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"

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

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))
              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!", 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."
      );
    }
}

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

#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_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;

  switch (t)
    {
      case T_OCEAN:
        if (z < h0)
          arch_wall  = shstr ("quad_water_wall");
        else
          arch_floor  = shstr ("quad_ocean_floor");
        break;

      case T_RIVER:
        if (z < h0)
          arch_wall  = shstr ("quad_water_wall");
        else
          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:	1.6
Committed:	Mon May 2 16:57:28 2011 UTC (13 years ago) by root
Content type:	text/plain
Branch:	MAIN
Changes since 1.5:	+0 -1 lines
Log Message:	do not pull an elmex
#	User	Rev	Content
1	root	1.1	/*
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	root	1.5	/////////////////////////////////////////////////////////////////////////////
28
29			void
30			move_into_wall (object ob, object wall)
31			{
32			bool visible = !wall->invisible && !ob->flag [FLAG_BLIND];
33
34			if (wall->flag [FLAG_IS_QUAD] && visible)
35			{
36			maptile *m = wall->map;
37
38			if (m->tile_path [TILE_UP])
39			if (maptile *up = m->tile_available (TILE_UP))
40			{
41			if (ob->blocked (up, ob->x, ob->y))
42			ob->failmsg (format ("Ouch, you hit your head while climbing the %s! H<Didn't you see the ceiling?>", query_name (wall)));
43			//TODO: reduce health
44			else if (ob->blocked (up, wall->x, wall->y))
45			ob->failmsg (format ("You try to climb up, but the %s is too high for you!", query_name (wall)));
46			//TODO: reduce health
47			else
48			{
49			ob->statusmsg (format ("You successfully climb up the %s.", query_name (wall)));
50			// here we assume that ob is a player...
51			ob->enter_map (up, wall->x, wall->y);
52			}
53			}
54			else
55			ob->failmsg (format ("You try to climb the %s, but you fall down! H<Try again.>", query_name (wall)));
56			else
57			ob->failmsg (format ("You fail to climb up the %s! H<You cannot climb up here.>", query_name (wall)));
58
59
60			return;
61			}
62
63			if (ob->contr->ns->bumpmsg)
64			{
65			ob->play_sound (sound_find ("bump_wall"));
66
67			ob->statusmsg (visible
68			? format ("You bump into the %s.", query_name (wall))
69			: "You bump into something."
70			);
71			}
72			}
73
74			/////////////////////////////////////////////////////////////////////////////
75
76	root	1.2	#define FANCY_GRAPHICS 0
77	root	1.1
78			static void
79	root	1.2	gen_quadspace (maptile *m, int mx, int my, int x, int y, int z)
80	root	1.1	{
81			vec2d P = vec2d (x, y);
82
83			const int deep_sea_z = -200;
84
85			static frac2d gen(13);
86
87			static frac2d vec_gen1 (6, 2, 0.5, 1);
88			static frac2d vec_gen2 (6, 2, 0.5, 2);
89
90			const float continent_scale = 0.00008;
91
92			vec2d perturb_pos = pow (P, 1.4) * 1e-5;
93
94			vec2d perturb (
95			vec_gen1.fBm (perturb_pos),
96			vec_gen2.fBm (perturb_pos)
97			);
98
99			float perturb_perturb = 1 - (P[1] - P[0]) * (1. / 25000 / 2);
100			perturb_perturb = perturb_perturb * perturb_perturb * 0.4;
101			perturb *= perturb_perturb;
102
103			vec2d P_continent = P * continent_scale + perturb;
104
105			static frac2d continent_gen (13, 2.13, 0.5);
106			float continent = continent_gen.fBm (P_continent) + 0.05f;
107
108			float x_gradient = P[0] * (1. / 25000);
109			float y_gradient = P[1] * (1. / 25000);
110			float xy_gradient = (P[0] + P[1]) * (0.5 / 25000);
111
112			const float N = (25000 - 1) * continent_scale;
113
114			// we clip a large border on the perturbed shape, to get irregular coastline
115			// and then clip a smaller border around the real shape
116			continent = border_blend (-1.f, continent, P_continent , N, 400 * continent_scale);
