使用java+Swing写的一个贪吃蛇小游戏.zip

/* * Created by JFormDesigner on Sat Jun 27 23:11:31 CST 2020 */ package com.domain; import java.awt.*; import java.awt.event.*; import java.beans.*; import java.io.FileInputStream; import java.io.IOException; import java.util.Objects; import java.util.Properties; import javax.swing.*; import javax.swing.border.*; /** * @author 123 */ public class Main extends JFrame { public static Main main = null; public static void main(String[] args) throws ClassNotFoundException, UnsupportedLookAndFeelException, InstantiationException, IllegalAccessException { main = new Main(); Snake.width = main.game.getWidth(); Snake.height = main.game.getHeight(); //启动检查 if(Snake.width % Snake.size != 0 && Snake.height % Snake.size != 0){ JOptionPane.showMessageDialog(null,"未知错误！","",JOptionPane.ERROR_MESSAGE); System.exit(-1); } } public Main() throws ClassNotFoundException, UnsupportedLookAndFeelException, InstantiationException, IllegalAccessException { String lookAndFeel = UIManager.getSystemLookAndFeelClassName(); UIManager.setLookAndFeel(lookAndFeel); Font font = new Font("微软雅黑", Font.PLAIN, 14); java.util.Enumeration keys = UIManager.getDefaults().keys(); while (keys.hasMoreElements()) { Object key = keys.nextElement(); Object value = UIManager.get(key); if (value instanceof javax.swing.plaf.FontUIResource) UIManager.put(key, font); } setVisible(true); setDefaultCloseOperation(EXIT_ON_CLOSE); initComponents(); game.setFocusable(true); //始终获得焦点 game.requestFocus(false); } private int lastChoose = 0; private int speed = Snake.NORMAL_SPEED; private void levelItemStateChanged(ItemEvent e) { // TODO add your code here if (e.getStateChange() == ItemEvent.SELECTED) { if (Objects.equals(level.getSelectedItem(), "自定义")) { String s = null; while (true) { s = JOptionPane.showInputDialog(null, "自定义速度（移动一次花费的时间）", speed); if (s == null) { level.setSelectedIndex(lastChoose); break; } else if (s.matches("\\d+") && Integer.parseInt(s) > 0) { speed = Integer.parseInt(s); break; }else{ JOptionPane.showMessageDialog(null,"请输入大于0的数字！","",JOptionPane.ERROR_MESSAGE); } } } else { lastChoose = level.getSelectedIndex(); } } } private void levelPropertyChange(PropertyChangeEvent e) { // TODO add your code here } public JPanel getGame() { return game; } public JButton getStart() { return start; } public JLabel getNowScore() { return nowScore; } public JLabel getMaxScore() { return maxScore; } private void startActionPerformed(ActionEvent e) { int speed = 0; if(level.getSelectedIndex() == 0){ speed = Snake.NORMAL_SPEED; }else if(level.getSelectedIndex() == 1){ speed = Snake.A_BIT_FAST_SPEED; }else if(level.getSelectedIndex() == 2){ speed = Snake.FAST_SPEED; }else if(level.getSelectedIndex() == 3){ speed = Snake.VERY_FAST_SPEED; }else if(level.getSelectedIndex() == 4){ speed = Snake.A_BIT_SLOW_SPEED; }else if(level.getSelectedIndex() == 5){ speed = Snake.SLOW_SPEED; }else if(level.getSelectedIndex() == 6){ speed = Snake.VERY_SLOW_SPEED; }else if(level.getSelectedIndex() == 7){ speed = this.speed; } // TODO add your code here if(Snake.isStart){ if(Snake.isStop){ Snake.toContinue(); start.setText("暂停"); Snake.isStop = false; }else{ Snake.stop(); start.setText("继续"); Snake.isStop = true; } }else{ Snake.start(speed); start.setText("暂停"); Snake.isStart = true; Snake.isStop = false; } } private void gameKeyPressed(KeyEvent e) { // TODO add your code here int code = e.getKeyCode(); if(code == 37 || code == 65){ //左 if(Snake.direction != Snake.EAST){ Snake.direction = Snake.WEST; } }else if(code == 38 || code==87){ //上 if(Snake.direction != Snake.SOUTH){ Snake.direction = Snake.NORTH; } }else if(code == 39 || code==68){ //右 if(Snake.direction != Snake.WEST){ Snake.direction = Snake.EAST; } }else if(code == 40 || code == 83){ //下 if(Snake.direction != Snake.NORTH){ Snake.direction = Snake.SOUTH; } } } private void initComponents() { // JFormDesigner - Component initialization - DO NOT MODIFY //GEN-BEGIN:initComponents control = new JPanel(); level = new JComboBox<>(); label1 = new JLabel(); start = new JButton(); label2 = new JLabel(); label3 = new JLabel(); nowScore = new JLabel(); maxScore = new JLabel(); game = new JPanel(); //======== this ======== setTitle("\u8d2a\u5403\u86c7"); setResizable(false); setBackground(Color.black); setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE); setForeground(new Color(0, 0, 2)); var contentPane = getContentPane(); contentPane.setLayout(null); //======== control ======== { control.setBorder(LineBorder.createBlackLineBorder()); control.setLayout(null); //---- level ---- level.setModel(new DefaultComboBoxModel<>(new String[] { "\u6b63\u5e38\u901f\u5ea6", "\u6709\u70b9\u5feb", "\u5f88\u5feb", "\u8d85\u7ea7\u5feb", "\u6709\u70b9\u6162", "\u5f88\u6162", "\u8d85\u7ea7\u6162", "\u81ea\u5b9a\u4e49" })); level.setFocusable(false); level.addItemListener(e -> levelItemStateChanged(e)); level.addPropertyChangeListener(e -> levelPropertyChange(e)); control.add(level); level.setBounds(85, 10, 115, level.getPreferredSize().height); //---- label1 ---- label1.setText("\u9009\u62e9\u96be\u5ea6\uff1a"); label1.setFocusable(false); control.add(label1); label1.setBounds(new Rectangle(new Point(15, 12), label1.getPreferredSize())); //---- start ---- start.setText("\u5f00\u59cb"); start.setFocusable(false); start.addActionListener(e -> startActionPerformed(e)); control.add(start); start.setBounds(210, 10, 90, start.getPreferredSize().height); //---- label2 ---- label2.setText("\u5f53\u524d\u5f97\u5206\uff1a"); label2.setFocusable(false); control.add(label2); label2.setBounds(new Rectangle(new Point(430, 15), label2.getPreferredSize())); //---- label3 ---- label3.setText("\u6700\u9ad8\u5f97\u5206\uff1a"); label3.setFocusable(false); control.add(label3); label3.setBounds(new Rectangle(new Point(560, 15), label3.getPreferredSize())); //---- nowScore ----