server/random_maps/wall.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 (©) 2002 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 <global.h>
#include <random_map.h>
#include <rproto.h>

/*  Put in the walls and autojoin them.  */

/* given a layout and a coordinate, tell me which squares up/down/right/left
        are occupied. */
int
surround_flag (const Layout &layout, int i, int j)
{
  /* 1 = wall to left,
     2 = wall to right,
     4 = wall above
     8 = wall below */
  int surround_index = 0;

  if (i >     0 && layout[i - 1][j] != 0) surround_index |= 1;
  if (i < layout.w - 1 && layout[i + 1][j] != 0) surround_index |= 2;
  if (j >     0 && layout[i][j - 1] != 0) surround_index |= 4;
  if (j < layout.h - 1 && layout[i][j + 1] != 0) surround_index |= 8;

  return surround_index;
}

/* like surround_flag, but only walls count.  */
int
surround_flag2 (const Layout &layout, int i, int j)
{
  /* 1 = wall to left,
     2 = wall to right,
     4 = wall above
     8 = wall below */
  int surround_index = 0;

  if (i >     0 && layout[i - 1][j] == '#') surround_index |= 1;
  if (i < layout.w - 1 && layout[i + 1][j] == '#') surround_index |= 2;
  if (j >     0 && layout[i][j - 1] == '#') surround_index |= 4;
  if (j < layout.h - 1 && layout[i][j + 1] == '#') surround_index |= 8;

  return surround_index;
}

/* like surround_flag, except it checks  a map, not a layout.
 * Since this is part of the random map code, presumption
 * is that this is not a tiled map.
 * What is considered blocking and not is somewhat hard coded.
 */
int
surround_flag3 (maptile *map, int i, int j)
{
  /*
   * 1 = blocked to left,
   * 2 = blocked to right,
   * 4 = blocked above
   * 8 = blocked below 
   */
  int surround_index = 0;

  // don't forget to update the mapspace!
  if (i >               0) map->at (i - 1, j    ).update ();
  if (i < map->width  - 1) map->at (i + 1, j    ).update ();
  if (j >               0) map->at (i    , j - 1).update ();
  if (j < map->height - 1) map->at (i    , j + 1).update ();

  if (i >               0 && (GET_MAP_MOVE_BLOCK (map, i - 1, j) & MOVE_WALK)) surround_index |= 1;
  if (i < map->width  - 1 && (GET_MAP_MOVE_BLOCK (map, i + 1, j) & MOVE_WALK)) surround_index |= 2;
  if (j >               0 && (GET_MAP_MOVE_BLOCK (map, i, j - 1) & MOVE_WALK)) surround_index |= 4;
  if (j < map->height - 1 && (GET_MAP_MOVE_BLOCK (map, i, j + 1) & MOVE_WALK)) surround_index |= 8;

  return surround_index;
}

/* like surround_flag2, except it checks a map, not a layout. */
static int
surround_flag4 (maptile *map, int i, int j)
{
  /* 1 = blocked to left,
     2 = blocked to right,
     4 = blocked above
     8 = blocked below */
  int surround_index = 0;

  if (i >               0 && wall_blocked (map, i - 1, j)) surround_index |= 1;
  if (i < map->width  - 1 && wall_blocked (map, i + 1, j)) surround_index |= 2;
  if (j >               0 && wall_blocked (map, i, j - 1)) surround_index |= 4;
  if (j < map->height - 1 && wall_blocked (map, i, j + 1)) surround_index |= 8;

  return surround_index;
}

/* picks the right wall type for this square, to make it look nice,
        and have everything nicely joined.  It uses the layout.  */
static object *
pick_joined_wall (object *the_wall, const Layout &layout, int i, int j, random_map_params *RP)
{
  /* 1 = wall to left,
     2 = wall to right,
     4 = wall above
     8 = wall below */
  int surround_index = 0;
  int l;
  char wall_name[1024];
  archetype *wall_arch = 0;

  assign (wall_name, the_wall->arch->archname);

  /* conventionally, walls are named like this:
     wallname_wallcode, where wallcode indicates
     a joinedness, and wallname is the wall.
     this code depends on the convention for
     finding the right wall. */

