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com.badlogic.gdx.math.collision

public Class Sphere

extends Object
implements Serializable
Class Inheritance
All Implemented Interfaces
java.io.Serializable
Imports
java.io.Serializable, com.badlogic.gdx.math.MathUtils, .Vector3, com.badlogic.gdx.utils.NumberUtils

Encapsulates a 3D sphere with a center and a radius
Author
[email protected]

Field Summary

Modifier and TypeField and Description
public final Vector3
center

the center of the sphere

private static final float
public float
radius

the radius of the sphere

private static final long

Constructor Summary

AccessConstructor and Description
public
Sphere(Vector3
The center
center
,
float
The radius
radius
)

Constructs a sphere with the given center and radius

Method Summary

Modifier and TypeMethod and Description
public boolean
equals(Object o)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.

public boolean
overlaps(Sphere
the other sphere
sphere
)

Returns: whether this and the other sphere overlap

public float
public float
Inherited from java.lang.Object:
clonefinalizegetClassnotifynotifyAlltoStringwaitwaitwait

Field Detail

centerback to summary
public final Vector3 center

the center of the sphere

PI_4_3back to summary
private static final float PI_4_3
radiusback to summary
public float radius

the radius of the sphere

serialVersionUIDback to summary
private static final long serialVersionUID

Constructor Detail

Sphereback to summary
public Sphere(Vector3 center, float radius)

Constructs a sphere with the given center and radius

Parameters
center:Vector3

The center

radius:float

The radius

Method Detail

equalsback to summary
public boolean equals(Object o)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Annotations
@Override
hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Annotations
@Override
overlapsback to summary
public boolean overlaps(Sphere sphere)
Parameters
sphere:Sphere

the other sphere

Returns:boolean

whether this and the other sphere overlap

surfaceAreaback to summary
public float surfaceArea()
volumeback to summary
public float volume()