飞机大战java代码

编写飞机大战游戏的Java代码是一个相对庞大的任务，因此我将为你提供一个简单版本的示例代码，以便你有一个基本的起点。

java
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.ArrayList;
import java.util.List;
import java.util.Random;
class Bullet {
int x, y;
public Bullet(int x, int y) {
this.x = x;
this.y = y;
}
}
class Enemy {
int x, y;
public Enemy(int x, int y) {
this.x = x;
this.y = y;
}
}
class Plane {
int x, y;
public Plane(int x, int y) {
this.x = x;
this.y = y;
}
}
public class PlaneGame extends JFrame {
private List<Bullet> bullets;
private List<Enemy> enemies;
private Plane plane;
public PlaneGame() {
bullets = new ArrayList<>();
enemies = new ArrayList<>();
plane = new Plane(250, 250);
addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {}
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_SPACE) {
bullets.add(new Bullet(plane.x, plane.y));
}
}
@Override
public void keyReleased(KeyEvent e) {}
});
setFocusable(true);
setFocusTraversalKeysEnabled(false);
}
public void move() {
for (Bullet bullet : bullets) {
bullet.y -= 5;
}
for (Enemy enemy : enemies) {
enemy.y += 2;
}
}
public void generateEnemy() {
Random random = new Random();
int x = random.nextInt(500);
int y = 0;
enemies.add(new Enemy(x, y));
}
public void checkCollision() {
List<Bullet> bulletsToRemove = new ArrayList<>();
List<Enemy> enemiesToRemove = new ArrayList<>();
for (Bullet bullet : bullets) {
for (Enemy enemy : enemies) {
if (bullet.x >= enemy.x && bullet.x <= enemy.x + 30
&& bullet.y >= enemy.y && bullet.y <= enemy.y + 30) {
bulletsToRemove.add(bullet);
enemiesToRemove.add(enemy);
}
}
}
bullets.removeAll(bulletsToRemove);
enemies.removeAll(enemiesToRemove);
}
@Override
public void paint(Graphics g) {
super.paint(g);
g.setColor(Color.BLUE);
g.fillRect(plane.x, plane.y, 30, 30);
for (Bullet bullet : bullets) {
g.setColor(Color.RED);
g.fillRect(bullet.x, bullet.y, 5, 10);
}
for (Enemy enemy : enemies) {
g.setColor(Color.GREEN);
g.fillRect(enemy.x, enemy.y, 30, 30);
}
checkCollision();
}
public static void main(String[] args) {
PlaneGame game = new PlaneGame();
game.setSize(500, 500);
game.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
game.setVisible(true);
while (true) {
game.move();
game.generateEnemy();
game.repaint();
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}

这个代码仅仅是一个简单的飞机大战游戏示例，缺乏很多功能和优化。你可能需要根据你的需求来添加更多的功能，比如得分系统、更复杂的敌人行为、更多的关卡等。此外，这个代码使用了简单的while (true)循环来模拟游戏循环，实际上在实际项目中应该使用更合适的游戏引擎。

java
import javax.swing.*;
import java.awt.*;
import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Random;
class Bullet {
int x, y;
public Bullet(int x, int y) {
this.x = x;
this.y = y;
}
}
class Enemy {
int x, y;
public Enemy(int x, int y) {
this.x = x;
this.y = y;
}
}
class Plane {
int x, y;
public Plane(int x, int y) {
this.x = x;
this.y = y;
}
}
public class PlaneGame extends JFrame {
private List<Bullet> bullets;
private List<Enemy> enemies;
private Plane plane;
private int score;
public PlaneGame() {
bullets = new ArrayList<>();
enemies = new ArrayList<>();
plane = new Plane(250, 250);
score = 0;
addKeyListener(new KeyListener() {
@Override
public void keyTyped(KeyEvent e) {}
@Override
public void keyPressed(KeyEvent e) {
if (e.getKeyCode() == KeyEvent.VK_SPACE) {
bullets.add(new Bullet(plane.x + 12, plane.y));
} else if (e.getKeyCode() == KeyEvent.VK_LEFT) {
plane.x -= 5;
} else if (e.getKeyCode() == KeyEvent.VK_RIGHT) {
plane.x += 5;
}
}
@Override
public void keyReleased(KeyEvent e) {}
});
setFocusable(true);
setFocusTraversalKeysEnabled(false);
}
public void move() {
Iterator<Bullet> bulletIterator = bullets.iterator();
while (bulletIterator.hasNext()) {
Bullet bullet = bulletIterator.next();
bullet.y -= 5;
if (bullet.y < 0) {
bulletIterator.remove();
}
}
Iterator<Enemy> enemyIterator = enemies.iterator();
while (enemyIterator.hasNext()) {
Enemy enemy = enemyIterator.next();
enemy.y += 2;
if (enemy.y > 500) {
enemyIterator.remove();
score++;
}
}
}
public void generateEnemy() {
Random random = new Random();
int x = random.nextInt(500);
int y = 0;
enemies.add(new Enemy(x, y));
}
public void checkCollision() {
Iterator<Bullet> bulletIterator = bullets.iterator();
while (bulletIterator.hasNext()) {
Bullet bullet = bulletIterator.next();
Iterator<Enemy> enemyIterator = enemies.iterator();
while (enemyIterator.hasNext()) {
Enemy enemy = enemyIterator.next();
if (bullet.x >= enemy.x && bullet.x <= enemy.x + 30
&& bullet.y >= enemy.y && bullet.y <= enemy.y + 30) {
bulletIterator.remove();
enemyIterator.remove();
score += 10;
}
}
}
}
@Override
public void paint(Graphics g) {
super.paint(g);
g.setColor(Color.BLUE);
g.fillRect(plane.x, plane.y, 30, 30);
for (Bullet bullet : bullets) {
g.setColor(Color.RED);
g.fillRect(bullet.x, bullet.y, 5, 10);
}
for (Enemy enemy : enemies) {
g.setColor(Color.GREEN);
g.fillRect(enemy.x, enemy.y, 30, 30);
}
g.setColor(Color.BLACK);
g.drawString("Score: " + score, 10, 20);
checkCollision();
}
public static void main(String[] args) {
PlaneGame game = new PlaneGame();
game.setSize(500, 500);
game.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
game.setVisible(true);
while (true) {
game.move();
game.generateEnemy();
game.repaint();
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}

这个版本的代码增加了飞机的左右移动功能，以及分数计算。这依然是一个简单的示例，可能需要进一步改进和扩展以满足你的实际需求。