jfreerails.move
Class UndoMove

java.lang.Object
  jfreerails.move.UndoMove

All Implemented Interfaces:

java.io.Serializable, Move, FreerailsSerializable

public class UndoMove
extends java.lang.Object
implements Move

Undoes the Move passed to its constructor.

Author:

luke

See Also:

Serialized Form

Field Summary

private Move	move2undo
private static long	serialVersionUID

Constructor Summary

UndoMove(Move move)

Method Summary

MoveStatus	doMove(World w, FreerailsPrincipal p) Executes this move on the specifed world object.
boolean	equals(java.lang.Object o)
Move	getUndoneMove()
int	hashCode()
MoveStatus	tryDoMove(World w, FreerailsPrincipal p) Tests whether this Move can be executed on the specifed world object, this method should leave the world object unchanged.
MoveStatus	tryUndoMove(World w, FreerailsPrincipal p) Tests whether this Move can be undone on the specifed world object, this method should leave the world object unchanged.
MoveStatus	undoMove(World w, FreerailsPrincipal p) If doMove has just been executed on the specified world object, calling this method changes the state of the world object back to how it was before doMove was called.

Methods inherited from class java.lang.Object

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

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

move2undo

private Move move2undo

Constructor Detail

UndoMove

public UndoMove(Move move)

Parameters:

move - The move that was undone

Method Detail

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

tryDoMove

public MoveStatus tryDoMove(World w,
                            FreerailsPrincipal p)

Description copied from interface: Move

Tests whether this Move can be executed on the specifed world object, this method should leave the world object unchanged.

Specified by:

tryDoMove in interface Move

tryUndoMove

public MoveStatus tryUndoMove(World w,
                              FreerailsPrincipal p)

Description copied from interface: Move

Tests whether this Move can be undone on the specifed world object, this method should leave the world object unchanged.

Specified by:

tryUndoMove in interface Move

doMove

public MoveStatus doMove(World w,
                         FreerailsPrincipal p)

Description copied from interface: Move

Executes this move on the specifed world object.

Specified by:

doMove in interface Move

undoMove

public MoveStatus undoMove(World w,
                           FreerailsPrincipal p)

Description copied from interface: Move

If doMove has just been executed on the specified world object, calling this method changes the state of the world object back to how it was before doMove was called.

Specified by:

undoMove in interface Move

getUndoneMove

public Move getUndoneMove()