如何添加一个function，我可以在我的生命游戏程序中获得这一代？

我试图让我的程序显示（在控制台中首先测试）在单元格改变其forms的每一步的计数。 因此，计数应该从0开始，并在每次单元格改变其forms时递增。 我试过这个，使用count ++然而它不会增加1，而是给我随机数。 任何帮助都感激不尽。

import java.awt.Color; import java.util.Timer; import java.util.TimerTask; import java.awt.Image; import java.awt.Graphics; import javax.swing.SwingUtilities; public class GameOfLife extends javax.swing.JFrame { final int wid = 100, hei = 50; public static int count; boolean[][] currentMove = new boolean[hei][wid], nextMove = new boolean[hei][wid]; boolean play; Image offScrImg; Graphics offScrGraph; public GameOfLife() { initComponents(); offScrImg = createImage(jPanel1.getWidth(), jPanel1.getHeight()); offScrGraph = offScrImg.getGraphics(); Timer time = new Timer(); TimerTask task = new TimerTask(){ public void run(){ if(play){ System.out.println(count); for(int i = 0; i < hei; i++){ for(int j = 0; j < wid; j++){ nextMove[i][j] = decide(i,j); } } for(int i = 0; i < hei; i++){ for(int j = 0; j < wid; j++){ currentMove[i][j] = nextMove[i][j]; } } repain(); } } }; time.scheduleAtFixedRate(task, 0, 100); repain(); } private boolean decide(int i, int j){ int neighbors = 0; // top-left row-1,col-1 if (currentMove[getTopRow(i - 1)][getLeftCol(j - 1)]) neighbors++; //Uses getTopRow and getLeftCol methods to determine the indices of the top left cell // left row,col-1 if (currentMove[i][getLeftCol(j - 1)]) neighbors++; // bottom left row+1,col-1 if (currentMove[getBottomRow(i + 1)][getLeftCol(j - 1)] ) neighbors++; // bottom row+1,col if (currentMove[getBottomRow(i + 1)][j]) neighbors++; // bottom right row+1,col+1 if (currentMove[getBottomRow(i + 1)][getRightCol(j + 1)]) neighbors++; // right row,col+1 if (currentMove[i][getRightCol(j + 1)]) neighbors++; // top-right row-1,col+1 if (currentMove[getTopRow(i - 1)][getRightCol(j + 1)])neighbors++; // top row-1, col if(currentMove[getTopRow(i - 1)][j]) neighbors++; if(neighbors == 3) { count++; return true; } if(currentMove[i][j] && neighbors == 2){ count++; return true; } return false; } private int getLeftCol(int neighbourCol) { return neighbourCol  (wid-1) ? 0 : neighbourCol; } private int getTopRow(int neighbourRow) { return neighbourRow  (hei - 1) ? 0 : neighbourRow; } private void repain(){ offScrGraph.setColor(Color.RED); offScrGraph.fillRect(0, 0, jPanel1.getWidth(), jPanel1.getHeight()); for(int i = 0 ; i < hei ; i++){ for(int j = 0 ; j < wid; j++){ if(currentMove[i][j]){ offScrGraph.setColor(Color.GREEN); int x = j * jPanel1.getWidth()/wid; int y = i * jPanel1.getHeight()/hei; offScrGraph.fillRect(x, y, jPanel1.getWidth()/wid, jPanel1.getHeight()/hei); } } } offScrGraph.setColor(Color.BLACK); for(int i = 1; i < hei;i++){ int y = i * jPanel1.getHeight()/hei; offScrGraph.drawLine(0, y, jPanel1.getWidth(), y); } for(int j = 1; j < wid;j++){ int x = j * jPanel1.getWidth()/wid; offScrGraph.drawLine(x, 0, x, jPanel1.getHeight()); } jPanel1.getGraphics().drawImage(offScrImg, 0, 0, jPanel1); } @SuppressWarnings("unchecked") // //GEN-BEGIN:initComponents private void initComponents() { jPanel1 = new javax.swing.JPanel(); jButton1 = new javax.swing.JButton(); jButton2 = new javax.swing.JButton(); setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE); jPanel1.setBackground(new java.awt.Color(102, 102, 102)); jPanel1.addMouseMotionListener(new java.awt.event.MouseMotionAdapter() { public void mouseDragged(java.awt.event.MouseEvent evt) { jPanel1MouseDragged(evt); } }); jPanel1.addMouseListener(new java.awt.event.MouseAdapter() { public void mouseClicked(java.awt.event.MouseEvent evt) { jPanel1MouseClicked(evt); } }); jPanel1.addComponentListener(new java.awt.event.ComponentAdapter() { public void componentResized(java.awt.event.ComponentEvent evt) { jPanel1ComponentResized(evt); } }); javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1); jPanel1.setLayout(jPanel1Layout); jPanel1Layout.setHorizontalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 0, Short.MAX_VALUE) ); jPanel1Layout.setVerticalGroup( jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGap(0, 293, Short.MAX_VALUE) ); jButton1.setText("Play"); jButton1.