Java实现简单版贪吃蛇游戏
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本文实例为大家分享了Java实现简单版贪吃蛇游戏的具体代码，供大家参考，具体内容如下
这是一个比较简洁的小游戏，主要有三个类，一个主类，一个食物类，一个贪吃蛇类。
1、首先定义主类，主类中主要用来创建窗口
public class Main {
public static final int WIDTH=600;
public static final int HEIGHT=600;
public static void main(String[] args) {
JFrame win =new JFrame();
win.setVisible(true);
win.setSize(WIDTH, HEIGHT);
win.setDefaultCloseOperation(3);
win.setLocationRelativeTo(null);
SnakePanel panle =new SnakePanel();
win.add(panle);
SnakePanel.Key l = panle.new Key();
win.addKeyListener(l);
panle.addKeyListener(l);
panle.run();
}
}2、其次是定义食物类，食物有长和宽，还有在窗口中的位置
import java.util.Random;
public class Cell {
protected int x;
protected int y;
protected int width;
protected int height;
Random ran=new Random();
public Cell(){
Random ran=new Random();
this.x=ran.nextInt(25)*15+60;
this.y=ran.nextInt(25)*15+50;
this.width=15;
this.height=15;
}
public Cell(int x,int y){
this();
this.x=x;
this.y=y;
}
public int getX() {
return x;
}
public void setX(int x) {
this.x = x;
}
public int getY() {
return y;
}
public void setY(int y) {
this.y = y;
}
public int getWidth() {
return width;
}
public void setWidth(int width) {
this.width = width;
}
public int getHeight() {
return height;
}
public void setHeight(int height) {
this.height = height;
}
}3、最后是蛇类
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.util.Arrays;
import java.util.Timer;
import java.util.TimerTask;
import javax.swing.JPanel;
public class SnakePanel extends JPanel {
final int RIGHT=1;
final int LEFT=2;
final int UP=3;
final int DOWN=4;
int moved=1;
Cell food;
Cell[] snake;
public SnakePanel(){
food=new Cell();
snake=new Cell[5];
for(int i=0;i<snake.length;i++){
snake[i]=new Cell(210+i*15,50);
}
}
class Key extends KeyAdapter{
@Override
public void keyPressed(KeyEvent e){
int code=e.getKeyCode();
//System.out.println(code);
if(code==37&&moved!=RIGHT){
moved=LEFT;
}
if(code==39&&moved!=LEFT){
moved=RIGHT;
}
if(code==38&&moved!=DOWN){
moved=UP;
}
if(code==40&&moved!=UP){
moved=DOWN;
}
}
}
public void paint(Graphics g){
super.paint(g);
g.setFont(new Font(Font.SERIF,Font.BOLD,28));
g.drawRect(60, 50, 450, 450);
for(int i=15;i<=450;i+=15){
g.drawLine(60+i, 50, 60+i, 500);
}
for(int i=15;i<=450;i+=15){
g.drawLine(60, 50+i, 510, 50+i);
}
g.setColor(Color.BLUE);
g.drawString("欢迎来到贪吃蛇大战", 140, 40);
g.fillRect(food.x, food.y, food.width, food.height);
for(int i=0;i<snake.length;i++){
g.fillRect(snake[i].x, snake[i].y, snake[i].width, snake[i].height);
}
}
int speed = 250;
public void run(){
Timer timer=new Timer();
TimerTask task=new TimerTask(){
@Override
public void run() {
step();
repaint();
}
};
if(snake.length>=10){
speed=125;
}else if(snake.length>=20){
speed=60;
}else if(snake.length>=30){
speed=30;
}else if(snake.length>=40){
speed=15;
}
timer.schedule(task, 1000, speed);
}
public void step(){
for(int i=1;i<snake.length;i++){
snake[i-1] = snake[i];
}
Cell c = new Cell(snake[snake.length-1].getX(),snake[snake.length-1].getY());
if(moved == RIGHT){
c.setX(c.getX()+15);
}
if(moved == UP){
c.setY(c.getY()-15);
}
if(moved == DOWN){
c.setY(c.getY()+15);
}
if(moved == LEFT){
c.setX(c.getX()-15);
}
snake[snake.length-1] = c;
//System.out.println(c.getX()+","+c.getY());
if(snake[snake.length-1].getX()>510||
snake[snake.length-1].getX()<60||
snake[snake.length-1].getY()>500||
snake[snake.length-1].getY()<50){
System.exit(0);
}
if(snake[snake.length-1].x==food.x &&snake[snake.length-1].y==food.y){
snake=Arrays.copyOf(snake,snake.length+1);
snake[snake.length-1]=food;
food=new Cell();
}
}
}至此，一个简单的贪吃蛇小游戏就完成了。
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持编程网。
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