-- > spaces; )	367	for (mapspace *ms = spaces + size (); ms-- > spaces; )
364	for (object *op = ms->bot; op; op = op->above)	368	for (object *op = ms->bot; op; op = op->above)
365	op->activate_recursive ();	369	op->activate_recursive ();
366	}	370	}
367		371
368	void	372	void
369	maptile::deactivate ()	373	maptile::deactivate ()
370	{	374	{
371	active = false;
372
373	if (spaces)	375	if (spaces)
374	for (mapspace *ms = spaces + size (); ms-- > spaces; )	376	for (mapspace *ms = spaces + size (); ms-- > spaces; )
375	for (object *op = ms->bot; op; op = op->above)	377	for (object *op = ms->bot; op; op = op->above)
376	op->deactivate_recursive ();	378	op->deactivate_recursive ();
377	}	379	}
…		…
387	if (!spaces)	389	if (!spaces)
388	return false;	390	return false;
389		391
390	for (int i = 0; i < size (); ++i)	392	for (int i = 0; i < size (); ++i)
391	{	393	{
392	int unique = 0;	394	bool unique = 0;
		395
393	for (object *op = spaces [i].bot; op; op = op->above)	396	for (object *op = spaces [i].bot; op; op = op->above)
394	{	397	{
395	if (op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR])	398	unique |= op->flag [FLAG_UNIQUE] && op->flag [FLAG_IS_FLOOR];
396	unique = 1;
397		399
398	if (!op->can_map_save ())	400	if (expect_false (!op->can_map_save ()))
399	continue;	401	continue;
400		402
401	if (unique || op->flag [FLAG_UNIQUE])	403	if (expect_false (unique || op->flag [FLAG_UNIQUE]))
402	{	404	{
403	if (flags & IO_UNIQUES)	405	if (flags & IO_UNIQUES)
404	op->write (f);	406	op->write (f);
405	}	407	}
406	else if (flags & IO_OBJECTS)	408	else if (expect_true (flags & IO_OBJECTS))
407	op->write (f);	409	op->write (f);
408	}	410	}
409	}	411	}
410		412
411	coroapi::cede_to_tick ();	413	coroapi::cede_to_tick ();
412		414
413	return true;	415	return true;
414	}	416	}
415		417
416	bool	418	bool
417	maptile::_load_objects (const char *path, bool skip_header)
418	{
419	object_thawer f (path);
420
421	if (!f)
422	return false;
423
424	f.next ();
425
426	if (skip_header)
427	for (;;)
428	{
429	keyword kw = f.kw;
430	f.skip ();
431	if (kw == KW_end)
432	break;
433	}
434
435	return _load_objects (f);
436	}
437
438	bool
439	maptile::_save_objects (const char *path, int flags)	419	maptile::_save_objects (const char *path, int flags)
440	{	420	{
441	object_freezer freezer;	421	object_freezer freezer;
442		422
443	if (!_save_objects (freezer, flags))	423	if (!_save_objects (freezer, flags))
444	return false;	424	return false;
445		425
446	return freezer.save (path);	426	return freezer.save (path);
447	}	427	}
448		428
449	maptile::maptile ()	429	void
		430	maptile::init ()
450	{	431	{
451	in_memory = MAP_SWAPPED;	432	in_memory = MAP_SWAPPED;
452		433
453	/* The maps used to pick up default x and y values from the	434	/* The maps used to pick up default x and y values from the
454	* map archetype. Mimic that behaviour.	435	* map archetype. Mimic that behaviour.
455	*/	436	*/
456	width = 16;	437	width = 16;
457	height = 16;	438	height = 16;
458	timeout = 300;	439	timeout = 300;
459	max_nrof = 1000; // 1000 items of anything	440	max_items = MAX_ITEM_PER_ACTION;
460	max_volume = 2000000; // 2m³	441	max_volume = 2000000; // 2m³
461	}
462
463	maptile::maptile (int w, int h)
464	{
465	in_memory = MAP_SWAPPED;
466
467	width = w;
468	height = h;
469	reset_timeout = 0;	442	reset_timeout = 0;
470	timeout = 300;
471	enter_x = 0;	443	enter_x = 0;
472	enter_y = 0;	444	enter_y = 0;
		445	}
		446
		447	maptile::maptile ()
		448	{
		449	init ();
		450	}
		451
		452	maptile::maptile (int w, int h)
		453	{
		454	init ();
		455
		456	width = w;
		457	height = h;
473		458
474	alloc ();	459	alloc ();
475	}	460	}
476		461
477	/*	462	/*
…		…
485	if (spaces)	470	if (spaces)
486	return;	471	return;
487		472
488	spaces = salloc0<mapspace> (size ());	473	spaces = salloc0<mapspace> (size ());
489	}	474	}
		475
		476	//+GPL
490		477
491	/* Takes a string from a map definition and outputs a pointer to the array of shopitems	478	/* Takes a string from a map definition and outputs a pointer to the array of shopitems
492	* corresponding to that string. Memory is allocated for this, it must be freed	479	* corresponding to that string. Memory is allocated for this, it must be freed
493	* at a later date.	480	* at a later date.
494	* Called by parse_map_headers below.	481	* Called by parse_map_headers below.
…		…
571	return items;	558	return items;
572	}	559	}
573		560
574	/* opposite of parse string, this puts the string that was originally fed in to	561	/* opposite of parse string, this puts the string that was originally fed in to
575	* the map (or something equivilent) into output_string. */	562	* the map (or something equivilent) into output_string. */
576	static void	563	static const char *
577	print_shop_string (maptile *m, char *output_string)	564	print_shop_string (maptile *m)
578	{	565	{
579	int i;	566	static dynbuf_text buf; buf.clear ();
580	char tmp[MAX_BUF];	567	bool first = true;
581		568
582	strcpy (output_string, "");
583	for (i = 0; i < m->shopitems[0].index; i++)	569	for (int i = 0; i < m->shopitems[0].index; i++)
584	{	570	{
		571	if (!first)
		572	buf << ';';
		573
		574	first = false;
		575
585	if (m->shopitems[i].typenum)	576	if (m->shopitems[i].typenum)
586	{	577	{
587	if (m->shopitems[i].strength)	578	if (m->shopitems[i].strength)
588	sprintf (tmp, "%s:%d;", m->shopitems[i].name, m->shopitems[i].strength);	579	buf.printf ("%s:%d", m->shopitems[i].name, m->shopitems[i].strength);
589	else	580	else
590	sprintf (tmp, "%s;", m->shopitems[i].name);	581	buf.printf ("%s", m->shopitems[i].name);
591	}	582	}
592	else	583	else
593	{	584	{
594	if (m->shopitems[i].strength)	585	if (m->shopitems[i].strength)
595	sprintf (tmp, "*:%d;", m->shopitems[i].strength);	586	buf.printf ("*:%d", m->shopitems[i].strength);
596	else	587	else
597	sprintf (tmp, "*");	588	buf.printf ("*");
598	}	589	}
599
600	strcat (output_string, tmp);
601	}	590	}
		591
		592	return buf;
602	}	593	}
		594
		595	//-GPL
603		596
604	/* This loads the header information of the map. The header	597	/* This loads the header information of the map. The header
605	* contains things like difficulty, size, timeout, etc.	598	* contains things like difficulty, size, timeout, etc.
