jfreerails.server
Class TrainPathFinder

java.lang.Object
  jfreerails.server.TrainPathFinder

All Implemented Interfaces:

java.io.Serializable, ServerAutomaton, FreerailsIntIterator

public class TrainPathFinder
extends java.lang.Object
implements FreerailsIntIterator, ServerAutomaton

This class provides methods that generate a path to a target as a series of PositionOnTrack objects encoded as ints, it also deals with stops at stations.

Author:

Luke Lindsay 28-Nov-2002

See Also:

Serialized Form

Field Summary

private MoveReceiver	mr
private SimpleAStarPathFinder	pathFinder
private FreerailsPrincipal	principal
private static long	serialVersionUID
private TrainStopsHandler	stopsHandler
private FlatTrackExplorer	trackExplorer
private int	trainId
(package private) ReadOnlyWorld	w

Constructor Summary

TrainPathFinder(FlatTrackExplorer tx, ReadOnlyWorld w, int trainNumber, MoveReceiver newMr, FreerailsPrincipal p)

Method Summary

boolean	hasNextInt()
void	initAutomaton(MoveReceiver newMr) Initializes the automaton with a connection to the MoveExecuter.
(package private) boolean	isTrainMoving()
int	nextInt()

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

pathFinder

private final SimpleAStarPathFinder pathFinder

principal

private final FreerailsPrincipal principal

stopsHandler

private final TrainStopsHandler stopsHandler

trackExplorer

private final FlatTrackExplorer trackExplorer

trainId

private final int trainId

mr

private transient MoveReceiver mr

w

ReadOnlyWorld w

Constructor Detail

TrainPathFinder

public TrainPathFinder(FlatTrackExplorer tx,
                       ReadOnlyWorld w,
                       int trainNumber,
                       MoveReceiver newMr,
                       FreerailsPrincipal p)

Method Detail

hasNextInt

public boolean hasNextInt()

Specified by:

hasNextInt in interface FreerailsIntIterator

initAutomaton

public void initAutomaton(MoveReceiver newMr)

Description copied from interface: ServerAutomaton

Initializes the automaton with a connection to the MoveExecuter.

Specified by:

initAutomaton in interface ServerAutomaton

isTrainMoving

boolean isTrainMoving()

nextInt

public int nextInt()

Specified by:

nextInt in interface FreerailsIntIterator

Returns:

a PositionOnTrack packed into an int