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_first_free_spot (fountain, map, ix, iy);
      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[HUGE_BUF], *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_first_free_spot (the_exit, map, ix, iy);
    }

  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:	1.13
Committed:	Sat Jan 6 14:42:30 2007 UTC (17 years, 5 months ago) by pippijn
Content type:	text/plain
Branch:	MAIN
Changes since 1.12:	+1 -0 lines
Log Message:	added some copyrights
#	Content
1
2	/*
3	CrossFire, A Multiplayer game for X-windows
4
5	Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team
6	Copyright (C) 2002 Mark Wedel & Crossfire Development Team
7	Copyright (C) 1992 Frank Tore Johansen
8
9	This program is free software; you can redistribute it and/or modify
10	it under the terms of the GNU General Public License as published by
11	the Free Software Foundation; either version 2 of the License, or
12	(at your option) any later version.
13
14	This program is distributed in the hope that it will be useful,
15	but WITHOUT ANY WARRANTY; without even the implied warranty of
16	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17	GNU General Public License for more details.
18
19	You should have received a copy of the GNU General Public License
20	along with this program; if not, write to the Free Software
21	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22
23	The authors can be reached via e-mail at <crossfire@schmorp.de>
24	*/
25
26	/* Specials in this file:
27	included maps */
28
29	#include <global.h>
30	#include <random_map.h>
31	#include <rproto.h>
32
33	#define NUM_OF_SPECIAL_TYPES 4
34	#define NO_SPECIAL 0
35	#define SPECIAL_SUBMAP 1
36	#define SPECIAL_FOUNTAIN 2
37	#define SPECIAL_EXIT 3
38
39	#define GLORY_HOLE 1
40	#define ORC_ZONE 2
41	#define MINING_ZONE 3
42	#define NR_OF_HOLE_TYPES 3
43
44	/* clear map completely of all objects: a rectangular area of xsize, ysize
45	is cleared with the top left corner at xstart, ystart */
46
47	void
48	nuke_map_region (maptile *map, int xstart, int ystart, int xsize, int ysize)
49	{
50	int i, j;
51	object *tmp;
52
53	for (i = xstart; i < xstart + xsize; i++)
54	for (j = ystart; j < ystart + ysize; j++)
55	{
56	for (tmp = GET_MAP_OB (map, i, j); tmp != NULL; tmp = tmp->above)
57	{
58	if (!QUERY_FLAG (tmp, FLAG_IS_FLOOR))
59	{
60	if (tmp->head)
61	tmp = tmp->head;
62	tmp->remove ();
63	tmp->destroy ();
64	tmp = GET_MAP_OB (map, i, j);
65	}
66	if (tmp == NULL)
67	break;
68	}
69	}
70	}
71
72
73
74	/* copy in_map into dest_map at point x,y */
75
76
77	void
78	include_map_in_map (maptile dest_map, maptile in_map, int x, int y)
79	{
80	int i, j;
81	object *tmp;
82	object *new_ob;
83
84	/* First, splatter everything in the dest map at the location */
85	nuke_map_region (dest_map, x, y, in_map->width, in_map->height);
86
87	for (i = 0; i < in_map->width; i++)
88	for (j = 0; j < in_map->height; j++)
89	{
90	for (tmp = GET_MAP_OB (in_map, i, j); tmp != NULL; tmp = tmp->above)
91	{
92	/* don't copy things with multiple squares: must be dealt with
93	specially. */
94	if (tmp->head != NULL)
95	continue;
96	new_ob = arch_to_object (tmp->arch);
97	copy_object_with_inv (tmp, new_ob);
98	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
99	add_button_link (new_ob, dest_map, tmp->path_attuned);
100	new_ob->x = i + x;
101	new_ob->y = j + y;
102	insert_multisquare_ob_in_map (new_ob, dest_map);
103	}
104	}
105	}
106
107	int
108	find_spot_for_submap (maptile map, char layout, int ix, int *iy, int xsize, int ysize)
109	{
110	int tries;
111	int i = 0, j = 0; /* initialization may not be needed but prevents compiler warnings */
112	int is_occupied = 0;
113	int l, m;
114
115	/* don't even try to place a submap into a map if the big map isn't
116	sufficiently large. */
117	if (2 * xsize > map->width \|\| 2 * ysize > map->height)
118	return 0;
119
120	/* search a bit for a completely free spot. */
121	for (tries = 0; tries < 20; tries++)
122	{
123	/* pick a random location in the layout */
124	i = RANDOM () % (map->width - xsize - 2) + 1;
125	j = RANDOM () % (map->height - ysize - 2) + 1;
126	is_occupied = 0;
127	for (l = i; l < i + xsize; l++)
128	for (m = j; m < j + ysize; m++)
129	is_occupied \|= layout[l][m];
130	if (!is_occupied)
131	break;
132	}
133
134
135	/* if we failed, relax the restrictions */
136
137	if (is_occupied)
138	{ /* failure, try a relaxed placer. */
139	/* pick a random location in the layout */
140	for (tries = 0; tries < 10; tries++)
141	{
142	i = RANDOM () % (map->width - xsize - 2) + 1;
143	j = RANDOM () % (map->height - ysize - 2) + 1;
144	is_occupied = 0;
145	for (l = i; l < i + xsize; l++)
146	for (m = j; m < j + ysize; m++)
