贪吃蛇

代码如下

SE.java文件

import java.io.Serializable;/** * SE类--蛇的关节元素对象 * @author Administrator * */public class SE implements Serializable {private static final long serialVersionUID = -6058052882884632278L;/** * shift+alt+s  调出小菜单 * 自动生成： * 1--无参数构造器 * 2--全部参数构造器 * 3--setter和getter方法 * 4--重写hashCode和equals方法 * 5--重写toString方法 * 6--该类需要实现一个可序列化接口 serializable 并 添加可序列化的标识常量 */private int se_w ;private int se_h ;private int se_x ;private int se_y ;public SE() {super();// TODO Auto-generated constructor stub}public SE(int se_w, int se_h, int se_x, int se_y) {super();this.se_w = se_w;this.se_h = se_h;this.se_x = se_x;this.se_y = se_y;}public int getSe_w() {return se_w;}public void setSe_w(int se_w) {this.se_w = se_w;}public int getSe_h() {return se_h;}public void setSe_h(int se_h) {this.se_h = se_h;}public int getSe_x() {return se_x;}public void setSe_x(int se_x) {this.se_x = se_x;}public int getSe_y() {return se_y;}public void setSe_y(int se_y) {this.se_y = se_y;}@Overridepublic int hashCode() {final int prime = 31;int result = 1;result = prime * result + se_h;result = prime * result + se_w;result = prime * result + se_x;result = prime * result + se_y;return result;}@Overridepublic boolean equals(Object obj) {if (this == obj)return true;if (obj == null)return false;if (getClass() != obj.getClass())return false;SE other = (SE) obj;if (se_h != other.se_h)return false;if (se_w != other.se_w)return false;if (se_x != other.se_x)return false;if (se_y != other.se_y)return false;return true;}@Overridepublic String toString() {return "SE [se_w=" + se_w + ", se_h=" + se_h + ", se_x=" + se_x+ ", se_y=" + se_y + "]";} }

Bean.java文件

import java.io.Serializable;/* * 豆子类 */public class Bean implements Serializable{private static final long serialVersionUID = -8929116071517599107L;private int b_w ;private int b_h ;private int b_x ;private int b_y ;private int b_r ; private int b_g ;private int b_b ;public Bean() {super();// TODO Auto-generated constructor stub}public Bean(int b_w, int b_h, int b_x, int b_y, int b_r, int b_g, int b_b) {super();this.b_w = b_w;this.b_h = b_h;this.b_x = b_x;this.b_y = b_y;this.b_r = b_r;this.b_g = b_g;this.b_b = b_b;}public int getB_w() {return b_w;}public void setB_w(int b_w) {this.b_w = b_w;}public int getB_h() {return b_h;}public void setB_h(int b_h) {this.b_h = b_h;}public int getB_x() {return b_x;}public void setB_x(int b_x) {this.b_x = b_x;}public int getB_y() {return b_y;}public void setB_y(int b_y) {this.b_y = b_y;}public int getB_r() {return b_r;}public void setB_r(int b_r) {this.b_r = b_r;}public int getB_g() {return b_g;}public void setB_g(int b_g) {this.b_g = b_g;}public int getB_b() {return b_b;}public void setB_b(int b_b) {this.b_b = b_b;}@Overridepublic int hashCode() {final int prime = 31;int result = 1;result = prime * result + b_b;result = prime * result + b_g;result = prime * result + b_h;result = prime * result + b_r;result = prime * result + b_w;result = prime * result + b_x;result = prime * result + b_y;return result;}@Overridepublic boolean equals(Object obj) {if (this == obj)return true;if (obj == null)return false;if (getClass() != obj.getClass())return false;Bean other = (Bean) obj;if (b_b != other.b_b)return false;if (b_g != other.b_g)return false;if (b_h != other.b_h)return false;if (b_r != other.b_r)return false;if (b_w != other.b_w)return false;if (b_x != other.b_x)return false;if (b_y != other.b_y)return false;return true;}@Overridepublic String toString() {return "Bean [b_w=" + b_w + ", b_h=" + b_h + ", b_x=" + b_x + ", b_y="+ b_y + ", b_r=" + b_r + ", b_g=" + b_g + ", b_b=" + b_b + "]";}}

