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 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 (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. */
static 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.  */
static 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 ? 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, 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 = the_wall->arch->instance ();

                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 = 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:	1.33
Committed:	Fri Mar 26 00:59:21 2010 UTC (16 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.32:	+2 -2 lines
Log Message:	remove bogus 2007 copyright that was added wrongly by the script, update to affero license
#	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	1.33	* 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	1.13	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	root	1.31	static int
115	root	1.13	surround_flag4 (maptile map, int i, int j, random_map_params RP)
116	root	1.4	{
117	elmex	1.1	/* 1 = blocked to left,
118	root	1.4	2 = blocked to right,
119			4 = blocked above
120			8 = blocked below */
121	elmex	1.1	int surround_index = 0;
122
123	root	1.4	if ((i > 0) && wall_blocked (map, i - 1, j))
124			surround_index \|= 1;
125			if ((i < RP->Xsize - 1) && wall_blocked (map, i + 1, j))
126			surround_index \|= 2;
127			if ((j > 0) && wall_blocked (map, i, j - 1))
128			surround_index \|= 4;
129			if ((j < RP->Ysize - 1) && wall_blocked (map, i, j + 1))
130			surround_index \|= 8;
131	elmex	1.1
132			return surround_index;
133			}
134
135			/* picks the right wall type for this square, to make it look nice,
136	root	1.2	and have everything nicely joined. It uses the layout. */
137	root	1.31	static object *
138	root	1.13	pick_joined_wall (object the_wall, char layout, int i, int j, random_map_params RP)
139	root	1.4	{
140	elmex	1.1	/* 1 = wall to left,
141	root	1.4	2 = wall to right,
142			4 = wall above
143			8 = wall below */
144			int surround_index = 0;
145	elmex	1.1	int l;
146	root	1.14	char wall_name[1024];
147	root	1.4	archetype *wall_arch = 0;
148	elmex	1.1
149	root	1.22	assign (wall_name, the_wall->arch->archname);
150	elmex	1.1
151			/* conventionally, walls are named like this:
152	root	1.4	wallname_wallcode, where wallcode indicates
153			a joinedness, and wallname is the wall.
154			this code depends on the convention for
155			finding the right wall. */
156	elmex	1.1
157			/* extract the wall name, which is the text up to the leading _ */
158	root	1.4	for (l = 0; l < 64; l++)
159			{
160			if (wall_name[l] == '_')
161			{
162			wall_name[l] = 0;
163			break;
164			}
165			}
166
167			surround_index = surround_flag2 (layout, i, j, RP);
168
169			switch (surround_index)
170			{
171	root	1.13	case 0:
172			strcat (wall_name, "_0");
173			break;
174			case 1:
175			strcat (wall_name, "_1_3");
176			break;
177			case 2:
178			strcat (wall_name, "_1_4");
179			break;
180			case 3:
181			strcat (wall_name, "_2_1_2");
182			break;
183			case 4:
184			strcat (wall_name, "_1_2");
185			break;
186			case 5:
187			strcat (wall_name, "_2_2_4");
188			break;
189			case 6:
190			strcat (wall_name, "_2_2_1");
191			break;
192			case 7:
193			strcat (wall_name, "_3_1");
194			break;
195			case 8:
196			strcat (wall_name, "_1_1");
197			break;
198			case 9:
199			strcat (wall_name, "_2_2_3");
200			break;
201			case 10:
202			strcat (wall_name, "_2_2_2");
203			break;
204			case 11:
205			strcat (wall_name, "_3_3");
206			break;
207			case 12:
208			strcat (wall_name, "_2_1_1");
209			break;
210			case 13:
211			strcat (wall_name, "_3_4");
212			break;
213			case 14:
214			strcat (wall_name, "_3_2");
215			break;
216			case 15:
217			strcat (wall_name, "_4");
218			break;
219	root	1.4	}
220	root	1.5	wall_arch = archetype::find (wall_name);
221	elmex	1.1
222	root	1.32	return wall_arch ? wall_arch->instance () : the_wall->arch->instance ();
223	elmex	1.1	}
224	root	1.4
225	root	1.30	/* takes a map and a layout, and puts walls in the map (picked from
226			w_style) at '#' marks. */
227			void
228			make_map_walls (maptile map, char layout, char w_style, random_map_params *RP)
229			{
230			char styledirname[1024];
231			char stylefilepath[1024];
232			maptile *style_map = 0;
233			object *the_wall;
234
235			/* get the style map */
236			if (!strcmp (w_style, "none"))
237			return;
238			sprintf (styledirname, "%s", "/styles/wallstyles");
239			sprintf (stylefilepath, "%s/%s", styledirname, w_style);
