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mapgen tweaking
This commit is contained in:
Perttu Ahola
parent
f923c1fb66
commit
9a22d02903
4 changed files with 181 additions and 100 deletions
224
src/map.cpp
224
src/map.cpp
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@ -2027,7 +2027,7 @@ double base_rock_level_2d(u64 seed, v2f p)
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(seed>>32)+78593, 5, 0.55), 0.15);
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h += 30 * tm2;*/
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#if 1
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#if 0
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{
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// Large mountains
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double m3 = 100.0 - 600.0 * noise2d_perlin_abs(
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@ -2038,24 +2038,13 @@ double base_rock_level_2d(u64 seed, v2f p)
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}
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#endif
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#if 1
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{
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// Pretty neat looking mountains
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double m4 = 100.0 - 400.0 * noise2d_perlin_abs(
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0.324+(float)p.X/2000., 0.423+(float)p.Y/2000.,
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(seed>>32)+65012102, 8, 0.6);
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if(m4 > h)
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h = m4;
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}
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#endif
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#if 0
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{
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// More neat looking mountain ranges
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// More mountain ranges
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double d = 100;
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double a1 = d*2 - d*5 * noise2d_perlin_abs(
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0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
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seed+850342, 6, 0.55);
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double a1 = d*2.0 - d*7 * noise2d_perlin_abs(
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0.5+(float)p.X/1000., 0.5+(float)p.Y/1000.,
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seed+850342, 7, 0.55);
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/*if(a1 > d)
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a1 = d + sqrt(a1-d);*/
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a1 = (1.0 - exp(-a1/d))*d;
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@ -2066,11 +2055,28 @@ double base_rock_level_2d(u64 seed, v2f p)
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}
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#endif
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#if 1
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#if 0
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{
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// More mountain ranges
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double d = 60;
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double a1 = d*2.0 - d*7 * noise2d_perlin_abs(
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0.5+(float)p.X/1000., 0.5+(float)p.Y/1000.,
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seed+850342, 7, 0.55);
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/*if(a1 > d)
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a1 = d + sqrt(a1-d);*/
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a1 = (1.0 - exp(-a1/d))*d;
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/*if(a1 > h)
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h = a1;*/
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if(a1 > 0)
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h += a1;
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}
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#endif
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#if 0
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{
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// Very steep mountain ranges
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double d = 150;
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double a1 = d*2 - d*7.5 * noise2d_perlin_abs(
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double d = 120;
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double a1 = d*2 - d*6.5 * noise2d_perlin_abs(
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0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
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seed+850342, 6, 0.6);
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/*if(a1 > d)
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@ -2088,6 +2094,22 @@ double base_rock_level_2d(u64 seed, v2f p)
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h = m4;*/
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}
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#endif
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/*
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The sutff before this comment is usually not used.
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The stuff after this comment is usually used.
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*/
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#if 1
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{
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// Pretty neat looking mountains
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double m4 = 100.0 - 400.0 * noise2d_perlin_abs(
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0.324+(float)p.X/2000., 0.423+(float)p.Y/2000.,
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(seed>>32)+65012102, 7, 0.6);
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if(m4 > h)
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h = m4;
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}
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#endif
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#if 1
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// Some kind of hill chains or something
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@ -2106,17 +2128,22 @@ double base_rock_level_2d(u64 seed, v2f p)
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#endif
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#if 1
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double base = -2. + 25. * noise2d_perlin(
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0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
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double base = -2. + 30. * noise2d_perlin(
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0.5+(float)p.X/1000., 0.5+(float)p.Y/1000.,
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(seed>>32)+653876, 7, 0.6);
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#else
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double base = 0;
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#endif
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#if 1
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/*
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Combined with turbulence, this thing here is able to make very
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awesome terrain, albeit rarely.
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*/
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double higher = 40. * noise2d_perlin(
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0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
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seed+39292, 7, 0.55);
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seed+39292, 6, 0.50);
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/*double higher = 50. * noise2d_perlin_abs(
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0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
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seed+85039, 5, 0.63);*/
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@ -2127,7 +2154,7 @@ double base_rock_level_2d(u64 seed, v2f p)
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// Steepness factor of cliffs
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double b = 1.0 + 1.0 * noise2d_perlin(
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0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
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seed-932, 7, 0.7);
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seed-932, 6, 0.7);
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b = rangelim(b, 0.0, 1000.0);
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#if 1
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b = pow(b, 5);
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@ -2137,11 +2164,11 @@ double base_rock_level_2d(u64 seed, v2f p)
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//double b = 20;
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// Offset to more low
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//double a_off = -0.30;
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double a_off = -0.00;
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double a_off = -0.20;
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// High/low selector
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double a = (double)0.5 + b * (a_off + noise2d_perlin(
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0.5+(float)p.X/250., 0.5+(float)p.Y/250.,
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seed-359, 6, 0.70));
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0.5+(float)p.X/500., 0.5+(float)p.Y/500.,
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seed-359, 7, 0.70));
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#endif
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#if 0
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/*b = pow(b, 5);
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@ -2190,14 +2217,47 @@ v2f base_ground_turbulence(u64 seed, v3f p)
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#if 1
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double f = 20;
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double vv = 1.0 - 1.0 * noise3d_perlin_abs(
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0.5+p.X/500,
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0.5+p.Y/500,
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0.5+p.Z/500,
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#if 1
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// Cut off at a minimum height
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{
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double d = 5;
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double min = WATER_LEVEL;
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if(p.Y < min)
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return v2f(0,0);
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else if(p.Y < min + d)
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f *= ((p.Y-min)/d);
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}