147	if (layout[l][m] == 'C' \|\| layout[l][m] == '>' \|\| layout[l][m] == '<')
148	is_occupied \|= 1;
149	}
150	}
151	if (is_occupied)
152	return 0;
153	*ix = i;
154	*iy = j;
155	return 1;
156	}
157
158
159	void
160	place_fountain_with_specials (maptile *map)
161	{
162	int ix, iy, i = -1, tries = 0;
163	maptile *fountain_style = find_style ("/styles/misc", "fountains", -1);
164	object *fountain = get_archetype ("fountain");
165	object *potion = object::create ();
166
167	pick_random_object (fountain_style)->copy_to (potion);
168
169	while (i < 0 && tries < 10)
170	{
171	ix = RANDOM () % (map->width - 2) + 1;
172	iy = RANDOM () % (map->height - 2) + 1;
173	i = find_first_free_spot (fountain, map, ix, iy);
174	tries++;
175	}
176
177	if (i == -1)
178	{ /* can't place fountain */
179	fountain->destroy ();
180	potion->destroy ();
181	return;
182	}
183
184	ix += freearr_x[i];
185	iy += freearr_y[i];
186	potion->face = fountain->face;
187	SET_FLAG (potion, FLAG_NO_PICK);
188	SET_FLAG (potion, FLAG_IDENTIFIED);
189	potion->name = potion->name_pl = "fountain";
190	potion->x = ix;
191	potion->y = iy;
192	potion->material = M_ADAMANT;
193	fountain->x = ix;
194	fountain->y = iy;
195	insert_ob_in_map (fountain, map, NULL, 0);
196	insert_ob_in_map (potion, map, NULL, 0);
197
198	}
199
200	void
201	place_special_exit (maptile map, int hole_type, random_map_params RP)
202	{
203	int ix, iy, i = -1;
204	char buf[HUGE_BUF], style, decor, *mon;
205	maptile *exit_style = find_style ("/styles/misc", "obscure_exits", -1);
206	int g_xsize, g_ysize;
207
208	object *the_exit = object::create ();
209
210	if (!exit_style)
211	return;
212
213	pick_random_object (exit_style)->copy_to (the_exit);
214
215	while (i < 0)
216	{
217	ix = RANDOM () % (map->width - 2) + 1;
218	iy = RANDOM () % (map->height - 2) + 1;
219	i = find_first_free_spot (the_exit, map, ix, iy);
220	}
221
222	ix += freearr_x[i];
223	iy += freearr_y[i];
224	the_exit->x = ix;
225	the_exit->y = iy;
226
227	if (!hole_type)
228	hole_type = RANDOM () % NR_OF_HOLE_TYPES + 1;
229
230	switch (hole_type)
231	{
232	case GLORY_HOLE: /* treasures */
233	{
234	g_xsize = RANDOM () % 3 + 4 + RP->difficulty / 4;
235	g_ysize = RANDOM () % 3 + 4 + RP->difficulty / 4;
236	style = "onion";
237	decor = "wealth2";
238	mon = "none";
239	break;
240	}
241
242	case ORC_ZONE: /* hole with orcs in it. */
243	{
244	g_xsize = RANDOM () % 3 + 4 + RP->difficulty / 4;
245	g_ysize = RANDOM () % 3 + 4 + RP->difficulty / 4;
246	style = "onion";
247	decor = "wealth2";
248	mon = "orc";
249	break;
250	}
251
252	case MINING_ZONE: /* hole with orcs in it. */
253	{
254	g_xsize = RANDOM () % 9 + 4 + RP->difficulty / 4;
255	g_ysize = RANDOM () % 9 + 4 + RP->difficulty / 4;
256	style = "maze";
257	decor = "minerals2";
258	mon = "none";
259	break;
260	}
261
262	default: /* undefined */
263	LOG (llevError, "place_special_exit: undefined hole type %d\n", hole_type);
264	return;
265	break;
266	}
267
268	/* Need to be at least this size, otherwise the load
269	* code will generate new size values which are too large.
270	*/
271	if (g_xsize < MIN_RANDOM_MAP_SIZE)
272	g_xsize = MIN_RANDOM_MAP_SIZE;
273	if (g_ysize < MIN_RANDOM_MAP_SIZE)
274	g_ysize = MIN_RANDOM_MAP_SIZE;
275
276	write_parameters_to_string (buf, g_xsize, g_ysize, RP->wallstyle, RP->floorstyle, mon,
277	"none", style, decor, "none", RP->exitstyle, 0, 0, 0,
278	RMOPT_WALLS_ONLY, 0, 0, 1, RP->dungeon_level, RP->dungeon_level,
279	RP->difficulty, RP->difficulty, -1, 1, 0, 0, 0, 0, RP->difficulty_increase);
280	the_exit->slaying = "/!";
281	the_exit->msg = buf;
282
283	insert_ob_in_map (the_exit, map, NULL, 0);
284	}
285
286
287	void
288	place_specials_in_map (maptile map, char layout, random_map_params RP)
289	{
290	maptile *special_map;
291	int ix, iy; /* map insertion locatons */
292	int special_type; /* type of special to make */
293
294
295	special_type = RANDOM () % NUM_OF_SPECIAL_TYPES;
296	switch (special_type)
297	{
298
299	/* includes a special map into the random map being made. */
300	case SPECIAL_SUBMAP:
301	{
302	special_map = find_style ("/styles/specialmaps", 0, RP->difficulty);
303	if (special_map == NULL)
304	return;
305
306	if (find_spot_for_submap (map, layout, &ix, &iy, special_map->width, special_map->height))
307	include_map_in_map (map, special_map, ix, iy);
308	break;
309	}
310
311	/* Make a special fountain: an unpickable potion disguised as
312	a fountain, or rather, colocated with a fountain. */
313	case SPECIAL_FOUNTAIN:
314	{
315	place_fountain_with_specials (map);
316	break;
317	}
318
319	/* Make an exit to another random map, e.g. a gloryhole. */
320	case SPECIAL_EXIT:
321	{
322	place_special_exit (map, 0, RP);
323	break;
324	}
325	}
326
327	}