606	* this used to be stored in the map object, but with the	599	* this used to be stored in the map object, but with the
607	* addition of tiling, fields beyond that easily named in an	600	* addition of tiling, fields beyond that easily named in an
…		…
615	bool	608	bool
616	maptile::_load_header (object_thawer &thawer)	609	maptile::_load_header (object_thawer &thawer)
617	{	610	{
618	for (;;)	611	for (;;)
619	{	612	{
620	thawer.next ();
621
622	switch (thawer.kw)	613	switch (thawer.kw)
623	{	614	{
624	case KW_msg:	615	case KW_msg:
625	thawer.get_ml (KW_endmsg, msg);	616	thawer.get_ml (KW_endmsg, msg);
626	break;	617	break;
…		…
650	case KW_shopgreed: thawer.get (shopgreed); break;	641	case KW_shopgreed: thawer.get (shopgreed); break;
651	case KW_shopmin: thawer.get (shopmin); break;	642	case KW_shopmin: thawer.get (shopmin); break;
652	case KW_shopmax: thawer.get (shopmax); break;	643	case KW_shopmax: thawer.get (shopmax); break;
653	case KW_shoprace: thawer.get (shoprace); break;	644	case KW_shoprace: thawer.get (shoprace); break;
654	case KW_outdoor: thawer.get (outdoor); break;	645	case KW_outdoor: thawer.get (outdoor); break;
655	case KW_temp: thawer.get (temp); break;
656	case KW_pressure: thawer.get (pressure); break;
657	case KW_humid: thawer.get (humid); break;
658	case KW_windspeed: thawer.get (windspeed); break;
659	case KW_winddir: thawer.get (winddir); break;
660	case KW_sky: thawer.get (sky); break;
661		646
662	case KW_per_player: thawer.get (per_player); break;	647	case KW_per_player: thawer.get (per_player); break;
663	case KW_per_party: thawer.get (per_party); break;	648	case KW_per_party: thawer.get (per_party); break;
664	case KW_no_reset: thawer.get (no_reset); break;	649	case KW_no_reset: thawer.get (no_reset); break;
		650	case KW_no_drop: thawer.get (no_drop); break;
665		651
666	case KW_region: default_region = region::find (thawer.get_str ()); break;	652	case KW_region: thawer.get (default_region); break;
667	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;	653	case KW_shopitems: shopitems = parse_shop_string (thawer.get_str ()); break;
668		654
669	// old names new names	655	// old names new names
670	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;	656	case KW_hp: case KW_enter_x: thawer.get (enter_x); break;
671	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;	657	case KW_sp: case KW_enter_y: thawer.get (enter_y); break;
…		…
681	case KW_tile_path_2: thawer.get (tile_path [1]); break;	667	case KW_tile_path_2: thawer.get (tile_path [1]); break;
682	case KW_tile_path_3: thawer.get (tile_path [2]); break;	668	case KW_tile_path_3: thawer.get (tile_path [2]); break;
683	case KW_tile_path_4: thawer.get (tile_path [3]); break;	669	case KW_tile_path_4: thawer.get (tile_path [3]); break;
684		670
685	case KW_ERROR:	671	case KW_ERROR:
686	set_key (thawer.kw_str, thawer.value);	672	set_key_text (thawer.kw_str, thawer.value);
687	break;	673	break;
688		674
689	case KW_end:	675	case KW_end:
		676	thawer.next ();
690	return true;	677	return true;
691		678
692	default:	679	default:
693	if (!thawer.parse_error ("map", 0))	680	if (!thawer.parse_error ("map"))
694	return false;	681	return false;
695	break;	682	break;
696	}	683	}
		684
		685	thawer.next ();
697	}	686	}
698		687
699	abort ();	688	abort ();
700	}	689	}
701		690
702	bool	691	//+GPL
703	maptile::_load_header (const char *path)
704	{
705	object_thawer thawer (path);
706
707	if (!thawer)
708	return false;
709
710	return _load_header (thawer);
711	}
712		692
713	/******************************************************************************	693	/******************************************************************************
714	* This is the start of unique map handling code	694	* This is the start of unique map handling code
715	*****************************************************************************/	695	*****************************************************************************/
716		696
…		…
723	int unique = 0;	703	int unique = 0;
724	for (object *op = spaces [i].bot; op; )	704	for (object *op = spaces [i].bot; op; )
725	{	705	{
726	object *above = op->above;	706	object *above = op->above;
727		707
728	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	708	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
729	unique = 1;	709	unique = 1;
730		710
731	if (op->head_ () == op && (QUERY_FLAG (op, FLAG_UNIQUE) || unique))	711	if (op->head_ () == op && (op->flag [FLAG_UNIQUE] || unique))
732	{
733	op->destroy_inv (false);
734	op->destroy ();	712	op->destroy ();
735	}
736		713
737	op = above;	714	op = above;
738	}	715	}
739	}	716	}
740	}	717	}
741		718
		719	//-GPL
		720
742	bool	721	bool
743	maptile::_save_header (object_freezer &freezer)	722	maptile::_save_header (object_freezer &freezer)
744	{	723	{
745	#define MAP_OUT(k) freezer.put (KW_ ## k, k)	724	#define MAP_OUT(k) freezer.put (KW(k), k)
746	#define MAP_OUT2(k,v) freezer.put (KW_ ## k, v)	725	#define MAP_OUT2(k,v) freezer.put (KW(k), v)
747		726
748	MAP_OUT2 (arch, "map");	727	MAP_OUT2 (arch, CS(map));
749		728
750	if (name) MAP_OUT (name);	729	if (name) MAP_OUT (name);
751	MAP_OUT (swap_time);	730	MAP_OUT (swap_time);
752	MAP_OUT (reset_time);	731	MAP_OUT (reset_time);
753	MAP_OUT (reset_timeout);	732	MAP_OUT (reset_timeout);
754	MAP_OUT (fixed_resettime);	733	MAP_OUT (fixed_resettime);
755	MAP_OUT (no_reset);	734	MAP_OUT (no_reset);
		735	MAP_OUT (no_drop);
756	MAP_OUT (difficulty);	736	MAP_OUT (difficulty);
757
758	if (default_region) MAP_OUT2 (region, default_region->name);	737	if (default_region) MAP_OUT2 (region, default_region->name);
759		738
760	if (shopitems)	739	if (shopitems) MAP_OUT2 (shopitems, print_shop_string (this));
761	{
762	char shop[MAX_BUF];
763	print_shop_string (this, shop);
764	MAP_OUT2 (shopitems, shop);
765	}
766
767	MAP_OUT (shopgreed);	740	MAP_OUT (shopgreed);
768	MAP_OUT (shopmin);	741	MAP_OUT (shopmin);
769	MAP_OUT (shopmax);	742	MAP_OUT (shopmax);
770	if (shoprace) MAP_OUT (shoprace);	743	if (shoprace) MAP_OUT (shoprace);
771	MAP_OUT (darkness);	744
772	MAP_OUT (width);	745	MAP_OUT (width);
773	MAP_OUT (height);	746	MAP_OUT (height);
774	MAP_OUT (enter_x);	747	MAP_OUT (enter_x);
775	MAP_OUT (enter_y);	748	MAP_OUT (enter_y);
776		749	MAP_OUT (darkness);
777	if (msg) freezer.put (KW_msg , KW_endmsg , msg);
778	if (maplore) freezer.put (KW_maplore, KW_endmaplore, maplore);
779
780	MAP_OUT (outdoor);	750	MAP_OUT (outdoor);
781	MAP_OUT (temp);	751
782	MAP_OUT (pressure);	752	if (msg) freezer.put (KW(msg) , KW(endmsg) , msg);
783	MAP_OUT (humid);	753	if (maplore) freezer.put (KW(maplore), KW(endmaplore), maplore);
784	MAP_OUT (windspeed);
785	MAP_OUT (winddir);
786	MAP_OUT (sky);
787		754
788	MAP_OUT (per_player);	755	MAP_OUT (per_player);
789	MAP_OUT (per_party);	756	MAP_OUT (per_party);
790		757
791	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);	758	if (tile_path [0]) MAP_OUT2 (tile_path_1, tile_path [0]);
792	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);	759	if (tile_path [1]) MAP_OUT2 (tile_path_2, tile_path [1]);
793	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);	760	if (tile_path [2]) MAP_OUT2 (tile_path_3, tile_path [2]);
794	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);	761	if (tile_path [3]) MAP_OUT2 (tile_path_4, tile_path [3]);
795		762
796	freezer.put (this);	763	freezer.put (this);
797	freezer.put (KW_end);	764	freezer.put (KW(end));
798		765
799	return true;	766	return true;
800	}	767	}
801		768
802	bool	769	bool
…		…
808	return false;	775	return false;
809		776
810	return freezer.save (path);	777	return freezer.save (path);
811	}	778	}
812		779
		780	//+GPL
		781
813	/*	782	/*
814	* Remove and free all objects in the given map.	783	* Remove and free all objects in the given map.
