[原创]Java贪食蛇2015代码与实例

最近我做了一个贪食蛇的java小程序，加了几个功能，
不过总体很简单的demo，没有写什么注释，主要有以下特点：
允许用户保存名字，并独立存档写入磁盘。
每次启动和服务器进行通信，检查并显示信息。
允许空格减速，但会耗费积分。
分数等级越高，蛇的长度和速度越快，难度越大。
以下是预览图：
以下是源代码:
package org.dmjsz.entity;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.util.LinkedList;

import org.dmjsz.listener.SnakeListener;
import org.dmjsz.util.Global;

public class Snake {
	private boolean life = true;
	private SnakeListener snakeListener;
	public static final int UP = 1;
	public static final int DOWN = -1;
	public static final int LEFT = 3;
	public static final int RIGHT = -3;
	public static int speed = 400;
	private Point tail;
	private int oldDirection, newDirection;
	private LinkedList body = new LinkedList();

	public Snake() {
		init();
	}

	public void init() {
		int x = Global.WIDTH / 2;
		int y = Global.HEIGHT / 2;
		for (int i = 0; i < 3; i++) {
			body.add(new Point(x - i, y));
		}
		this.oldDirection = this.newDirection = RIGHT;
	}

	public void move() {
		tail = body.removeLast();
		int x = body.getFirst().x;
		int y = body.getFirst().y;
		if (this.oldDirection + this.newDirection != 0)
			this.oldDirection = this.newDirection;
		switch (oldDirection) {
		case UP:
			y--;
			if (y < 0)
				y = Global.HEIGHT - 1;
			break;
		case DOWN:
			y++;
			if (y >= Global.HEIGHT)
				y = 0;
			break;
		case LEFT:
			x--;
			if (x < 0)
				x = Global.WIDTH - 1;
			break;
		case RIGHT:
			x++;
			if (x >= Global.WIDTH)
				x = 0;
			break;

		}
		body.addFirst(new Point(x, y));
		System.out.println("moving");
	}

	public void eatFood(Food food) {
		body.addLast(tail);
		System.out.println("eating");
	}

	public void changeDirection(int direction) {
		this.newDirection = direction;
		System.out.println("changing");
	}

	public void drawMe(Graphics g) {
		System.out.println("printing itself");
		g.setColor(Color.blue);
		for (Point p : body) {
			g.fill3DRect(p.x * Global.CELL_SIZE, p.y * Global.CELL_SIZE, Global.CELL_SIZE, Global.CELL_SIZE, true);
		}
	}

	public int getBodySize() {
		return body.size();
	}

	public boolean isEatSelf() {
		for (int i = 1; i < body.size(); i++) {
			if (body.get(i).equals(getHead())) {
				return true;
			}

		}
		return false;
	}

	public void addSnakeListener(SnakeListener snakeListener) {
		if (snakeListener != null) {
			this.snakeListener = snakeListener;
		}
	}

	public void start() {
		new SnakeDriver().start();
	}

	public Point getHead() {
		return body.getFirst();

	}

	public void setLife(boolean life) {
		this.life = life;
	}

	public class SnakeDriver extends Thread {
		public void run() {
			while (life) {
				move();

				snakeListener.snakeMoved(Snake.this);
				try {
					Thread.sleep(speed);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}

			}

		}

	}
}

package org.dmjsz.entity;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import java.util.Random;

import org.dmjsz.util.Global;

public class Ground {
	private int[][] rocks = new int[Global.WIDTH][Global.HEIGHT];

	public Ground() {
		for (int y = 0; y < Global.HEIGHT; y++) {
			for (int x = 0; x < Global.WIDTH; x++) {
				if (y == 0 || y == Global.HEIGHT - 1)
					rocks[y][x] = 1;
				if (x == 0 || x == Global.WIDTH - 1)
					rocks[y][x] = 1;

