Raw translation of Java code into Python code.
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@ -17,477 +17,342 @@
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# Please share and enjoy!
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#
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/**
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* Container for the state of the checker board during a game.
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*
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* The size of the board is defined by the number of squares along one side,
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* since all checker boards are square. The board coordinate system has both
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* horizontal and vertical numeric components ranging from 0 to boardSize-1.
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* Depicted on-screen, the horizontal component extends to the right and the
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* vertical component extends downwards, making the upper left square (0, 0) and
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* the lower right square (boardSize-1, boardSize-1).
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*
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* <b>Navigating through the Board</b> Internally, the checker board is
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* organized as a two-dimensional array. So when iterating through the board,
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* you first specify the vertical component and then the horizontal component.
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* Another way of thinking about is first specifying which row you want to look
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* at from top to bottom. Then you specify how across the row you are looking at
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* from left to right.
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*
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* <b>Players Places</b> The light player (the starting player) starts at the
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* top of the board. The dark player starts at the bottom of the board.
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*
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* @author Dorian Pula
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* @author Ross Etchells
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*/
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public class Board {
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from enum import Enum
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/** Constant representing a dark king. */
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public static final int DARK_KING = 4;
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/** Constant representing a dark single man. */
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public static final int DARK_PAWN = 3;
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/** Constant representing an empty space. */
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public static final int EMPTY_SPACE = 0;
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// -- Constants ------------------------------------------------------------
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/**
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* Constant representing an illegal square. That is a white square in
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* checkers.
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*/
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public static final int ILLEGAL_SPACE = -1;
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/** Constant representing a light king. */
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public static final int LIGHT_KING = 2;
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/** Constant representing a light single man. */
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public static final int LIGHT_PAWN = 1;
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from justcheckers.game import rules
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// -- Object Fields --------------------------------------------------------
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/** Is the board mirrored or a regular checker board. */
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private final boolean amIMirrored;
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/**
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* Holds the positions of the pieces on the board.
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*/
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private final int[][] board;
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/** The size of the board. */
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private final int boardSize;
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/** A reference to the rules being used. */
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private final Rulebook myRules;
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class Square(Enum):
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"""Represents the state of a single square on a checkerboard."""
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WHITE = -1
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EMPTY = 0
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LIGHT_PAWN = 1
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LIGHT_KING = 2
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DARK_PAWN = 3
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DARK_KING = 4
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// -- Constructors ---------------------------------------------------------
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/**
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* Creates a new board for checkers.
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*
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* @param rules
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* The rules for this board.
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*/
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public Board(Rulebook rules) {
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this.myRules = rules;
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final int size = this.myRules.getBoardSize();
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this.board = new int[size][size];
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this.boardSize = size;
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this.amIMirrored = this.myRules.isBoardMirrored();
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}
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// -- Public Methods (Setting Up the Board) --------------------------------
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/**
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* Clears the board of pieces. Creates a brand new empty board already laid
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* out by the rules (regular or mirrored).
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*/
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public void clearBoard() {
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for (int row = 0; this.boardSize > row; row++) {
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for (int col = 0; this.boardSize > col; col++) {
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class Board(object):
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"""
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* Container for the state of the checker board during a game.
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*
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* The size of the board is defined by the number of squares along one side,
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* since all checker boards are square. The board coordinate system has both
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* horizontal and vertical numeric components ranging from 0 to boardSize-1.
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* Depicted on-screen, the horizontal component extends to the right and the
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* vertical component extends downwards, making the upper left square (0, 0) and
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* the lower right square (boardSize-1, boardSize-1).
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*
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* <b>Navigating through the Board</b> Internally, the checker board is
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* organized as a two-dimensional array. So when iterating through the board,
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* you first specify the vertical component and then the horizontal component.
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* Another way of thinking about is first specifying which row you want to look
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* at from top to bottom. Then you specify how across the row you are looking at
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* from left to right.
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*
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* <b>Players Places</b> The light player (the starting player) starts at the
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* top of the board. The dark player starts at the bottom of the board.
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*
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* @author Dorian Pula
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* @author Ross Etchells
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"""
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// Mirrored has opposite setup to a regular board.
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if (row % 2 == 0 && col % 2 == 0) {
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if (this.amIMirrored) {
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this.board[row][col] = Board.ILLEGAL_SPACE;
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} else {
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this.board[row][col] = Board.EMPTY_SPACE;
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}
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} else if (row % 2 == 0 && col % 2 == 1) {
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if (this.amIMirrored) {
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this.board[row][col] = Board.EMPTY_SPACE;
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} else {
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this.board[row][col] = Board.ILLEGAL_SPACE;
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}
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} else if (row % 2 == 1 && col % 2 == 0) {
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if (this.amIMirrored) {
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this.board[row][col] = Board.EMPTY_SPACE;
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} else {
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this.board[row][col] = Board.ILLEGAL_SPACE;
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}
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} else {
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if (this.amIMirrored) {
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this.board[row][col] = Board.ILLEGAL_SPACE;
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} else {
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this.board[row][col] = Board.EMPTY_SPACE;
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}
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}
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def __init__(self, size=rules.Rules.STANDARD_BOARD_SIZE, mirrored=False):
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self.board_size = size
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self._board = [[]]
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}
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}
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}
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# /**
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# * Clears the board of pieces. Creates a brand new empty board already laid
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# * out by the rules (regular or mirrored).
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# */
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for row in xrange(0, size):
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for col in xrange(0, size):
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// -- Get/Set Methods ------------------------------------------------------
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/**
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* Gets the size of the board. The board size is measured as the number of
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* squares down one side of the board.
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*
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* @return The size of the board.
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*/
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public int getBoardSize() {
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return this.boardSize;
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}
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# Mirrored has opposite setup to a regular board.
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if (row % 2 == 0) and (col % 2 == 0):
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if mirrored:
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self._board[row][col] = Square.WHITE
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else:
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self._board[row][col] = Square.EMPTY
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/**
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* Provides a reference to a 2 dimensional array representation of the
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* current board state. This is for use by the user interface. Each
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* dimension of the array extends from 0 to boardSize - 1. Note that the
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* referenced array is a clone of the internal board representation. Changes
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* made to the array will not affect the board state.
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*
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* @return A 2 dimensional array representing the current state of the
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* board.