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#endif
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#if 1
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double vv = 0.75 + 1.0 * noise3d_perlin(
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0.5+p.X/250,
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0.5+p.Y/250,
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0.5+p.Z/250,
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seed+1324381, 4, 0.5);
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double vve = rangelim(vv, 0.0, 1.0);
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/*double vv = 1.0 - 2.0 * noise3d_perlin_abs(
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0.5+p.X/250,
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0.5+p.Y/250,
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0.5+p.Z/250,
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seed+1324031, 4, 0.5);
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//double vve = 1.0 - exp(-MYMAX(0, vv*2.0));
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double vve = MYMAX(0, vv);
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double vve = 1.0 - exp(-MYMAX(0, vv*2.0));*/
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//double vve = rangelim(vv, 0, 1.0);
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//dstream<<"vve="<<vve<<std::endl;
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/*// Limit turbulence near water level
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double a = contour((p.Y-WATER_LEVEL)/10.0);
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vve = (1.-a) * vve;*/
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// Increase turbulence in elevated heights
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double ah = WATER_LEVEL + 40;
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if(p.Y > ah)
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{
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vve *= p.Y/ah;
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}
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#else
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double vve = 1;
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#endif
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double v1 = f * noise3d_perlin(
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0.5+p.X/200,
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@ -2289,47 +2349,64 @@ bool is_base_ground(u64 seed, v3f p, double *depth_guess=NULL)
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}
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#endif
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v2f t = base_ground_turbulence(seed, p);
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bool is_ground = true;
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double surface_y_f = base_rock_level_2d(seed, v2f(p.X+t.X, p.Z+t.Y));
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/*if(depth_guess)
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*depth_guess = surface_y_f - p.Y;*/
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#if 1
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if(is_carved(seed, p))
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is_ground = false;
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#endif
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if(depth_guess)
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if(depth_guess || is_ground == true)
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{
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// Find highest surface near current
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v3f dirs[4] = {
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v3f(1,0,0),
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v3f(-1,0,0),
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v3f(0,0,1),
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v3f(0,0,-1)
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};
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double s2 = surface_y_f;
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for(u32 i=0; i<4; i++)
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v2f t = base_ground_turbulence(seed, p);
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double surface_y_f = base_rock_level_2d(seed, v2f(p.X+t.X, p.Z+t.Y));
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#if 0
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if(depth_guess)
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{
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v3f dir = dirs[i];
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// Get turbulence at around there
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v2f t2 = base_ground_turbulence(seed, p+dir);
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// Get ground height
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v2f l = v2f(p.X+t2.X+dir.X, p.Z+t2.Y+dir.Z);
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double s = base_rock_level_2d(seed, l);
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if(s > s2)
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s2 = s;
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}
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*depth_guess = s2 - p.Y;
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}
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/*if(depth_guess)
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{
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// Check a bit lower also, take highest surface
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v2f t2 = base_ground_turbulence(seed, p + v3f(0,-2,0));
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double s2 = base_rock_level_2d(seed, v2f(p.X+t2.X, p.Z+t2.Y));
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if(s2 > surface_y_f)
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// Find highest surface near current
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v3f dirs[4] = {
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v3f(1,0,0),
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v3f(-1,0,0),
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v3f(0,0,1),
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v3f(0,0,-1)
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};
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double s2 = surface_y_f;
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for(u32 i=0; i<4; i++)
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{
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v3f dir = dirs[i];
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// Get turbulence at around there
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v2f t2 = base_ground_turbulence(seed, p+dir);
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// Get ground height
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v2f l = v2f(p.X+t2.X+dir.X, p.Z+t2.Y+dir.Z);
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double s = base_rock_level_2d(seed, l);
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if(s > s2)
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s2 = s;
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}
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*depth_guess = s2 - p.Y;
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else
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}
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#endif
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#if 1
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if(depth_guess)
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{
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// Check a bit lower also, take highest surface
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v2f t2 = base_ground_turbulence(seed, p + v3f(0,-2,0));
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double s2 = base_rock_level_2d(seed, v2f(p.X+t2.X, p.Z+t2.Y));
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if(s2 > surface_y_f)
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*depth_guess = s2 - p.Y;
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else
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*depth_guess = surface_y_f - p.Y;
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}
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#endif
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#if 0
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if(depth_guess)
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*depth_guess = surface_y_f - p.Y;
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}*/
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#endif
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if(p.Y > surface_y_f)
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is_ground = false;
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}
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/*if(depth_guess)
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{
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@ -2340,13 +2417,6 @@ bool is_base_ground(u64 seed, v3f p, double *depth_guess=NULL)
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double s1 = base_rock_level_2d(seed, v2f(p.X+v1,p.Z+v2));
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}*/
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bool is_ground = (p.Y <= surface_y_f);
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#if 1
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if(is_carved(seed, p))
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is_ground = false;
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#endif
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return is_ground;
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}
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@ -4171,7 +4241,7 @@ MapBlock * ServerMap::generateBlock(
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} block_type = BT_SURFACE;
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{// ground_timer (0ms or ~100ms)
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//TimeTaker ground_timer("Ground generation");
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TimeTaker ground_timer("Ground generation");
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/*
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Approximate whether this block is a surface block, an air
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@ -4930,8 +5000,12 @@ continue_generating:
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// Lighting is invalid after generation for surface blocks
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if(block_type == BT_SURFACE)
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{
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#if 1
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block->setLightingExpired(true);
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lighting_invalidated_blocks.insert(p, block);
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#else
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block->setLightingExpired(false);
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#endif
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}
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// Lighting is not invalid for other blocks
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else
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