「java贪吃蛇控制台」贪吃蛇程序java实现
今天给各位分享java贪吃蛇控制台的知识，其中也会对贪吃蛇程序java实现进行解释，如果能碰巧解决你现在面临的问题，别忘了关注本站，现在开始吧！
本文目录一览：
急啊！Java大神帮忙，我用Java做的贪吃蛇，但是方向键不可以控制，怎么回事啊
从你的代码来看，方向键的监听是正常的，可以控制，只是你没有创建一个线程来执行蛇的移动，使得整个执行为单线程，所以蛇移动时按键是不会有反应，只有结束后才在控制台显示。
java贪吃蛇Snake类怎么写
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
//Main Class
public class GreedSnake extends KeyAdapter{
JFrame mainFrame;
Canvas paintCanvas;
JLabel labelScore;//计分牌
SnakeModel snakeModel=null;// 蛇
public static final int DEFAULT_WIDTH=500;
public static final int DEFAULT_HEIGHT=300;
public static final int nodeWidth=10;
public static final int nodeHeight=10;
// GreedSnake():初始化游戏界面
public GreedSnake(){
// 设置界面元素
mainFrame=new JFrame("贪吃蛇游戏");
Container cp=mainFrame.getContentPane();
labelScore=new JLabel("所得分数为:",JLabel.CENTER);
cp.add(labelScore,BorderLayout.NORTH);
paintCanvas=new Canvas();
paintCanvas.setSize(DEFAULT_WIDTH+1,DEFAULT_HEIGHT+1);
paintCanvas.addKeyListener(this);
cp.add(paintCanvas,BorderLayout.CENTER);
JPanel panelButtom=new JPanel();
panelButtom.setLayout(new BorderLayout());
JLabel labelHelp;// 帮助信息
labelHelp=new JLabel("按 PageUP 或 PageDown 键改变速度",JLabel.CENTER);
panelButtom.add(labelHelp,BorderLayout.NORTH);
labelHelp=new JLabel("按 Enter 或 S 键重新开始游戏",JLabel.CENTER);
panelButtom.add(labelHelp,BorderLayout.CENTER);
labelHelp=new JLabel("按 SPACE 键或 P 键暂停游戏",JLabel.CENTER);
panelButtom.add(labelHelp,BorderLayout.SOUTH);
cp.add(panelButtom,BorderLayout.SOUTH);
mainFrame.addKeyListener(this);
mainFrame.pack();
mainFrame.setResizable(false);//设置窗口大小不能变化
mainFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
mainFrame.setVisible(true);
begin();
}
// keyPressed():按键检测
public void keyPressed(KeyEvent e){
int keyCode=e.getKeyCode();
if(snakeModel.running)
switch(keyCode){
case KeyEvent.VK_UP:
snakeModel.changeDirection(SnakeModel.UP);
break;
case KeyEvent.VK_DOWN:
snakeModel.changeDirection(SnakeModel.DOWN);
break;
case KeyEvent.VK_LEFT:
snakeModel.changeDirection(SnakeModel.LEFT);
break;
case KeyEvent.VK_RIGHT:
snakeModel.changeDirection(SnakeModel.RIGHT);
break;
case KeyEvent.VK_ADD:
case KeyEvent.VK_PAGE_UP:
snakeModel.speedUp();// 加速
break;
case KeyEvent.VK_SUBTRACT:
case KeyEvent.VK_PAGE_DOWN:
snakeModel.speedDown();// 减速
break;
case KeyEvent.VK_SPACE:
case KeyEvent.VK_P:
snakeModel.changePauseState();// 暂停或继续
break;
default:
}
//重新开始
if(keyCode==KeyEvent.VK_S || keyCode==KeyEvent.VK_ENTER){
snakeModel.running=false;
begin();
}
}
// repaint（）：绘制游戏界面（包括蛇和食物）
void repaint(){
Graphics g=paintCanvas.getGraphics();
//draw background
g.setColor(Color.LIGHT_GRAY);
g.fillRect(0,0,DEFAULT_WIDTH,DEFAULT_HEIGHT);
//draw the snake
g.setColor(Color.BLACK);
LinkedList na=snakeModel.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=snakeModel.food;
drawNode(g,n);
updateScore();
}
// drawNode（）：绘画某一结点（蛇身或食物）
private void drawNode(Graphics g,Node n){
g.fillRect(n.x*nodeWidth,n.y*nodeHeight,nodeWidth-1,nodeHeight-1);
}
// updateScore（）：改变计分牌
public void updateScore(){
String s="所得分数为: "+snakeModel.score;
labelScore.setText(s);
}
// begin（）：游戏开始，放置贪吃蛇
void begin(){
if(snakeModel==null||!snakeModel.running){
snakeModel=new SnakeModel(this,DEFAULT_WIDTH/nodeWidth,