  /* extract the wall name, which is the text up to the leading _ */
  for (l = 0; l < 64; l++)
    {
      if (wall_name[l] == '_')
        {
          wall_name[l] = 0;
          break;
        }
    }

  surround_index = surround_flag2 (layout, i, j);

  switch (surround_index)
    {
      case 0:
        strcat (wall_name, "_0");
        break;
      case 1:
        strcat (wall_name, "_1_3");
        break;
      case 2:
        strcat (wall_name, "_1_4");
        break;
      case 3:
        strcat (wall_name, "_2_1_2");
        break;
      case 4:
        strcat (wall_name, "_1_2");
        break;
      case 5:
        strcat (wall_name, "_2_2_4");
        break;
      case 6:
        strcat (wall_name, "_2_2_1");
        break;
      case 7:
        strcat (wall_name, "_3_1");
        break;
      case 8:
        strcat (wall_name, "_1_1");
        break;
      case 9:
        strcat (wall_name, "_2_2_3");
        break;
      case 10:
        strcat (wall_name, "_2_2_2");
        break;
      case 11:
        strcat (wall_name, "_3_3");
        break;
      case 12:
        strcat (wall_name, "_2_1_1");
        break;
      case 13:
        strcat (wall_name, "_3_4");
        break;
      case 14:
        strcat (wall_name, "_3_2");
        break;
      case 15:
        strcat (wall_name, "_4");
        break;
    }
  wall_arch = archetype::find (wall_name);

  return wall_arch ? wall_arch->instance () : the_wall->arch->instance ();
}

/* takes a map and a layout, and puts walls in the map (picked from
        w_style) at '#' marks. */
void
make_map_walls (maptile *map, Layout &layout, const char *w_style, const char *m_style, random_map_params *RP)
{
  object *the_wall;

  /* get the style map */
  if (!strcmp (w_style, "none"))
    return;

  maptile *style_map = find_style ("/styles/wallstyles", w_style, RP->difficulty);
  if (!style_map)
    return;

  maptile *mining_map = m_style && *m_style
      ? find_style ("/styles/miningstyles", m_style, RP->difficulty)
      : 0;

  if ((the_wall = style_map->pick_random_object (rmg_rndm)))
    {
      int i, j;
      char *cp;
      int joinedwalls = 0;
      object *thiswall;

      sprintf (RP->wall_name, "%s", &the_wall->arch->archname);
      if ((cp = strchr (RP->wall_name, '_')) != NULL)
        {
          *cp = 0;
          joinedwalls = 1;
        }

      for (i = 0; i < RP->Xsize; i++)
        for (j = 0; j < RP->Ysize; j++)
          {
            if (layout[i][j] == '#')
              {
                if (joinedwalls)
                  thiswall = pick_joined_wall (the_wall, layout, i, j, RP);
                else
                  thiswall = the_wall->arch->instance ();

                thiswall->move_block = MOVE_ALL;
                map->insert (thiswall, i, j, thiswall, INS_NO_MERGE | INS_NO_WALK_ON);

                if (mining_map)
                  if (object *vein = mining_map->at (rmg_rndm (mining_map->width), rmg_rndm (mining_map->height)).bot)
                    map->insert (vein->clone (), i, j, thiswall, INS_NO_MERGE | INS_NO_WALK_ON);
              }
          }
    }
}

/* this takes a map, and changes an existing wall to match what's blocked
 * around it, counting only doors and walls as blocked.  If insert_flag is
 * 1, it will go ahead and insert the wall into the map.  If not, it
 * will only return the wall which would belong there, and doesn't
 * remove anything.  It depends on the
 * global, previously-set variable, "wall_name"  
 */
object *
retrofit_joined_wall (maptile *the_map, int i, int j, int insert_flag, random_map_params *RP)
{
  /* 1 = wall to left,
   * 2 = wall to right,
   * 4 = wall above
   * 8 = wall below 
   */
  int surround_index = 0;
  int l;
  object *the_wall = 0;
  object *new_wall = 0;
  archetype *wall_arch = 0;

  /* first find the wall */
  for (the_wall = GET_MAP_OB (the_map, i, j); the_wall != NULL; the_wall = the_wall->above)
    if ((the_wall->move_type & MOVE_WALK) && the_wall->type != EXIT && the_wall->type != TELEPORTER)
      break;


