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：
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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服务器之家。
原文链接：https://blog.csdn.net/sqh4587/article/details/23458877
