server/random_maps/wall.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
 * Copyright (©) 1992,2007 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 (char **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;

  if ((i > 0) && layout[i - 1][j] != 0)
    surround_index |= 1;
  if ((i < RP->Xsize - 1) && layout[i + 1][j] != 0)
    surround_index |= 2;
  if ((j > 0) && layout[i][j - 1] != 0)
    surround_index |= 4;
  if ((j < RP->Ysize - 1) && layout[i][j + 1] != 0)
    surround_index |= 8;
  return surround_index;
}


/* like surround_flag, but only walls count.
        */

int
surround_flag2 (char **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;

  if ((i > 0) && layout[i - 1][j] == '#')
    surround_index |= 1;
  if ((i < RP->Xsize - 1) && layout[i + 1][j] == '#')
    surround_index |= 2;
  if ((j > 0) && layout[i][j - 1] == '#')
    surround_index |= 4;
  if ((j < RP->Ysize - 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, sint16 i, sint16 j, random_map_params *RP)
{
  /*
   * 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 < RP->Xsize - 1) map->at (i + 1, j    ).update ();
  if (j >             0) map->at (i    , j - 1).update ();
  if (j < RP->Ysize - 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 < RP->Xsize - 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 < RP->Ysize - 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. */

int
surround_flag4 (maptile *map, int i, int j, random_map_params *RP)
{
  /* 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 < RP->Xsize - 1) && wall_blocked (map, i + 1, j))
    surround_index |= 2;
  if ((j > 0) && wall_blocked (map, i, j - 1))
    surround_index |= 4;
  if ((j < RP->Ysize - 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.  */
object *
pick_joined_wall (object *the_wall, char **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, RP);

  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 ? arch_to_object (wall_arch) : arch_to_object (the_wall->arch);
}

/* takes a map and a layout, and puts walls in the map (picked from
        w_style) at '#' marks. */
void
make_map_walls (maptile *map, char **layout, char *w_style, random_map_params *RP)
{
  char styledirname[1024];
  char stylefilepath[1024];
  maptile *style_map = 0;
  object *the_wall;

  /* get the style map */
  if (!strcmp (w_style, "none"))
    return;
  sprintf (styledirname, "%s", "/styles/wallstyles");
  sprintf (stylefilepath, "%s/%s", styledirname, w_style);
  style_map = find_style (styledirname, w_style, -1);
  if (!style_map)
    return;

  /* fill up the map with the given floor style */
  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 = arch_to_object (the_wall->arch);

