server/random_maps/random_map.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2001 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992 Frank Tore Johansen
 * 
 * Deliantra is free software: you can redistribute it and/or modify it under
 * the terms of the Affero GNU General Public License as published by the
 * Free Software Foundation, either version 3 of the License, or (at your
 * option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the Affero GNU General Public License
 * and the GNU General Public License along with this program. If not, see
 * <http://www.gnu.org/licenses/>.
 * 
 * The authors can be reached via e-mail to <support@deliantra.net>
 */

#include <time.h>
#include <stdio.h>
#include <global.h>
#include <random_map.h>
#include <rproto.h>
#include <sproto.h>

#define CEDE coroapi::cede_to_tick ()

random_map_params::random_map_params ()
{
  hv = newHV ();
}

random_map_params::random_map_params (HV *hv)
{
  this->hv = (HV *)SvREFCNT_inc_NN ((SV *)hv);

  assign (wall_name, get_str ("wall_name"));

  xsize               = get_iv ("xsize");
  ysize               = get_iv ("ysize");
  expand2x            = get_iv ("expand2x");
  layoutoptions1      = get_iv ("layoutoptions1");
  layoutoptions2      = get_iv ("layoutoptions2");
  layoutoptions3      = get_iv ("layoutoptions3");
  symmetry            = get_iv ("symmetry");
  difficulty          = get_iv ("difficulty");
  difficulty_given    = get_iv ("difficulty_given");
  difficulty_increase = get_nv ("difficulty_increase");
  dungeon_level       = get_iv ("dungeon_level");
  dungeon_depth       = get_iv ("dungeon_depth");
  orientation         = get_iv ("orientation");
  random_seed         = get_uv ("random_seed");
  total_map_hp        = get_nv ("total_map_hp"); // actually val64, but I am too lazy
  map_layout_style    = get_iv ("map_layout_style");
  symmetry_used       = get_iv ("symmetry_used");
}

random_map_params::~random_map_params ()
{
  SvREFCNT_dec (hv);
}

shstr_tmp
random_map_params::as_shstr () const
{
  set ("xsize"              , xsize);
  set ("ysize"              , ysize);
  set ("layoutoptions1"     , layoutoptions1);
  set ("layoutoptions2"     , layoutoptions2);
  set ("layoutoptions3"     , layoutoptions3);
  set ("symmetry"           , symmetry);
  set ("dungeon_depth"      , dungeon_depth);
  set ("orientation"        , orientation);
  set ("random_seed"        , (UV)random_seed);
  set ("difficulty"         , difficulty && difficulty_given ? difficulty : 0);
  set ("difficulty_increase", difficulty_increase);
  set ("dungeon_level"      , dungeon_level);

  dynbuf_text buf;
  hv_iterinit (hv);

  // does not work for utf-8 keys
  while (HE *he = hv_iternext (hv))
    {
      STRLEN klen; const char *key   = HePV (he, klen);
      STRLEN vlen; const char *value = SvPVutf8 (HeVAL (he), vlen);

      buf.fadd (key, klen);
      buf << ' ';
      buf.fadd (value, vlen);
      buf << '\n';
    }

  return shstr (buf);
}

noinline SV *
random_map_params::get_sv (const char *option) const
{
  SV **he = hv_fetch (hv, option, strlen (option), 0);

  return he ? *he : 0;
}

noinline const_utf8_string
random_map_params::get_str (const char *option, const_utf8_string fallback) const
{
  SV *sv = get_sv (option);
  return sv ? cfSvPVutf8_nolen (sv) : fallback;
}

noinline IV
random_map_params::get_iv (const char *option, IV fallback) const
{
  SV *sv = get_sv (option);
  return sv ? SvIV (sv) : fallback;
}

noinline UV
random_map_params::get_uv (const char *option, UV fallback) const
{
  SV *sv = get_sv (option);
  return sv ? SvUV (sv) : fallback;
}

noinline NV
random_map_params::get_nv (const char *option, NV fallback) const
{
  SV *sv = get_sv (option);
  return sv ? SvNV (sv) : fallback;
}