			}
		}
	}

	public boolean isEatBySnake(Snake snake) {
		System.out.println("check the Snake " + "touth Ground or not");
		Point head = snake.getHead();
		for (int x = 0; x < Global.WIDTH; x++) {
			for (int y = 0; y < Global.HEIGHT; y++) {
				if (rocks[x][y] == 1 && head.x == x && head.y == y)
					return true;
			}
		}
		return false;
	}

	public void drawMe(Graphics g) {
		g.setColor(Color.yellow);
		for (int y = 0; y < Global.HEIGHT; y++) {
			for (int x = 0; x < Global.WIDTH; x++) {
				if (rocks[y][x] == 1) {
					g.fill3DRect(x * Global.CELL_SIZE, y * Global.CELL_SIZE, Global.CELL_SIZE, Global.CELL_SIZE, true);
				}
			}
		}
		System.out.println("Ground is printing itself");
	}

	public Point getPoint() {
		int x, y;
		do {
			x = new Random().nextInt(Global.WIDTH);
			y = new Random().nextInt(Global.HEIGHT);

		} while (rocks[x][y] == 1);
		return new Point(x, y);

	}
}


package org.dmjsz.entity;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Point;
import org.dmjsz.control.Controller;
import org.dmjsz.util.Global;

public class Food extends Point {

	private static final long serialVersionUID = 1L;
	public static int count = 0;

	public void drawMe(Graphics g) {
		g.setColor(Color.red);
		g.fill3DRect(x * Global.CELL_SIZE, y * Global.CELL_SIZE, Global.CELL_SIZE, Global.CELL_SIZE, true);

		System.out.println("Food is Drawing itself");

	}

	public boolean isEatBySnake(Snake snake) {
		Point head = snake.getHead();
		if (this.equals(head))
			return true;
		return false;
	}

	public void addFood(Point p) {
		this.x = p.x;
		this.y = p.y;
		count++;
		Controller c = new Controller();
		c.gameSpeed();

	}

	public static int getCount() {
		return count;
	}

	public static void setCount(int m) {
		count = count - m;
	}
}


package org.dmjsz.entity;

import java.awt.Graphics;

import javax.swing.JPanel;

public class GamePanel extends JPanel {

	private static final long serialVersionUID = 1L;
	private Snake snake;
	private Food food;
	private Ground ground;

	public void display(Snake snake, Food food, Ground ground) {
		System.out.println("Panel is displaying");
		this.snake = snake;
		this.food = food;
		this.ground = ground;
		repaint();
	}

	@Override
	protected void paintComponent(Graphics g) {
		super.paintComponent(g);
		if (snake != null && food != null && ground != null) {
			snake.drawMe(g);
			food.drawMe(g);
			ground.drawMe(g);
		}
	}
}


package org.dmjsz.control;

import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.io.IOException;
import org.dmjsz.entity.*;
import org.dmjsz.listener.SnakeListener;
import org.dmjsz.test.ScorePanel;

public class Controller extends KeyAdapter implements SnakeListener {
	private Snake snake;
	private Food food;
	private Ground ground;
	private GamePanel gamePanel;

	public Controller() {
	}

	public Controller(Snake snake, Food food, Ground ground, GamePanel gamePanel) {
		super();
		this.snake = snake;
		this.food = food;
		this.ground = ground;
		this.gamePanel = gamePanel;
	}

	@Override
	public void keyPressed(KeyEvent e) {
		int Keycode = e.getKeyCode();
		switch (Keycode) {
		case KeyEvent.VK_UP:
			snake.changeDirection(Snake.UP);
			break;
		case KeyEvent.VK_DOWN:
			snake.changeDirection(Snake.DOWN);
			break;
		case KeyEvent.VK_LEFT:
			snake.changeDirection(Snake.LEFT);
			break;
		case KeyEvent.VK_RIGHT:
			snake.changeDirection(Snake.RIGHT);
			break;
		case KeyEvent.VK_SPACE:
			slowDown();
			break;
		}
	}

	@Override
	public void snakeMoved(Snake snake) {
		System.out.println("checking");
		if (food.isEatBySnake(snake)) {
			snake.eatFood(food);
			food.addFood(ground.getPoint());
		}
		if (ground.isEatBySnake(snake)) {
			snake.setLife(false);
			overGame();
		}
		if (snake.isEatSelf()) {
			snake.setLife(false);
			overGame();
		}
		gamePanel.display(snake, food, ground);
	}

	public void startGame() {
		snake.start();
		food.addFood(ground.getPoint());

