net.glowstone.util.noise

Class PerlinOctaveGenerator

java.lang.Object

org.bukkit.util.noise.OctaveGenerator

net.glowstone.util.noise.PerlinOctaveGenerator

Direct Known Subclasses:

SimplexOctaveGenerator

public class PerlinOctaveGenerator
extends org.bukkit.util.noise.OctaveGenerator

Field Summary

Fields

Modifier and Type	Field and Description
protected double[]	noise
protected int	sizeX
protected int	sizeY
protected int	sizeZ

Fields inherited from class org.bukkit.util.noise.OctaveGenerator

octaves, xScale, yScale, zScale

Constructor Summary

Constructors

Constructor and Description
PerlinOctaveGenerator(org.bukkit.util.noise.NoiseGenerator[] octaves, Random rand, int sizeX, int sizeY, int sizeZ) Creates a generator for multiple layers of Perlin noise.
PerlinOctaveGenerator(Random rand, int octaves, int sizeX, int sizeZ)
PerlinOctaveGenerator(Random rand, int octaves, int sizeX, int sizeY, int sizeZ)

Method Summary

Modifier and Type	Method and Description
protected static org.bukkit.util.noise.NoiseGenerator[]	createOctaves(Random rand, int octaves)
protected static long	floor(double x)
double[]	getFractalBrownianMotion(double x, double z, double lacunarity, double persistence) Generates multiple layers of noise.
double[]	getFractalBrownianMotion(double x, double y, double z, double lacunarity, double persistence) Generates multiple layers of noise.
int	getSizeX()
int	getSizeY()
int	getSizeZ()

Methods inherited from class org.bukkit.util.noise.OctaveGenerator

getOctaves, getXScale, getYScale, getZScale, noise, noise, noise, noise, noise, noise, setScale, setXScale, setYScale, setZScale

Methods inherited from class java.lang.Object

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

Field Detail

sizeX

protected final int sizeX

sizeY

protected final int sizeY

sizeZ

protected final int sizeZ

noise

protected double[] noise

Constructor Detail

PerlinOctaveGenerator

public PerlinOctaveGenerator(Random rand,
                             int octaves,
                             int sizeX,
                             int sizeZ)

PerlinOctaveGenerator

public PerlinOctaveGenerator(Random rand,
                             int octaves,
                             int sizeX,
                             int sizeY,
                             int sizeZ)

PerlinOctaveGenerator

public PerlinOctaveGenerator(org.bukkit.util.noise.NoiseGenerator[] octaves,
                             Random rand,
                             int sizeX,
                             int sizeY,
                             int sizeZ)

Creates a generator for multiple layers of Perlin noise.

Parameters:

octaves - the noise generators

rand - the PRNG

sizeX - the size on the X axis

sizeY - the size on the Y axis

sizeZ - the size on the Z axis

Method Detail

createOctaves

protected static org.bukkit.util.noise.NoiseGenerator[] createOctaves(Random rand,
                                                                      int octaves)

floor

protected static long floor(double x)

getFractalBrownianMotion

public double[] getFractalBrownianMotion(double x,
                                         double z,
                                         double lacunarity,
                                         double persistence)

Generates multiple layers of noise.

Parameters:

x - the starting X coordinate

z - the starting Z coordinate

lacunarity - layer n's frequency as a fraction of layer n - 1's frequency

persistence - layer n's amplitude as a multiple of layer n - 1's amplitude

Returns:

The noise array

getFractalBrownianMotion

public double[] getFractalBrownianMotion(double x,
                                         double y,
                                         double z,
                                         double lacunarity,
                                         double persistence)

Generates multiple layers of noise.

Parameters:

x - the starting X coordinate

y - the starting Y coordinate

z - the starting Z coordinate

lacunarity - layer n's frequency as a fraction of layer n - 1's frequency

persistence - layer n's amplitude as a multiple of layer n - 1's amplitude

Returns:

The noise array

getSizeX

public int getSizeX()

getSizeY

public int getSizeY()

getSizeZ

public int getSizeZ()