noinline void
random_map_params::set (const char *option, SV *value) const
{
  int len = strlen (option);

  if (value)
    hv_store  (hv, option, len, value, 0);
  else
    hv_delete (hv, option, len, G_DISCARD);
}

noinline void
random_map_params::set (const char *option, const_utf8_string value) const
{
  set (option, value && *value ? newSVpvn_utf8 (value, strlen (value), 1) : 0);
}

void
random_map_params::set (const char *option, IV value) const
{
  set (option, newSViv (value));
}

void
random_map_params::set (const char *option, UV value) const
{
  set (option, newSVuv (value));
}

void
random_map_params::set (const char *option, NV value) const
{
  set (option, newSVnv (value));
}

void
random_map_params::hv_clone ()
{
  HV *copy = newHV ();

  hv_iterinit (hv);

  // does not work for utf-8 keys
  while (HE *he = hv_iternext (hv))
    {
      STRLEN klen; const char *key = HePV (he, klen);
      hv_store (copy, key, klen, newSVsv (HeVAL (he)), HeHASH (he));
    }

  SvREFCNT_dec (hv);
  hv = copy;
}

bool
maptile::generate_random_map (random_map_params *RP)
{
  RP->Xsize = RP->xsize;
  RP->Ysize = RP->ysize;

  /* pick a random seed, or use the one from the input file */
  RP->random_seed = RP->random_seed
                       ? RP->random_seed + RP->dungeon_level
                       : time (0);

  // we run "single-threaded"
  rmg_rndm.seed (RP->random_seed);

  shstr buf = RP->as_shstr ();

  if (RP->difficulty == 0)
    {
      RP->difficulty = RP->dungeon_level;       /* use this instead of a map difficulty  */

      if (RP->difficulty_increase > 0.001)
        RP->difficulty = (int) ((float) RP->dungeon_level * RP->difficulty_increase);

      if (RP->difficulty < 1)
        RP->difficulty = 1;
    }
  else
    RP->difficulty_given = 1;

  if (RP->Xsize < MIN_RANDOM_MAP_SIZE)
    RP->Xsize = MIN_RANDOM_MAP_SIZE + rmg_rndm (25) + 5;

  if (RP->Ysize < MIN_RANDOM_MAP_SIZE)
    RP->Ysize = MIN_RANDOM_MAP_SIZE + rmg_rndm (25) + 5;

  min_it (RP->Xsize, MAX_RANDOM_MAP_SIZE);
  min_it (RP->Ysize, MAX_RANDOM_MAP_SIZE);

  if (RP->symmetry == SYMMETRY_RANDOM)
    RP->symmetry_used = rmg_rndm (SYMMETRY_XY) + 1;
  else
    RP->symmetry_used = RP->symmetry;

  if (RP->symmetry_used == SYMMETRY_Y || RP->symmetry_used == SYMMETRY_XY)
    RP->Ysize = RP->Ysize / 2 + 1;

  if (RP->symmetry_used == SYMMETRY_X || RP->symmetry_used == SYMMETRY_XY)
    RP->Xsize = RP->Xsize / 2 + 1;

  if (RP->expand2x > 0)
    {
      RP->Xsize /= 2;
      RP->Ysize /= 2;
    }

  const char *layoutstyle = RP->get_str ("layoutstyle", "");

  if (strstr (layoutstyle, "onion"))
    RP->map_layout_style = LAYOUT_ONION;
  else if (strstr (layoutstyle, "maze"))
    RP->map_layout_style = LAYOUT_MAZE;
  else if (strstr (layoutstyle, "spiral"))
    RP->map_layout_style = LAYOUT_SPIRAL;
  else if (strstr (layoutstyle, "rogue"))
    RP->map_layout_style = LAYOUT_ROGUELIKE;
  else if (strstr (layoutstyle, "snake"))
    RP->map_layout_style = LAYOUT_SNAKE;
  else if (strstr (layoutstyle, "squarespiral"))
    RP->map_layout_style = LAYOUT_SQUARE_SPIRAL;
  else if (strstr (layoutstyle, "cave"))
    RP->map_layout_style = LAYOUT_CAVE;
  else
    RP->map_layout_style = rmg_rndm (NROFLAYOUTS - 1) + 1; /* No style found - choose one randomly */

  layout maze (RP->Xsize, RP->Ysize);
  maze.generate (RP);

