com.jme3.bullet.collision.shapes

Class MultiSphere

java.lang.Object

com.jme3.bullet.NativePhysicsObject

com.jme3.bullet.collision.shapes.CollisionShape

com.jme3.bullet.collision.shapes.ConvexShape

com.jme3.bullet.collision.shapes.MultiSphere

All Implemented Interfaces:

java.lang.Comparable<NativePhysicsObject>

public class MultiSphere
extends ConvexShape

A convex collision shape based on Bullet's btMultiSphereShape. Unlike a CapsuleCollisionShape or a SphereCollisionShape, these shapes have margins and can be scaled non-uniformly.

Field Summary

Fields

Modifier and Type	Field and Description
static java.util.logging.Logger	logger2 message logger for this class

Fields inherited from class com.jme3.bullet.collision.shapes.ConvexShape

loggerX

Fields inherited from class com.jme3.bullet.collision.shapes.CollisionShape

enableContactFilter, logger, margin, scale

Fields inherited from class com.jme3.bullet.NativePhysicsObject

loggerN

Constructor Summary

Constructors

Constructor and Description
MultiSphere(float radius) Instantiate a centered sphere shape with the specified radius.
MultiSphere(float radius, float height) Instantiate a centered Y-axis capsule shape with the specified radius and height.
MultiSphere(float radius, float height, int axisIndex) Instantiate a centered capsule shape with the specified radius, height, and axis.
MultiSphere(java.util.List<Vector3f> centers, java.util.List<java.lang.Float> radii) Instantiate a multi-sphere shape with the specified centers and radii.
MultiSphere(RectangularSolid rectangularSolid) Instantiate a 4-sphere shape to fill the specified RectangularSolid.
MultiSphere(Vector3f[] centers, float... radii) Instantiate a multi-sphere shape with the specified centers and radii.
MultiSphere(Vector3f center, float radius) Instantiate an eccentric sphere shape with the specified center and radius.

Method Summary

Modifier and Type	Method and Description
Vector3f	copyCenter(int sphereIndex, Vector3f storeResult) Copy the location of the center of the indexed sphere.
int	countSpheres() Count the spheres in the shape.
float	getRadius(int sphereIndex) Return the radius of the indexed sphere.
protected void	recalculateAabb() Recalculate the shape's bounding box if necessary.
float	scaledVolume() Estimate the volume of the shape, including scale and margin.
HullCollisionShape	toHullShape() Approximate this shape with a HullCollisionShape.

Methods inherited from class com.jme3.bullet.collision.shapes.ConvexShape

isConcave, isConvex, toSplittableShape

Methods inherited from class com.jme3.bullet.collision.shapes.CollisionShape

aabbCenter, boundingBox, boundingBox, canScale, canSplit, getDefaultMargin, getMargin, getScale, getScaleDp, getShapeType, getShapeType, isContactFilterEnabled, isInfinite, isNonMoving, isPolyhedral, maxRadius, nativeMargin, setContactFilterEnabled, setDefaultMargin, setMargin, setNativeId, setScale, setScale, setUserIndex, setUserIndex2, toString, updateScale, userIndex, userIndex2

Methods inherited from class com.jme3.bullet.NativePhysicsObject

compareTo, countTrackers, dumpTrackers, equals, freeUnusedObjects, hasAssignedNativeObject, hashCode, nativeId, reassignNativeId, setNativeIdNotTracked, unassignNativeObject

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

logger2

public static final java.util.logging.Logger logger2

message logger for this class

Constructor Detail

MultiSphere

public MultiSphere(float radius)

Instantiate a centered sphere shape with the specified radius.

Parameters:

radius - the desired radius (in shape units, ≥0)

MultiSphere

public MultiSphere(float radius,
                   float height)

Instantiate a centered Y-axis capsule shape with the specified radius and height.

Parameters:

radius - the desired radius (in shape units, ≥0)

height - the desired height of the cylindrical portion (in shape units, ≥0)

MultiSphere

public MultiSphere(float radius,
                   float height,
                   int axisIndex)

Instantiate a centered capsule shape with the specified radius, height, and axis.

Parameters:

radius - the desired radius (in shape units, ≥0)

height - the desired height of the cylindrical portion (in shape units, ≥0)

axisIndex - which local axis to use for the height: 0→X, 1→Y, 2→Z

MultiSphere

public MultiSphere(java.util.List<Vector3f> centers,
                   java.util.List<java.lang.Float> radii)

Instantiate a multi-sphere shape with the specified centers and radii.

Parameters:

centers - the list of center locations (in shape coordinates, not null, not empty)

radii - the list of radii (in shape units, not null, not empty, each ≥0)

MultiSphere

public MultiSphere(RectangularSolid rectangularSolid)

Instantiate a 4-sphere shape to fill the specified RectangularSolid. The spheres will be of equal size, arranged in a rectangle.

Parameters:

rectangularSolid - the solid on which to base the shape (not null)

MultiSphere

public MultiSphere(Vector3f center,
                   float radius)

Instantiate an eccentric sphere shape with the specified center and radius.

Parameters:

center - the location of the sphere's center (in shape coordinates, not null, unaffected)

radius - the desired radius (in shape units, ≥0)

MultiSphere

public MultiSphere(Vector3f[] centers,
                   float... radii)

Instantiate a multi-sphere shape with the specified centers and radii.

Parameters:

centers - the array of center locations (in shape coordinates, not null, not empty)

radii - the array of radii (in shape units, not null, not empty, each ≥0)

Method Detail

copyCenter

public Vector3f copyCenter(int sphereIndex,
                           Vector3f storeResult)

Copy the location of the center of the indexed sphere.

Parameters:

sphereIndex - which sphere to read (≥0)

storeResult - storage for the result (modified if not null)

Returns:

the center location (in shape coordinates, either storeResult or a new instance, not null)

countSpheres

public int countSpheres()

Count the spheres in the shape.

Returns:

the count (>0)

getRadius

public float getRadius(int sphereIndex)

Return the radius of the indexed sphere.

Parameters:

sphereIndex - which sphere to read (≥0)

Returns:

the unscaled radius (≥0)

recalculateAabb

protected void recalculateAabb()

Recalculate the shape's bounding box if necessary.

Overrides:

recalculateAabb in class CollisionShape

scaledVolume

public float scaledVolume()

Estimate the volume of the shape, including scale and margin.

Overrides:

scaledVolume in class ConvexShape

Returns:

the volume (in physics-space units cubed, ≥0)

toHullShape

public HullCollisionShape toHullShape()

Approximate this shape with a HullCollisionShape.

Overrides:

toHullShape in class ConvexShape

Returns:

a new shape