server/random_maps/special.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>
 */

/*  Specials in this file:
         included maps */

#include <global.h>
#include <rmg.h>
#include <rproto.h>

enum {
  NO_SPECIAL,
  SPECIAL_SUBMAP,
  SPECIAL_FOUNTAIN,
  SPECIAL_EXIT,
  NUM_OF_SPECIAL_TYPES
};

enum {
  GLORY_HOLE = 1,
  ORC_ZONE,
  MINING_ZONE,
  NR_OF_HOLE_TYPES
};

/* clear map completely of all !floor objects:
 * a rectangular area of xsize, ysize
 * is cleared with the top left corner at xstart, ystart
 */
static void
nuke_map_region (maptile *map, layout &maze, int xstart, int ystart, int xsize, int ysize)
{
  for (int i = xstart; i < xstart + xsize; i++)
    for (int j = ystart; j < ystart + ysize; j++)
      {
        maze[i][j] = 'S';

        for (object *tmp = map->at (i, j).bot; tmp; )
          if (tmp->flag [FLAG_IS_FLOOR])
            tmp = tmp->above;
          else
            {
              object *head = tmp->head_ ();
              tmp = tmp->above;
              head->destroy ();
            }
      }
}

/* copy in_map into dest_map at point x,y */
static void
include_map_in_map (maptile *dest_map, maptile *in_map, int x, int y)
{
  for (int i = 0; i < in_map->width; i++)
    for (int j = 0; j < in_map->height; j++)
      for (object *tmp = GET_MAP_OB (in_map, i, j); tmp; tmp = tmp->above)
        {
          /* don't copy tails: must be dealt with specially. */
          if (!tmp->is_head ())
            continue;

          object *new_ob = tmp->deep_clone ();

          if (tmp->flag [FLAG_IS_LINKED])
            new_ob->add_link (dest_map, tmp->find_link ()->id);

          dest_map->insert (new_ob, x + i, y + j, 0, INS_NO_MERGE | INS_NO_WALK_ON);
        }
}

static int
find_spot_for_submap (maptile *map, layout &maze, int *ix, int *iy, int xsize, int ysize)
{
  int blocked, i, j;

  /* don't even try to place a submap into a map if the big map isn't
     sufficiently large. */
  if (2 * xsize > map->width || 2 * ysize > map->height)
    return 0;

  /* search a bit for a completely free spot. */
  for (int tries = 0; tries < 20; tries++)
    {
      blocked = 0;

      /* pick a random location in the maze */
      i = rmg_rndm (1, map->width  - xsize - 2);
      j = rmg_rndm (1, map->height - ysize - 2);

      for (int l = i; l < i + xsize; l++)
        for (int m = j; m < j + ysize; m++)
          {
            blocked = 1;
            break;
          }

      if (!blocked)
        break;
    }

  /* if we failed, relax the restrictions */
  if (blocked)
    {                           /* failure, try a relaxed placer. */
      /* pick a random location in the maze */
      for (int tries = 0; tries < 10; tries++)
        {
          i = rmg_rndm (1, map->width  - xsize - 2);
          j = rmg_rndm (1, map->height - ysize - 2);

          blocked = 0;

          for (int l = i; l < i + xsize; l++)
            for (int m = j; m < j + ysize; m++)
              if (maze[l][m] != '#' && maze[l][m] != 'D' && maze[l][m] != 0)
                {
                  blocked = 1;
                  break;
                }
        }
    }

  if (blocked)
    return 0;

  *ix = i;
  *iy = j;

  return 1;
}

static void
place_fountain_with_specials (maptile *map)
{
  int ix, iy, i = -1, tries = 0;
  maptile *fountain_style = find_style ("/styles/misc", "fountains", -1);

  if (!fountain_style)
    {
      LOG (llevError, "unable to load stylemap /styles/misc fountains\n");
      return;
    }

  object *fountain = archetype::get (shstr_fountain);
  object *potion = fountain_style->pick_random_object (rmg_rndm)->clone ();

  while (i < 0 && tries < 10)
    {
      ix = rmg_rndm (map->width  - 2) + 1;
      iy = rmg_rndm (map->height - 2) + 1;
      i = rmg_find_free_spot (fountain, map, ix, iy, 1, SIZEOFFREE1 + 1);
      tries++;
    }

