java象棋

/* @author AnShuFeng
*   @version 1.0
*  人人对战象棋
*  XiangQi.java
*/
  
import java.awt.*;
import java.awt.event.*;
import javax.imageio.*;
import java.io.*;
import javax.swing.*;
import java.awt.image.*;
public class XiangQi
{
    JFrame frame = new JFrame("树峰象棋");
    //红方所有棋子
    BufferedImage rj;
    BufferedImage rm;
    BufferedImage rx;
    BufferedImage rs;
    BufferedImage rk;
    BufferedImage rp;
    BufferedImage rz;
    //黑方所有棋子
    BufferedImage hj;
    BufferedImage hm;
    BufferedImage hx;
    BufferedImage hs;
    BufferedImage hk;
    BufferedImage hp;
    BufferedImage hz;
    //定义棋盘
    BufferedImage table;
    //定义棋盘大小
    private int BOARD_SIZEX = 9;
    private int BOARD_SIZEY = 10;
    //定义棋盘宽高多少个像素
    private final int TABLE_WIDTH = 396;
    private final int TABLE_HETGHT = 398;
    //定义棋盘坐标的像素值和棋盘坐标之间的比率
    private final int RATE = TABLE_WIDTH/BOARD_SIZEY;
    //定义一个二维数组来充当棋盘
    private char[][] board = new char[BOARD_SIZEX][BOARD_SIZEY];
    ChessBoard chessBoard = new ChessBoard();
    //定义棋盘坐标的像素值和棋盘数组之间的偏移距
    private final int X_OFFSET = 20;
    private final int Y_OFFSET = 8;
    //保存鼠标拖动前和后的坐标  
     int xPos1 = -1;
  int yPos1 = -1;
  int xPos2 = -1;
  int yPos2 = -1;
  //两方每次只能走一步