  /* increment these for the current map */
  ++RP->dungeon_level;

  // need to patch RP becasue following code doesn't use the layout object
  RP->Xsize = maze.w;
  RP->Ysize = maze.h;

  /* allocate the map and set the floor */
  make_map_floor (maze, RP->get_str ("floorstyle", ""), RP);

  /* set region */
  default_region = region::find (RP->get_str ("region", 0));

  CEDE;

  place_specials_in_map (this, maze, RP);

  CEDE;

  const char *wallstyle = RP->get_str ("wallstyle", "");

  /* create walls unless the wallstyle is "none" */
  if (strcmp (wallstyle, "none"))
    {
      make_map_walls (this, maze, wallstyle, RP->get_str ("miningstyle", ""), RP);

      const char *doorstyle = RP->get_str ("doorstyle", "");

      /* place doors unless doorstyle or wallstyle is "none" */
      if (strcmp (doorstyle, "none"))
        put_doors (this, maze, doorstyle, RP);
    }

  CEDE;

  const char *exitstyle = RP->get_str ("exitstyle", "");

  /* create exits unless the exitstyle is "none" */
  if (strcmp (exitstyle, "none"))
    place_exits (this, maze, exitstyle, RP->orientation, RP);

  CEDE;

  const char *monsterstyle = RP->get_str ("monsterstyle", "");

  /* create monsters unless the monsterstyle is "none" */
  if (strcmp (monsterstyle, "none"))
    place_monsters (this, monsterstyle, RP->difficulty, RP);

  CEDE;

  /* treasures needs to have a proper difficulty set for the map. */
  difficulty = estimate_difficulty ();

  CEDE;

  const char *treasurestyle = RP->get_str ("treasurestyle", "");

  /* create treasure unless the treasurestyle is "none" */
  place_treasure (this, maze, treasurestyle, RP->get_iv ("treasureoptions"), RP);

  CEDE;

  const char *decorstyle = RP->get_str ("treasurestyle", "");

  /* create decor unless the decorstyle is "none" */
  if (strcmp (decorstyle, "none"))
    put_decor (this, maze, decorstyle, RP->get_iv ("decoroptions"), RP);

  CEDE;

  /* generate treasures, etc. */
  fix_auto_apply ();

  CEDE;

  unblock_exits (this, maze, RP);

  msg = buf;
  in_memory = MAP_ACTIVE;

  CEDE;

