server/random_maps/special.C

/*
    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@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, 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 (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 (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 (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 (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 */
      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, RMParms * 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 (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 (maptile *map, char **layout, RMParms * 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, 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:	1.9
Committed:	Wed Dec 20 09:14:22 2006 UTC (17 years, 5 months ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.8:	+3 -3 lines
Log Message:	- minor cleanups - minor optimisations (in_player vs. is_player_inv) - added P_PLAYER map flag - some (dead) concept code
#	Content
1	/*
2	CrossFire, A Multiplayer game for X-windows
3
4	Copyright (C) 2002 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen
6
7	This program is free software; you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or
10	(at your option) any later version.
11
12	This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.
16
17	You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20
21	The authors can be reached via e-mail at <crossfire@schmorp.de>
22	*/
23
24	/* Specials in this file:
25	included maps */
26
27	#include <global.h>
28	#include <random_map.h>
29	#include <rproto.h>
30
31	#define NUM_OF_SPECIAL_TYPES 4
32	#define NO_SPECIAL 0
33	#define SPECIAL_SUBMAP 1
34	#define SPECIAL_FOUNTAIN 2
35	#define SPECIAL_EXIT 3
36
37	#define GLORY_HOLE 1
38	#define ORC_ZONE 2
39	#define MINING_ZONE 3
40	#define NR_OF_HOLE_TYPES 3
41
42	/* clear map completely of all objects: a rectangular area of xsize, ysize
43	is cleared with the top left corner at xstart, ystart */
44
45	void
46	nuke_map_region (maptile *map, int xstart, int ystart, int xsize, int ysize)
47	{
48	int i, j;
49	object *tmp;
50
51	for (i = xstart; i < xstart + xsize; i++)
52	for (j = ystart; j < ystart + ysize; j++)
53	{
54	for (tmp = GET_MAP_OB (map, i, j); tmp != NULL; tmp = tmp->above)
55	{
56	if (!QUERY_FLAG (tmp, FLAG_IS_FLOOR))
57	{
58	if (tmp->head)
59	tmp = tmp->head;
60	tmp->remove ();
61	tmp->destroy ();
62	tmp = GET_MAP_OB (map, i, j);
63	}
64	if (tmp == NULL)
65	break;
66	}
67	}
68	}
69
70
71
72	/* copy in_map into dest_map at point x,y */
73
74
75	void
76	include_map_in_map (maptile dest_map, maptile in_map, int x, int y)
77	{
78	int i, j;
79	object *tmp;
80	object *new_ob;
81
82	/* First, splatter everything in the dest map at the location */
83	nuke_map_region (dest_map, x, y, MAP_WIDTH (in_map), MAP_HEIGHT (in_map));
84
85	for (i = 0; i < MAP_WIDTH (in_map); i++)
86	for (j = 0; j < MAP_HEIGHT (in_map); j++)
87	{
88	for (tmp = GET_MAP_OB (in_map, i, j); tmp != NULL; tmp = tmp->above)
89	{
90	/* don't copy things with multiple squares: must be dealt with
91	specially. */
92	if (tmp->head != NULL)
93	continue;
94	new_ob = arch_to_object (tmp->arch);
95	copy_object_with_inv (tmp, new_ob);
96	if (QUERY_FLAG (tmp, FLAG_IS_LINKED))
97	add_button_link (new_ob, dest_map, tmp->path_attuned);
98	new_ob->x = i + x;
99	new_ob->y = j + y;
100	insert_multisquare_ob_in_map (new_ob, dest_map);
101	}
102	}
103	}
104
105	int
106	find_spot_for_submap (maptile map, char layout, int ix, int *iy, int xsize, int ysize)
107	{
108	int tries;
109	int i = 0, j = 0; /* initialization may not be needed but prevents compiler warnings */
110	int is_occupied = 0;
111	int l, m;
112
113	/* don't even try to place a submap into a map if the big map isn't
114	sufficiently large. */
115	if (2 * xsize > MAP_WIDTH (map) \|\| 2 * ysize > MAP_HEIGHT (map))
116	return 0;
117
118	/* search a bit for a completely free spot. */
119	for (tries = 0; tries < 20; tries++)
120	{
121	/* pick a random location in the layout */
122	i = RANDOM () % (MAP_WIDTH (map) - xsize - 2) + 1;
123	j = RANDOM () % (MAP_HEIGHT (map) - ysize - 2) + 1;
124	is_occupied = 0;
125	for (l = i; l < i + xsize; l++)
126	for (m = j; m < j + ysize; m++)
127	is_occupied \|= layout[l][m];
128	if (!is_occupied)
129	break;
130	}
131
132
133	/* if we failed, relax the restrictions */
134
135	if (is_occupied)
136	{ /* failure, try a relaxed placer. */
137	/* pick a random location in the layout */
138	for (tries = 0; tries < 10; tries++)
139	{
140	i = RANDOM () % (MAP_WIDTH (map) - xsize - 2) + 1;
141	j = RANDOM () % (MAP_HEIGHT (map) - ysize - 2) + 1;
142	is_occupied = 0;
143	for (l = i; l < i + xsize; l++)
144	for (m = j; m < j + ysize; m++)
145	if (layout[l][m] == 'C' \|\| layout[l][m] == '>' \|\| layout[l][m] == '<')
146	is_occupied \|= 1;
147	}
148	}
149	if (is_occupied)
150	return 0;
151	*ix = i;
152	*iy = j;
153	return 1;
154	}
155
156
157	void
158	place_fountain_with_specials (maptile *map)
159	{
160	int ix, iy, i = -1, tries = 0;
161	maptile *fountain_style = find_style ("/styles/misc", "fountains", -1);
162	object *fountain = get_archetype ("fountain");
163	object *potion = object::create ();
164
165	pick_random_object (fountain_style)->copy_to (potion);
166
167	while (i < 0 && tries < 10)
168	{
169	ix = RANDOM () % (MAP_WIDTH (map) - 2) + 1;
170	iy = RANDOM () % (MAP_HEIGHT (map) - 2) + 1;
171	i = find_first_free_spot (fountain, map, ix, iy);
172	tries++;
173	}
174
175	if (i == -1)
176	{ /* can't place fountain */
177	fountain->destroy ();
178	potion->destroy ();
179	return;
180	}
181
182	ix += freearr_x[i];
183	iy += freearr_y[i];
184	potion->face = fountain->face;
185	SET_FLAG (potion, FLAG_NO_PICK);
186	SET_FLAG (potion, FLAG_IDENTIFIED);
187	potion->name = potion->name_pl = "fountain";
188	potion->x = ix;
189	potion->y = iy;
190	potion->material = M_ADAMANT;
191	fountain->x = ix;
192	fountain->y = iy;
193	insert_ob_in_map (fountain, map, NULL, 0);
194	insert_ob_in_map (potion, map, NULL, 0);
195
196	}
197
198	void
199	place_special_exit (maptile map, int hole_type, RMParms RP)
200	{
201	int ix, iy, i = -1;
202	char buf[HUGE_BUF], 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 (map) - 2) + 1;
216	iy = RANDOM () % (MAP_HEIGHT (map) - 2) + 1;
217	i = find_first_free_spot (the_exit, map, ix, iy);
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	OPT_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, RMParms 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, MAP_WIDTH (special_map), MAP_HEIGHT (special_map)))
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	}