Question

这是我的代码

import javax.swing.*;
import java.awt.*;

public class board2 {

JFrame frame;
JPanel squares[][] = new JPanel[8][8];

public board2() {
    frame = new JFrame("Simplified Chess");
    frame.setSize(500, 500);
    frame.setLayout(new GridLayout(8, 8));

    for (int i = 0; i < 8; i++) {
        for (int j = 0; j < 8; j++) {
            squares[i][j] = new JPanel();

            if ((i + j) % 2 == 0) {
                squares[i][j].setBackground(Color.black);
            } else {
                squares[i][j].setBackground(Color.white);
            }   
            frame.add(squares[i][j]);
        }
    }

    squares[0][0].add(new JLabel(new ImageIcon("rookgreen.png")));
    squares[0][2].add(new JLabel(new ImageIcon("bishopgreen.png")));
    squares[0][4].add(new JLabel(new ImageIcon("kinggreen.png")));
    squares[0][5].add(new JLabel(new ImageIcon("bishopgreen.png")));
    squares[0][7].add(new JLabel(new ImageIcon("rookgreen.png")));

    squares[7][0].add(new JLabel(new ImageIcon("rookred.png")));
    squares[7][2].add(new JLabel(new ImageIcon("bishopred.png")));
    squares[7][4].add(new JLabel(new ImageIcon("kingred.png")));
    squares[7][5].add(new JLabel(new ImageIcon("bishopred.png")));
    squares[7][7].add(new JLabel(new ImageIcon("rookred.png")));

    for (int i = 0; i < 8; i++) {
        squares[1][i].add(new JLabel(new ImageIcon("pawngreen.png")));
        squares[6][i].add(new JLabel(new ImageIcon("pawnred.png")));
    }

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
}

public static void main(String[] args) {
    new board2();
}
}

我正在尝试创建一种象棋游戏，我需要帮助，在棋盘的所有侧面放置标签，以标记A-H或1-8中的行和列。我不知道该怎么做。后来我将添加一个拖放碎片的功能。是否最好使用JLabels？无论如何，我会把标签放在一边吗？谢谢！

Answer 1

我想使用Unicode字符提交一个简单的棋盘绘图示例。这个小项目涉及3个类别。

ChessLabel.java

import java.awt.Color;
import java.awt.Font;
import javax.swing.JLabel;
import javax.swing.SwingConstants;


public class ChessLabel extends JLabel {

    Font font     = new Font("Ariel", Font.PLAIN, 24);
    Color bgLight = new Color(222, 184, 135);
    Color bgDark  = new Color(139, 69, 19);

    ChessLabel(String s)
    {
        super(s);
    }

    void set(int idx, int row)
    {
      setFont(font);
          setOpaque(true);
          setBackground((idx+row)%2 == 0 ? bgDark : bgLight);
          setHorizontalAlignment( SwingConstants.CENTER );
    }

}

<强> Board.java

import java.awt.*;
import javax.swing.JFrame;


public class Board extends JFrame {


   //Initialise arrays to hold panels and images of the board

    private ChessLabel[] labels = new ChessLabel[] {

    // white
    new ChessLabel("\u2656"), new ChessLabel("\u2658"), new ChessLabel("\u2657"), 
    new ChessLabel("\u2655"), new ChessLabel("\u2654"), new ChessLabel("\u2657"), 
    new ChessLabel("\u2658"), new ChessLabel("\u2656"), new ChessLabel("\u2659"), 
    new ChessLabel("\u2659"), new ChessLabel("\u2659"), new ChessLabel("\u2659"),
    new ChessLabel("\u2659"), new ChessLabel("\u2659"), new ChessLabel("\u2659"), 
    new  ChessLabel("\u2659"), 
    // empty
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "), 
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "), 
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "), 
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "), 
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "), 
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "), 
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "), 
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "),
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "), 
    new ChessLabel(" "), new ChessLabel(" "), new ChessLabel(" "), 
    new ChessLabel(" "), new ChessLabel(" "),
    // black
    new ChessLabel("\u265F"), new ChessLabel("\u265F"), new ChessLabel("\u265F"), 
    new ChessLabel("\u265F"), new ChessLabel("\u265F"), new ChessLabel("\u265F"), 
    new ChessLabel("\u265F"), new ChessLabel("\u265F"), new ChessLabel("\u265C"), 
    new ChessLabel("\u265E"), new ChessLabel("\u265D"), new ChessLabel("\u265B"), 
    new ChessLabel("\u265A"), new ChessLabel("\u265D"), new ChessLabel("\u265E"), 
    new ChessLabel("\u265C")
    };

    public Board() 
    {

    } // Board()

    void display()
    {
        setTitle("Chess board with unicode images");

        setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);