  return 1;
}

Revision:	1.63
Committed:	Sat Jul 3 01:49:18 2010 UTC (16 years, 3 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.62:	+70 -40 lines
Log Message:	isolation remover would try to tunnel along the border, but make_tunnel refused, leading to isolated areas
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.31	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	pippijn	1.20	*
4	root	1.47	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.46	* Copyright (©) 2001 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992 Frank Tore Johansen
7	pippijn	1.20	*
8	root	1.42	* Deliantra is free software: you can redistribute it and/or modify it under
9			* the terms of the Affero GNU General Public License as published by the
10			* Free Software Foundation, either version 3 of the License, or (at your
11			* option) any later version.
12	pippijn	1.20	*
13			* This program is distributed in the hope that it will be useful,
14			* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	root	1.30	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	pippijn	1.20	* GNU General Public License for more details.
17			*
18	root	1.42	* You should have received a copy of the Affero GNU General Public License
19			* and the GNU General Public License along with this program. If not, see
20			* <http://www.gnu.org/licenses/>.
21	root	1.30	*
22	root	1.31	* The authors can be reached via e-mail to <support@deliantra.net>
23	pippijn	1.20	*/
24	elmex	1.1
25			#include <time.h>
26			#include <stdio.h>
27			#include <global.h>
28			#include <random_map.h>
29			#include <rproto.h>
30			#include <sproto.h>
31
32	root	1.39	#define CEDE coroapi::cede_to_tick ()
33	root	1.22
34	root	1.63	random_map_params::random_map_params ()
35			{
36			hv = newHV ();
37			}
38
39			random_map_params::random_map_params (HV *hv)
40			{
41			this->hv = (HV )SvREFCNT_inc_NN ((SV )hv);
42
43			assign (wall_name, get_str ("wall_name"));
44
45			xsize = get_iv ("xsize");
46			ysize = get_iv ("ysize");
47			expand2x = get_iv ("expand2x");
48			layoutoptions1 = get_iv ("layoutoptions1");
49			layoutoptions2 = get_iv ("layoutoptions2");
50			layoutoptions3 = get_iv ("layoutoptions3");
51			symmetry = get_iv ("symmetry");
52			difficulty = get_iv ("difficulty");
53			difficulty_given = get_iv ("difficulty_given");
54			difficulty_increase = get_nv ("difficulty_increase");
55			dungeon_level = get_iv ("dungeon_level");
56			dungeon_depth = get_iv ("dungeon_depth");
57			orientation = get_iv ("orientation");
58			random_seed = get_uv ("random_seed");
59			total_map_hp = get_nv ("total_map_hp"); // actually val64, but I am too lazy
60			map_layout_style = get_iv ("map_layout_style");
61			symmetry_used = get_iv ("symmetry_used");
62			}
63
64			random_map_params::~random_map_params ()
65			{
66			SvREFCNT_dec (hv);
67			}
68
69			shstr_tmp
70			random_map_params::as_shstr () const
71			{
72			set ("xsize" , xsize);
73			set ("ysize" , ysize);
74			set ("layoutoptions1" , layoutoptions1);
75			set ("layoutoptions2" , layoutoptions2);
76			set ("layoutoptions3" , layoutoptions3);
77			set ("symmetry" , symmetry);
78			set ("dungeon_depth" , dungeon_depth);
79			set ("orientation" , orientation);
80			set ("random_seed" , (UV)random_seed);
81			set ("difficulty" , difficulty && difficulty_given ? difficulty : 0);
82			set ("difficulty_increase", difficulty_increase);
83			set ("dungeon_level" , dungeon_level);
84
85			dynbuf_text buf;
86			hv_iterinit (hv);
87
88			// does not work for utf-8 keys
89			while (HE *he = hv_iternext (hv))
90			{
91			STRLEN klen; const char *key = HePV (he, klen);
92			STRLEN vlen; const char *value = SvPVutf8 (HeVAL (he), vlen);
93
94			buf.fadd (key, klen);
95			buf << ' ';
96			buf.fadd (value, vlen);
97			buf << '\n';
98			}
99
100			return shstr (buf);
101			}
102
