server/random_maps/special.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>
 */

/*  Specials in this file:
         included maps */

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

#define NUM_OF_SPECIAL_TYPES 4
#define NO_SPECIAL 0
#define SPECIAL_SUBMAP 1
#define SPECIAL_FOUNTAIN 2
#define SPECIAL_EXIT 3

#define GLORY_HOLE 1
#define ORC_ZONE 2
#define MINING_ZONE 3
#define NR_OF_HOLE_TYPES 3

/* clear map completely of all objects:  a rectangular area of xsize, ysize
is cleared with the top left corner at xstart, ystart */

void
nuke_map_region (maptile *map, int xstart, int ystart, int xsize, int ysize)
{
  int i, j;
  object *tmp;

  for (i = xstart; i < xstart + xsize; i++)
    for (j = ystart; j < ystart + ysize; j++)
      {
        for (tmp = GET_MAP_OB (map, i, j); tmp != NULL; tmp = tmp->above)
          {
            if (!QUERY_FLAG (tmp, FLAG_IS_FLOOR))
              {
                if (tmp->head)
                  tmp = tmp->head;
                tmp->remove ();
                tmp->destroy ();
                tmp = GET_MAP_OB (map, i, j);
              }
            if (tmp == NULL)
              break;
          }
      }
}


/* copy in_map into dest_map at point x,y */


void
include_map_in_map (maptile *dest_map, maptile *in_map, int x, int y)
{
  int i, j;
  object *tmp;
  object *new_ob;

  /* First, splatter everything in the dest map at the location */
  nuke_map_region (dest_map, x, y, in_map->width, in_map->height);

  for (i = 0; i < in_map->width; i++)
    for (j = 0; j < in_map->height; j++)
      {
        for (tmp = GET_MAP_OB (in_map, i, j); tmp != NULL; tmp = tmp->above)
          {
            /* don't copy things with multiple squares:  must be dealt with
               specially. */
            if (tmp->head != NULL)
              continue;
            new_ob = arch_to_object (tmp->arch);
            copy_object_with_inv (tmp, new_ob);
            if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
              add_button_link (new_ob, dest_map, tmp->path_attuned);
            new_ob->x = i + x;
            new_ob->y = j + y;
            insert_multisquare_ob_in_map (new_ob, dest_map);
          }
      }
}

int
find_spot_for_submap (maptile *map, char **layout, int *ix, int *iy, int xsize, int ysize)
{
  int tries;
  int i = 0, j = 0;             /* initialization may not be needed but prevents compiler warnings */
  int is_occupied = 0;
  int l, m;

  /* 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 (tries = 0; tries < 20; tries++)
    {
      /* pick a random location in the layout */
      i = RANDOM () % (map->width - xsize - 2) + 1;
      j = RANDOM () % (map->height - ysize - 2) + 1;
      is_occupied = 0;
      for (l = i; l < i + xsize; l++)
        for (m = j; m < j + ysize; m++)
          is_occupied |= layout[l][m];
      if (!is_occupied)
        break;
    }


  /* if we failed, relax the restrictions */

  if (is_occupied)
    {                           /* failure, try a relaxed placer. */
      /* pick a random location in the layout */
      for (tries = 0; tries < 10; tries++)
        {
          i = RANDOM () % (map->width - xsize - 2) + 1;
          j = RANDOM () % (map->height - ysize - 2) + 1;
          is_occupied = 0;
          for (l = i; l < i + xsize; l++)
            for (m = j; m < j + ysize; m++)
              if (layout[l][m] == 'C' || layout[l][m] == '>' || layout[l][m] == '<')
                is_occupied |= 1;
        }
    }
  if (is_occupied)
    return 0;
  *ix = i;
  *iy = j;
  return 1;
}


void
place_fountain_with_specials (maptile *map)
{
  int ix, iy, i = -1, tries = 0;
  maptile *fountain_style = find_style ("/styles/misc", "fountains", -1);
  object *fountain = get_archetype ("fountain");
  object *potion = object::create ();

  pick_random_object (fountain_style)->copy_to (potion);

  while (i < 0 && tries < 10)
    {
      ix = RANDOM () % (map->width - 2) + 1;
      iy = RANDOM () % (map->height - 2) + 1;
      i = 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;
  SET_FLAG (potion, FLAG_NO_PICK);
  SET_FLAG (potion, FLAG_IDENTIFIED);
  potion->name = potion->name_pl = "fountain";
  potion->x = ix;
  potion->y = iy;
  potion->material = M_ADAMANT;
  fountain->x = ix;
  fountain->y = iy;
  insert_ob_in_map (fountain, map, NULL, 0);
  insert_ob_in_map (potion, map, NULL, 0);
}

