org.bukkit.util.noise
Class NoiseGenerator

java.lang.Object
  extended by 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


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