server/random_maps/wall.C

/*
 * CrossFire, A Multiplayer game for X-windows
 * 
 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
 * Copyright (C) 2002 Mark Wedel & Crossfire Development Team
 * Copyright (C) 1992 Frank Tore Johansen
 * 
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 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 GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 *
 * The authors can be reached via e-mail at <crossfire@schmorp.de>
 */

#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;
}

/* 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 ()))
    {
      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);
              }
          }
    }
}


/* 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);
}


/* 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->remove ();
          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:	1.22
Committed:	Mon Jun 4 12:19:09 2007 UTC (17 years ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.21:	+2 -2 lines
Log Message:	rename arch->name to arch->archname for preparation of subclassing object
#	User	Rev	Content
1	elmex	1.1	/*
2	pippijn	1.16	* CrossFire, A Multiplayer game for X-windows
3			*
4			* Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
5			* Copyright (C) 2002 Mark Wedel & Crossfire Development Team
6			* Copyright (C) 1992 Frank Tore Johansen
7			*
8			* This program is free software; you can redistribute it and/or modify
9			* it under the terms of the GNU General Public License as published by
10			* the Free Software Foundation; either version 2 of the License, or
11			* (at your option) any later version.
12			*
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			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16			* GNU General Public License for more details.
17			*
18			* You should have received a copy of the GNU General Public License
19			* along with this program; if not, write to the Free Software
20			* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21			*
22			* The authors can be reached via e-mail at <crossfire@schmorp.de>
23			*/
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
32			/* given a layout and a coordinate, tell me which squares up/down/right/left
33	root	1.2	are occupied. */
34	elmex	1.1
35	root	1.4	int
36	root	1.13	surround_flag (char *layout, int i, int j, random_map_params RP)
37	root	1.4	{
38	elmex	1.1	/* 1 = wall to left,
39	root	1.4	2 = wall to right,
40			4 = wall above
41			8 = wall below */
42	elmex	1.1	int surround_index = 0;
43	root	1.4
44			if ((i > 0) && layout[i - 1][j] != 0)
45			surround_index \|= 1;
46			if ((i < RP->Xsize - 1) && layout[i + 1][j] != 0)
47			surround_index \|= 2;
48			if ((j > 0) && layout[i][j - 1] != 0)
49			surround_index \|= 4;
50			if ((j < RP->Ysize - 1) && layout[i][j + 1] != 0)
51			surround_index \|= 8;
52	elmex	1.1	return surround_index;
53			}
54
55
56			/* like surround_flag, but only walls count.
57	root	1.2	*/
58	elmex	1.1
59	root	1.4	int
60	root	1.13	surround_flag2 (char *layout, int i, int j, random_map_params RP)
61	root	1.4	{
62	elmex	1.1	/* 1 = wall to left,
63	root	1.4	2 = wall to right,
64			4 = wall above
65			8 = wall below */
66	elmex	1.1	int surround_index = 0;
67	root	1.4
68			if ((i > 0) && layout[i - 1][j] == '#')
69			surround_index \|= 1;
70			if ((i < RP->Xsize - 1) && layout[i + 1][j] == '#')
71			surround_index \|= 2;
72			if ((j > 0) && layout[i][j - 1] == '#')
73			surround_index \|= 4;
74			if ((j < RP->Ysize - 1) && layout[i][j + 1] == '#')
75			surround_index \|= 8;
76	elmex	1.1	return surround_index;
77			}
78
79
80			/* like surround_flag, except it checks a map, not a layout.
81			* Since this is part of the random map code, presumption
82			* is that this is not a tiled map.
83			* What is considered blocking and not is somewhat hard coded.
84			*/
85	root	1.4	int
86	root	1.13	surround_flag3 (maptile map, sint16 i, sint16 j, random_map_params RP)
87	root	1.4	{
88			/*
89			* 1 = blocked to left,
90			* 2 = blocked to right,
91			* 4 = blocked above
92			* 8 = blocked below
93			*/
94
95			int surround_index = 0;
96	elmex	1.1
97	elmex	1.20	// don't forget to update the mapspace!
