server/server/quadland.C

/*
 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
 * 
 * Copyright (©) 2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
 * 
 * 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>
 */

#include <global.h>

#include "noise.h"

/////////////////////////////////////////////////////////////////////////////

static bool
has_floor (maptile *m, sint16 x, sint16 y)
{
  mapxy pos (m, x, y);

  if (!pos.normalise ())
    return true;

  mapspace &ms = pos.ms ();

  for (object *ob = ms.bot; ob; ob = ob->above)
    if (ob->arch->archname == shstr_quad_open_space)
      return false;
    else if (ob->flag [FLAG_IS_FLOOR])
      return true;

  return false;
}

void
move_into_wall (object *ob, object *wall)
{
  bool visible = !wall->invisible && !ob->flag [FLAG_BLIND];

  if (wall->flag [FLAG_IS_QUAD] && visible)
    {
      maptile *m = wall->map;

      if (m->tile_path [TILE_UP])
        if (maptile *up = m->tile_available (TILE_UP))
          {
            if (ob->blocked (up, ob->x, ob->y) || has_floor (up, ob->x, ob->y))
              ob->failmsg (format ("Ouch, you hit your head while climbing the %s! H<Didn't you see the ceiling? :)>", query_name (wall)));
              //TODO: reduce health
            else if (ob->blocked (up, wall->x, wall->y))
              ob->failmsg (format ("You try to climb up, but the %s is too high for you! H<No free space on top of this block.>", query_name (wall)));
              //TODO: reduce health
            else
               {
                 ob->statusmsg (format ("You successfully climb up the %s.", query_name (wall)));
                 // here we assume that ob is a player...
                 ob->enter_map (up, wall->x, wall->y);
               }
          }
        else
          ob->failmsg (format ("You try to climb the %s, but you fall down! H<Try again.>", query_name (wall)));
      else
        ob->failmsg (format ("You fail to climb up the %s! H<You cannot climb up here.>", query_name (wall)));


      return;
    }

  if (ob->contr->ns->bumpmsg)
    {
      ob->play_sound (sound_find ("bump_wall"));

      ob->statusmsg (visible
         ? format ("You bump into the %s.", query_name (wall))
         : "You bump into something."
      );
    }
}

/////////////////////////////////////////////////////////////////////////////

// this mapspace has changed - potentialyl activate dormant physics objects
// in the vicinity

void update_physics (maptile *m, int x, int y)
{
}

// handle physics updates
void move_physics (object *ob)
{
}

/////////////////////////////////////////////////////////////////////////////

#define FANCY_GRAPHICS 0

static void
gen_quadspace (maptile *m, int mx, int my, int x, int y, int z)
{
  vec2d P = vec2d (x, y);

  const int deep_sea_z = -200;

  static frac2d gen(13);

  static frac2d vec_gen1 (6, 2, 0.5, 1);
  static frac2d vec_gen2 (6, 2, 0.5, 2);

  const float continent_scale = 0.00008;

  vec2d perturb_pos = pow (P, 1.4) * 1e-5;

  vec2d perturb (
     vec_gen1.fBm (perturb_pos),
     vec_gen2.fBm (perturb_pos)
  );

  float perturb_perturb = 1 - (P[1] - P[0]) * (1. / 25000 / 2);
  perturb_perturb = perturb_perturb * perturb_perturb * 0.4;
  perturb *= perturb_perturb;

  vec2d P_continent = P * continent_scale + perturb;

  static frac2d continent_gen (13, 2.13, 0.5);
  float continent = continent_gen.fBm (P_continent) + 0.05f;

  float x_gradient    = P[0] * (1. / 25000);
  float y_gradient    = P[1] * (1. / 25000);
  float xy_gradient   = (P[0] + P[1]) * (0.5 / 25000);

  const float N = (25000 - 1) * continent_scale;

