import java.awt.*;import java.awt.event.*;
//创建棋盘的类：
class ChessPad extends Panel implements MouseListener,ActionListener
{ int x=-1,y=-1, 棋子颜色=1; //控制棋子颜色的成员变量。
Button button=new Button("重新开局"); //控制重新开局的按扭。
TextField text_1=new TextField("请黑棋下子"),
text_2=new TextField(); //提示下棋的两个文本框。
ChessPad()
{setSize(440,440);
setLayout(null);setBackground(Color.pink);
addMouseListener(this);add(button);button.setBounds(10,5,60,26);
button.addActionListener(this);
add(text_1);text_1.setBounds(90,5,90,24);
add(text_2);text_2.setBounds(290,5,90,24);
text_1.setEditable(false);text_2.setEditable(false);
}
public void paint(Graphics g) //绘制围棋棋盘的外观。
{for(int i=40;i<=380;i=i+20)
{g.drawLine(40,i,400,i);}
g.drawLine(40,400,400,400);
for(int j=40;j<=380;j=j+20)
{g.drawLine(j,40,j,400);}
g.drawLine(400,40,400,400);
g.fillOval(97,97,6,6); g.fillOval(337,97,6,6);
g.fillOval(97,337,6,6);g.fillOval(337,337,6,6);
g.fillOval(217,217,6,6);
}
public void mousePressed(MouseEvent e) //当按下鼠标左键时下棋子。
{ if(e.getModifiers()==InputEvent.BUTTON1_MASK)
{ x=(int)e.getX();y=(int)e.getY(); //获取按下鼠标时的坐标位置。
ChessPoint_black chesspoint_black=new ChessPoint_black(this);
ChessPoint_white chesspoint_white=new ChessPoint_white(this);
int a=(x+10)/20,b=(y+10)/20;
if(x/20<2||y/20<2||x/20>19||y/20>19) //棋盘以外不下棋子。
{}
else{ if(棋子颜色==1) //当棋子颜色是1时下黑棋子。
{this.add(chesspoint_black);
chesspoint_black.setBounds(a*20-7,b*20-7,16,16);
棋子颜色=棋子颜色*(-1);
text_2.setText("请白棋下子");
text_1.setText("");
}
else if(棋子颜色==-1) //当棋子颜色是-1时下白棋子。
{this.add(chesspoint_white);
chesspoint_white.setBounds(a*20-7,b*20-7,16,16);
棋子颜色=棋子颜色*(-1);
text_1.setText("请黑棋下子");
text_2.setText("");
}
}
}
}
public void mouseReleased(MouseEvent e){}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseClicked(MouseEvent e){}
public void actionPerformed(ActionEvent e)
{this.removeAll();棋子颜色=1;
add(button);button.setBounds(10,5,60,26);
add(text_1);text_1.setBounds(90,5,90,24);
text_2.setText("");text_1.setText("请黑棋下子");
add(text_2);text_2.setBounds(290,5,90,24);
}
}
//负责创建黑色棋子的类：
class ChessPoint_black extends Canvas implements MouseListener
{ ChessPad chesspad=null; //棋子所在的棋盘。
ChessPoint_black(ChessPad p)
{setSize(20,20);chesspad=p; addMouseListener(this);
}
public void paint(Graphics g) //绘制棋子的大小。
{ g.setColor(Color.black);g.fillOval(0,0,14,14);
}
public void mousePressed(MouseEvent e)
{ if(e.getModifiers()==InputEvent.BUTTON3_MASK)
{chesspad.remove(this);//当用鼠标右键点击棋子时，从棋盘中去掉该棋子（悔棋）。
chesspad.棋子颜色=1;
chesspad.text_2.setText("");chesspad.text_1.setText("请黑棋下子");
}
}
public void mouseReleased(MouseEvent e){}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseClicked(MouseEvent e)
{ if(e.getClickCount()>=2)
chesspad.remove(this); //当用左键双击该棋子时，吃掉该棋子。
}
}
//负责创建白色棋子的类：
class ChessPoint_white extends Canvas implements MouseListener
{
ChessPad chesspad=null;
ChessPoint_white(ChessPad p)
{setSize(20,20);addMouseListener(this);
chesspad=p;
}
public void paint(Graphics g)
{ g.setColor(Color.white);g.fillOval(0,0,14,14);
}
public void mousePressed(MouseEvent e)
{ if(e.getModifiers()==InputEvent.BUTTON3_MASK)
{chesspad.remove(this);chesspad.棋子颜色=-1;
chesspad.text_2.setText("请白棋下子"); chesspad.text_1.setText("");
}
}
public void mouseReleased(MouseEvent e){}
public void mouseEntered(MouseEvent e) {}
public void mouseExited(MouseEvent e) {}
public void mouseClicked(MouseEvent e)
{if(e.getClickCount()>=2)
chesspad.remove(this);
}
}
public class Chess extends Frame //添加棋盘的窗口。
{ChessPad chesspad=new ChessPad();
Chess()
{setSize(600,600);
setVisible(true);
setLayout(null);
Label label=
new Label("单击下棋子，双击吃棋子，右击棋子悔棋",Label.CENTER);
add(label);label.setBounds(70,55,440,26);
label.setBackground(Color.orange);
add(chesspad);chesspad.setBounds(70,90,440,440);
addWindowListener(new WindowAdapter()
{public void windowClosing(WindowEvent e){System.exit(0);}
});
}
public static void main(String args[])
{ Chess chess=new Chess();
}
}
参考资料：http://topic.csdn.net/t/20051209/00/4447638.html#