  if (i == -1)
    {                           /* can't place fountain */
      fountain->destroy ();
      potion->destroy ();
      return;
    }

  ix += freearr_x[i];
  iy += freearr_y[i];
  potion->face = fountain->face;
  potion->set_flag (FLAG_NO_PICK);
  potion->set_flag (FLAG_IDENTIFIED);
  potion->name = potion->name_pl = shstr_fountain;
  potion->x = ix;
  potion->y = iy;
  potion->material = name_to_material (shstr_adamantium);
  fountain->x = ix;
  fountain->y = iy;
  insert_ob_in_map (fountain, map, NULL, 0);
  insert_ob_in_map (potion, map, NULL, 0);
}

static void
place_special_exit (maptile *map, int hole_type, random_map_params *RP)
{
  maptile *exit_style = find_style ("/styles/misc", "obscure_exits", RP->difficulty);
  if (!exit_style)
    {
      LOG (llevError, "unable to load stylemap /styles/misc obscure_exits\n");
      return;
    }

  if (!exit_style)
    return;

  object *the_exit = exit_style->pick_random_object (rmg_rndm)->clone ();

  // put an upper bound here, just in case
  for (int repeat = 8192; --repeat; )
    {
      int ix = rmg_rndm (1, map->width  - 2);
      int iy = rmg_rndm (1, map->height - 2);

      int i = rmg_find_free_spot (the_exit, map, ix, iy, 1, SIZEOFFREE1 + 1);
      if (i >= 0)
        {
          the_exit->x = ix + freearr_x[i];
          the_exit->y = iy + freearr_y[i];
          break;
        }
    }

  if (!hole_type)
    hole_type = rmg_rndm (NR_OF_HOLE_TYPES) + 1;

  const char *style, *decor, *mon;
  int g_xsize, g_ysize;

  switch (hole_type)
    {
      case GLORY_HOLE:         /* treasures */
        {
          g_xsize = rmg_rndm (3) + 4 + RP->difficulty / 4;
          g_ysize = rmg_rndm (3) + 4 + RP->difficulty / 4;
          style = "onion";
          decor = "special_wealth";
          mon = "none";
          break;
        }

      case ORC_ZONE:           /* hole with orcs in it. */
        {
          g_xsize = rmg_rndm (3) + 4 + RP->difficulty / 4;
          g_ysize = rmg_rndm (3) + 4 + RP->difficulty / 4;
          style = "onion";
          decor = "special_wealth";
          mon = "orc";
          break;
        }

      case MINING_ZONE:        /* hole with orcs in it. */
        {
          g_xsize = rmg_rndm (9) + 4 + RP->difficulty / 4;
          g_ysize = rmg_rndm (9) + 4 + RP->difficulty / 4;
          style = "maze";
          decor = "minerals2";
          mon = "none";
          break;
        }

      default:                 /* undefined */
        LOG (llevError, "place_special_exit: undefined hole type %d\n", hole_type);
        return;
    }

  /* Need to be at least this size, otherwise the load
   * code will generate new size values which are too large.
   */
  max_it (g_xsize, MIN_RANDOM_MAP_SIZE);
  max_it (g_ysize, MIN_RANDOM_MAP_SIZE);

  dynbuf_text buf;

  {
    random_map_params &rp = *new random_map_params; // for zero_intiialised to work...

    rp.hv = (HV *)newHV ();

    rp.xsize               = g_xsize;
    rp.ysize               = g_ysize;

    rp.set ("wallstyle"    , RP->get_str ("wallstyle" , 0));
    rp.set ("floorstyle"   , RP->get_str ("floorstyle", 0));
    rp.set ("exitstyle"    , RP->get_str ("exitstyle" , 0));
    rp.set ("region"       , RP->get_str ("region"    , 0));
    rp.set ("monsterstyle" , mon);
    rp.set ("treasurestyle", "none");
    rp.set ("layoutstyle"  , style);
    rp.set ("decorstyle"   , decor);
    rp.set ("decoroptions" , (IV)-1);
    rp.set ("symmetry"     , (IV)SYMMETRY_NONE);
    rp.set ("orientation"  , (IV)1);
    rp.set ("random_seed"  , RP->get_uv ("random_seed") + 0xdeadbeefU);