  // we clip a large border on the perturbed shape, to get irregular coastline
  // and then clip a smaller border around the real shape
  continent = border_blend (-1.f, continent, P_continent                        , N, 400 * continent_scale);
  continent = border_blend (-1.f, continent, P * continent_scale + perturb * 0.1, N, 100 * continent_scale);

  enum {
    T_NONE,
    T_OCEAN,
    T_RIVER,
    T_VALLEY,
    T_MOUNTAIN,
    T_UNDERGROUND,
    T_AIR, // unused
    T_ACQUIFER,
  } t = T_NONE;

  vec3d c;
  int h0 = 0;      // "water level"
  int h = 1000000; // height form heightmap

  // the continent increases in height from 0 to ~700 levels in the absence of anything else
  // thats about one step every 7 maps.
  int base_height  = blend (0, 300, xy_gradient, 0.2f, 0.9f);
  int river_height = base_height * 9 / 10;

  // add this to rivers to "dry them out"
  float dry_out = max (0.f, lerp (xy_gradient, 0.7f, 1.f, 0.f, 0.3f));

  static frac2d river_gen (2);
  float river1 = abs (river_gen.fBm (P * 0.001 + perturb * 4))                              + dry_out;
  float river2 = river_gen.ridgedmultifractal (P * 0.04, 0.8, 10) - y_gradient * 0.2 - 0.16 - dry_out;

  float valley = river1 - 0.2f;

  static frac2d mountain_gen (8, 2.14, 0.5);
  float mountain = mountain_gen.ridgedmultifractal (P * 0.004);

  //TODO: mountains should not lower the height, should they?
  t = valley < 0 ? T_VALLEY : T_MOUNTAIN;
  c = blend0 (vec3d (0, 0.8, 0), vec3d (0.8, 0, 0), valley, 0.1f);
  h = blend0 (base_height + continent * 300, base_height + mountain * xy_gradient * 400, valley, 0.1f);

  if (river1 < 0.01f)
    {
      // main rivers - they cut deeply into the mountains (base_height * 0.9f)
      t = T_RIVER;
      c = vec3d (0.2, 0.2, 1);
      h0 = river_height;
      min_it (h, river_height + lerp<float> (river1, 0.f, 0.01f, -20, -1));
    }

  if (river2 > 0)
    {
      t = T_RIVER;
      c = vec3d (0.2, 0.2, 1);
      h0 = river_height;
      min_it (h, river_height + lerp<float> (river1, 0.f, 0.01f, -5, -1));
    }

  if (continent < 0)
    {
      t = T_OCEAN;
      min_it (h, min (continent * 200, -1));
      c = vec3d (0, 0, 1);
    }

  // now we have the base height, and base terrain

#if FANCY_GRAPHICS
  z = h; // show the surface, not the given z layer
#endif

  max_it (h0, h);

  // everything below the surface is underground, or a variant
  if (z < h)
    t = T_UNDERGROUND;

  // put acquifers a bit below the surface, to reduce them leaking out (will still happen)
  if (z < h - 3)
    {
      static frac3d acquifer_gen (4);
      float acquifer = acquifer_gen.ridgedmultifractal (vec3d (x * 0.001, y * 0.001, z * 0.01), 1.003, 2);

      if (acquifer > 0.48)
        {
          t = T_ACQUIFER;
          c = vec3d (1,1,1);
        }
    }

  // TODO: caves
  // TODO: chees areas
  // TODO: minerals
  // TODO: monsters

#if FANCY_GRAPHICS
  float v = clamp (lerp<float> (h, deep_sea_z, 800, 0.f, 1.f), 0.f, 1.f);
  c *= v;

  putc (clamp<int> (255 * c[0], 0, 255), stdout);
  putc (clamp<int> (255 * c[1], 0, 255), stdout);
  putc (clamp<int> (255 * c[2], 0, 255), stdout);
#else
  shstr arch_floor = shstr ("quad_open_space");
  shstr arch_wall;