	}

	public void overGame() {
		try {
			new ScorePanel();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	public void gameSpeed() {
		switch ((int) (Food.getCount() / 3)) {
		case 1:
			Snake.speed = 350;
			break;
		case 2:
			Snake.speed = 300;
			break;
		case 3:
			Snake.speed = 280;
			break;
		case 4:
			Snake.speed = 260;
			break;
		case 5:
			Snake.speed = 240;
			break;
		case 6:
			Snake.speed = 220;
			break;
		case 7:
			Snake.speed = 200;
			break;
		case 8:
			Snake.speed = 165;
			break;
		case 9:
			Snake.speed = 135;
			break;
		case 10:
			Snake.speed = 110;
			break;
		case 11:
			Snake.speed = 90;
			break;
		case 12:
			Snake.speed = 80;
			break;
		case 13:
			Snake.speed = 75;
			break;
		case 14:
			Snake.speed = 70;
			break;
		case 15:
			Snake.speed = 65;
			break;
		case 16:
			Snake.speed = 60;
			break;
		case 17:
			Snake.speed = 55;
			break;
		case 18:
			Snake.speed = 50;
			break;
		case 19:
			Snake.speed = 45;
			break;
		case 20:
			Snake.speed = 30;
			break;
		case 21:
			Snake.speed = 10;
			break;
			
		}
	}

	public void slowDown() {
		if(Food.getCount()>0){
		Snake.speed += 100;
		Food.setCount(5);}
	}
}

package org.dmjsz.listener;

import org.dmjsz.entity.Snake;

public interface SnakeListener {
	public void snakeMoved(Snake snake);
}

package org.dmjsz.util;

public class Global {
	public static final int CELL_SIZE = 15;
	public static final int WIDTH = 20;
	public static final int HEIGHT = 20;

}

package org.dmjsz.test;

import java.awt.BorderLayout;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.ImageIcon;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class getName extends JFrame {

	private static final long serialVersionUID = 1L;
	private JTextField textField;

	public getName() {
		getContentPane().setLayout(new BorderLayout(0, 0));
		JPanel panel = new ImagePanel();
		getContentPane().add(panel);
		panel.setLayout(null);

		final JLabel n1 = new JLabel("贪食蛇2015");
		n1.setBounds(70, 10, 200, 30);
		n1.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 30));

		final JLabel n2 = new JLabel("程序设计：Dmjsz");
		n2.setBounds(85, 50, 200, 20);
		n2.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 15));
		n2.setVisible(false);
		final JLabel n3 = new JLabel("程序美工：xxx");
		n3.setBounds(75, 70, 200, 20);
		n3.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 15));
		n3.setVisible(false);
		final JLabel n4 = new JLabel("程序测试：zzz");
		n4.setBounds(75, 90, 200, 20);
		n4.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 15));
		n4.setVisible(false);
		final JLabel n5 = new JLabel("yyyy");
		n5.setBounds(50, 110, 200, 20);
		n5.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 15));
		n5.setVisible(false);
		final JButton bt3 = new JButton("显示作者");
		bt3.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				n2.setVisible(true);
				n3.setVisible(true);
				n4.setVisible(true);
				n5.setVisible(true);
			}
		});
		bt3.setBounds(50, 250, 200, 30);
		panel.add(n1);
		panel.add(n2);
		panel.add(n3);
		panel.add(n4);
		panel.add(n5);
		panel.add(bt3);
		final JLabel jl = new JLabel("请输入昵称以存档：");
		jl.setBounds(50, 145, 200, 20);
		jl.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 20));
		panel.add(jl);
		textField = new JTextField();
		textField.setBounds(50, 170, 200, 20);
		panel.add(textField);
		textField.setColumns(10);
		final JButton bt = new JButton("确认名称");
		bt.setBounds(50, 210, 200, 30);
		panel.add(bt);
		final JButton bt2 = new JButton("获取更新");
		bt2.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				new getUpdata();
				setVisible(false);
			}
		});
		bt2.setBounds(50, 250, 200, 30);
		bt2.setVisible(false);
		panel.add(bt2);
		bt.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				bt.setEnabled(false);
				textField.setEnabled(false);
				bt2.setVisible(true);
				bt3.setVisible(false);
				bt.setText("已完成存档");
				jl.setText("完成存档");
				ScorePanel.username = textField.getText();
			}
		});
		setLocationRelativeTo(null);
		setBounds(500, 200, 335, 375);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setVisible(true);
		setTitle("确认昵称");
	}

	public static void main(String[] args) {

		new getName();