  /* if what we found is a door, don't remove it, set the_wall to NULL to
   * signal that later. 
   */
  if (the_wall && (the_wall->type == DOOR || the_wall->type == LOCKED_DOOR))
    {
      the_wall = NULL;
      /* if we're not supposed to insert a new wall where there wasn't one, 
       * we've gotta leave. 
       */
      if (insert_flag == 0)
        return 0;
    }
  else if (the_wall == NULL)
    return NULL;

  /* canonicalize the wall name */
  for (l = 0; l < 64; l++)
    {
      if (RP->wall_name[l] == '_')
        {
          RP->wall_name[l] = 0;
          break;
        }
    }

  surround_index = surround_flag4 (the_map, i, j);
  /* This would be a lot cleaner to just us a lookup table,
   * eg, wall_suffix[surround_index]
   */
  switch (surround_index)
    {
      case 0:
        strcat (RP->wall_name, "_0");
        break;
      case 1:
        strcat (RP->wall_name, "_1_3");
        break;
      case 2:
        strcat (RP->wall_name, "_1_4");
        break;
      case 3:
        strcat (RP->wall_name, "_2_1_2");
        break;
      case 4:
        strcat (RP->wall_name, "_1_2");
        break;
      case 5:
        strcat (RP->wall_name, "_2_2_4");
        break;
      case 6:
        strcat (RP->wall_name, "_2_2_1");
        break;
      case 7:
        strcat (RP->wall_name, "_3_1");
        break;
      case 8:
        strcat (RP->wall_name, "_1_1");
        break;
      case 9:
        strcat (RP->wall_name, "_2_2_3");
        break;
      case 10:
        strcat (RP->wall_name, "_2_2_2");
        break;
      case 11:
        strcat (RP->wall_name, "_3_3");
        break;
      case 12:
        strcat (RP->wall_name, "_2_1_1");
        break;
      case 13:
        strcat (RP->wall_name, "_3_4");
        break;
      case 14:
        strcat (RP->wall_name, "_3_2");
        break;
      case 15:
        strcat (RP->wall_name, "_4");
        break;
    }

  wall_arch = archetype::find (RP->wall_name);

  if (!wall_arch)
    {
      new_wall = wall_arch->instance ();
      new_wall->x = i;
      new_wall->y = j;

      if (the_wall && the_wall->map)
        the_wall->destroy ();

      the_wall->move_block = MOVE_ALL;
      insert_ob_in_map (new_wall, the_map, new_wall, INS_NO_MERGE | INS_NO_WALK_ON);
    }

