Java实现Flappy Bird游戏源码

本文实例为大家分享了java实现flappy bird游戏的具体代码，供大家参考，具体内容如下

1.首先在mainactivity.xml中放置一个view，id为viewdraw

2.开始编程，程序中自定义一个view类的子类，与viewdraw关联，程序除了放置如一个view控件，没有其他控件，程序上面的所有图片都是通过控制canvas画图实现

3.游戏是依据flappybird的游戏过程重新写的算法，功能与原版游戏相似，可能有些地方不足，完全是学习练习编程而已，做的不好见谅

4.原图片大小为384*512，在展示图片时将图片进行了放大，尽可能满足800*1280的全屏展示，如果你使用三星note10，这个程序可以直接复制粘贴运行，否则，可能会遇到图片画错位置的问题，请适当调整

5.程序游戏中使用到的图片最后，只需要按照图片上的名字命名该图片，并导入到程序的图片资源中，就能顺利运行本程序

代码：

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;
 }
 }
}

图片：

background_day.png

background_ground.png

background_night.png

bird_down.png

bird_middle.png

bird_up.png

intro_day_down.png

intro_day_middle.png

intro_day_up.png

intro_night_down.png

intro_night_middle.png

intro_night_up.png

medals_bronze.png

medals_gold.png

medals_silver.png

medals_whitegold.png

 

other_gameover.png

 

other_list.png

other_load.png

other_record.png

 other_restart.png

 other_start.png

pillar_downside.png

pillar_upside.png

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。