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java编写的贪吃蛇代码 用java贪吃蛇
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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java编写的贪吃蛇代码了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java编写的贪吃蛇代码了
{
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
}
相关问答
Q1: 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java编写的贪吃蛇代码的速度
* 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java编写的贪吃蛇代码，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;
}
}
}
Q2: 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;imaxX;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;jmaxY;j++){
//matrix[i][j]=false;
//}
}
////////////////////////////////////////////////////////////////////
//init nodeArray
int initlength=10;
for(int i=0;iinitlength;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.xy==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;ilist.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();
}
}
Q3: 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.lcdui.*;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.lcdui.*;/**
* 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){}
}
}
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