Android飞机大战

简述

    android游戏继承surfaceView开发，实现Callback接口，Callback接口作用是回调。

    实现Callback接口后，要实现三个抽象方法：surfaceCreated(),surfaceDestroyed(),surfaceChanged()

    然后再surfaceCreated()方法里面实例化对象,surfaceDestroyed()里面结束。

    创建一个渲染线程，RenderThread，获取画笔，在surfaceView里面去绘图。

    飞机与子弹对象继承一个我自己定义的Sprite类，便于在surfaceView里面绘图。

    MainActivity里面的setContentView(参数)，参数里面不用XML页面，换成自己定义的surfaceView。

    监听触屏事件的方法onTouchEvent(MotionEvent event)把获得的触屏事件传递给mysurfaceView的dealTouchEvent()方法。

    

部分核心代码

    

MainActivity:

public class MainActivity extends Activity {private MySurfaceView mySurfaceView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        mySurfaceView = new MySurfaceView(this);        setContentView(mySurfaceView);    }    public boolean onTouchEvent(MotionEvent event){    mySurfaceView.dealTouchEvent(event);    return super.onTouchEvent(event);    }}

surfaceView

   

public class MySurfaceView extends SurfaceView implements Callback

surfaceCreated()方法

public void surfaceCreated(SurfaceHolder holder) {Bitmap img = BitmapFactory.decodeResource(getResources(),R.drawable.mainplane);mainPlane = new MainPlane(img,new Point(330,900));bp = new BossPlane(BitmapFactory.decodeResource(getResources(),R.drawable.boss),new Point());sp = new CopyOnWriteArrayList<SecPlane>();bs = new CopyOnWriteArrayList<Bullet>();isRun = true;renderThread.start();System.out.println("开始");new Thread(){public void run() {while(true){//每秒发射10枚子弹(自动发射)bullet = mainPlane.createBullet(getResources());bs.add(bullet);try {sleep(100);} catch (Exception e) {e.printStackTrace();}}};}.start();new Thread(){public void run() {try {sleep(5000);} catch (Exception e1) {e1.printStackTrace();}while(true){//自动出现敌机SecPlane secPlane = new SecPlane(BitmapFactory.decodeResource(getResources(), R.drawable.secplane),new Point((int)(Math.random()*600),0));sp.add(secPlane);try{sleep(300);}catch(Exception e){e.printStackTrace();}}};}.start();}

RenderThread渲染线程

    

class RenderThread extends Thread{Canvas lockCanvas = null;private Paint paint = new Paint();@Overridepublic void run() {System.out.println(holder);while(isRun){try{lockCanvas = holder.lockCanvas();lockCanvas.drawRect(0,0,getWidth(),getHeight(),paint);mainPlane.drawMySelf(lockCanvas);bp.drawMySelf(lockCanvas);

MainPlane----->玩家控制的飞机:

   

public class MainPlane extends Sprite{public int speed = 10;public MainPlane(Bitmap img, Point currentPoint) {super(img, currentPoint);}public Bullet createBullet(Resources res){Point point = new Point(currentPoint.x + 66,currentPoint.y);Bullet bullet = new Bullet(BitmapFactory.decodeResource(res, R.drawable.bullet),point);return bullet;}public void move(int x,int y){currentPoint.x = x - 84;currentPoint.y = y - 216;}}

Sprite类

    

public class Sprite {protected Bitmap img;protected Point currentPoint;public Sprite(Bitmap img,Point currentPoint){this.img = img;if(currentPoint == null)currentPoint = new Point(0,0);this.currentPoint = currentPoint;}public void drawMySelf(Canvas canvas){if(img != null && canvas != null){canvas.drawBitmap(img,currentPoint.x,currentPoint.y,null);}}public Point getCurrentPoint(){return currentPoint;}}

上述是部分核心代码

    

图示游戏

    

虚拟机上截gif图很卡，手机上运行比市场上的app还流畅