雷电 射击游戏
重点
1, 处理发射的子弹
当按下空格键时，将激光弹同时加到容器和数组列表中。 创建线程和永久循环后， 通过for循环语句和setBounds方法让太空飞船向上射击激光弹。
代码还不能运行， 仅供参考
1, 处理发射的子弹
当按下空格键时，将激光弹同时加到容器和数组列表中。 创建线程和永久循环后， 通过for循环语句和setBounds方法让太空飞船向上射击激光弹。
代码还不能运行， 仅供参考
package chapter4;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import java.util.*;
import java.applet.AudioClip;
import java.net.MalformedURLException;
import java.net.*;
public class SpaceDestroyers extends JFrame implements
MouseMotionListener, KeyListener {
Container cont;
// 游戏等级
int currentLevel = 1;
// 外星人数量
int numOfEnemies = 1;
// 背景图片background
JLabel backgrounD = new JLabel(new ImageIcon
("background.PNG"));
// 封面图片
JLabel front = new JLabel(new ImageIcon("front.png"));
// 飞机发射图片
ImageIcon shipBullet = new ImageIcon("shipBullets.PNG");
ImageIcon enemyBullet = new ImageIcon("enemyBullets.PNG");
// 能量包
JLabel powerup = new JLabel(new ImageIcon("powerup.PNG"));
// 飞机
ImageIcon shipImg = new ImageIcon("ship.PNG");
ImageIcon shipHit = new ImageIcon("shipHit.PNG");
// 敌人
ImageIcon enemyImg = new ImageIcon("enemy.PNG");
ImageIcon enemyImg1 = new ImageIcon("ufoImg.png");
ImageIcon enemyImg2 = new ImageIcon("bigenemy1.png");
ImageIcon enemyImg3 = new ImageIcon("bigenemy.png");
ImageIcon enemyHit = new ImageIcon("enemyHit.PNG");
// 能量加强包能量释放
JLabel powerAttack = new JLabel(new ImageIcon
("powerAttack.PNG"));
// 医疗包
JLabel healthPack = new JLabel(new ImageIcon("health.PNG"));
// 游戏得分
int score = 0;
// 显示分数标签
JLabel scoreDisplay = new JLabel();
// 健康指数
int health = 200;
// 最后得分
int finalScore = 0;
// 能量加强包是否释放能量
boolean useAttack = false;
JLabel ship = new JLabel(shipImg);
// 飞机发射的子弹数组
ArrayList playerBullets = new ArrayList();
// 敌人发射弹的数组
ArrayList enemyBullets = new ArrayList();
// 敌人的数组
ArrayList enemies = new ArrayList();
// 背景音乐
// AudioClip sound = loadSound("beijing.mp3");
public SpaceDestroyers() {
super("太空保卫战");
setVisible(true);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(500, 610);
cont = getContentPane();
cont.setLayout(null);
front.setBounds(-10, -20, 500, 610);
backgrounD.setBounds(0, 0, 600, 600);
ship.setBounds(225, 500, 50, 50);
cont.add(front);
title();
cont.remove(front);
// cont.setBackground(Color.BLACK);
cont.add(ship);
scoreDisplay.setBounds(10, 10, 400, 30);
scoreDisplay.setFont(new Font("Time New Roman",
Font.BOLD, 15));
scoreDisplay.setForeground(Color.WHITE);
cont.add(scoreDisplay);
cont.add(backgrounD);
addMouseMotionListener(this);
addKeyListener(this);
populateEnemies();
Play play = new Play();
play.start();
// backgrounD.setBounds(0, 0, 600, 600);
// cont.add(backgrounD);
setContentPane(cont);
}
// public void paint(Graphics g)
// {
// try
// {
// g.setColor(Color.WHITE);
// String name = "--太空保卫战背景--";
// Font f = new Font(name, Font.BOLD, 20);
// String xinxi=g.setFont(f);
// JLabel information = new JLabel(xinxi);
// cont.add(information);
// information.setBounds(-60, -300, 600, 200);
// do
// {
// information.setBounds(information.getX(),information.getY() + 1, 600,
// 200);
// Thread.sleep(5);
// } while (information.getY() < 700);
// }
// catch (Exception e) { }
// }
public void title() {
try {
JLabel title = new JLabel(new ImageIcon
("title.PNG"));
cont.add(title);
title.setBounds(-60, -300, 600, 200);
do {
title.setBounds(title.getX(),
title.getY() + 1, 600, 200);
Thread.sleep(10);
} while (title.getY() < 560);
// repaint();
} catch (Exception e) {
}
}
// 程序自动生成敌人
