完整的贪吃蛇(蛇吃蛋)Java源代码

import java.awt.Color; import java.awt.Component; import java.awt.Graphics; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.KeyEvent; import java.awt.event.KeyListener; import java.util.ArrayList; import javax.swing.BorderFactory; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JPanel; public class SnakeGame { public static void main(String[] args) { SnakeFrame frame = new SnakeFrame(); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.setVisible(true); } } // ----------记录状态的线程 class StatusRunnable implements Runnable { public StatusRunnable(Snake snake, JLabel statusLabel, JLabel scoreLabel) { this.statusLabel = statusLabel; this.scoreLabel = scoreLabel; this.snake = snake; } public void run() { String sta = ""; String spe = ""; while (true) { switch (snake.status) { case Snake.RUNNING: sta = "Running"; break; case Snake.PAUSED: sta = "Paused"; break; case Snake.GAMEOVER: sta = "GameOver"; break; } statusLabel.setText(sta); scoreLabel.setText("" + snake.score); try { Thread.sleep(100); } catch (Exception e) { } } } private JLabel scoreLabel; private JLabel statusLabel; private Snake snake; } // ----------蛇运动以及记录分数的线程 class SnakeRunnable implements Runnable { public SnakeRunnable(Snake snake, Component component) { this.snake = snake; this.component = component; } public void run() { while (true) { try { snake.move(); component.repaint(); Thread.sleep(snake.speed); } catch (Exception e) { } } } private Snake snake; private Component component; } class Snake { boolean isRun;// ---------是否运动中 ArrayList<Node> body;// -----蛇体 Node food;// --------食物 int derection;// --------方向 int score; int status; int speed; public static final int SLOW = 500; public static final int MID = 300; public static final int FAST = 100; public static final int RUNNING = 1; public static final int PAUSED = 2; public static final int GAMEOVER = 3; public static final int LEFT = 1; public static final int UP = 2; public static final int RIGHT = 3; public static final int DOWN = 4; public Snake() { speed = Snake.SLOW; score = 0; isRun = false; status = Snake.PAUSED; derection = Snake.RIGHT; body = new ArrayList<Node>(); body.add(new Node(60, 20)); body.add(new Node(40, 20)); body.add(new Node(20, 20)); makeFood(); } // ------------判断食物是否被蛇吃掉 // -------如果食物在蛇运行方向的正前方，并且与蛇头接触，则被吃掉 private boolean isEaten() { Node head = body.get(0); if (derection == Snake.RIGHT && (head.x + Node.W) == food.x && head.y == food.y) return true; if (derection == Snake.LEFT && (head.x - Node.W) == food.x && head.y == food.y) return true; if (derection == Snake.UP && head.x == food.x && (head.y - Node.H) == food.y) return true; if (derection == Snake.DOWN && head.x == food.x && (head.y + Node.H) == food.y) return true; else return false; } // ----------是否碰撞 private boolean isCollsion() { Node node = body.get(0); // ------------碰壁 if (derection == Snake.RIGHT && node.x == 280) return true; if (derection == Snake.UP && node.y == 0) return true; if (derection == Snake.LEFT && node.x == 0) return true; if (derection == Snake.DOWN && node.y == 380) return true; // --------------蛇头碰到蛇身 Node temp = null; int i = 0; for (i = 3; i < body.size(); i++) { temp = body.get(i); if (temp.x == node.x && temp.y == node.y) break; } if (i < body.size()) return true; else return false; } // -------在随机的地方产生食物 public void makeFood() { Node node = new Node(0, 0); boolean isInBody = true; int x = 0, y = 0; int X = 0, Y = 0; int i = 0; while (isInBody) { x = (int) (Math.random() * 15); y = (int) (Math.random() * 20); X = x * Node.W; Y = y * Node.H; for (i = 0; i < body.size(); i++) { if (X == body.get(i).x && Y == body.get(i).y) break; } if (i < body.size()) isInBody = true; else isInBody = false; } food = new Node(X, Y); } // ---------改变运行方向 public void changeDerection(int newDer) { if (derection % 2 != newDer % 2)// -------如果与原来方向相同或相反，则无法改变 derection = newDer; } public void move() { if (isEaten()) {// -----如果食物被吃掉 body.add(0, food);// --------把食物当成蛇头成为新的蛇体 score += 10; makeFood();// --------产生食物 } else if (isCollsion())// ---------如果碰壁或自身 { isRun = false; status = Snake.GAMEOVER;// -----结束 } else if (isRun) {// ----正常运行（不吃食物，不碰壁，不碰自身） Node node = body.get(0); int X = node.x; int Y = node.y; // ------------蛇头按运行方向前进一个单位 switch (derection) { case 1: X -= Node.W; break; case 2: Y -= Node.H; break; case 3: X += Node.W; break; case 4: Y += Node.H; break; } body.add(0, new Node(X, Y)); // ---------------去掉蛇尾 body.remove(body.size() - 1); } } } // ---------组成蛇身的单位，食物 class Node { public static final int W = 20; public static final int H = 20; int x; int y; public Node(int x, int y) { this.x = x; this.y = y; } } // ------画板 class SnakePanel extends JPanel { Snake snake; public SnakePanel(Snake snake) { this.snake = snake; } public void paintComponent(Graphics g) { super.paintComponent(g); Node node = null; for (int i = 0; i < snake.body.size(); i++) {// ---红蓝间隔画蛇身 if (i % 2 == 0) g.setColor(Color.blue); else g.setColor(Color.yellow); node = snake.body.get(i); g.fillRect(node.x, node.y, node.H, node.W);// *******************试用********************* } node = snake.food; g.setColor(Color.red); g.fillRect(node.x, node.y, node.H, node.W); } } class SnakeFrame extends JFrame { private JLabel statusLabel; private JLabel speedLabel; private JLabel scoreLabel; private JPanel snakePanel; private Snake snake; private JMenuBar bar; JMenu gameMenu; JMenu helpMenu; JMenu speedMenu; JMenuItem newItem; JMenuItem pauseItem; JMenuItem beginItem; JMenuItem helpItem; JMenuItem aboutItem; JMenuItem slowItem; JMenuItem midItem; JMenuItem fastItem; public SnakeFrame() { init(); ActionListener l = new ActionListener() { public void actionPerformed(ActionEvent e) { if (e.getSource() == pauseItem) snake.isRun = false; if (e.getSource() == beginItem) snake.isRun = true; if (e.getSource() == newItem) { newGame(); } // ------------菜单控制运行速度 if (e.getSource() == slowItem) { snake.speed = Snake.SLOW; speedLabel.setText("Slow"); } if (e.getSource() == midItem) { snake.speed = Snake.MID; speedLabel.setText("Mid"); } if (e.getSource() == fastItem) { snake.speed = Snake.FAST; speedLabel.setText("Fast"); } } }; pauseItem.addActionListener(l); beginItem.addActionListener(l); newItem.addActionListener(l); aboutItem.addActionListener(l); slowItem.addActionListener(l); midItem.addActionListener(l); fastItem.addActionListener(l); addKeyListener(new KeyListener() { public void keyPressed(KeyEvent e) { switch (e.getKeyCode()) { // ------------方向键改变蛇运行方向 case KeyEvent.VK_DOWN:// snake.changeDerection(Snake.DOWN); break; case KeyEvent.VK_UP:// snake.changeDerection(Snake.UP); break; case KeyEvent.VK_LEFT:/