java 贪吃蛇代码。移动方面的问题。

你不是有个temp的标识吗？可以用这个判断撒，记录上一状态。

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修改如下：

public void keyPressed(KeyEvent e) {

if (start){

switch (e.getKeyCode()){

case KeyEvent.VK_UP:

if(temp==2) break;

move(0,-1);

temp =1;

break;

case KeyEvent.VK_DOWN:

if(temp==1) break;

move(0,1);

temp =2;

break;

case KeyEvent.VK_LEFT:

if(temp==4) break;

move(-1,0);

temp =3;

break;

case KeyEvent.VK_RIGHT:

if(temp==3) break;

move(1,0);

temp =4;

break;

default:

break;

}

}

}

求"贪吃蛇"小游戏JAVA源代码一份

贪吃蛇

import java.awt.*;

import java.awt.event.*;

public class GreedSnake //主类

{

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

new MyWindow();

}

}

class MyPanel extends Panel implements KeyListener,Runnable//自定义面板类，继承了键盘和线程接口

{

Button snake[]; //定义蛇按钮

int shu=0; //蛇的节数

int food[]; //食物数组

boolean result=true; //判定结果是输 还是赢

Thread thread; //定义线程

static int weix,weiy; //食物位置

boolean t=true; //判定游戏是否结束

int fangxiang=0; //蛇移动方向

int x=0,y=0; //蛇头位置

MyPanel()

{

setLayout(null);

snake=new Button[20];

food=new int [20];

thread=new Thread(this);

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

{

food[j]=(int)(Math.random()*99);//定义20个随机食物

}

weix=(int)(food[0]*0.1)*60; //十位*60为横坐标

weiy=(int)(food[0]%10)*40; //个位*40为纵坐标

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

{

snake[i]=new Button();

}

add(snake[0]);

snake[0].setBackground(Color.black);

snake[0].addKeyListener(this); //为蛇头添加键盘监视器

snake[0].setBounds(0,0,10,10);

setBackground(Color.cyan);

}

public void run() //接收线程

{

while(t)

{

if(fangxiang==0)//向右

{

try

{

x+=10;

snake[0].setLocation(x, y);//设置蛇头位置

if(x==weixy==weiy) //吃到食物

{

shu++;

weix=(int)(food[shu]*0.1)*60;

weiy=(int)(food[shu]%10)*40;

repaint(); //重绘下一个食物

add(snake[shu]); //增加蛇节数和位置

snake[shu].setBounds(snake[shu-1].getBounds());

}

thread.sleep(100); //睡眠100ms

}

catch(Exception e){}

}

else if(fangxiang==1)//向左

{

try

{

x-=10;

snake[0].setLocation(x, y);

if(x==weixy==weiy)

{

shu++;

weix=(int)(food[shu]*0.1)*60;

weiy=(int)(food[shu]%10)*40;

repaint();

add(snake[shu]);

snake[shu].setBounds(snake[shu-1].getBounds());

}

thread.sleep(100);

}

catch(Exception e){}

}

else if(fangxiang==2)//向上

{

try

{

y-=10;

snake[0].setLocation(x, y);

if(x==weixy==weiy)

{

shu++;

weix=(int)(food[shu]*0.1)*60;

weiy=(int)(food[shu]%10)*40;

repaint();

add(snake[shu]);

snake[shu].setBounds(snake[shu-1].getBounds());

}

thread.sleep(100);

}

catch(Exception e){}

}

else if(fangxiang==3)//向下

{

try

{

y+=10;

snake[0].setLocation(x, y);

if(x==weixy==weiy)

{

shu++;

weix=(int)(food[shu]*0.1)*60;

weiy=(int)(food[shu]%10)*40;

repaint();

add(snake[shu]);

snake[shu].setBounds(snake[shu-1].getBounds());

}

thread.sleep(100);

}

catch(Exception e){}

}

int num1=shu;

while(num11)//判断是否咬自己的尾巴

{

if(snake[num1].getBounds().x==snake[0].getBounds().xsnake[num1].getBounds().y==snake[0].getBounds().y)

{

t=false;

result=false;

repaint();

}

num1--;