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*/
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public int[][] getBoardState() {
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final int[][] repBoard = new int[this.boardSize][this.boardSize];
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System.arraycopy(this.board, 0, repBoard, 0, this.boardSize);
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return repBoard;
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}
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elif (row % 2 == 0) and (col % 2 == 1):
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if mirrored:
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self._board[row][col] = Square.EMPTY
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else:
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self._board[row][col] = Square.WHITE
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/**
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* Determines whether the piece at board coordinate (row, col) is dark. If
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* the coordinates do not exist on the board or are empty, this method will
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* return false.
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*
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* @param row
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* The row of the square.
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* @param col
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* The column of the square.
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* @return True if the piece at the specified coordinate is dark. False if
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* otherwise.
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*/
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public boolean isDark(int row, int col) {
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if (row >= 0 && row < this.boardSize && col >= 0
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&& col < this.boardSize) {
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return this.board[row][col] == Board.DARK_KING
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|| this.board[row][col] == Board.DARK_PAWN;
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}
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return false;
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}
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elif (row % 2 == 1) and (col % 2 == 0):
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if mirrored:
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self._board[row][col] = Square.EMPTY
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else:
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self._board[row][col] = Square.WHITE
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else:
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if mirrored:
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self._board[row][col] = Square.WHITE
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else:
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self._board[row][col] = Square.EMPTY
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/**
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* Determines whether the piece at board coordinate (row, col) is empty. If
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* the coordinates do not exist on the board or is illegal, this method will
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* return false.
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*
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* @param row
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* The row of the square.
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* @param col
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* The column of the square.
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* @return True if the piece at the specified coordinate is empty. False if
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* otherwise.
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*/
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public boolean isEmpty(int row, int col) {
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if (row >= 0 && row < this.boardSize && col >= 0
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&& col < this.boardSize) {
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return this.board[row][col] == Board.EMPTY_SPACE;
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}
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return false;
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}
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def is_inside_board(self, row, col):
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return (0 <= row < self.board_size) and (0 <= col < self.board_size)
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/**
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* Determines whether the board coordinate (x, y) is used in the game. In
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* most cases, all light spaces on the board will be considered illegal.
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* Also, any coordinate which does not exist is also considered illegal.
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*
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* @param row
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* The row of the square.
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* @param col
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* The column of the square.
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* @return True if the specified coordinate is nonexistent or unused in the
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* current rules. False if otherwise.
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*/
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public boolean isIllegalSpace(int row, int col) {
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if (row >= 0 && row < this.boardSize && col >= 0
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&& col < this.boardSize) {
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return this.board[row][col] == Board.ILLEGAL_SPACE;
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}
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return false;
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}
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def is_dark(self, row, col):
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"""
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/**
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* Determines whether the piece at board coordinate (row, col) is dark. If
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* the coordinates do not exist on the board or are empty, this method will
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* return false.
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*
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* @param row
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* The row of the square.
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* @param col
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* The column of the square.
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* @return True if the piece at the specified coordinate is dark. False if
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* otherwise.
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*/
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"""
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return self.is_inside_board(row, col) and self._board[row][col] in [Square.DARK_KING, Square.DARK_PAWN]
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/**
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* Determines whether the piece at board coordinate (row, col) is a king. If
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* the coordinates do not exist on the board or are empty, this method will
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* return false.
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*
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* @param row
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* The row of the square.
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* @param col
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* The column of the square.
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* @return True if the piece at the specified coordinate is a king. False if
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* otherwise.
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*/
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public boolean isKing(int row, int col) {
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if (row >= 0 && row < this.boardSize && col >= 0
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&& col < this.boardSize) {
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return this.board[row][col] == Board.LIGHT_KING
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|| this.board[row][col] == Board.DARK_KING;
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}
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return false;
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}
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def is_empty(self, row, col):
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"""
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/**
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* Determines whether the piece at board coordinate (row, col) is empty. If
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* the coordinates do not exist on the board or is illegal, this method will
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* return False.
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*
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* @param row
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* The row of the square.
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* @param col
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* The column of the square.
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* @return True if the piece at the specified coordinate is empty. False if
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* otherwise.
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*/
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"""
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return self.is_inside_board(row, col) and self._board[row][col] == Square.EMPTY
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/**
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* Returns if a position specified is legal. Returns true if the position is
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* on the board, and if the space is not an illegal white space. Returns
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* false otherwise.
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*
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* @param row
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* The row coordinate of the position.
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* @param col
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* The column coordinate of the position.
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* @return Returns true if the position is a legal playing position.
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*/
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public boolean isLegalPosition(int row, int col) {
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return row >= 0 && row < this.boardSize && col >= 0
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&& col < this.boardSize && !this.isIllegalSpace(row, col);
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}
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def is_illegal_space(self, row, col):
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"""
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/**
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* Determines whether the board coordinate (x, y) is used in the game. In
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* most cases, all light spaces on the board will be considered illegal.
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* Also, any coordinate which does not exist is also considered illegal.
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*
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* @param row
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* The row of the square.
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* @param col
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* The column of the square.
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* @return True if the specified coordinate is nonexistent or unused in the
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* current rules. False if otherwise.
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*/
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"""
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return self.is_inside_board(row, col) and self._board[row][col] == Square.WHITE
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/**
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* Determines whether the piece at board coordinate (row, col) is light. If
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* the coordinates do not exist on the board or are empty, this method will
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* return false.
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*
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* @param row
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* The row of the square.
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* @param col
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* The column of the square.
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* @return True if the piece at the specified coordinate is light. False if
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* otherwise.
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*/
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public boolean isLight(int row, int col) {
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if (row >= 0 && row < this.boardSize && col >= 0
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&& col < this.boardSize) {
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return this.board[row][col] == Board.LIGHT_KING
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|| this.board[row][col] == Board.LIGHT_PAWN;
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}
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return false;
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}
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# /**
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# * Determines whether the piece at board coordinate (row, col) is a king. If
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# * the coordinates do not exist on the board or are empty, this method will
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# * return False.
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# *
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# * @param row
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# * The row of the square.
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# * @param col
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# * The column of the square.
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# * @return True if the piece at the specified coordinate is a king. False if
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# * otherwise.
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# */
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def is_king(self, row, col):
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return self.is_inside_board(row, col) and self._board[row][col] in [Square.LIGHT_KING, Square.DARK_KING]
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/**
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* Determines whether the piece at board coordinate (row, col) is a pawn. If
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* the coordinates do not exist on the board or are empty, this method will
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* return false.