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton1ActionPerformed(evt); } }); jButton2.setText("Reset"); jButton2.addActionListener(new java.awt.event.ActionListener() { public void actionPerformed(java.awt.event.ActionEvent evt) { jButton2ActionPerformed(evt); } }); javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane()); getContentPane().setLayout(layout); layout.setHorizontalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addGroup(layout.createSequentialGroup() .addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, 323, Short.MAX_VALUE) .addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 81, javax.swing.GroupLayout.PREFERRED_SIZE))) .addContainerGap()) ); layout.setVerticalGroup( layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING) .addGroup(layout.createSequentialGroup() .addContainerGap() .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE) .addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED) .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE) .addComponent(jButton1) .addComponent(jButton2)) .addContainerGap()) ); pack(); }// //GEN-END:initComponents private void jPanel1MouseClicked(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jPanel1MouseClicked }//GEN-LAST:event_jPanel1MouseClicked private void jPanel1ComponentResized(java.awt.event.ComponentEvent evt) {//GEN-FIRST:event_jPanel1ComponentResized offScrImg = createImage(jPanel1.getWidth(), jPanel1.getHeight()); offScrGraph = offScrImg.getGraphics(); repain(); }//GEN-LAST:event_jPanel1ComponentResized private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton1ActionPerformed play = !play; if(play) jButton1.setText("Pause"); else jButton1.setText("Play"); repain(); }//GEN-LAST:event_jButton1ActionPerformed private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_jButton2ActionPerformed currentMove = new boolean[hei][wid]; repain(); }//GEN-LAST:event_jButton2ActionPerformed private void jPanel1MouseDragged(java.awt.event.MouseEvent evt) {//GEN-FIRST:event_jPanel1MouseDragged int j = wid * evt.getX() / jPanel1.getWidth(); int i = hei * evt.getY() / jPanel1.getHeight(); if(SwingUtilities.isLeftMouseButton(evt)){ currentMove[i][j] = true; }else currentMove[i][j] = false; repain(); }//GEN-LAST:event_jPanel1MouseDragged public static void main(String args[]) { // /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel. * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html */ try { for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) { if ("Nimbus".equals(info.getName())) { javax.swing.UIManager.setLookAndFeel(info.getClassName()); break; } } } catch (ClassNotFoundException ex) { java.util.logging.Logger.getLogger(GameOfLife.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (InstantiationException ex) { java.util.logging.Logger.getLogger(GameOfLife.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (IllegalAccessException ex) { java.util.logging.Logger.getLogger(GameOfLife.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } catch (javax.swing.UnsupportedLookAndFeelException ex) { java.util.logging.Logger.getLogger(GameOfLife.class.getName()).log(java.util.logging.Level.SEVERE, null, ex); } // java.awt.EventQueue.invokeLater(new Runnable() { public void run() { new GameOfLife().setVisible(true); } }); } // Variables declaration - do not modify//GEN-BEGIN:variables private javax.swing.JButton jButton1; private javax.swing.JButton jButton2; private javax.swing.JPanel jPanel1; // End of variables declaration//GEN-END:variables } 