103	root	1.55	noinline SV *
104			random_map_params::get_sv (const char *option) const
105	root	1.51	{
106			SV **he = hv_fetch (hv, option, strlen (option), 0);
107
108	root	1.55	return he ? *he : 0;
109	root	1.51	}
110
111	root	1.55	noinline const_utf8_string
112			random_map_params::get_str (const char *option, const_utf8_string fallback) const
113			{
114			SV *sv = get_sv (option);
115			return sv ? cfSvPVutf8_nolen (sv) : fallback;
116			}
117
118			noinline IV
119	root	1.51	random_map_params::get_iv (const char *option, IV fallback) const
120			{
121	root	1.55	SV *sv = get_sv (option);
122			return sv ? SvIV (sv) : fallback;
123			}
124
125			noinline UV
126			random_map_params::get_uv (const char *option, UV fallback) const
127			{
128			SV *sv = get_sv (option);
129			return sv ? SvUV (sv) : fallback;
130			}
131
132			noinline NV
133			random_map_params::get_nv (const char *option, NV fallback) const
134			{
135			SV *sv = get_sv (option);
136			return sv ? SvNV (sv) : fallback;
137			}
138
139			noinline void
140			random_map_params::set (const char option, SV value) const
141			{
142			int len = strlen (option);
143
144			if (value)
145			hv_store (hv, option, len, value, 0);
146			else
147			hv_delete (hv, option, len, G_DISCARD);
148			}
149
150			noinline void
151			random_map_params::set (const char *option, const_utf8_string value) const
152			{
153			set (option, value && *value ? newSVpvn_utf8 (value, strlen (value), 1) : 0);
154			}
155
156			void
157			random_map_params::set (const char *option, IV value) const
158			{
159			set (option, newSViv (value));
160			}
161
162			void
163			random_map_params::set (const char *option, UV value) const
164			{
165			set (option, newSVuv (value));
166			}
167
168			void
169			random_map_params::set (const char *option, NV value) const
170			{
171			set (option, newSVnv (value));
172			}
173
174			void
175			random_map_params::hv_clone ()
176			{
177			HV *copy = newHV ();
178
179			hv_iterinit (hv);
180
181			// does not work for utf-8 keys
182			while (HE *he = hv_iternext (hv))
183			{
184			STRLEN klen; const char *key = HePV (he, klen);
185			hv_store (copy, key, klen, newSVsv (HeVAL (he)), HeHASH (he));
186			}
187
188			SvREFCNT_dec (hv);
189			hv = copy;
190			}
191
192	root	1.43	bool
193			maptile::generate_random_map (random_map_params *RP)
194			{
195			RP->Xsize = RP->xsize;
196			RP->Ysize = RP->ysize;
197
198			/* pick a random seed, or use the one from the input file */
199			RP->random_seed = RP->random_seed
200			? RP->random_seed + RP->dungeon_level
201			: time (0);
202
203			// we run "single-threaded"
204			rmg_rndm.seed (RP->random_seed);
205
206	root	1.55	shstr buf = RP->as_shstr ();
207	root	1.43
208			if (RP->difficulty == 0)
209			{
210			RP->difficulty = RP->dungeon_level; /* use this instead of a map difficulty */
211
212			if (RP->difficulty_increase > 0.001)
213			RP->difficulty = (int) ((float) RP->dungeon_level * RP->difficulty_increase);
214
215			if (RP->difficulty < 1)
216			RP->difficulty = 1;
217			}
218			else
219			RP->difficulty_given = 1;
220
221			if (RP->Xsize < MIN_RANDOM_MAP_SIZE)
222			RP->Xsize = MIN_RANDOM_MAP_SIZE + rmg_rndm (25) + 5;
223
224			if (RP->Ysize < MIN_RANDOM_MAP_SIZE)
225			RP->Ysize = MIN_RANDOM_MAP_SIZE + rmg_rndm (25) + 5;
226
227	root	1.58	min_it (RP->Xsize, MAX_RANDOM_MAP_SIZE);
228			min_it (RP->Ysize, MAX_RANDOM_MAP_SIZE);
229
230	root	1.43	if (RP->symmetry == SYMMETRY_RANDOM)
231			RP->symmetry_used = rmg_rndm (SYMMETRY_XY) + 1;
232			else
233			RP->symmetry_used = RP->symmetry;
234
235			if (RP->symmetry_used == SYMMETRY_Y \|\| RP->symmetry_used == SYMMETRY_XY)
236			RP->Ysize = RP->Ysize / 2 + 1;
237
238			if (RP->symmetry_used == SYMMETRY_X \|\| RP->symmetry_used == SYMMETRY_XY)
239			RP->Xsize = RP->Xsize / 2 + 1;
240
241			if (RP->expand2x > 0)
