如何重绘JButtons并更新国际象棋游戏的GUI

Question

我试图制作国际象棋游戏，但我无法弄清楚如何顺利地重绘我的细胞。我希望每次一件作品都能重新绘制它们。我试图继续添加Jframes，但它会让它回到旧框架上。有没有一种简单的方法来更新GUI的某些部分？

import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.*;






public class GUI {

    public static JFrame frame;                     //global variable for drawn frame
    public static ChessBoardPane tiles;


    public GUI(final Piece[][] board) {             //GUI for Board and Pieces



        EventQueue.invokeLater(new Runnable() {
            @Override
            public void run() {
                try {
                    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                } catch (Exception ex) {
                }

                frame = new JFrame("Chess");                                //initialize frame
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);       //closes on exit
                drawFrame(board);                                           //draw frame
            }
        });


    }

    public void drawFrame(final Piece[][] board){                                               //updates gui with a new frame  

        try{
        tiles=new ChessBoardPane(board);
        frame.add(tiles);                       //add chess board to frame
        frame.pack();                                               //resizes frame to fit chess grid
        frame.setLocationRelativeTo(null);                          //window in middle of screen
        frame.setVisible(true);                                     //visible
        } catch(Exception ex){

        }


    }



    public class ChessBoardPane extends JPanel{                         //creates a grid of jButtons

        public ChessBoardPane(Piece board[][]) {
            int index = 0;
            setLayout(new GridBagLayout());
            GridBagConstraints gbc = new GridBagConstraints();
            for (int row = 0; row < Board.width; row++) {
                for (int col = 0; col < Board.height; col++) {
                    Color color = index % 2 == 0 ? Color.LIGHT_GRAY : Color.DARK_GRAY;      //cells are dark and light gray
                    gbc.gridx = col;                    
                    gbc.gridy = row;
                    String symbol;
                    if(board[col][Board.height-row-1]!=null){
                        symbol=board[col][Board.height-row-1].symbol;                       //chooses the correct picture for a piece
                    }
                    else
                        symbol=null;

                    Cell tile = new Cell(color,symbol);
                    tile.addActionListener(new ButtonActionListener(col, Board.height-row-1));
                    add(tile, gbc);                                     //add cell to gui
                    index++;
                }
                index++;
            }
        }


    private class ButtonActionListener implements ActionListener{                   //used to get x and y coordinates for button presses and call methods 
        private int x;
        private int y;

        public ButtonActionListener(int x, int y){
            this.x=x;
            this.y=y;
        }

        public void actionPerformed(ActionEvent e){                                 //runs commands when a tile is pressed
                Game.attemptMove(x,y);
        }
    }


    }

    public class Cell extends JButton { //sets up cell behavior

        int x;
        int y;

        public Cell(Color background, String symbol) {

            setContentAreaFilled(false);      
            if(symbol!=null){
                ImageIcon img = new ImageIcon(symbol);                                  //puts picture in cell
                setIcon(img);
            }
            setBorderPainted(false);
            setBackground(background);                                                  //sets cell color
            setOpaque(true);


        }

        @Override
        public Dimension getPreferredSize() {                                           //sets size of cell
            return new Dimension(75, 75);                                           
        }

    }

}