void
place_special_exit (maptile *map, int hole_type, random_map_params *RP)
{
  int ix, iy, i = -1;
  char buf[16384], *style, *decor, *mon;
  maptile *exit_style = find_style ("/styles/misc", "obscure_exits", -1);
  int g_xsize, g_ysize;

  object *the_exit = object::create ();

  if (!exit_style)
    return;

  pick_random_object (exit_style)->copy_to (the_exit);

  while (i < 0)
    {
      ix = RANDOM () % (map->width - 2) + 1;
      iy = RANDOM () % (map->height - 2) + 1;
      i = find_free_spot (the_exit, map, ix, iy, 1, SIZEOFFREE1 + 1);
    }

  ix += freearr_x[i];
  iy += freearr_y[i];
  the_exit->x = ix;
  the_exit->y = iy;

  if (!hole_type)
    hole_type = RANDOM () % NR_OF_HOLE_TYPES + 1;

  switch (hole_type)
    {
      case GLORY_HOLE:         /* treasures */
        {
          g_xsize = RANDOM () % 3 + 4 + RP->difficulty / 4;
          g_ysize = RANDOM () % 3 + 4 + RP->difficulty / 4;
          style = "onion";
          decor = "wealth2";
          mon = "none";
          break;
        }

      case ORC_ZONE:           /* hole with orcs in it. */
        {
          g_xsize = RANDOM () % 3 + 4 + RP->difficulty / 4;
          g_ysize = RANDOM () % 3 + 4 + RP->difficulty / 4;
          style = "onion";
          decor = "wealth2";
          mon = "orc";
          break;
        }

      case MINING_ZONE:        /* hole with orcs in it. */
        {
          g_xsize = RANDOM () % 9 + 4 + RP->difficulty / 4;
          g_ysize = RANDOM () % 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;
        break;
    }

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

  write_parameters_to_string (buf, g_xsize, g_ysize, RP->wallstyle, RP->floorstyle, mon,
                              "none", style, decor, "none", RP->exitstyle, 0, 0, 0,
                              RMOPT_WALLS_ONLY, 0, 0, 1, RP->dungeon_level, RP->dungeon_level,
                              RP->difficulty, RP->difficulty, -1, 1, 0, 0, 0, 0, RP->difficulty_increase);
  the_exit->slaying = "/!";
  the_exit->msg = buf;

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


void
place_specials_in_map (maptile *map, char **layout, random_map_params *RP)
{
  maptile *special_map;
  int ix, iy;                   /* map insertion locatons */
  int special_type;             /* type of special to make */


  special_type = RANDOM () % NUM_OF_SPECIAL_TYPES;
  switch (special_type)
    {

        /* includes a special map into the random map being made. */
      case SPECIAL_SUBMAP:
        {
          special_map = find_style ("/styles/specialmaps", 0, RP->difficulty);
          if (special_map == NULL)
            return;

          if (find_spot_for_submap (map, layout, &ix, &iy, special_map->width, special_map->height))
            include_map_in_map (map, special_map, ix, iy);
          break;
        }

