贪吃蛇网格java源代码 贪吃蛇网格java源代码大全

求一段JAVA编写的贪吃蛇小程序源代码

用MVC方式实现的贪吃蛇游戏,共有4个类。运行GreedSnake运行即可。主要是观察者模式的使用,我已经添加了很多注释了。

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1、

/*

* 程序名称:贪食蛇

* 原作者:BigF

* 修改者:algo

* 说明:我以前也用C写过这个程序,现在看到BigF用Java写的这个,发现虽然作者自称是Java的初学者,

* 但是明显编写程序的素养不错,程序结构写得很清晰,有些细微得地方也写得很简洁,一时兴起之

* 下,我认真解读了这个程序,发现数据和表现分开得很好,而我近日正在学习MVC设计模式,

* 因此尝试把程序得结构改了一下,用MVC模式来实现,对源程序得改动不多。

* 我同时也为程序增加了一些自己理解得注释,希望对大家阅读有帮助。

*/

package mvcTest;

/**

* @author WangYu

* @version 1.0

* Description:

* /pre

* Create on :Date :2005-6-13 Time:15:57:16

* LastModified:

* History:

*/

public class GreedSnake {

public static void main(String[] args) {

SnakeModel model = new SnakeModel(20,30);

SnakeControl control = new SnakeControl(model);

SnakeView view = new SnakeView(model,control);

//添加一个观察者,让view成为model的观察者

model.addObserver(view);

(new Thread(model)).start();

}

}

-------------------------------------------------------------

2、

package mvcTest;

//SnakeControl.java

import java.awt.event.KeyEvent;

import java.awt.event.KeyListener;

/**

* MVC中的Controler,负责接收用户的操作,并把用户操作通知Model

*/

public class SnakeControl implements KeyListener{

SnakeModel model;

public SnakeControl(SnakeModel model){

this.model = model;

}

public void keyPressed(KeyEvent e) {

int keyCode = e.getKeyCode();

if (model.running){ // 运行状态下,处理的按键

switch (keyCode) {

case KeyEvent.VK_UP:

model.changeDirection(SnakeModel.UP);

break;

case KeyEvent.VK_DOWN:

model.changeDirection(SnakeModel.DOWN);

break;

case KeyEvent.VK_LEFT:

model.changeDirection(SnakeModel.LEFT);

break;

case KeyEvent.VK_RIGHT:

model.changeDirection(SnakeModel.RIGHT);

break;

case KeyEvent.VK_ADD:

case KeyEvent.VK_PAGE_UP:

model.speedUp();

break;

case KeyEvent.VK_SUBTRACT:

case KeyEvent.VK_PAGE_DOWN:

model.speedDown();

break;

case KeyEvent.VK_SPACE:

case KeyEvent.VK_P:

model.changePauseState();

break;

default:

}

}

// 任何情况下处理的按键,按键导致重新启动游戏

if (keyCode == KeyEvent.VK_R ||

keyCode == KeyEvent.VK_S ||

keyCode == KeyEvent.VK_ENTER) {

model.reset();

}

}

public void keyReleased(KeyEvent e) {

}

public void keyTyped(KeyEvent e) {

}

}

-------------------------------------------------------------

3、

/*

*

*/

package mvcTest;

/**

* 游戏的Model类,负责所有游戏相关数据及运行

* @author WangYu

* @version 1.0

* Description:

* /pre

* Create on :Date :2005-6-13 Time:15:58:33

* LastModified:

* History:

*/

//SnakeModel.java

import javax.swing.*;

import java.util.Arrays;

import java.util.LinkedList;

import java.util.Observable;

import java.util.Random;

/**

* 游戏的Model类,负责所有游戏相关数据及运行

*/

class SnakeModel extends Observable implements Runnable {

boolean[][] matrix; // 指示位置上有没蛇体或食物

LinkedList nodeArray = new LinkedList(); // 蛇体

Node food;

int maxX;

int maxY;

int direction = 2; // 蛇运行的方向

boolean running = false; // 运行状态

int timeInterval = 200; // 时间间隔,毫秒

double speedChangeRate = 0.75; // 每次得速度变化率

boolean paused = false; // 暂停标志

int score = 0; // 得分

int countMove = 0; // 吃到食物前移动的次数

// UP and DOWN should be even

// RIGHT and LEFT should be odd

public static final int UP = 2;

public static final int DOWN = 4;

public static final int LEFT = 1;

public static final int RIGHT = 3;

public SnakeModel( int maxX, int maxY) {

this.maxX = maxX;

this.maxY = maxY;

reset();

