server/random_maps/special.C


/*
 * static char *rcsid_special_c =
 *   "$Id: special.C,v 1.3 2006-09-03 00:18:41 root Exp $";
 */

/*
    CrossFire, A Multiplayer game for X-windows

    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-devel@real-time.com
*/

/*  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 (mapstruct *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;
                remove_ob (tmp);
                free_object (tmp);
                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 (mapstruct *dest_map, mapstruct *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, MAP_WIDTH (in_map), MAP_HEIGHT (in_map));

  for (i = 0; i < MAP_WIDTH (in_map); i++)
    for (j = 0; j < MAP_HEIGHT (in_map); 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 (mapstruct *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 (map) || 2 * ysize > MAP_HEIGHT (map))
    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 (map) - xsize - 2) + 1;
      j = RANDOM () % (MAP_HEIGHT (map) - 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 (map) - xsize - 2) + 1;
          j = RANDOM () % (MAP_HEIGHT (map) - 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 (mapstruct *map)
{
  int ix, iy, i = -1, tries = 0;
  mapstruct *fountain_style = find_style ("/styles/misc", "fountains", -1);
  object *fountain = get_archetype ("fountain");
  object *potion = get_object ();

  copy_object (pick_random_object (fountain_style), potion);
  while (i < 0 && tries < 10)
    {
      ix = RANDOM () % (MAP_WIDTH (map) - 2) + 1;
      iy = RANDOM () % (MAP_HEIGHT (map) - 2) + 1;
      i = find_first_free_spot (fountain, map, ix, iy);
      tries++;
    };
  if (i == -1)
    {                           /* can't place fountain */
      free_object (fountain);
      free_object (potion);
      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 (mapstruct *map, int hole_type, RMParms * RP)
{
  int ix, iy, i = -1;
  char buf[HUGE_BUF], *style, *decor, *mon;
  mapstruct *exit_style = find_style ("/styles/misc", "obscure_exits", -1);
  int g_xsize, g_ysize;

  object *the_exit = get_object ();

  if (!exit_style)
    return;

  copy_object (pick_random_object (exit_style), the_exit);