                thiswall->x = i;
                thiswall->y = j;
                thiswall->move_block = MOVE_ALL;
                insert_ob_in_map (thiswall, map, 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, RP);
  /* 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 = arch_to_object (wall_arch);
      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:	1.30
Committed:	Fri Nov 6 12:49:19 2009 UTC (16 years, 11 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.29:	+52 -56 lines
Log Message:	make effectively static symbols actually static, part 1
#	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	1.25	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.23	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992,2007 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	1.13	surround_flag (char *layout, int i, int j, random_map_params RP)
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			if ((i > 0) && layout[i - 1][j] != 0)
43			surround_index \|= 1;
44			if ((i < RP->Xsize - 1) && layout[i + 1][j] != 0)
45			surround_index \|= 2;
46			if ((j > 0) && layout[i][j - 1] != 0)
47			surround_index \|= 4;
48			if ((j < RP->Ysize - 1) && layout[i][j + 1] != 0)
49			surround_index \|= 8;
50	elmex	1.1	return surround_index;
51			}
52
53
54			/* like surround_flag, but only walls count.
55	root	1.2	*/
56	elmex	1.1
57	root	1.4	int
58	root	1.13	surround_flag2 (char *layout, int i, int j, random_map_params RP)
59	root	1.4	{
60	elmex	1.1	/* 1 = wall to left,
61	root	1.4	2 = wall to right,
62			4 = wall above
63			8 = wall below */
64	elmex	1.1	int surround_index = 0;
65	root	1.4
66			if ((i > 0) && layout[i - 1][j] == '#')
67			surround_index \|= 1;
68			if ((i < RP->Xsize - 1) && layout[i + 1][j] == '#')
69			surround_index \|= 2;
70			if ((j > 0) && layout[i][j - 1] == '#')
71			surround_index \|= 4;
72			if ((j < RP->Ysize - 1) && layout[i][j + 1] == '#')
73			surround_index \|= 8;
74	elmex	1.1	return surround_index;
75			}
76
77
78			/* like surround_flag, except it checks a map, not a layout.
79			* Since this is part of the random map code, presumption
80			* is that this is not a tiled map.
81			* What is considered blocking and not is somewhat hard coded.
82			*/
83	root	1.4	int
84	root	1.13	surround_flag3 (maptile map, sint16 i, sint16 j, random_map_params RP)
85	root	1.4	{
86			/*
87			* 1 = blocked to left,
88			* 2 = blocked to right,
89			* 4 = blocked above
90			* 8 = blocked below
91			*/
92
93			int surround_index = 0;
94	elmex	1.1
95	elmex	1.20	// don't forget to update the mapspace!
96	root	1.21	if (i > 0) map->at (i - 1, j ).update ();
97			if (i < RP->Xsize - 1) map->at (i + 1, j ).update ();
98			if (j > 0) map->at (i , j - 1).update ();
99			if (j < RP->Ysize - 1) map->at (i , j + 1).update ();
100	elmex	1.20
101			if ((i > 0) && (GET_MAP_MOVE_BLOCK (map, i - 1, j) & MOVE_WALK))
102	root	1.4	surround_index \|= 1;
103	elmex	1.20	if ((i < RP->Xsize - 1) && (GET_MAP_MOVE_BLOCK (map, i + 1, j) & MOVE_WALK))
104	root	1.4	surround_index \|= 2;
105	elmex	1.20	if ((j > 0) && (GET_MAP_MOVE_BLOCK (map, i, j - 1) & MOVE_WALK))
106	root	1.4	surround_index \|= 4;
107	elmex	1.20	if ((j < RP->Ysize - 1) && (GET_MAP_MOVE_BLOCK (map, i, j + 1) & MOVE_WALK))
108	root	1.4	surround_index \|= 8;
109
110			return surround_index;
111	elmex	1.1	}
112
113			/* like surround_flag2, except it checks a map, not a layout. */
114
115	root	1.4	int
116	root	1.13	surround_flag4 (maptile map, int i, int j, random_map_params RP)
117	root	1.4	{
118	elmex	1.1	/* 1 = blocked to left,
119	root	1.4	2 = blocked to right,
120			4 = blocked above
121			8 = blocked below */
122	elmex	1.1	int surround_index = 0;
123
124	root	1.4	if ((i > 0) && wall_blocked (map, i - 1, j))
125			surround_index \|= 1;
126			if ((i < RP->Xsize - 1) && wall_blocked (map, i + 1, j))
127			surround_index \|= 2;