	}

	class ImagePanel extends JPanel {

		private static final long serialVersionUID = 1L;

		protected void paintComponent(Graphics g) {
			super.paintComponent(g);
			ImageIcon icon = new ImageIcon("base/snake.dll");
			g.drawImage(icon.getImage(), 0, 0, null);
		}
	}
}

package org.dmjsz.test;

import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.HttpURLConnection;
import java.net.URL;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextArea;

import org.dmjsz.util.Global;

public class getUpdata extends JFrame {

	private static final long serialVersionUID = 1L;

	public static void main(String[] args) {
		new getUpdata();
	}

	getUpdata() {
		final JFrame frame = new JFrame("连接远程服务器中...");
		setLayout(null);
		frame.setBounds(100, 100, Global.CELL_SIZE * Global.WIDTH + 15, Global.CELL_SIZE * Global.HEIGHT + 35);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setLocationRelativeTo(null);
		JTextArea jt = new JTextArea();
		jt.setBounds(0, 0, 200, 100);
		final JButton bt = new JButton("开始游戏");
		bt.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				new UI();
				frame.setVisible(false);

			}
		});
		bt.setBounds(0, 100, 200, 100);
		frame.add(jt);
		frame.add(bt, BorderLayout.SOUTH);
		jt.setLineWrap(true);
		frame.setVisible(true);
		try {

			jt.setText(inf());
			frame.setTitle("更新信息");
		} catch (IOException e) {
			jt.setText("获取远程服务器信息失败，请检查你的网络连接！");
		}
	}

	String inf() throws IOException {
		URL url = new URL("http://www.dmjsz.com/snakegame");
		HttpURLConnection conn = (HttpURLConnection) url.openConnection();
		InputStream inputStream = conn.getInputStream();
		byte[] getData = readInputStream(inputStream);
		String data = new String(getData, "gb2312");
		System.out.println(data);
		return data;

	}

	public static byte[] readInputStream(InputStream inputStream) throws IOException {
		byte[] buffer = new byte[1024];
		int len = 0;
		ByteArrayOutputStream bos = new ByteArrayOutputStream();
		while ((len = inputStream.read(buffer)) != -1) {
			bos.write(buffer, 0, len);
		}
		bos.close();
		return bos.toByteArray();
	}

}

package org.dmjsz.test;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Font;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import java.io.Reader;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JTextArea;

import org.dmjsz.entity.Food;
import org.dmjsz.entity.Snake;
import org.dmjsz.util.Global;

public class ScorePanel extends JFrame {
	public static String username;
	private static final long serialVersionUID = 1L;
	private FileInputStream fis;

	public ScorePanel() throws IOException {
		final JFrame frame = new JFrame("游戏结束(看不到结果请调整窗口大小)");
		setLayout(new BorderLayout());
		frame.setBounds(1000, 100, Global.CELL_SIZE * Global.WIDTH + 15, Global.CELL_SIZE * Global.HEIGHT + 35);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setLocationRelativeTo(null);
		frame.setVisible(true);

		Container c = new Container();
		c.setLayout(new GridLayout(5, 1, 10, 10));

		JLabel jl0 = new JLabel("游戏结束", JLabel.CENTER);
		jl0.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 20));
		JLabel jl1 = new JLabel("得分：" + Food.getCount() * 175, JLabel.CENTER);
		jl1.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 20));
		JLabel jl2 = new JLabel("", JLabel.CENTER);
		jl2.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 20));
		Reader reader = null;
		BufferedReader br = null;

		try {
			reader = new FileReader("data/Snake_" + username + ".snake");
			br = new BufferedReader(reader);
			StringBuffer sb = new StringBuffer();
			String data = null;
			while ((data = br.readLine()) != null) {
				sb.append(data);

				if ((Integer.valueOf(data).intValue()) - Food.getCount() * 175 > 0) {
					jl2.setText("你的最高分：" + data);
				} else {
					jl2.setText("你的最高分：" + Food.getCount() * 175);

					FileOutputStream out = new FileOutputStream("data/Snake_" + username + ".snake");
					out.write(((Food.getCount() * 175) + "").getBytes());
					out.close();
				}

			}
		} catch (IOException e) {
			jl2.setText("你的最高分：" + Food.getCount() * 175);
			FileOutputStream out = new FileOutputStream("data/Snake_" + username + ".snake");
			out.write(((Food.getCount() * 175) + "").getBytes());
			out.close();
		} finally {
			try {
				reader.close();
				br.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}