117			continent = border_blend (-1.f, continent, P * continent_scale + perturb * 0.1, N, 100 * continent_scale);
118
119			enum {
120			T_NONE,
121			T_OCEAN,
122			T_RIVER,
123			T_VALLEY,
124			T_MOUNTAIN,
125			T_UNDERGROUND,
126			T_ACQUIFER,
127			} t = T_NONE;
128
129			vec3d c;
130	root	1.2	int h0 = 0; // "water level"
131	root	1.1	int h = 1000000; // height form heightmap
132
133			// the continent increases in height from 0 to ~700 levels in the absence of anything else
134			// thats about one step every 7 maps.
135			int base_height = blend (0, 300, xy_gradient, 0.2f, 0.9f);
136			int river_height = base_height * 9 / 10;
137
138			// add this to rivers to "dry them out"
139			float dry_out = max (0.f, lerp (xy_gradient, 0.7f, 1.f, 0.f, 0.3f));
140
141			static frac2d river_gen (2);
142			float river1 = abs (river_gen.fBm (P * 0.001 + perturb * 4)) + dry_out;
143			float river2 = river_gen.ridgedmultifractal (P * 0.04, 0.8, 10) - y_gradient * 0.2 - 0.16 - dry_out;
144
145			float valley = river1 - 0.2f;
146
147			static frac2d mountain_gen (8, 2.14, 0.5);
148			float mountain = mountain_gen.ridgedmultifractal (P * 0.004);
149
150			//TODO: mountains should not lower the height, should they?
151			t = valley < 0 ? T_VALLEY : T_MOUNTAIN;
152			c = blend0 (vec3d (0, 0.8, 0), vec3d (0.8, 0, 0), valley, 0.1f);
153			h = blend0 (base_height + continent * 300, base_height + mountain * xy_gradient * 400, valley, 0.1f);
154
155			if (river1 < 0.01f)
156			{
157			// main rivers - they cut deeply into the mountains (base_height * 0.9f)
158			t = T_RIVER;
159			c = vec3d (0.2, 0.2, 1);
160	root	1.2	h0 = river_height;
161	root	1.1	min_it (h, river_height + lerp<float> (river1, 0.f, 0.01f, -20, -1));
162			}
163
164			if (river2 > 0)
165			{
166			t = T_RIVER;
167			c = vec3d (0.2, 0.2, 1);
168	root	1.2	h0 = river_height;
169	root	1.1	min_it (h, river_height + lerp<float> (river1, 0.f, 0.01f, -5, -1));
170			}
171
172			if (continent < 0)
173			{
174			t = T_OCEAN;
175			min_it (h, min (continent * 200, -1));
176			c = vec3d (0, 0, 1);
177			}
178
179			// now we have the base height, and base terrain
180
181			#if FANCY_GRAPHICS
182			z = h; // show the surface, not the given z layer
183			#endif
184
185	root	1.2	max_it (h0, h);
186
187	root	1.1	// everything below the surface is underground, or a variant
188			if (z < h)
189			{
190			t = T_UNDERGROUND;
191			}
192
193			// put acquifers a bit below the surface, to reduce them leaking out (will still happen)
194			if (z < h - 3)
195			{
196			static frac3d acquifer_gen (4);
197			float acquifer = acquifer_gen.ridgedmultifractal (vec3d (x * 0.001, y * 0.001, z * 0.01), 1.003, 2);
198
199			if (acquifer > 0.48)
200			{
201			t = T_ACQUIFER;
202			c = vec3d (1,1,1);
203			}
204			}
205
206			// TODO: caves
207			// TODO: chees areas
208			// TODO: minerals
209			// TODO: monsters
210
211			#if FANCY_GRAPHICS
212			float v = clamp (lerp<float> (h, deep_sea_z, 800, 0.f, 1.f), 0.f, 1.f);
213			c *= v;
214
215			putc (clamp<int> (255 * c[0], 0, 255), stdout);
216			putc (clamp<int> (255 * c[1], 0, 255), stdout);
217			putc (clamp<int> (255 * c[2], 0, 255), stdout);
218	root	1.2	#else
219			shstr arch_floor = shstr ("quad_open_space");
220			shstr arch_wall;
221
222			switch (t)
223			{
224			case T_OCEAN:
225	root	1.4	if (z < h0)
226			arch_wall = shstr ("quad_water_wall");
227			else
228			arch_floor = shstr ("quad_ocean_floor");
229			break;
230
231	root	1.2	case T_RIVER:
232	root	1.3	if (z < h0)
233	root	1.2	arch_wall = shstr ("quad_water_wall");
234	root	1.4	else
235			arch_floor = shstr ("quad_water_floor");
236	root	1.2	break;
237
238			case T_VALLEY:
239			if (z == h)
240	root	1.3	arch_floor = shstr ("quad_dirt_floor");
241	root	1.2	break;
242
243			case T_MOUNTAIN:
244			if (z == h)
245	root	1.3	arch_floor = shstr ("quad_stone_floor");
246	root	1.2	break;
247
248			case T_UNDERGROUND:
249			// todo, use a fractal
250			if (z < h - 10)
251			{
252			arch_floor = shstr ("quad_dirt_floor");