SnakeMainFrame.java文件：

import java.awt.Color;import java.awt.Graphics;import java.awt.event.KeyEvent;import java.awt.event.KeyListener;import java.util.LinkedList;import java.util.Random;import java.util.Timer;import java.util.TimerTask;import javax.swing.JFrame;import javax.swing.JOptionPane;public class SnakeMainFrame extends JFrame{private static final long serialVersionUID = 4162523224330812384L;private static final String UP = "UP" ;private final static String DOWN = "DOWN" ;private static final String LEFT = "LEFT" ;private static final String RIGHT = "RIGHT" ;private static final String STOP = "STOP" ;private int fw = 400 ;private int fh = 400 ;private String direction = "UP" ;  //取值有四个方向  UP DOWN LEFT RIGHTpublic void init(){ //初始化//this.setAlwaysOnTop(true);this.setSize(fw, fh);this.setUndecorated(true);this.getContentPane().setBackground(Color.BLACK);this.setLocationRelativeTo(null);this.addKeyListener(new KeyListener() {@Overridepublic void keyTyped(KeyEvent e) {}@Overridepublic void keyReleased(KeyEvent e) {}@Overridepublic void keyPressed(KeyEvent e) {if(KeyEvent.VK_SPACE==e.getKeyCode()){ direction = STOP ;}if(KeyEvent.VK_LEFT==e.getKeyCode()&&direction!=RIGHT){ //说明你按下的键是  <--direction = LEFT ;}if(KeyEvent.VK_RIGHT==e.getKeyCode()&&direction!=LEFT){ direction = RIGHT ;}if(KeyEvent.VK_UP==e.getKeyCode()&&direction!=DOWN){ direction = UP ;}if(KeyEvent.VK_DOWN==e.getKeyCode()&&direction!=UP){ direction = DOWN ;}}});this.initSE_m();//调用初始化蛇this.initBean(); //调用初始化豆子this.timer.schedule(timertask, 1000/*延时时间 如果不想延时 设为0毫秒*/, 100/*执行的频率 毫秒数*/);this.setVisible(true);}/** * 产生豆子 */private int b_w = 20 ; private int b_h = 20 ;private int b_x ;private int b_y ;private int b_r ; private int b_g ;private int b_b ;private Random rand = new Random();private Bean bean = null ;public void initBean_data(){b_x = rand.nextInt(fw/20)*20;b_y = rand.nextInt(fh/20)*20;b_r = rand.nextInt(256);b_g = rand.nextInt(256);b_b = rand.nextInt(256);}//public Bean(int b_w, int b_h, int b_x, int b_y, int b_r, int b_g, int b_b) {public void initBean(){this.initBean_data();for(SE e:snake){if(e.getSe_x()==b_x&&e.getSe_y()==b_y){initBean_data();}}bean = new Bean(b_w,b_h,b_x,b_y,b_r,b_g,b_b);}/*产生蛇*/private int se_x = fw/2 ;private int se_y = fh/2 ;private int se_w = 20 ;private int se_h = 20 ;private SE se = null ;private LinkedList<SE> snake = new LinkedList<SE>();private Timer timer = new Timer();public void initSE(){//使用new关键字调用SE类的全部参数构造器创建一个SE实例（对象），//赋值给一个自定义的引用变量（引用该对象在堆内存中的首地址），//并指明该引用变量的类型se = new SE(se_w,se_h , se_x , se_y); //注意参数顺序se_y += se_h ;snake.add(se);}public void initSE_m(){snake.removeAll(snake);for (int i = 0; i < 3; i++) {initSE();}//System.out.println(snake);}@Overridepublic void paint(Graphics g) {super.paint(g);//画出豆子g.setColor(new Color(bean.getB_r(),bean.getB_g(),bean.getB_b()));g.fillRect(bean.getB_x(), bean.getB_y(), bean.getB_w(), bean.getB_h());if(!check(snake.get(0))){this.timer.cancel();int