net.lenni0451.commons.math

Class MathUtils

java.lang.Object

net.lenni0451.commons.math.MathUtils

public class MathUtils
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
MathUtils()

Method Summary

Modifier and Type	Method and Description
static int	align(int value, int alignment) Align a value to the given alignment.
static long	align(long value, long alignment) Align a value to the given alignment.
static int	alignPOT(int value, int alignment) Align a value to the given alignment.
static long	alignPOT(long value, long alignment) Align a value to the given alignment.
static int	ceilInt(double d) Ceil a double to an int.
static int	ceilInt(float f) Ceil a float to an int.
static long	ceilLong(double d) Ceil a double to a long.
static long	ceilLong(float f) Ceil a float to a long.
static double	clamp(double d, double min, double max) Clamp a double between a min and max value.
static float	clamp(float f, float min, float max) Clamp a float between a min and max value.
static int	clamp(int i, int min, int max) Clamp an int between a min and max value.
static long	clamp(long l, long min, long max) Clamp a long between a min and max value.
static int	floorInt(double d) Floor a double to an int.
static int	floorInt(float f) Floor a float to an int.
static long	floorLong(double d) Floor a double to a long.
static long	floorLong(float f) Floor a float to a long.
static java.lang.String	formatBytes(long bytes) Convert a byte count to a human-readable string.
static boolean	isDecimal(double d) Check if a double is a decimal number.
static boolean	isDecimal(float f) Check if a float is a decimal number.
static double	log(double value, double base) Calculate the logarithm of a value with a given base.
static float	log(float value, float base) Calculate the logarithm of a value with a given base.
static int	log(int value, int base) Calculate the logarithm of a value with a given base.
static long	log(long value, long base) Calculate the logarithm of a value with a given base.
static double	map(double in, double inMin, double inMax, double outMin, double outMax) Map a double from one range to another.
static float	map(float in, float inMin, float inMax, float outMin, float outMax) Map a float from one range to another.
static int	map(int in, int inMin, int inMax, int outMin, int outMax) Map an int from one range to another.
static long	map(long in, long inMin, long inMax, long outMin, long outMax) Map a long from one range to another.
static double[]	round(double[] values, int precision) Round all doubles in an array to a certain precision.
static double	round(double value, int precision) Round a double to a certain precision.
static float[]	round(float[] values, int precision) Round all floats in an array to a certain precision.
static float	round(float value, int precision) Round a float to a certain precision.

Methods inherited from class java.lang.Object

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

Constructor Detail

MathUtils

public MathUtils()

Method Detail

floorInt

public static int floorInt(float f)

Floor a float to an int.

Parameters:

f - The float to floor

Returns:

The floored int

floorInt

public static int floorInt(double d)

Floor a double to an int.

Parameters:

d - The double to floor

Returns:

The floored int

floorLong

public static long floorLong(float f)

Floor a float to a long.

Parameters:

f - The float to floor

Returns:

The floored long

floorLong

public static long floorLong(double d)

Floor a double to a long.

Parameters:

d - The double to floor

Returns:

The floored long

ceilInt

public static int ceilInt(float f)

Ceil a float to an int.

Parameters:

f - The float to ceil

Returns:

The ceiled int

ceilInt

public static int ceilInt(double d)

Ceil a double to an int.

Parameters:

d - The double to ceil

Returns:

The ceiled int

ceilLong

public static long ceilLong(float f)

Ceil a float to a long.

Parameters:

f - The float to ceil

Returns:

The ceiled long

ceilLong

public static long ceilLong(double d)

Ceil a double to a long.

Parameters:

d - The double to ceil

Returns:

The ceiled long

clamp

public static int clamp(int i,
                        int min,
                        int max)

Clamp an int between a min and max value.

Parameters:

i - The int to clamp

min - The min value

max - The max value

Returns:

The clamped int

clamp

public static long clamp(long l,
                         long min,
                         long max)

Clamp a long between a min and max value.

Parameters:

l - The long to clamp

min - The min value

max - The max value

Returns:

The clamped long

clamp

public static float clamp(float f,
                          float min,
                          float max)

Clamp a float between a min and max value.

Parameters:

f - The float to clamp

min - The min value

max - The max value

Returns:

The clamped float

clamp

public static double clamp(double d,
                           double min,
                           double max)

Clamp a double between a min and max value.