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*
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* @param row
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* The row of the square.
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* @param col
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* The column of the square.
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* @return True if the piece at the specified coordinate is a pawn. False if
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* otherwise.
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*/
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public boolean isPawn(int row, int col) {
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if (row >= 0 && row < this.boardSize && col >= 0
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&& col < this.boardSize) {
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return this.board[row][col] == Board.LIGHT_PAWN
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|| this.board[row][col] == Board.DARK_PAWN;
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}
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return false;
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}
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# /**
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# * Returns if a position specified is legal. Returns true if the position is
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# * on the board, and if the space is not an illegal white space. Returns
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# * False otherwise.
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# *
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# * @param row
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# * The row coordinate of the position.
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# * @param col
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# * The column coordinate of the position.
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# * @return Returns true if the position is a legal playing position.
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# */
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def is_legal_position(self, row, col):
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return self.is_inside_board(row, col) and not self.is_illegal_space(row, col)
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// -- Board Updating Methods -----------------------------------------------
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/**
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* Moves a pieces from one location to another. This method should be called
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* from the Game using this Board. This method does not check for rule
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* validity but does check for illegal white spaces. Also checks that the
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* destination position is empty.
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*
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* @param sourceRow
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* The row from where the piece is moving from.
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* @param sourceCol
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* The column from where the piece is moving from.
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* @param targetRow
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* The row to where the piece is moving to.
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* @param targetCol
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* The column to where the piece is moving to.
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*/
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protected void movePiece(int sourceRow, int sourceCol, int targetRow,
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int targetCol) {
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# /**
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# * Determines whether the piece at board coordinate (row, col) is light. If
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# * the coordinates do not exist on the board or are empty, this method will
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# * return False.
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# *
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# * @param row
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# * The row of the square.
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# * @param col
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# * The column of the square.
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# * @return True if the piece at the specified coordinate is light. False if
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# * otherwise.
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# */
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def is_light(self, row, col):
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return self.is_inside_board(row, col) and self._board[row][col] in [Square.LIGHT_KING, Square.LIGHT_PAWN]
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if (this.isLegalPosition(sourceRow, sourceCol)
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&& this.isLegalPosition(targetRow, targetCol)
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&& this.board[targetRow][targetCol] == Board.EMPTY_SPACE) {
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# /**
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# * Determines whether the piece at board coordinate (row, col) is a pawn. If
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# * the coordinates do not exist on the board or are empty, this method will
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# * return False.
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# *
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# * @param row
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# * The row of the square.
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# * @param col
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# * The column of the square.
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# * @return True if the piece at the specified coordinate is a pawn. False if
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# * otherwise.
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||||
# */
|
||||
def is_pawn(self, row, col):
|
||||
return self.is_inside_board(row, col) and self._board[row][col] in [Square.LIGHT_PAWN, Square.DARK_PAWN]
|
||||
|
||||
final int piece = this.board[sourceRow][sourceCol];
|
||||
this.board[targetRow][targetCol] = piece;
|
||||
this.board[sourceRow][sourceCol] = Board.EMPTY_SPACE;
|
||||
# /**
|
||||
# * Moves a pieces from one location to another. This method should be called
|
||||
# * from the Game using this Board. This method does not check for rule
|
||||
# * validity but does check for illegal white spaces. Also checks that the
|
||||
# * destination position is empty.
|
||||
# *
|
||||
# * @param sourceRow
|
||||
# * The row from where the piece is moving from.
|
||||
# * @param sourceCol
|
||||
# * The column from where the piece is moving from.
|
||||
# * @param targetRow
|
||||
# * The row to where the piece is moving to.
|
||||
# * @param targetCol
|
||||
# * The column to where the piece is moving to.
|
||||
# */
|
||||
def move_piece(self, source_row, source_col, target_row, target_col):
|
||||
|
||||
}
|
||||
}
|
||||
if (self.is_legal_position(source_row, source_col)
|
||||
and self.is_legal_position(target_row, target_col)
|
||||
and self._board[target_row][target_col] == Square.EMPTY):
|
||||
|
||||
/**
|
||||
* Removes a pieces from the specified location. This method should be
|
||||
* called from the Game using this Board. This method does not check for
|
||||
* rule validity but does check for illegal white spaces.
|
||||
*
|
||||
* @param row
|
||||
* The row where the piece is to be removed from.
|
||||
* @param col
|
||||
* The column where the piece is to be removed from.
|
||||
*/
|
||||
protected void removePiece(int row, int col) {
|
||||
self._board[source_row][source_col], self._board[target_row][target_col] = (
|
||||
Square.EMPTY, self._board[source_row][source_col])
|
||||
|
||||
if (this.isLegalPosition(row, col)) {
|
||||
this.board[row][col] = Board.EMPTY_SPACE;
|
||||
}
|
||||
}
|
||||
# /**
|
||||
# * Removes a pieces from the specified location. This method should be
|
||||
# * called from the Game using this Board. This method does not check for
|
||||
# * rule validity but does check for illegal white spaces.
|
||||
# *
|
||||
# * @param row
|
||||
# * The row where the piece is to be removed from.
|
||||
# * @param col
|
||||
# * The column where the piece is to be removed from.
|
||||
# */
|
||||
def remove_piece(self, row, col):
|
||||
if self.is_legal_position(row, col):
|
||||
self._board[row][col] = Square.EMPTY
|
||||
|
||||
/**
|
||||
* Setups the board for a new game. There are three different setups for the
|
||||
* three different types of boards:
|
||||
*
|
||||
* <table>
|
||||
* <tr>
|
||||
* <b>
|
||||
* <td>Name</td>
|
||||
* <td>Size</td>
|
||||
* <td>Number of Pieces Per Player</td>
|
||||
* <td>Number of Rows Per Player</td>
|
||||
* </b>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>Standard</td>
|
||||
* <td>8 x 8</td>
|
||||
* <td>12</td>
|
||||
* <td>3</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>International</td>
|
||||
* <td>10 x 10</td>
|
||||
* <td>20</td>
|
||||
* <td>4</td>
|
||||
* </tr>
|
||||
* <tr>
|
||||
* <td>Canadian</td>
|
||||
* <td>12 x 12</td>
|
||||
* <td>30</td>
|
||||
* <td>5</td>
|
||||
* </tr>
|
||||
* </table>
|
||||
*
|
||||
* The columns containing the players' tokens alternate between columns. The
|
||||
* dark player traditionally takes the first few upper rows (0-3). The light
|
||||
* player takes the last of the lower rows (5-7, 6-9 or 7-11).