  return new_wall;
}
Revision:	1.37
Committed:	Fri Jul 2 03:40:14 2010 UTC (13 years, 10 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.36:	+33 -38 lines
Log Message:	refactoring (untested)
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.24	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	pippijn	1.16	*
4	root	1.34	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.33	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992 Frank Tore Johansen
7	pippijn	1.16	*
8	root	1.29	* 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	1.16	*
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	1.23	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	pippijn	1.16	* GNU General Public License for more details.
17			*
18	root	1.29	* 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	1.23	*
22	root	1.24	* The authors can be reached via e-mail to <support@deliantra.net>
23	pippijn	1.16	*/
24	elmex	1.1
25			#include <global.h>
26			#include <random_map.h>
27			#include <rproto.h>
28
29			/* Put in the walls and autojoin them. */
30
31			/* given a layout and a coordinate, tell me which squares up/down/right/left
32	root	1.2	are occupied. */
33	root	1.4	int
34	root	1.37	surround_flag (const Layout &layout, int i, int j)
35	root	1.4	{
36	elmex	1.1	/* 1 = wall to left,
37	root	1.4	2 = wall to right,
38			4 = wall above
39			8 = wall below */
40	elmex	1.1	int surround_index = 0;
41	root	1.4
42	root	1.37	if (i > 0 && layout[i - 1][j] != 0) surround_index \|= 1;
43			if (i < layout.w - 1 && layout[i + 1][j] != 0) surround_index \|= 2;
44			if (j > 0 && layout[i][j - 1] != 0) surround_index \|= 4;
45			if (j < layout.h - 1 && layout[i][j + 1] != 0) surround_index \|= 8;
46	root	1.36
47	elmex	1.1	return surround_index;
48			}
49
50	root	1.37	/* like surround_flag, but only walls count. */
51	root	1.4	int
52	root	1.37	surround_flag2 (const Layout &layout, int i, int j)
53	root	1.4	{
54	elmex	1.1	/* 1 = wall to left,
55	root	1.4	2 = wall to right,
56			4 = wall above
57			8 = wall below */
58	elmex	1.1	int surround_index = 0;
59	root	1.4
60	root	1.37	if (i > 0 && layout[i - 1][j] == '#') surround_index \|= 1;
61			if (i < layout.w - 1 && layout[i + 1][j] == '#') surround_index \|= 2;
62			if (j > 0 && layout[i][j - 1] == '#') surround_index \|= 4;
63			if (j < layout.h - 1 && layout[i][j + 1] == '#') surround_index \|= 8;
64	root	1.36
65	elmex	1.1	return surround_index;
66			}
67
68			/* like surround_flag, except it checks a map, not a layout.
69			* Since this is part of the random map code, presumption
70			* is that this is not a tiled map.
71			* What is considered blocking and not is somewhat hard coded.
72			*/
73	root	1.4	int
74	root	1.37	surround_flag3 (maptile *map, int i, int j)
75	root	1.4	{
76			/*
77	root	1.37	* 1 = blocked to left,
78	root	1.4	* 2 = blocked to right,
79			* 4 = blocked above
80			* 8 = blocked below
81			*/
82			int surround_index = 0;
83	elmex	1.1
84	elmex	1.20	// don't forget to update the mapspace!
85	root	1.37	if (i > 0) map->at (i - 1, j ).update ();
86			if (i < map->width - 1) map->at (i + 1, j ).update ();
87			if (j > 0) map->at (i , j - 1).update ();
88			if (j < map->height - 1) map->at (i , j + 1).update ();
89
90			if (i > 0 && (GET_MAP_MOVE_BLOCK (map, i - 1, j) & MOVE_WALK)) surround_index \|= 1;
91			if (i < map->width - 1 && (GET_MAP_MOVE_BLOCK (map, i + 1, j) & MOVE_WALK)) surround_index \|= 2;
92			if (j > 0 && (GET_MAP_MOVE_BLOCK (map, i, j - 1) & MOVE_WALK)) surround_index \|= 4;
93			if (j < map->height - 1 && (GET_MAP_MOVE_BLOCK (map, i, j + 1) & MOVE_WALK)) surround_index \|= 8;
94	root	1.4
95			return surround_index;
96	elmex	1.1	}
97
98	root	1.37	/* like surround_flag2, except it checks a map, not a layout. */
99	root	1.31	static int
100	root	1.37	surround_flag4 (maptile *map, int i, int j)
101	root	1.4	{
102	root	1.37	/* 1 = blocked to left,
103	root	1.4	2 = blocked to right,
104			4 = blocked above
105			8 = blocked below */
106	elmex	1.1	int surround_index = 0;
107