  // TODO: this is shit - we should never generatea water surface, but only
  // water above the surface
  switch (t)
    {
      case T_OCEAN:
        if (z < h0)
          arch_wall  = shstr ("quad_water_wall");
        else if (z == h0)
          arch_floor  = shstr ("quad_ocean_floor");
        break;

      case T_RIVER:
        if (z < h0)
          arch_wall  = shstr ("quad_water_wall");
        else if (z == h0)
          arch_floor  = shstr ("quad_water_floor");
        break;

      case T_VALLEY:
        if (z == h)
          arch_floor = shstr ("quad_dirt_floor");
        break;

      case T_MOUNTAIN:
        if (z == h)
          arch_floor = shstr ("quad_stone_floor");
        break;

      case T_UNDERGROUND:
        // todo, use a fractal
        if (z < h - 10)
          {
            arch_floor = shstr ("quad_dirt_floor");
            arch_wall  = shstr ("quad_dirt_wall");
          }
        else
          {
            arch_floor = shstr ("quad_stone_floor");
            arch_wall  = shstr ("quad_stone_wall");
          }
        break;

      case T_ACQUIFER:
        arch_wall  = shstr ("quad_water_wall");
        break;

      default:
        abort ();
    }

  if (arch_floor)
    m->insert (archetype::get (arch_floor), mx, my);

  if (arch_wall)
    m->insert (archetype::get (arch_wall ), mx, my);
#endif
}

void
gen_quadmap (maptile *m, int x, int y, int z)
{
  assert (m->width  == 50);
  assert (m->height == 50);

  for (int mx = 0; mx < 50; ++mx)
    for (int my = 0; my < 50; ++my)
      gen_quadspace (m, mx, my, x + mx, y + my, z);
}

/////////////////////////////////////////////////////////////////////////////

void noise_test ();
void noise_test ()
{
#if 1
  int Nw = 700;

  printf ("P6 %d %d 255\n", Nw * 3, Nw * 2);
  // pmake&&server/deliantra-server >x&&convert -depth 8 -size 512xx512 gray:x x.ppm&& cv x.ppm
  for (int y = 0; y < Nw; ++y)
    {
      if (!(y&63))fprintf (stderr, "y %d\n", y * 50 / Nw);//D

      for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x * 25000 / Nw, y * 25000 / Nw, 0);

      for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x +   400, y, 0);
      for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 22000, y +  2000, 0);
    }
  for (int y = 0; y < Nw; ++y)
    {
      if (!(y&63))fprintf (stderr, "y %d\n", y * 50 / Nw+50);//D

      for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x +  1000, y + 22000, 0);
      for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 12500, y + 12500, 0);
      for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 22000, y + 22500, 0);
    }

          //putc (127 * gen.noise (vec2d (x * 0.01, y * 0.01)) + 128, stdout);
          //putc (256 * gen.terrain2 (x * 0.004, y * 0.004, 8), stdout);
          //putc (256 * gen.fBm (vec2d(x * 0.01, y * 0.01), 16), stdout);
          //putc (256 * gen.turbulence (vec2d (x * 0.004 - 1, y * 0.004 - 1), 10), stdout);
          //putc (256 * gen.heterofractal (vec2d (x * 0.008, y * 0.008), 8, 0.9), stdout);
          //putc (256 * gen.hybridfractal (vec2d (x * 0.01, y * 0.01), 8, -.4, -4), stdout);
          //putc (256 * gen.fBm (vec2d (x * 0.002, y * 0.002), 2), stdout);
          //putc (127.49 * gen.billowfractal (vec2d (x * 0.01, y * 0.01), 9) + 128, stdout);
#elif 1
  int N = 25000;

  printf ("P6 %d %d 255\n", N, N);
  for (int y = 0; y < N; ++y)
    {
      if (!(y&63))fprintf (stderr, "y %d\n", y);//D

      for (int x = 0; x < N; ++x) gen_quadspace (0, 0, 0, x, y, 0);
    }
#else
  int N = 200;