|
||||
*
|
||||
* Note that the suicide checkers variant has a completely different setup,
|
||||
* and has a setup function of its own: setupNewSuicideGame().
|
||||
*/
|
||||
public void setupNewGame() {
|
||||
this.clearBoard();
|
||||
# /**
|
||||
# * Setups the board for a new game. There are three different setups for the
|
||||
# * three different types of boards:
|
||||
# *
|
||||
# * <table>
|
||||
# * <tr>
|
||||
# * <b>
|
||||
# * <td>Name</td>
|
||||
# * <td>Size</td>
|
||||
# * <td>Number of Pieces Per Player</td>
|
||||
# * <td>Number of Rows Per Player</td>
|
||||
# * </b>
|
||||
# * </tr>
|
||||
# * <tr>
|
||||
# * <td>Standard</td>
|
||||
# * <td>8 x 8</td>
|
||||
# * <td>12</td>
|
||||
# * <td>3</td>
|
||||
# * </tr>
|
||||
# * <tr>
|
||||
# * <td>International</td>
|
||||
# * <td>10 x 10</td>
|
||||
# * <td>20</td>
|
||||
# * <td>4</td>
|
||||
# * </tr>
|
||||
# * <tr>
|
||||
# * <td>Canadian</td>
|
||||
# * <td>12 x 12</td>
|
||||
# * <td>30</td>
|
||||
# * <td>5</td>
|
||||
# * </tr>
|
||||
# * </table>
|
||||
# *
|
||||
# * The columns containing the players' tokens alternate between columns. The
|
||||
# * dark player traditionally takes the first few upper rows (0-3). The light
|
||||
# * player takes the last of the lower rows (5-7, 6-9 or 7-11).
|
||||
# *
|
||||
# * Note that the suicide checkers variant has a completely different setup,
|
||||
# * and has a setup function of its own: setupNewSuicideGame().
|
||||
# */
|
||||
def setup_new_game(self):
|
||||
|
||||
if (this.myRules.getCheckersVariant() == Rulebook.SUICIDE_CHECKERS) {
|
||||
this.setupNewSuicideGame();
|
||||
} else {
|
||||
# Used to decide which rows to fill up.
|
||||
# Figure out the size of the board.
|
||||
if self.board_size == rules.InternationalRules.INTERNATIONAL_BOARD_SIZE:
|
||||
dark_player_bottom_row = 3
|
||||
light_player_top_row = 6
|
||||
elif self.board_size == rules.CanadianRules.CANADIAN_BOARD_SIZE:
|
||||
dark_player_bottom_row = 3
|
||||
light_player_top_row = 7
|
||||
else:
|
||||
# Default board is 8x8 Standard size.
|
||||
dark_player_bottom_row = 2
|
||||
light_player_top_row = 5
|
||||
|
||||
// Used to decide which rows to fill up.
|
||||
int darkPlayerBottomRow;
|
||||
int lightPlayerTopRow;
|
||||
# Go through the board and set it up.
|
||||
for row in xrange(0, self.board_size):
|
||||
for col in xrange(0, self.board_size):
|
||||
if row <= dark_player_bottom_row and self._board[row][col] == Square.EMPTY:
|
||||
self._board[row][col] = Square.DARK_PAWN
|
||||
elif row >= light_player_top_row and self._board[row][col] == Square.EMPTY:
|
||||
self._board[row][col] = Square.LIGHT_PAWN
|
||||
|
||||
// Figure out the size of the board.
|
||||
if (this.boardSize == Rulebook.INTERNATIONAL_BOARD_SIZE) {
|
||||
darkPlayerBottomRow = 3;
|
||||
lightPlayerTopRow = 6;
|
||||
} else if (this.boardSize == Rulebook.CANADIAN_BOARD_SIZE) {
|
||||
darkPlayerBottomRow = 3;
|
||||
lightPlayerTopRow = 7;
|
||||
} else { // Default board is 8x8 Standard size.
|
||||
darkPlayerBottomRow = 2;
|
||||
lightPlayerTopRow = 5;
|
||||
}
|
||||
# /**
|
||||
# * Setups a checker board according to the suicide "French" rules.
|
||||
# */
|
||||
def setup_new_suicide_game(self):
|
||||
# TODO: Implement the suicide game setup.
|
||||
pass
|
||||
|
||||
// Go through the board and set it up.
|
||||
for (int row = 0; row < this.boardSize; row++) {
|
||||
for (int col = 0; col < this.boardSize; col++) {
|
||||
if (row <= darkPlayerBottomRow
|
||||
&& this.board[row][col] == Board.EMPTY_SPACE) {
|
||||
this.board[row][col] = Board.DARK_PAWN;
|
||||
} else if (row >= lightPlayerTopRow
|
||||
&& this.board[row][col] == Board.EMPTY_SPACE) {
|
||||
this.board[row][col] = Board.LIGHT_PAWN;
|
||||
}
|
||||
}
|
||||
}
|
||||
# /**
|
||||
# * Returns a string to represent the board state. This string is formatted
|
||||
# * for use as a simple board display in the command window.
|
||||
# *
|
||||
# * <b>Legend</b> ## - White space which the piece can not move on to. __ -
|
||||
# * An empty space. LP - A light pawn. LK - A light king. DP - A dark pawn.
|
||||
# * DK - A dark king.
|
||||
# *
|
||||
# * @return A string representing the current board state.
|
||||
# */
|
||||
def __str__(self):
|
||||
# Prepare for output with a nice looking to banner.
|
||||
output = " "
|
||||
for row in xrange(0, self.board_size):
|
||||
if row < 9:
|
||||
output = '{}{}{}'.format(output, " ", row + 1)
|
||||
else:
|
||||
output = '{}{}{}'.format(output, " ", row + 1)
|
||||
output = output + "\n\n"
|
||||
|
||||
}
|
||||
}
|
||||
output_atom = {
|
||||
Square.WHITE: "## ",
|
||||
Square.EMPTY: "__ ",
|
||||
Square.LIGHT_PAWN: "LP ",
|
||||
Square.LIGHT_KING: "LK ",
|
||||
Square.DARK_PAWN: "DP ",
|
||||
Square.DARK_KING:"DK ",
|
||||
}
|
||||
|
||||
/**
|
||||
* Setups a checker board according to the suicide "French" rules.