    rp.layoutoptions1      = RMOPT_WALLS_ONLY;
    rp.dungeon_depth       = RP->dungeon_level;
    rp.dungeon_level       = RP->dungeon_level;
    rp.difficulty          = RP->difficulty;
    rp.difficulty_given    = RP->difficulty;
    rp.difficulty_increase = RP->difficulty_increase;

    the_exit->slaying = shstr_random_map_exit;
    the_exit->msg     = rp.as_shstr ();

    delete &rp;
  }

  insert_ob_in_map (the_exit, map, NULL, 0);
}

void
place_specials_in_map (maptile *map, layout &maze, random_map_params *RP)
{
  switch (rmg_rndm (NUM_OF_SPECIAL_TYPES))
    {
      case SPECIAL_SUBMAP:
        {
          /* includes a special map into the random map being made. */
          maptile *special_map = find_style ("/styles/specialmaps", 0, RP->difficulty, true);

          if (!special_map)
            break;

          int ix, iy; /* map insertion locatons */

          if (find_spot_for_submap (map, maze, &ix, &iy, special_map->width, special_map->height))
            {
              /* First, splatter everything in the dest map at the location */
              nuke_map_region (map, maze, ix, iy, special_map->width, special_map->height);
              include_map_in_map (map, special_map, ix, iy);
            }
        }

        break;

      case SPECIAL_FOUNTAIN:
        /* Make a special fountain:  an unpickable potion disguised as
           a fountain, or rather, colocated with a fountain. */
        place_fountain_with_specials (map);
        break;

      case SPECIAL_EXIT:
        /* Make an exit to another random map, e.g. a gloryhole. */
        place_special_exit (map, 0, RP);
        break;
    }
}