}

if(x0||x=this.getWidth()||y0||y=this.getHeight())//判断是否撞墙

{

t=false;

result=false;

repaint();

}

int num=shu;

while(num0) //设置蛇节位置

{

snake[num].setBounds(snake[num-1].getBounds());

num--;

}

if(shu==15) //如果蛇节数等于15则胜利

{

t=false;

result=true;

repaint();

}

}

}

public void keyPressed(KeyEvent e) //按下键盘方向键

{

if(e.getKeyCode()==KeyEvent.VK_RIGHT)//右键

{

if(fangxiang!=1)//如果先前方向不为左

fangxiang=0;

}

else if(e.getKeyCode()==KeyEvent.VK_LEFT)

{ if(fangxiang!=0)

fangxiang=1;

}

else if(e.getKeyCode()==KeyEvent.VK_UP)

{ if(fangxiang!=3)

fangxiang=2;

}

else if(e.getKeyCode()==KeyEvent.VK_DOWN)

{ if(fangxiang!=2)

fangxiang=3;

}

}

public void keyTyped(KeyEvent e)

{

}

public void keyReleased(KeyEvent e)

{

}

public void paint(Graphics g) //在面板上绘图

{

int x1=this.getWidth()-1;

int y1=this.getHeight()-1;

g.setColor(Color.red);

g.fillOval(weix, weiy, 10, 10);//食物

g.drawRect(0, 0, x1, y1); //墙

if(t==falseresult==false)

g.drawString("GAME OVER!", 250, 200);//输出游戏失败

else if(t==falseresult==true)

g.drawString("YOU WIN!", 250, 200);//输出游戏成功

}

}

class MyWindow extends Frame implements ActionListener//自定义窗口类

{

MyPanel my;

Button btn;

Panel panel;

MyWindow()

{

super("GreedSnake");

my=new MyPanel();

btn=new Button("begin");

panel=new Panel();

btn.addActionListener(this);

panel.add(new Label("begin后请按Tab键选定蛇"));

panel.add(btn);

panel.add(new Label("按上下左右键控制蛇行动"));

add(panel,BorderLayout.NORTH);

add(my,BorderLayout.CENTER);

setBounds(100,100,610,500);

setVisible(true);

validate();

addWindowListener(new WindowAdapter()

{

public void windowClosing(WindowEvent e)

{

System.exit(0);

}

});

}

public void actionPerformed(ActionEvent e)//按下begin按钮

{

if(e.getSource()==btn)

{

try

{

my.thread.start(); //开始线程

my.validate();

}

catch(Exception ee){}

}

}

}

java贪吃蛇代码注释求解

import java.awt.Color;

import java.awt.Graphics;

import java.awt.Graphics2D;

import java.awt.Rectangle;

import java.awt.event.KeyAdapter;

import java.awt.event.KeyEvent;

import java.awt.image.BufferedImage;

import java.util.ArrayList;

import java.util.List;

import javax.swing.JFrame;

public class InterFace extends JFrame {

/**

* WIDTH:宽

* HEIGHT:高

* SLEEPTIME:可以看作蛇运动的速度

* L = 1,R = 2, U = 3, D = 4 左右上下代码

*/

public static final int WIDTH = 800, HEIGHT = 600, SLEEPTIME = 200, L = 1,R = 2, U = 3, D = 4;

BufferedImage offersetImage= new BufferedImage(WIDTH, HEIGHT,BufferedImage.TYPE_3BYTE_BGR);;

Rectangle rect = new Rectangle(20, 40, 15 * 50, 15 * 35);

Snake snake;

Node node;

public InterFace() {

//创建"蛇"对象

snake = new Snake(this);

//创建"食物"对象

createNode();

this.setBounds(100, 100, WIDTH, HEIGHT);

//添加键盘监听器

this.addKeyListener(new KeyAdapter() {

public void keyPressed(KeyEvent arg0) {

System.out.println(arg0.getKeyCode());

switch (arg0.getKeyCode()) {

//映射上下左右4个键位

case KeyEvent.VK_LEFT:

snake.dir = L;

break;

case KeyEvent.VK_RIGHT:

snake.dir = R;

break;

case KeyEvent.VK_UP:

snake.dir = U;

break;

case KeyEvent.VK_DOWN:

snake.dir = D;

