Class LRPiece

java.lang.Object

Piece

LRPiece

public class LRPiece
extends Piece

LRPiece - An abstract class for a Railroad Rush Hour puzzle piece that can move left and right.

Field Summary

Fields inherited from class Piece

board, displayChar, leftCol, size, topRow

Constructor Summary

Constructors

Constructor and Description
LRPiece(char[][] board, char displayChar, int size, int topRow, int leftCol) Call the superclass (Piece) constructor with the same parameters.

Method Summary

Modifier and Type	Method and Description
boolean	canMoveDir(Direction d) Return whether or not the piece is, in general, permitted to move in the given direction.
int	getBottomRow() Return the row of the piece's bottom right corner.
int	getRightCol() Return the column of the piece's bottom right corner.

Methods inherited from class Piece

getLeftCol, getTopRow, toString, tryMove

Methods inherited from class java.lang.Object

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

Constructor Detail

LRPiece

public LRPiece(char[][] board,
               char displayChar,
               int size,
               int topRow,
               int leftCol)

Call the superclass (Piece) constructor with the same parameters.

Parameters:

board - a reference to the RandomRailroadRushHour char[][] board object common to all pieces

displayChar - the character used to "paint" the piece on the board representation

size - the size of the piece. For up/down- or left/right-moving train pieces (with width 1), this is the piece length in grid squares. For left/right/up/down-moving platform pieces, this is the size length in grid squares.

topRow - the row of the piece's top left corner

leftCol - the column of the piece's top left corner

Method Detail

getBottomRow

public int getBottomRow()

Description copied from class: Piece

Return the row of the piece's bottom right corner.

Specified by:

getBottomRow in class Piece

Returns:

the row of the piece's bottom right corner

getRightCol

public int getRightCol()

Description copied from class: Piece

Return the column of the piece's bottom right corner.

Specified by:

getRightCol in class Piece

Returns:

the column of the piece's bottom right corner

canMoveDir

public boolean canMoveDir(Direction d)

Description copied from class: Piece

Return whether or not the piece is, in general, permitted to move in the given direction. Note that this method should be _overridden_ for some piece types.

Overrides:

canMoveDir in class Piece

Parameters:

d - given direction of movement

Returns:

whether or not the piece is, in general, permitted to move in the given direction.