squidpony.squidmath

Class Noise.Basic1D

java.lang.Object

squidpony.squidmath.Noise.Basic1D

All Implemented Interfaces:

Noise.Noise1D

Enclosing class:

Noise

public static class Noise.Basic1D
extends java.lang.Object
implements Noise.Noise1D

A very simple 1D noise implementation, because a full-blown Perlin or Simplex noise implementation is probably overkill for 1D noise. This does produce smoothly sloping lines, like Simplex noise does for higher dimensions. The shape of the line varies over time, but can look like this. If you give this a seed with getNoiseWithSeed(double, long) instead of using getNoise(double), it will use a small extra step to adjust the spacing of peaks and valleys based on the seed, so getNoiseWithSeed is slower than getNoise. If you use any Noise classes like Noise.Layered1D, they should use a seed anyway because different octaves won't have different enough shapes otherwise.

Field Summary

Fields

Modifier and Type	Field and Description
double	alter1
double	alter2
double	alter3
double	alter4
static Noise.Basic1D	instance
long	lastSeed

Constructor Summary

Constructors

Constructor and Description
Basic1D()
Basic1D(long seed)

Method Summary

Modifier and Type	Method and Description
static double	cubicSway(double value)
double	getNoise(double x)
double	getNoiseWithSeed(double x, long seed)
static double	noise(double x, long seed)

Methods inherited from class java.lang.Object

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

Field Detail

instance

public static final Noise.Basic1D instance

alter1

public double alter1

alter2

public double alter2

alter3

public double alter3

alter4

public double alter4

lastSeed

public long lastSeed

Constructor Detail

Basic1D

public Basic1D()

Basic1D

public Basic1D(long seed)

Method Detail

getNoise

public double getNoise(double x)

Specified by:

getNoise in interface Noise.Noise1D

getNoiseWithSeed

public double getNoiseWithSeed(double x,
                               long seed)

Specified by:

getNoiseWithSeed in interface Noise.Noise1D

cubicSway

public static double cubicSway(double value)

noise

public static double noise(double x,
                           long seed)