  while (i < 0)
    {
      ix = RANDOM () % (MAP_WIDTH (map) - 2) + 1;
      iy = RANDOM () % (MAP_HEIGHT (map) - 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,
                              OPT_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 (mapstruct *map, char **layout, RMParms * RP)
{
  mapstruct *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, MAP_WIDTH (special_map), MAP_HEIGHT (special_map)))
              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:	1.4
Committed:	Sun Sep 10 16:06:37 2006 UTC (17 years, 9 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.3:	+237 -193 lines
Log Message:	indent
#	Content
1
2	/*
3	* static char *rcsid_special_c =
4	* "$Id: special.C,v 1.3 2006-09-03 00:18:41 root Exp $";
5	*/
6
7	/*
8	CrossFire, A Multiplayer game for X-windows
9
10	Copyright (C) 2002 Mark Wedel & Crossfire Development Team
11	Copyright (C) 1992 Frank Tore Johansen
12
13	This program is free software; you can redistribute it and/or modify
14	it under the terms of the GNU General Public License as published by
15	the Free Software Foundation; either version 2 of the License, or
16	(at your option) any later version.
17
18	This program is distributed in the hope that it will be useful,
19	but WITHOUT ANY WARRANTY; without even the implied warranty of
20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21	GNU General Public License for more details.
22
23	You should have received a copy of the GNU General Public License
24	along with this program; if not, write to the Free Software
25	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
26
27	The authors can be reached via e-mail at crossfire-devel@real-time.com
28	*/
29
30	/* Specials in this file:
31	included maps */
32
33	#include <global.h>
34	#include <random_map.h>
35	#include <rproto.h>
36
37	#define NUM_OF_SPECIAL_TYPES 4
38	#define NO_SPECIAL 0
39	#define SPECIAL_SUBMAP 1
40	#define SPECIAL_FOUNTAIN 2
41	#define SPECIAL_EXIT 3
42
43	#define GLORY_HOLE 1
44	#define ORC_ZONE 2
45	#define MINING_ZONE 3
46	#define NR_OF_HOLE_TYPES 3
47
48	/* clear map completely of all objects: a rectangular area of xsize, ysize
49	is cleared with the top left corner at xstart, ystart */
50
51	void
52	nuke_map_region (mapstruct *map, int xstart, int ystart, int xsize, int ysize)
53	{
54	int i, j;
55	object *tmp;
56
57	for (i = xstart; i < xstart + xsize; i++)
58	for (j = ystart; j < ystart + ysize; j++)
59	{
60	for (tmp = get_map_ob (map, i, j); tmp != NULL; tmp = tmp->above)
61	{
62	if (!QUERY_FLAG (tmp, FLAG_IS_FLOOR))
63	{
64	if (tmp->head)
65	tmp = tmp->head;
66	remove_ob (tmp);
67	free_object (tmp);
68	tmp = get_map_ob (map, i, j);
69	}
70	if (tmp == NULL)
71	break;
72	}
73	}
74	}
75
76
77
78	/* copy in_map into dest_map at point x,y */
79
80
81	void
82	include_map_in_map (mapstruct dest_map, mapstruct in_map, int x, int y)
83	{
84	int i, j;
85	object *tmp;
86	object *new_ob;
87
88	/* First, splatter everything in the dest map at the location */
89	nuke_map_region (dest_map, x, y, MAP_WIDTH (in_map), MAP_HEIGHT (in_map));
90
91	for (i = 0; i < MAP_WIDTH (in_map); i++)
92	for (j = 0; j < MAP_HEIGHT (in_map); j++)
93	{
94	for (tmp = get_map_ob (in_map, i, j); tmp != NULL; tmp = tmp->above)
95	{
96	/* don't copy things with multiple squares: must be dealt with
97	specially. */
98	if (tmp->head != NULL)
99	continue;
100	new_ob = arch_to_object (tmp->arch);
101	copy_object_with_inv (tmp, new_ob);
102	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
103	add_button_link (new_ob, dest_map, tmp->path_attuned);
104	new_ob->x = i + x;
105	new_ob->y = j + y;
106	insert_multisquare_ob_in_map (new_ob, dest_map);
107	}
108	}
109	}
110
111	int
112	find_spot_for_submap (mapstruct map, char layout, int ix, int *iy, int xsize, int ysize)
113	{
114	int tries;
115	int i = 0, j = 0; /* initialization may not be needed but prevents compiler warnings */
116	int is_occupied = 0;
117	int l, m;
118
119	/* don't even try to place a submap into a map if the big map isn't
120	sufficiently large. */
121	if (2 * xsize > MAP_WIDTH (map) \|\| 2 * ysize > MAP_HEIGHT (map))
122	return 0;
123
124	/* search a bit for a completely free spot. */
125	for (tries = 0; tries < 20; tries++)
126	{
127	/* pick a random location in the layout */
128	i = RANDOM () % (MAP_WIDTH (map) - xsize - 2) + 1;
129	j = RANDOM () % (MAP_HEIGHT (map) - ysize - 2) + 1;
130	is_occupied = 0;
131	for (l = i; l < i + xsize; l++)
132	for (m = j; m < j + ysize; m++)
133	is_occupied \|= layout[l][m];
134	if (!is_occupied)
135	break;
136	}
137
138
139	/* if we failed, relax the restrictions */
140
141	if (is_occupied)
142	{ /* failure, try a relaxed placer. */
143	/* pick a random location in the layout */
144	for (tries = 0; tries < 10; tries++)
145	{
146	i = RANDOM () % (MAP_WIDTH (map) - xsize - 2) + 1;
