java贪吃蛇登录代码

㈠ 求java贪吃蛇完整代码

自己写着玩的,很简单,你试一试哦...
主要用了javax.swing.Timer这个类:

import java.awt.*;
import javax.swing.*;

@SuppressWarnings("serial")
public class MainClass extends JFrame {
ControlSnake control;

Toolkit kit;

Dimension dimen;

public static void main(String[] args) {
new MainClass("my snake");
}

public MainClass(String s) {
super(s);
control = new ControlSnake();
control.setFocusable(true);
kit = Toolkit.getDefaultToolkit();
dimen = kit.getScreenSize();

add(control);
setLayout(new BorderLayout());
setLocation(dimen.width / 3, dimen.height / 3);// dimen.width/3,dimen.height/3
setSize(FWIDTH, FHEIGHT);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setResizable(false);
setVisible(true);
}

public static final int FWIDTH = 315;

public static final int FHEIGHT = 380;
}

import java.util.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.Timer;
import java.util.Random;

@SuppressWarnings("serial")
public class ControlSnake extends JPanel implements ActionListener {
Random rand;

ArrayList<Point> list, listBody;

String str, str1;

static boolean key;

int x, y, dx, dy, fx, fy, flag;

int snakeBody;

int speed;

public ControlSnake() {
snakeBody = 1;

str = "上下左右方向键控制 P键暂停...";
str1 = "现在的长度为:" + snakeBody;
key = true;
flag = 1;

speed = 700;
rand = new Random();
list = new ArrayList<Point>();
listBody = new ArrayList<Point>();

x = 5;
y = 5;
list.add(new Point(x, y));
listBody.add(list.get(0));

dx = 10;
dy = 0;

fx = rand.nextInt(30) * 10 + 5;// 2
fy = rand.nextInt(30) * 10 + 5;// 2

setBackground(Color.WHITE);
setSize(new Dimension(318, 380));

final Timer time = new Timer(speed, this);
time.start();

addKeyListener(new KeyAdapter() {
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == 37) {
dx = -10;
dy = 0;
} else if (e.getKeyCode() == 38) {
dx = 0;
dy = -10;
} else if (e.getKeyCode() == 39) {
dx = 10;
dy = 0;
} else if (e.getKeyCode() == 40) {
dx = 0;
dy = 10;
} else if (e.getKeyCode() == 80) {
if (flag % 2 == 1) {
time.stop();
}
if (flag % 2 == 0) {
time.start();
}
flag++;
}
}
});

}

public void paint(Graphics g) {
g.setColor(Color.WHITE);
g.fillRect(0, 0, 400, 400);
g.setColor(Color.DARK_GRAY);
g.drawLine(3, 3, 305, 3);
g.drawLine(3, 3, 3, 305);
g.drawLine(305, 3, 305, 305);
g.drawLine(3, 305, 305, 305);
g.setColor(Color.PINK);

for (int i = 0; i < listBody.size(); i++) {
g.fillRect(listBody.get(i).x, listBody.get(i).y, 9, 9);
}
g.fillRect(x, y, 9, 9);
g.setColor(Color.ORANGE);
g.fillRect(fx, fy, 9, 9);

g.setColor(Color.DARK_GRAY);
str1 = "现在的长度为:" + snakeBody;
g.drawString(str, 10, 320);
g.drawString(str1, 10, 335);
}

public void actionPerformed(ActionEvent e) {
x += dx;
y += dy;
if (makeOut() == false) {
JOptionPane.showMessageDialog(null, "重新开始......");

speed = 700;

snakeBody = 1;

x = 5;
y = 5;

list.clear();
list.add(new Point(x, y));
listBody.clear();
listBody.add(list.get(0));

dx = 10;
dy = 0;