}

public void reset(){

direction = SnakeModel.UP; // 蛇运行的方向

timeInterval = 200; // 时间间隔,毫秒

paused = false; // 暂停标志

score = 0; // 得分

countMove = 0; // 吃到食物前移动的次数

// initial matirx, 全部清0

matrix = new boolean[maxX][];

for (int i = 0; i maxX; ++i) {

matrix[i] = new boolean[maxY];

Arrays.fill(matrix[i], false);

}

// initial the snake

// 初始化蛇体,如果横向位置超过20个,长度为10,否则为横向位置的一半

int initArrayLength = maxX 20 ? 10 : maxX / 2;

nodeArray.clear();

for (int i = 0; i initArrayLength; ++i) {

int x = maxX / 2 + i;//maxX被初始化为20

int y = maxY / 2; //maxY被初始化为30

//nodeArray[x,y]: [10,15]-[11,15]-[12,15]~~[20,15]

//默认的运行方向向上,所以游戏一开始nodeArray就变为:

// [10,14]-[10,15]-[11,15]-[12,15]~~[19,15]

nodeArray.addLast(new Node(x, y));

matrix[x][y] = true;

}

// 创建食物

food = createFood();

matrix[food.x][food.y] = true;

}

public void changeDirection(int newDirection) {

// 改变的方向不能与原来方向同向或反向

if (direction % 2 != newDirection % 2) {

direction = newDirection;

}

}

/**

* 运行一次

* @return

*/

public boolean moveOn() {

Node n = (Node) nodeArray.getFirst();

int x = n.x;

int y = n.y;

// 根据方向增减坐标值

switch (direction) {

case UP:

y--;

break;

case DOWN:

y++;

break;

case LEFT:

x--;

break;

case RIGHT:

x++;

break;

}

// 如果新坐标落在有效范围内,则进行处理

if ((0 = x x maxX) (0 = y y maxY)) {

if (matrix[x][y]) { // 如果新坐标的点上有东西(蛇体或者食物)

if (x == food.x y == food.y) { // 吃到食物,成功

nodeArray.addFirst(food); // 从蛇头赠长

// 分数规则,与移动改变方向的次数和速度两个元素有关

int scoreGet = (10000 - 200 * countMove) / timeInterval;

score += scoreGet 0 ? scoreGet : 10;

countMove = 0;

food = createFood(); // 创建新的食物

matrix[food.x][food.y] = true; // 设置食物所在位置

return true;

} else // 吃到蛇体自身,失败

return false;

} else { // 如果新坐标的点上没有东西(蛇体),移动蛇体

nodeArray.addFirst(new Node(x, y));

matrix[x][y] = true;

n = (Node) nodeArray.removeLast();

matrix[n.x][n.y] = false;

countMove++;

return true;

}

}

return false; // 触到边线,失败

}

public void run() {

running = true;

while (running) {

try {

Thread.sleep(timeInterval);

} catch (Exception e) {

break;

}

if (!paused) {

if (moveOn()) {

setChanged(); // Model通知View数据已经更新

notifyObservers();

} else {

JOptionPane.showMessageDialog(null,

"you failed",

"Game Over",

JOptionPane.INFORMATION_MESSAGE);

break;

}

}

}

running = false;

}

private Node createFood() {

int x = 0;

int y = 0;

// 随机获取一个有效区域内的与蛇体和食物不重叠的位置

do {

Random r = new Random();

x = r.nextInt(maxX);

y = r.nextInt(maxY);

} while (matrix[x][y]);

return new Node(x, y);

}

public void speedUp() {

timeInterval *= speedChangeRate;

}

public void speedDown() {

timeInterval /= speedChangeRate;

}

public void changePauseState() {

paused = !paused;

