edu.cmu.emulator.world
Class RelSpatialAttribute

java.lang.Object
  edu.cmu.emulator.world.RelSpatialAttribute

Direct Known Subclasses:

RelMatrix, RelVector

public abstract class RelSpatialAttribute
extends Object

RelSpatialAttribute is the abstract parent of all spatial attribute classes. Spatial attributes are relative in order to support the nesting of object reference frames.

Users do not set spatial attributes directly, but invoke code such as MovableObject's navigation code. Users may, however, register with a spatial attribute to receive updates whenever it changes in a specified way.

Field Summary

protected ArrayList	children
private static boolean	debugListeners
protected GroupWorker	groupWorker
protected int	id
protected ListenerManager	listenerManager
protected ArrayList	listeners
protected MovableObject	mObject
protected RelSpatialAttribute	parent

Constructor Summary

protected	RelSpatialAttribute(MovableObject mObject, GroupWorker groupWorker)
protected	RelSpatialAttribute(MovableObject mObject, RelSpatialAttribute parent, GroupWorker groupWorker)

Method Summary

void	addChild(RelSpatialAttribute child)
void	addListener(RSAListener listener, int threadMode, double triggerMagnitude, int relAbsMode)
void	addListener(RSAListener listener, int threadMode, long triggerInterval)
void	addListener(RSAListener listener, int threadMode, long triggerInterval, double triggerMagnitude, int relAbsMode)
void	addListener(RSAListener listener, long triggerInterval, double triggerMagnitude)
void	addListener(RSAListener listener, long triggerInterval, double triggerMagnitude, int relAbsMode)
protected abstract double	calcChangeMagnitude(Object v0, Object v1)
abstract Object	getAbsValue()
RelSpatialAttribute	getChild(int index)
int	getID()
int	getNumChildren()
MovableObject	getObject()
RelSpatialAttribute	getParent()
abstract Object	getRelValue()
protected void	notifyChildren(long timeMillis)
protected void	notifyListeners(long timeMillis)
void	removeChild(RelSpatialAttribute child)
void	removeListener(RSAListener listener)
void	setID(int id)
void	setParent(RelSpatialAttribute newParent)

Methods inherited from class java.lang.Object

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

Field Detail

listeners

protected ArrayList listeners

groupWorker

protected GroupWorker groupWorker

mObject

protected MovableObject mObject

parent

protected RelSpatialAttribute parent

children

protected ArrayList children

listenerManager

protected ListenerManager listenerManager

id

protected int id

debugListeners

private static final boolean debugListeners

See Also:

Constant Field Values

Constructor Detail

RelSpatialAttribute

protected RelSpatialAttribute(MovableObject mObject,
                              GroupWorker groupWorker)

RelSpatialAttribute

protected RelSpatialAttribute(MovableObject mObject,
                              RelSpatialAttribute parent,
                              GroupWorker groupWorker)

Method Detail

setID

public void setID(int id)

getID

public int getID()

getObject

public MovableObject getObject()

setParent

public void setParent(RelSpatialAttribute newParent)

getParent

public RelSpatialAttribute getParent()

addChild

public void addChild(RelSpatialAttribute child)

removeChild

public void removeChild(RelSpatialAttribute child)

getNumChildren

public int getNumChildren()

getChild

public RelSpatialAttribute getChild(int index)

getRelValue

public abstract Object getRelValue()

getAbsValue

public abstract Object getAbsValue()

addListener

public void addListener(RSAListener listener,
                        long triggerInterval,
                        double triggerMagnitude)

addListener

public void addListener(RSAListener listener,
                        long triggerInterval,
                        double triggerMagnitude,
                        int relAbsMode)

addListener

public void addListener(RSAListener listener,
                        int threadMode,
                        long triggerInterval)

addListener

public void addListener(RSAListener listener,
                        int threadMode,
                        double triggerMagnitude,
                        int relAbsMode)

addListener

public void addListener(RSAListener listener,
                        int threadMode,
                        long triggerInterval,
                        double triggerMagnitude,
                        int relAbsMode)

removeListener

public void removeListener(RSAListener listener)

notifyListeners

protected void notifyListeners(long timeMillis)

calcChangeMagnitude

protected abstract double calcChangeMagnitude(Object v0,
                                              Object v1)

notifyChildren

protected void notifyChildren(long timeMillis)