}
addPoint(x, y);
if (x == fx && y == fy) {
speed = (int) (speed * 0.8);//速度增加参数
if (speed < 200) {
speed = 100;
}
fx = rand.nextInt(30) * 10 + 5;// 2
fy = rand.nextInt(30) * 10 + 5;// 2
snakeBody++;// 2
} // 2
repaint();
}

public void addPoint(int xx, int yy) {
// 动态的记录最新发生的50步以内的移动过的坐标
// 并画出最新的snakeBody
if (list.size() < 100) {//蛇身长度最长为100
list.add(new Point(xx, yy));
} else {
list.remove(0);
list.add(new Point(xx, yy));
}
if (snakeBody == 1) {
listBody.remove(0);
listBody.add(0, list.get(list.size() - 1));
} else {
listBody.clear();
if (list.size() < snakeBody) {
for (int i = list.size() - 1; i > 0; i--) {
listBody.add(list.get(i));
}
} else {
for (int i = list.size() - 1; listBody.size() < snakeBody; i--) {
listBody.add(list.get(i));
}
}
}
}

public boolean makeOut() {
if ((x < 3 || y < 3) || (x > 305 || y > 305)) {
return false;
}
for (int i = 0; i < listBody.size() - 1; i++) {
for (int j = i + 1; j < listBody.size(); j++) {
if (listBody.get(i).equals(listBody.get(j))) {
return false;
}
}
}
return true;
}
}

㈡ 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;//方向常慎明量
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;
}/搜孝此/蛇头的前进
if(heady>19||headx>19||tailx>19||taily>19||heady<0||headx<0||tailx<0||taily<0||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==foodx&&heady==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;/世迅/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;i<20;i++)
for(int j=0;j<20;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();
}
}

㈢ 以下是贪吃蛇java程序一部分，我需要下面程序代码的详细注解～～～～我会重赏的，以高分告劳～

/**
* 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
*/
class SnakeView implements Observer {
SnakeControl control = null; //实例话一个SnakeControl对象是control ..SnakeControl在jdk中不存在可能是第3方的或者是自己编写的一个类吧
SnakeModel model = null;//如上

JFrame mainFrame; //创建一个面板类jframe
Canvas paintCanvas;
/**
*Canvas 组件表示屏幕上一个空白矩形区域，应用程序可以在该区域内绘图，或者可以从该区域捕获用户的输入事件。
*应用程序必须为 Canvas 类创建子类，以获得有用的功能（如创建自定义组件）。必须重写 paint 方法，以便在 canvas 上执行自定义图形。
*/
JLabel labelScore;//....不说了吧..

public static final int canvasWidth = 200; //常量宽度200
public static final int canvasHeight = 300;//常量高300

public static final int nodeWidth = 10;//常量宽度10
public static final int nodeHeight = 10;//常量高度10

public SnakeView(SnakeModel model, SnakeControl control) {
this.model = model;
this.control = control;

mainFrame = new JFrame("GreedSnake");//创建jframe 标题是GreedSnake

Container cp = mainFrame.getContentPane(); //得到jfram的容器

labelScore = new JLabel("Score:"); //创建jlabel 标签内容是"Score:"
cp.add(labelScore, BorderLayout.NORTH);/将jlabel添加到jfram的容器中去

paintCanvas = new Canvas(); //创建新绘图区
paintCanvas.setSize(canvasWidth + 1, canvasHeight + 1); //设置绘图区大小
paintCanvas.addKeyListener(control);//添加键盘监听器control
cp.add(paintCanvas, BorderLayout.CENTER);//将绘图区添加到jfram容器中去.布局是BorderLayout的CENTER位置.就是东西南北中的中间

JPanel panelButtom = new JPanel();//创建一个panel
panelButtom.setLayout(new BorderLayout());//设置布局是BorderLayout
JLabel labelHelp;//标签的创建和添加开始了.......new了3遍就是实例化了3个都加到了panle的中间 ,标签的内容都是""中间的
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);//把这个panel添加到jframe的容器里面去

mainFrame.addKeyListener(control);//为jframe添加键盘监听器
mainFrame.pack();//调整此窗口的大小，以适合其子组件的首选大小和布局。如果该窗口和/或其所有者仍不可显示，则两者在计算首选大小之前变得可显示。在计算首选大小之后，将会验证该 Window。
mainFrame.setResizable(false);//设置此 frame 是否可由用户调整大小。false就是不能
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//点击又上角的就是关闭
mainFrame.setVisible(true);//设置jfram为能看到
}

void repaint() {
Graphics g = paintCanvas.getGraphics();//Graphics详细看jdk文档..我就知道是一个所有图形上下文的抽象基类..这里应该是那个画图面板