  //printf ("P6 %d %d 255\n", N, N);
  // pmake&&server/deliantra-server >x&&convert -depth 8 -size 512xx512 gray:x x.ppm&& cv x.ppm
  for (int z = 0; z < N; ++z)
    {
      if (!(z&7))fprintf (stderr, "z %d\n", z);//D
  for (int y = 0; y < N; ++y)
    for (int x = 0; x < N; ++x)
      {
#if 0
        float v = gen3.ridgedmultifractal (vec3d (x * 0.001 + 0.2, y * 0.001 + 0.2, z * 0.01 + 0.2), 1.03, 2) * 2;

        if (z < 64)
          v = v * (z * z) / (64 * 64);

        if (v <= 0.9)
          continue;
#endif
        static frac3d gen3 (10);
        //float v = gen3.turbulence (vec3d (x * 0.01, y * 0.01, z * 0.01));
        float v = gen3.ridgedmultifractal (vec3d (x * 0.001, y * 0.001, z * 0.001), 1.003, 2);

        if (v <= 0.48) continue;

        float r[4];
        int i[4];

        r[0] = x;
        r[1] = y;
        r[2] = z;
        r[3] = v;

        memcpy (i, r, 16);

        i[0] = htonl (i[0]);
        i[1] = htonl (i[1]);
        i[2] = htonl (i[2]);
        i[3] = htonl (i[3]);

