javax.media.j3d

Class WakeupOnCollisionEntry

java.lang.Object

javax.media.j3d.WakeupCondition

javax.media.j3d.WakeupCriterion

javax.media.j3d.WakeupOnCollisionEntry

public final class WakeupOnCollisionEntry
extends WakeupCriterion

Class specifying a wakeup when the specified object collides with any other object in the scene graph.

Field Summary

Fields

Modifier and Type	Field and Description
static int	USE_BOUNDS Use geometric bounds as an approximation in computing collisions.
static int	USE_GEOMETRY Use geometry in computing collisions.

Constructor Summary

Constructors

Constructor and Description
WakeupOnCollisionEntry(Bounds armingBounds) Constructs a new WakeupOnCollisionEntry criterion.
WakeupOnCollisionEntry(Node armingNode) Constructs a new WakeupOnCollisionEntry criterion.
WakeupOnCollisionEntry(Node armingNode, int speedHint) Constructs a new WakeupOnCollisionEntry criterion.
WakeupOnCollisionEntry(SceneGraphPath armingPath) Constructs a new WakeupOnCollisionEntry criterion with USE_BOUNDS for a speed hint.
WakeupOnCollisionEntry(SceneGraphPath armingPath, int speedHint) Constructs a new WakeupOnCollisionEntry criterion.

Method Summary

Methods

Modifier and Type	Method and Description
Bounds	getArmingBounds() Returns the bounds object used in specifying the collision condition.
SceneGraphPath	getArmingPath() Returns the path used in specifying the collision condition.
Bounds	getTriggeringBounds() Retrieves the Bounds object that caused the collision
SceneGraphPath	getTriggeringPath() Retrieves the path describing the object causing the collision.

Methods inherited from class javax.media.j3d.WakeupCriterion

hasTriggered

Methods inherited from class javax.media.j3d.WakeupCondition

allElements, triggeredElements

Methods inherited from class java.lang.Object

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

Field Detail

USE_GEOMETRY

public static final int USE_GEOMETRY

Use geometry in computing collisions.

See Also:

Constant Field Values

USE_BOUNDS

public static final int USE_BOUNDS

Use geometric bounds as an approximation in computing collisions.

See Also:

Constant Field Values

Constructor Detail

WakeupOnCollisionEntry

public WakeupOnCollisionEntry(SceneGraphPath armingPath)

Constructs a new WakeupOnCollisionEntry criterion with USE_BOUNDS for a speed hint.

Parameters:

armingPath - the path used to arm collision detection

Throws:

IllegalArgumentException - if object associated with the SceneGraphPath is other than a Group, Shape3D, Morph, or BoundingLeaf node.

WakeupOnCollisionEntry

public WakeupOnCollisionEntry(SceneGraphPath armingPath,
                      int speedHint)

Constructs a new WakeupOnCollisionEntry criterion.

Parameters:

armingPath - the path used to arm collision detection

speedHint - one of USE_GEOMETRY or USE_BOUNDS, specifies how accurately Java 3D will perform collision detection

Throws:

IllegalArgumentException - if hint is not one of USE_GEOMETRY or USE_BOUNDS.

IllegalArgumentException - if object associated with the SceneGraphPath is other than a Group, Shape3D, Morph, or BoundingLeaf node.

WakeupOnCollisionEntry

public WakeupOnCollisionEntry(Node armingNode)

Constructs a new WakeupOnCollisionEntry criterion.

Parameters:

armingNode - the Group, Shape, or Morph node used to arm collision detection

Throws:

IllegalArgumentException - if object is under a SharedGroup node or object is other than a Group, Shape3D, Morph or BoundingLeaf node.

WakeupOnCollisionEntry

public WakeupOnCollisionEntry(Node armingNode,
                      int speedHint)

Constructs a new WakeupOnCollisionEntry criterion.

Parameters:

armingNode - the Group, Shape, or Morph node used to arm collision detection

speedHint - one of USE_GEOMETRY or USE_BOUNDS, specifies how accurately Java 3D will perform collision detection

Throws:

IllegalArgumentException - if hint is not one of USE_GEOMETRY or USE_BOUNDS.

IllegalArgumentException - if object is under a SharedGroup node or object is other than a Group, Shape3D, Morph or BoundingLeaf node.

WakeupOnCollisionEntry

public WakeupOnCollisionEntry(Bounds armingBounds)

Constructs a new WakeupOnCollisionEntry criterion.

Parameters:

armingBounds - the bounds object used to arm collision detection

Method Detail

getArmingPath

public SceneGraphPath getArmingPath()

Returns the path used in specifying the collision condition.

Returns:

the SceneGraphPath object generated when arming this criterion---null implies that a bounds object armed this criteria

getArmingBounds

public Bounds getArmingBounds()

Returns the bounds object used in specifying the collision condition.

Returns:

the Bounds object generated when arming this criterion---null implies that a SceneGraphPath armed this criteria

getTriggeringPath

public SceneGraphPath getTriggeringPath()

Retrieves the path describing the object causing the collision.

Returns:

the SceneGraphPath that describes the triggering object.

Throws:

IllegalStateException - if not called from within the a behavior's processStimulus method which was awoken by a collision.

getTriggeringBounds

public Bounds getTriggeringBounds()

Retrieves the Bounds object that caused the collision

Returns:

the colliding Bounds object.

Throws:

IllegalStateException - if not called from within the a behavior's processStimulus method which was awoken by a collision.