Java贪吃蛇游戏完善版

很认真的写的一个java版的贪吃蛇游戏，图形界面，支持菜单操作，键盘监听，可加速，减速，统计得分，设定运动速度，设定游戏背景颜色等！应该没有Bug了，因为全被我修改没了。

下面是项目各包及类的层次关系：

游戏的主要运行界面截图如下：

下面是部分代码，详细源码见此链接：贪吃蛇源码下载

Snake类：

package com.huowolf.entities; 

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

import com.huowolf.listener.SnakeListener;
import com.huowolf.util.Global; 

public class Snake { 

 //代表方向的常量
 public static final int UP = 1;
 public static final int DOWN = -1;
 public static final int LEFT = 2;
 public static final int RIGHT = -2; 

 //监听器组
 private Set<SnakeListener> listeners = new HashSet<SnakeListener>();
 //存储蛇的链表结构
 private LinkedList<Point> body = new LinkedList<Point>(); 

 private boolean life;  //是否活着
 private boolean pause;  //是否暂停游戏
 private int oldDirection,newDirection; //新，旧方向的引入（避免一次移动时间内的无效方向）
 private Point oldTail;  //旧的尾巴（在吃掉食物的时候使用）
 private int foodCount = 0; //吃掉食物的数量
 private Color headColor;
 private Color bodyColor;
 private int sleepTime; 

 public boolean isLife() {
 return life;
 }
 public int getSleepTime() {
 return sleepTime;
 } 

 public void setSleepTime(int sleepTime) {
 this.sleepTime = sleepTime;
 } 

 public void setHeadColor(Color headColor) {
 this.headColor = headColor;
 } 

 public void setBodyColor(Color bodyColor) {
 this.bodyColor = bodyColor;
 } 

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

 oldDirection = newDirection = RIGHT;
 foodCount = 0;
 life = true;
 pause = false; 

 if(sleepTime==0) {
 sleepTime = 300;
 }
 } 

 //清空蛇的节点的方法（用来开始一次新的游戏）
 public void clear() {
 body.clear();
 } 

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

 public boolean getPause() {
 return pause;
 } 

 public void setPause(boolean pause) {
 this.pause = pause;
 } 

 //用来改变pause常量的状态
 public void changePause() {
 pause = !pause;
 } 

 //蛇死掉的方法
 public void die() {
 life = false;
 } 

 //蛇移动的方法
 public void move() {
 if(!(oldDirection + newDirection==0)) {
 oldDirection = newDirection ;
 } 

 //去尾
 oldTail = body.removeLast();
 int x = body.getFirst().x;
 int y = body.getFirst().y; 

 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;
 } 

 Point newHead = new Point(x, y);
 //加头
 body.addFirst(newHead);
 } 

 //改变方向
 public void changeDirection(int direction) {
 newDirection = direction;
 } 

 //吃食物
 public void eatFood() {
 body.addLast(oldTail);
 foodCount++;
 } 

 //获取吃到的食物数量
 public int getFoodCount() {
 return foodCount;
 } 

 //蛇是否吃到了自己的身体
 public boolean isEatBody() {
 for(int i=1;i<body.size();i++) {
 if(body.get(i).equals(this.getHead()))
 return true;
 } 

 return false;
 } 

 //获取代表蛇头的节点
 public Point getHead() {
 return body.getFirst();
 } 

 //显示自己
 public void drawMe(Graphics g) {
 if(bodyColor==null) {
 g.setColor(new Color(0x3333FF));
 } else {
 g.setColor(bodyColor);
 } 

 for(Point p : body) { 

 g.fillRoundRect(p.x*Global.CELL_SIZE, p.y*Global.CELL_SIZE,
  Global.CELL_SIZE, Global.CELL_SIZE, 15,12 );
 }
 drawHead(g);
 } 

 //画蛇头
 public void drawHead(Graphics g) {
 if(headColor==null)
 g.setColor(Color.YELLOW);
 else {
 g.setColor(headColor);
 } 

 g.fillRoundRect(getHead().x * Global.CELL_SIZE, getHead().y* Global.CELL_SIZE,
 Global.CELL_SIZE, Global.CELL_SIZE, 15,12);
 } 

 //控制蛇移动的线程内部类
 private class SnakeDriver implements Runnable {
 public void run() {
 while(life) {
 if(pause==false) {
  move();
  for(SnakeListener l : listeners)
  l.snakeMoved(Snake.this);
 } 

 try {
  Thread.sleep(sleepTime);
 } catch (InterruptedException e) {
  e.printStackTrace();
 }
 }
 }
 } 

