squidpony.squidmath

Class PyrlinNoise

java.lang.Object

squidpony.squidmath.ClassicNoise

squidpony.squidmath.PyrlinNoise

All Implemented Interfaces:

Noise.Noise2D, Noise.Noise3D, Noise.Noise4D, Noise.Noise5D, Noise.Noise6D

@Beta
public class PyrlinNoise
extends ClassicNoise
implements Noise.Noise2D, Noise.Noise3D, Noise.Noise4D, Noise.Noise5D, Noise.Noise6D

A low-quality continuous noise generator with strong artifacts, meant to be used as a building block. This bases its implementation on ClassicNoise; this is almost entirely meant as an optimization for Classic Perlin noise. Instead of hashing all 2-to-the-D points, where D is the dimensionality, this hashes half of those points (like the square base of a pyramid), gets gradient vectors as ClassicNoise does, and interpolates that with the gradient vector of one point in the center of the cube Classic noise would have used (like the cap or point of a pyramid).
Note: the valueNoise(long, double, double) methods in this class return results in the range of 0.0 to 1.0, while the getNoise(double, double) and getNoiseWithSeed(double, double, long) methods use the Noise class default range of -1.0 to 1.0.

Field Summary

Fields

Modifier and Type	Field and Description
static PyrlinNoise	instance

Fields inherited from class squidpony.squidmath.ClassicNoise

seed

Constructor Summary

Constructors

Constructor and Description
PyrlinNoise()
PyrlinNoise(long seed)

Method Summary

Modifier and Type	Method and Description
double	getNoise(double x, double y)
double	getNoiseWithSeed(double x, double y, long seed)
static double	valueNoise(int seed, double x, double y, double z)
static double	valueNoise(int seed, double x, double y, double z, double w)
static double	valueNoise(int seed, double x, double y, double z, double w, double u)
static double	valueNoise(int seed, double x, double y, double z, double w, double u, double v)
static double	valueNoise(long seed, double x, double y)

Methods inherited from class squidpony.squidmath.ClassicNoise

getNoise, getNoise, getNoise, getNoise, getNoiseWithSeed, getNoiseWithSeed, getNoiseWithSeed, getNoiseWithSeed, gradCoord2D, gradCoord3D, gradCoord4D, gradCoord5D, gradCoord6D

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface squidpony.squidmath.Noise.Noise3D

getNoise, getNoiseWithSeed

Methods inherited from interface squidpony.squidmath.Noise.Noise4D

getNoise, getNoiseWithSeed

Methods inherited from interface squidpony.squidmath.Noise.Noise5D

getNoise, getNoiseWithSeed

Methods inherited from interface squidpony.squidmath.Noise.Noise6D

getNoise, getNoiseWithSeed

Field Detail

instance

public static final PyrlinNoise instance

Constructor Detail

PyrlinNoise

public PyrlinNoise()

PyrlinNoise

public PyrlinNoise(long seed)

Method Detail

valueNoise

public static double valueNoise(long seed,
                                double x,
                                double y)

valueNoise

public static double valueNoise(int seed,
                                double x,
                                double y,
                                double z)

valueNoise

public static double valueNoise(int seed,
                                double x,
                                double y,
                                double z,
                                double w)

valueNoise

public static double valueNoise(int seed,
                                double x,
                                double y,
                                double z,
                                double w,
                                double u)

valueNoise

public static double valueNoise(int seed,
                                double x,
                                double y,
                                double z,
                                double w,
                                double u,
                                double v)

getNoise

public double getNoise(double x,
                       double y)

Specified by:

getNoise in interface Noise.Noise2D

Overrides:

getNoise in class ClassicNoise

getNoiseWithSeed

public double getNoiseWithSeed(double x,
                               double y,
                               long seed)

Specified by:

getNoiseWithSeed in interface Noise.Noise2D

Overrides:

getNoiseWithSeed in class ClassicNoise