}

public String toString() {

String result = "";

for (int i = 0; i nodeArray.size(); ++i) {

Node n = (Node) nodeArray.get(i);

result += "[" + n.x + "," + n.y + "]";

}

return result;

}

}

class Node {

int x;

int y;

Node(int x, int y) {

this.x = x;

this.y = y;

}

}

------------------------------------------------------------

4、

package mvcTest;

//SnakeView.java

import javax.swing.*;

import java.awt.*;

import java.util.Iterator;

import java.util.LinkedList;

import java.util.Observable;

import java.util.Observer;

/**

* MVC模式中得Viewer,只负责对数据的显示,而不用理会游戏的控制逻辑

*/

public class SnakeView implements Observer {

SnakeControl control = null;

SnakeModel model = null;

JFrame mainFrame;

Canvas paintCanvas;

JLabel labelScore;

public static final int canvasWidth = 200;

public static final int canvasHeight = 300;

public static final int nodeWidth = 10;

public static final int nodeHeight = 10;

public SnakeView(SnakeModel model, SnakeControl control) {

this.model = model;

this.control = control;

mainFrame = new JFrame("GreedSnake");

Container cp = mainFrame.getContentPane();

// 创建顶部的分数显示

labelScore = new JLabel("Score:");

cp.add(labelScore, BorderLayout.NORTH);

// 创建中间的游戏显示区域

paintCanvas = new Canvas();

paintCanvas.setSize(canvasWidth + 1, canvasHeight + 1);

paintCanvas.addKeyListener(control);

cp.add(paintCanvas, BorderLayout.CENTER);

// 创建底下的帮助栏

JPanel panelButtom = new JPanel();

panelButtom.setLayout(new BorderLayout());

JLabel labelHelp;

labelHelp = new JLabel("PageUp, PageDown for speed;", JLabel.CENTER);

panelButtom.add(labelHelp, BorderLayout.NORTH);

labelHelp = new JLabel("ENTER or R or S for start;", JLabel.CENTER);

panelButtom.add(labelHelp, BorderLayout.CENTER);

labelHelp = new JLabel("SPACE or P for pause", JLabel.CENTER);

panelButtom.add(labelHelp, BorderLayout.SOUTH);

cp.add(panelButtom, BorderLayout.SOUTH);

mainFrame.addKeyListener(control);

mainFrame.pack();

mainFrame.setResizable(false);

mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

mainFrame.setVisible(true);

}

void repaint() {

Graphics g = paintCanvas.getGraphics();

//draw background

g.setColor(Color.WHITE);

g.fillRect(0, 0, canvasWidth, canvasHeight);

// draw the snake

g.setColor(Color.BLACK);

LinkedList na = model.nodeArray;

Iterator it = na.iterator();

while (it.hasNext()) {

Node n = (Node) it.next();

drawNode(g, n);

}

// draw the food

g.setColor(Color.RED);

Node n = model.food;

drawNode(g, n);

updateScore();

}

private void drawNode(Graphics g, Node n) {

g.fillRect(n.x * nodeWidth,

n.y * nodeHeight,

nodeWidth - 1,

nodeHeight - 1);

}

public void updateScore() {

String s = "Score: " + model.score;

labelScore.setText(s);

}

public void update(Observable o, Object arg) {

repaint();

}

}

希望采纳

贪吃蛇 java代码

import java.awt.*;

import javax.swing.*;

import java.awt.event.*;

import java.util.*;

public class SnakeGame extends JFrame implements KeyListener{

private int stat=1,direction=0,bodylen=6,headx=7,heady=8,

tailx=1,taily=8,tail,foodx,foody,food;//初始化定义变量

public final int EAST=1,WEST=2,SOUTH=3,NORTH=4;//方向常量

int [][] fillblock=new int [20][20];//定义蛇身所占位置

public SnakeGame() {//构造函数

super("贪吃蛇");

setSize(510,510);

setVisible(true);//设定窗口属性

addKeyListener(this);//添加监听

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

for(int i=1;i=7;i++) fillblock[i][8]=EAST;//初始化蛇身属性

direction=EAST;//方向初始化的设置

FoodLocate(); //定位食物

while (stat==1){

fillblock[headx][heady]=direction;

switch(direction){

case 1:headx++;break;

case 2:headx--;break;

case 3:heady++;break;

case 4:heady--;break;