98	root	1.21	if (i > 0) map->at (i - 1, j ).update ();
99			if (i < RP->Xsize - 1) map->at (i + 1, j ).update ();
100			if (j > 0) map->at (i , j - 1).update ();
101			if (j < RP->Ysize - 1) map->at (i , j + 1).update ();
102	elmex	1.20
103			if ((i > 0) && (GET_MAP_MOVE_BLOCK (map, i - 1, j) & MOVE_WALK))
104	root	1.4	surround_index \|= 1;
105	elmex	1.20	if ((i < RP->Xsize - 1) && (GET_MAP_MOVE_BLOCK (map, i + 1, j) & MOVE_WALK))
106	root	1.4	surround_index \|= 2;
107	elmex	1.20	if ((j > 0) && (GET_MAP_MOVE_BLOCK (map, i, j - 1) & MOVE_WALK))
108	root	1.4	surround_index \|= 4;
109	elmex	1.20	if ((j < RP->Ysize - 1) && (GET_MAP_MOVE_BLOCK (map, i, j + 1) & MOVE_WALK))
110	root	1.4	surround_index \|= 8;
111
112			return surround_index;
113	elmex	1.1	}
114
115			/* like surround_flag2, except it checks a map, not a layout. */
116
117	root	1.4	int
118	root	1.13	surround_flag4 (maptile map, int i, int j, random_map_params RP)
119	root	1.4	{
120	elmex	1.1	/* 1 = blocked to left,
121	root	1.4	2 = blocked to right,
122			4 = blocked above
123			8 = blocked below */
124	elmex	1.1	int surround_index = 0;
125
126	root	1.4	if ((i > 0) && wall_blocked (map, i - 1, j))
127			surround_index \|= 1;
128			if ((i < RP->Xsize - 1) && wall_blocked (map, i + 1, j))
129			surround_index \|= 2;
130			if ((j > 0) && wall_blocked (map, i, j - 1))
131			surround_index \|= 4;
132			if ((j < RP->Ysize - 1) && wall_blocked (map, i, j + 1))
133			surround_index \|= 8;
134	elmex	1.1
135			return surround_index;
136			}
137
138			/* takes a map and a layout, and puts walls in the map (picked from
139	root	1.2	w_style) at '#' marks. */
140	elmex	1.1
141	root	1.4	void
142	root	1.13	make_map_walls (maptile map, char layout, char w_style, random_map_params *RP)
143	root	1.4	{
144	root	1.14	char styledirname[1024];
145			char stylefilepath[1024];
146	root	1.7	maptile *style_map = 0;
147	root	1.4	object *the_wall;
148
149			/* get the style map */
150			if (!strcmp (w_style, "none"))
151			return;
152			sprintf (styledirname, "%s", "/styles/wallstyles");
153			sprintf (stylefilepath, "%s/%s", styledirname, w_style);
154			style_map = find_style (styledirname, w_style, -1);
155	root	1.17	if (!style_map)
156	root	1.4	return;
157
158			/* fill up the map with the given floor style */
159	root	1.19	if ((the_wall = style_map->pick_random_object ()))
160	root	1.4	{
161			int i, j;
162			char *cp;
163			int joinedwalls = 0;
164			object *thiswall;
165
166	root	1.22	sprintf (RP->wall_name, "%s", &the_wall->arch->archname);
167	root	1.4	if ((cp = strchr (RP->wall_name, '_')) != NULL)
168			{
169			*cp = 0;
170			joinedwalls = 1;
171	root	1.2	}
172
173	root	1.4	for (i = 0; i < RP->Xsize; i++)
174			for (j = 0; j < RP->Ysize; j++)
175			{
176			if (layout[i][j] == '#')
177			{
178			if (joinedwalls)
179			thiswall = pick_joined_wall (the_wall, layout, i, j, RP);
180			else
181			thiswall = arch_to_object (the_wall->arch);
182			thiswall->x = i;
183			thiswall->y = j;
184			thiswall->move_block = MOVE_ALL;
185			insert_ob_in_map (thiswall, map, thiswall, INS_NO_MERGE \| INS_NO_WALK_ON);
186			}
187			}
188	elmex	1.1	}
189			}
190
191
192			/* picks the right wall type for this square, to make it look nice,
193	root	1.2	and have everything nicely joined. It uses the layout. */
194	elmex	1.1
195	root	1.4	object *