Answer 1

这是使用相关代码示例完成的方法。

 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; private static int generation = 0; 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; JPanel ui = new JPanel(new BorderLayout(4, 4)); final JLabel generationLabel = new JLabel("0", JLabel.CENTER); ui.add(generationLabel, BorderLayout.PAGE_START); final GameOfLife[][] biosphere = new GameOfLife[s][s]; final JPanel gui = new JPanel(new GridLayout(s, s, 2, 2)); ui.add(gui); 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]); } } generationLabel.setText("Generation: " + generation++); gui.repaint(); } }; Timer timer = new Timer(50, al); timer.start(); JOptionPane.showMessageDialog(null, ui); timer.stop(); } } 

Answer 2

我想你一定得错了。 你永远不会初始化你的柜台。 更改

 public static int count; 

至

 public static int count = 0; 

并尝试发生的事情

Answer 3

这是我之前实现它的方式，我使用2个布尔数组来检查电路板的当前状态并将其保存到新数组，然后将新数组值复制到当前状态数组并重新绘制电路板：

 import java.awt.BorderLayout; import java.awt.Color; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.MouseEvent; import java.awt.event.MouseListener; import java.util.Random; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JSlider; import javax.swing.SwingUtilities; import javax.swing.Timer; import javax.swing.event.ChangeEvent; import javax.swing.event.ChangeListener; public class GameOfLife { public static final int ROWS = 30; public static final int COLS = 30; private JFrame frame; private JPanel pane; private Cell[][] cells; private boolean[][] currentState; private boolean[][] newState; private boolean isAlive = false; private JButton startButton; private JButton stopButton; private Timer timer; private JSlider slider; private JLabel label; private int interations; public static void main(String[] args) { SwingUtilities.invokeLater(() -> new GameOfLife().createAndShowGui()); } public void randomGeneration() { Random r = new Random(); for (int i = 0; i < ROWS; i++) { for (int j = 0; j < COLS; j++) { currentState[i][j] = r.nextBoolean(); cells[i][j].setAlive(currentState[i][j]); } } } public void createAndShowGui() { frame = new JFrame(getClass().getSimpleName()); slider = new JSlider(JSlider.HORIZONTAL, 0, 1000, 500); slider.addChangeListener(new ChangeListener() { @Override public void stateChanged(ChangeEvent e) { timer.setDelay(slider.getValue()); } }); label = new JLabel("Number of iterations: " + interations); timer = new Timer(slider.getValue(), listener); timer.setInitialDelay(slider.getValue()); pane = new JPanel(new GridLayout(ROWS, COLS)); cells = new Cell[ROWS][COLS]; currentState = new boolean[ROWS][COLS]; newState = new boolean[ROWS][COLS]; startButton = new JButton("Start"); stopButton = new JButton("Stop"); for (int i = 0; i < ROWS; i++) { for (int j = 0; j < COLS; j++) { currentState[i][j] = false; newState[i][j] = false; isAlive = currentState[i][j]; cells[i][j] = new Cell(isAlive); cells[i][j].setBorder(BorderFactory.createLineBorder(Color.BLACK)); cells[i][j].addMouseListener(mouseListener); pane.add(cells[i][j]); } } startButton.addActionListener(listener); stopButton.addActionListener(listener); frame.add(slider, BorderLayout.NORTH); frame.add(pane); frame.add(startButton, BorderLayout.WEST); frame.add(stopButton, BorderLayout.EAST); frame.add(label, BorderLayout.SOUTH); randomGeneration(); frame.pack(); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setLocationRelativeTo(null); } public void updateState(int i, int j) { currentState[i][j] = !currentState[i][j]; cells[i][j].setAlive(currentState[i][j]); cells[i][j].repaint(); } ActionListener listener = new ActionListener() { @Override public void actionPerformed(ActionEvent e) { if (e.getSource().equals(startButton)) { if (!timer.isRunning()) { timer.start(); } else { timer.restart(); } } else if (e.getSource().equals(stopButton)) { timer.stop(); } else { for (int i = 0; i < ROWS; i++) { for (int j = 0; j < COLS; j++) { int neighbors = 0; if (i - 1 > 0) { if (j - 1 > 0) { if (currentState[i - 1][j - 1]) { neighbors++; } } if (j + 1 < COLS) { if (currentState[i - 1][j + 1]) { neighbors++; } } if (currentState[i - 1][j]) { neighbors++; } } if (i + 1 < ROWS) { if (j - 1 > 0) { if (currentState[i + 1][j - 1]) { neighbors++; } } if (j + 1 < COLS) { if (currentState[i + 1][j + 1]) { neighbors++; } } if (currentState[i + 1][j]) { neighbors++; } } if (j - 1 > 0) { if (currentState[i][j - 1]) { neighbors++; } } if (j + 1 < COLS) { if (currentState[i][j + 1]) { neighbors++; } } if (currentState[i][j]) { if (neighbors < 2 || neighbors >= 4) { newState[i][j] = false; } else { newState[i][j] = true; } } else { if (neighbors == 3) { newState[i][j] = true; } } } } for (int i = 0; i < ROWS; i++) { for (int j = 0; j < COLS; j++) { currentState[i][j] = newState[i][j]; cells[i][j].setAlive(currentState[i][j]); cells[i][j].revalidate(); cells[i][j].repaint(); } } interations++; label.setText("Number of iterations: " + interations); pane.revalidate(); pane.repaint(); } } }; MouseListener mouseListener = new MouseListener() { @Override public void mouseReleased(MouseEvent e) { } @Override public void mousePressed(MouseEvent e) { } @Override public void mouseExited(MouseEvent e) { } @Override public void mouseEntered(MouseEvent e) { } @Override public void mouseClicked(MouseEvent e) { for (int i = 0; i < ROWS; i++) { for (int j = 0; j < COLS; j++) { if (e.getSource().equals(cells[i][j])) { updateState(i, j); break; } } } } }; } @SuppressWarnings("serial") class Cell extends JPanel { private boolean isAlive; public Cell(boolean isAlive) { this.isAlive = isAlive; } public boolean isAlive() { return isAlive; } public void setAlive(boolean isAlive) { this.isAlive = isAlive; } @Override public Dimension getPreferredSize() { return new Dimension(20, 20); } @Override public Color getBackground() { return isAlive ? Color.GREEN : Color.GRAY; } } 

它还包括一个JSlider来管理处理速度：

玩得开心，注意我使用了Swing Timer而不是你正在使用的Util Timer 。