org.bukkit.util.noise
Class NoiseGenerator

java.lang.Object
  org.bukkit.util.noise.NoiseGenerator

Direct Known Subclasses:

PerlinNoiseGenerator

public abstract class NoiseGenerator
extends Object

Base class for all noise generators

Field Summary

protected double	offsetX
protected double	offsetY
protected double	offsetZ
protected int[]	perm

Constructor Summary

NoiseGenerator()

Method Summary

protected static double	fade(double x)
static int	floor(double x) Speedy floor, faster than (int)Math.floor(x)
protected static double	grad(int hash, double x, double y, double z)
protected static double	lerp(double x, double y, double z)
double	noise(double x) Computes and returns the 1D noise for the given coordinate in 1D space
double	noise(double x, double y) Computes and returns the 2D noise for the given coordinates in 2D space
abstract double	noise(double x, double y, double z) Computes and returns the 3D noise for the given coordinates in 3D space
double	noise(double x, double y, double z, int octaves, double frequency, double amplitude) Generates noise for the 3D coordinates using the specified number of octaves and parameters
double	noise(double x, double y, double z, int octaves, double frequency, double amplitude, boolean normalized) Generates noise for the 3D coordinates using the specified number of octaves and parameters
double	noise(double x, double y, int octaves, double frequency, double amplitude) Generates noise for the 2D coordinates using the specified number of octaves and parameters
double	noise(double x, double y, int octaves, double frequency, double amplitude, boolean normalized) Generates noise for the 2D coordinates using the specified number of octaves and parameters
double	noise(double x, int octaves, double frequency, double amplitude) Generates noise for the 1D coordinates using the specified number of octaves and parameters
double	noise(double x, int octaves, double frequency, double amplitude, boolean normalized) Generates noise for the 1D coordinates using the specified number of octaves and parameters

Methods inherited from class java.lang.Object

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

Field Detail

perm

protected final int[] perm

offsetX

protected double offsetX

offsetY

protected double offsetY

offsetZ

protected double offsetZ

Constructor Detail

NoiseGenerator

public NoiseGenerator()

Method Detail

floor

public static int floor(double x)

Speedy floor, faster than (int)Math.floor(x)

Parameters:

x - Value to floor

Returns:

Floored value

fade

protected static double fade(double x)

lerp

protected static double lerp(double x,
                             double y,
                             double z)

grad

protected static double grad(int hash,
                             double x,
                             double y,
                             double z)

noise

public double noise(double x)

Computes and returns the 1D noise for the given coordinate in 1D space

Parameters:

x - X coordinate

Returns:

Noise at given location, from range -1 to 1

noise

public double noise(double x,
                    double y)

Computes and returns the 2D noise for the given coordinates in 2D space

Parameters:

x - X coordinate

y - Y coordinate

Returns:

Noise at given location, from range -1 to 1

noise

public abstract double noise(double x,
                             double y,
                             double z)

Computes and returns the 3D noise for the given coordinates in 3D space

Parameters:

x - X coordinate

y - Y coordinate

z - Z coordinate

Returns:

Noise at given location, from range -1 to 1

noise

public double noise(double x,
                    int octaves,
                    double frequency,
                    double amplitude)

Generates noise for the 1D coordinates using the specified number of octaves and parameters

Parameters:

x - X-coordinate

octaves - Number of octaves to use

frequency - How much to alter the frequency by each octave

amplitude - How much to alter the amplitude by each octave

Returns:

Resulting noise

noise

public double noise(double x,
                    int octaves,
                    double frequency,
                    double amplitude,
                    boolean normalized)

Generates noise for the 1D coordinates using the specified number of octaves and parameters

Parameters:

x - X-coordinate

octaves - Number of octaves to use

frequency - How much to alter the frequency by each octave

amplitude - How much to alter the amplitude by each octave

normalized - If true, normalize the value to [-1, 1]

Returns:

Resulting noise

noise

public double noise(double x,
                    double y,
                    int octaves,
                    double frequency,
                    double amplitude)

Generates noise for the 2D coordinates using the specified number of octaves and parameters

Parameters:

x - X-coordinate

y - Y-coordinate

octaves - Number of octaves to use

frequency - How much to alter the frequency by each octave

amplitude - How much to alter the amplitude by each octave

Returns:

Resulting noise

noise

public double noise(double x,
                    double y,
                    int octaves,
                    double frequency,
                    double amplitude,
                    boolean normalized)

Generates noise for the 2D coordinates using the specified number of octaves and parameters

Parameters:

x - X-coordinate

y - Y-coordinate

octaves - Number of octaves to use

frequency - How much to alter the frequency by each octave

amplitude - How much to alter the amplitude by each octave

normalized - If true, normalize the value to [-1, 1]

Returns:

Resulting noise

noise

public double noise(double x,
                    double y,
                    double z,
                    int octaves,
                    double frequency,
                    double amplitude)

Generates noise for the 3D coordinates using the specified number of octaves and parameters

Parameters:

x - X-coordinate

y - Y-coordinate

z - Z-coordinate

octaves - Number of octaves to use

frequency - How much to alter the frequency by each octave

amplitude - How much to alter the amplitude by each octave

Returns:

Resulting noise

noise

public double noise(double x,
                    double y,
                    double z,
                    int octaves,
                    double frequency,
                    double amplitude,
                    boolean normalized)

Generates noise for the 3D coordinates using the specified number of octaves and parameters

Parameters:

x - X-coordinate

y - Y-coordinate

z - Z-coordinate

octaves - Number of octaves to use

frequency - How much to alter the frequency by each octave

amplitude - How much to alter the amplitude by each octave

normalized - If true, normalize the value to [-1, 1]

Returns:

Resulting noise