815	*/	784	*/
816	void	785	void
817	maptile::clear ()	786	maptile::clear ()
818	{	787	{
819	sfree (regions, size ()); regions = 0;
820	delete [] regionmap; regionmap = 0;
821
822	if (spaces)	788	if (spaces)
823	{	789	{
824	for (mapspace *ms = spaces + size (); ms-- > spaces; )	790	for (mapspace *ms = spaces + size (); ms-- > spaces; )
825	while (object *op = ms->bot)	791	while (object *op = ms->bot)
826	{	792	{
		793	// manually remove, as to not trigger anything
		794	if (ms->bot = op->above)
		795	ms->bot->below = 0;
		796
		797	op->flag [FLAG_REMOVED] = true;
		798
827	op = op->head_ ();	799	object *head = op->head_ ();
828	op->destroy_inv (false);	800	if (op == head)
829	op->destroy ();	801	op->destroy ();
		802	else if (head->map != op->map)
		803	{
		804	LOG (llevDebug, "bad luck for object crossing map borders: %s", head->debug_desc ());
		805	head->destroy ();
		806	}
830	}	807	}
831		808
832	sfree (spaces, size ()), spaces = 0;	809	sfree0 (spaces, size ());
833	}	810	}
834		811
835	if (buttons)	812	if (buttons)
836	free_objectlinkpt (buttons), buttons = 0;	813	free_objectlinkpt (buttons), buttons = 0;
		814
		815	sfree0 (regions, size ());
		816	delete [] regionmap; regionmap = 0;
837	}	817	}
838		818
839	void	819	void
840	maptile::clear_header ()	820	maptile::clear_header ()
841	{	821	{
…		…
874		854
875	clear ();	855	clear ();
876	}	856	}
877		857
878	/* decay and destroy perishable items in a map */	858	/* decay and destroy perishable items in a map */
		859	// TODO: should be done regularly, not on map load?
879	void	860	void
880	maptile::do_decay_objects ()	861	maptile::do_decay_objects ()
881	{	862	{
882	if (!spaces)	863	if (!spaces)
883	return;	864	return;
…		…
885	for (mapspace *ms = spaces + size (); ms-- > spaces; )	866	for (mapspace *ms = spaces + size (); ms-- > spaces; )
886	for (object *above, *op = ms->bot; op; op = above)	867	for (object *above, *op = ms->bot; op; op = above)
887	{	868	{
888	above = op->above;	869	above = op->above;
889		870
		871	// do not decay anything above unique floor tiles (yet :)
		872	if (op->flag [FLAG_IS_FLOOR] && op->flag [FLAG_UNIQUE])
		873	break;
		874
890	bool destroy = 0;	875	bool destroy = 0;
891		876
892	// do not decay anything above unique floor tiles (yet :)	877	if (op->flag [FLAG_IS_FLOOR]
893	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))	878	|| op->flag [FLAG_OBJ_ORIGINAL]
894	break;	879	|| op->flag [FLAG_UNIQUE]
895		880	|| op->flag [FLAG_OVERLAY_FLOOR]
896	if (QUERY_FLAG (op, FLAG_IS_FLOOR)	881	|| op->flag [FLAG_UNPAID]
897	|| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
898	|| QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
899	|| QUERY_FLAG (op, FLAG_UNIQUE)
900	|| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
901	|| QUERY_FLAG (op, FLAG_UNPAID)
902	|| op->is_alive ())	882	|| op->is_alive ())
903	; // do not decay	883	; // do not decay
904	else if (op->is_weapon ())	884	else if (op->is_weapon ())
905	{	885	{
906	op->stats.dam--;	886	op->stats.dam--;
…		…
931	|| mat & M_LIQUID	911	|| mat & M_LIQUID
932	|| (mat & M_IRON && rndm (1, 5) == 1)	912	|| (mat & M_IRON && rndm (1, 5) == 1)
933	|| (mat & M_GLASS && rndm (1, 2) == 1)	913	|| (mat & M_GLASS && rndm (1, 2) == 1)
934	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)	914	|| ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
935	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)	915	|| ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
936	|| (mat & M_ICE && temp > 32))	916	//|| (mat & M_ICE && temp > 32)
		917	)
937	destroy = 1;	918	destroy = 1;
938	}	919	}
939		920
940	/* adjust overall chance below */	921	/* adjust overall chance below */
941	if (destroy && rndm (0, 1))	922	if (destroy && rndm (0, 1))
942	op->destroy ();	923	op->destroy ();
943	}
944	}
945
946	/*
947	* Updates every button on the map (by calling update_button() for them).
948	*/
949	void
950	maptile::update_buttons ()
951	{
952	for (oblinkpt *obp = buttons; obp; obp = obp->next)
953	for (objectlink *ol = obp->link; ol; ol = ol->next)
954	{
955	if (!ol->ob)
956	{
957	LOG (llevError, "Internal error in update_button (%s (%dx%d), connected %ld).\n",
958	ol->ob ? (const char *) ol->ob->name : "null", ol->ob ? ol->ob->x : -1, ol->ob ? ol->ob->y : -1, obp->value);
959	continue;
960	}
961
962	if (ol->ob->type == BUTTON || ol->ob->type == PEDESTAL)
963	{
964	update_button (ol->ob);
965	break;
966	}
967	}	924	}
968	}	925	}
969		926
970	/*	927	/*
971	* This routine is supposed to find out the difficulty of the map.	928	* This routine is supposed to find out the difficulty of the map.
972	* difficulty does not have a lot to do with character level,	929	* difficulty does not have a lot to do with character level,
973	* but does have a lot to do with treasure on the map.	930	* but does have a lot to do with treasure on the map.
974	*	931	*
975	* Difficulty can now be set by the map creature. If the value stored	932	* Difficulty can now be set by the map creator. If the value stored
976	* in the map is zero, then use this routine. Maps should really	933	* in the map is zero, then use this routine. Maps should really
977	* have a difficulty set than using this function - human calculation	934	* have a difficulty set rather than using this function - human calculation
978	* is much better than this functions guesswork.	935	* is much better than this function's guesswork.
