Package net.glowstone.util.noise

Class SimplexNoise

java.lang.Object
org.bukkit.util.noise.NoiseGenerator
org.bukkit.util.noise.PerlinNoiseGenerator
net.glowstone.util.noise.PerlinNoise
net.glowstone.util.noise.SimplexNoise
public class SimplexNoise extends PerlinNoise
A speed-improved simplex noise algorithm.

Based on example code by Stefan Gustavson (stegu@itn.liu.se). Optimisations by Peter Eastman (peastman@drizzle.stanford.edu). Better rank ordering method by Stefan Gustavson in 2012.

This could be sped up even further, but it's useful as is.

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    protected static final double
    F2
     
    protected static final double
    F3
     
    protected static final double
    G2
     
    protected static final double
    G22
     
    protected static final double
    G3
     
    protected static final double
    G32
     
    protected static final double
    G33
     
    protected final int[]
    permMod12
     
    protected static final double
    SQRT_3
     

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

    offsetX, offsetY, offsetZ, perm

  • Constructor Summary

    Constructors
    Constructor
    Description
    SimplexNoise(Random rand)
    Creates a simplex noise generator.

  • Method Summary

    Modifier and Type
    Method
    Description
    protected static double
    dot(net.glowstone.util.noise.SimplexNoise.Grad g, double x, double y)
     
    protected static double
    dot(net.glowstone.util.noise.SimplexNoise.Grad g, double x, double y, double z)
     
    static int
    floor(double x)
     
    protected double[]
    get2dNoise(double[] noise, double x, double z, int sizeX, int sizeY, double scaleX, double scaleY, double amplitude)
     
    protected double[]
    get3dNoise(double[] noise, double x, double y, double z, int sizeX, int sizeY, int sizeZ, double scaleX, double scaleY, double scaleZ, double amplitude)
     
    double
    noise(double xin, double yin)
     
    double
    noise(double xin, double yin, double zin)
     

    Methods inherited from class net.glowstone.util.noise.PerlinNoise

    getNoise

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

    getInstance, getNoise, getNoise, getNoise, getNoise, getNoise, getNoise

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

    fade, grad, lerp, noise, noise, noise, noise, noise, noise, noise

    Methods inherited from class java.lang.Object

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

  • Field Details

  • Constructor Details

    • SimplexNoise

      public SimplexNoise(Random rand)
      Creates a simplex noise generator.
      Parameters:
      rand - the PRNG to use

  • Method Details

    • floor

      public static int floor(double x)

    • dot

      protected static double dot(net.glowstone.util.noise.SimplexNoise.Grad g, double x, double y)

    • dot

      protected static double dot(net.glowstone.util.noise.SimplexNoise.Grad g, double x, double y, double z)

    • get2dNoise

      protected double[] get2dNoise(double[] noise, double x, double z, int sizeX, int sizeY, double scaleX, double scaleY, double amplitude)
      Overrides:
      get2dNoise in class PerlinNoise

    • get3dNoise

      protected double[] get3dNoise(double[] noise, double x, double y, double z, int sizeX, int sizeY, int sizeZ, double scaleX, double scaleY, double scaleZ, double amplitude)
      Overrides:
      get3dNoise in class PerlinNoise

    • noise

      public double noise(double xin, double yin)
      Overrides:
      noise in class org.bukkit.util.noise.NoiseGenerator

    • noise

      public double noise(double xin, double yin, double zin)
      Overrides:
      noise in class org.bukkit.util.noise.PerlinNoiseGenerator