chessboardimpl.java

一个黑白棋的源代码(尚未完成

/*
 * ChessboardImpl.java
 *
 * Created on 2007-9-28, 16:03:53
 *
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package org.yangcq.logic.chessboard;

import org.yangcq.logic.exception.BaseException;
import org.yangcq.logic.player.IPlayer;
import org.yangcq.logic.step.Step;

/**
 *
 * @author Administrator
 */
public final class ChessboardImpl implements IChessboard
{

    private IPlayer[] players; //两个选手,0号执黑，1号执白

    private IPlayer currentPlayer; //当前选手

    private int index = 0;
    private Step[][] chessboard; //棋盘

    private static IChessboard board; //单例


    public boolean chess(int x, int y)
    {
        if (this.chessboard[x][y] == null || this.chessboard[x][y].getColor() == null)
        {
            this.chessboard[x][y] = new Step(x, y, new Boolean(this.currentPlayer.isChessmanBlack()));
            index = 1 - index;
            this.currentPlayer = this.players[index];
            return true;
        }
        return false;
    }

    private ChessboardImpl()
    {
        this.chessboard = new Step[8][8];
        this.chessboard[3][3] = new Step(3, 3, new Boolean(false));
        this.chessboard[4][4] = new Step(4, 4, new Boolean(false));
        this.chessboard[3][4] = new Step(3, 4, new Boolean(true));
        this.chessboard[4][3] = new Step(4, 3, new Boolean(true));
    }

    public static IChessboard getChessboard()
    {
        if (board == null)
        {
            board = new ChessboardImpl();
        }
        return board;
    }

    public void setPlayers(IPlayer[] players) throws BaseException
    {
        if (players == null || players.length != 2)
        {
            throw new BaseException("未提供正确的选手");
        }
        this.players = players;
        this.currentPlayer = this.players[0];
    }

    public Step[][] getBoard()
    {
        return this.chessboard;
    }

    public void setBoard(Step[][] board)
    {
        this.chessboard = board;
    }

    public IPlayer[] getPlayers()
    {
        return this.players;
    }

    public IPlayer getCurrentPlayer()
    {
        return this.currentPlayer;
    }

    public Step[][] getBoardCopy()
    {
        Step[][] copy = new Step[this.chessboard.length][this.chessboard.length];
        for (int i = 0; i < this.chessboard.length; i++)
        {
            for (int j = 0; j < this.chessboard.length; j++)
            {
                if (this.chessboard[i][j] != null)
                {
                    copy[i][j] = this.chessboard[i][j].clone();
                }
            }
        }
        return copy;
    }
}