飞机大战v4.0

相较于v3.0的改进内容：

1.增加了碰撞检测。

2.加入了音效。

飞行物父类中添加碰撞检测方法

碰撞检测方法：

public boolean isCollsion(FlyObject flyobj){if(flyobj==null){return false;}if(islive&& flyobj.isIslive()) {//检测方法：两个矩形相交时则发生碰撞if (this.x + this.width > flyobj.x && this.x < flyobj.x + flyobj.width && this.y + this.height > flyobj.y && this.y < flyobj.y + flyobj.height){System.out.println("碰撞发生");return true;}}return false;}

则在各个子类中可以使用if来做检测后的内容：在子类中加入if判断语句来使得碰撞后的对象消除

@Overridepublic void draw(Graphics g) {super.draw(g);if(isIslive())g.fillRect(getX(),getY(),getWidth(),getHeight());}@Overridepublic void move() {//我方战机得移动需要使用键盘来控制if(isIslive())super.move();}//上下左右操控public void up(){setSpeddy(-10);}public void down(){setSpeddy(10);}public void left(){setSpeedx(-10);}public void right(){setSpeedx(10);}//玩家开火方法,生成子弹public void fire(ArrayList<FlyObject> bulletList) {if(isIslive()) {MyBullet bullet = new MyBullet(getX() + getWidth() / 10 - 18, getY() - getHeight() / 2, 0, 10, 20, 25, Color.BLUE);bulletList.add(bullet);}}

音乐播放

创建一个音乐播放类，

class MsuPlay{AudioClip ac= null;AudioClip ac1= null;AudioClip ac2= null;public MsuPlay(){playmsu();bgmsu();enmymsu();}public AudioClip getAc(){return ac;}public AudioClip getAc1(){return ac1;}public AudioClip getAc2(){return ac2;}//碰撞爆炸声音public void playmsu(){File file =new File("src/v2/music/雷火-爆炸.wav");try {ac = Applet.newAudioClip(file.toURL());} catch (MalformedURLException e) {throw new RuntimeException(e);}}//我方子弹声音public void bgmsu(){File file =new File("src/v2/music/雷火-子弹1.wav");try {ac1 = Applet.newAudioClip(file.toURL());} catch (MalformedURLException e) {throw new RuntimeException(e);}}//敌方子弹声音public void enmymsu(){File file =new File("src/v2/music/雷火-子弹2.wav");try {ac2 = Applet.newAudioClip(file.toURL());} catch (MalformedURLException e) {throw new RuntimeException(e);}}
}

调用

for (int i = 0; i < bulletList.size(); i++) {FlyObject bullet=bulletList.get(i);for (int j = 0; j < flyList.size(); j++) {FlyObject enemyfight=flyList.get(j);if(bullet.isCollsion(enemyfight)){bullet.setIslive(false);enemyfight.setIslive(false);msuPlay.getAc().play();player.score++;break;}}}//敌方子弹和我方战机for (int i = 0; i <enemybulletList.size() ; i++) {FlyObject enemybullet=enemybulletList.get(i);if(enemybullet.isCollsion(player)){enemybullet.setIslive(false);//调用msuPlay.getAc().play();player.score--;if(player.score<=0){player.setIslive(false);}}}

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