        fwrite (i, 4*4, 1, stdout);
      }
    }
#endif

  exit (0);
}
Revision:	1.9
Committed:	Wed May 4 07:36:41 2011 UTC (13 years ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.8:	+2 -2 lines
Log Message:	clean up in_memory handling
#	Content
1	/*
2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	*
4	* Copyright (©) 2011 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	*
6	* Deliantra is free software: you can redistribute it and/or modify it under
7	* the terms of the Affero GNU General Public License as published by the
8	* Free Software Foundation, either version 3 of the License, or (at your
9	* option) any later version.
10	*
11	* This program is distributed in the hope that it will be useful,
12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	* GNU General Public License for more details.
15	*
16	* You should have received a copy of the Affero GNU General Public License
17	* and the GNU General Public License along with this program. If not, see
18	* <http://www.gnu.org/licenses/>.
19	*
20	* The authors can be reached via e-mail to <support@deliantra.net>
21	*/
22
23	#include <global.h>
24
25	#include "noise.h"
26
27	/////////////////////////////////////////////////////////////////////////////
28
29	static bool
30	has_floor (maptile *m, sint16 x, sint16 y)
31	{
32	mapxy pos (m, x, y);
33
34	if (!pos.normalise ())
35	return true;
36
37	mapspace &ms = pos.ms ();
38
39	for (object *ob = ms.bot; ob; ob = ob->above)
40	if (ob->arch->archname == shstr_quad_open_space)
41	return false;
42	else if (ob->flag [FLAG_IS_FLOOR])
43	return true;
44
45	return false;
46	}
47
48	void
49	move_into_wall (object ob, object wall)
50	{
51	bool visible = !wall->invisible && !ob->flag [FLAG_BLIND];
52
53	if (wall->flag [FLAG_IS_QUAD] && visible)
54	{
55	maptile *m = wall->map;
56
57	if (m->tile_path [TILE_UP])
58	if (maptile *up = m->tile_available (TILE_UP))
59	{
60	if (ob->blocked (up, ob->x, ob->y) \|\| has_floor (up, ob->x, ob->y))
61	ob->failmsg (format ("Ouch, you hit your head while climbing the %s! H<Didn't you see the ceiling? :)>", query_name (wall)));
62	//TODO: reduce health
63	else if (ob->blocked (up, wall->x, wall->y))
64	ob->failmsg (format ("You try to climb up, but the %s is too high for you! H<No free space on top of this block.>", query_name (wall)));
65	//TODO: reduce health
66	else
67	{
68	ob->statusmsg (format ("You successfully climb up the %s.", query_name (wall)));
69	// here we assume that ob is a player...
70	ob->enter_map (up, wall->x, wall->y);
71	}
72	}
73	else
74	ob->failmsg (format ("You try to climb the %s, but you fall down! H<Try again.>", query_name (wall)));
75	else
76	ob->failmsg (format ("You fail to climb up the %s! H<You cannot climb up here.>", query_name (wall)));
77
78
79	return;
80	}
81
82	if (ob->contr->ns->bumpmsg)
83	{
84	ob->play_sound (sound_find ("bump_wall"));
85
86	ob->statusmsg (visible
87	? format ("You bump into the %s.", query_name (wall))
88	: "You bump into something."
89	);
90	}
91	}
92
93	/////////////////////////////////////////////////////////////////////////////
94
95	// this mapspace has changed - potentialyl activate dormant physics objects
96	// in the vicinity
97
98	void update_physics (maptile *m, int x, int y)
99	{
100	}
101
102	// handle physics updates
103	void move_physics (object *ob)
104	{
105	}
106
107	/////////////////////////////////////////////////////////////////////////////
108
109	#define FANCY_GRAPHICS 0
110
111	static void
112	gen_quadspace (maptile *m, int mx, int my, int x, int y, int z)
113	{
114	vec2d P = vec2d (x, y);
115
116	const int deep_sea_z = -200;
117
118	static frac2d gen(13);
119
120	static frac2d vec_gen1 (6, 2, 0.5, 1);
121	static frac2d vec_gen2 (6, 2, 0.5, 2);
122
123	const float continent_scale = 0.00008;
124
125	vec2d perturb_pos = pow (P, 1.4) * 1e-5;
126
127	vec2d perturb (
128	vec_gen1.fBm (perturb_pos),
129	vec_gen2.fBm (perturb_pos)
130	);
131
132	float perturb_perturb = 1 - (P[1] - P[0]) * (1. / 25000 / 2);
133	perturb_perturb = perturb_perturb * perturb_perturb * 0.4;
