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

public class Main extends JFrame implements ActionListener{
    private static final long serialVersionUID = 1L;
    private Container contentPane;
    private JButton btn1;
    private JButton btn2;
    private JLabel label1;
    private int row=10;
    private int col=10;
    private int [][]a;
    private JPanel p,p1,p2,p3;
    private int num=0;
    private JButton[][] btns;
    private int number[][];


    public Main(String title){
        super(title);
        contentPane = getContentPane();
        setSize(297,377);
        this.setBounds(400,100,400,500);
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        a=new int[row+2][col+2];
        number=new int[row+2][col+2];
        initGUI();

    }
    public void initGUI(){
        p1=new JPanel();
        btn1=new JButton("开始");
        btn1.addActionListener(this);
        btn2=new JButton("结束");
        btn2.addActionListener(this);
        label1=new JLabel(""+num+"");
        btns=new JButton[row][col];
        p1.add(btn1);
        p1.add(btn2);
        p3=new JPanel();
        p3.add(label1);
        p=new JPanel();
        p.setLayout(new BorderLayout());
        contentPane.add(p);
        p.add(p1,BorderLayout.NORTH);
        p.add(p3,BorderLayout.CENTER);
        p2=new JPanel();
        p2.setLayout(new GridLayout(row,col,0,0));
        for(int i=0;i<row;i++){
            for(int j=0;j<col;j++){
                btns[i][j]=new JButton("〇");
                btns[i][j].setMargin(new Insets(0,0,0,0));
                btns[i][j].setFont(null);
                btns[i][j].addActionListener(this);
                //btns[i].addMouseListener(new NormoreMouseEvent());
                p2.add(btns[i][j]);
            }
        }
        contentPane.add(p,BorderLayout.NORTH);
        contentPane.add(p2,BorderLayout.CENTER);
    }
    public void go(){
        setVisible(true);
    }
    public static void main(String []args){
        new Main("生命游戏").go();
    }

    public void actionPerformed(ActionEvent e) {
        for(int i=0;i<row;i++){
            for(int j=0;j<col;j++){
                if(e.getSource()==btns[i][j]){
                    btns[i][j].setText("●");
                    a[i][j]=1;
                    num++;
                }
            }

            label1.setText("目前共有"+num+"个活细胞");


        }



        if(e.getSource()==btn1){

            for(int i=0;i<row;i++){
                for(int j=0;j<col;j++){
                    number[i][j]=0;//number是周围活细胞的个数
                    for(int z=i-1;z<i+2;z++){
                        for(int y=j-1;y<j+2;y++){
                            if(z<0||z>=row||y<0||y>=col){continue;}
                            if(a[z][y]==1)
                                number[i][j]++;
                        }
                    }
                    //如果自身是活细胞的话，number需要-1
                    if(a[i][j]==1)
                        number[i][j]--;
                }
            }
            //周围活细胞的个数在上下限内，则变为活细胞，否则变成死细胞
            for(int i=0;i<row;i++)
            {
                for(int j=0;j<col;j++)
                {
                    switch(number[i][j])
                    {
                        case 1:
                            a[i][j]=a[i][j];
                            break;
                        case 2:
                            a[i][j]=a[i][j];
                            break;
                        case 3:
                            a[i][j]=1;
                            break;
                        default:
                            a[i][j]=0;
                    }
                }
            }




            for(int i=0;i<row;i++){
                for(int j=0;j<col;j++){
                    if(a[i][j]==1){
                        btns[i][j].setText("●");
                    }
                    if(a[i][j]==0){
                        btns[i][j].setText("〇");

                    }
                }
            }
            num=0;
            for(int i=0;i<row;i++){
                for(int j=0;j<col;j++){
                    if(a[i][j]==1){
                        num++;

                    }
                }
            }
            label1.setText("目前共有"+num+"个活细胞");
        }
        if(e.getSource()==btn2){
            for(int i=0;i<row;i++){
                for(int j=0;j<col;j++){
                    btns[i][j].setText("〇");
                    a[i][j]=0;
                    num=0;
                    label1.setText("目前共有"+num+"个活细胞");
                }
            }
        }
    }
}