|
||||
*/
|
||||
private void setupNewSuicideGame() {
|
||||
// TODO: Implement the suicide game setup.
|
||||
}
|
||||
# Go row by row, printing out the row number and the board's state.
|
||||
for row in xrange(0, self.board_size):
|
||||
if row < 9:
|
||||
output = '{}{}{}'.format(output, " ", row + 1)
|
||||
else:
|
||||
output = '{}{}{}'.format(output, " ", row + 1)
|
||||
|
||||
// -- Private (Implementation) Methods -------------------------------------
|
||||
# // Get current row's state.
|
||||
for col in xrange(0, self.board_size):
|
||||
output = output + output_atom[self._board[row][col]]
|
||||
|
||||
/**
|
||||
* Returns a string to represent the board state. This string is formatted
|
||||
* for use as a simple board display in the command window.
|
||||
*
|
||||
* <b>Legend</b> ## - White space which the piece can not move on to. __ -
|
||||
* An empty space. LP - A light pawn. LK - A light king. DP - A dark pawn.
|
||||
* DK - A dark king.
|
||||
*
|
||||
* @return A string representing the current board state.
|
||||
*/
|
||||
@Override
|
||||
public String toString() {
|
||||
// Prepare for output with a nice looking to banner.
|
||||
String output = " ";
|
||||
for (int i = 0; i < this.boardSize; i++) {
|
||||
if (i < 9) {
|
||||
output = output + " " + (i + 1);
|
||||
} else {
|
||||
output = output + " " + (i + 1);
|
||||
}
|
||||
}
|
||||
output = output + "\n\n";
|
||||
output = output + "\n"
|
||||
|
||||
// Go row by row, printing out the row number and the board's state.
|
||||
for (int row = 0; row < this.boardSize; row++) {
|
||||
if (row < 9) {
|
||||
output = output + " " + (row + 1);
|
||||
} else {
|
||||
output = output + " " + (row + 1);
|
||||
}
|
||||
|
||||
// Get current row's state.
|
||||
for (int col = 0; col < this.boardSize; col++) {
|
||||
switch (this.board[row][col]) {
|
||||
case Board.ILLEGAL_SPACE:
|
||||
output = output + "## ";
|
||||
break;
|
||||
case Board.EMPTY_SPACE:
|
||||
output = output + "__ ";
|
||||
break;
|
||||
case Board.LIGHT_PAWN:
|
||||
output = output + "LP ";
|
||||
break;
|
||||
case Board.LIGHT_KING:
|
||||
output = output + "LK ";
|
||||
break;
|
||||
case Board.DARK_PAWN:
|
||||
output = output + "DP ";
|
||||
break;
|
||||
case Board.DARK_KING:
|
||||
output = output + "DK ";
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
output = output + "\n";
|
||||
}
|
||||
|
||||
return output;
|
||||
|
||||
}
|
||||
}
|
||||
return output
|
||||
|
|
|
|||
|
|
@ -17,271 +17,240 @@
|
|||
# Please share and enjoy!
|
||||
#
|
||||
|
||||
class GameEngine(object):
|
||||
|
||||
// TODO: Add a constructor for games already in progress.
|
||||
|
||||
// -- Game methods --------------------------------------------------------
|
||||
|
||||
private static boolean canJump(Game game, int sourceRow, int sourceCol, int targetRow,
|
||||
int targetCol) {
|
||||
|
||||
// TODO: Implement me.
|
||||
return false;
|
||||
}
|
||||
def canJump(game, sourceRow, sourceCol, targetRow, targetCol):
|
||||
# TODO: Implement me.
|
||||
# TODO: Make as private method.
|
||||
return False
|
||||
|
||||
/**
|
||||
* Returns if a piece can or cannot move. This move maybe either be a move
|
||||
* or a jump. This method is called by a user interface when a user wants to
|
||||
* moves a piece on screen or over the network. The piece can moved if the
|
||||
* current state of the game allows for it to do so.
|
||||
*
|
||||
* TODO: Add priority for king jumps over pawn jumps for any variants that
|
||||
* do so.
|
||||
*
|
||||
* @param sourceRow
|
||||
* The row from where the piece is moving from.
|
||||
* @param sourceCol
|
||||
* The column from where the piece is moving from.
|
||||
* @param targetRow
|
||||
* The row to where the piece is moving to.
|
||||
* @param targetCol
|
||||
* The column to where the piece is moving to.
|
||||
* @return True if the piece can move. False if the piece can not move.
|
||||
*/
|
||||
public static boolean canMove(Game game, int sourceRow, int sourceCol, int targetRow,
|
||||
int targetCol) {
|
||||
|
||||
// A few things to figure out priorities in moving a piece.
|
||||
boolean legalMove = false; // Is the proposed move/jump legal?
|
||||
boolean realPositions = false; // Are the positions really on the board?
|
||||
boolean isJump = false; // Is this a jump?
|
||||
|
||||
// Sanity check.
|
||||
if (game.getGameBoard().isLegalPosition(sourceRow, sourceCol)
|
||||
&& game.getGameBoard().isLegalPosition(targetRow, targetCol)) {
|
||||
realPositions = true;
|
||||
|
||||
}
|
||||
|
||||
// Is there a jump in progress?
|
||||
if (realPositions && game.getJumpInProgress() != null) {
|
||||
|
||||
// Only allow the piece in movement to be moved.
|
||||
if (sourceRow == game.getJumpInProgress().getY()
|
||||
&& sourceCol == game.getJumpInProgress().getX()) {
|
||||
legalMove = canJump(game, sourceRow, sourceCol, targetRow,
|
||||
targetCol);
|
||||
isJump = true;
|
||||
}
|
||||
|
||||
} else if (realPositions) {
|
||||
|
||||
// Go with the regular flow, jumps first then "slides".
|
||||
isJump = canPlayerJump(game);
|
||||
if (isJump) {
|
||||
legalMove = canJump(game, sourceRow, sourceCol, targetRow,
|
||||
targetCol);
|
||||
} else {
|
||||
legalMove = canSlide(game, sourceRow, sourceCol, targetRow,
|
||||
targetCol);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return legalMove;
|
||||
}
|
||||
|
||||
private static boolean canPlayerJump(Game game) {
|
||||
// TODO: Implement me.