DEFAULT_HEIGHT/nodeHeight);
(new Thread(snakeModel)).start();
}
}
// main（）：主函数
public static void main(String[] args){
GreedSnake gs=new GreedSnake();
}
}
//Node:结点类
class Node{
int x;
int y;
Node(int x,int y){
this.x=x;
this.y=y;
}
}
//SnakeModel:贪吃蛇模型
class SnakeModel implements Runnable{
GreedSnake gs;
boolean[][] matrix;// 界面数据保存在数组里
LinkedList nodeArray=new LinkedList();
Node food;
int maxX;//最大宽度
int maxY;//最大长度
int direction=2;//方向
boolean running=false;
int timeInterval=200;// 间隔时间（速度）
double speedChangeRate=0.75;// 速度改变程度
boolean paused=false;// 游戏状态
int score=0;
int countMove=0;
// UP和DOWN是偶数，RIGHT和LEFT是奇数
public static final int UP=2;
public static final int DOWN=4;
public static final int LEFT=1;
public static final int RIGHT=3;
// GreedModel():初始化界面
public SnakeModel(GreedSnake gs,int maxX,int maxY){
this.gs=gs;
this.maxX=maxX;
this.maxY=maxY;
matrix=new boolean[maxX][];
for(int i=0;imaxX;++i){
matrix[i]=new boolean[maxY];
Arrays.fill(matrix[i],false);// 没有蛇和食物的地区置false
}
//初始化贪吃蛇
int initArrayLength=maxX20 ? 10 : maxX/2;
for(int i=0;iinitArrayLength;++i){
int x=maxX/2+i;
int y=maxY/2;
nodeArray.addLast(new Node(x,y));
matrix[x][y]=true;// 蛇身处置true
}
food=createFood();
matrix[food.x][food.y]=true;// 食物处置true
}
// changeDirection():改变运动方向
public void changeDirection(int newDirection){
if(direction%2!=newDirection%2){// 避免冲突
direction=newDirection;
}
}
// moveOn():贪吃蛇运动函数
public boolean moveOn(){
Node n=(Node)nodeArray.getFirst();
int x=n.x;
int y=n.y;
switch(direction){
case UP:
y--;
break;
case DOWN:
y++;
break;
case LEFT:
x--;
break;
case RIGHT:
x++;
break;
}
if((0=xxmaxX)(0=yymaxY)){
if(matrix[x][y]){// 吃到食物或者撞到身体
if(x==food.xy==food.y){// 吃到食物
nodeArray.addFirst(food);// 在头部加上一结点
//计分规则与移动长度和速度有关
int scoreGet=(10000-200*countMove)/timeInterval;
score+=scoreGet0 ? scoreGet : 10;
countMove=0;
food=createFood();
matrix[food.x][food.y]=true;
return true;
}
else return false;// 撞到身体
}
else{//什么都没有碰到
nodeArray.addFirst(new Node(x,y));// 加上头部
matrix[x][y]=true;
n=(Node)nodeArray.removeLast();// 去掉尾部
matrix[n.x][n.y]=false;
countMove++;
return true;
}
}
return false;//越界（撞到墙壁）
}
//run():贪吃蛇运动线程
public void run(){
running=true;
while(running){
try{
Thread.sleep(timeInterval);
}
catch(Exception e){
break;
}
if(!paused){
if(moveOn()){// 未结束
gs.repaint();
}
else{//游戏结束
JOptionPane.showMessageDialog(null,"GAME OVER",
"Game Over",JOptionPane.INFORMATION_MESSAGE);
break;
}
}
}
running=false;
}
// createFood():生成食物及放置地点
private Node createFood(){
int x=0;
int y=0;
do{
Random r=new Random();
x=r.nextInt(maxX);
y=r.nextInt(maxY);
}
while(matrix[x][y]);
return new Node(x,y);
}
// speedUp():加快蛇运动速度
public void speedUp(){
timeInterval*=speedChangeRate;
}
// speedDown():放慢蛇运动速度
public void speedDown(){
timeInterval/=speedChangeRate;
}
// changePauseState(): 改变游戏状态（暂停或继续）
public void changePauseState(){
paused=!paused;
}
}
贪吃蛇 java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;
ArrayListPoint 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 ArrayListPoint();
listBody = new ArrayListPoint();
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;
}
}
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发布于：2022-11-24，除非注明，否则均为原创文章，转载请注明出处。