微信小游戏飞机大战的java实现版本，java初学者练手项目。.zip

import javax.imageio.ImageIO; import javax.swing.*; import java.awt.*; import java.awt.image.BufferedImage; import java.io.File; import java.util.LinkedList; import java.util.Random; import java.util.Timer; import java.util.TimerTask; public class GameRun extends JPanel { public static BufferedImage hero0; public static BufferedImage hero1; public static BufferedImage enemy; public static BufferedImage bullet; public static BufferedImage background; public static BufferedImage pause; public static BufferedImage menu; public static BufferedImage gameover; public static int panelWidth ; public static int panelHeight ; private HeroPlane heroPlane = new HeroPlane(); private LinkedList<Bullet> bullets = new LinkedList<>(); private LinkedList<EnemyPlane> enemyPlanes = new LinkedList<>(); private int enterEnemyIndex = 0; private int shootBulletIndex = 0; private int score = 0; private Random random = new Random(); public enum STATE { START, PAUSE, GAME_OVER, RUNNING } private STATE state = STATE.START; // 主流程控制 Timer timer = new Timer(); static { try { //必须处理异常。 background = ImageIO.read(new File("resource/background.png")); hero0 = ImageIO.read(new File("resource/hero0.png")); hero1 = ImageIO.read(new File("resource/hero1.png")); bullet = ImageIO.read(new File("resource/bullet.png")); enemy = ImageIO.read(new File("resource/enemy.png")); pause = ImageIO.read(new File("resource/pause.png")); menu = ImageIO.read(new File("resource/menu.png")); gameover = ImageIO.read(new File("resource/gameover.png")); panelWidth = background.getWidth(); panelHeight = background.getHeight(); } catch (Exception e) { e.printStackTrace(); } } public HeroPlane getHeroPlane() { return heroPlane; } public void pauseGame() { switch (state) { case RUNNING:{ state = STATE.PAUSE; break; } case PAUSE:{ state = STATE.RUNNING; break; } case START: { state = STATE.RUNNING; break; } } } public void paint(Graphics g) { g.drawImage(background, 0, 0, null); paintHero(g); paintEnemy(g); paintBullet(g); paintScore(g); paintState(g); } public void paintHero(Graphics g) { int x = heroPlane.getPosition_x() - heroPlane.getWidth()/2; int y = heroPlane.getPosition_y() - heroPlane.getHeight()/2; g.drawImage(heroPlane.getImage(), x, y, null); } public void paintEnemy(Graphics g) { for (EnemyPlane enemy:enemyPlanes) { int x = enemy.getPosition_x() - enemy.getWidth()/2; int y = enemy.getPosition_y() - enemy.getHeight()/2; g.drawImage(enemy.getImage(), x, y, null); } } public void paintBullet(Graphics g) { for (Bullet b: bullets) { int x = b.getPosition_x()- b.getWidth()/2; int y = b.getPosition_y()- b.getHeight()/2; g.drawImage(b.getImage(), x, y, null); } } public void paintScore(Graphics g) { Font font = new Font(Font.SANS_SERIF, Font.BOLD, 14); // 字体 g.setColor(new Color(0x3A3B3B)); g.setFont(font); // 设置字体 g.drawString("SCORE:" + score, 10, 20); // 画分数 g.drawString("LIFE:" + heroPlane.getLife(), 10, 40); // 画命 } public void paintState(Graphics g) { switch (state) { case PAUSE: g.drawImage(pause, 0, 0, null); break; case START: g.drawImage(menu, 0, 0, null); break; case GAME_OVER: g.drawImage(gameover, 0, 0, null); break; } } public void createNewEnemy() { enterEnemyIndex++; if (enterEnemyIndex%40 == 0) { EnemyPlane enemyPlane = new EnemyPlane(); int x = random.nextInt(300); enemyPlane.setPosition_x(x); enemyPlane.setPosition_y(20); enemyPlanes.add(enemyPlane); } } public void shootBullet() { shootBulletIndex++; if (shootBulletIndex % 30 == 0) { Bullet[] bs = heroPlane.shootBullet(); for (Bullet b:bs) { bullets.add(b); } } } public void deleteDeadFlyingObj() { //子弹飞出画面，判定死亡，从列表中删除 LinkedList<Bullet> tempBullets = new LinkedList<>(); for(Bullet bullet:bullets) { if (bullet.outOfBound()) { tempBullets.add(bullet); } } for (Bullet bullet:tempBullets) { bullets.remove(bullet); } //敌机飞出画面或者生命值为0，判定死亡，从列表中删除 LinkedList<EnemyPlane> tempEnemyPlaneList = new LinkedList<>(); for(EnemyPlane enemyPlane:enemyPlanes) { if (enemyPlane.outOfBound()) { this.score = enemyPlane.getPoint()/2 + this.score; tempEnemyPlaneList.add(enemyPlane); } else if (enemyPlane.getHealth()==0) { this.score = enemyPlane.getPoint() + this.score; tempEnemyPlaneList.add(enemyPlane); } } for(EnemyPlane enemyPlane:tempEnemyPlaneList) { enemyPlanes.remove(enemyPlane); } } public void checkGameOver () { for (EnemyPlane e:enemyPlanes) { if (heroPlane.collision(e)) { e.setHealth(0); heroPlane.substractLife(); heroPlane.setBenefit(0); heroPlane.setInvincible(20); break; } } if (heroPlane.getLife()==0) { state = STATE.GAME_OVER; } } public void shooting() { for(EnemyPlane e:enemyPlanes) { for (Bullet b:bullets) { e.shootBy(b); } } } public void stepAction() { heroPlane.step(); for (EnemyPlane e:enemyPlanes) { e.step(); } for (Bullet b:bullets) { b.step(); } } public void runGame () { timer.schedule(new TimerTask() { @Override public void run() { if (state == STATE.RUNNING) { // 运行状态 createNewEnemy(); shootBullet(); stepAction(); // 走一步 shooting(); // 子弹打飞行物 deleteDeadFlyingObj(); // 删除越界飞行物及子弹 checkGameOver(); // 检查游戏结束 } repaint(); // 重绘，调用paint()方法 } }, 10, 10); } }