Revision:	1.58
Committed:	Sun Aug 22 20:36:37 2010 UTC (13 years, 9 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.57:	+1 -1 lines
Log Message:	µopt
#	User	Rev	Content
1	elmex	1.1	/*
2	root	1.26	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	pippijn	1.16	*
4	root	1.41	* Copyright (©) 2005,2006,2007,2008,2009,2010 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	root	1.40	* Copyright (©) 2002 Mark Wedel & Crossfire Development Team
6			* Copyright (©) 1992 Frank Tore Johansen
7	pippijn	1.16	*
8	root	1.37	* 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	1.24	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	pippijn	1.16	* GNU General Public License for more details.
17			*
18	root	1.37	* 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	1.24	*
22	root	1.26	* The authors can be reached via e-mail to <support@deliantra.net>
23	pippijn	1.16	*/
24	elmex	1.1
25			/* Specials in this file:
26	root	1.2	included maps */
27	elmex	1.1
28			#include <global.h>
29	root	1.57	#include <rmg.h>
30	elmex	1.1	#include <rproto.h>
31
32	root	1.57	enum {
33			NO_SPECIAL,
34			SPECIAL_SUBMAP,
35			SPECIAL_FOUNTAIN,
36			SPECIAL_EXIT,
37			NUM_OF_SPECIAL_TYPES
38			};
39
40			enum {
41			GLORY_HOLE = 1,
42			ORC_ZONE,
43			MINING_ZONE,
44			NR_OF_HOLE_TYPES
45			};
46	elmex	1.1
47	root	1.32	/* clear map completely of all !floor objects:
48			* a rectangular area of xsize, ysize
49			* is cleared with the top left corner at xstart, ystart
50			*/
51			static void
52	root	1.56	nuke_map_region (maptile *map, layout &maze, int xstart, int ystart, int xsize, int ysize)
53	root	1.4	{
54	root	1.32	for (int i = xstart; i < xstart + xsize; i++)
55			for (int j = ystart; j < ystart + ysize; j++)
56			{
57	root	1.52	maze[i][j] = 'S';
58	root	1.4
59	root	1.32	for (object *tmp = map->at (i, j).bot; tmp; )
60			if (tmp->flag [FLAG_IS_FLOOR])
61			tmp = tmp->above;
62			else
63			{
64			object *head = tmp->head_ ();
65			tmp = tmp->above;
66	root	1.35	head->destroy ();
67	root	1.32	}
68	elmex	1.1	}
69			}
70
71	root	1.4	/* copy in_map into dest_map at point x,y */
72	root	1.32	static void
73	root	1.6	include_map_in_map (maptile dest_map, maptile in_map, int x, int y)
74	root	1.4	{
75	root	1.30	for (int i = 0; i < in_map->width; i++)
76			for (int j = 0; j < in_map->height; j++)
77			for (object *tmp = GET_MAP_OB (in_map, i, j); tmp; tmp = tmp->above)
78			{
79	root	1.32	/* don't copy tails: must be dealt with specially. */
80	root	1.30	if (!tmp->is_head ())
81			continue;
82
83	root	1.31	object *new_ob = tmp->deep_clone ();
84	root	1.30
85	root	1.44	if (tmp->flag [FLAG_IS_LINKED])
86	root	1.36	new_ob->add_link (dest_map, tmp->find_link ()->id);
87	root	1.30
88	root	1.31	dest_map->insert (new_ob, x + i, y + j, 0, INS_NO_MERGE \| INS_NO_WALK_ON);
89	root	1.30	}
90	elmex	1.1	}
91
92	root	1.32	static int
93	root	1.56	find_spot_for_submap (maptile map, layout &maze, int ix, int *iy, int xsize, int ysize)
94	root	1.4	{
95	root	1.32	int blocked, i, j;
96	root	1.4
97	elmex	1.1	/* don't even try to place a submap into a map if the big map isn't
98			sufficiently large. */
99	root	1.10	if (2 * xsize > map->width \|\| 2 * ysize > map->height)
100	root	1.4	return 0;
101
102	elmex	1.1	/* search a bit for a completely free spot. */
103	root	1.32	for (int tries = 0; tries < 20; tries++)
104	root	1.4	{
105	root	1.32	blocked = 0;
106
107	root	1.52	/* pick a random location in the maze */
108	root	1.33	i = rmg_rndm (1, map->width - xsize - 2);
109			j = rmg_rndm (1, map->height - ysize - 2);
110	root	1.32
111			for (int l = i; l < i + xsize; l++)
112			for (int m = j; m < j + ysize; m++)
113			{
114			blocked = 1;
115			break;
116			}
117
118			if (!blocked)
119	root	1.4	break;
120			}
121
122	elmex	1.1	/* if we failed, relax the restrictions */
123	root	1.32	if (blocked)