196	root	1.13	pick_joined_wall (object the_wall, char layout, int i, int j, random_map_params RP)
197	root	1.4	{
198	elmex	1.1	/* 1 = wall to left,
199	root	1.4	2 = wall to right,
200			4 = wall above
201			8 = wall below */
202			int surround_index = 0;
203	elmex	1.1	int l;
204	root	1.14	char wall_name[1024];
205	root	1.4	archetype *wall_arch = 0;
206	elmex	1.1
207	root	1.22	assign (wall_name, the_wall->arch->archname);
208	elmex	1.1
209			/* conventionally, walls are named like this:
210	root	1.4	wallname_wallcode, where wallcode indicates
211			a joinedness, and wallname is the wall.
212			this code depends on the convention for
213			finding the right wall. */
214	elmex	1.1
215			/* extract the wall name, which is the text up to the leading _ */
216	root	1.4	for (l = 0; l < 64; l++)
217			{
218			if (wall_name[l] == '_')
219			{
220			wall_name[l] = 0;
221			break;
222			}
223			}
224
225			surround_index = surround_flag2 (layout, i, j, RP);
226
227			switch (surround_index)
228			{
229	root	1.13	case 0:
230			strcat (wall_name, "_0");
231			break;
232			case 1:
233			strcat (wall_name, "_1_3");
234			break;
235			case 2:
236			strcat (wall_name, "_1_4");
237			break;
238			case 3:
239			strcat (wall_name, "_2_1_2");
240			break;
241			case 4:
242			strcat (wall_name, "_1_2");
243			break;
244			case 5:
245			strcat (wall_name, "_2_2_4");
246			break;
247			case 6:
248			strcat (wall_name, "_2_2_1");
249			break;
250			case 7:
251			strcat (wall_name, "_3_1");
252			break;
253			case 8:
254			strcat (wall_name, "_1_1");
255			break;
256			case 9:
257			strcat (wall_name, "_2_2_3");
258			break;
259			case 10:
260			strcat (wall_name, "_2_2_2");
261			break;
262			case 11:
263			strcat (wall_name, "_3_3");
264			break;
265			case 12:
266			strcat (wall_name, "_2_1_1");
267			break;
268			case 13:
269			strcat (wall_name, "_3_4");
270			break;
271			case 14:
272			strcat (wall_name, "_3_2");
273			break;
274			case 15:
275			strcat (wall_name, "_4");
276			break;
277	root	1.4	}
278	root	1.5	wall_arch = archetype::find (wall_name);
279	elmex	1.1
280	root	1.13	return wall_arch ? arch_to_object (wall_arch) : arch_to_object (the_wall->arch);
281	elmex	1.1	}
282	root	1.4
283	elmex	1.1
284			/* this takes a map, and changes an existing wall to match what's blocked
285			* around it, counting only doors and walls as blocked. If insert_flag is
286			* 1, it will go ahead and insert the wall into the map. If not, it
287			* will only return the wall which would belong there, and doesn't
288			* remove anything. It depends on the
289			* global, previously-set variable, "wall_name"
290			*/
291
292	root	1.4	object *
293	root	1.13	retrofit_joined_wall (maptile the_map, int i, int j, int insert_flag, random_map_params RP)
294	root	1.4	{
295			/* 1 = wall to left,
296			* 2 = wall to right,
297			* 4 = wall above
298			* 8 = wall below
299			*/
300			int surround_index = 0;
301			int l;
302			object *the_wall = 0;
303			object *new_wall = 0;
304			archetype *wall_arch = 0;
305
306			/* first find the wall */
307	root	1.10	for (the_wall = GET_MAP_OB (the_map, i, j); the_wall != NULL; the_wall = the_wall->above)
308	root	1.4	if ((the_wall->move_type & MOVE_WALK) && the_wall->type != EXIT && the_wall->type != TELEPORTER)
309			break;
310
311
312			/* if what we found is a door, don't remove it, set the_wall to NULL to
313			* signal that later.
