用java的swing框架自己写贪吃蛇游戏

java是门高级语言，做游戏时适合做后台，但是用它也可以做游戏。闲来无事做的时候可以用来写点小游戏，练习练习预防早衰哈哈！

闲话不说了

下面是以前练习的作品，不怕大家笑话，那个时候用了一个礼拜才做出来的。

源码如下供大家学习。

使用的是java的 swing  Jframe Jpanel JButton   当然你也可以使用awt

package Tcs;
/**
*
*
*
* @author tx
*/
import java.awt.Color;
import java.awt.Container;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import java.util.Random;
import java.util.Timer;
import java.util.TimerTask;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class Snack extends JPanel implements KeyListener {
public JButton bt = new JButton("重新开始");
public ArrayList<Treasure> bw = new ArrayList<Treasure>();
public body[] b = new body[5];
public String state = "";
public ArrayList<point> p = new ArrayList<point>();
public static int score;

public Snack() {
this.addKeyListener(this);
shengc();

}

public void shengc() {
for (int i = 0; i < b.length; i++) {
b[i] = new body();
b[i].x = 10 - i * 10;
b[i].y = 150;

}

}

public int x = 0, y = 0;

public void paint(Graphics g) {
super.paint(g);
g.setColor(new Color(165,41,10));//RGB定义颜色的方法
g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20));
for (int i = 0; i < b.length; i++) {
body z1 = b[i];

g.drawString("O", b[i].x, b[i].y);
}
g.setColor(Color.BLUE);
g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 20));
g.drawString("SCORE:" + score, 30, 30);
paintjs(g);
paintbw(g);
}

public void paintjs(Graphics g) {
g.setColor(Color.BLACK);
if (state.length() > 1) {

g.drawString(state, 140, 200);
}

}

public void paintbw(Graphics g) {
g.setFont(new Font(Font.SANS_SERIF, Font.BOLD, 25));
g.setColor(Color.RED);
for (int i = 0; i < bw.size(); i++) {
g.drawString("o", bw.get(i).x, bw.get(i).y);

}

}

public boolean yj() {

if ((b[0].x < 400 && b[0].x > 0) && (b[0].y < 400 && b[0].y > 0)) {

return false;
} else {

state = "GAME OVER";
return true;
}

}

public void stmove() {

if (pzjc() == false && (yj() == false)) {
b[0].speed = 19;
b[0].move();

p.add(new point(b[0].x, b[0].y, b[0].fx));
if (p.size() > b.length) {

p.remove(p.get(0));
// System.out.println(p.size());
}
}
}

public int jl(body a, Treasure b) {
int jl = 0;
jl = (int) Math.sqrt((a.x - b.x) * (a.x - b.x) + (a.y - b.y)
* (a.y - b.y));

return jl;

}// 暂时无用

public void ssmove() {

if (p.size() >= b.length) {

for (int i = 0; i < b.length - 1; i++) {
b[i + 1].fx = p.get(i).fx;

b[i + 1].x = p.get(i).x;
b[i + 1].y = p.get(i).y;

}
}
}

Random r = new Random();

public void bzbw() {
if (bw.size() < 1) {

Treasure s = new Treasure();

s.x = r.nextInt(300) + 50;
s.y = r.nextInt(300) + 50;
bw.add(s);
}
}

public void bwxs() {
Timer t = new Timer();
t.schedule(new TimerTask() {

public void run() {

}
}, 0, 8000);

}

public boolean pzjc() {
for (int i = 1; i < p.size(); i++) {
if (p.get(0).equals(p.get(i))) {
state = "GAME OVER";
return true;

}
}
return false;
}

public void crush() {
if (bw.size() > 0) {

if (jl(b[0], bw.get(0)) < 8) {

bw.remove(0);
b = Arrays.copyOf(b, b.length + 1);
b[b.length - 1] = new body();

score += 10;

}
}

}

public void gameover() {
MouseListener k = new MouseAdapter() {

public void mouseClicked(MouseEvent e) {

super.mouseClicked(e);
state = "";
b = Arrays.copyOf(b, 5);
p.clear();
shengc();
score = 0;
bt.setVisible(false);

}

};
if (state.length() > 1) {
this.add(bt);
bt.setVisible(true);

bt.setBounds(150, 150, 100, 30);

bt.addMouseListener(k);
}
if(bt.isVisible()==false){this.remove(bt);}
this.requestFocus();

}

public void zmAction() {
Timer timer = new Timer();
timer.schedule(new TimerTask() {

public void run() {

bzbw();// 生成宝物
stmove();// 蛇头运动

ssmove();// 蛇身运动
crush();// 碰撞检测
gameover();
repaint();
}
}, 10, 83);

}

public static void main(String[] args) {
JFrame jf = new JFrame("贪吃蛇");
jf.setBounds(0, 0, 400, 400);
jf.setVisible(true);
jf.setLayout(null);
Container c = new Container();
c = jf.getContentPane();
c.setBackground(Color.WHITE);
jf.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Snack s = new Snack();
s.setVisible(true);
s.setBounds(0, 0, 600, 600);
s.setLocation(0, 0);
s.setBackground(Color.ORANGE);
jf.add(s);
s.zmAction();

s.requestFocus();
}

public void keyTyped(KeyEvent e) {

}

public void keyPressed(KeyEvent e) {
int k = e.getKeyCode();
switch (k) {
case KeyEvent.VK_UP:
if (b[0].fx != "sz" && b[0].fx != "xz") {
b[0].fx = "sz";
}
break;
case KeyEvent.VK_DOWN:
if (b[0].fx != "sz" && b[0].fx != "xz") {
b[0].fx = "xz";
}
break;
case KeyEvent.VK_LEFT:
if (b[0].fx != "zz" && b[0].fx != "yz") {
b[0].fx = "zz";
}
break;
case KeyEvent.VK_RIGHT:
if (b[0].fx != "zz" && b[0].fx != "yz") {
b[0].fx = "yz";
}
break;

}
repaint();

}

public void keyReleased(KeyEvent e) {

}

}
body类

package Tcs;

public class body {
public int x=0;
public int y=0;
public int speed;
private String str;
public String fx;
public body(){
fx="yz";
}
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 String getStr() {
return str;
}
public void setStr(String str) {
this.str = str;
}
public void sz(){

this.y+=-speed;
}
public void xz(){
this.y+=speed;
}
public void zz(){
this.x+=-speed;
}
public void yz(){
this.x+=speed;
}
public void move(){
if(fx=="xz"){
xz();
}
if(fx=="sz"){
sz();
}
if(fx=="zz"){
zz();
}
if(fx=="yz"){
yz();
}
}
}
宝物类
package Tcs;

public class Treasure {
public int x;
public int y;
public String str;
}


point类
package Tcs;

public class point {
public int x;

public int y;
public String fx;
public point(int x,int y,String fx){
this.x=x;
this.y=y;
this.fx=fx;
}

public boolean equals(Object o){
if(o instanceof point){
point p=(point)o;
if(p.x==this.x&&p.y==this.y){
return true;
}

}
if(o==this){return true;}
if(o==null){return false;}
return false;}
}