{
// The base ground level
double base = (double)WATER_LEVEL - (double)AVERAGE_MUD_AMOUNT
- + 25. * noise2d_perlin(
+ + 20. * noise2d_perlin(
0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
(seed>>32)+654879876, 6, 0.6);
base = base2;*/
#if 1
// Higher ground level
- double higher = (double)WATER_LEVEL + 25. + 45. * noise2d_perlin(
+ double higher = (double)WATER_LEVEL + 25. + 35. * noise2d_perlin(
0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
seed+85039, 5, 0.69);
//higher = 30; // For debugging
/*
Generate general ground level to full area
*/
-
{
// 22ms @cs=8
- //TimeTaker timer1("ground level");
+ TimeTaker timer1("Generating ground level");
+
+#if 0
+ NoiseBuffer noisebuf1;
+ NoiseBuffer noisebuf2;
+ {
+ v3f minpos_f(
+ data->sectorpos_bigbase.X*MAP_BLOCKSIZE,
+ y_nodes_min,
+ data->sectorpos_bigbase.Y*MAP_BLOCKSIZE
+ );
+ v3f maxpos_f = minpos_f + v3f(
+ data->sectorpos_bigbase_size*MAP_BLOCKSIZE,
+ y_nodes_max-y_nodes_min,
+ data->sectorpos_bigbase_size*MAP_BLOCKSIZE
+ );
+ v3f samplelength_f = v3f(4.0, 4.0, 4.0);
+
+ TimeTaker timer("noisebuf.create");
+
+ /*noisebuf.create(data->seed+25104, 6, 0.60, 200.0,
+ minpos_f.X, minpos_f.Y, minpos_f.Z,
+ maxpos_f.X, maxpos_f.Y, maxpos_f.Z,
+ samplelength_f.X, samplelength_f.Y, samplelength_f.Z);*/
+ noisebuf1.create(data->seed+25104, 3, 0.60, 25.0,
+ minpos_f.X, minpos_f.Y, minpos_f.Z,
+ maxpos_f.X, maxpos_f.Y, maxpos_f.Z,
+ samplelength_f.X, samplelength_f.Y, samplelength_f.Z);
+ noisebuf2.create(data->seed+25105, 4, 0.50, 200.0,
+ minpos_f.X, minpos_f.Y, minpos_f.Z,
+ maxpos_f.X, maxpos_f.Y, maxpos_f.Z,
+ samplelength_f.X, samplelength_f.Y, samplelength_f.Z);
+ }
+ for(s16 x=0; x<data->sectorpos_bigbase_size*MAP_BLOCKSIZE; x++)
+ for(s16 z=0; z<data->sectorpos_bigbase_size*MAP_BLOCKSIZE; z++)
+ {
+ // Node position
+ v2s16 p2d = data->sectorpos_bigbase*MAP_BLOCKSIZE + v2s16(x,z);
+
+ // Ground height at this point
+ float surface_y_f = 0.0;
+
+ // Use perlin noise for ground height
+ surface_y_f = base_rock_level_2d(data->seed, p2d);
+ //surface_y_f = base_rock_level_2d(data->seed, p2d);
+
+ // Convert to integer
+ s16 surface_y = (s16)surface_y_f;
+
+ // Log it
+ if(surface_y > stone_surface_max_y)
+ stone_surface_max_y = surface_y;
+
+ /*
+ Fill ground with stone
+ */
+ {
+ // Use fast index incrementing
+ v3s16 em = data->vmanip.m_area.getExtent();
+ u32 i = data->vmanip.m_area.index(v3s16(p2d.X, y_nodes_min, p2d.Y));
+ for(s16 y=y_nodes_min; y<=y_nodes_max; y++)
+ {
+ // Skip if already generated.
+ // This is done here because there might be a cave at
+ // any point in ground, which could look like it
+ // wasn't generated.