public void populateEnemies() {
for (int i = 0; i <= numOfEnemies; i++) {
if (i % 2 == 0) {
JLabel tempEnemy = new JLabel
(enemyImg);
int randLocation = (int) (Math.random()
* 500);
enemies.add(tempEnemy);
cont.add((JLabel) (enemies.get(i)));
tempEnemy.setBounds(randLocation, 10,
30, 30);
cont.setComponentZOrder(((JLabel)
(enemies.get(i))), 0);
} else if (i % 4 == 0) {
JLabel tempEnemy2 = new JLabel
(enemyImg2);
int randLocation2 = (int) (Math.random
() * 500);
enemies.add(tempEnemy2);
cont.add((JLabel) (enemies.get(i)));
tempEnemy2.setBounds(randLocation2,
10, 30, 30);
cont.setComponentZOrder(((JLabel)
(enemies.get(i))), 0);
} else if (i % 3 == 0) {
JLabel tempEnemy3 = new JLabel
(enemyImg3);
int randLocation3 = (int) (Math.random
() * 500);
enemies.add(tempEnemy3);
cont.add((JLabel) (enemies.get(i)));
tempEnemy3.setBounds(randLocation3,
10, 30, 30);
cont.setComponentZOrder(((JLabel)
(enemies.get(i))), 0);
} else {
JLabel tempEnemy1 = new JLabel
(enemyImg1);
int randLocation1 = (int) (Math.random
() * 500);
enemies.add(tempEnemy1);
cont.add((JLabel) (enemies.get(i)));
tempEnemy1.setBounds(randLocation1,
10, 30, 30);
cont.setComponentZOrder(((JLabel)
(enemies.get(i))), 0);
}
}
}
public class Play extends Thread {
// 游戏结束
public void stopp() {
}
public void run() {
while (true) {
try {
for (int i = 0; i <
enemies.size(); i++) {
JLabel tempEnemy =
(JLabel) (enemies.get(i));
int distance = (int)
(Math.random() * 2);
tempEnemy.setBounds
(tempEnemy.getX(), tempEnemy.getY() + distance, 30, 30);
// 能量包是否释放能量
if (useAttack) {
// 释放的能量是否击中敌机
if
(powerAttack.getBounds().intersects(
tempEnemy.getBounds())) {
cont.remove(tempEnemy);
i--;
numOfEnemies--;
score
+= 15;
}
}
if
(tempEnemy.getBounds().intersects(ship.getBounds())) {
health--;
cont.remove
(tempEnemy);
}
if (tempEnemy.getY() >
550) {
tempEnemy.setBounds(tempEnemy.getX(), 10, 30, 30);
}
int fire = (int)
(Math.random() * 2500);
if (fire <= 1) {
JLabel
tempBullet = new JLabel(enemyBullet);
// tempBullet.setBounds(ship.getX() + 5,
// ship.getY()+30, 10, 20);
tempBullet.setBounds(tempEnemy.getX() + 5,
tempEnemy.getY() + 30, 10,
20);
enemyBullets.add(tempBullet);
cont.add
((JLabel) (enemyBullets.get(enemyBullets.size() - 1)));
cont.setComponentZOrder((JLabel) (enemyBullets
.get(enemyBullets.size()
- 1)), 0);
}
}
// 是否歼灭了敌人
boolean breakAll = false;
for (int
i = 0; i < playerBullets.size(); i++) {
JLabel temp =
((JLabel) (playerBullets.get(i)));
temp.setBounds
(temp.getX(), temp.getY() - 8, 10, 20);
if (temp.getY() < 0) {
cont.remove
(temp);
playerBullets.remove(i);// shipBullet
i--;
}
for (int j = 0; j <
enemies.size(); j++) {
JLabel
tempEnemy = (JLabel) (enemies.get(j));
if
(temp.getBounds().intersects(tempEnemy.getBounds())) {
score
+= 1000;
tempEnemy.setIcon(enemyHit);
Thread.sleep(100);
enemies.remove(j);
cont.remove(tempEnemy);
numOfEnemies--;
if
(numOfEnemies <= 0) {
currentLevel++;// 升级
if (currentLevel % 3 == 0)
{
cont.add(powerup);
int randLoc = (int) (Math.random() * 450);
powerup.setBounds(randLoc, 0, 30, 30);
}
if (currentLevel % 5 == 0)
{
cont.add(healthPack);
int randLoc = (int) (Math.random() * 450);
healthPack
.setBounds(randLoc, 0, 30, 30);
}
// numOfEnemies = currentLevel *
// currentLevel;//敌机数量翻倍
numOfEnemies = (int) (Math.random() * 5) + 1;// 随机产生敌机数量
populateEnemies();
breakAll = true;
break;
}
}
}
if (breakAll) {
break;
}
}
if (useAttack) {
