Java贪吃蛇程序

package Package1;

import java.awt.Graphics;

import java.awt.Point;

import PackageTool.Global;

public class Food extends Point{

public void newFood(Point p){

this.setLocation(p);

}

public boolean isSnakeEatFood(Snake snake){

System.out.println("Food's isSnakeEatFood");

return this.equals(snake.getHead());

}

public void drawMe(Graphics g){

System.out.println("Food's drawMe");

g.fill3DRect(x * Global.CELL_SIZE, y * Global.CELL_SIZE,

Global.CELL_SIZE, Global.CELL_SIZE, true);

}

}

package Package1;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Point;

import java.util.Random;

import PackageTool.Global;

public class Ground {

private int[][] rocks = new int[Global.WIDTH][Global.HEIGHT];

public Ground(){

for(int x = 0;x

rocks[x][0]=1;

rocks[x][Global.HEIGHT-1] = 1;

}

}

public boolean isSnakeEatRock(Snake snake){

System.out.println("Ground's isSnakeEatRoce");

for(int x =0 ;x

for(int y = 0;y

if((rocks[x][y]==1)&&(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]==1);

return new Point(x,y);

}

public void drawMe(Graphics g){

System.out.println("Ground's drawMe");

for(int x = 0;x

for(int y = 0;y

if(rocks[x][y] ==1){

g.setColor(Color.gray);

g.fill3DRect(x * Global.CELL_SIZE, y * Global.CELL_SIZE,

Global.CELL_SIZE, Global.CELL_SIZE, false);

}

}

}

}

}

package Package1;

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 PackageListener.SnakeListener;

import PackageTool.Global;

public class Snake {

private Set listeners = new HashSet();//监听器组的用法

private LinkedList body = new LinkedList();

public int oldDirection,newDirection;

public static final int UP = -1;

public static final int DOWN = 1;

public static final int LEFT = 2;

public static final int RIGHT = -2;

public static boolean gameover;

private Point oldTail;

public boolean life = true;

public Snake(){

init();

}

public void init(){

int x = Global.HEIGHT /2;

int y = Global.HEIGHT/2;

for(int i= 0;i<3;i++){

body.addFirst(new Point(x--,y));

}

oldDirection=newDirection = LEFT;//新旧方向复制

}

public void die(){

life = false;

gameover = true;