979	*/	936	*/
980	int	937	int
981	maptile::estimate_difficulty () const	938	maptile::estimate_difficulty () const
982	{	939	{
983	long monster_cnt = 0;	940	long monster_cnt = 0;
…		…
985	sint64 total_exp = 0;	942	sint64 total_exp = 0;
986		943
987	for (mapspace *ms = spaces + size (); ms-- > spaces; )	944	for (mapspace *ms = spaces + size (); ms-- > spaces; )
988	for (object *op = ms->bot; op; op = op->above)	945	for (object *op = ms->bot; op; op = op->above)
989	{	946	{
990	if (QUERY_FLAG (op, FLAG_MONSTER))	947	if (op->flag [FLAG_MONSTER])
991	{	948	{
992	total_exp += op->stats.exp;	949	total_exp += op->stats.exp;
993	monster_cnt++;	950	monster_cnt++;
994	}	951	}
995		952
996	if (QUERY_FLAG (op, FLAG_GENERATOR))	953	if (op->flag [FLAG_GENERATOR])
997	{	954	{
998	total_exp += op->stats.exp;	955	total_exp += op->stats.exp;
999		956
1000	if (archetype *at = type_to_archetype (GENERATE_TYPE (op)))	957	if (archetype *at = op->other_arch)
		958	{
1001	total_exp += at->stats.exp * 8;	959	total_exp += at->stats.exp * 8;
1002
1003	monster_cnt++;	960	monster_cnt++;
		961	}
		962
		963	for (object *inv = op->inv; inv; inv = inv->below)
		964	{
		965	total_exp += op->stats.exp * 8;
		966	monster_cnt++;
		967	}
1004	}	968	}
1005	}	969	}
1006		970
1007	avgexp = (double) total_exp / monster_cnt;	971	avgexp = (double) total_exp / monster_cnt;
1008		972
…		…
1021	* postive values make it darker, negative make it brighter	985	* postive values make it darker, negative make it brighter
1022	*/	986	*/
1023	int	987	int
1024	maptile::change_map_light (int change)	988	maptile::change_map_light (int change)
1025	{	989	{
1026	int new_level = darkness + change;
1027
1028	/* Nothing to do */	990	/* Nothing to do */
1029	if (!change || (new_level <= 0 && darkness == 0) || (new_level >= MAX_DARKNESS && darkness >= MAX_DARKNESS))	991	if (!change)
1030	return 0;	992	return 0;
1031		993
1032	/* inform all players on the map */	994	/* inform all players on the map */
1033	if (change > 0)	995	if (change > 0)
1034	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");	996	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes darker.");
1035	else	997	else
1036	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");	998	new_info_map (NDI_BLACK | NDI_UNIQUE, this, "It becomes brighter.");
1037		999
1038	/* Do extra checking. since darkness is a unsigned value,	1000	darkness = clamp (darkness + change, -MAX_DARKNESS, MAX_DARKNESS);
1039	* we need to be extra careful about negative values.
1040	* In general, the checks below are only needed if change
1041	* is not +/-1
1042	*/
1043	if (new_level < 0)
1044	darkness = 0;
1045	else if (new_level >= MAX_DARKNESS)
1046	darkness = MAX_DARKNESS;
1047	else
1048	darkness = new_level;
1049		1001
1050	/* All clients need to get re-updated for the change */	1002	/* All clients need to get re-updated for the change */
1051	update_all_map_los (this);	1003	update_all_map_los (this);
		1004
1052	return 1;	1005	return 1;
1053	}	1006	}
1054		1007
1055	/*	1008	/*
1056	* This function updates various attributes about a specific space	1009	* This function updates various attributes about a specific space
…		…
1059	* through, etc)	1012	* through, etc)
1060	*/	1013	*/
1061	void	1014	void
1062	mapspace::update_ ()	1015	mapspace::update_ ()
1063	{	1016	{
1064	object *tmp, *last = 0;	1017	object *last = 0;
1065	uint8 flags = P_UPTODATE, light = 0, anywhere = 0;	1018	uint8 flags = P_UPTODATE;
		1019	sint8 light = 0;
1066	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;	1020	MoveType move_block = 0, move_slow = 0, move_on = 0, move_off = 0, move_allow = 0;
		1021	uint64_t volume = 0;
		1022	uint32_t items = 0;
		1023	object *anywhere = 0;
		1024	uint8_t middle_visibility = 0;
1067		1025
1068	//object *middle = 0;	1026	//object *middle = 0;
1069	//object *top = 0;	1027	//object *top = 0;
1070	//object *floor = 0;	1028	//object *floor = 0;
1071	// this seems to generate better code than using locals, above	1029	// this seems to generate better code than using locals, above
1072	object *&top = faces_obj[0] = 0;	1030	object *&top = faces_obj[0] = 0;
1073	object *&middle = faces_obj[1] = 0;	1031	object *&middle = faces_obj[1] = 0;
1074	object *&floor = faces_obj[2] = 0;	1032	object *&floor = faces_obj[2] = 0;
1075		1033
		1034	object::flags_t allflags; // all flags of all objects or'ed together
		1035
1076	for (tmp = bot; tmp; last = tmp, tmp = tmp->above)	1036	for (object *tmp = bot; tmp; last = tmp, tmp = tmp->above)
1077	{	1037	{
1078	/* This could be made additive I guess (two lights better than	1038	// Lights are additive, up to MAX_LIGHT_RADIUS, see los.C)
1079	* one). But if so, it shouldn't be a simple additive - 2
1080	* light bulbs do not illuminate twice as far as once since
1081	* it is a dissapation factor that is cubed.
1082	*/
1083	if (tmp->glow_radius > light)
1084	light = tmp->glow_radius;	1039	light += tmp->glow_radius;
1085		1040
1086	/* This call is needed in order to update objects the player	1041	/* This call is needed in order to update objects the player
1087	* is standing in that have animations (ie, grass, fire, etc).	1042	* is standing in that have animations (ie, grass, fire, etc).
1088	* However, it also causes the look window to be re-drawn	1043	* However, it also causes the look window to be re-drawn
1089	* 3 times each time the player moves, because many of the	1044	* 3 times each time the player moves, because many of the
1090	* functions the move_player calls eventualy call this.	1045	* functions the move_player calls eventualy call this.
1091	*	1046	*
1092	* Always put the player down for drawing.	1047	* Always put the player down for drawing.
1093	*/	1048	*/
1094	if (!tmp->invisible)	1049	if (expect_true (!tmp->invisible))
1095	{	1050	{
1096	if ((tmp->type == PLAYER || QUERY_FLAG (tmp, FLAG_MONSTER)))	1051	if (expect_false (tmp->type == PLAYER || tmp->flag [FLAG_MONSTER]))
1097	top = tmp;	1052	top = tmp;
1098	else if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1053	else if (expect_false (tmp->flag [FLAG_IS_FLOOR]))
1099	{	1054	{
1100	/* If we got a floor, that means middle and top were below it,	1055	/* If we got a floor, that means middle and top were below it,
1101	* so should not be visible, so we clear them.	1056	* so should not be visible, so we clear them.
1102	*/	1057	*/
1103	middle = 0;	1058	middle = 0;
1104	top = 0;	1059	top = 0;
1105	floor = tmp;	1060	floor = tmp;
		1061	volume = 0;
		1062	items = 0;
1106	}	1063	}
1107	/* Flag anywhere have high priority */	1064	else
1108	else if (QUERY_FLAG (tmp, FLAG_SEE_ANYWHERE))
1109	{	1065	{
		1066	if (expect_true (!tmp->flag [FLAG_NO_PICK]))
		1067	{
		1068	++items;
		1069	volume += tmp->volume ();
		1070	}
		1071
		1072	/* Flag anywhere have high priority */
		1073	if (expect_false (tmp->flag [FLAG_SEE_ANYWHERE]))
		1074	anywhere = tmp;
		1075
		1076	/* Find the highest visible face around. If equal
		1077	* visibilities, we still want the one nearer to the
		1078	* top
		1079	*/
		1080	if (expect_false (::faces [tmp->face].visibility >= middle_visibility))
		1081	{
		1082	middle_visibility = ::faces [tmp->face].visibility;
1110	middle = tmp;	1083	middle = tmp;
1111	anywhere = 1;	1084	}
1112	}	1085	}
1113	/* Find the highest visible face around. If equal
1114	* visibilities, we still want the one nearer to the
1115	* top
1116	*/
1117	else if (!middle || (::faces [tmp->face].visibility > ::faces [middle->face].visibility && !anywhere))
1118	middle = tmp;
1119	}
1120
1121	if (tmp == tmp->above)
1122	{
1123	LOG (llevError, "Error in structure of map\n");
1124	exit (-1);
1125	}	1086	}
1126		1087
1127	move_slow |= tmp->move_slow;	1088	move_slow |= tmp->move_slow;
1128	move_block |= tmp->move_block;	1089	move_block |= tmp->move_block;
1129	move_on |= tmp->move_on;	1090	move_on |= tmp->move_on;
1130	move_off |= tmp->move_off;	1091	move_off |= tmp->move_off;
1131	move_allow |= tmp->move_allow;	1092	move_allow |= tmp->move_allow;
1132		1093
1133	if (QUERY_FLAG (tmp, FLAG_BLOCKSVIEW)) flags |= P_BLOCKSVIEW;	1094	allflags |= tmp->flag;
1134	if (QUERY_FLAG (tmp, FLAG_NO_MAGIC)) flags |= P_NO_MAGIC;	1095
1135	if (tmp->type == PLAYER) flags |= P_PLAYER;	1096	if (tmp->type == PLAYER) flags |= P_PLAYER;
1136	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;	1097	if (tmp->type == SAFE_GROUND) flags |= P_SAFE;
1137	if (QUERY_FLAG (tmp, FLAG_ALIVE)) flags |= P_IS_ALIVE;
1138	if (QUERY_FLAG (tmp, FLAG_DAMNED)) flags |= P_NO_CLERIC;
1139	}	1098	}
1140		1099
1141	this->light = light;	1100	// FLAG_SEE_ANYWHERE takes precedence
		1101	if (anywhere)
		1102	middle = anywhere;
		1103
		1104	// ORing all flags together and checking them here is much faster
		1105	if (allflags [FLAG_BLOCKSVIEW]) flags |= P_BLOCKSVIEW;
		1106	if (allflags [FLAG_NO_MAGIC] ) flags |= P_NO_MAGIC;
		1107	if (allflags [FLAG_ALIVE] ) flags |= P_IS_ALIVE;
		1108	if (allflags [FLAG_DAMNED] ) flags |= P_NO_CLERIC;
		1109
		1110	this->light = min (light, MAX_LIGHT_RADIUS);
1142	this->flags_ = flags;	1111	this->flags_ = flags;
1143	this->move_block = move_block & ~move_allow;	1112	this->move_block = move_block & ~move_allow;
1144	this->move_on = move_on;	1113	this->move_on = move_on;
1145	this->move_off = move_off;	1114	this->move_off = move_off;
1146	this->move_slow = move_slow;	1115	this->move_slow = move_slow;
		1116	this->volume_ = (volume + 1023) / 1024;
		1117	this->items_ = upos_min (items, 65535); // assume nrof <= 2**31
1147		1118
1148	/* At this point, we have a floor face (if there is a floor),	1119	/* At this point, we have a floor face (if there is a floor),
1149	* and the floor is set - we are not going to touch it at	1120	* and the floor is set - we are not going to touch it at
1150	* this point.	1121	* this point.
1151	* middle contains the highest visibility face.	1122	* middle contains the highest visibility face.
…		…
1166	* 1) top face is set, need middle to be set.	1137	* 1) top face is set, need middle to be set.
1167	* 2) middle is set, need to set top.	1138	* 2) middle is set, need to set top.
1168	* 3) neither middle or top is set - need to set both.	1139	* 3) neither middle or top is set - need to set both.
1169	*/	1140	*/
1170		1141
1171	for (tmp = last; tmp; tmp = tmp->below)	1142	for (object *tmp = last; tmp; tmp = tmp->below)
1172	{	1143	{
1173	/* Once we get to a floor, stop, since we already have a floor object */	1144	/* Once we get to a floor, stop, since we already have a floor object */
1174	if (QUERY_FLAG (tmp, FLAG_IS_FLOOR))	1145	if (tmp->flag [FLAG_IS_FLOOR])
1175	break;	1146	break;
1176		1147
1177	/* If two top faces are already set, quit processing */	1148	/* If two top faces are already set, quit processing */
1178	if (top && middle)	1149	if (top && middle)
1179	break;	1150	break;
…		…
1217	faces_obj [1] = middle;	1188	faces_obj [1] = middle;
1218	faces_obj [2] = floor;	1189	faces_obj [2] = floor;
1219	#endif	1190	#endif
1220	}	1191	}
1221		1192
1222	uint64	1193	maptile *
1223	mapspace::volume () const	1194	maptile::tile_available (int dir, bool load)
1224	{	1195	{
1225	uint64 vol = 0;	1196	if (tile_path[dir])
1226
1227	for (object *op = top; op && !op->flag [FLAG_NO_PICK]; op = op->below)
1228	vol += op->volume ();
1229
1230	return vol;
1231	}
1232
1233	/* this updates the orig_map->tile_map[tile_num] value after finding
1234	* the map. It also takes care of linking back the freshly found
1235	* maps tile_map values if it tiles back to this one. It returns
1236	* the value of orig_map->tile_map[tile_num].
1237	*/
1238	static inline maptile *
1239	find_and_link (maptile *orig_map, int tile_num)
1240	{
1241	maptile *mp = orig_map->tile_map [tile_num];
1242
1243	if (!mp)
1244	{
1245	mp = orig_map->find_sync (orig_map->tile_path [tile_num], orig_map);
1246
1247	if (!mp)
1248	{
1249	// emergency mode, manufacture a dummy map, this creates a memleak, but thats fine
1250	LOG (llevError, "FATAL: cannot load tiled map %s from %s, leaking memory and worse!\n",
1251	&orig_map->tile_path[tile_num], &orig_map->path);
1252	mp = new maptile (1, 1);
1253	mp->alloc ();
1254	mp->in_memory = MAP_IN_MEMORY;
1255	}
1256	}	1197	{
		1198	if (tile_map[dir] && (!load || tile_map[dir]->in_memory == MAP_ACTIVE))
		1199	return tile_map[dir];
1257		1200
1258	int dest_tile = (tile_num + 2) % 4;	1201	if ((tile_map[dir] = find_async (tile_path[dir], this, load)))
		1202	return tile_map[dir];
		1203	}
1259		1204
1260	orig_map->tile_map [tile_num] = mp;
1261
1262	// optimisation: back-link map to origin map if euclidean
1263	//TODO: non-euclidean maps MUST GO
1264	if (orig_map->tile_map[tile_num]->tile_path[dest_tile] == orig_map->path)
1265	orig_map->tile_map[tile_num]->tile_map[dest_tile] = orig_map;
1266
1267	return mp;	1205	return 0;
1268	}
1269
1270	static inline void
1271	load_and_link (maptile *orig_map, int tile_num)
1272	{
1273	find_and_link (orig_map, tile_num)->load_sync ();
1274	}	1206	}
1275		1207
1276	/* this returns TRUE if the coordinates (x,y) are out of	1208	/* this returns TRUE if the coordinates (x,y) are out of
1277	* map m. This function also takes into account any	1209	* map m. This function also takes into account any
1278	* tiling considerations, loading adjacant maps as needed.	1210	* tiling considerations, loading adjacant maps as needed.
