public static ModuleBase CavesAndMountains(uint seed = 10000)
{
AccidentalNoise.Gradient ground_gradient = new AccidentalNoise.Gradient(0, 0, 0, 1);
// lowlands
Fractal lowland_shape_fractal = new Fractal(FractalType.BILLOW, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 2, 0.25, seed);
AutoCorrect lowland_autocorrect = new AutoCorrect(lowland_shape_fractal, 0, 1);
ScaleOffset lowland_scale = new ScaleOffset(.5, -0.45, lowland_autocorrect);
ScaleDomain lowland_y_scale = new ScaleDomain(lowland_scale, null, 0);
TranslatedDomain lowland_terrain = new TranslatedDomain(ground_gradient, null, lowland_y_scale);
// highlands
Fractal highland_shape_fractal = new Fractal(FractalType.FBM, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 4, 2, seed);
AutoCorrect highland_autocorrect = new AutoCorrect(highland_shape_fractal, 0, 1.5);
ScaleOffset highland_scale = new ScaleOffset(1, 0, highland_autocorrect);
ScaleDomain highland_y_scale = new ScaleDomain(highland_scale, null, 1);
TranslatedDomain highland_terrain = new TranslatedDomain(ground_gradient, null, highland_y_scale);
// mountains
Fractal mountain_shape_fractal = new Fractal(FractalType.RIDGEDMULTI, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 8, 1, seed);
AutoCorrect mountain_autocorrect = new AutoCorrect(mountain_shape_fractal, -1, 1);
ScaleOffset mountain_scale = new ScaleOffset(0.3, 0.3, mountain_autocorrect);
ScaleDomain mountain_y_scale = new ScaleDomain(mountain_scale, null, 1);
TranslatedDomain mountain_terrain = new TranslatedDomain(ground_gradient, null, mountain_y_scale);
// terrain
Fractal terrain_type_fractal = new Fractal(FractalType.FBM, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 3, 0.125, seed);
AutoCorrect terrain_autocorrect = new AutoCorrect(terrain_type_fractal, 0, 1);
ScaleDomain terrain_type_y_scale = new ScaleDomain(terrain_autocorrect, null, 0);
Cache terrain_type_cache = new Cache(terrain_type_y_scale);
Select highland_mountain_select = new Select(terrain_type_cache, highland_terrain, mountain_terrain, 0.55, 0.2);
Select highland_lowland_select = new Select(terrain_type_cache, lowland_terrain, highland_mountain_select, 0.25, 0.15);
Cache highland_lowland_select_cache = new Cache(highland_lowland_select);
Select ground_select = new Select(highland_lowland_select_cache, 0, 1, 0.5, null);
// caves
Fractal cave_shape = new Fractal(FractalType.RIDGEDMULTI, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 1, 2, seed);
Bias cave_attenuate_bias = new Bias(highland_lowland_select_cache, 0.9);
Combiner cave_shape_attenuate = new Combiner(CombinerTypes.MULT, cave_shape, cave_attenuate_bias);
Fractal cave_perturb_fractal = new Fractal(FractalType.FBM, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 6, 3, seed);
ScaleOffset cave_perturb_scale = new ScaleOffset(1, 0, cave_perturb_fractal);
TranslatedDomain cave_perturb = new TranslatedDomain(cave_shape_attenuate, cave_perturb_scale, null);
Select cave_select = new Select(cave_perturb, 1, 0, 0.4, 0);
return(new Combiner(CombinerTypes.MULT, cave_select, ground_select) as ModuleBase);
}
public Form1()
{
InitializeComponent();
Bitmap bitmap = new Bitmap(pictureBox1.Width, pictureBox1.Height);
Gradient ground_gradient = new Gradient(0, 0, 0, 1);
#region lowlands
Fractal lowland_shape_fractal = new Fractal(FractalType.BILLOW, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 2, 0.25, null);
AutoCorrect lowland_autocorrect = new AutoCorrect(lowland_shape_fractal, 0, 1);
ScaleOffset lowland_scale = new ScaleOffset(0.125, -0.45, lowland_autocorrect);
ScaleDomain lowland_y_scale = new ScaleDomain(lowland_scale, null, 0);
TranslatedDomain lowland_terrain = new TranslatedDomain(ground_gradient, null, lowland_y_scale);
#endregion
#region highlands
Fractal highland_shape_fractal = new Fractal(FractalType.FBM, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 4, 2, null);
AutoCorrect highland_autocorrect = new AutoCorrect(highland_shape_fractal, -1, 1);
ScaleOffset highland_scale = new ScaleOffset(0.25, 0, highland_autocorrect);
ScaleDomain highland_y_scale = new ScaleDomain(highland_scale, null, 0);