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

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

}
Revision:	1.16
Committed:	Mon Jan 15 21:06:19 2007 UTC (17 years, 4 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
Changes since 1.15:	+22 -23 lines
Log Message:	comments
#	Content
1	/*
2	* 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
25	/* Specials in this file:
26	included maps */
27
28	#include <global.h>
29	#include <random_map.h>
30	#include <rproto.h>
31
32	#define NUM_OF_SPECIAL_TYPES 4
33	#define NO_SPECIAL 0
34	#define SPECIAL_SUBMAP 1
35	#define SPECIAL_FOUNTAIN 2
36	#define SPECIAL_EXIT 3
37
38	#define GLORY_HOLE 1
39	#define ORC_ZONE 2
40	#define MINING_ZONE 3
41	#define NR_OF_HOLE_TYPES 3
42
43	/* clear map completely of all objects: a rectangular area of xsize, ysize
44	is cleared with the top left corner at xstart, ystart */
45
46	void
47	nuke_map_region (maptile *map, int xstart, int ystart, int xsize, int ysize)
48	{
49	int i, j;
50	object *tmp;
51
52	for (i = xstart; i < xstart + xsize; i++)
53	for (j = ystart; j < ystart + ysize; j++)
54	{
55	for (tmp = GET_MAP_OB (map, i, j); tmp != NULL; tmp = tmp->above)
56	{
57	if (!QUERY_FLAG (tmp, FLAG_IS_FLOOR))
58	{
59	if (tmp->head)
60	tmp = tmp->head;
61	tmp->remove ();
62	tmp->destroy ();
63	tmp = GET_MAP_OB (map, i, j);
64	}
65	if (tmp == NULL)
66	break;
67	}
68	}
69	}
70
71
72
73	/* copy in_map into dest_map at point x,y */
74
75
76	void
77	include_map_in_map (maptile dest_map, maptile in_map, int x, int y)
78	{
79	int i, j;
80	object *tmp;
81	object *new_ob;
82
83	/* First, splatter everything in the dest map at the location */
84	nuke_map_region (dest_map, x, y, in_map->width, in_map->height);
85
86	for (i = 0; i < in_map->width; i++)
87	for (j = 0; j < in_map->height; j++)
88	{
89	for (tmp = GET_MAP_OB (in_map, i, j); tmp != NULL; tmp = tmp->above)
90	{
91	/* don't copy things with multiple squares: must be dealt with
92	specially. */
93	if (tmp->head != NULL)
94	continue;
95	new_ob = arch_to_object (tmp->arch);
96	copy_object_with_inv (tmp, new_ob);
97	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
98	add_button_link (new_ob, dest_map, tmp->path_attuned);
99	new_ob->x = i + x;
100	new_ob->y = j + y;
101	insert_multisquare_ob_in_map (new_ob, dest_map);
102	}
103	}
104	}
105
106	int
107	find_spot_for_submap (maptile map, char layout, int ix, int *iy, int xsize, int ysize)
108	{
109	int tries;
110	int i = 0, j = 0; /* initialization may not be needed but prevents compiler warnings */
111	int is_occupied = 0;
112	int l, m;
113
114	/* don't even try to place a submap into a map if the big map isn't
115	sufficiently large. */
116	if (2 * xsize > map->width \|\| 2 * ysize > map->height)
117	return 0;
118
119	/* search a bit for a completely free spot. */
120	for (tries = 0; tries < 20; tries++)
121	{
122	/* pick a random location in the layout */
123	i = RANDOM () % (map->width - xsize - 2) + 1;
124	j = RANDOM () % (map->height - ysize - 2) + 1;
125	is_occupied = 0;
126	for (l = i; l < i + xsize; l++)
127	for (m = j; m < j + ysize; m++)
128	is_occupied \|= layout[l][m];
129	if (!is_occupied)
130	break;
131	}
132
133
134	/* if we failed, relax the restrictions */
135
136	if (is_occupied)
137	{ /* failure, try a relaxed placer. */
138	/* pick a random location in the layout */
139	for (tries = 0; tries < 10; tries++)
140	{
141	i = RANDOM () % (map->width - xsize - 2) + 1;
142	j = RANDOM () % (map->height - ysize - 2) + 1;
143	is_occupied = 0;
144	for (l = i; l < i + xsize; l++)
145	for (m = j; m < j + ysize; m++)
146	if (layout[l][m] == 'C' \|\| layout[l][m] == '>' \|\| layout[l][m] == '<')
147	is_occupied \|= 1;
148	}
149	}
150	if (is_occupied)
151	return 0;
152	*ix = i;
153	*iy = j;
154	return 1;
155	}
156
157
158	void
159	place_fountain_with_specials (maptile *map)
160	{
161	int ix, iy, i = -1, tries = 0;
162	maptile *fountain_style = find_style ("/styles/misc", "fountains", -1);
163	object *fountain = get_archetype ("fountain");
164	object *potion = object::create ();
165
166	pick_random_object (fountain_style)->copy_to (potion);
167
168	while (i < 0 && tries < 10)
169	{