        Container contentPane = getContentPane();
        GridLayout gridLayout = new GridLayout(8, 8);

        contentPane.setLayout(gridLayout);

        int row = -1;
        for (int i = 0; i < labels.length; i++) 
        {
            if(i % 8 == 0) row ++; // increment row number
            labels[i].set(i, row);
            contentPane.add(labels[i]);
        } // i

        setSize(600, 600);
        setLocationRelativeTo(null);
        setVisible(true);
     } // display()

} // class Board

ChessBoardTest.java

public class ChessBoardTest {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) 
    {
        Board board = new Board();

        board.display();
    }

}

Answer 2

转到here。这显示了您可以使用的一些不同布局。您可能想要研究的一件事是网格布局。这样可以方便地为方块添加JPanel。您也可以使用它在电路板周围添加标签，但这只是一种方法。浏览网站上的示例，也有示例代码。

Answer 3

public class Pieces {

}

class Pawn_1 extends JComponent {

        private BufferedImage img;
        private Point imgPoint = new Point(0, 65);

        public Pawn_1() {
            try {
                img = ImageIO.read(new File("C:\\imgs\\b_pawn.png"));

            } catch (IOException ex) {
                ex.printStackTrace();
            }

            MouseAdapter ma = new MouseAdapter() {

                private Point offset;

                @Override
                public void mousePressed(MouseEvent e) {
                    Rectangle bounds = getImageBounds();
                    Point mp = e.getPoint();
                    if (bounds.contains(mp)) {
                        offset = new Point();
                        offset.x = mp.x - bounds.x;
                        offset.y = mp.y - bounds.y;
                    }
                }

                @Override
                public void mouseReleased(MouseEvent e) {
                    offset = null;
                }

                @Override
                public void mouseDragged(MouseEvent e) {
                    if (offset != null) {
                        Point mp = e.getPoint();
                        imgPoint.x = mp.x - offset.x;
                        imgPoint.y = mp.y - offset.y;
                        repaint();
                    }
                }

            };
            addMouseListener(ma);
            addMouseMotionListener(ma);
        }

        protected Rectangle getImageBounds() {
            Rectangle bounds = new Rectangle(0, 0, 0, 0);
            if (img != null) {
                bounds.setLocation(imgPoint);
                bounds.setSize(img.getWidth(), img.getHeight());
            }
            return bounds;
        }

        @Override
        public Dimension getPreferredSize() {
            return new Dimension(65, 65);
        }

        @Override
        protected void paintComponent(Graphics g) {
            super.paintComponent(g);
            if (img != null) {
                Graphics2D g2d = (Graphics2D) g.create();
                g2d.drawImage(img, imgPoint.x, imgPoint.y, this);
                g2d.dispose();
            }
        }
    }

Answer 4

 public void paintComponent(Graphics g) {                
    Graphics2D g2 = (Graphics2D)g;
    g2.setColor(Color.WHITE);
    int row = 0; 
    int col = 0;
    int sq = 65;

    while(row != (sq * 8)){
        if(row % 10 != 0 && col % 10 == 0)g2.setColor(Color.BLACK);
        if(row % 10 != 0 && col % 10 != 0)g2.setColor(Color.WHITE);
        if(row % 10 == 0 && col % 10 == 0)g2.setColor(Color.WHITE);
        if(row % 10 == 0 && col % 10 != 0)g2.setColor(Color.BLACK);

        g2.fillRect(row, col, sq, sq);
        row = row + sq;
        if(row == (sq * 8)){
            row = 0;
            col = col + sq;
            if(col == (sq * 8))break;
        }
    }


}

Answer 5

import java.awt.*;
import java.applet.*;
public class MyChes extends Applet
{
    public void paint(Graphics g)
    {
        for(int i=50;i<=400;i+=50)
        {
           for(int j=50;j<=400;j+=50)
           {
               if((i+j)%100==0)
               {
                  g.setColor(Color.black);
                  g.fillRect(i,j,50,50);
               }
           }
           g.drawRect(50,50,400,400);
         }
     }
}

Answer 6

import java.applet.*;
import java.lang.*;
import java.awt.*;

public class E10_2 extends Applet
{
    public void paint(Graphics g)
    {
        for(int x = 10; x < 330; x+=80)
        {
            for(int y = 10; y < 330; y+=80)
            {
                g.drawRect(8,8,322,322);
                g.drawRect(9,9,322,322);
                g.fillRect(x,y,40,40);
                g.fillRect(x+40,y+40,40,40);
            }
        }
    }
}

在java的国际象棋棋盘

6 个答案: