用Java可视化Conway的生活游戏(可能使用GUI)？

Question

我刚刚完成了Conway的生命游戏的实施.我想知道什么是可视化世代进步的好方法.到目前为止,我有一个简单的打印声明:

        System.out.println();
        for (int j= 0; j < n; j++){
            for (int k= 0; k < n; k++){
                System.out.print(board[j][k] + "\t");
            }
            System.out.print("\n");
        }

这可以用于测试,但我真的希望看到一些复杂的结构.我的问题是:我应该如何推进可视化？也许我可以构建某种GUI(虽然我还没有这样做).

以下是我如何构建算法的一般概念:

    int i= 0;
    while (i < 3){
        int[][] temp= board;
        for (int j= 0; j < n; j++){
            for (int k= 0; k < n; k++){
                //Update temp array according to Conway's rules. 
            }
        }
        board= temp;
        i++;
        //Print statements
    }

所以,我的确切问题是:如何构建一个GUI？

Answer 1

我很久以前没有触及这个,这是我在java中的实现,这很有趣.

基本上我只是将活细胞画成4x4红色方块.更新方法有一些if可以优化的测试,但我认为性能增益可以忽略不计.在下面的代码中,值为1的tile是活动的,0是死的.

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.beans.Transient;
import java.util.Random;

import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.Timer;


@SuppressWarnings("serial")
public class ConwaysGameOfLife extends JPanel {

    private int[][] grid;
    private static final Random rnd = new Random();
    private int generationCounter;

    public ConwaysGameOfLife(int width, int height) {
        this.grid = new int[width / 4][height / 4];
        setupGrid();
    }

    private void setupGrid() {
        for (int[] row : grid) {
            for (int j = 0; j < row.length; j++) {
                if (rnd.nextDouble() < 0.92)
                    continue;
                row[j] = rnd.nextInt(2);
            }
        }
    }

    public void updateGrid() {
        for (int i = 0; i < grid.length; i++) {
            for (int j = 0; j < grid[i].length; j++) {
                applyRule(i, j);
            }
        }
    }


    private void applyRule(int i, int j) {
        int left = 0, right = 0, up = 0, down = 0;
        int dUpperLeft = 0, dUpperRight = 0, dLowerLeft = 0, dLowerRight = 0;

        if (j < grid.length - 1) {
            right = grid[i][j + 1];
            if(i>0)
                dUpperRight = grid[i - 1][j + 1];
            if (i < grid.length - 1)
                dLowerRight = grid[i + 1][j + 1];
        }

        if (j > 0) {
            left = grid[i][j - 1];
            if (i > 0)
                dUpperLeft = grid[i - 1][j - 1];
            if (i< grid.length-1)
                dLowerLeft = grid[i + 1][j - 1];
        }

        if (i > 0)
            up = grid[i - 1][j];
        if (i < grid.length - 1)
            down = grid[i + 1][j];

        int sum = left + right + up + down + dUpperLeft + dUpperRight
                + dLowerLeft
                + dLowerRight;

        if (grid[i][j] == 1) {
            if (sum < 2)
                grid[i][j] = 0;
            if (sum > 3)
                grid[i][j] = 0;
        }

        else {
            if (sum == 3)
                grid[i][j] = 1;
        }

    }

    @Override
    @Transient
    public Dimension getPreferredSize() {
        return new Dimension(grid.length * 4, grid[0].length * 4);
    }

    @Override
    protected void paintComponent(Graphics g) {
        super.paintComponent(g);
        Color gColor = g.getColor();

        g.drawString("Generation: " + generationCounter++, 0, 10);
        for (int i = 0; i < grid.length; i++) {
            for (int j = 0; j < grid[i].length; j++) {
                if (grid[i][j] == 1) {
                    g.setColor(Color.red);
                    g.fillRect(j * 4, i * 4, 4, 4);
                }
            }
        }

        g.setColor(gColor);
    }

    public static void main(String[] args) {
        final ConwaysGameOfLife c = new ConwaysGameOfLife(800, 800);
        JFrame frame = new JFrame();
        frame.getContentPane().add(c);
        frame.pack();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocationByPlatform(true);
        frame.setVisible(true);
        new Timer(100, new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                c.updateGrid();
                c.repaint();
            }
        }).start();
    }
}

管理得到像这样一个漂亮的模式一次运行