g.setColor(Color.WHITE);//设置这个颜色
g.fillRect(0, 0, canvasWidth, canvasHeight);//画一个矩形在x,y处画一个宽是200,高是300的矩形,

g.setColor(Color.BLACK);//颜色是黑的
LinkedList na = model.nodeArray;//LinkedList 类 List 接口的链接列表实现就是一个集合对象了,因为不知道SnakeModel具体是一个什么类这里就当作这个类能得到一个集合
Iterator it = na.iterator();//得到迭代器去迭代这个集合
while (it.hasNext()) {//开始用while迭代
Node n = (Node) it.next();//得到一个集合中元素.是一个Node....这里的Node不知道是什么对象..有待于研究
drawNode(g, n);//调用另外方法
}

g.setColor(Color.RED);//设置颜色是红的
Node n = model.food;//得到一个新node..看来Node这里应该是一个坐标..这里的坐标就是蛇吃的那个东西
drawNode(g, n);//画这个东西..

updateScore();//调用..
}

private void drawNode(Graphics g, Node n) {//这是一个画方的方法..动态改变方型的位置
g.fillRect(n.x * nodeWidth,
n.y * nodeHeight,
nodeWidth - 1,
nodeHeight - 1);
}

public void updateScore() {//这是更新标签的一个方法
String s = "Score: " + model.score;
labelScore.setText(s);
}

public void update(Observable o, Object arg) {//这个就是Observer监听类必须实现的方法..这里是去调用repaint()方法..repaint方法就是不断去改变画图版里面的内容的
repaint();
}
}

㈣ 求贪吃蛇java程序代码(要能运行的,有完整注释的)

三个文件，楼主看好：
运行可以，但是并不能鼓吹是一个具有好的风格的代码，。

//文件一
package greedysnake_cx;

public class Node {
int x=0;
int y=0;

int nodewidth;
int nodeheight;

Node(int x,int y){
this.x=x;
this.y=y;
}
}

//文件二
package greedysnake_cx;

/**
* 实现一个greedysnake的模型，具有功能：
* 1）移动，moveOn（）－－－－从director参数中获取方向信息，如果方向定义的下一个点的逻辑值是true，检查是不是food，是则将food添加到
* 列表的头部，snake继续移动，不是则停止移动（撞到蛇尾巴了）
* 2）加速，speedUp()－－－－将现成的停滞时间间隔interval按照一定的比率 speedRate进行扩大
* 3）减速，speedDown()－－－－....
*
* 该类实现Runnable接口，
* */

//定义snake的模型
import java.util.*;

import javax.swing.*;

public class SnakeModel implements Runnable {

private GreedSnake gs;

//给每一个矩阵点确立一个boolean值
boolean[][] matrix;
private int maxX;
private int maxY;
//设置一个节点的列表；
LinkedList nodeArray = new LinkedList();

Node food=null;
int direction=UP;

int score=0;

//定义方向
public final static int LEFT=1;
public final static int UP=2;
public final static int RIGHT=3;
public final static int DOWN=4;

private int interval=200; //停顿时间的间隔

boolean pause=false; //定义暂停

private double speedRate=0.5; //定义速度的变更幅度
//constructor
public SnakeModel(GreedSnake gs,int maxx,int maxy){
this.gs=gs;
this.maxX=maxx;
this.maxY=maxy;
//this.matrix=null;
////////////////////////////////////////////////////////////////////
//init matrix[][];
matrix=new boolean[maxX][]; //***********************不初始化是不行滴
for(int i=0;i<maxX;i++){
matrix[i]=new boolean[maxY];//将矩阵的每一行定义成列的集合
Arrays.fill(matrix[i], false);///使用java.util.Arrays的static方法fill，将matrix[]数组里面的元素全部定义成false
//至此，矩阵里面所有的点的boolean值都是flase
//for(int j=0;j<maxY;j++){
//matrix[i][j]=false;
//}
}
////////////////////////////////////////////////////////////////////
//init nodeArray
int initlength=10;
for(int i=0;i<initlength;i++){
//确保snake出现在屏幕的中央 assure that the greedy snake appears in the center of the model
//snake的长度由maxX来确定
int x=maxX/2+i;
int y=maxY/2;
nodeArray.addFirst(new Node(x,y));
matrix[x][y]=true;
}
//////////////////////////////////////////////////////////////////////
//创建食物
food=createFood();
System.out.println("some test!");
matrix[food.x][food.y]=true;
}//end constructor

