five.java

Java五子棋编程

/**
  This is a simple game, two people can play it together.
  @author jellen
  @version 0.2 11-8-2004
*/

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.awt.geom.*;
import java.util.*;

class MainPanel extends JPanel {
    private ArrayList items = new ArrayList(100);
    private Line2D.Float[] rect = new Line2D.Float[16];
    private Line2D.Float[] vert = new Line2D.Float[16];
    private JButton reset = new JButton("Reset");
    private JButton quit = new JButton("Quit");
    private int[][] data = new int[15][15];
    private boolean isBlack = true;
    private boolean paintEnabled = true;

    public MainPanel() {
	initPanel();
	setLayout(new BorderLayout());

	JPanel panel = new JPanel();
	panel.add(reset);
	panel.add(quit);
	add(panel, BorderLayout.SOUTH);

	addMouseListener(new MouseHandler());
    }

    private void initPanel() {
	int startX = 50;
	int startY = 50;

	for(int i = 0; i < 16; i++) {
	    rect[i] = new Line2D.Float(startX, startY + 20*i, startX + 300, startY + 20*i);
	    vert[i] = new Line2D.Float(startX + 20*i, startY, startX + 20*i, startY + 300);
	}

	for(int i = 0; i < 15; i++)
	    for(int j = 0; j < 15; j++)
		data[i][j] = 0;

	reset.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
		    isBlack = true;
		    paintEnabled = true;

		    items.clear();
		    for(int i = 0; i < 15; i++)
			for(int j = 0; j < 15; j++)
			    data[i][j] = 0;
		    repaint();
		}
	    });
	quit.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
		    System.exit(0);
		}
	    });
    }

    public void paintComponent(Graphics g) {
	super.paintComponent(g);

	Graphics2D g2 = (Graphics2D)g;
	for(int i = 0; i < 16; i++) {
	    g2.draw(rect[i]);
	    g2.draw(vert[i]);
	}

	boolean black = true;
	for(int i = 0; i < items.size(); i++) {
	    if(black) {
		g.setColor(Color.BLACK);
		black = false;
	    } else {
		g.setColor(Color.WHITE);
		black = true;
	    }
            g2.fill((Ellipse2D)items.get(i));
	}
    }

    private class MouseHandler extends MouseAdapter {
	public void mouseClicked(MouseEvent e) {
	    int x = e.getX();
	    int y = e.getY();

	    if((x > 50 && x < 350 && y > 50 && y < 350) && paintEnabled) {
		int i = (y - 50) / 20;
		int j = (x - 50) / 20;

		if(data[i][j] == 0) {
		    if(isBlack) {
		    	data[i][j] = 1;
		    	isBlack = false;
		    } else {
			data[i][j] = -1;
			isBlack = true;
		    }


		    int cx = j * 20 + 60;
		    int cy = i * 20 + 60;
		    Ellipse2D ellipse = new Ellipse2D.Float();
		    ellipse.setFrameFromCenter(cx, cy, cx + 8, cy + 8); 
		    items.add(ellipse);
		    repaint();

		    int result = check(data);
		    int select = -999;
		    if(result == 1)
			select = JOptionPane.showConfirmDialog(
				 MainPanel.this, 
				 "Black player wins!\nDo you want to play again?",
				 "Message Box",
				 JOptionPane.YES_NO_OPTION,
				 JOptionPane.QUESTION_MESSAGE);
		    else if(result == -1)
			select = JOptionPane.showConfirmDialog(
			         MainPanel.this, 
				 "White player wins!\nDo you want to play again?",
				 "Message Box",
				 JOptionPane.YES_NO_OPTION,
				 JOptionPane.QUESTION_MESSAGE);

		    if(select == JOptionPane.YES_OPTION) {
			isBlack = true;
			paintEnabled = true;

			items.clear();
			for(int p = 0; p < 15; p++)
			    for(int q = 0; q < 15; q++)
				data[p][q] = 0;
			repaint();
		    } else if(select == JOptionPane.NO_OPTION) {
			paintEnabled = false;
		    }
		}
	    }
	}
    }

    public static int check(int[][] a) {
	int res = 0;
	int num = 0;

	for(int i = 0; i < 15; i++) {
	    res = 0;
	    num = 0;
	    
	    if((res = a[i][0]) != 0)
		num = 1;

	    for(int j = 1; j < 15; j++) {
		if((a[i][j] == res) && res != 0) {
		    if(++num == 5)  //find one
			return res;
		} else if(a[i][j] == 0) {
		    res = 0;
		    num = 0;
		} else {
		    res = a[i][j];
		    num = 1;
		}
	    }
	}

	for(int j = 0; j < 15; j++) {
	    res = 0;
	    num = 0;
	    
	    if((res = a[0][j]) != 0)
		num = 1;

	    for(int i = 1; i < 15; i++) {
		if((a[i][j] == res) && res != 0) {
		    if(++num == 5)
			return res;
		} else if(a[i][j] == 0) {
		    res = 0;
		    num = 0;
		} else {
		    res = a[i][j];
		    num = 1;
		}
	    }
	}

	for(int i = 4; i <= 24; i++) {
	    res = 0;
	    num = 0;

	    if(i <= 14) {
		if((res = a[0][i]) != 0)
		    num = 1;

		for(int j = 1; j <= i; j++) {
		    if((a[j][i-j] == res) && res != 0) {
			if(++num == 5)
			    return res;
		    } else if(a[j][i-j] == 0) {
			res = 0;
			num = 0;
		    } else {
			res = a[j][i-j];
			num = 1;
		    }
		}
	    } else {
		if((res = a[i-14][14]) != 0)
		    num = 1;

		for(int j = i - 13; j <= 14; j++) {
		    if((a[j][i-j] == res) && res != 0) {
			if(++num == 5)
			    return res;
		    } else if(a[j][i-j] == 0) {
			res = 0;
			num = 0;
		    } else {
			res = a[j][i-j];
			num = 1;
		    }
		}
	    }
	}

	for(int i = 4; i <= 24; i++) {
	    res = 0;
	    num = 0;

	    if( i <= 14) {
		if((res = a[0][14-i]) != 0)
		    num = 1;

		for(int j = 1; j <= i; j++) {
		    if((a[j][14-i+j] == res) && res != 0) {
			if(++num == 5)
			    return res;
		    } else if(a[j][14-i+j] == 0) {
			res = 0;
			num = 0;
		    } else {
			res = a[j][14-i+j];
			num = 1;
		    }
		}
	    } else {
		if((res = a[i-14][0]) != 0)
		    num = 1;

		for(int j = i - 13, k = 1; j <= 14; j++, k++) {
		    if((a[j][k] == res) && res != 0) {
			if(++num == 5)
			    return res;
		    } else if(a[j][k] == 0) {
			res = 0;
			num = 0;
		    } else {
			res = a[j][k];
			num = 1;
		    }
		}
	    }
	}
	
	return res;
    }

}

class MainFrame extends JFrame {
    public MainFrame() {
	setTitle("Five's Game");
	setSize(400, 500);
	setResizable(false);

	getContentPane().add(new MainPanel());
    }
}

public class Five {
    public static void main(String[] args) {
	JFrame jellen = new MainFrame();
	jellen.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	jellen.show();
    }
}