…		…
1291	if (!m)	1223	if (!m)
1292	return 0;	1224	return 0;
1293		1225
1294	if (x < 0)	1226	if (x < 0)
1295	{	1227	{
1296	if (!m->tile_path[3])	1228	if (!m->tile_available (3))
1297	return 1;	1229	return 1;
1298		1230
1299	if (!m->tile_map[3] || m->tile_map[3]->in_memory != MAP_IN_MEMORY)
1300	find_and_link (m, 3);
1301
1302	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);	1231	return out_of_map (m->tile_map[3], x + m->tile_map[3]->width, y);
1303	}	1232	}
1304		1233
1305	if (x >= m->width)	1234	if (x >= m->width)
1306	{	1235	{
1307	if (!m->tile_path[1])	1236	if (!m->tile_available (1))
1308	return 1;	1237	return 1;
1309		1238
1310	if (!m->tile_map[1] || m->tile_map[1]->in_memory != MAP_IN_MEMORY)
1311	find_and_link (m, 1);
1312
1313	return out_of_map (m->tile_map[1], x - m->width, y);	1239	return out_of_map (m->tile_map[1], x - m->width, y);
1314	}	1240	}
1315		1241
1316	if (y < 0)	1242	if (y < 0)
1317	{	1243	{
1318	if (!m->tile_path[0])	1244	if (!m->tile_available (0))
1319	return 1;	1245	return 1;
1320		1246
1321	if (!m->tile_map[0] || m->tile_map[0]->in_memory != MAP_IN_MEMORY)
1322	find_and_link (m, 0);
1323
1324	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);	1247	return out_of_map (m->tile_map[0], x, y + m->tile_map[0]->height);
1325	}	1248	}
1326		1249
1327	if (y >= m->height)	1250	if (y >= m->height)
1328	{	1251	{
1329	if (!m->tile_path[2])	1252	if (!m->tile_available (2))
1330	return 1;	1253	return 1;
1331
1332	if (!m->tile_map[2] || m->tile_map[2]->in_memory != MAP_IN_MEMORY)
1333	find_and_link (m, 2);
1334		1254
1335	return out_of_map (m->tile_map[2], x, y - m->height);	1255	return out_of_map (m->tile_map[2], x, y - m->height);
1336	}	1256	}
1337		1257
1338	/* Simple case - coordinates are within this local	1258	/* Simple case - coordinates are within this local
…		…
1352	maptile *	1272	maptile *
1353	maptile::xy_find (sint16 &x, sint16 &y)	1273	maptile::xy_find (sint16 &x, sint16 &y)
1354	{	1274	{
1355	if (x < 0)	1275	if (x < 0)
1356	{	1276	{
1357	if (!tile_path[3])	1277	if (!tile_available (3))
1358	return 0;	1278	return 0;
1359		1279
1360	find_and_link (this, 3);
1361	x += tile_map[3]->width;	1280	x += tile_map[3]->width;
1362	return tile_map[3]->xy_find (x, y);	1281	return tile_map[3]->xy_find (x, y);
1363	}	1282	}
1364		1283
1365	if (x >= width)	1284	if (x >= width)
1366	{	1285	{
1367	if (!tile_path[1])	1286	if (!tile_available (1))
1368	return 0;	1287	return 0;
1369		1288
1370	find_and_link (this, 1);
1371	x -= width;	1289	x -= width;
1372	return tile_map[1]->xy_find (x, y);	1290	return tile_map[1]->xy_find (x, y);
1373	}	1291	}
1374		1292
1375	if (y < 0)	1293	if (y < 0)
1376	{	1294	{
1377	if (!tile_path[0])	1295	if (!tile_available (0))
1378	return 0;	1296	return 0;
1379		1297
1380	find_and_link (this, 0);
1381	y += tile_map[0]->height;	1298	y += tile_map[0]->height;
1382	return tile_map[0]->xy_find (x, y);	1299	return tile_map[0]->xy_find (x, y);
1383	}	1300	}
1384		1301
1385	if (y >= height)	1302	if (y >= height)
1386	{	1303	{
1387	if (!tile_path[2])	1304	if (!tile_available (2))
1388	return 0;	1305	return 0;
1389		1306
1390	find_and_link (this, 2);
1391	y -= height;	1307	y -= height;
1392	return tile_map[2]->xy_find (x, y);	1308	return tile_map[2]->xy_find (x, y);
1393	}	1309	}
1394		1310
1395	/* Simple case - coordinates are within this local	1311	/* Simple case - coordinates are within this local
…		…
1401	/**	1317	/**
1402	* Return whether map2 is adjacent to map1. If so, store the distance from	1318	* Return whether map2 is adjacent to map1. If so, store the distance from
1403	* map1 to map2 in dx/dy.	1319	* map1 to map2 in dx/dy.
1404	*/	1320	*/
1405	int	1321	int
1406	adjacent_map (const maptile *map1, const maptile *map2, int *dx, int *dy)	1322	adjacent_map (maptile *map1, maptile *map2, int *dx, int *dy)
1407	{	1323	{
1408	if (!map1 || !map2)	1324	if (!map1 || !map2)
1409	return 0;	1325	return 0;
1410		1326
1411	//TODO: this doesn't actually check corretcly when intermediate maps are not loaded	1327	//TODO: this doesn't actually check correctly when intermediate maps are not loaded
1412	//fix: compare paths instead (this is likely faster, too!)	1328	//fix: compare paths instead (this is likely faster, too!)
1413	if (map1 == map2)	1329	if (map1 == map2)
1414	{	1330	{
1415	*dx = 0;	1331	*dx = 0;
1416	*dy = 0;	1332	*dy = 0;
1417	}	1333	}
1418	else if (map1->tile_map[0] == map2)	1334	else if (map1->tile_available (0, false) == map2)
1419	{ /* up */	1335	{ /* up */
1420	*dx = 0;	1336	*dx = 0;
1421	*dy = -map2->height;	1337	*dy = -map2->height;
1422	}	1338	}
1423	else if (map1->tile_map[1] == map2)	1339	else if (map1->tile_available (1, false) == map2)
1424	{ /* right */	1340	{ /* right */
1425	*dx = map1->width;	1341	*dx = map1->width;
1426	*dy = 0;	1342	*dy = 0;
1427	}	1343	}
1428	else if (map1->tile_map[2] == map2)	1344	else if (map1->tile_available (2, false) == map2)
1429	{ /* down */	1345	{ /* down */
1430	*dx = 0;	1346	*dx = 0;
1431	*dy = map1->height;	1347	*dy = map1->height;
1432	}	1348	}
1433	else if (map1->tile_map[3] == map2)	1349	else if (map1->tile_available (3, false) == map2)
1434	{ /* left */	1350	{ /* left */
1435	*dx = -map2->width;	1351	*dx = -map2->width;
1436	*dy = 0;	1352	*dy = 0;
1437	}	1353	}
1438	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[1] == map2)	1354	else if (map1->tile_map[0] && map1->tile_map[0]->tile_available (1, false) == map2)
1439	{ /* up right */	1355	{ /* up right */
1440	*dx = map1->tile_map[0]->width;	1356	*dx = map1->tile_map[0]->width;
1441	*dy = -map1->tile_map[0]->height;	1357	*dy = -map1->tile_map[0]->height;
1442	}	1358	}
1443	else if (map1->tile_map[0] && map1->tile_map[0]->tile_map[3] == map2)	1359	else if (map1->tile_map[0] && map1->tile_map[0]->tile_available (3, false) == map2)
1444	{ /* up left */	1360	{ /* up left */
1445	*dx = -map2->width;	1361	*dx = -map2->width;
1446	*dy = -map1->tile_map[0]->height;	1362	*dy = -map1->tile_map[0]->height;
1447	}	1363	}
1448	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[0] == map2)	1364	else if (map1->tile_map[1] && map1->tile_map[1]->tile_available (0, false) == map2)
1449	{ /* right up */	1365	{ /* right up */
1450	*dx = map1->width;	1366	*dx = map1->width;
1451	*dy = -map2->height;	1367	*dy = -map2->height;
1452	}	1368	}
1453	else if (map1->tile_map[1] && map1->tile_map[1]->tile_map[2] == map2)	1369	else if (map1->tile_map[1] && map1->tile_map[1]->tile_available (2, false) == map2)
1454	{ /* right down */	1370	{ /* right down */
1455	*dx = map1->width;	1371	*dx = map1->width;
1456	*dy = map1->tile_map[1]->height;	1372	*dy = map1->tile_map[1]->height;
1457	}	1373	}
1458	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[1] == map2)	1374	else if (map1->tile_map[2] && map1->tile_map[2]->tile_available (1, false) == map2)
1459	{ /* down right */	1375	{ /* down right */
1460	*dx = map1->tile_map[2]->width;	1376	*dx = map1->tile_map[2]->width;
1461	*dy = map1->height;	1377	*dy = map1->height;
1462	}	1378	}
1463	else if (map1->tile_map[2] && map1->tile_map[2]->tile_map[3] == map2)	1379	else if (map1->tile_map[2] && map1->tile_map[2]->tile_available (3, false) == map2)
1464	{ /* down left */	1380	{ /* down left */
1465	*dx = -map2->width;	1381	*dx = -map2->width;
1466	*dy = map1->height;	1382	*dy = map1->height;
1467	}	1383	}
1468	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[0] == map2)	1384	else if (map1->tile_map[3] && map1->tile_map[3]->tile_available (0, false) == map2)
1469	{ /* left up */	1385	{ /* left up */