//snake动起
public boolean moveOn(){
Node head=(Node)nodeArray.getFirst();
int x=head.x;
int y=head.y;

switch(direction){
case LEFT:
x--;break;
case UP:
y--;break;
case RIGHT:
x++;break;
case DOWN:
y++;break;
default:
}
if((x >= 0 && x < maxX) && (y >= 0 && y < maxY)){
if(matrix[x][y]){//当蛇头转至一个bool值为true的点时
if(x==food.x&&y==food.y){//该点是食物
nodeArray.addFirst(food);
//吃掉补上
food=createFood();
matrix[food.x][food.y]=true;
score+=10;
return true;
}
else //该点不是食物，（蛇尾巴）
return false;
}
else{
nodeArray.addFirst(new Node(x,y));
matrix[x][y]=true;
Node nn=(Node)nodeArray.removeLast();//移除并且返回列表中的最后一个元素
matrix[nn.x][nn.y]=false;
return true;
}
}
return false;
}//end moveOn
public void run() {
boolean running=true;

while(running){
try{
Thread.sleep(interval);
}
catch(InterruptedException e){
e.printStackTrace();
}
if(!pause){
if(moveOn()){
gs.repaint();
}
else{
JOptionPane.showMessageDialog(null, "sorry myboy,GAME OVER!", "message", JOptionPane.INFORMATION_MESSAGE);
running=false;
}
}
}

/*boolean running=true;
while(running){
try{
Thread.sleep(interval);
}
catch (InterruptedException e){
e.printStackTrace();
}
if(!pause){
if(moveOn()){
gs.repaint();
}
else{
JOptionPane.showMessageDialog(null,"i am sorry ,you failed!","message",JOptionPane.INFORMATION_MESSAGE);
break;
}
}
}//end while
running=false;//当且仅当失败退出的时候；
*/
}
//获取当前游戏得分
public int getScore(){
return this.score;
}

//加速
public void speedUp(){
interval*=speedRate;
}
//减速
public void speedDown(){
interval/=speedRate;
}
//设置暂停
public void chagePause(){
pause=!pause;
}
//设置方向
public void chageDirection(int newdirection){
if(direction % 2 != newdirection % 2){
direction=newdirection;
}
}
//生成食物
private Node createFood() {
/*
* 创建一个随机数的生成器，这个是java.util.Random类
* 与java.lang.Math类中的random()方法有不一样的地方，彼方法返回一个0－1之间的随机数
* */
Random random=new Random();
int foodx=random.nextInt(maxX);
int foody=random.nextInt(maxY);
Node food=new Node(foodx,foody);
return food;
}

}

//文件三
package greedysnake_cx;

/**
* 在repaint()方法中，绘画上下文对象是从canvas对象使用getContentPane()获取的!!
* */
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;

public class GreedSnake implements KeyListener{

Canvas canvas;
private JLabel jlabel;
private JPanel jpanel;
private JFrame jframe;

SnakeModel snakemodel;

private final static int canvaswidth=400;
private final static int canvasheight=300;
private final static int nodewidth=10;
private final static int nodeheight=10;
//construction
GreedSnake(){

jframe=new JFrame("The Greed Sanke!");
jframe.setLayout(new BorderLayout());
Container cp=jframe.getContentPane();
//在jframe面板中添加各种组件
jlabel=new JLabel("welcome");
jlabel.setText("Welcome my friend! Enjoy your self!");

cp.add(jlabel,BorderLayout.NORTH);

canvas=new Canvas();
canvas.setSize(canvaswidth,canvasheight);
canvas.addKeyListener(this); //给空白面板添加键盘时间监听器！
cp.add(canvas,BorderLayout.CENTER);

jpanel=new JPanel();
jpanel.setLayout(new BorderLayout());
JLabel label=new JLabel("Pass enter or 'r' or 's' to start",JLabel.CENTER);
jpanel.add(label,BorderLayout.NORTH);
JLabel label2=new JLabel("Pass space to pause this game!",JLabel.CENTER);
jpanel.add(label2,BorderLayout.CENTER);
JLabel label3=new JLabel("Pass pageUp or pageDown to up or down the speed of the snake!",JLabel.CENTER);
jpanel.add(label3,BorderLayout.SOUTH);
cp.add(jpanel,BorderLayout.SOUTH);