128			if ((j > 0) && wall_blocked (map, i, j - 1))
129			surround_index \|= 4;
130			if ((j < RP->Ysize - 1) && wall_blocked (map, i, j + 1))
131			surround_index \|= 8;
132	elmex	1.1
133			return surround_index;
134			}
135
136			/* picks the right wall type for this square, to make it look nice,
137	root	1.2	and have everything nicely joined. It uses the layout. */
138	root	1.4	object *
139	root	1.13	pick_joined_wall (object the_wall, char layout, int i, int j, random_map_params RP)
140	root	1.4	{
141	elmex	1.1	/* 1 = wall to left,
142	root	1.4	2 = wall to right,
143			4 = wall above
144			8 = wall below */
145			int surround_index = 0;
146	elmex	1.1	int l;
147	root	1.14	char wall_name[1024];
148	root	1.4	archetype *wall_arch = 0;
149	elmex	1.1
150	root	1.22	assign (wall_name, the_wall->arch->archname);
151	elmex	1.1
152			/* conventionally, walls are named like this:
153	root	1.4	wallname_wallcode, where wallcode indicates
154			a joinedness, and wallname is the wall.
155			this code depends on the convention for
156			finding the right wall. */
157	elmex	1.1
158			/* extract the wall name, which is the text up to the leading _ */
159	root	1.4	for (l = 0; l < 64; l++)
160			{
161			if (wall_name[l] == '_')
162			{
163			wall_name[l] = 0;
164			break;
165			}
166			}
167
168			surround_index = surround_flag2 (layout, i, j, RP);
169
170			switch (surround_index)
171			{
172	root	1.13	case 0:
173			strcat (wall_name, "_0");
174			break;
175			case 1:
176			strcat (wall_name, "_1_3");
177			break;
178			case 2:
179			strcat (wall_name, "_1_4");
180			break;
181			case 3:
182			strcat (wall_name, "_2_1_2");
183			break;
184			case 4:
185			strcat (wall_name, "_1_2");
186			break;
187			case 5:
188			strcat (wall_name, "_2_2_4");
189			break;
190			case 6:
191			strcat (wall_name, "_2_2_1");
192			break;
193			case 7:
194			strcat (wall_name, "_3_1");
195			break;
196			case 8:
197			strcat (wall_name, "_1_1");
198			break;
199			case 9:
200			strcat (wall_name, "_2_2_3");
201			break;
202			case 10:
203			strcat (wall_name, "_2_2_2");
204			break;
205			case 11:
206			strcat (wall_name, "_3_3");
207			break;
208			case 12:
209			strcat (wall_name, "_2_1_1");
210			break;
211			case 13:
212			strcat (wall_name, "_3_4");
213			break;
214			case 14:
215			strcat (wall_name, "_3_2");
216			break;
217			case 15:
218			strcat (wall_name, "_4");
219			break;
220	root	1.4	}
221	root	1.5	wall_arch = archetype::find (wall_name);
222	elmex	1.1
223	root	1.13	return wall_arch ? arch_to_object (wall_arch) : arch_to_object (the_wall->arch);
224	elmex	1.1	}
225	root	1.4
226	root	1.30	/* takes a map and a layout, and puts walls in the map (picked from
227			w_style) at '#' marks. */
228			void
229			make_map_walls (maptile map, char layout, char w_style, random_map_params *RP)
230			{
231			char styledirname[1024];
232			char stylefilepath[1024];
233			maptile *style_map = 0;
234			object *the_wall;
235
236			/* get the style map */
237			if (!strcmp (w_style, "none"))
238			return;
239			sprintf (styledirname, "%s", "/styles/wallstyles");
240			sprintf (stylefilepath, "%s/%s", styledirname, w_style);
241			style_map = find_style (styledirname, w_style, -1);
242			if (!style_map)
243			return;
244
245			/* fill up the map with the given floor style */
246			if ((the_wall = style_map->pick_random_object (rmg_rndm)))
247			{
248			int i, j;
249			char *cp;
250			int joinedwalls = 0;
251			object *thiswall;
252
253			sprintf (RP->wall_name, "%s", &the_wall->arch->archname);
254			if ((cp = strchr (RP->wall_name, '_')) != NULL)
255			{
256			*cp = 0;
257			joinedwalls = 1;
258			}
259
260			for (i = 0; i < RP->Xsize; i++)
261			for (j = 0; j < RP->Ysize; j++)
262			{
263			if (layout[i][j] == '#')
264			{
265			if (joinedwalls)
266			thiswall = pick_joined_wall (the_wall, layout, i, j, RP);