option = JOptionPane.showConfirmDialog(null,       "得分为："+(this.snake.size()-3), "是否继续？", JOptionPane.YES_NO_OPTION,       JOptionPane.WARNING_MESSAGE, null);     switch (option) {     case JOptionPane.YES_NO_OPTION: {    this.dispose();    new SnakeMainFrame();      break;     }     case JOptionPane.NO_OPTION:      System.exit(0);     }};//画出蛇for (int i = 0; i < snake.size() ; i++) {if(i==0){g.setColor(Color.RED);}else{g.setColor(Color.GREEN);}g.fill3DRect(snake.get(i).getSe_x(), snake.get(i).getSe_y(), snake.get(i).getSe_w(), snake.get(i).getSe_h(), true);}}public boolean check(SE se){for(int i = 1 ; i < snake.size() ; i++){SE e = snake.get(i);if(snake.getFirst().getSe_x()==e.getSe_x()&&e.getSe_y()==snake.getFirst().getSe_y()){return false;}}if(se.getSe_x()>fw||se.getSe_y()>fh||se.getSe_x()<0||se.getSe_y()<0){return false;}else{return true;}}public boolean collision(){if(snake.get(0).getSe_x()==bean.getB_x()&&snake.get(0).getSe_y()==bean.getB_y()){initBean();return true;}else{return false;}}TimerTask timertask = new TimerTask() { //这是一个执行计划 就是准备做的事情 具体事情的逻辑代码在run方法中@Overridepublic void run() {//将蛇的最后一个关节移除 获取头部数据，在头部数据的基础上创建一个新关节元素并添加到容器中、if(SnakeMainFrame.STOP.equalsIgnoreCase(direction)){}if(SnakeMainFrame.UP.equalsIgnoreCase(direction)){SE e = new SE(SnakeMainFrame.this.snake.get(0).getSe_w(),SnakeMainFrame.this.snake.get(0).getSe_h(),SnakeMainFrame.this.snake.get(0).getSe_x(),SnakeMainFrame.this.snake.get(0).getSe_y() - SnakeMainFrame.this.snake.get(0).getSe_h());if(!collision()){SnakeMainFrame.this.snake.removeLast();}snake.addFirst(e);repaint();//执行重画方法}if(SnakeMainFrame.DOWN.equalsIgnoreCase(direction)){SE e = new SE(SnakeMainFrame.this.snake.get(0).getSe_w(),SnakeMainFrame.this.snake.get(0).getSe_h(),SnakeMainFrame.this.snake.get(0).getSe_x(),SnakeMainFrame.this.snake.get(0).getSe_y() + SnakeMainFrame.this.snake.get(0).getSe_h());if(!collision()){SnakeMainFrame.this.snake.removeLast();}snake.addFirst(e);repaint();//执行重画方法}if(SnakeMainFrame.LEFT.equalsIgnoreCase(direction)){SE e = new SE(SnakeMainFrame.this.snake.get(0).getSe_w(),SnakeMainFrame.this.snake.get(0).getSe_h(),SnakeMainFrame.this.snake.get(0).getSe_x() -SnakeMainFrame.this.snake.get(0).getSe_w() ,SnakeMainFrame.this.snake.get(0).getSe_y());if(!collision()){SnakeMainFrame.this.snake.removeLast();}snake.addFirst(e);repaint();//执行重画方法}if(SnakeMainFrame.RIGHT.equalsIgnoreCase(direction)){SE e = new SE(SnakeMainFrame.this.snake.get(0).getSe_w(),SnakeMainFrame.this.snake.get(0).getSe_h(),SnakeMainFrame.this.snake.get(0).getSe_x() + SnakeMainFrame.this.snake.get(0).getSe_w() ,SnakeMainFrame.this.snake.get(0).getSe_y());if(!collision()){SnakeMainFrame.this.snake.removeLast();}snake.addFirst(e);repaint();//执行重画方法}}};public SnakeMainFrame() {this.init();}public static void main(String[] args) {new SnakeMainFrame();}}