//给顶层容器设置时间监听、可视化、关闭按钮的设定
jframe.addKeyListener(this);
jframe.pack();
jframe.setVisible(true);
jframe.setResizable(false);
jframe.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

begin();

}//end construction
public void begin(){
//开启一个SnakeModel的进程,并且开始改进程
snakemodel=new SnakeModel(this,canvaswidth/nodewidth,canvasheight/nodeheight);
(new Thread(snakemodel)).start();
}

void repaint(){
int score=snakemodel.getScore();
jlabel.setText("您的得分是："+score);
Graphics g=canvas.getGraphics();///pay attention!
g.setColor(Color.white);
g.fillRect(0, 0, canvaswidth, canvasheight);

g.setColor(Color.blue);
LinkedList list=snakemodel.nodeArray;
for(int i=0;i<list.size();i++){
Node nn=(Node)list.get(i);
paintingNode(g,nn);
}
//绘制food
g.setColor(Color.green);
Node foodnode=new Node(snakemodel.food.x,snakemodel.food.y);
paintingNode(g,foodnode);
}

public void paintingNode(Graphics gg,Node n){
/*
* 使用Graphics 的fillRect方法，填充一个矩形，
* 矩形的起点需要乘以一个NODE的长宽，以避免重叠
* */
gg.fillRect(n.x*nodewidth, n.y*nodeheight,nodewidth-1,nodeheight-1);
}
public void keyPressed(KeyEvent e) {//按下某一个键时，调用此方法
int keycode=e.getKeyCode();
/* if(keycode==KeyEvent.VK_ENTER||keycode==KeyEvent.VK_R){
begin();
}*/

switch(keycode){
case KeyEvent.VK_LEFT:
snakemodel.chageDirection(SnakeModel.LEFT);
break;
case KeyEvent.VK_UP:
snakemodel.chageDirection(SnakeModel.UP);
break;
case KeyEvent.VK_RIGHT:
snakemodel.chageDirection(SnakeModel.RIGHT);
break;
case KeyEvent.VK_DOWN:
snakemodel.chageDirection(SnakeModel.DOWN);
break;
case KeyEvent.VK_PAGE_DOWN:
snakemodel.speedDown();
break;
case KeyEvent.VK_PAGE_UP:
snakemodel.speedUp();
break;
case KeyEvent.VK_ENTER:
case KeyEvent.VK_R:
begin();
break;
case KeyEvent.VK_SPACE:
case KeyEvent.VK_P:
snakemodel.chagePause();
default:
}//end switch
}//end keyPressed

public void keyReleased(KeyEvent e) {//释放某一个键时，调用此方法
}

public void keyTyped(KeyEvent e) {//键入某一个键时，调用此方法！
}
//main
public static void main(String[] args){
GreedSnake gs=new GreedSnake();
}
}

㈤ 求java贪吃蛇的编程，并有注释

J2ME贪吃蛇源代码——200行左右，包含详细注释 package snake;import javax.microedition.midlet.*;
import javax.microedition.lci.*;public class SnakeMIDlet extends MIDlet {
SnakeCanvas displayable = new SnakeCanvas();
public SnakeMIDlet() {
Display.getDisplay(this).setCurrent(displayable);
}public void startApp() {}public void pauseApp() {}public void destroyApp(boolean unconditional) {}}//文件名：SnakeCanvas.javapackage snake;import java.util.*;
import javax.microedition.lci.*;/**
* 贪吃蛇游戏
*/
public class SnakeCanvas extends Canvas implements Runnable{
/**存储贪吃蛇节点坐标,其中第二维下标为0的代表x坐标，第二维下标是1的代表y坐标*/
int[][] snake = new int[200][2];
/**已经使用的节点数量*/
int snakeNum;
/**贪吃蛇运动方向,0代表向上，1代表向下,2代表向左,3代表向右*/
int direction;
/*移动方向*/
/**向上*/
private final int DIRECTION_UP = 0;
/**向下*/
private final int DIRECTION_DOWN = 1;
/**向左*/
private final int DIRECTION_LEFT = 2;
/**向右*/
private final int DIRECTION_RIGHT = 3;/**游戏区域宽度*/
int width;
/**游戏区域高度*/
int height;/**蛇身单元宽度*/
private final byte SNAKEWIDTH = 4;/**是否处于暂停状态,true代表暂停*/
boolean isPaused = false;
/**是否处于运行状态,true代表运行*/
boolean isRun = true;/**时间间隔*/
private final int SLEEP_TIME = 300;

