Java实现Flappy Bird游戏源码

public class MainActivity extends Activity{ static final int IMG_WIDTH=384; //图片的长宽 static final int IMG_HEIGHT=512; private View viewDraw;  @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); viewDraw = (View) findViewById(R.id.viewDraw); MyView v = new MyView(viewDraw.getContext(), null);  setContentView(v); }  @Override public boolean onKeyDown(int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_BACK) { finish(); return true; } return super.onKeyDown(keyCode, event); } //定义水管障碍物类 class Obstacle { int x; int h; public Obstacle() { x=0; h=0; } } //自定义View子类，完成动画的刷新 class MyView extends View implements Runnable { static final int SPEED=2; // 图形当前坐标 private int x = 20, y = 20,a,b,c,birdHeight,time,point,v,record; Obstacle pillar[]= new Obstacle[3];  boolean bInit,bCourse,bGame,bGameOver;  RefreshHandler mRedrawHandler;  Bitmap birdUpBitmap,birdDownBitmap,birdMiddleBitmap,groundBitmap,otherStartBitmap; Bitmap courseUpBitmap,courseDownBitmap,courseMiddleBitmap; Bitmap pillarUpBitmap,pillarDownBitmap,gameOverBitmap,recordBitmap,playAgainBitmap,listBitmap,goldBitmap,silverBitmap,bronzeBitmap,whiteGoldBitmap,gameBackgroundBitmap;  // 构造方法 public MyView(Context context, AttributeSet attrs) { super(context, attrs); // TODO Auto-generated constructor stub // 获得焦点 setFocusable(true); bInit=false; bCourse=false; bGame=false; bGameOver=false; //障碍物初始化  pillar[0]=new Obstacle(); pillar[1]=new Obstacle(); pillar[2]=new Obstacle(); //载入图片  otherStartBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.other_start); birdUpBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.bird_up); birdDownBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.bird_down); birdMiddleBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.bird_middle); groundBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.background_ground);  pillarDownBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pillar_downside); pillarUpBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.pillar_upside); gameOverBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.other_gameover); recordBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.other_record); playAgainBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.other_restart); listBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.other_list); bronzeBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.medals_bronze); silverBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.medals_silver); goldBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.medals_gold); whiteGoldBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.medals_whitegold); //游戏界面刷新handler  mRedrawHandler = new RefreshHandler();  // 启动线程 new Thread(this).start(); }  @Override public void run() { // TODO Auto-generated method stub  while (true) { // 通过发送消息更新界面 Message m = new Message(); m.what = 0x101; mRedrawHandler.sendMessage(m); try { Thread.sleep(20); } catch (InterruptedException e) { // TODO Auto-generated catch block e.printStackTrace(); } } }  //游戏画面更新 void gameDraw(Canvas canvas) { if(!bInit) { Bitmap bm; bm = BitmapFactory.decodeResource(getResources(), R.drawable.other_load); canvas.drawBitmap(bm, 0, 0, null);  Paint p1 = new Paint(); p1.setAntiAlias(true); p1.setColor(Color.WHITE); p1.setTextSize(20);//设置字体大小 } else if(bInit) { if(!bCourse) { a-=SPEED; if(a<=0) a=384;  canvas.drawBitmap(otherStartBitmap, 0, 0, null); canvas.drawBitmap(groundBitmap, a, 448, null); canvas.drawBitmap(groundBitmap, a-384, 448, null);  b=a%128; if(b>=0&&b<32) { canvas.drawBitmap(birdMiddleBitmap, 175, 220, null); } if(b>=32&&b<64) { canvas.drawBitmap(birdUpBitmap, 175, 216, null); } if(b>=64&&b<96) { canvas.drawBitmap(birdMiddleBitmap, 175, 220, null); }  if(b>=96&&b<=128) { canvas.drawBitmap(birdDownBitmap, 175, 224, null); } canvas.drawBitmap(groundBitmap, a, 448, null); } else if (bCourse) { if(!bGame) { time += 1;  int temp = time % 64; if (temp >= 0 && temp < 16) canvas.drawBitmap(courseUpBitmap, 0, 0, null); if (temp >= 16 && temp < 32) canvas.drawBitmap(courseMiddleBitmap, 0, 0, null); if (temp >= 32 && temp < 48) canvas.drawBitmap(courseDownBitmap, 0, 0, null); if (temp >= 48 && temp < 64) canvas.drawBitmap(courseMiddleBitmap, 0, 0, null); a-=SPEED; if(a<=0) a=384; canvas.drawBitmap(groundBitmap, a, 448, null); canvas.drawBitmap(groundBitmap, a-384, 448, null);  } else if(bGame) { if(!bGameOver) { time+=1;  /***************计算高度************************/  v+=9.8; if(v>120) v=120; else if(v<-150) v=-150; if(v>=0) birdHeight+=((v*5.0)/77); else if(v<0) birdHeight+=((v*4.5)/77); if(birdHeight<0) birdHeight=0; else if(birdHeight>415) birdHeight=415;  /***************柱子的移动**********************/ for(c=0;c<3;c++) {  pillar[c].x-=SPEED;  if(pillar[c].x<=-70)  pillar[c].x=650; if(pillar[c].x==512) {  pillar[c].h=(new Random()).nextInt(200)+200; }  }  /***************计算分数************************/ for(c=0;c<3;c++) { if(pillar[c].x==100)  point++; }  /****************地面移动***********************/ a-=SPEED;  /****************判断碰撞,+32判断下侧柱子，-170判断上侧柱子***********************/ if(pillar[0].x>=30&&pillar[0].x<=145&&(pillar[0].h<(birdHeight+32)||(pillar[0].h-170)>birdHeight))  bGameOver=true; if(pillar[1].x>=30&&pillar[1].x<=145&&(pillar[1].h<(birdHeight+32)||(pillar[1].h-170)>birdHeight))  bGameOver=true; if(pillar[2].x>=30&&pillar[2].x<=145&&(pillar[2].h<(birdHeight+32)||(pillar[2].h-170)>birdHeight)) bGameOver=true; //是否碰到地面 if(birdHeight>414) bGameOver=true; }   /***************显示图像************************/  //显示背景  canvas.drawBitmap(gameBackgroundBitmap, 0, 0, null);  //显示柱子 for(c=0;c<3;c++) { canvas.drawBitmap(pillarDownBitmap, pillar[c].x, pillar[c].h, null); canvas.drawBitmap(pillarUpBitmap, pillar[c].x, pillar[c].h-420, null); }  if(a<=0) a=384; canvas.drawBitmap(groundBitmap, a, 448, null); canvas.drawBitmap(groundBitmap, a-384, 448, null);   int temp=time%16; if(temp>=0&&temp<4) canvas.drawBitmap(birdMiddleBitmap, 100, birdHeight, null); if(temp>=4&&temp<8) canvas.drawBitmap(birdUpBitmap, 100, birdHeight, null); if(temp>=8&&temp<12) canvas.drawBitmap(birdMiddleBitmap, 100, birdHeight, null); if(temp>=12&&temp<16) canvas.drawBitmap(birdDownBitmap, 100, birdHeight, null);   if(!bGameOver) { /*******************显示分数**********************/ Paint p1 = new Paint(); p1.setAntiAlias(true); p1.setColor(Color.WHITE); p1.setTextSize(20);//设置字体大小 canvas.drawText("score:"+point, 171, 50, p1); canvas.drawText("acc:"+v, 171, 80, p1); canvas.drawText("H:"+birdHeight, 171, 110, p1); } else if(bGameOver) { canvas.drawBitmap(gameOverBitmap, 55, 60, null); canvas.drawBitmap(recordBitmap, 35, 150, null); canvas.drawBitmap(playAgainBitmap, 35, 350, null); canvas.drawBitmap(listBitmap, 200, 350, null);   if(point>=10&&point<20) canvas.drawBitmap(bronzeBitmap, 67, 200, null); if(point>=20&&point<30) canvas.drawBitmap(silverBitmap, 67, 200, null); if(point>=30&&point<40) canvas.drawBitmap(goldBitmap, 67, 200, null); if(point>=40) canvas.drawBitmap(whiteGoldBitmap, 67, 200, null);  Paint p1 = new Paint(); p1.setAntiAlias(true); p1.setColor(Color.WHITE); p1.setTextSize(20);//设置字体大小 canvas.drawText(""+point, 260, 210, p1); //最高纪录 canvas.drawText("1000", 260, 268, p1);  } } } }   // 实例化画笔 Paint p = new Paint(); p.setColor(Color.BLACK); p.setColor(Color.WHITE); canvas.drawText("init: "+bInit+" course: "+bCourse+" game: "+bGame+" over: "+bGameOver, 0, 10, p); }  @Override protected void onDraw(Canvas canvas) { // TODO Auto-generated method stub super.onDraw(canvas); canvas.drawColor(Color.BLACK); //这里的操作是为了在我的平板电脑竖屏尽量全屏显示，原图片很小，我的屏幕分辨率为1280*800，如果不需要对图片进行缩放，可以在只而立只保留gameDraw（）部分   canvas.save(); canvas.translate(16, 80); float scale=(float) 2.0; canvas.scale(scale, scale); canvas.clipRect(0, 0, IMG_WIDTH, IMG_HEIGHT); gameDraw(canvas); canvas.restore(); }  // 更新界面处理器 class RefreshHandler extends Handler { @Override public void handleMessage(Message msg) { // TODO Auto-generated method stub if (msg.what == 0x101) { MyView.this.update(); MyView.this.invalidate(); } super.handleMessage(msg); } }  // 更新坐标 private void update() { } //触屏事件  @Override public boolean onTouchEvent(MotionEvent event) { switch (event.getPointerCount()) { case 1: return onSingleTouchEvent(event); case 2: return onDoubleTouchEvent(event); default: return false; } } //单手指触屏处理 private boolean onSingleTouchEvent(MotionEvent event) { int x = (int) event.getX(); int y = (int) event.getY();  switch (event.getAction()) { case MotionEvent.ACTION_UP: if(!bInit) {  a=-2; bInit=true;  } else if(bInit) { if(!bCourse) { if((new Random()).nextInt(3)==0) { gameBackgroundBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.background_night); courseDownBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.intro_night_down); courseUpBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.intro_night_up); courseMiddleBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.intro_night_middle); } else { gameBackgroundBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.background_day); courseDownBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.intro_day_down); courseUpBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.intro_day_up); courseMiddleBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.intro_day_middle); }  time = 0; a=0;  bCourse=true;  } else if(bCourse) { if(!bGame) { time=0; birdHeight=150; point=0; pillar[0].x=700; pillar[1].x=940; pillar[2].x=1180; a=0; b=0; c=0;  bGame=true; } else if(bGame) { if(!bGameOver) v-=250; else if(bGameOver) { bGameOver=false; bCourse=false; bGame=false; } } } } break; case MotionEvent.ACTION_DOWN:  break; case MotionEvent.ACTION_MOVE:  break; } return true; } //双指触屏处理 private boolean onDoubleTouchEvent(MotionEvent event) { switch (event.getAction() & MotionEvent.ACTION_MASK) { case MotionEvent.ACTION_POINTER_UP:  break; case MotionEvent.ACTION_POINTER_DOWN: {  break; } case MotionEvent.ACTION_MOVE:  postInvalidate(); break; } return true; } }}