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文件大小: 16mb
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上传时间: 2015-09-17
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import java.awt.*; import javax.swing.*; @SuppressWarnings("serial") public class MainClass extends JFrame { ControlSnake control; Toolkit kit; Dimension dimen; public static void main(String[] args) { new MainClass("my snake"); } public MainClass(String s) { super(s); control = new ControlSnake(); control.setFocusable(true); kit = Toolkit.getDefaultToolkit(); dimen = kit.getScreenSize(); add(control); setLayout(new BorderLayout()); setLocation(dimen.width / 3, dimen.height / 3); // dimen.width/3,dimen.height/3 setSize(FWIDTH, FHEIGHT); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); setResizable(false); setVisible(true); } public static final int FWIDTH = 315; public static final int FHEIGHT = 380; } import java.util.*; import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.Timer; import java.util.Random; @SuppressWarnings("serial") public class ControlSnake extends JPanel implements ActionListener { Random rand; ArrayList list, listBody; String str, str1; static boolean key; int x, y, dx, dy, fx, fy, flag; int snakeBody; int speed; public ControlSnake() { snakeBody = 1; str = "上下左右方向键控制 P键暂停..."; str1 = "现在的长度为:" + snakeBody; key = true; flag = 1; speed = 700; rand = new Random(); list = new ArrayList(); listBody = new ArrayList(); x = 5; y = 5; list.add(new Point(x, y)); listBody.add(list.get(0)); dx = 10; dy = 0; fx = rand.nextInt(30) * 10 + 5;// 2 fy = rand.nextInt(30) * 10 + 5;// 2 setBackground(Color.WHITE); setSize(new Dimension(318, 380)); final Timer time = new Timer(speed, this); time.start(); addKeyListener(new KeyAdapter() { public void keyPressed(KeyEvent e) { if (e.getKeyCode() == 37) { dx = -10; dy = 0; } else if (e.getKeyCode() == 38) { dx = 0; dy = -10; } else if (e.getKeyCode() == 39) { dx = 10; dy = 0; } else if (e.getKeyCode() == 40) { dx = 0; dy = 10; } else if (e.getKeyCode() == 80) { if (flag % 2 == 1) { time.stop(); } if (flag % 2 == 0) { time.start(); } flag++; } } }); } public void paint(Graphics g) { g.setColor(Color.WHITE); g.fillRect(0, 0, 400, 400); g.setColor(Color.DARK_GRAY); g.drawLine(3, 3, 305, 3); g.drawLine(3, 3, 3, 305); g.drawLine(305, 3, 305, 305); g.drawLine(3, 305, 305, 305); g.setColor(Color.PINK); for (int i = 0; i < listBody.size(); i++) { g.fillRect(listBody.get(i).x, listBody.get(i).y, 9, 9); } g.fillRect(x, y, 9, 9); g.setColor(Color.ORANGE); g.fillRect(fx, fy, 9, 9); g.setColor(Color.DARK_GRAY); str1 = "现在的长度为:" + snakeBody; g.drawString(str, 10, 320); g.drawString(str1, 10, 335); } public void actionPerformed(ActionEvent e) { x += dx; y += dy; if (makeOut() == false) { JOptionPane.showMessageDialog(null, "重新开始......"); speed = 700; snakeBody = 1; x = 5; y = 5; list.clear(); list.add(new Point(x, y)); listBody.clear(); listBody.add(list.get(0)); dx = 10; dy = 0; } addPoint(x, y); if (x == fx && y == fy) { speed = (int) (speed * 0.8);//速度增加参数 if (speed < 200) { speed = 100; } fx = rand.nextInt(30) * 10 + 5;// 2 fy = rand.nextInt(30) * 10 + 5;// 2 snakeBody++;// 2 } // 2 repaint(); } public void addPoint(int xx, int yy) { // 动态的记录最新发生的50步以内的移动过的坐标 // 并画出最新的snakeBody if (list.size() < 100) {//蛇身长度最长为100 list.add(new Point(xx, yy)); } else { list.remove(0); list.add(new Point(xx, yy)); } if (snakeBody == 1) { listBody.remove(0); listBody.add(0, list.get(list.size() - 1)); } else { listBody.clear(); if (list.size() < snakeBody) { for (int i = list.size() - 1; i > 0; i--) { listBody.add(list.get(i)); } } else { for (int i = list.size() - 1; listBody.size() < snakeBody; i--) { listBody.add(list.get(i)); } } } } public boolean makeOut() { if ((x < 3 || y < 3) || (x > 305 || y > 305)) { return false; } for (int i = 0; i < listBody.size() - 1; i++) { for (int j = i + 1; j < listBody.size(); j++) { if (listBody.get(i).equals(listBody.get(j))) { return false; } } } return true; } } ...展开收缩
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