jfreerails.world.common
Class FreerailsPathIteratorImpl

java.lang.Object
  jfreerails.world.common.FreerailsPathIteratorImpl

All Implemented Interfaces:

java.io.Serializable, FreerailsMutableSerializable, FreerailsPathIterator

public class FreerailsPathIteratorImpl
extends java.lang.Object
implements FreerailsPathIterator

Lets the caller access a series of Points as a series of IntLines.

Author:

Luke Lindsay

See Also:

Serialized Form

Field Summary

private boolean	forwards
private java.util.List<java.awt.Point>	points
private int	position
private static long	serialVersionUID

Constructor Summary

FreerailsPathIteratorImpl(java.util.List<java.awt.Point> l, boolean f)
Creates new FreerailsPathIteratorImpl

Method Summary

static FreerailsPathIterator	backwardsIterator(java.util.List<java.awt.Point> l)
static FreerailsPathIterator	forwardsIterator(java.util.List<java.awt.Point> l)
boolean	hasNext() Tests whether the path has another segment.
void	nextSegment(IntLine line) Gets the next segment of the path and places its coordinates in the specified IntLine; then moves the iterator forwards by one path segment.

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

forwards

private final boolean forwards

position

private int position

points

private final java.util.List<java.awt.Point> points

Constructor Detail

FreerailsPathIteratorImpl

public FreerailsPathIteratorImpl(java.util.List<java.awt.Point> l,
                                 boolean f)

Creates new FreerailsPathIteratorImpl

Method Detail

forwardsIterator

public static FreerailsPathIterator forwardsIterator(java.util.List<java.awt.Point> l)

backwardsIterator

public static FreerailsPathIterator backwardsIterator(java.util.List<java.awt.Point> l)

hasNext

public boolean hasNext()

Description copied from interface: FreerailsPathIterator

Tests whether the path has another segment.

Specified by:

hasNext in interface FreerailsPathIterator

nextSegment

public void nextSegment(IntLine line)

Description copied from interface: FreerailsPathIterator

Gets the next segment of the path and places its coordinates in the specified IntLine; then moves the iterator forwards by one path segment. (The coordinates are placed the passed-in IntLine rather than a new object to avoid the cost of object creation.)

Specified by:

nextSegment in interface FreerailsPathIterator