powerAttack.setBounds
(0, powerAttack.getY() - 1, 500, 10);
if (powerAttack.getY()
< 0) {
cont.remove(powerAttack);
useAttack = false;
currentLevel++;
// numOfEnemies= currentLevel *
// currentLevel;//敌机数量翻倍
numOfEnemies = (int) (Math.random() * 5) + 1;// 随机产生敌机数量
populateEnemies();
}
}
// 如果游戏级数为3的倍数，就显示能量包为
if (currentLevel % 3 == 0) {
powerup.setBounds
(powerup.getX(), powerup.getY() + 1, 30, 30);
if (powerup.getBounds
().intersects(ship.getBounds())) {
useAttack =
true;
cont.add
(powerAttack);
powerAttack.setBounds(0, ship.getY(), 500, 10);
cont.remove
(powerup);
powerup.setBounds(-200, -200, 30, 30);
}
}
if (currentLevel % 5 == 0) {
healthPack.setBounds
(healthPack.getX(), healthPack.getX() + 1, 30, 30);
if
(healthPack.getBounds().intersects(ship.getBounds())) {
health += 50;
score += 100;
cont.remove
(healthPack);
healthPack.setBounds(-100, -100, 30, 30);
}
}
// 敌人是否击中飞机
breakAll = false;
for (int i = 0; i <
enemyBullets.size(); i++) {
JLabel temp =
((JLabel) (enemyBullets.get(i)));
temp.setBounds
(temp.getX(), temp.getY() + 2, 10, 20);
if (temp.getY() > 550) {
cont.remove
(temp);
enemyBullets.remove(i);
i--;
}
if (ship.getBounds
().intersects(temp.getBounds())) {
ship.setIcon
(shipHit);
Thread.sleep
(100);
ship.setIcon
(shipImg);
score -= 100;
health -= 50;
cont.remove
(temp);
enemyBullets.remove(i);
numOfEnemies--;
if (health <=
0) {
// 游戏结束了
// stopp();
// break;
}
if
(numOfEnemies <= 0) {
currentLevel++;
// numOfEnemies = currentLevel * currentLevel;
numOfEnemies = (int) (Math.random() * 5) + 1;// 随机产生敌机数量
populateEnemies();
breakAll = true;
break;
}
}
if (breakAll) {
break;
}
}
scoreDisplay.setText("等级: "
+ currentLevel + " 得分: " + score);
cont.repaint();
Thread.sleep(10);
} catch (Exception e) {
System.out.println
(e.getMessage());
}
}
}
}
public void mouseMoved(MouseEvent event) {
// ship.setBounds(event.getX() - 25, event.getY() - 40, 50, 50);
}
public void mouseDragged(MouseEvent event) {
// new SpaceDestroyers();
}
// 使用空格键发射弹
public void keyPressed(KeyEvent event) {
if (event.getKeyChar() == ' ') {
JLabel tempBullet = new JLabel(shipBullet);
tempBullet.setBounds(ship.getX() + 20,
ship.getY() - 20, 10, 20);
playerBullets.add(tempBullet);
cont.add((JLabel) (playerBullets.get
(playerBullets.size() - 1)), 0);
score -= 2;
}
if (event.getKeyCode() == KeyEvent.VK_UP)// 上
{
if (ship.getY() <= 0) {
ship.setBounds(ship.getX(), 0, 50,
50);
} else {
ship.setBounds(ship.getX(), ship.getY
() - 20, 50, 50);
}
}
if (event.getKeyCode() == KeyEvent.VK_DOWN)// 下
{
if (ship.getY() >= 520) {
ship.setBounds(ship.getX(), 520, 50,
50);
} else {
ship.setBounds(ship.getX(), ship.getY
() + 20, 50, 50);
}
}
if (event.getKeyCode() == KeyEvent.VK_LEFT)// 左
{
if (ship.getX() <= -5) {
ship.setBounds(-5, ship.getY(), 50,
50);
} else {
ship.setBounds(ship.getX() - 20,
ship.getY(), 50, 50);
}
}
if (event.getKeyCode() == KeyEvent.VK_RIGHT)// 右
{
if (ship.getX() >= 450)
ship.setBounds(450, ship.getY(), 50,
50);
else
ship.setBounds(ship.getX() + 20,
ship.getY(), 50, 50);
}
}
public void keyReleased(KeyEvent event) {
}
public void keyTyped(KeyEvent event) {
}
public static void main(String[] args) {
try {
URL cb;
File f = new File("D:\\软件\\Java\\eclipse 安装\\phone\\beijing.wav");
cb = f.toURL();
AudioClip aau;
aau = Applet.newAudioClip(cb);
// aau.play();
aau.loop();
new SpaceDestroyers();
} catch (MalformedURLException e) {
e.printStackTrace();
}
}
}