		JLabel jl3 = new JLabel("等级：" + Food.getCount() / 3, JLabel.CENTER);
		jl3.setFont(new Font("宋体", Font.BOLD | Font.ITALIC, 20));
		JButton jb1 = new JButton("详细战绩");
		jb1.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				frame.setVisible(false);
				jump();
			}

		});
		String allContent = "得分：" + Food.getCount() * 175 + "等级：" + (Food.getCount() / 3) + "===";
		FileOutputStream out = new FileOutputStream("data/Snake_" + username + "_all" + ".snake", true);
		out.write((allContent).getBytes());
		out.close();
		c.add(jl0);
		c.add(jl1);
		c.add(jl2);
		c.add(jl3);
		c.add(jb1);
		frame.add(c);
	}

	public void jump() {
		final JFrame jf2 = new JFrame("详细战绩");
		jf2.setBounds(1000, 100, Global.CELL_SIZE * Global.WIDTH + 15, Global.CELL_SIZE * Global.HEIGHT + 35);
		jf2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		jf2.setLocationRelativeTo(null);
		jf2.setVisible(true);
		Container c = new Container();
		c.setLayout(null);
		JTextArea jta = new JTextArea();
		String str = "";
		try {
			File file = new File("data/Snake_" + username + "_all" + ".snake");
			fis = new FileInputStream(file);

			byte[] bytes = new byte[1024];
			int length = 0;
			while ((length = fis.read(bytes)) != -1) {
				str += new String(bytes, 0, length);
			}

			System.out.println(str);

		} catch (FileNotFoundException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}

		jta.setText(str);
		jta.setLineWrap(true);
		jta.setBounds(0, 0, Global.CELL_SIZE * Global.WIDTH + 80, Global.CELL_SIZE * Global.HEIGHT - 10);
		JButton jbn1 = new JButton("再来一局");
		jbn1.addActionListener(new ActionListener() {

			@Override
			public void actionPerformed(ActionEvent e) {
				new UI();
				jf2.setVisible(false);
				Food.setCount(Food.getCount());
				Snake.speed=400;

			}
		});
		jta.setBounds(0, 0, Global.CELL_SIZE * Global.WIDTH, Global.CELL_SIZE * Global.HEIGHT - 60);
		jbn1.setBounds(0, Global.CELL_SIZE * Global.HEIGHT - 50, Global.CELL_SIZE * Global.WIDTH, 50);
		c.add(jta);
		c.add(jbn1);
		jf2.add(c);
	}
}


package org.dmjsz.test;

import java.awt.BorderLayout;
import javax.swing.JFrame;

import org.dmjsz.control.Controller;
import org.dmjsz.entity.Food;
import org.dmjsz.entity.GamePanel;
import org.dmjsz.entity.Ground;
import org.dmjsz.entity.Snake;
import org.dmjsz.util.Global;

public class UI extends JFrame {

	private static final long serialVersionUID = 1L;

	public UI() {

		Snake snake = new Snake();
		Food food = new Food();
		Ground ground = new Ground();
		GamePanel gamePanel = new GamePanel();
		Controller c = new Controller(snake, food, ground, gamePanel);
		snake.addSnakeListener(c);
		gamePanel.addKeyListener(c);
		JFrame frame = new JFrame("贪食蛇游戏  @Dmjsz");
		setLayout(new BorderLayout());
		frame.setBounds(1000, 100, Global.CELL_SIZE * Global.WIDTH + 15, Global.CELL_SIZE * Global.HEIGHT + 35);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setLocationRelativeTo(null);
		gamePanel.setFocusable(true);
		frame.add(gamePanel);
		c.startGame();
		frame.setVisible(true);
	}
}

/**
 * 贪食蛇游戏ver1.1
 * 作者： Dmjsz
 * 命名页背景图片来自网络
 * 程序设计及参与者版权所有
 * 转载署名，不得商用
 * 2015年05月
 **/

package org.dmjsz.test;

public class SnakeGameTest {
	public static void main(String[] args) {
		new getName();
	}
}
ひょうりゅ

[原创]Java贪食蛇2015代码与实例

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[原创]”漫魂立夏祭”—上海国际工业设计中心

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