242			{
243			RP->Xsize /= 2;
244			RP->Ysize /= 2;
245			}
246
247	root	1.62	const char *layoutstyle = RP->get_str ("layoutstyle", "");
248
249			if (strstr (layoutstyle, "onion"))
250	root	1.43	RP->map_layout_style = LAYOUT_ONION;
251	root	1.62	else if (strstr (layoutstyle, "maze"))
252	root	1.43	RP->map_layout_style = LAYOUT_MAZE;
253	root	1.62	else if (strstr (layoutstyle, "spiral"))
254	root	1.43	RP->map_layout_style = LAYOUT_SPIRAL;
255	root	1.62	else if (strstr (layoutstyle, "rogue"))
256	root	1.43	RP->map_layout_style = LAYOUT_ROGUELIKE;
257	root	1.62	else if (strstr (layoutstyle, "snake"))
258	root	1.43	RP->map_layout_style = LAYOUT_SNAKE;
259	root	1.62	else if (strstr (layoutstyle, "squarespiral"))
260	root	1.43	RP->map_layout_style = LAYOUT_SQUARE_SPIRAL;
261	root	1.62	else if (strstr (layoutstyle, "cave"))
262	root	1.57	RP->map_layout_style = LAYOUT_CAVE;
263	root	1.43	else
264	root	1.59	RP->map_layout_style = rmg_rndm (NROFLAYOUTS - 1) + 1; /* No style found - choose one randomly */
265	root	1.43
266	root	1.61	layout maze (RP->Xsize, RP->Ysize);
267			maze.generate (RP);
268	root	1.43
269			/* increment these for the current map */
270			++RP->dungeon_level;
271
272	root	1.61	// need to patch RP becasue following code doesn't use the layout object
273			RP->Xsize = maze.w;
274			RP->Ysize = maze.h;
275	root	1.43
276			/* allocate the map and set the floor */
277	root	1.61	make_map_floor (maze, RP->get_str ("floorstyle", ""), RP);
278	root	1.43
279			/* set region */
280	root	1.63	default_region = region::find (RP->get_str ("region", 0));
281	root	1.43
282			CEDE;
283
284	root	1.61	place_specials_in_map (this, maze, RP);
285	root	1.43
286			CEDE;
287
288	root	1.62	const char *wallstyle = RP->get_str ("wallstyle", "");
289	root	1.51
290	root	1.43	/* create walls unless the wallstyle is "none" */
291	root	1.51	if (strcmp (wallstyle, "none"))
292	root	1.43	{
293	root	1.61	make_map_walls (this, maze, wallstyle, RP->get_str ("miningstyle", ""), RP);
294	root	1.43
295	root	1.62	const char *doorstyle = RP->get_str ("doorstyle", "");
296
297	root	1.43	/* place doors unless doorstyle or wallstyle is "none" */
298	root	1.62	if (strcmp (doorstyle, "none"))
299			put_doors (this, maze, doorstyle, RP);
300	root	1.43	}
301
302			CEDE;
303
304	root	1.51	const char *exitstyle = RP->get_str ("exitstyle", "");
305
306	root	1.43	/* create exits unless the exitstyle is "none" */
307	root	1.51	if (strcmp (exitstyle, "none"))
308	root	1.61	place_exits (this, maze, exitstyle, RP->orientation, RP);
309	root	1.43
310			CEDE;
311
312	root	1.62	const char *monsterstyle = RP->get_str ("monsterstyle", "");
313
314	root	1.43	/* create monsters unless the monsterstyle is "none" */
315	root	1.62	if (strcmp (monsterstyle, "none"))
316			place_monsters (this, monsterstyle, RP->difficulty, RP);
317	root	1.43
318			CEDE;
319
320			/* treasures needs to have a proper difficulty set for the map. */
321			difficulty = estimate_difficulty ();
322
323			CEDE;
324
325	root	1.55	const char *treasurestyle = RP->get_str ("treasurestyle", "");
326
327	root	1.43	/* create treasure unless the treasurestyle is "none" */
328	root	1.61	place_treasure (this, maze, treasurestyle, RP->get_iv ("treasureoptions"), RP);
329	root	1.43
330			CEDE;
331
332	root	1.55	const char *decorstyle = RP->get_str ("treasurestyle", "");
333
334	root	1.43	/* create decor unless the decorstyle is "none" */
335	root	1.55	if (strcmp (decorstyle, "none"))
336	root	1.61	put_decor (this, maze, decorstyle, RP->get_iv ("decoroptions"), RP);
337	root	1.43
338			CEDE;
339
340			/* generate treasures, etc. */
341			fix_auto_apply ();
342
343			CEDE;
344
345	root	1.61	unblock_exits (this, maze, RP);
346	root	1.43
347	root	1.51	msg = buf;
348	root	1.43	in_memory = MAP_ACTIVE;
349
350			CEDE;
351
352			return 1;
353			}
354