fi.utu.cs.physics
Class Universe.CollisionNotification

java.lang.Object
  |
  +--fi.utu.cs.physics.Universe.CollisionNotification

Enclosing class:

Universe

public class Universe.CollisionNotification

extends java.lang.Object

Comprises two Body objects that have been counterparts in a collision. The Universe class, which is inherited from Observable, submits an instance of this class to its observers whenever two bodies collide.

See Also:

Observable.notifyObservers(Object), Observer.update(Observable,Object)

Field Summary

static int	BOTH Both of the counterparts.
static int	FIRST The first counterpart.
static int	NONE None of the counterparts.
static int	SECOND The second counterpart.

Constructor Summary

Universe.CollisionNotification(Body b1, Body b2)
Creates a notification for the bodies b1 and b2

Method Summary

int	counterpart(java.lang.Class t) Returns which of the counterparts is of the type t.
Body	getCounterpart(int i) Returns the ith counterpart of the collision.

Methods inherited from class java.lang.Object

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

Field Detail

NONE

public static final int NONE

None of the counterparts.

FIRST

public static final int FIRST

The first counterpart.

SECOND

public static final int SECOND

The second counterpart.

BOTH

public static final int BOTH

Both of the counterparts.

Constructor Detail

Universe.CollisionNotification

public Universe.CollisionNotification(Body b1,
                                      Body b2)

Creates a notification for the bodies b1 and b2

Method Detail

getCounterpart

public Body getCounterpart(int i)

Returns the ith counterpart of the collision.

See Also:

FIRST, SECOND

counterpart

public int counterpart(java.lang.Class t)

Returns which of the counterparts is of the type t.

See Also:

NONE, FIRST, SECOND, BOTH