java swing框架实现贪吃蛇游戏

本文实例为大家分享了java swing实现贪吃蛇游戏的具体代码，供大家参考，具体内容如下

1、编写main方法

package game;
import java.awt.graphics;

import javax.swing.*;
public class snakemain extends jframe {
 public snakemain() {
 snakewin win = new snakewin();
 add(win);
 settitle("̰贪吃蛇v1.0");
 setsize(435,390);
 setlocation(200, 200);
 setvisible(true);
 }
 public static void main(string[] args) {
 new snakemain();
 }
}

2、编写实体类

package game;
public class snakeact {
 private int x;
 private int 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;
 }
 
}

3、编写主要程序

package game;
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.util.list;
public class snakewin extends jpanel implements actionlistener,keylistener,runnable{
 int fenshu=0,speed=0;
 boolean start = false;
 int rx=0,ry=0;
 int eat1=0,eat2=0;
 jdialog dialog = new jdialog();
 jlabel label = new jlabel("你挂了！你的分数"+fenshu+"");
 jbutton ok = new jbutton("t_t");
 random r = new random();
 jbutton newgame,stopgame;
 list<snakeact> list = new arraylist<snakeact>();
 int temp=0;
 thread nthread;
 public snakewin() {
 newgame = new jbutton("开始");
 stopgame = new jbutton("结束");
 newgame.addactionlistener(this);
 stopgame.addactionlistener(this);
 this.addkeylistener(this);
 this.setlayout(new flowlayout(flowlayout.left));
 this.add(newgame);
 this.add(stopgame);
 dialog.setlayout(new gridlayout(2, 1));
 dialog.add(label);
 dialog.add(ok);
 dialog.setsize(200, 200);
 dialog.setlocation(200, 200);
 dialog.setvisible(false);
 ok.addactionlistener(this);
 }
 public void paintcomponent(graphics g){
 super.paintcomponent(g);
 g.drawrect(10, 40, 400, 300);
 g.drawstring("分数"+fenshu, 150, 15);
 g.drawstring("速度"+speed, 150, 35);
 g.setcolor(new color(0, 255, 0));
 if(start){
 g.fillrect(10+rx*10, 40+ry*10, 10, 10);
 for (int i = 0; i < list.size(); i++) {
 g.setcolor(new color(0, 0, 255));
 g.fillrect(10+list.get(i).getx()*10, 40+list.get(i).gety()*10, 10, 10);
 }
 }
 }
 public void actionperformed(actionevent e) {
 if(e.getsource()==newgame){
 newgame.setenabled(false);
 start = true;
 rx=r.nextint(40);ry=r.nextint(30);
 snakeact tempact = new snakeact();
 tempact.setx(20);
 tempact.sety(15);
 list.add(tempact);
 this.requestfocus();
 nthread = new thread(this);
 nthread.start();
 repaint();
 }
 if(e.getsource()==stopgame){
 system.exit(0);
 }
 if(e.getsource()==ok){
 list.clear();
 start=false;
 newgame.setenabled(true);
 dialog.setvisible(false);
 fenshu=0;
 speed=0;
 repaint();
 }
 }
 private void eat() {
 if (rx==list.get(0).getx()&&ry==list.get(0).gety()) {
 rx = r.nextint(40);ry = r.nextint(30);
 snakeact tempact = new snakeact();
 tempact.setx(list.get(list.size()-1).getx());
 tempact.sety(list.get(list.size()-1).gety());
 list.add(tempact);
 fenshu = fenshu+100*speed+10;
 eat1++;
 if(eat1-eat2>=4){
 eat2=eat1;
 speed++;
 }
 }
 }
 public void othermove(){
 snakeact tempact = new snakeact();
 for (int i = 0; i < list.size(); i++) {
 if (i==1) {
 list.get(i).setx(list.get(0).getx());
 list.get(i).sety(list.get(0).gety());
 }else if(i>1){
 tempact=list.get(i-1);
 list.set(i-1, list.get(i));
 list.set(i, tempact);
 }
 
 }
 }
 public void move(int x,int y){
 if (minyes(x, y)) {
 othermove();
 list.get(0).setx(list.get(0).getx()+x);
 list.get(0).sety(list.get(0).gety()+y);
 eat();
 repaint();
 }else {
 nthread = null;
 label.settext("你挂了！你的分数"+fenshu+"");
 dialog.setvisible(true);
 }
 
 }
 public boolean minyes(int x,int y){
 if (!maxyes(list.get(0).getx()+x,list.get(0).gety()+ y)) {
 return false;
 }
 return true;
 }
 public boolean maxyes(int x,int y){
 if (x<0||x>=40||y<0||y>=30) {
 return false;
 }
 for (int i = 0; i < list.size(); i++) {
 if (i>1&&list.get(0).getx()==list.get(i).getx()&&list.get(0).gety()==list.get(i).gety()) {
 return false;
 }
 }
 return true;
 }
 public void keypressed(keyevent e) {
 if(start){
 switch (e.getkeycode()) {
 case keyevent.vk_up:
 move(0, -1);
 temp=1;
 break;
 case keyevent.vk_down:
 move(0, 1);
 temp=2;
 break;
 case keyevent.vk_left:
 move(-1, 0);
 temp=3;
 break;
 case keyevent.vk_right:
 move(1, 0);
 temp=4;
 break;

 default:
 break;
 }
 }
 }
 public void keyreleased(keyevent e) {}
 public void keytyped(keyevent e) {}
 public void run() {
 while (start) {
 switch (temp) {
 case 1:
 move(0, -1);
 break;
 case 2:
 move(0, 1);
 break;
 case 3:
 move(-1, 0);
 break;
 case 4:
 move(1, 0);
 break;
 default:
 break;
 }
 repaint();
 try {
 thread.sleep(300-30*speed);
 } catch (interruptedexception e) {
 e.printstacktrace();
 }
 }
 
 }

}

4、效果图

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