108	root	1.37	if (i > 0 && wall_blocked (map, i - 1, j)) surround_index \|= 1;
109			if (i < map->width - 1 && wall_blocked (map, i + 1, j)) surround_index \|= 2;
110			if (j > 0 && wall_blocked (map, i, j - 1)) surround_index \|= 4;
111			if (j < map->height - 1 && wall_blocked (map, i, j + 1)) surround_index \|= 8;
112	elmex	1.1
113			return surround_index;
114			}
115
116			/* picks the right wall type for this square, to make it look nice,
117	root	1.2	and have everything nicely joined. It uses the layout. */
118	root	1.31	static object *
119	root	1.37	pick_joined_wall (object the_wall, const Layout &layout, int i, int j, random_map_params RP)
120	root	1.4	{
121	elmex	1.1	/* 1 = wall to left,
122	root	1.4	2 = wall to right,
123			4 = wall above
124			8 = wall below */
125			int surround_index = 0;
126	elmex	1.1	int l;
127	root	1.14	char wall_name[1024];
128	root	1.4	archetype *wall_arch = 0;
129	elmex	1.1
130	root	1.22	assign (wall_name, the_wall->arch->archname);
131	elmex	1.1
132			/* conventionally, walls are named like this:
133	root	1.4	wallname_wallcode, where wallcode indicates
134			a joinedness, and wallname is the wall.
135			this code depends on the convention for
136			finding the right wall. */
137	elmex	1.1
138			/* extract the wall name, which is the text up to the leading _ */
139	root	1.4	for (l = 0; l < 64; l++)
140			{
141			if (wall_name[l] == '_')
142			{
143			wall_name[l] = 0;
144			break;
145			}
146			}
147
148	root	1.37	surround_index = surround_flag2 (layout, i, j);
149	root	1.4
150			switch (surround_index)
151			{
152	root	1.13	case 0:
153			strcat (wall_name, "_0");
154			break;
155			case 1:
156			strcat (wall_name, "_1_3");
157			break;
158			case 2:
159			strcat (wall_name, "_1_4");
160			break;
161			case 3:
162			strcat (wall_name, "_2_1_2");
163			break;
164			case 4:
165			strcat (wall_name, "_1_2");
166			break;
167			case 5:
168			strcat (wall_name, "_2_2_4");
169			break;
170			case 6:
171			strcat (wall_name, "_2_2_1");
172			break;
173			case 7:
174			strcat (wall_name, "_3_1");
175			break;
176			case 8:
177			strcat (wall_name, "_1_1");
178			break;
179			case 9:
180			strcat (wall_name, "_2_2_3");
181			break;
182			case 10:
183			strcat (wall_name, "_2_2_2");
184			break;
185			case 11:
186			strcat (wall_name, "_3_3");
187			break;
188			case 12:
189			strcat (wall_name, "_2_1_1");
190			break;
191			case 13:
192			strcat (wall_name, "_3_4");
193			break;
194			case 14:
195			strcat (wall_name, "_3_2");
196			break;
197			case 15:
198			strcat (wall_name, "_4");
199			break;
200	root	1.4	}
201	root	1.5	wall_arch = archetype::find (wall_name);
202	elmex	1.1
203	root	1.32	return wall_arch ? wall_arch->instance () : the_wall->arch->instance ();
204	elmex	1.1	}
205	root	1.4
206	root	1.30	/* takes a map and a layout, and puts walls in the map (picked from
207			w_style) at '#' marks. */
208			void
209	root	1.37	make_map_walls (maptile map, Layout &layout, const char w_style, const char m_style, random_map_params RP)
210	root	1.30	{
211			object *the_wall;
212
213			/* get the style map */
214			if (!strcmp (w_style, "none"))
215			return;
216	root	1.35
217	root	1.36	maptile *style_map = find_style ("/styles/wallstyles", w_style, RP->difficulty);
218	root	1.30	if (!style_map)
219			return;
220
221	root	1.35	maptile mining_map = m_style && m_style
222	root	1.36	? find_style ("/styles/miningstyles", m_style, RP->difficulty)
223	root	1.35	: 0;
224
225	root	1.30	if ((the_wall = style_map->pick_random_object (rmg_rndm)))
226			{
227			int i, j;
228			char *cp;
229			int joinedwalls = 0;
230			object *thiswall;
231
232			sprintf (RP->wall_name, "%s", &the_wall->arch->archname);
233			if ((cp = strchr (RP->wall_name, '_')) != NULL)
234			{
235			*cp = 0;
236			joinedwalls = 1;
237			}
238
239			for (i = 0; i < RP->Xsize; i++)
240			for (j = 0; j < RP->Ysize; j++)
241			{
242			if (layout[i][j] == '#')
243			{
244			if (joinedwalls)
245			thiswall = pick_joined_wall (the_wall, layout, i, j, RP);
246			else