Parameters:

d - The double to clamp

min - The min value

max - The max value

Returns:

The clamped double

isDecimal

public static boolean isDecimal(float f)

Check if a float is a decimal number.

Parameters:

f - The float to check

Returns:

If the float is a decimal number

isDecimal

public static boolean isDecimal(double d)

Check if a double is a decimal number.

Parameters:

d - The double to check

Returns:

If the double is a decimal number

map

public static int map(int in,
                      int inMin,
                      int inMax,
                      int outMin,
                      int outMax)

Map an int from one range to another.

Parameters:

in - The int to map

inMin - The min value of the input range

inMax - The max value of the input range

outMin - The min value of the output range

outMax - The max value of the output range

Returns:

The mapped int

map

public static long map(long in,
                       long inMin,
                       long inMax,
                       long outMin,
                       long outMax)

Map a long from one range to another.

Parameters:

in - The long to map

inMin - The min value of the input range

inMax - The max value of the input range

outMin - The min value of the output range

outMax - The max value of the output range

Returns:

The mapped long

map

public static float map(float in,
                        float inMin,
                        float inMax,
                        float outMin,
                        float outMax)

Map a float from one range to another.

Parameters:

in - The float to map

inMin - The min value of the input range

inMax - The max value of the input range

outMin - The min value of the output range

outMax - The max value of the output range

Returns:

The mapped float

map

public static double map(double in,
                         double inMin,
                         double inMax,
                         double outMin,
                         double outMax)

Map a double from one range to another.

Parameters:

in - The double to map

inMin - The min value of the input range

inMax - The max value of the input range

outMin - The min value of the output range

outMax - The max value of the output range

Returns:

The mapped double

formatBytes

public static java.lang.String formatBytes(long bytes)

Convert a byte count to a human-readable string.

Parameters:

bytes - The byte count

Returns:

The human-readable string

round

public static float round(float value,
                          int precision)

Round a float to a certain precision.

Parameters:

value - The float to round

precision - The precision

Returns:

The rounded float

round

public static float[] round(float[] values,
                            int precision)

Round all floats in an array to a certain precision.

Parameters:

values - The floats to round

precision - The precision

Returns:

The rounded floats

round

public static double round(double value,
                           int precision)

Round a double to a certain precision.

Parameters:

value - The double to round

precision - The precision

Returns:

The rounded double

round

public static double[] round(double[] values,
                             int precision)

Round all doubles in an array to a certain precision.

Parameters:

values - The doubles to round

precision - The precision

Returns:

The rounded doubles

alignPOT

public static int alignPOT(int value,
                           int alignment)

Align a value to the given alignment.
The alignment must be a power of two and greater than 0.

Parameters:

value - The value to align

alignment - The alignment

Returns:

The aligned value

alignPOT

public static long alignPOT(long value,
                            long alignment)

Align a value to the given alignment.
The alignment must be a power of two and greater than 0.

Parameters:

value - The value to align

alignment - The alignment

Returns:

The aligned value

align

public static int align(int value,
                        int alignment)

Align a value to the given alignment.
The alignment must be a power of two and greater than 0.

Parameters:

value - The value to align

alignment - The alignment

Returns:

The aligned value

align

public static long align(long value,
                         long alignment)

Align a value to the given alignment.
The alignment must be a power of two and greater than 0.

Parameters:

value - The value to align

alignment - The alignment

Returns:

The aligned value

log

public static int log(int value,
                      int base)

Calculate the logarithm of a value with a given base.
The value must be greater than 0 and the base must be greater than 1.

Parameters:

value - The value to calculate the logarithm for

base - The base of the logarithm

Returns:

The logarithm of the value with the given base

log

public static long log(long value,
                       long base)

Calculate the logarithm of a value with a given base.
The value must be greater than 0 and the base must be greater than 1.

Parameters:

value - The value to calculate the logarithm for

base - The base of the logarithm

Returns:

The logarithm of the value with the given base

log

public static float log(float value,
                        float base)

Calculate the logarithm of a value with a given base.
The value must be greater than 0 and the base must be greater than 1.

Parameters:

value - The value to calculate the logarithm for

base - The base of the logarithm

Returns:

The logarithm of the value with the given base

log

public static double log(double value,
                         double base)

Calculate the logarithm of a value with a given base.
The value must be greater than 0 and the base must be greater than 1.

Parameters:

value - The value to calculate the logarithm for

base - The base of the logarithm

Returns:

The logarithm of the value with the given base