Package ch.sahits.game.openpatrician.engine.sea

Class LocationTracker

java.lang.Object

ch.sahits.game.openpatrician.engine.sea.LocationTracker

All Implemented Interfaces:

ILocationTracker

@Component
@Lazy
public class LocationTracker
extends java.lang.Object
implements ILocationTracker

Component that helps split up the amount of ships into segements of the navigable map. This reduces the omount of ships that need to be checked if a ship nearby is searched.

Author:

Andi Hotz, (c) Sahits GmbH, 2015 Created on Dec 13, 2015

Field Summary

Fields

Modifier and Type	Field	Description
private AIPlayerList	aiPlayers
private com.google.common.eventbus.AsyncEventBus	clientServerEventBus
private static org.slf4j.Logger	LOGGER
private IMap	map
private javafx.geometry.Dimension2D	mapDimension
private PlayerList	players
protected com.google.common.collect.Interner<javafx.geometry.Point2D>	pointInterner
private double	segmentEdgeHeigth
private double	segmentEdgeWidth
private java.util.List<java.lang.ref.WeakReference<INavigableVessel>>[][]	segments
private com.google.common.eventbus.EventBus	syncServerClientEventBus

Constructor Summary

Constructors

Constructor	Description
LocationTracker()

Method Summary

Modifier and Type	Method	Description
void	add(INavigableVessel ship)	Add a shipt to the location tracker.
(package private) int[]	calculateIndices(javafx.geometry.Point2D location)
(package private) int[]	calculateRowsAndColumnsNeeded(int numberOfImages, javafx.geometry.Dimension2D containerSize)	Calculate the number of segments the image is partitioned into
private javafx.geometry.Point2D	getPointOnMap(double x, double y)	Ensure that the point is on the map.
java.util.List<INavigableVessel>	getShipsInSegment(javafx.geometry.Point2D location)
java.util.List<INavigableVessel>	getShipsInSegments(javafx.geometry.Point2D location, int radius)
void	handleGameLoad(GameStateChange gameStateChange)
void	handleShipMove(ShipPositionUpdateEvent event)
(package private) void	initialize()
void	remove(INavigableVessel ship)
private void	unregister()
void	updateSegmentSize(int nbShips)

Methods inherited from class java.lang.Object

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

Field Detail

LOGGER

private static final org.slf4j.Logger LOGGER

map

@Autowired
private IMap map

clientServerEventBus

@Autowired
@Qualifier("serverClientEventBus")
private com.google.common.eventbus.AsyncEventBus clientServerEventBus

syncServerClientEventBus

@Autowired
@Qualifier("syncServerClientEventBus")
private com.google.common.eventbus.EventBus syncServerClientEventBus

pointInterner

@Autowired
protected com.google.common.collect.Interner<javafx.geometry.Point2D> pointInterner

aiPlayers

@Autowired
private AIPlayerList aiPlayers

players

@Autowired
private PlayerList players

mapDimension

private javafx.geometry.Dimension2D mapDimension

segmentEdgeWidth

private double segmentEdgeWidth

segmentEdgeHeigth

private double segmentEdgeHeigth

segments

private java.util.List<java.lang.ref.WeakReference<INavigableVessel>>[][] segments

Constructor Detail

LocationTracker

public LocationTracker()

Method Detail

initialize

@PostConstruct
void initialize()

unregister

@PreDestroy
private void unregister()

updateSegmentSize

public void updateSegmentSize(int nbShips)

calculateIndices

int[] calculateIndices(javafx.geometry.Point2D location)

add

public void add(INavigableVessel ship)

Description copied from interface: ILocationTracker

Add a shipt to the location tracker.

Specified by:

add in interface ILocationTracker

Parameters:

ship - to be added.

remove

public void remove(INavigableVessel ship)

getShipsInSegment

public java.util.List<INavigableVessel> getShipsInSegment(javafx.geometry.Point2D location)

getShipsInSegments

public java.util.List<INavigableVessel> getShipsInSegments(javafx.geometry.Point2D location,
                                                           int radius)

getPointOnMap

private javafx.geometry.Point2D getPointOnMap(double x,
                                              double y)

Ensure that the point is on the map.

Parameters:

x - coordinate on the map

y - coordinate on the map

Returns:

Point representing the point on the map.

handleShipMove

public void handleShipMove(ShipPositionUpdateEvent event)

calculateRowsAndColumnsNeeded

int[] calculateRowsAndColumnsNeeded(int numberOfImages,
                                    javafx.geometry.Dimension2D containerSize)

Calculate the number of segments the image is partitioned into

Parameters:

numberOfImages - target number of segments

containerSize - dimension of the image

Returns:

array of length: index 0: nbRows, index 1: nbCols

handleGameLoad

public void handleGameLoad(GameStateChange gameStateChange)