 //启动线程的方法
 public void begin() {
 new Thread(new SnakeDriver()).start(); 

 } 

 //添加监听器
 public void addSnakeListener(SnakeListener l) {
 if(l != null) {
 listeners.add(l);
 }
 } 

 //加速
 public void speedUp() {
 if(sleepTime>50) {
 sleepTime-=20;
 }
 } 

 //减速
 public void speedDown() {
 if(sleepTime<700) {
 sleepTime+=20;
 }
 } 

}

Food类：

package com.huowolf.entities; 

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

import com.huowolf.util.Global; 

public class Food extends Point{ 

 private static final long serialVersionUID = 1L; 

 private Color foodColor; 

 public void setFoodColor(Color foodColor) {
 this.foodColor = foodColor;
 } 

 public Color getFoodColor() {
 return foodColor;
 } 

 public void newFood(Point p) {
 setLocation(p);
 } 

 public boolean isFoodEated(Snake snake) {
 return this.equals(snake.getHead());
 } 

 public void drawMe(Graphics g) {
 if(foodColor==null) {
 g.setColor(Color.RED);
 }else {
 g.setColor(foodColor);
 } 

 g.fill3DRect(x*Global.CELL_SIZE, y*Global.CELL_SIZE, Global.CELL_SIZE, Global.CELL_SIZE, true);
 }
}

Ground类

package com.huowolf.entities; 

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

import com.huowolf.util.Global; 

public class Ground {
 private boolean [][] rocks = new boolean[Global.WIDTH][Global.HEIGHT];
 private int mapType = 1; 

 public int getMapType() {
 return mapType;
 } 

 public void setMapType(int mapType) {
 this.mapType = mapType;
 } 

 //初始化地面(清空石头)
 public void clear() {
 for (int x = 0; x < Global.WIDTH; x++)
 for (int y = 0; y < Global.HEIGHT; y++)
 rocks[x][y] = false;
 } 

 /**
 * 产生石头
 */
 public void generateRocks1() {
 for (int x = 0; x < Global.WIDTH; x++)
 rocks[x][0] = rocks[x][Global.HEIGHT - 1] = true;
 for (int y = 0; y < Global.HEIGHT; y++)
 rocks[0][y] = rocks[Global.WIDTH - 1][y] = true;
 } 

 public void generateRocks2() { 

 for (int y = 0; y < 6; y++) {
 rocks[0][y] = true;
 rocks[Global.WIDTH - 1][y] = true;
 rocks[0][Global.HEIGHT - 1 - y] = true;
 rocks[Global.WIDTH - 1][Global.HEIGHT - 1 - y] = true;
 }
 for (int y = 6; y < Global.HEIGHT - 6; y++) {
 rocks[6][y] = true;
 rocks[Global.WIDTH - 7][y] = true;
 }
 } 

 public void generateRocks3() {
 for(int x=4;x<14;x++)
 rocks[x][5] = true;
 for(int j=5;j<15;j++)
 rocks[21][j] = true;
 for(int y=13;y<20;y++)
 rocks[14][y] = true;
 for(int x=2;x<10;x++)
 rocks[x][17] = true;
 for(int i=10;i<Global.WIDTH-3;i++)
 rocks[i][Global.HEIGHT-3] = true;
 } 

 //蛇是否吃到了石头
 public boolean isGroundEated(Snake snake) {
 for(int x=0; x<Global.WIDTH;x++) {
 for(int y=0; y<Global.HEIGHT;y++) {
 if(rocks[x][y] == true &&
  (x==snake.getHead().x &&y==snake.getHead().y)) {
  return true;
 }
 }
 }
 return false; 

 } 

 public Point getPoint() {
 Random random = new Random();
 int x=0,y=0;
 do {
 x = random.nextInt(Global.WIDTH);
 y = random.nextInt(Global.HEIGHT);
 } while (rocks[x][y]==true); 

 return new Point(x,y);
 } 

 //显示方法
 public void drawMe(Graphics g) {
 g.setColor(Color.DARK_GRAY); 

 for(int x=0; x<Global.WIDTH;x++) {
 for(int y=0; y<Global.HEIGHT;y++) {
 if(rocks[x][y] == true) {
  g.fill3DRect(x*Global.CELL_SIZE, y*Global.CELL_SIZE,
  Global.CELL_SIZE,Global.CELL_SIZE, true);
 }
 }
 }
 }
}

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