267			else
268			thiswall = arch_to_object (the_wall->arch);
269
270			thiswall->x = i;
271			thiswall->y = j;
272			thiswall->move_block = MOVE_ALL;
273			insert_ob_in_map (thiswall, map, thiswall, INS_NO_MERGE \| INS_NO_WALK_ON);
274			}
275			}
276			}
277			}
278	elmex	1.1
279			/* this takes a map, and changes an existing wall to match what's blocked
280			* around it, counting only doors and walls as blocked. If insert_flag is
281			* 1, it will go ahead and insert the wall into the map. If not, it
282			* will only return the wall which would belong there, and doesn't
283			* remove anything. It depends on the
284			* global, previously-set variable, "wall_name"
285			*/
286	root	1.4	object *
287	root	1.13	retrofit_joined_wall (maptile the_map, int i, int j, int insert_flag, random_map_params RP)
288	root	1.4	{
289			/* 1 = wall to left,
290			* 2 = wall to right,
291			* 4 = wall above
292			* 8 = wall below
293			*/
294			int surround_index = 0;
295			int l;
296			object *the_wall = 0;
297			object *new_wall = 0;
298			archetype *wall_arch = 0;
299
300			/* first find the wall */
301	root	1.10	for (the_wall = GET_MAP_OB (the_map, i, j); the_wall != NULL; the_wall = the_wall->above)
302	root	1.4	if ((the_wall->move_type & MOVE_WALK) && the_wall->type != EXIT && the_wall->type != TELEPORTER)
303			break;
304
305
306			/* if what we found is a door, don't remove it, set the_wall to NULL to
307			* signal that later.
308			*/
309			if (the_wall && (the_wall->type == DOOR \|\| the_wall->type == LOCKED_DOOR))
310			{
311			the_wall = NULL;
312			/* if we're not supposed to insert a new wall where there wasn't one,
313			* we've gotta leave.
314			*/
315			if (insert_flag == 0)
316			return 0;
317	elmex	1.1	}
318	root	1.4	else if (the_wall == NULL)
319			return NULL;
320	elmex	1.1
321	root	1.4	/* canonicalize the wall name */
322			for (l = 0; l < 64; l++)
323			{
324			if (RP->wall_name[l] == '_')
325			{
326			RP->wall_name[l] = 0;
327			break;
328	root	1.2	}
329	elmex	1.1	}
330
331	root	1.4	surround_index = surround_flag4 (the_map, i, j, RP);
332			/* This would be a lot cleaner to just us a lookup table,
333			* eg, wall_suffix[surround_index]
334			*/
335			switch (surround_index)
336			{
337	root	1.13	case 0:
338			strcat (RP->wall_name, "_0");
339			break;
340			case 1:
341			strcat (RP->wall_name, "_1_3");
342			break;
343			case 2:
344			strcat (RP->wall_name, "_1_4");
345			break;
346			case 3:
347			strcat (RP->wall_name, "_2_1_2");
348			break;
349			case 4:
350			strcat (RP->wall_name, "_1_2");
351			break;
352			case 5:
353			strcat (RP->wall_name, "_2_2_4");
354			break;
355			case 6:
356			strcat (RP->wall_name, "_2_2_1");
357			break;
358			case 7:
359			strcat (RP->wall_name, "_3_1");
360			break;
361			case 8:
362			strcat (RP->wall_name, "_1_1");
363			break;
364			case 9:
365			strcat (RP->wall_name, "_2_2_3");
366			break;
367			case 10:
368			strcat (RP->wall_name, "_2_2_2");
369			break;
370			case 11:
371			strcat (RP->wall_name, "_3_3");
372			break;
373			case 12:
374			strcat (RP->wall_name, "_2_1_1");
375			break;
376			case 13:
377			strcat (RP->wall_name, "_3_4");
378			break;
379			case 14:
380			strcat (RP->wall_name, "_3_2");
381			break;
382			case 15:
383			strcat (RP->wall_name, "_4");
384			break;
385	elmex	1.1	}
386	root	1.11
387	root	1.5	wall_arch = archetype::find (RP->wall_name);
388	root	1.11
389			if (!wall_arch)
390	root	1.4	{
391			new_wall = arch_to_object (wall_arch);
392			new_wall->x = i;
393			new_wall->y = j;
394	root	1.11
395	root	1.4	if (the_wall && the_wall->map)
396	root	1.28	the_wall->destroy ();
397	root	1.11
398	root	1.4	the_wall->move_block = MOVE_ALL;
399			insert_ob_in_map (new_wall, the_map, new_wall, INS_NO_MERGE \| INS_NO_WALK_ON);
400	elmex	1.1	}
401	root	1.11
402	root	1.4	return new_wall;
403	elmex	1.1	}