134	perturb *= perturb_perturb;
135
136	vec2d P_continent = P * continent_scale + perturb;
137
138	static frac2d continent_gen (13, 2.13, 0.5);
139	float continent = continent_gen.fBm (P_continent) + 0.05f;
140
141	float x_gradient = P[0] * (1. / 25000);
142	float y_gradient = P[1] * (1. / 25000);
143	float xy_gradient = (P[0] + P[1]) * (0.5 / 25000);
144
145	const float N = (25000 - 1) * continent_scale;
146
147	// we clip a large border on the perturbed shape, to get irregular coastline
148	// and then clip a smaller border around the real shape
149	continent = border_blend (-1.f, continent, P_continent , N, 400 * continent_scale);
150	continent = border_blend (-1.f, continent, P * continent_scale + perturb * 0.1, N, 100 * continent_scale);
151
152	enum {
153	T_NONE,
154	T_OCEAN,
155	T_RIVER,
156	T_VALLEY,
157	T_MOUNTAIN,
158	T_UNDERGROUND,
159	T_AIR, // unused
160	T_ACQUIFER,
161	} t = T_NONE;
162
163	vec3d c;
164	int h0 = 0; // "water level"
165	int h = 1000000; // height form heightmap
166
167	// the continent increases in height from 0 to ~700 levels in the absence of anything else
168	// thats about one step every 7 maps.
169	int base_height = blend (0, 300, xy_gradient, 0.2f, 0.9f);
170	int river_height = base_height * 9 / 10;
171
172	// add this to rivers to "dry them out"
173	float dry_out = max (0.f, lerp (xy_gradient, 0.7f, 1.f, 0.f, 0.3f));
174
175	static frac2d river_gen (2);
176	float river1 = abs (river_gen.fBm (P * 0.001 + perturb * 4)) + dry_out;
177	float river2 = river_gen.ridgedmultifractal (P * 0.04, 0.8, 10) - y_gradient * 0.2 - 0.16 - dry_out;
178
179	float valley = river1 - 0.2f;
180
181	static frac2d mountain_gen (8, 2.14, 0.5);
182	float mountain = mountain_gen.ridgedmultifractal (P * 0.004);
183
184	//TODO: mountains should not lower the height, should they?
185	t = valley < 0 ? T_VALLEY : T_MOUNTAIN;
186	c = blend0 (vec3d (0, 0.8, 0), vec3d (0.8, 0, 0), valley, 0.1f);
187	h = blend0 (base_height + continent * 300, base_height + mountain * xy_gradient * 400, valley, 0.1f);
188
189	if (river1 < 0.01f)
190	{
191	// main rivers - they cut deeply into the mountains (base_height * 0.9f)
192	t = T_RIVER;
193	c = vec3d (0.2, 0.2, 1);
194	h0 = river_height;
195	min_it (h, river_height + lerp<float> (river1, 0.f, 0.01f, -20, -1));
196	}
197
198	if (river2 > 0)
199	{
200	t = T_RIVER;
201	c = vec3d (0.2, 0.2, 1);
202	h0 = river_height;
203	min_it (h, river_height + lerp<float> (river1, 0.f, 0.01f, -5, -1));
204	}
205
206	if (continent < 0)
207	{
208	t = T_OCEAN;
209	min_it (h, min (continent * 200, -1));
210	c = vec3d (0, 0, 1);
211	}
212
213	// now we have the base height, and base terrain
214
215	#if FANCY_GRAPHICS
216	z = h; // show the surface, not the given z layer
217	#endif
218
219	max_it (h0, h);
220
221	// everything below the surface is underground, or a variant
222	if (z < h)
223	t = T_UNDERGROUND;
224
225	// put acquifers a bit below the surface, to reduce them leaking out (will still happen)
226	if (z < h - 3)
227	{
228	static frac3d acquifer_gen (4);
229	float acquifer = acquifer_gen.ridgedmultifractal (vec3d (x * 0.001, y * 0.001, z * 0.01), 1.003, 2);
230
231	if (acquifer > 0.48)
232	{
233	t = T_ACQUIFER;
234	c = vec3d (1,1,1);
235	}
236	}
237
238	// TODO: caves
239	// TODO: chees areas
240	// TODO: minerals
241	// TODO: monsters
242
243	#if FANCY_GRAPHICS
244	float v = clamp (lerp<float> (h, deep_sea_z, 800, 0.f, 1.f), 0.f, 1.f);
245	c *= v;
246
247	putc (clamp<int> (255 * c[0], 0, 255), stdout);
248	putc (clamp<int> (255 * c[1], 0, 255), stdout);
249	putc (clamp<int> (255 * c[2], 0, 255), stdout);
250	#else
251	shstr arch_floor = shstr ("quad_open_space");
252	shstr arch_wall;
253
254	// TODO: this is shit - we should never generatea water surface, but only
255	// water above the surface
256	switch (t)
257	{
258	case T_OCEAN:
259	if (z < h0)
260	arch_wall = shstr ("quad_water_wall");
261	else if (z == h0)
262	arch_floor = shstr ("quad_ocean_floor");
263	break;
264
265	case T_RIVER:
266	if (z < h0)
267	arch_wall = shstr ("quad_water_wall");
268	else if (z == h0)