}//蛇头的前进

if(heady19||headx19||tailx19||taily19||heady0||headx0||tailx0||taily0||fillblock[headx][heady]!=0){

stat=0;

break;

} //判断游戏是否结束

try{

Thread.sleep(150); }

catch(InterruptedException e){}//延迟

fillblock[headx][heady]=direction;

if(headx==foodxheady==foody){//吃到食物

FoodLocate();

food=2;

try{

Thread.sleep(100); }

catch(InterruptedException e){}//延迟

}

if(food!=0)food--;

else{tail=fillblock[tailx][taily];

fillblock[tailx][taily]=0;//蛇尾的消除

switch(tail){

case 1:tailx++;break;

case 2:tailx--;break;

case 3:taily++;break;

case 4:taily--;break;

}//蛇尾的前进

}

repaint();

}

if(stat==0)

JOptionPane.showMessageDialog(null,"GAME OVER","Game Over",JOptionPane.INFORMATION_MESSAGE);

}

public void keyPressed(KeyEvent e) {//按键响应

int keyCode=e.getKeyCode();

if(stat==1) switch(keyCode){

case KeyEvent.VK_UP:if(direction!=SOUTH) direction=NORTH;break;

case KeyEvent.VK_DOWN:if(direction!=NORTH)direction=SOUTH;break;

case KeyEvent.VK_LEFT:if(direction!=EAST)direction=WEST;break;

case KeyEvent.VK_RIGHT:if (direction!=WEST)direction=EAST;break;

}

}

public void keyReleased(KeyEvent e){}//空函数

public void keyTyped(KeyEvent e){} //空函数

public void FoodLocate(){//定位食物坐标

do{

Random r=new Random();

foodx=r.nextInt(20);

foody=r.nextInt(20);

}while (fillblock[foodx][foody]!=0);

}

public void paint(Graphics g){//画图

super.paint(g);

g.setColor(Color.BLUE);

for(int i=0;i20;i++)

for(int j=0;j20;j++)

if (fillblock[i][j]!=0)

g.fillRect(25*i+5,25*j+5,24,24);

g.setColor(Color.RED);

g.fillRect(foodx*25+5,foody*25+5,24,24);

}

public static void main(String[] args) {//主程序

SnakeGame application=new SnakeGame();

}

}

高手帮忙解释一下JAVA 贪食蛇游戏中蛇的代码

public

class

Snake

implements

Data//蛇类实现了data接口

{

public

Snake()

{

array.add(new

Point(10,

10));//

array.add(new

Point(10,

11));//

array.add(new

Point(10,

12));//

array.add(new

Point(10,

13));//

array.add(new

Point(10,

14));//这五句话是构造一个蛇,这条蛇由五个坐标点连成

currentFlag

=UPFLAG

;//当前的运动方向设为向上

lifeFlag

=

true;//当前蛇的生命设为活着

}

public

void

move()//蛇的运动函数

{

tair

=

(Point)array.get(array.size()

-

1);//得到蛇的尾巴

int

len

=

array.size()

-

2;

for(int

i

=

len;

i

=

0;

i--)//这个for循环把蛇的每一个点都坐标偏移即运动了

{

Point

leftPoint

=

(Point)array.get(i);

Point

rightPoint

=

(Point)array.get(i

+

1);

rightPoint.x

=

leftPoint.x;

rightPoint.y

=

leftPoint.y;//每一个右边的点等于其左边的点,像蛇那样的一缩一张的运动

}

}

public

void

moveHeadLeft()//把蛇的头部转向左边

{

if(currentFlag

==

RIGHTFLAG

||

currentFlag

==

LEFTFLAG)//如果运动方向设为向左或向右则不执行

{

return;

}

move();

Point

point

=

(Point)(array.get(0));

//得到蛇头部

point.x

=

point.x

-

1;//蛇头部横坐标减一,纵坐标不变

point.y

=

point.y;

if(point.x

LEFT)//如果蛇头部不能再左,就不执行

{

lifeFlag

=

false;

}

currentFlag

=

LEFTFLAG;//将蛇运动方向改为左

}


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