Package com.hypixel.hytale.math.random

Class RandomExtra

java.lang.Object

com.hypixel.hytale.math.random.RandomExtra

public final class RandomExtra
extends Object

Constructor Summary

Constructors

Modifier	Constructor	Description
private	RandomExtra()

Method Summary

Modifier and Type	Method	Description
static Vector3d	jitter(Vector3d vec, double maxRange)
static int	pickWeightedIndex(double[] weights)
static double	randomBinomial()
static boolean	randomBoolean()
static Duration	randomDuration(Duration from, Duration to)
static <T> T	randomElement(List<T> collection)
static <T> T	randomIntWeightedElement(Collection<? extends T> elements, ToIntFunction<T> weight)
static <T> T	randomIntWeightedElement(Collection<? extends T> elements, ToIntFunction<T> weight, int sumWeights)
static double	randomRange(double[] range)
static double	randomRange(double from, double to)
static float	randomRange(float[] range)
static float	randomRange(float from, float to)
static int	randomRange(int bound)
static int	randomRange(int[] range)
static int	randomRange(int from, int to)
static long	randomRange(long from, long to)
static <T, U> T	randomWeightedElement(Collection<? extends T> elements, BiPredicate<T,U> filter, ToDoubleBiFunction<T,U> weight, double sumWeights, U meta)
static <T> T	randomWeightedElement(Collection<? extends T> elements, Predicate<T> filter, ToDoubleFunction<T> weight)
static <T> T	randomWeightedElement(Collection<? extends T> elements, Predicate<T> filter, ToDoubleFunction<T> weight, double sumWeights)
static <T> T	randomWeightedElement(Collection<? extends T> elements, ToDoubleFunction<T> weight)
static <T> T	randomWeightedElement(Collection<? extends T> elements, ToDoubleFunction<T> weight, double sumWeights)
static <T> T	randomWeightedElementFiltered(Collection<? extends T> elements, Predicate<T> filter, ToIntFunction<T> weight)
static <T> T	randomWeightedElementFiltered(Collection<? extends T> elements, Predicate<T> filter, ToIntFunction<T> weight, int sumWeights)
static <E, T extends List<E>> void	reservoirSample(E element, int count, T picked)
static <T> void	reservoirSample(List<T> input, Predicate<T> matcher, int count, List<T> picked)
static <E, S extends List<E>, F, T extends List<F>, G, H> void	reservoirSample(S input, TriFunction<E,G,H,F> filter, int count, T picked, G g, H h)

Methods inherited from class java.lang.Object

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

Constructor Details

RandomExtra

private RandomExtra()

Method Details

randomBinomial

public static double randomBinomial()

randomRange

public static double randomRange(@Nonnull
 double[] range)

randomRange

public static double randomRange(double from,
 double to)

randomRange

public static float randomRange(@Nonnull
 float[] range)

randomRange

public static float randomRange(float from,
 float to)

randomRange

public static int randomRange(int bound)

randomRange

public static int randomRange(@Nonnull
 int[] range)

randomRange

public static int randomRange(int from,
 int to)

randomRange

public static long randomRange(long from,
 long to)

randomDuration

public static Duration randomDuration(@Nonnull
 Duration from,
 @Nonnull
 Duration to)

randomBoolean

public static boolean randomBoolean()

randomElement

public static <T> T randomElement(@Nonnull
 List<T> collection)

jitter

@Nonnull
public static Vector3d jitter(@Nonnull
 Vector3d vec,
 double maxRange)

randomWeightedElement

@Nullable
public static <T> T randomWeightedElement(@Nonnull
 Collection<? extends T> elements,
 @Nonnull
 ToDoubleFunction<T> weight)

randomWeightedElement

@Nullable
public static <T> T randomWeightedElement(@Nonnull
 Collection<? extends T> elements,
 @Nonnull
 ToDoubleFunction<T> weight,
 double sumWeights)

randomIntWeightedElement

@Nullable
public static <T> T randomIntWeightedElement(@Nonnull
 Collection<? extends T> elements,
 @Nonnull
 ToIntFunction<T> weight)

randomIntWeightedElement

@Nullable
public static <T> T randomIntWeightedElement(@Nonnull
 Collection<? extends T> elements,
 @Nonnull
 ToIntFunction<T> weight,
 int sumWeights)

randomWeightedElementFiltered

@Nullable
public static <T> T randomWeightedElementFiltered(@Nonnull
 Collection<? extends T> elements,
 @Nonnull
 Predicate<T> filter,
 @Nonnull
 ToIntFunction<T> weight)

randomWeightedElementFiltered

@Nullable
public static <T> T randomWeightedElementFiltered(@Nonnull
 Collection<? extends T> elements,
 @Nonnull
 Predicate<T> filter,
 @Nonnull
 ToIntFunction<T> weight,
 int sumWeights)

randomWeightedElement

@Nullable
public static <T> T randomWeightedElement(@Nonnull
 Collection<? extends T> elements,
 @Nonnull
 Predicate<T> filter,
 @Nonnull
 ToDoubleFunction<T> weight)

randomWeightedElement

@Nullable
public static <T> T randomWeightedElement(@Nonnull
 Collection<? extends T> elements,
 @Nonnull
 Predicate<T> filter,
 @Nonnull
 ToDoubleFunction<T> weight,
 double sumWeights)

randomWeightedElement

@Nullable
public static <T,
U> T randomWeightedElement(@Nonnull
 Collection<? extends T> elements,
 @Nonnull
 BiPredicate<T,U> filter,
 @Nonnull
 ToDoubleBiFunction<T,U> weight,
 double sumWeights,
 U meta)

reservoirSample

public static <T> void reservoirSample(@Nonnull
 List<T> input,
 @Nonnull
 Predicate<T> matcher,
 int count,
 @Nonnull
 List<T> picked)

reservoirSample

public static <E,
S extends List<E>,
F,
T extends List<F>,
G,
H>
void reservoirSample(@Nonnull
 S input,
 @Nonnull
 TriFunction<E,G,H,F> filter,
 int count,
 @Nonnull
 T picked,
 G g,
 H h)

reservoirSample

public static <E,
T extends List<E>> void reservoirSample(E element,
 int count,
 @Nonnull
 T picked)

pickWeightedIndex

public static int pickWeightedIndex(@Nonnull
 double[] weights)