1470	*dx = -map1->tile_map[3]->width;	1386	*dx = -map1->tile_map[3]->width;
1471	*dy = -map2->height;	1387	*dy = -map2->height;
1472	}	1388	}
1473	else if (map1->tile_map[3] && map1->tile_map[3]->tile_map[2] == map2)	1389	else if (map1->tile_map[3] && map1->tile_map[3]->tile_available (2, false) == map2)
1474	{ /* left down */	1390	{ /* left down */
1475	*dx = -map1->tile_map[3]->width;	1391	*dx = -map1->tile_map[3]->width;
1476	*dy = map1->tile_map[3]->height;	1392	*dy = map1->tile_map[3]->height;
1477	}	1393	}
1478	else	1394	else
…		…
1517	*	1433	*
1518	* currently, the only flag supported (0x1) is don't translate for	1434	* currently, the only flag supported (0x1) is don't translate for
1519	* closest body part of 'op1'	1435	* closest body part of 'op1'
1520	*/	1436	*/
1521	void	1437	void
1522	get_rangevector (object *op1, object *op2, rv_vector * retval, int flags)	1438	get_rangevector (object *op1, object *op2, rv_vector *retval, int flags)
1523	{	1439	{
1524	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))	1440	if (!adjacent_map (op1->map, op2->map, &retval->distance_x, &retval->distance_y))
1525	{	1441	{
1526	/* be conservative and fill in _some_ data */	1442	/* be conservative and fill in _some_ data */
1527	retval->distance = 10000;	1443	retval->distance = 10000;
1528	retval->distance_x = 10000;	1444	retval->distance_x = 10000;
1529	retval->distance_y = 10000;	1445	retval->distance_y = 10000;
1530	retval->direction = 0;	1446	retval->direction = 0;
1531	retval->part = 0;	1447	retval->part = 0;
1532	}	1448	}
1533	else	1449	else
1534	{	1450	{
1535	object *best;
1536
1537	retval->distance_x += op2->x - op1->x;	1451	retval->distance_x += op2->x - op1->x;
1538	retval->distance_y += op2->y - op1->y;	1452	retval->distance_y += op2->y - op1->y;
1539		1453
1540	best = op1;	1454	object *best = op1;
		1455
1541	/* If this is multipart, find the closest part now */	1456	/* If this is multipart, find the closest part now */
1542	if (!(flags & 0x1) && op1->more)	1457	if (!(flags & 1) && op1->more)
1543	{	1458	{
1544	int best_distance = retval->distance_x * retval->distance_x + retval->distance_y * retval->distance_y, tmpi;	1459	int best_distance = idistance (retval->distance_x, retval->distance_y);
1545		1460
1546	/* we just take the offset of the piece to head to figure	1461	/* we just take the offset of the piece to head to figure
1547	* distance instead of doing all that work above again	1462	* distance instead of doing all that work above again
1548	* since the distance fields we set above are positive in the	1463	* since the distance fields we set above are positive in the
1549	* same axis as is used for multipart objects, the simply arithmetic	1464	* same axis as is used for multipart objects, the simply arithmetic
1550	* below works.	1465	* below works.
1551	*/	1466	*/
1552	for (object *tmp = op1->more; tmp; tmp = tmp->more)	1467	for (object *tmp = op1->more; tmp; tmp = tmp->more)
1553	{	1468	{
1554	tmpi = (op1->x - tmp->x + retval->distance_x) * (op1->x - tmp->x + retval->distance_x) +	1469	int tmpi = idistance (op1->x - tmp->x + retval->distance_x, op1->y - tmp->y + retval->distance_y);
1555	(op1->y - tmp->y + retval->distance_y) * (op1->y - tmp->y + retval->distance_y);	1470
1556	if (tmpi < best_distance)	1471	if (tmpi < best_distance)
1557	{	1472	{
1558	best_distance = tmpi;	1473	best_distance = tmpi;
1559	best = tmp;	1474	best = tmp;
1560	}	1475	}
1561	}	1476	}
1562		1477
1563	if (best != op1)	1478	if (best != op1)
1564	{	1479	{
1565	retval->distance_x += op1->x - best->x;	1480	retval->distance_x += op1->x - best->x;
1566	retval->distance_y += op1->y - best->y;	1481	retval->distance_y += op1->y - best->y;
1567	}	1482	}
1568	}	1483	}
1569		1484
1570	retval->part = best;	1485	retval->part = best;
1571	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));	1486	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1572	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1487	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1573	}	1488	}
1574	}	1489	}
1575		1490
1576	/* this is basically the same as get_rangevector above, but instead of	1491	/* this is basically the same as get_rangevector above, but instead of
1577	* the first parameter being an object, it instead is the map	1492	* the first parameter being an object, it instead is the map
…		…
1582	* be more consistant with the above function and also in case they are needed	1497	* be more consistant with the above function and also in case they are needed
1583	* for something in the future. Also, since no object is pasted, the best	1498	* for something in the future. Also, since no object is pasted, the best
1584	* field of the rv_vector is set to NULL.	1499	* field of the rv_vector is set to NULL.
1585	*/	1500	*/
1586	void	1501	void
1587	get_rangevector_from_mapcoord (const maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)	1502	get_rangevector_from_mapcoord (maptile *m, int x, int y, const object *op2, rv_vector *retval, int flags)
1588	{	1503	{
1589	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))	1504	if (!adjacent_map (m, op2->map, &retval->distance_x, &retval->distance_y))
1590	{	1505	{
1591	/* be conservative and fill in _some_ data */	1506	/* be conservative and fill in _some_ data */
1592	retval->distance = 100000;	1507	retval->distance = 100000;
1593	retval->distance_x = 32767;	1508	retval->distance_x = 32767;
1594	retval->distance_y = 32767;	1509	retval->distance_y = 32767;
1595	retval->direction = 0;	1510	retval->direction = 0;
1596	retval->part = 0;	1511	retval->part = 0;
1597	}	1512	}
1598	else	1513	else
1599	{	1514	{
1600	retval->distance_x += op2->x - x;	1515	retval->distance_x += op2->x - x;
1601	retval->distance_y += op2->y - y;	1516	retval->distance_y += op2->y - y;
1602		1517
1603	retval->part = NULL;	1518	retval->part = 0;
1604	retval->distance = idistance (retval->distance_x, retval->distance_y);	1519	retval->distance = upos_max (abs (retval->distance_x), abs (retval->distance_y));
1605	retval->direction = find_dir_2 (-retval->distance_x, -retval->distance_y);	1520	retval->direction = find_dir_2 (retval->distance_x, retval->distance_y);
1606	}	1521	}
1607	}	1522	}
1608		1523
1609	/* Returns true of op1 and op2 are effectively on the same map	1524	/* Returns true of op1 and op2 are effectively on the same map
1610	* (as related to map tiling). Note that this looks for a path from	1525	* (as related to map tiling). Note that this looks for a path from
…		…
1620	int dx, dy;	1535	int dx, dy;
1621		1536
1622	return adjacent_map (op1->map, op2->map, &dx, &dy);	1537	return adjacent_map (op1->map, op2->map, &dx, &dy);
1623	}	1538	}
1624		1539
		1540	//-GPL
		1541
1625	object *	1542	object *
1626	maptile::insert (object *op, int x, int y, object *originator, int flags)	1543	maptile::insert (object *op, int x, int y, object *originator, int flags)
1627	{	1544	{
1628	if (!op->flag [FLAG_REMOVED])
1629	op->remove ();
1630
1631	return insert_ob_in_map_at (op, this, originator, flags, x, y);	1545	return insert_ob_in_map_at (op, this, originator, flags, x, y);
1632	}	1546	}
1633		1547
1634	region *	1548	region *
1635	maptile::region (int x, int y) const	1549	maptile::region (int x, int y) const
…		…
1644	return default_region;	1558	return default_region;
1645		1559
1646	return ::region::default_region ();	1560	return ::region::default_region ();
1647	}	1561	}
1648		1562
		1563	//+GPL
		1564
1649	/* picks a random object from a style map.	1565	/* picks a random object from a style map.