|
||||
return false;
|
||||
}
|
||||
# /**
|
||||
# * Returns if a piece can or cannot move. This move maybe either be a move
|
||||
# * or a jump. This method is called by a user interface when a user wants to
|
||||
# * moves a piece on screen or over the network. The piece can moved if the
|
||||
# * current state of the game allows for it to do so.
|
||||
# *
|
||||
# * TODO: Add priority for king jumps over pawn jumps for any variants that
|
||||
# * do so.
|
||||
# *
|
||||
# * @param sourceRow
|
||||
# * The row from where the piece is moving from.
|
||||
# * @param sourceCol
|
||||
# * The column from where the piece is moving from.
|
||||
# * @param targetRow
|
||||
# * The row to where the piece is moving to.
|
||||
# * @param targetCol
|
||||
# * The column to where the piece is moving to.
|
||||
# * @return True if the piece can move. False if the piece can not move.
|
||||
# */
|
||||
def canMove(game, sourceRow, sourceCol, targetRow, targetCol):
|
||||
|
||||
private static boolean canSlide(Game game, int sourceRow, int sourceCol, int targetRow,
|
||||
int targetCol) {
|
||||
|
||||
boolean legalMove = true;
|
||||
boolean mustJump = canPlayerJump(game);
|
||||
|
||||
// Is the move even on the board?
|
||||
legalMove = game.getGameBoard().isLegalPosition(sourceRow, sourceCol)
|
||||
&& game.getGameBoard().isLegalPosition(targetRow, targetCol);
|
||||
|
||||
// See if the destination is even empty.
|
||||
if (legalMove) {
|
||||
legalMove = game.getGameBoard().isEmpty(targetRow, targetCol);
|
||||
}
|
||||
|
||||
// If yes, then look if right pieces were chosen.
|
||||
if (legalMove && !mustJump) {
|
||||
if (game.isLightPlayerTurn()
|
||||
&& game.getGameBoard().isLight(sourceRow, sourceCol)) {
|
||||
|
||||
// To deal with flying kings.
|
||||
if (game.getGameBoard().isKing(sourceRow, sourceCol)
|
||||
&& game.getGameRules().canKingsFly()) {
|
||||
|
||||
// FIXME: Fix this!
|
||||
} else {
|
||||
// if ((Math.abs(targetRow - sourceRow) == 1) && (Math.abs(targetRow - sourceRow) == 1)) {
|
||||
// legalMove = false;
|
||||
// }
|
||||
}
|
||||
|
||||
// Is the path clear for that move?
|
||||
|
||||
} else if (!game.isLightPlayerTurn()
|
||||
&& game.getGameBoard().isDark(sourceRow, sourceCol)) {
|
||||
|
||||
//TODO: Implement me, sometime.
|
||||
} else {
|
||||
legalMove = false;
|
||||
}
|
||||
}
|
||||
|
||||
return legalMove;
|
||||
}
|
||||
# // A few things to figure out priorities in moving a piece.
|
||||
legalMove = False
|
||||
# // Is the proposed move/jump legal?
|
||||
realPositions = False
|
||||
# // Are the positions really on the board?
|
||||
isJump = False
|
||||
# // Is this a jump?
|
||||
|
||||
private static void checkForVictory(Game game) {
|
||||
// TODO: Implement me.
|
||||
}
|
||||
# // Sanity check.
|
||||
if (game.getGameBoard().isLegalPosition(sourceRow, sourceCol)
|
||||
and game.getGameBoard().isLegalPosition(targetRow, targetCol)):
|
||||
realPositions = True
|
||||
|
||||
/**
|
||||
* Gets if a piece is movable. Returns true if the piece can slide or jump.
|
||||
* This method only calculates slides to the adjacent positions. Similarly,
|
||||
* the method only looks at jumping an adjacent enemy piece. This check is
|
||||
* used by the graphical user interface to determine if a piece can be moved
|
||||
* either for sliding or jumping. The method is aware of whose turn is it to
|
||||
* move.
|
||||
*
|
||||
* @param row
|
||||
* The row coordinate of the piece to check.
|
||||
* @param col
|
||||
* The column coordinate of the piece to check.
|
||||
* @return Returns true if the piece can slide or jump in this turn.
|
||||
*/
|
||||
public static boolean isMovablePiece(Game game, int row, int col) {
|
||||
|
||||
// Fields for determining of a piece is movable.
|
||||
boolean moveUpLeft = true;
|
||||
boolean moveUpRight = true;
|
||||
boolean moveDownLeft = true;
|
||||
boolean moveDownRight = true;
|
||||
|
||||
/*
|
||||
* Checks first if the first colour of piece is being grabbed. Next if
|
||||
* the piece is blocked by its own pieces. Next if the opponent has
|
||||
* double blocked off the pieces. Also sanity checks if looking past the
|
||||
* size of the board.
|
||||
*/
|
||||
if (game.isLightPlayerTurn() && game.getGameBoard().isLight(row, col)) { // Light
|
||||
// player.
|
||||
|
||||
// Can piece move normally?
|
||||
moveDownLeft = canSlide(game, row, col, row + 1, col - 1);
|
||||
moveDownRight = canSlide(game, row, col, row + 1, col + 1);
|
||||
|
||||
if (game.getGameBoard().isKing(row, col)) {
|
||||
moveUpLeft = canSlide(game, row, col, row - 1, col - 1);
|
||||
moveUpRight = canSlide(game, row, col, row - 1, col + 1);
|
||||
} else {
|
||||
moveUpLeft = false;
|
||||
moveUpRight = false;
|
||||
}
|
||||
|
||||
// If no slides available try doing the same except for jumps.