240			style_map = find_style (styledirname, w_style, -1);
241			if (!style_map)
242			return;
243
244			/* fill up the map with the given floor style */
245			if ((the_wall = style_map->pick_random_object (rmg_rndm)))
246			{
247			int i, j;
248			char *cp;
249			int joinedwalls = 0;
250			object *thiswall;
251
252			sprintf (RP->wall_name, "%s", &the_wall->arch->archname);
253			if ((cp = strchr (RP->wall_name, '_')) != NULL)
254			{
255			*cp = 0;
256			joinedwalls = 1;
257			}
258
259			for (i = 0; i < RP->Xsize; i++)
260			for (j = 0; j < RP->Ysize; j++)
261			{
262			if (layout[i][j] == '#')
263			{
264			if (joinedwalls)
265			thiswall = pick_joined_wall (the_wall, layout, i, j, RP);
266			else
267	root	1.32	thiswall = the_wall->arch->instance ();
268	root	1.30
269			thiswall->x = i;
270			thiswall->y = j;
271			thiswall->move_block = MOVE_ALL;
272			insert_ob_in_map (thiswall, map, thiswall, INS_NO_MERGE \| INS_NO_WALK_ON);
273			}
274			}
275			}
276			}
277	elmex	1.1
278			/* this takes a map, and changes an existing wall to match what's blocked
279			* around it, counting only doors and walls as blocked. If insert_flag is
280			* 1, it will go ahead and insert the wall into the map. If not, it
281			* will only return the wall which would belong there, and doesn't
282			* remove anything. It depends on the
283			* global, previously-set variable, "wall_name"
284			*/
285	root	1.4	object *
286	root	1.13	retrofit_joined_wall (maptile the_map, int i, int j, int insert_flag, random_map_params RP)
287	root	1.4	{
288			/* 1 = wall to left,
289			* 2 = wall to right,
290			* 4 = wall above
291			* 8 = wall below
292			*/
293			int surround_index = 0;
294			int l;
295			object *the_wall = 0;
296			object *new_wall = 0;
297			archetype *wall_arch = 0;
298
299			/* first find the wall */
300	root	1.10	for (the_wall = GET_MAP_OB (the_map, i, j); the_wall != NULL; the_wall = the_wall->above)
301	root	1.4	if ((the_wall->move_type & MOVE_WALK) && the_wall->type != EXIT && the_wall->type != TELEPORTER)
302			break;
303
304
305			/* if what we found is a door, don't remove it, set the_wall to NULL to
306			* signal that later.
307			*/
308			if (the_wall && (the_wall->type == DOOR \|\| the_wall->type == LOCKED_DOOR))
309			{
310			the_wall = NULL;
311			/* if we're not supposed to insert a new wall where there wasn't one,
312			* we've gotta leave.
313			*/
314			if (insert_flag == 0)
315			return 0;
316	elmex	1.1	}
317	root	1.4	else if (the_wall == NULL)
318			return NULL;
319	elmex	1.1
320	root	1.4	/* canonicalize the wall name */
321			for (l = 0; l < 64; l++)
322			{
323			if (RP->wall_name[l] == '_')
324			{
325			RP->wall_name[l] = 0;
326			break;
327	root	1.2	}
328	elmex	1.1	}
329
330	root	1.4	surround_index = surround_flag4 (the_map, i, j, RP);
331			/* This would be a lot cleaner to just us a lookup table,
332			* eg, wall_suffix[surround_index]
333			*/
334			switch (surround_index)
335			{
336	root	1.13	case 0:
337			strcat (RP->wall_name, "_0");
338			break;
339			case 1:
340			strcat (RP->wall_name, "_1_3");
341			break;
342			case 2:
343			strcat (RP->wall_name, "_1_4");
344			break;
345			case 3:
346			strcat (RP->wall_name, "_2_1_2");
347			break;
348			case 4:
349			strcat (RP->wall_name, "_1_2");
350			break;
351			case 5:
352			strcat (RP->wall_name, "_2_2_4");
353			break;
354			case 6:
355			strcat (RP->wall_name, "_2_2_1");
356			break;
357			case 7:
358			strcat (RP->wall_name, "_3_1");
359			break;
360			case 8:
361			strcat (RP->wall_name, "_1_1");
362			break;
363			case 9:
364			strcat (RP->wall_name, "_2_2_3");
365			break;
366			case 10:
367			strcat (RP->wall_name, "_2_2_2");
368			break;
369			case 11:
370			strcat (RP->wall_name, "_3_3");
371			break;
372			case 12:
373			strcat (RP->wall_name, "_2_1_1");
374			break;
375			case 13:
376			strcat (RP->wall_name, "_3_4");
377			break;
378			case 14:
379			strcat (RP->wall_name, "_3_2");
380			break;
381			case 15:
382			strcat (RP->wall_name, "_4");
383			break;
384	elmex	1.1	}
385	root	1.11
386	root	1.5	wall_arch = archetype::find (RP->wall_name);
387	root	1.11
388			if (!wall_arch)
389	root	1.4	{
390	root	1.32	new_wall = wall_arch->instance ();
391	root	1.4	new_wall->x = i;
392			new_wall->y = j;
393	root	1.11
394	root	1.4	if (the_wall && the_wall->map)
395	root	1.28	the_wall->destroy ();
396	root	1.11
397	root	1.4	the_wall->move_block = MOVE_ALL;
398			insert_ob_in_map (new_wall, the_map, new_wall, INS_NO_MERGE \| INS_NO_WALK_ON);
399	elmex	1.1	}
400	root	1.11
401	root	1.4	return new_wall;
402	elmex	1.1	}