124	root	1.4	{ /* failure, try a relaxed placer. */
125	root	1.52	/* pick a random location in the maze */
126	root	1.32	for (int tries = 0; tries < 10; tries++)
127	root	1.4	{
128	root	1.33	i = rmg_rndm (1, map->width - xsize - 2);
129			j = rmg_rndm (1, map->height - ysize - 2);
130	root	1.32
131			blocked = 0;
132
133			for (int l = i; l < i + xsize; l++)
134			for (int m = j; m < j + ysize; m++)
135	root	1.52	if (maze[l][m] != '#' && maze[l][m] != 'D' && maze[l][m] != 0)
136	root	1.32	{
137			blocked = 1;
138			break;
139			}
140	root	1.4	}
141	elmex	1.1	}
142	root	1.27
143	root	1.32	if (blocked)
144	root	1.4	return 0;
145	root	1.27
146	root	1.4	*ix = i;
147			*iy = j;
148	root	1.32
149	elmex	1.1	return 1;
150	root	1.4	}
151	elmex	1.1
152	root	1.32	static void
153	root	1.6	place_fountain_with_specials (maptile *map)
154	root	1.4	{
155			int ix, iy, i = -1, tries = 0;
156	root	1.6	maptile *fountain_style = find_style ("/styles/misc", "fountains", -1);
157	root	1.18
158			if (!fountain_style)
159	root	1.19	{
160	pippijn	1.20	LOG (llevError, "unable to load stylemap /styles/misc fountains\n");
161	root	1.19	return;
162			}
163	root	1.18
164	root	1.32	object *fountain = archetype::get (shstr_fountain);
165			object *potion = fountain_style->pick_random_object (rmg_rndm)->clone ();
166	root	1.4
167			while (i < 0 && tries < 10)
168			{
169	root	1.32	ix = rmg_rndm (map->width - 2) + 1;
170			iy = rmg_rndm (map->height - 2) + 1;
171	root	1.45	i = rmg_find_free_spot (fountain, map, ix, iy, 1, SIZEOFFREE1 + 1);
172	root	1.4	tries++;
173	root	1.8	}
174
175	root	1.4	if (i == -1)
176			{ /* can't place fountain */
177	root	1.35	fountain->destroy ();
178			potion->destroy ();
179	root	1.4	return;
180			}
181	root	1.8
182	elmex	1.1	ix += freearr_x[i];
183			iy += freearr_y[i];
184	root	1.4	potion->face = fountain->face;
185	root	1.44	potion->set_flag (FLAG_NO_PICK);
186			potion->set_flag (FLAG_IDENTIFIED);
187	root	1.38	potion->name = potion->name_pl = shstr_fountain;
188	elmex	1.1	potion->x = ix;
189			potion->y = iy;
190	root	1.38	potion->material = name_to_material (shstr_adamantium);
191	elmex	1.1	fountain->x = ix;
192			fountain->y = iy;
193	root	1.4	insert_ob_in_map (fountain, map, NULL, 0);
194			insert_ob_in_map (potion, map, NULL, 0);
195	elmex	1.1	}
196
197	root	1.32	static void
198	root	1.12	place_special_exit (maptile map, int hole_type, random_map_params RP)
199	root	1.4	{
200	root	1.43	maptile *exit_style = find_style ("/styles/misc", "obscure_exits", RP->difficulty);
201	root	1.18	if (!exit_style)
202	root	1.19	{
203	root	1.28	LOG (llevError, "unable to load stylemap /styles/misc obscure_exits\n");
204	root	1.19	return;
205			}
206	root	1.18
207	root	1.4	if (!exit_style)
208			return;
209
210	root	1.32	object *the_exit = exit_style->pick_random_object (rmg_rndm)->clone ();
211	root	1.4
212	root	1.25	// put an upper bound here, just in case
213			for (int repeat = 8192; --repeat; )
214	root	1.4	{
215	root	1.45	int ix = rmg_rndm (1, map->width - 2);
216			int iy = rmg_rndm (1, map->height - 2);
217	root	1.25
218	root	1.45	int i = rmg_find_free_spot (the_exit, map, ix, iy, 1, SIZEOFFREE1 + 1);
219	root	1.25	if (i >= 0)
220			{
221	root	1.45	the_exit->x = ix + freearr_x[i];
222			the_exit->y = iy + freearr_y[i];
223	root	1.25	break;
224			}
225	elmex	1.1	}
226	root	1.4
227			if (!hole_type)
228	root	1.32	hole_type = rmg_rndm (NR_OF_HOLE_TYPES) + 1;
229	root	1.4
230	root	1.45	const char style, decor, *mon;
231			int g_xsize, g_ysize;
232
233	root	1.4	switch (hole_type)
234			{
235	root	1.12	case GLORY_HOLE: /* treasures */
236			{
237	root	1.32	g_xsize = rmg_rndm (3) + 4 + RP->difficulty / 4;
238			g_ysize = rmg_rndm (3) + 4 + RP->difficulty / 4;
239	root	1.12	style = "onion";
240	root	1.48	decor = "special_wealth";
241	root	1.12	mon = "none";
242			break;
243			}
244	root	1.4