+ if(data->vmanip.m_data[i].d != CONTENT_AIR)
+ break;
+
+ /*s16 noiseval = 50.0 * noise3d_perlin(
+ 0.5+(float)p2d.X/100.0,
+ 0.5+(float)y/100.0,
+ 0.5+(float)p2d.Y/100.0,
+ data->seed+123, 5, 0.5);*/
+ //double noiseval = 64.0 * noisebuf1.get(p2d.X, y, p2d.Y);
+ double noiseval = 30.0 * noisebuf1.get(p2d.X, y, p2d.Y);
+ noiseval *= MYMAX(0, -0.2 + noisebuf2.get(p2d.X, y, p2d.Y));
+
+ if(y < surface_y + noiseval)
+ //if(noiseval > 0)
+ //if(noiseval > y)
+ data->vmanip.m_data[i].d = CONTENT_STONE;
+
+ data->vmanip.m_area.add_y(em, i, 1);
+ }
+ }
+ }
+#endif
+
+#if 1
for(s16 x=0; x<data->sectorpos_bigbase_size*MAP_BLOCKSIZE; x++)
for(s16 z=0; z<data->sectorpos_bigbase_size*MAP_BLOCKSIZE; z++)
{
}
}
}
+#endif
}//timer1
BEGINNING OF AGING LOOP
******************************/
+#if 1
{
// 24ms @cs=8
//TimeTaker timer1("caves");
}
}//timer1
+#endif
+
+#if 1
{
// 46ms @cs=8
//TimeTaker timer1("ore veins");
}
}//timer1
+#endif
+
+#if 1
{
// 15ms @cs=8
- //TimeTaker timer1("add mud");
+ TimeTaker timer1("add mud");
/*
Add mud to the central chunk
v2s16 p2d = data->sectorpos_base*MAP_BLOCKSIZE + v2s16(x,z);
// Randomize mud amount
- s16 mud_add_amount = (s16)(2.5 + 2.0 * noise2d_perlin(
+ s16 mud_add_amount = (s16)(2.5 + 1.5 * noise2d_perlin(
0.5+(float)p2d.X/200, 0.5+(float)p2d.Y/200,
data->seed+1, 3, 0.55));
}
}//timer1
+#endif
+
+#if 1
{
// 340ms @cs=8
TimeTaker timer1("flow mud");
}
}//timer1
+#endif
+
+#if 1
{
// 50ms @cs=8
- //TimeTaker timer1("add water");
+ TimeTaker timer1("add water");
/*
Add water to the central chunk (and a bit more)
}
}//timer1
+#endif
} // Aging loop
/***********************
END OF AGING LOOP
************************/
+#if 1
{
//TimeTaker timer1("convert mud to sand");
}
}//timer1
+#endif
+
+#if 1
{
// 1ms @cs=8
//TimeTaker timer1("generate trees");
}
}//timer1
+#endif
+#if 1
{
// 19ms @cs=8
//TimeTaker timer1("grow grass");
}
}//timer1
+#endif
/*
Initial lighting (sunlight)
// 750ms @cs=8, can't optimize more
TimeTaker timer1("initial lighting");
+ // NOTE: This is no used... umm... for some reason!
#if 0
/*
Go through the edges and add all nodes that have light to light_sources
block->unDummify();
}
+#if 1
+ /*
+ Generate a completely empty block
+ */
+ for(s16 z0=0; z0<MAP_BLOCKSIZE; z0++)
+ for(s16 x0=0; x0<MAP_BLOCKSIZE; x0++)
+ {
+ for(s16 y0=0; y0<MAP_BLOCKSIZE; y0++)
+ {
+ MapNode n;
+ n.d = CONTENT_AIR;
+ block->setNode(v3s16(x0,y0,z0), n);
+ }
+ }
+#else
+ /*
+ Generate a proper block
+ */
+
u8 water_material = CONTENT_WATERSOURCE;
s32 lowest_ground_y = 32767;
}
}
}
+
+#endif // end of proper block generation
/*
Add block to sector.
