问题与生活的游戏

我正在研究康威的生活游戏的Java实现，作为我自己的个人项目。 到目前为止，它的工作，但规则出来错了。 预期的模式没有显示出来，应该是。 我的代码有什么问题吗？ 

import javax.swing.*; import java.awt.*; import java.awt.event.*; public class Cell extends JComponent implements MouseListener { private int row, col; private boolean isLiving; public Cell(int r, int c) { this.row = r; this.col = c; this.addMouseListener(this); } public void isAlive(int neighbors) { if (this.isLiving) { if (neighbors < 2) { this.isLiving = false; } else if (neighbors == 2 || neighbors == 3) { this.isLiving = true; } else if (neighbors > 3) { this.isLiving = false; } } else { if (neighbors == 3) { this.isLiving = true; } } } public boolean isLiving() { return this.isLiving; } public void paintComponent(Graphics g) { if (this.isLiving) { g.fillRect(0, 0, 10, 10); } else { g.drawRect(0, 0, 10, 10); } } public void mouseClicked(MouseEvent e) { this.isLiving = !this.isLiving; } public void mouseEntered(MouseEvent e) { } public void mouseExited(MouseEvent e) { } public void mousePressed(MouseEvent e) { } public void mouseReleased(MouseEvent e) { } }

我怀疑你的代码的问题在于，一旦邻居被检查，它就将单元格设置为活的或死的。 这导致我的代码的早期变体失败。 这种状态的改变必须推迟到整个电网（生物圈）被检查。

这个例子显示了典型的生命游戏行为。

  1. 请注意，“怀疑不是答案”，所以最好张贴一个SSCCE。

生命的游戏

 import java.awt.*; import java.awt.event.*; import javax.swing.*; import java.util.Random; public class GameOfLife extends JPanel { private int row, col; private boolean isLiving; public static Random random = new Random(); public GameOfLife(int r, int c) { this.row = r; this.col = c; MouseListener listener = new MouseAdapter() { public void mouseClicked(MouseEvent e) { isLiving = !isLiving; repaint(); } }; this.addMouseListener(listener); isLiving = random.nextBoolean(); } public boolean isAlive(int neighbors) { boolean alive = false; if (this.isLiving) { if (neighbors < 2) { alive = false; } else if (neighbors == 2 || neighbors == 3) { alive = true; } else if (neighbors > 3) { alive = false; } } else { if (neighbors == 3) { alive = true; } } return alive; } public void setAlive(boolean alive) { isLiving = alive; } public boolean isLiving() { return this.isLiving; } public void paintComponent(Graphics g) { super.paintComponent(g); if (this.isLiving) { g.fillRect(0, 0, getWidth() - 1, getHeight() - 1); } else { g.drawRect(0, 0, getWidth() - 1, getHeight() - 1); } } public static void main(String[] args) { final int s = 40; final GameOfLife[][] biosphere = new GameOfLife[s][s]; final JPanel gui = new JPanel(new GridLayout(s, s, 2, 2)); for (int ii = 0; ii < s; ii++) { for (int jj = 0; jj < s; jj++) { GameOfLife cell = new GameOfLife(ii, jj); cell.setPreferredSize(new Dimension(10, 10)); gui.add(cell); biosphere[ii][jj] = cell; } } ActionListener al = new ActionListener() { public void actionPerformed(ActionEvent ae) { boolean[][] living = new boolean[s][s]; for (int ii = 0; ii < s; ii++) { for (int jj = 0; jj < s; jj++) { int top = (jj > 0 ? jj - 1 : s - 1); int btm = (jj < s - 1 ? jj + 1 : 0); int lft = (ii > 0 ? ii - 1 : s - 1); int rgt = (ii < s - 1 ? ii + 1 : 0); int neighbors = 0; if (biosphere[ii][top].isLiving()) { neighbors++; } if (biosphere[ii][btm].isLiving()) { neighbors++; } if (biosphere[lft][top].isLiving()) { neighbors++; } if (biosphere[lft][btm].isLiving()) { neighbors++; } if (biosphere[lft][jj].isLiving()) { neighbors++; } if (biosphere[rgt][jj].isLiving()) { neighbors++; } if (biosphere[rgt][top].isLiving()) { neighbors++; } if (biosphere[rgt][btm].isLiving()) { neighbors++; } living[ii][jj] = biosphere[ii][jj].isAlive(neighbors); } } for (int ii = 0; ii < s; ii++) { for (int jj = 0; jj < s; jj++) { biosphere[ii][jj].setAlive(living[ii][jj]); } } gui.repaint(); } }; Timer timer = new Timer(50, al); timer.start(); JOptionPane.showMessageDialog(null, gui); timer.stop(); } }
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