/**食物的X坐标*/
int foodX;
/**食物的Y坐标*/
int foodY;
/**食物的闪烁控制*/
boolean b = true;

/**Random对象*/
Random random = new Random();

public SnakeCanvas() {
//初始化
init();
width = this.getWidth();
height = this.getHeight();
//启动线程
new Thread(this).start();
}/**
* 初始化开始数据
*/
private void init(){
//初始化节点数量
snakeNum = 7;
//初始化节点数据
for(int i = 0;i < snakeNum;i++){
snake[i][0] = 100 - SNAKEWIDTH * i;
snake[i][1] = 40;
}
//初始化移动方向
direction = DIRECTION_RIGHT;
//初始化食物坐标
foodX = 100;
foodY = 100;
}protected void paint(Graphics g) {
//清屏
g.setColor(0xffffff);
g.fillRect(0,0,width,height);
g.setColor(0);//绘制蛇身
for(int i = 0;i < snakeNum;i++){
g.fillRect(snake[i][0],snake[i][1],SNAKEWIDTH,SNAKEWIDTH);
}
//绘制食物
if(b){
g.fillRect(foodX,foodY,SNAKEWIDTH,SNAKEWIDTH);
}
}private void move(int direction){
//蛇身移动
for(int i = snakeNum - 1;i > 0;i--){
snake[i][0] = snake[i - 1][0];
snake[i][1] = snake[i - 1][1];
}//第一个单元格移动
switch(direction){
case DIRECTION_UP:
snake[0][1] = snake[0][1] - SNAKEWIDTH;
break;
case DIRECTION_DOWN:
snake[0][1] = snake[0][1] + SNAKEWIDTH;
break;
case DIRECTION_LEFT:
snake[0][0] = snake[0][0] - SNAKEWIDTH;
break;
case DIRECTION_RIGHT:
snake[0][0] = snake[0][0] + SNAKEWIDTH;
break;
}
}
/**
* 吃掉食物，自身增长
*/
private void eatFood(){
//判别蛇头是否和食物重叠
if(snake[0][0] == foodX && snake[0][1] == foodY){
snakeNum++;
generateFood();
}
}
/**
* 产生食物
* 说明：食物的坐标必须位于屏幕内，且不能和蛇身重合
*/
private void generateFood(){
while(true){
foodX = Math.abs(random.nextInt() % (width - SNAKEWIDTH + 1))
/ SNAKEWIDTH * SNAKEWIDTH;
foodY = Math.abs(random.nextInt() % (height - SNAKEWIDTH + 1))
/ SNAKEWIDTH * SNAKEWIDTH;
boolean b = true;
for(int i = 0;i < snakeNum;i++){
if(foodX == snake[i][0] && snake[i][1] == foodY){
b = false;
break;
}
}
if(b){
break;
}
}
}

/**
* 判断游戏是否结束
* 结束条件：
* 1、蛇头超出边界
* 2、蛇头碰到自身
*/
private boolean isGameOver(){
//边界判别
if(snake[0][0] < 0 || snake[0][0] > (width - SNAKEWIDTH) ||
snake[0][1] < 0 || snake[0][1] > (height - SNAKEWIDTH)){
return true;
}
//碰到自身
for(int i = 4;i < snakeNum;i++){
if(snake[0][0] == snake[i][0]
&& snake[0][1] == snake[i][1]){
return true;
}
}

return false;
}/**
* 事件处理
*/
public void keyPressed(int keyCode){
int action = this.getGameAction(keyCode);
//改变方向
switch(action){
case UP:
if(direction != DIRECTION_DOWN){
direction = DIRECTION_UP;
}
break;
case DOWN:
if(direction != DIRECTION_UP){
direction = DIRECTION_DOWN;
}
break;
case LEFT:
if(direction != DIRECTION_RIGHT){
direction = DIRECTION_LEFT;
}
break;
case RIGHT:
if(direction != DIRECTION_LEFT){
direction = DIRECTION_RIGHT;
}
break;
case FIRE:
//暂停和继续
isPaused = !isPaused;
break;
}
}/**
* 线程方法
* 使用精确延时
*/
public void run(){
try{
while (isRun) {
//开始时间
long start = System.currentTimeMillis();

if(!isPaused){
//吃食物
eatFood();
//移动
move(direction);