}

}

});

this.setTitle("贪吃蛇 0.1 By ： Easy");

this.setDefaultCloseOperation(EXIT_ON_CLOSE);

this.setVisible(true);

//启动线程,开始执行

new Thread(new ThreadUpadte()).start();

}

public void paint(Graphics g) {

Graphics2D g2d = (Graphics2D) offersetImage.getGraphics();

g2d.setColor(Color.white);

g2d.fillRect(0, 0, WIDTH, HEIGHT);

g2d.setColor(Color.black);

g2d.drawRect(rect.x, rect.y, rect.width, rect.height);

//如果蛇碰撞(吃)到食物，则创建新食物

if (snake.hit(node)) {

createNode();

}

snake.draw(g2d);

node.draw(g2d);

g.drawImage(offersetImage, 0, 0, null);

}

class ThreadUpadte implements Runnable {

public void run() {

//无限重绘画面

while (true) {

try {

Thread.sleep(SLEEPTIME);

repaint(); //

} catch (InterruptedException e) {

e.printStackTrace();

}

}

}

}

/**

* 创建食物

*/

public void createNode() {

//随机食物的出现位置

int x = (int) (Math.random() * 650) + 50,y = (int) (Math.random() * 500) + 50;

Color color = Color.blue;

node = new Node(x, y, color);

}

public static void main(String args[]) {

new InterFace();

}

}

/**

* 节点类(包括食物和蛇的身躯组成节点)

*/

class Node {

int x, y, width = 15, height = 15;

Color color;

public Node(int x, int y, Color color) {

this(x, y);

this.color = color;

}

public Node(int x, int y) {

this.x = x;

this.y = y;

this.color = color.black;

}

public void draw(Graphics2D g2d) {

g2d.setColor(color);

g2d.drawRect(x, y, width, height);

}

public Rectangle getRect() {

return new Rectangle(x, y, width, height);

}

}

/**

* 蛇

*/

class Snake {

public ListNode nodes = new ArrayListNode();

InterFace interFace;

int dir=InterFace.R;

public Snake(InterFace interFace) {

this.interFace = interFace;

nodes.add(new Node(20 + 150, 40 + 150));

addNode();

}

/**

* 是否碰撞到食物

* @return true 是 false 否

*/

public boolean hit(Node node) {

//遍历整个蛇体是否与食物碰撞

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

if (nodes.get(i).getRect().intersects(node.getRect())) {

addNode();

return true;

}

}

return false;

}

public void draw(Graphics2D g2d) {

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

nodes.get(i).draw(g2d);

}

move();

}

public void move() {

nodes.remove((nodes.size() - 1));

addNode();

}

public synchronized void addNode() {

Node nodeTempNode = nodes.get(0);

//如果方向

switch (dir) {

case InterFace.L:

//判断是否会撞墙

if (nodeTempNode.x = 20) {

nodeTempNode = new Node(20 + 15 * 50, nodeTempNode.y);

}

nodes.add(0, new Node(nodeTempNode.x - nodeTempNode.width,

nodeTempNode.y));

break;

case InterFace.R:

//判断是否会撞墙

if (nodeTempNode.x = 20 + 15 * 50 - nodeTempNode.width) {

nodeTempNode = new Node(20 - nodeTempNode.width, nodeTempNode.y);

}

nodes.add(0, new Node(nodeTempNode.x + nodeTempNode.width,

nodeTempNode.y));

break;

case InterFace.U:

//判断是否会撞墙

if (nodeTempNode.y = 40) {

nodeTempNode = new Node(nodeTempNode.x, 40 + 15 * 35);

}

nodes.add(0, new Node(nodeTempNode.x, nodeTempNode.y - nodeTempNode.height));

break;

case InterFace.D:

//判断是否会撞墙

if (nodeTempNode.y = 40 + 15 * 35 - nodeTempNode.height) {

nodeTempNode = new Node(nodeTempNode.x,40 - nodeTempNode.height);

}

nodes.add(0, new Node(nodeTempNode.x, nodeTempNode.y + nodeTempNode.height));

break;

}

}

}

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();

}

}

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