Package com.plotsquared.core.util

Class MathMan

java.lang.Object

com.plotsquared.core.util.MathMan

public class MathMan
extends Object

Constructor Summary

Constructors

Constructor	Description
MathMan()

Method Summary

Modifier and Type	Method	Description
static final float	atan2(float y, float x)
static final int	average(int a, int b)
static int	floorMod(int x, int y)
static final int	gcd(int[] a)
static final int	gcd(int a, int b)
static float[]	getDirection(float yaw, float pitch)	get the x,y,z unit vector from pitch and yaw specified
static double	getMean(double[] array)
static double	getMean(int[] array)
static float[]	getPitchAndYaw(float x, float y, float z)	Returns [ pitch, yaw ]
static int	getPositiveId(int i)
static double	getSD(double[] array, double av)
static double	getSD(int[] array, double av)
static long	inverseRound(double val)
static float	invSqrt(float x)
static boolean	isInteger(String str)
static boolean	isPowerOfTwo(int number)
static int	mod(int x, int y)
static int	pair(short x, short y)
static byte	pair16(byte x, byte y)
static long	pairInt(int x, int y)
static int	roundInt(double value)
static int	sqrt(int x)
static double	sqrtApprox(double d)
static float	sqrtApprox(float f)
static byte	unpair16x(byte value)
static byte	unpair16y(byte value)
static int	unpairIntX(long pair)
static int	unpairIntY(long pair)
static short	unpairX(int hash)
static short	unpairY(int hash)
static int	unsignedmod(int x, int y)

Methods inherited from class java.lang.Object

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

Constructor Details

MathMan

public MathMan()

Method Details

gcd

public static final int gcd(int a,
 int b)

gcd

public static final int gcd(int[] a)

pairInt

public static long pairInt(int x,
 int y)

unpairIntX

public static int unpairIntX(long pair)

unpairIntY

public static int unpairIntY(long pair)

pair16

public static byte pair16(byte x,
 byte y)

unpair16x

public static byte unpair16x(byte value)

unpair16y

public static byte unpair16y(byte value)

inverseRound

public static long inverseRound(double val)

sqrt

public static int sqrt(int x)

getMean

public static double getMean(int[] array)

getMean

public static double getMean(double[] array)

pair

public static int pair(short x,
 short y)

average

public static final int average(int a,
 int b)

unpairX

public static short unpairX(int hash)

unpairY

public static short unpairY(int hash)

getDirection

public static float[] getDirection(float yaw,
 float pitch)

get the x,y,z unit vector from pitch and yaw specified

Parameters:

yaw - yaw

pitch - pitch

Returns:

x, y, z unit vector

floorMod

public static int floorMod(int x,
 int y)

roundInt

public static int roundInt(double value)

getPitchAndYaw

public static float[] getPitchAndYaw(float x,
 float y,
 float z)

Returns [ pitch, yaw ]

Parameters:

x - x

y - y

z - z

Returns:

pitch and yaw of x,y,z from 0,0,0

atan2

public static final float atan2(float y,
 float x)

sqrtApprox

public static float sqrtApprox(float f)

sqrtApprox

public static double sqrtApprox(double d)

invSqrt

public static float invSqrt(float x)

getPositiveId

public static int getPositiveId(int i)

isInteger

public static boolean isInteger(String str)

getSD

public static double getSD(double[] array,
 double av)

getSD

public static double getSD(int[] array,
 double av)

mod

public static int mod(int x,
 int y)

unsignedmod

public static int unsignedmod(int x,
 int y)

isPowerOfTwo

public static boolean isPowerOfTwo(int number)