314			*/
315			if (the_wall && (the_wall->type == DOOR \|\| the_wall->type == LOCKED_DOOR))
316			{
317			the_wall = NULL;
318			/* if we're not supposed to insert a new wall where there wasn't one,
319			* we've gotta leave.
320			*/
321			if (insert_flag == 0)
322			return 0;
323	elmex	1.1	}
324	root	1.4	else if (the_wall == NULL)
325			return NULL;
326	elmex	1.1
327	root	1.4	/* canonicalize the wall name */
328			for (l = 0; l < 64; l++)
329			{
330			if (RP->wall_name[l] == '_')
331			{
332			RP->wall_name[l] = 0;
333			break;
334	root	1.2	}
335	elmex	1.1	}
336
337	root	1.4	surround_index = surround_flag4 (the_map, i, j, RP);
338			/* This would be a lot cleaner to just us a lookup table,
339			* eg, wall_suffix[surround_index]
340			*/
341			switch (surround_index)
342			{
343	root	1.13	case 0:
344			strcat (RP->wall_name, "_0");
345			break;
346			case 1:
347			strcat (RP->wall_name, "_1_3");
348			break;
349			case 2:
350			strcat (RP->wall_name, "_1_4");
351			break;
352			case 3:
353			strcat (RP->wall_name, "_2_1_2");
354			break;
355			case 4:
356			strcat (RP->wall_name, "_1_2");
357			break;
358			case 5:
359			strcat (RP->wall_name, "_2_2_4");
360			break;
361			case 6:
362			strcat (RP->wall_name, "_2_2_1");
363			break;
364			case 7:
365			strcat (RP->wall_name, "_3_1");
366			break;
367			case 8:
368			strcat (RP->wall_name, "_1_1");
369			break;
370			case 9:
371			strcat (RP->wall_name, "_2_2_3");
372			break;
373			case 10:
374			strcat (RP->wall_name, "_2_2_2");
375			break;
376			case 11:
377			strcat (RP->wall_name, "_3_3");
378			break;
379			case 12:
380			strcat (RP->wall_name, "_2_1_1");
381			break;
382			case 13:
383			strcat (RP->wall_name, "_3_4");
384			break;
385			case 14:
386			strcat (RP->wall_name, "_3_2");
387			break;
388			case 15:
389			strcat (RP->wall_name, "_4");
390			break;
391	elmex	1.1	}
392	root	1.11
393	root	1.5	wall_arch = archetype::find (RP->wall_name);
394	root	1.11
395			if (!wall_arch)
396	root	1.4	{
397			new_wall = arch_to_object (wall_arch);
398			new_wall->x = i;
399			new_wall->y = j;
400	root	1.11
401	root	1.4	if (the_wall && the_wall->map)
402			{
403	root	1.8	the_wall->remove ();
404	root	1.9	the_wall->destroy ();
405	root	1.2	}
406	root	1.11
407	root	1.4	the_wall->move_block = MOVE_ALL;
408			insert_ob_in_map (new_wall, the_map, new_wall, INS_NO_MERGE \| INS_NO_WALK_ON);
409	elmex	1.1	}
410	root	1.11
411	root	1.4	return new_wall;
412	elmex	1.1	}