269	arch_floor = shstr ("quad_water_floor");
270	break;
271
272	case T_VALLEY:
273	if (z == h)
274	arch_floor = shstr ("quad_dirt_floor");
275	break;
276
277	case T_MOUNTAIN:
278	if (z == h)
279	arch_floor = shstr ("quad_stone_floor");
280	break;
281
282	case T_UNDERGROUND:
283	// todo, use a fractal
284	if (z < h - 10)
285	{
286	arch_floor = shstr ("quad_dirt_floor");
287	arch_wall = shstr ("quad_dirt_wall");
288	}
289	else
290	{
291	arch_floor = shstr ("quad_stone_floor");
292	arch_wall = shstr ("quad_stone_wall");
293	}
294	break;
295
296	case T_ACQUIFER:
297	arch_wall = shstr ("quad_water_wall");
298	break;
299
300	default:
301	abort ();
302	}
303
304	if (arch_floor)
305	m->insert (archetype::get (arch_floor), mx, my);
306
307	if (arch_wall)
308	m->insert (archetype::get (arch_wall ), mx, my);
309	#endif
310	}
311
312	void
313	gen_quadmap (maptile *m, int x, int y, int z)
314	{
315	assert (m->width == 50);
316	assert (m->height == 50);
317
318	for (int mx = 0; mx < 50; ++mx)
319	for (int my = 0; my < 50; ++my)
320	gen_quadspace (m, mx, my, x + mx, y + my, z);
321	}
322
323	/////////////////////////////////////////////////////////////////////////////
324
325	void noise_test ();
326	void noise_test ()
327	{
328	#if 1
329	int Nw = 700;
330
331	printf ("P6 %d %d 255\n", Nw * 3, Nw * 2);
332	// pmake&&server/deliantra-server >x&&convert -depth 8 -size 512xx512 gray:x x.ppm&& cv x.ppm
333	for (int y = 0; y < Nw; ++y)
334	{
335	if (!(y&63))fprintf (stderr, "y %d\n", y * 50 / Nw);//D
336
337	for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x * 25000 / Nw, y * 25000 / Nw, 0);
338
339	for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 400, y, 0);
340	for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 22000, y + 2000, 0);
341	}
342	for (int y = 0; y < Nw; ++y)
343	{
344	if (!(y&63))fprintf (stderr, "y %d\n", y * 50 / Nw+50);//D
345
346	for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 1000, y + 22000, 0);
347	for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 12500, y + 12500, 0);
348	for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 22000, y + 22500, 0);
349	}
350
351	//putc (127 * gen.noise (vec2d (x * 0.01, y * 0.01)) + 128, stdout);
352	//putc (256 * gen.terrain2 (x * 0.004, y * 0.004, 8), stdout);
353	//putc (256 * gen.fBm (vec2d(x * 0.01, y * 0.01), 16), stdout);
354	//putc (256 * gen.turbulence (vec2d (x * 0.004 - 1, y * 0.004 - 1), 10), stdout);
355	//putc (256 * gen.heterofractal (vec2d (x * 0.008, y * 0.008), 8, 0.9), stdout);
356	//putc (256 * gen.hybridfractal (vec2d (x * 0.01, y * 0.01), 8, -.4, -4), stdout);
357	//putc (256 * gen.fBm (vec2d (x * 0.002, y * 0.002), 2), stdout);
358	//putc (127.49 * gen.billowfractal (vec2d (x * 0.01, y * 0.01), 9) + 128, stdout);
359	#elif 1
360	int N = 25000;
361
362	printf ("P6 %d %d 255\n", N, N);
363	for (int y = 0; y < N; ++y)
364	{
365	if (!(y&63))fprintf (stderr, "y %d\n", y);//D
366
367	for (int x = 0; x < N; ++x) gen_quadspace (0, 0, 0, x, y, 0);
368	}
369	#else
370	int N = 200;
371
372	//printf ("P6 %d %d 255\n", N, N);
373	// pmake&&server/deliantra-server >x&&convert -depth 8 -size 512xx512 gray:x x.ppm&& cv x.ppm
374	for (int z = 0; z < N; ++z)
375	{
376	if (!(z&7))fprintf (stderr, "z %d\n", z);//D
377	for (int y = 0; y < N; ++y)
378	for (int x = 0; x < N; ++x)
379	{
380	#if 0
381	float v = gen3.ridgedmultifractal (vec3d (x * 0.001 + 0.2, y * 0.001 + 0.2, z * 0.01 + 0.2), 1.03, 2) * 2;
382
383	if (z < 64)
384	v = v * (z * z) / (64 * 64);
385
386	if (v <= 0.9)
387	continue;
388	#endif
389	static frac3d gen3 (10);
390	//float v = gen3.turbulence (vec3d (x * 0.01, y * 0.01, z * 0.01));
391	float v = gen3.ridgedmultifractal (vec3d (x * 0.001, y * 0.001, z * 0.001), 1.003, 2);
392
393	if (v <= 0.48) continue;
394
395	float r[4];
396	int i[4];
397
398	r[0] = x;
399	r[1] = y;
400	r[2] = z;
401	r[3] = v;
402
403	memcpy (i, r, 16);
404
405	i[0] = htonl (i[0]);
406	i[1] = htonl (i[1]);
407	i[2] = htonl (i[2]);
408	i[3] = htonl (i[3]);
409
410	fwrite (i, 4*4, 1, stdout);
411	}
412	}
413	#endif
414
415	exit (0);
416	}