#include <math.h>
#include "noise.h"
#include <iostream>
+#include "debug.h"
#define NOISE_MAGIC_X 1619
#define NOISE_MAGIC_Y 31337
return a;
}
+/*
+ NoiseBuffer
+*/
+
+NoiseBuffer::NoiseBuffer():
+ m_data(NULL)
+{
+}
+
+NoiseBuffer::~NoiseBuffer()
+{
+ clear();
+}
+
+void NoiseBuffer::clear()
+{
+ if(m_data)
+ delete[] m_data;
+ m_data = NULL;
+ m_size_x = 0;
+ m_size_y = 0;
+ m_size_z = 0;
+}
+
+void NoiseBuffer::create(int seed, int octaves, double persistence,
+ double pos_scale,
+ double first_x, double first_y, double first_z,
+ double last_x, double last_y, double last_z,
+ double samplelength_x, double samplelength_y, double samplelength_z)
+{
+ clear();
+
+ m_start_x = first_x - samplelength_x;
+ m_start_y = first_y - samplelength_y;
+ m_start_z = first_z - samplelength_z;
+ m_samplelength_x = samplelength_x;
+ m_samplelength_y = samplelength_y;
+ m_samplelength_z = samplelength_z;
+
+ m_size_x = (last_x - m_start_x)/samplelength_x + 2;
+ m_size_y = (last_y - m_start_y)/samplelength_y + 2;
+ m_size_z = (last_z - m_start_z)/samplelength_z + 2;
+
+ /*dstream<<"m_size_x="<<m_size_x<<", m_size_y="<<m_size_y
+ <<", m_size_z="<<m_size_z<<std::endl;*/
+
+ m_data = new double[m_size_x*m_size_y*m_size_z];
+
+ for(int x=0; x<m_size_x; x++)
+ for(int y=0; y<m_size_y; y++)
+ for(int z=0; z<m_size_z; z++)
+ {
+ double xd = (m_start_x + (double)x*m_samplelength_x)/pos_scale;
+ double yd = (m_start_y + (double)y*m_samplelength_y)/pos_scale;
+ double zd = (m_start_z + (double)z*m_samplelength_z)/pos_scale;
+ intSet(x,y,z, noise3d_perlin(xd,yd,zd,seed,octaves,persistence));
+ }
+}
+
+void NoiseBuffer::intSet(int x, int y, int z, double d)
+{
+ int i = m_size_x*m_size_y*z + m_size_x*y + x;
+ assert(i >= 0);
+ assert(i < m_size_x*m_size_y*m_size_z);
+ m_data[i] = d;
+}
+
+double NoiseBuffer::intGet(int x, int y, int z)
+{
+ int i = m_size_x*m_size_y*z + m_size_x*y + x;
+ assert(i >= 0);
+ assert(i < m_size_x*m_size_y*m_size_z);
+ return m_data[i];
+}
+
+double NoiseBuffer::get(double x, double y, double z)
+{
+ x -= m_start_x;
+ y -= m_start_y;
+ z -= m_start_z;
+ x /= m_samplelength_x;
+ y /= m_samplelength_y;
+ z /= m_samplelength_z;
+ // Calculate the integer coordinates
+ int x0 = (x > 0.0 ? (int)x : (int)x - 1);
+ int y0 = (y > 0.0 ? (int)y : (int)y - 1);
+ int z0 = (z > 0.0 ? (int)z : (int)z - 1);
+ // Calculate the remaining part of the coordinates
+ double xl = x - (double)x0;
+ double yl = y - (double)y0;
+ double zl = z - (double)z0;
+ // Get values for corners of cube
+ double v000 = intGet(x0, y0, z0);
+ double v100 = intGet(x0+1, y0, z0);
+ double v010 = intGet(x0, y0+1, z0);
+ double v110 = intGet(x0+1, y0+1, z0);
+ double v001 = intGet(x0, y0, z0+1);
+ double v101 = intGet(x0+1, y0, z0+1);
+ double v011 = intGet(x0, y0+1, z0+1);
+ double v111 = intGet(x0+1, y0+1, z0+1);
+ // Interpolate
+ return triLinearInterpolation(v000,v100,v010,v110,v001,v101,v011,v111,xl,yl,zl);
+}
+
double noise3d_perlin_abs(double x, double y, double z, int seed,
int octaves, double persistence);
+class NoiseBuffer
+{
+public:
+ NoiseBuffer();
+ ~NoiseBuffer();
+
+ void clear();
+ void create(int seed, int octaves, double persistence,
+ double pos_scale,
+ double first_x, double first_y, double first_z,
+ double last_x, double last_y, double last_z,
+ double samplelength_x, double samplelength_y, double samplelength_z);
+
+ void intSet(int x, int y, int z, double d);
+ double intGet(int x, int y, int z);
+ double get(double x, double y, double z);
+
+private:
+ double *m_data;
+ double m_start_x, m_start_y, m_start_z;
+ double m_samplelength_x, m_samplelength_y, m_samplelength_z;
+ int m_size_x, m_size_y, m_size_z;
+};
+
#endif
projects / oweals / minetest.git / commitdiff