1650	* Redone by MSW so it should be faster and not use static
1651	* variables to generate tables.
1652	*/	1566	*/
1653	object *	1567	object *
1654	maptile::pick_random_object () const	1568	maptile::pick_random_object (rand_gen &gen) const
1655	{	1569	{
1656	/* while returning a null object will result in a crash, that	1570	/* while returning a null object will result in a crash, that
1657	* is actually preferable to an infinite loop. That is because	1571	* is actually preferable to an infinite loop. That is because
1658	* most servers will automatically restart in case of crash.	1572	* most servers will automatically restart in case of crash.
1659	* Change the logic on getting the random space - shouldn't make	1573	* Change the logic on getting the random space - shouldn't make
1660	* any difference, but this seems clearer to me.	1574	* any difference, but this seems clearer to me.
1661	*/	1575	*/
1662	for (int i = 1000; --i;)	1576	for (int i = 1000; --i;)
1663	{	1577	{
1664	object *pick = at (rndm (width), rndm (height)).bot;	1578	object *pick = at (gen (width), gen (height)).bot;
1665		1579
1666	// do not prefer big monsters just because they are big.	1580	// must be head: do not prefer big monsters just because they are big.
1667	if (pick && pick->head_ () == pick)	1581	if (pick && pick->is_head ())
1668	return pick->head_ ();	1582	return pick;
1669	}	1583	}
1670		1584
1671	// instead of crashing in the unlikely(?) case, try to return *something*	1585	// instead of crashing in the unlikely(?) case, try to return *something*
1672	return get_archetype ("blocked");	1586	return archetype::find (shstr_bug);
1673	}	1587	}
		1588
		1589	//-GPL
1674		1590
1675	void	1591	void
1676	maptile::play_sound (faceidx sound, int x, int y) const	1592	maptile::play_sound (faceidx sound, int x, int y) const
1677	{	1593	{
1678	if (!sound)	1594	if (!sound)
1679	return;	1595	return;
1680		1596
		1597	for_all_players_on_map (pl, this)
		1598	if (client *ns = pl->ns)
		1599	{
		1600	int dx = x - pl->ob->x;
		1601	int dy = y - pl->ob->y;
		1602
		1603	int distance = idistance (dx, dy);
		1604
		1605	if (distance <= MAX_SOUND_DISTANCE)
		1606	ns->play_sound (sound, dx, dy);
		1607	}
		1608	}
		1609
		1610	void
		1611	maptile::say_msg (const char *msg, int x, int y) const
		1612	{
1681	for_all_players (pl)	1613	for_all_players (pl)
1682	if (pl->ob->map == this)
1683	if (client *ns = pl->ns)	1614	if (client *ns = pl->ns)
1684	{	1615	{
1685	int dx = x - pl->ob->x;	1616	int dx = x - pl->ob->x;
1686	int dy = y - pl->ob->y;	1617	int dy = y - pl->ob->y;
1687		1618
1688	int distance = idistance (dx, dy);	1619	int distance = idistance (dx, dy);
1689		1620
1690	if (distance <= MAX_SOUND_DISTANCE)	1621	if (distance <= MAX_SOUND_DISTANCE)
1691	ns->play_sound (sound, dx, dy);	1622	ns->send_msg (NDI_GREY | NDI_DEF, SAY_CHANNEL, msg);
1692	}	1623	}
1693	}	1624	}
1694		1625
		1626	dynbuf mapwalk_buf (sizeof (maprect) * 25, sizeof (maprect) * 25);
		1627
		1628	static void
		1629	split_to_tiles (dynbuf &buf, maptile *m, int x0, int y0, int x1, int y1, int dx, int dy)
		1630	{
		1631	// clip to map to the left
		1632	if (x0 < 0)
		1633	{
		1634	if (maptile *tile = m->tile_available (TILE_LEFT, 1))
		1635	split_to_tiles (buf, tile, x0 + tile->width, y0, min (x1 + tile->width, tile->width), y1, dx - tile->width, dy);
		1636
		1637	if (x1 < 0) // entirely to the left
		1638	return;
		1639
		1640	x0 = 0;
		1641	}
		1642
		1643	// clip to map to the right
		1644	if (x1 > m->width)
		1645	{
		1646	if (maptile *tile = m->tile_available (TILE_RIGHT, 1))
		1647	split_to_tiles (buf, tile, max (x0 - m->width, 0), y0, x1 - m->width, y1, dx + m->width, dy);
		1648
		1649	if (x0 > m->width) // entirely to the right
		1650	return;
		1651
		1652	x1 = m->width;
		1653	}
		1654
		1655	// clip to map above
		1656	if (y0 < 0)
		1657	{
		1658	if (maptile *tile = m->tile_available (TILE_UP, 1))
		1659	split_to_tiles (buf, tile, x0, y0 + tile->height, x1, min (y1 + tile->height, tile->height), dx, dy - tile->height);
		1660
		1661	if (y1 < 0) // entirely above
		1662	return;
		1663
		1664	y0 = 0;
		1665	}
		1666
		1667	// clip to map below
		1668	if (y1 > m->height)
		1669	{
		1670	if (maptile *tile = m->tile_available (TILE_DOWN, 1))
		1671	split_to_tiles (buf, tile, x0, max (y0 - m->height, 0), x1, y1 - m->height, dx, dy + m->height);
		1672
		1673	if (y0 > m->height) // entirely below
		1674	return;
		1675
		1676	y1 = m->height;
		1677	}
		1678
		1679	// if we get here, the rect is within the current map
		1680	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1681
		1682	r->m = m;
		1683	r->x0 = x0;
		1684	r->y0 = y0;
		1685	r->x1 = x1;
		1686	r->y1 = y1;
		1687	r->dx = dx;
		1688	r->dy = dy;
		1689	}
		1690
		1691	maprect *
		1692	maptile::split_to_tiles (dynbuf &buf, int x0, int y0, int x1, int y1)
		1693	{
		1694	buf.clear ();
		1695
		1696	::split_to_tiles (buf, this, x0, y0, x1, y1, 0, 0);
		1697
		1698	// add end marker
		1699	maprect *r = (maprect *)buf.alloc (sizeof (maprect));
		1700	r->m = 0;
		1701
		1702	return (maprect *)buf.linearise ();
		1703	}
		1704

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