147	j = RANDOM () % (MAP_HEIGHT (map) - ysize - 2) + 1;
148	is_occupied = 0;
149	for (l = i; l < i + xsize; l++)
150	for (m = j; m < j + ysize; m++)
151	if (layout[l][m] == 'C' \|\| layout[l][m] == '>' \|\| layout[l][m] == '<')
152	is_occupied \|= 1;
153	}
154	}
155	if (is_occupied)
156	return 0;
157	*ix = i;
158	*iy = j;
159	return 1;
160	}
161
162
163	void
164	place_fountain_with_specials (mapstruct *map)
165	{
166	int ix, iy, i = -1, tries = 0;
167	mapstruct *fountain_style = find_style ("/styles/misc", "fountains", -1);
168	object *fountain = get_archetype ("fountain");
169	object *potion = get_object ();
170
171	copy_object (pick_random_object (fountain_style), potion);
172	while (i < 0 && tries < 10)
173	{
174	ix = RANDOM () % (MAP_WIDTH (map) - 2) + 1;
175	iy = RANDOM () % (MAP_HEIGHT (map) - 2) + 1;
176	i = find_first_free_spot (fountain, map, ix, iy);
177	tries++;
178	};
179	if (i == -1)
180	{ /* can't place fountain */
181	free_object (fountain);
182	free_object (potion);
183	return;
184	}
185	ix += freearr_x[i];
186	iy += freearr_y[i];
187	potion->face = fountain->face;
188	SET_FLAG (potion, FLAG_NO_PICK);
189	SET_FLAG (potion, FLAG_IDENTIFIED);
190	potion->name = potion->name_pl = "fountain";
191	potion->x = ix;
192	potion->y = iy;
193	potion->material = M_ADAMANT;
194	fountain->x = ix;
195	fountain->y = iy;
196	insert_ob_in_map (fountain, map, NULL, 0);
197	insert_ob_in_map (potion, map, NULL, 0);
198
199	}
200
201	void
202	place_special_exit (mapstruct map, int hole_type, RMParms RP)
203	{
204	int ix, iy, i = -1;
205	char buf[HUGE_BUF], style, decor, *mon;
206	mapstruct *exit_style = find_style ("/styles/misc", "obscure_exits", -1);
207	int g_xsize, g_ysize;
208
209	object *the_exit = get_object ();
210
211	if (!exit_style)
212	return;
213
214	copy_object (pick_random_object (exit_style), the_exit);
215
216	while (i < 0)
217	{
218	ix = RANDOM () % (MAP_WIDTH (map) - 2) + 1;
219	iy = RANDOM () % (MAP_HEIGHT (map) - 2) + 1;
220	i = find_first_free_spot (the_exit, map, ix, iy);
221	}
222
223	ix += freearr_x[i];
224	iy += freearr_y[i];
225	the_exit->x = ix;
226	the_exit->y = iy;
227
228	if (!hole_type)
229	hole_type = RANDOM () % NR_OF_HOLE_TYPES + 1;
230
231	switch (hole_type)
232	{
233	case GLORY_HOLE: /* treasures */
234	{
235	g_xsize = RANDOM () % 3 + 4 + RP->difficulty / 4;
236	g_ysize = RANDOM () % 3 + 4 + RP->difficulty / 4;
237	style = "onion";
238	decor = "wealth2";
239	mon = "none";
240	break;
241	}
242
243	case ORC_ZONE: /* hole with orcs in it. */
244	{
245	g_xsize = RANDOM () % 3 + 4 + RP->difficulty / 4;
246	g_ysize = RANDOM () % 3 + 4 + RP->difficulty / 4;
247	style = "onion";
248	decor = "wealth2";
249	mon = "orc";
250	break;
251	}
252
253	case MINING_ZONE: /* hole with orcs in it. */
254	{
255	g_xsize = RANDOM () % 9 + 4 + RP->difficulty / 4;
256	g_ysize = RANDOM () % 9 + 4 + RP->difficulty / 4;
257	style = "maze";
258	decor = "minerals2";
259	mon = "none";
260	break;
261	}
262
263	default: /* undefined */
264	LOG (llevError, "place_special_exit: undefined hole type %d\n", hole_type);
265	return;
266	break;
267	}
268
269	/* Need to be at least this size, otherwise the load
270	* code will generate new size values which are too large.
271	*/
272	if (g_xsize < MIN_RANDOM_MAP_SIZE)
273	g_xsize = MIN_RANDOM_MAP_SIZE;
274	if (g_ysize < MIN_RANDOM_MAP_SIZE)
275	g_ysize = MIN_RANDOM_MAP_SIZE;
276
277	write_parameters_to_string (buf, g_xsize, g_ysize, RP->wallstyle, RP->floorstyle, mon,
278	"none", style, decor, "none", RP->exitstyle, 0, 0, 0,
279	OPT_WALLS_ONLY, 0, 0, 1, RP->dungeon_level, RP->dungeon_level,
280	RP->difficulty, RP->difficulty, -1, 1, 0, 0, 0, 0, RP->difficulty_increase);
281	the_exit->slaying = "/!";
282	the_exit->msg = buf;
283
284	insert_ob_in_map (the_exit, map, NULL, 0);
285	}
286
287
288	void
289	place_specials_in_map (mapstruct map, char layout, RMParms RP)
290	{
291	mapstruct *special_map;
292	int ix, iy; /* map insertion locatons */
293	int special_type; /* type of special to make */
294
295
296	special_type = RANDOM () % NUM_OF_SPECIAL_TYPES;
297	switch (special_type)
298	{
299
300	/* includes a special map into the random map being made. */
301	case SPECIAL_SUBMAP:
302	{
303	special_map = find_style ("/styles/specialmaps", 0, RP->difficulty);
304	if (special_map == NULL)
305	return;
306
307	if (find_spot_for_submap (map, layout, &ix, &iy, MAP_WIDTH (special_map), MAP_HEIGHT (special_map)))
308	include_map_in_map (map, special_map, ix, iy);
309	break;
310	}
311
312	/* Make a special fountain: an unpickable potion disguised as
313	a fountain, or rather, colocated with a fountain. */
314	case SPECIAL_FOUNTAIN:
315	{
316	place_fountain_with_specials (map);
317	break;
318	}
319
320	/* Make an exit to another random map, e.g. a gloryhole. */
321	case SPECIAL_EXIT:
322	{
323	place_special_exit (map, 0, RP);
324	break;
325	}
326	}
327
328	}