253			arch_wall = shstr ("quad_dirt_wall");
254			}
255			else
256			{
257			arch_floor = shstr ("quad_stone_floor");
258			arch_wall = shstr ("quad_stone_wall");
259			}
260			break;
261
262			case T_ACQUIFER:
263			arch_wall = shstr ("quad_water_wall");
264			break;
265
266			default:
267			abort ();
268			}
269
270			if (arch_floor)
271			m->insert (archetype::get (arch_floor), mx, my);
272
273			if (arch_wall)
274			m->insert (archetype::get (arch_wall ), mx, my);
275	root	1.1	#endif
276			}
277
278	root	1.2	void
279			gen_quadmap (maptile *m, int x, int y, int z)
280			{
281			assert (m->width == 50);
282			assert (m->height == 50);
283
284			for (int mx = 0; mx < 50; ++mx)
285			for (int my = 0; my < 50; ++my)
286			gen_quadspace (m, mx, my, x + mx, y + my, z);
287			}
288
289	root	1.5	/////////////////////////////////////////////////////////////////////////////
290
291	root	1.1	void noise_test ();
292			void noise_test ()
293			{
294	root	1.2	#if 1
295	root	1.1	int Nw = 700;
296
297			printf ("P6 %d %d 255\n", Nw * 3, Nw * 2);
298			// pmake&&server/deliantra-server >x&&convert -depth 8 -size 512xx512 gray:x x.ppm&& cv x.ppm
299			for (int y = 0; y < Nw; ++y)
300			{
301			if (!(y&63))fprintf (stderr, "y %d\n", y * 50 / Nw);//D
302
303	root	1.2	for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x * 25000 / Nw, y * 25000 / Nw, 0);
304	root	1.1
305	root	1.2	for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 400, y, 0);
306			for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 22000, y + 2000, 0);
307	root	1.1	}
308			for (int y = 0; y < Nw; ++y)
309			{
310			if (!(y&63))fprintf (stderr, "y %d\n", y * 50 / Nw+50);//D
311
312	root	1.2	for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 1000, y + 22000, 0);
313			for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 12500, y + 12500, 0);
314			for (int x = 0; x < Nw; ++x) gen_quadspace (0, 0, 0, x + 22000, y + 22500, 0);
315	root	1.1	}
316
317			//putc (127 * gen.noise (vec2d (x * 0.01, y * 0.01)) + 128, stdout);
318			//putc (256 * gen.terrain2 (x * 0.004, y * 0.004, 8), stdout);
319			//putc (256 * gen.fBm (vec2d(x * 0.01, y * 0.01), 16), stdout);
320			//putc (256 * gen.turbulence (vec2d (x * 0.004 - 1, y * 0.004 - 1), 10), stdout);
321			//putc (256 * gen.heterofractal (vec2d (x * 0.008, y * 0.008), 8, 0.9), stdout);
322			//putc (256 * gen.hybridfractal (vec2d (x * 0.01, y * 0.01), 8, -.4, -4), stdout);
323			//putc (256 * gen.fBm (vec2d (x * 0.002, y * 0.002), 2), stdout);
324			//putc (127.49 * gen.billowfractal (vec2d (x * 0.01, y * 0.01), 9) + 128, stdout);
325			#elif 1
326			int N = 25000;
327
328			printf ("P6 %d %d 255\n", N, N);
329			for (int y = 0; y < N; ++y)
330			{
331			if (!(y&63))fprintf (stderr, "y %d\n", y);//D
332
333	root	1.2	for (int x = 0; x < N; ++x) gen_quadspace (0, 0, 0, x, y, 0);
334	root	1.1	}
335			#else
336			int N = 200;
337
338			//printf ("P6 %d %d 255\n", N, N);
339			// pmake&&server/deliantra-server >x&&convert -depth 8 -size 512xx512 gray:x x.ppm&& cv x.ppm
340			for (int z = 0; z < N; ++z)
341			{
342			if (!(z&7))fprintf (stderr, "z %d\n", z);//D
343			for (int y = 0; y < N; ++y)
344			for (int x = 0; x < N; ++x)
345			{
346			#if 0
347			float v = gen3.ridgedmultifractal (vec3d (x * 0.001 + 0.2, y * 0.001 + 0.2, z * 0.01 + 0.2), 1.03, 2) * 2;
348
349			if (z < 64)
350			v = v * (z * z) / (64 * 64);
351
352			if (v <= 0.9)
353			continue;
354			#endif
355			static frac3d gen3 (10);
356			//float v = gen3.turbulence (vec3d (x * 0.01, y * 0.01, z * 0.01));
357			float v = gen3.ridgedmultifractal (vec3d (x * 0.001, y * 0.001, z * 0.001), 1.003, 2);
358
359			if (v <= 0.48) continue;
360
361			float r[4];
362			int i[4];
363
364			r[0] = x;
365			r[1] = y;
366			r[2] = z;
367			r[3] = v;
368
369			memcpy (i, r, 16);
370
371			i[0] = htonl (i[0]);
372			i[1] = htonl (i[1]);
373			i[2] = htonl (i[2]);
374			i[3] = htonl (i[3]);
375
376			fwrite (i, 4*4, 1, stdout);
377			}
378			}
379			#endif
380
381			exit (0);
382			}