|
||||
if (!moveDownLeft) {
|
||||
moveDownLeft = canJump(game, row, col, row + 2, col - 2);
|
||||
} else if (!moveDownRight) {
|
||||
moveDownRight = canJump(game, row, col, row + 2, col + 2);
|
||||
} else if (game.getGameBoard().isKing(row, col)
|
||||
|| game.getGameRules().canPawnsJumpBackwards()) {
|
||||
|
||||
if (!moveUpLeft) {
|
||||
moveUpLeft = canJump(game, row, col, row - 2, col + 2);
|
||||
} else if (!moveUpRight) {
|
||||
moveUpRight = canJump(game, row, col, row - 2, col - 2);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return moveUpLeft || moveUpRight || moveDownLeft || moveDownRight;
|
||||
|
||||
} else if (game.isLightPlayerTurn() && game.getGameBoard().isDark(row, col)) { // Dark
|
||||
// player
|
||||
|
||||
// Can piece move normally?
|
||||
moveUpLeft = canSlide(game, row, col, row - 1, col - 1);
|
||||
moveUpRight = canSlide(game, row, col, row - 1, col + 1);
|
||||
|
||||
if (game.getGameBoard().isKing(row, col)) {
|
||||
moveDownLeft = canSlide(game, row, col, row + 1, col - 1);
|
||||
moveDownRight = canSlide(game, row, col, row + 1, col + 1);
|
||||
} else {
|
||||
moveDownLeft = false;
|
||||
moveDownRight = false;
|
||||
}
|
||||
|
||||
// If no slides available try doing the same except for jumps.
|
||||
if (!moveUpLeft) {
|
||||
moveUpLeft = canJump(game, row, col, row - 2, col - 2);
|
||||
} else if (!moveUpRight) {
|
||||
moveUpRight = canJump(game, row, col, row - 2, col + 2);
|
||||
} else if (game.getGameBoard().isKing(row, col)
|
||||
|| game.getGameRules().canPawnsJumpBackwards()) {
|
||||
|
||||
if (!moveDownLeft) {
|
||||
moveDownLeft = canJump(game, row, col, row + 2, col + 2);
|
||||
} else if (!moveDownRight) {
|
||||
moveDownRight = canJump(game, row, col, row + 2, col - 2);
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return moveUpLeft || moveUpRight || moveDownLeft || moveDownRight;
|
||||
|
||||
} else {
|
||||
return false; // A wrong coloured piece.
|
||||
}
|
||||
|
||||
}
|
||||
# // Is there a jump in progress?
|
||||
if (realPositions and game.getJumpInProgress() != None):
|
||||
|
||||
/**
|
||||
* Moves a pieces from one location to another. This move maybe either be a
|
||||
* move or a jump. This method is called by a user interface when a user
|
||||
* moves a piece on screen or over the network. The piece is moved if the
|
||||
* current state of the game allows for it to do so.
|
||||
*
|
||||
* TODO: Add priority for king jumps over pawn jumps for any variants that
|
||||
* do so. TODO: Implement jumping by piece removal.
|
||||
*
|
||||
* @param sourceRow
|
||||
* The row from where the piece is moving from.
|
||||
* @param sourceCol
|
||||
* The column from where the piece is moving from.
|
||||
* @param targetRow
|
||||
* The row to where the piece is moving to.
|
||||
* @param targetCol
|
||||
* The column to where the piece is moving to.
|
||||
*/
|
||||
public static void movePiece(Game game, int sourceRow, int sourceCol, int targetRow,
|
||||
int targetCol) {
|
||||
|
||||
// If everything checks out... move the piece!
|
||||
if (canMove(game, sourceRow, sourceCol, targetRow, targetCol)) {
|
||||
if (game.getJumpInProgress() != null) {
|
||||
|
||||
// TODO: Implement jumping via removing of piece.
|
||||
game.getGameBoard().movePiece(sourceRow, sourceCol, targetRow,
|
||||
targetCol);
|
||||
} else {
|
||||
game.getGameBoard().movePiece(sourceRow, sourceCol, targetRow,
|
||||
targetCol);
|
||||
}
|
||||
|
||||
checkForVictory(game);
|
||||
}
|
||||
|
||||
}
|
||||
# // Only allow the piece in movement to be moved.
|
||||
if (sourceRow == game.getJumpInProgress().getY()
|
||||
and sourceCol == game.getJumpInProgress().getX()):
|
||||
legalMove = canJump(game, sourceRow, sourceCol, targetRow,
|
||||
targetCol)
|
||||
isJump = True
|
||||
|
||||
}
|
||||
elif (realPositions):
|
||||
|
||||
# // Go with the regular flow, jumps first then "slides".
|
||||
isJump = canPlayerJump(game)
|
||||
if isJump:
|
||||
legalMove = canJump(game, sourceRow, sourceCol, targetRow,
|
||||
targetCol)
|
||||
else:
|
||||
legalMove = canSlide(game, sourceRow, sourceCol, targetRow,
|
||||
targetCol)
|
||||
|
||||
return legalMove
|
||||
|
||||
def canPlayerJump(game):
|
||||
# // TODO: Implement me.
|
||||
# TODO Make as private method
|
||||
return False
|
||||
|
||||
def canSlide(game, sourceRow, sourceCol, targetRow, targetCol):
|
||||
|
||||
# TODO Make private
|
||||
legalMove = True
|
||||
mustJump = canPlayerJump(game)
|
||||
|
||||
# // Is the move even on the board?
|
||||
legalMove = game.getGameBoard().isLegalPosition(sourceRow, sourceCol)\
|
||||
and game.getGameBoard().isLegalPosition(targetRow, targetCol)
|
||||
|
||||
# // See if the destination is even empty.
|
||||
if (legalMove):
|
||||
legalMove = game.getGameBoard().isEmpty(targetRow, targetCol)
|
||||
|
||||
# // If yes, then look if right pieces were chosen.
|
||||
if (legalMove and not mustJump):
|
||||
if (game.isLightPlayerTurn() and game.getGameBoard().isLight(sourceRow, sourceCol)):
|
||||
|
||||
# // To deal with flying kings.
|
||||
if (game.getGameBoard().isKing(sourceRow, sourceCol)
|
||||
and game.getGameRules().canKingsFly()):
|
||||
|
||||
# // FIXME: Fix this!
|
||||
pass
|
||||
else:
|
||||
# // if ((Math.abs(targetRow - sourceRow) == 1) && (Math.abs(targetRow - sourceRow) == 1)) {
|
||||
# // legalMove = false;
|
||||
|
||||
# // Is the path clear for that move?
|
||||
pass
|
||||
|
||||
elif (not game.isLightPlayerTurn() and game.getGameBoard().isDark(sourceRow, sourceCol)):