245	root	1.12	case ORC_ZONE: /* hole with orcs in it. */
246			{
247	root	1.32	g_xsize = rmg_rndm (3) + 4 + RP->difficulty / 4;
248			g_ysize = rmg_rndm (3) + 4 + RP->difficulty / 4;
249	root	1.12	style = "onion";
250	root	1.48	decor = "special_wealth";
251	root	1.12	mon = "orc";
252			break;
253			}
254	root	1.4
255	root	1.12	case MINING_ZONE: /* hole with orcs in it. */
256			{
257	root	1.32	g_xsize = rmg_rndm (9) + 4 + RP->difficulty / 4;
258			g_ysize = rmg_rndm (9) + 4 + RP->difficulty / 4;
259	root	1.12	style = "maze";
260			decor = "minerals2";
261			mon = "none";
262			break;
263			}
264	root	1.4
265	root	1.12	default: /* undefined */
266			LOG (llevError, "place_special_exit: undefined hole type %d\n", hole_type);
267			return;
268	elmex	1.1	}
269
270	root	1.4	/* Need to be at least this size, otherwise the load
271			* code will generate new size values which are too large.
272			*/
273	root	1.45	max_it (g_xsize, MIN_RANDOM_MAP_SIZE);
274			max_it (g_ysize, MIN_RANDOM_MAP_SIZE);
275
276	root	1.50	dynbuf_text buf;
277
278	root	1.45	{
279			random_map_params &rp = *new random_map_params; // for zero_intiialised to work...
280
281	root	1.53	rp.hv = (HV *)newHV ();
282	root	1.50
283	root	1.45	rp.xsize = g_xsize;
284			rp.ysize = g_ysize;
285
286	root	1.53	rp.set ("wallstyle" , RP->get_str ("wallstyle" , 0));
287			rp.set ("floorstyle" , RP->get_str ("floorstyle", 0));
288			rp.set ("exitstyle" , RP->get_str ("exitstyle" , 0));
289	root	1.54	rp.set ("region" , RP->get_str ("region" , 0));
290	root	1.53	rp.set ("monsterstyle" , mon);
291	root	1.51	rp.set ("treasurestyle", "none");
292	root	1.53	rp.set ("layoutstyle" , style);
293	root	1.51	rp.set ("decorstyle" , decor);
294			rp.set ("decoroptions" , (IV)-1);
295	root	1.55	rp.set ("symmetry" , (IV)SYMMETRY_NONE);
296			rp.set ("orientation" , (IV)1);
297	root	1.58	rp.set ("random_seed" , RP->get_uv ("random_seed") + 0xdeadbeefU);
298	root	1.51
299	root	1.45	rp.layoutoptions1 = RMOPT_WALLS_ONLY;
300			rp.dungeon_depth = RP->dungeon_level;
301			rp.dungeon_level = RP->dungeon_level;
302			rp.difficulty = RP->difficulty;
303			rp.difficulty_given = RP->difficulty;
304			rp.difficulty_increase = RP->difficulty_increase;
305
306	root	1.51	the_exit->slaying = shstr_random_map_exit;
307	root	1.53	the_exit->msg = rp.as_shstr ();
308	root	1.51
309	root	1.45	delete &rp;
310			}
311	root	1.4
312			insert_ob_in_map (the_exit, map, NULL, 0);
313	elmex	1.1	}
314	root	1.4
315			void
316	root	1.56	place_specials_in_map (maptile map, layout &maze, random_map_params RP)
317	root	1.4	{
318	root	1.32	switch (rmg_rndm (NUM_OF_SPECIAL_TYPES))
319	root	1.4	{
320	root	1.19	case SPECIAL_SUBMAP:
321	root	1.32	{
322			/* includes a special map into the random map being made. */
323	root	1.48	maptile *special_map = find_style ("/styles/specialmaps", 0, RP->difficulty, true);
324	root	1.32
325			if (!special_map)
326			break;
327	root	1.4
328	root	1.32	int ix, iy; /* map insertion locatons */
329	root	1.19
330	root	1.52	if (find_spot_for_submap (map, maze, &ix, &iy, special_map->width, special_map->height))
331	root	1.32	{
332			/* First, splatter everything in the dest map at the location */
333	root	1.52	nuke_map_region (map, maze, ix, iy, special_map->width, special_map->height);
334	root	1.32	include_map_in_map (map, special_map, ix, iy);
335			}
336			}
337	root	1.12
338	root	1.19	break;
339	root	1.4
340	root	1.19	case SPECIAL_FOUNTAIN:
341	root	1.12	/* Make a special fountain: an unpickable potion disguised as
342			a fountain, or rather, colocated with a fountain. */
343	root	1.19	place_fountain_with_specials (map);
344			break;
345	root	1.4
346	root	1.19	case SPECIAL_EXIT:
347	root	1.12	/* Make an exit to another random map, e.g. a gloryhole. */
348	root	1.49	place_special_exit (map, 0, RP);
349	root	1.19	break;
350	root	1.4	}
351	root	1.27	}
352	elmex	1.1