247	root	1.32	thiswall = the_wall->arch->instance ();
248	root	1.30
249			thiswall->move_block = MOVE_ALL;
250	root	1.35	map->insert (thiswall, i, j, thiswall, INS_NO_MERGE \| INS_NO_WALK_ON);
251
252			if (mining_map)
253			if (object *vein = mining_map->at (rmg_rndm (mining_map->width), rmg_rndm (mining_map->height)).bot)
254			map->insert (vein->clone (), i, j, thiswall, INS_NO_MERGE \| INS_NO_WALK_ON);
255	root	1.30	}
256			}
257			}
258			}
259	elmex	1.1
260			/* this takes a map, and changes an existing wall to match what's blocked
261			* around it, counting only doors and walls as blocked. If insert_flag is
262			* 1, it will go ahead and insert the wall into the map. If not, it
263			* will only return the wall which would belong there, and doesn't
264			* remove anything. It depends on the
265			* global, previously-set variable, "wall_name"
266			*/
267	root	1.4	object *
268	root	1.13	retrofit_joined_wall (maptile the_map, int i, int j, int insert_flag, random_map_params RP)
269	root	1.4	{
270			/* 1 = wall to left,
271			* 2 = wall to right,
272			* 4 = wall above
273			* 8 = wall below
274			*/
275			int surround_index = 0;
276			int l;
277			object *the_wall = 0;
278			object *new_wall = 0;
279			archetype *wall_arch = 0;
280
281			/* first find the wall */
282	root	1.10	for (the_wall = GET_MAP_OB (the_map, i, j); the_wall != NULL; the_wall = the_wall->above)
283	root	1.4	if ((the_wall->move_type & MOVE_WALK) && the_wall->type != EXIT && the_wall->type != TELEPORTER)
284			break;
285
286
287			/* if what we found is a door, don't remove it, set the_wall to NULL to
288			* signal that later.
289			*/
290			if (the_wall && (the_wall->type == DOOR \|\| the_wall->type == LOCKED_DOOR))
291			{
292			the_wall = NULL;
293			/* if we're not supposed to insert a new wall where there wasn't one,
294			* we've gotta leave.
295			*/
296			if (insert_flag == 0)
297			return 0;
298	elmex	1.1	}
299	root	1.4	else if (the_wall == NULL)
300			return NULL;
301	elmex	1.1
302	root	1.4	/* canonicalize the wall name */
303			for (l = 0; l < 64; l++)
304			{
305			if (RP->wall_name[l] == '_')
306			{
307			RP->wall_name[l] = 0;
308			break;
309	root	1.2	}
310	elmex	1.1	}
311
312	root	1.37	surround_index = surround_flag4 (the_map, i, j);
313	root	1.4	/* This would be a lot cleaner to just us a lookup table,
314			* eg, wall_suffix[surround_index]
315			*/
316			switch (surround_index)
317			{
318	root	1.13	case 0:
319			strcat (RP->wall_name, "_0");
320			break;
321			case 1:
322			strcat (RP->wall_name, "_1_3");
323			break;
324			case 2:
325			strcat (RP->wall_name, "_1_4");
326			break;
327			case 3:
328			strcat (RP->wall_name, "_2_1_2");
329			break;
330			case 4:
331			strcat (RP->wall_name, "_1_2");
332			break;
333			case 5:
334			strcat (RP->wall_name, "_2_2_4");
335			break;
336			case 6:
337			strcat (RP->wall_name, "_2_2_1");
338			break;
339			case 7:
340			strcat (RP->wall_name, "_3_1");
341			break;
342			case 8:
343			strcat (RP->wall_name, "_1_1");
344			break;
345			case 9:
346			strcat (RP->wall_name, "_2_2_3");
347			break;
348			case 10:
349			strcat (RP->wall_name, "_2_2_2");
350			break;
351			case 11:
352			strcat (RP->wall_name, "_3_3");
353			break;
354			case 12:
355			strcat (RP->wall_name, "_2_1_1");
356			break;
357			case 13:
358			strcat (RP->wall_name, "_3_4");
359			break;
360			case 14:
361			strcat (RP->wall_name, "_3_2");
362			break;
363			case 15:
364			strcat (RP->wall_name, "_4");
365			break;
366	elmex	1.1	}
367	root	1.11
368	root	1.5	wall_arch = archetype::find (RP->wall_name);
369	root	1.11
370			if (!wall_arch)
371	root	1.4	{
372	root	1.32	new_wall = wall_arch->instance ();
373	root	1.4	new_wall->x = i;
374			new_wall->y = j;
375	root	1.11
376	root	1.4	if (the_wall && the_wall->map)
377	root	1.28	the_wall->destroy ();
378	root	1.11
379	root	1.4	the_wall->move_block = MOVE_ALL;
380			insert_ob_in_map (new_wall, the_map, new_wall, INS_NO_MERGE \| INS_NO_WALK_ON);
381	elmex	1.1	}
382	root	1.11
383	root	1.4	return new_wall;
384	elmex	1.1	}