TranslatedDomain highland_terrain = new TranslatedDomain(ground_gradient, null, highland_y_scale);
#endregion
#region mountains
Fractal mountain_shape_fractal = new Fractal(FractalType.RIDGEDMULTI, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 8, 1, null);
AutoCorrect mountain_autocorrect = new AutoCorrect(mountain_shape_fractal, -1, 1);
ScaleOffset mountain_scale = new ScaleOffset(0.3, 0.15, mountain_autocorrect);
ScaleDomain mountain_y_scale = new ScaleDomain(mountain_scale, null, 0.15);
TranslatedDomain mountain_terrain = new TranslatedDomain(ground_gradient, null, mountain_y_scale);
#endregion
#region terrain
Fractal terrain_type_fractal = new Fractal(FractalType.FBM, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 3, 0.125, null);
AutoCorrect terrain_autocorrect = new AutoCorrect(terrain_type_fractal, 0, 1);
ScaleDomain terrain_type_y_scale = new ScaleDomain(terrain_autocorrect, null, 0);
Cache terrain_type_cache = new Cache(terrain_type_y_scale);
Select highland_mountain_select = new Select(terrain_type_cache, highland_terrain, mountain_terrain, 0.55, 0.2);
Select highland_lowland_select = new Select(terrain_type_cache, lowland_terrain, highland_mountain_select, 0.25, 0.15);
Cache highland_lowland_select_cache = new Cache(highland_lowland_select);
Select ground_select = new Select(highland_lowland_select_cache, 0, 1, 0.5, null);
#endregion
#region caves
Fractal cave_shape = new Fractal(FractalType.RIDGEDMULTI, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 1, 4, null);
Bias cave_attenuate_bias = new Bias(highland_lowland_select_cache, 0.65);
Combiner cave_shape_attenuate = new Combiner(CombinerTypes.MULT, cave_shape, cave_attenuate_bias);
Fractal cave_perturb_fractal = new Fractal(FractalType.FBM, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 6, 3, null);
ScaleOffset cave_perturb_scale = new ScaleOffset(0.5, 0, cave_perturb_fractal);
TranslatedDomain cave_perturb = new TranslatedDomain(cave_shape_attenuate, cave_perturb_scale, null);
Select cave_select = new Select(cave_perturb, 1, 0, 0.75, 0);
#endregion
Combiner gound_cave_multiply = new Combiner(CombinerTypes.MULT, cave_select, ground_select);
//EXAMPLE 1
//Gradient ground_gradient = new Gradient(0, 0, 0, 1);
//Fractal ground_shape_fractal = new Fractal(FractalType.FBM,
// BasisTypes.GRADIENT,
// InterpTypes.QUINTIC,
// 6, 2, null);
//ScaleOffset ground_scale = new Accidental.ScaleOffset(0.5, 0, ground_shape_fractal);
//ScaleDomain ground_scale_y = new ScaleDomain(null, 0, ground_scale);
//TranslatedDomain ground_perturb = new TranslatedDomain(ground_gradient, null, ground_scale_y);
//Fractal ground_overhang_fractal = new Fractal(FractalType.FBM,
// BasisTypes.GRADIENT,
// InterpTypes.QUINTIC,
// 6, 2, 23434);
//ScaleOffset ground_overhang_scale = new ScaleOffset(0.2, 0, ground_overhang_fractal);
//TranslatedDomain ground_overhang_perturb = new TranslatedDomain(ground_perturb, ground_overhang_scale, null);
//Select ground_select = new Select(ground_overhang_perturb, 0, 1, 0.5, null);
//EXAMPLE 2
//Fractal cave_shape = new Accidental.Fractal(FractalType.RIDGEDMULTI, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 1, 2, 4533);
//Select cave_select = new Accidental.Select(cave_shape, 1, 0, 0.6, 0);
//Fractal cave_perturb_fractal = new Fractal(FractalType.FBM, BasisTypes.GRADIENT, InterpTypes.QUINTIC, 6, 3, null);
//ScaleOffset cave_perturb_scale = new ScaleOffset(0.25, 0, cave_perturb_fractal);
//TranslatedDomain cave_perturb = new TranslatedDomain(cave_select, cave_perturb_scale, null);
SMappingRanges ranges = new SMappingRanges();
//finally update our image
for (int x = 0; x < bitmap.Width; x++)
{
for(int y = 0; y < bitmap.Height; y++)
{
double p = (double)x / (double)bitmap.Width;
double q = (double)y / (double)bitmap.Height;
double nx, ny = 0.0;
nx = ranges.mapx0 + p * (ranges.mapx1 - ranges.mapx0);
ny = ranges.mapy0 + q * (ranges.mapy1 - ranges.mapy0);
double val = gound_cave_multiply.Get(nx * 6, ny * 3);
bitmap.SetPixel(x, y, Color.Black.Lerp(Color.White, val));
}
}
pictureBox1.Image = bitmap;
}