//结束游戏
if(isGameOver()){
break;
}

//控制闪烁
b = !b;
}
//重新绘制
repaint();

long end = System.currentTimeMillis();

//延时
if(end - start < SLEEP_TIME){
Thread.sleep(SLEEP_TIME - (end - start));
}
}
}catch(Exception e){}
}
}

㈥ 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。
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

㈦ 求一份java 贪吃蛇的代码

package games;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
import static java.lang.Math.*;//静态导入
/*
* 此类是贪吃蛇的简单实现方法
* 自己可以加入在开始时的设置，比如
* 选关，初始的蛇的长度等等
*/

public class Snake extends JPanel {
private static final long serialVersionUID = 1L;
private Direction dir;// 要走的方向
private int blockWidth = 10;// 块大小
private int blockSpace = 2;// 块之间的间隔
private long sleepTime;// 重画的进间间隔
private MySnake my;
private int total;// 代表蛇的长度
private Rectangle food;// 代表蛇的食物
private volatile boolean go;
private int round;// 表示第几关

public Snake(JFrame jf) {
initOther();
// 为顶级窗口类JFrame添加事件处理函数
jf.addKeyListener(new KeyAdapter() {
public void keyReleased(KeyEvent ke) {
int code = ke.getKeyCode();
if (code == KeyEvent.VK_RIGHT) {
if (dir != Direction.WEST)
dir = Direction.EAST;
}

else if (code == KeyEvent.VK_LEFT) {
if (dir != Direction.EAST)
dir = Direction.WEST;
}

else if (code == KeyEvent.VK_UP) {
if (dir != Direction.SOUTH)
dir = Direction.NORTH;
}

else if (code == KeyEvent.VK_DOWN) {
if (dir != Direction.NORTH)
dir = Direction.SOUTH;
} else if (code == KeyEvent.VK_ENTER) {
if (!go)
initOther();
}
}
});
this.setBounds(300, 300, 400, 400);
this.setVisible(true);
}

// 随机生成一个食物的位置
private void makeFood() {
int x = 40 + (int) (random() * 30) * 12;
int y = 10 + (int) (random() * 30) * 12;
food = new Rectangle(x, y, 10, 10);
}

// 做一些初始化的工作
private void initOther() {
dir = Direction.EAST;
sleepTime = 500;
my = new MySnake();
makeFood();
total = 3;
round = 1;
new Thread(new Runnable() {
public void run() {
go = true;
while (go) {
try {
Thread.sleep(sleepTime);
repaint();
} catch (Exception exe) {
exe.printStackTrace();
}
}
}
}).start();
}

// 处理多少关的函数
private void handleRound() {
if (total == 6) {
round = 2;
sleepTime = 300;
} else if (total == 10) {
round = 3;
sleepTime = 200;
} else if (total == 15) {
round = 4;
sleepTime = 100;
} else if (total == 18) {
round = 5;
sleepTime = 50;
} else if (total == 20) {
round = 6;
sleepTime = 20;
} else if (total > 21) {
round = 7;
sleepTime = 15;
}
}

// 把自己的组件全部画出来
public void paintComponent(Graphics g) {
g.setColor(Color.PINK);
g.fillRect(0, 0, this.getWidth(), this.getHeight());
g.setColor(Color.BLACK);
g.drawRect(40, 10, 358, 360);
if (go) {
my.move();
my.draw(g);
g.setFont(new Font("黑体", Font.BOLD, 20));
g.drawString("您的得分：" + (total * 10) + " 第" + round + "关", 40,
400);
} else {
g.setFont(new Font("黑体", Font.BOLD, 20));
g.drawString("游戏结束,按回车(ENTER)键重玩！", 40, 440);
}
g.setColor(Color.RED);
g.fillRect(food.x, food.y, food.width, food.height);
}

private class MySnake {
private ArrayList<Rectangle> list;

public MySnake() {
list = new ArrayList<Rectangle>();
list.add(new Rectangle(160 + 24, 130, 10, 10));
list.add(new Rectangle(160 + 12, 130, 10, 10));
list.add(new Rectangle(160, 130, 10, 10));
}

