atavism.server.objects
Class ObjectTracker

java.lang.Object
  atavism.server.objects.ObjectTracker

All Implemented Interfaces:

MessageCallback, MessageDispatch

public class ObjectTracker
extends java.lang.Object
implements MessageCallback, MessageDispatch

Nested Class Summary

protected class	ObjectTracker.Entry
static class	ObjectTracker.NotifyAggroRadiusMessage
protected class	ObjectTracker.NotifyData
static interface	ObjectTracker.NotifyReactionRadiusCallback
static class	ObjectTracker.NotifyReactionRadiusMessage
static interface	ObjectTracker.RemoteObjectFilter A filter callback used to determine if a remote object should be tracked.
static class	ObjectTracker.TrackerFilter

Field Summary

protected EntityWithWorldNodeFactory	entityFactory
protected float	hystericalMargin
protected OID	instanceOid
protected java.util.Set<OID>	localObjects Local objects are perceivers; remote objects are the objects that are perceived by perceivers
protected java.util.concurrent.locks.Lock	lock
static MessageType	MSG_TYPE_NOTIFY_AGGRO_RADIUS
static MessageType	MSG_TYPE_NOTIFY_REACTION_RADIUS
protected Namespace	namespace
protected ObjectTracker.NotifyReactionRadiusCallback	notifyCallback
protected ObjectTracker.TrackerFilter	perceptionFilter
protected long	perceptionSubId
protected java.util.Map<OID,ObjectTracker.NotifyData>	reactionRadiusMap
protected ObjectTracker.RemoteObjectFilter	remoteObjectFilter
protected java.util.Map<OID,ObjectTracker.Entry>	trackMap

Fields inherited from interface atavism.msgsys.MessageCallback

NO_FLAGS, RESPONSE_EXPECTED

Constructor Summary

ObjectTracker(Namespace namespace, OID oid, EntityWithWorldNodeFactory entityFactory, java.util.Collection<ObjectType> subjectTypes)

ObjectTracker(Namespace namespace, OID instanceOid, EntityWithWorldNodeFactory entityFactory, float hystericalMargin, ObjectTracker.NotifyReactionRadiusCallback notifyCallback, ObjectTracker.RemoteObjectFilter remoteObjectFilter)

Method Summary

void	addAggroRadius(OID oid, OID target, java.lang.Integer reactionRadius)
void	addLocalObject(OID oid, java.lang.Integer reactionRadius)
void	addReactionRadius(OID oid, java.lang.Integer reactionRadius)
void	dispatchMessage(Message message, int flags, MessageCallback callback) Dispatch message to queue or thread pool.
OID	getInstanceOid()
java.util.List<OID>	getOidsInRadius(OID oid)
void	handleMessage(Message msg, int flags) Handle message.
protected void	handlePerception(PerceptionMessage perceptionMessage)
boolean	hasLocalObject(java.lang.Long oid)
protected boolean	maybeAddRemoteObject(PerceptionMessage.ObjectNote objectNote)
protected void	maybeRemoveRemoteObject(OID subjectOid, PerceptionMessage.ObjectNote objectNote, OID targetOid)
void	removeAggroRadius(OID oid, OID target)
boolean	removeLocalObject(OID oid)
void	removeReactionRadius(OID oid)
protected boolean	removeRemoteObject(OID objOid, OID oid, java.util.List<OID> trackersToRemove)
void	updateEntity(EntityWithWorldNode ewwn) Checks the distance between the tracker and the entity in question to determine whether they are entering or leaving the reaction or aggro radius.