170	ix = RANDOM () % (map->width - 2) + 1;
171	iy = RANDOM () % (map->height - 2) + 1;
172	i = find_free_spot (fountain, map, ix, iy, 1, SIZEOFFREE1 + 1);
173	tries++;
174	}
175
176	if (i == -1)
177	{ /* can't place fountain */
178	fountain->destroy ();
179	potion->destroy ();
180	return;
181	}
182
183	ix += freearr_x[i];
184	iy += freearr_y[i];
185	potion->face = fountain->face;
186	SET_FLAG (potion, FLAG_NO_PICK);
187	SET_FLAG (potion, FLAG_IDENTIFIED);
188	potion->name = potion->name_pl = "fountain";
189	potion->x = ix;
190	potion->y = iy;
191	potion->material = M_ADAMANT;
192	fountain->x = ix;
193	fountain->y = iy;
194	insert_ob_in_map (fountain, map, NULL, 0);
195	insert_ob_in_map (potion, map, NULL, 0);
196	}
197
198	void
199	place_special_exit (maptile map, int hole_type, random_map_params RP)
200	{
201	int ix, iy, i = -1;
202	char buf[16384], style, decor, *mon;
203	maptile *exit_style = find_style ("/styles/misc", "obscure_exits", -1);
204	int g_xsize, g_ysize;
205
206	object *the_exit = object::create ();
207
208	if (!exit_style)
209	return;
210
211	pick_random_object (exit_style)->copy_to (the_exit);
212
213	while (i < 0)
214	{
215	ix = RANDOM () % (map->width - 2) + 1;
216	iy = RANDOM () % (map->height - 2) + 1;
217	i = find_free_spot (the_exit, map, ix, iy, 1, SIZEOFFREE1 + 1);
218	}
219
220	ix += freearr_x[i];
221	iy += freearr_y[i];
222	the_exit->x = ix;
223	the_exit->y = iy;
224
225	if (!hole_type)
226	hole_type = RANDOM () % NR_OF_HOLE_TYPES + 1;
227
228	switch (hole_type)
229	{
230	case GLORY_HOLE: /* treasures */
231	{
232	g_xsize = RANDOM () % 3 + 4 + RP->difficulty / 4;
233	g_ysize = RANDOM () % 3 + 4 + RP->difficulty / 4;
234	style = "onion";
235	decor = "wealth2";
236	mon = "none";
237	break;
238	}
239
240	case ORC_ZONE: /* hole with orcs in it. */
241	{
242	g_xsize = RANDOM () % 3 + 4 + RP->difficulty / 4;
243	g_ysize = RANDOM () % 3 + 4 + RP->difficulty / 4;
244	style = "onion";
245	decor = "wealth2";
246	mon = "orc";
247	break;
248	}
249
250	case MINING_ZONE: /* hole with orcs in it. */
251	{
252	g_xsize = RANDOM () % 9 + 4 + RP->difficulty / 4;
253	g_ysize = RANDOM () % 9 + 4 + RP->difficulty / 4;
254	style = "maze";
255	decor = "minerals2";
256	mon = "none";
257	break;
258	}
259
260	default: /* undefined */
261	LOG (llevError, "place_special_exit: undefined hole type %d\n", hole_type);
262	return;
263	break;
264	}
265
266	/* Need to be at least this size, otherwise the load
267	* code will generate new size values which are too large.
268	*/
269	if (g_xsize < MIN_RANDOM_MAP_SIZE)
270	g_xsize = MIN_RANDOM_MAP_SIZE;
271	if (g_ysize < MIN_RANDOM_MAP_SIZE)
272	g_ysize = MIN_RANDOM_MAP_SIZE;
273
274	write_parameters_to_string (buf, g_xsize, g_ysize, RP->wallstyle, RP->floorstyle, mon,
275	"none", style, decor, "none", RP->exitstyle, 0, 0, 0,
276	RMOPT_WALLS_ONLY, 0, 0, 1, RP->dungeon_level, RP->dungeon_level,
277	RP->difficulty, RP->difficulty, -1, 1, 0, 0, 0, 0, RP->difficulty_increase);
278	the_exit->slaying = "/!";
279	the_exit->msg = buf;
280
281	insert_ob_in_map (the_exit, map, NULL, 0);
282	}
283
284
285	void
286	place_specials_in_map (maptile map, char layout, random_map_params RP)
287	{
288	maptile *special_map;
289	int ix, iy; /* map insertion locatons */
290	int special_type; /* type of special to make */
291
292
293	special_type = RANDOM () % NUM_OF_SPECIAL_TYPES;
294	switch (special_type)
295	{
296
297	/* includes a special map into the random map being made. */
298	case SPECIAL_SUBMAP:
299	{
300	special_map = find_style ("/styles/specialmaps", 0, RP->difficulty);
301	if (special_map == NULL)
302	return;
303
304	if (find_spot_for_submap (map, layout, &ix, &iy, special_map->width, special_map->height))
305	include_map_in_map (map, special_map, ix, iy);
306	break;
307	}
308
309	/* Make a special fountain: an unpickable potion disguised as
310	a fountain, or rather, colocated with a fountain. */
311	case SPECIAL_FOUNTAIN:
312	{
313	place_fountain_with_specials (map);
314	break;
315	}
316
317	/* Make an exit to another random map, e.g. a gloryhole. */
318	case SPECIAL_EXIT:
319	{
320	place_special_exit (map, 0, RP);
321	break;
322	}
323	}
324
325	}