// 蛇移动的方法
public void move() {
if (isDead()) {
go = false;
return;
}
if (dir == Direction.EAST) {
Rectangle rec = list.get(0);
Rectangle rec1 = new Rectangle(rec.x
+ (blockWidth + blockSpace), rec.y, rec.width,
rec.height);
list.add(0, rec1);
} else if (dir == Direction.WEST) {
Rectangle rec = list.get(0);
Rectangle rec1 = new Rectangle(rec.x
- (blockWidth + blockSpace), rec.y, rec.width,
rec.height);
list.add(0, rec1);
} else if (dir == Direction.NORTH) {
Rectangle rec = list.get(0);
Rectangle rec1 = new Rectangle(rec.x, rec.y
- (blockWidth + blockSpace), rec.width, rec.height);
list.add(0, rec1);
} else if (dir == Direction.SOUTH) {
Rectangle rec = list.get(0);
Rectangle rec1 = new Rectangle(rec.x, rec.y
+ (blockWidth + blockSpace), rec.width, rec.height);
list.add(0, rec1);
}
if (isEat()) {
handleRound();
makeFood();
} else {
list.remove(list.size() - 1);
}

}

// 判断是否吃到了食物
private boolean isEat() {
if (list.get(0).contains(food)) {
total++;
return true;
} else
return false;
}

// 判断是否死了，如果碰壁或者自己吃到自己都算死了
private boolean isDead() {
Rectangle temp = list.get(0);
if (dir == Direction.EAST) {
if (temp.x == 388)
return true;
else {
Rectangle comp = new Rectangle(temp.x + 12, temp.y, 10, 10);
for (Rectangle rec : list) {
if (rec.contains(comp))
return true;
}
}
return false;
} else if (dir == Direction.WEST) {
if (temp.x == 40)
return true;
else {
Rectangle comp = new Rectangle(temp.x - 12, temp.y, 10, 10);
for (Rectangle rec : list) {
if (rec.contains(comp))
return true;
}
}
return false;
} else if (dir == Direction.NORTH) {
if (temp.y == 10)
return true;
else {
Rectangle comp = new Rectangle(temp.x, temp.y - 12, 10, 10);
for (Rectangle rec : list) {
if (rec.contains(comp))
return true;
}
}
return false;
} else if (dir == Direction.SOUTH) {
if (temp.y == 358)
return true;
else {
Rectangle comp = new Rectangle(temp.x, temp.y + 12, 10, 10);
for (Rectangle rec : list) {
if (rec.contains(comp))
return true;
}
}
return false;
} else {
return false;
}
}

// 把自己画出来
public void draw(Graphics g) {
for (Rectangle rec : list) {
g.fillRect(rec.x, rec.y, rec.width, rec.height);
}
}

}

public static void main(String arsg[]) {
JFrame jf = new JFrame("贪吃蛇");
Snake s = new Snake(jf);
jf.getContentPane().add(s, BorderLayout.CENTER);
jf.setBounds(300, 300, 500, 500);
jf.setVisible(true);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}

// 定义一个枚举，在此也可以用接口或者常量值代替
enum Direction {
EAST, SOUTH, WEST, NORTH;
}

㈧ 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，这条蛇由五个蔽铅坐标点连成
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));
//得到蛇头宏伍好部
point.x
=
point.x
-
1;//蛇头部横坐标减一，纵坐标不变橘禅
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
}

㈨ java 贪吃蛇代码。移动方面的问题。

你不是有个temp的标宴态岁识吗？可以用这个晌睁判断撒，记录上一状态。闭拍
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;
}
}
}

㈩ 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"对改销告象
snake = new Snake(this);
//创建"食物"对象
createNode();
this.setBounds(100, 100, WIDTH, HEIGHT);
//添加键盘斗纤监听器
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("贪核明吃蛇 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 List<Node> nodes = new ArrayList<Node>();
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;
}
}
}