|
||||
|
||||
# //TODO: Implement me, sometime.
|
||||
pass
|
||||
else:
|
||||
legalMove = False
|
||||
|
||||
return legalMove;
|
||||
|
||||
|
||||
def checkForVictory(game):
|
||||
# // TODO: Implement me.
|
||||
pass
|
||||
|
||||
# /**
|
||||
# * Gets if a piece is movable. Returns True if the piece can slide or jump.
|
||||
# * This method only calculates slides to the adjacent positions. Similarly,
|
||||
# * the method only looks at jumping an adjacent enemy piece. This check is
|
||||
# * used by the graphical user interface to determine if a piece can be moved
|
||||
# * either for sliding or jumping. The method is aware of whose turn is it to
|
||||
# * move.
|
||||
# *
|
||||
# * @param row
|
||||
# * The row coordinate of the piece to check.
|
||||
# * @param col
|
||||
# * The column coordinate of the piece to check.
|
||||
# * @return Returns True if the piece can slide or jump in this turn.
|
||||
# */
|
||||
def isMovablePiece(game, row, col):
|
||||
|
||||
# // Fields for determining of a piece is movable.
|
||||
moveUpLeft = True
|
||||
moveUpRight = True
|
||||
moveDownLeft = True
|
||||
moveDownRight = True
|
||||
|
||||
# /*
|
||||
# * Checks first if the first colour of piece is being grabbed. Next if
|
||||
# * the piece is blocked by its own pieces. Next if the opponent has
|
||||
# * double blocked off the pieces. Also sanity checks if looking past the
|
||||
# * size of the board.
|
||||
# */
|
||||
if (game.isLightPlayerTurn() and game.getGameBoard().isLight(row, col)):
|
||||
|
||||
# // Light player.
|
||||
|
||||
# // Can piece move normally?
|
||||
moveDownLeft = canSlide(game, row, col, row + 1, col - 1)
|
||||
moveDownRight = canSlide(game, row, col, row + 1, col + 1)
|
||||
|
||||
if (game.getGameBoard().isKing(row, col)):
|
||||
moveUpLeft = canSlide(game, row, col, row - 1, col - 1)
|
||||
moveUpRight = canSlide(game, row, col, row - 1, col + 1)
|
||||
else:
|
||||
moveUpLeft = False
|
||||
moveUpRight = False
|
||||
|
||||
# // If no slides available try doing the same except for jumps.
|
||||
if (not moveDownLeft):
|
||||
moveDownLeft = canJump(game, row, col, row + 2, col - 2)
|
||||
elif (not moveDownRight):
|
||||
moveDownRight = canJump(game, row, col, row + 2, col + 2)
|
||||
elif (game.getGameBoard().isKing(row, col)
|
||||
or game.getGameRules().canPawnsJumpBackwards()):
|
||||
|
||||
if (not moveUpLeft):
|
||||
moveUpLeft = canJump(game, row, col, row - 2, col + 2)
|
||||
elif (not moveUpRight):
|
||||
moveUpRight = canJump(game, row, col, row - 2, col - 2)
|
||||
|
||||
return moveUpLeft or moveUpRight or moveDownLeft or moveDownRight
|
||||
|
||||
elif (game.isLightPlayerTurn() and game.getGameBoard().isDark(row, col)):
|
||||
# // Dark player
|
||||
|
||||
# // Can piece move normally?
|
||||
moveUpLeft = canSlide(game, row, col, row - 1, col - 1)
|
||||
moveUpRight = canSlide(game, row, col, row - 1, col + 1)
|
||||
|
||||
if (game.getGameBoard().isKing(row, col)):
|
||||
moveDownLeft = canSlide(game, row, col, row + 1, col - 1)
|
||||
moveDownRight = canSlide(game, row, col, row + 1, col + 1)
|
||||
else:
|
||||
moveDownLeft = False
|
||||
moveDownRight = False
|
||||
|
||||
# // If no slides available try doing the same except for jumps.
|
||||
if (not moveUpLeft):
|
||||
moveUpLeft = canJump(game, row, col, row - 2, col - 2)
|
||||
elif (not moveUpRight):
|
||||
moveUpRight = canJump(game, row, col, row - 2, col + 2)
|
||||
elif (game.getGameBoard().isKing(row, col)
|
||||
or game.getGameRules().canPawnsJumpBackwards()):
|
||||
|
||||
if (not moveDownLeft):
|
||||
moveDownLeft = canJump(game, row, col, row + 2, col + 2)
|
||||
elif (not moveDownRight):
|
||||
moveDownRight = canJump(game, row, col, row + 2, col - 2)
|
||||
|
||||
return moveUpLeft or moveUpRight or moveDownLeft or moveDownRight
|
||||
|
||||
else:
|
||||
return False
|
||||
# // A wrong coloured piece.
|
||||
|
||||
# /**
|
||||
# * Moves a pieces from one location to another. This move maybe either be a
|
||||
# * move or a jump. This method is called by a user interface when a user
|
||||
# * moves a piece on screen or over the network. The piece is moved if the
|
||||
# * current state of the game allows for it to do so.
|
||||
# *
|
||||
# * TODO: Add priority for king jumps over pawn jumps for any variants that
|
||||
# * do so. TODO: Implement jumping by piece removal.
|
||||
# *
|
||||
# * @param sourceRow
|
||||
# * The row from where the piece is moving from.
|
||||
# * @param sourceCol
|
||||
# * The column from where the piece is moving from.
|
||||
# * @param targetRow
|
||||
# * The row to where the piece is moving to.
|
||||
# * @param targetCol
|
||||
# * The column to where the piece is moving to.
|
||||
# */
|
||||
def movePiece(game, sourceRow, sourceCol, targetRow, targetCol):
|
||||
|
||||
# // If everything checks out... move the piecenot
|
||||
if (canMove(game, sourceRow, sourceCol, targetRow, targetCol)):
|
||||
if (game.getJumpInProgress() != None):
|
||||
|
||||
# TODO: Implement jumping via removing of piece.
|
||||
game.getGameBoard().movePiece(sourceRow, sourceCol, targetRow,
|
||||
targetCol)
|
||||
else:
|
||||
game.getGameBoard().movePiece(sourceRow, sourceCol, targetRow,
|
||||
targetCol)
|
||||
|
||||
checkForVictory(game)
|
||||
|
|
|
|||
Loading…
Reference in New Issue