Methods inherited from class java.lang.Object

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

Field Detail

namespace

protected Namespace namespace

instanceOid

protected OID instanceOid

entityFactory

protected EntityWithWorldNodeFactory entityFactory

hystericalMargin

protected float hystericalMargin

notifyCallback

protected ObjectTracker.NotifyReactionRadiusCallback notifyCallback

remoteObjectFilter

protected ObjectTracker.RemoteObjectFilter remoteObjectFilter

localObjects

protected java.util.Set<OID> localObjects

Local objects are perceivers; remote objects are the objects that are perceived by perceivers

trackMap

protected java.util.Map<OID,ObjectTracker.Entry> trackMap

reactionRadiusMap

protected java.util.Map<OID,ObjectTracker.NotifyData> reactionRadiusMap

perceptionFilter

protected ObjectTracker.TrackerFilter perceptionFilter

perceptionSubId

protected long perceptionSubId

lock

protected java.util.concurrent.locks.Lock lock

MSG_TYPE_NOTIFY_REACTION_RADIUS

public static final MessageType MSG_TYPE_NOTIFY_REACTION_RADIUS

MSG_TYPE_NOTIFY_AGGRO_RADIUS

public static final MessageType MSG_TYPE_NOTIFY_AGGRO_RADIUS

Constructor Detail

ObjectTracker

public ObjectTracker(Namespace namespace,
                     OID oid,
                     EntityWithWorldNodeFactory entityFactory,
                     java.util.Collection<ObjectType> subjectTypes)

ObjectTracker

public ObjectTracker(Namespace namespace,
                     OID instanceOid,
                     EntityWithWorldNodeFactory entityFactory,
                     float hystericalMargin,
                     ObjectTracker.NotifyReactionRadiusCallback notifyCallback,
                     ObjectTracker.RemoteObjectFilter remoteObjectFilter)

Method Detail

getInstanceOid

public OID getInstanceOid()

addLocalObject

public void addLocalObject(OID oid,
                           java.lang.Integer reactionRadius)

hasLocalObject

public boolean hasLocalObject(java.lang.Long oid)

addReactionRadius

public void addReactionRadius(OID oid,
                              java.lang.Integer reactionRadius)

addAggroRadius

public void addAggroRadius(OID oid,
                           OID target,
                           java.lang.Integer reactionRadius)

removeReactionRadius

public void removeReactionRadius(OID oid)

removeAggroRadius

public void removeAggroRadius(OID oid,
                              OID target)

removeLocalObject

public boolean removeLocalObject(OID oid)

maybeAddRemoteObject

protected boolean maybeAddRemoteObject(PerceptionMessage.ObjectNote objectNote)

getOidsInRadius

public java.util.List<OID> getOidsInRadius(OID oid)

removeRemoteObject

protected boolean removeRemoteObject(OID objOid,
                                     OID oid,
                                     java.util.List<OID> trackersToRemove)

updateEntity

public void updateEntity(EntityWithWorldNode ewwn)

Checks the distance between the tracker and the entity in question to determine whether they are entering or leaving the reaction or aggro radius. Iterates through each reactionRadiusMap entry to determine if the moving creature has is listed.

Parameters:

ewwn -

dispatchMessage

public void dispatchMessage(Message message,
                            int flags,
                            MessageCallback callback)

Description copied from interface: MessageDispatch

Dispatch message to queue or thread pool. Implementations should pass the flags through unaltered.

Specified by:

dispatchMessage in interface MessageDispatch

Parameters:

message - Message sent from other agent.

flags - Bitwise OR of MessageCallback.NO_FLAGS, MessageCallback.RESPONSE_EXPECTED

callback - Callback to handle the message (currently, always the same as 'this').

handlePerception

protected void handlePerception(PerceptionMessage perceptionMessage)

maybeRemoveRemoteObject

protected void maybeRemoveRemoteObject(OID subjectOid,
                                       PerceptionMessage.ObjectNote objectNote,
                                       OID targetOid)

handleMessage

public void handleMessage(Message msg,
                          int flags)

Description copied from interface: MessageCallback

Handle message.

Specified by:

handleMessage in interface MessageCallback

Parameters:

msg - Message sent from other agent.

flags - Bitwise OR of MessageCallback.NO_FLAGS, MessageCallback.RESPONSE_EXPECTED.