(游戏)打飞机01:前言 传送门
(游戏)打飞机02:游戏背景滚动 传送门
(游戏)打飞机03:控制玩家飞机 传送门
(游戏)打飞机04:绘画敌机、添加子弹 传送门
(游戏)打飞机05:处理子弹,击中敌机,添加计分板 传送门
(游戏)打飞机06:后续 传送门
绘画敌机、添加子弹效果
package com.example.administrator.myapplication;import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Rect; import android.view.MotionEvent; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.WindowManager;import java.util.ArrayList; import java.util.List; import java.util.Random;/*** Created by Administrator on 2018/8/9.*/public class dafeijiGameView extends SurfaceView implementsSurfaceHolder.Callback,Runnable,android.view.View.OnTouchListener{private Bitmap my;//自己private Bitmap baozha;//爆炸private Bitmap bg;//背景private Bitmap diren;//敌人private Bitmap zidan;//子弹private Bitmap erjihuancun;//二级缓存private WindowManager windowManager;//获得界面长宽高private int display_w; //界面的宽private int display_h; //界面的高private ArrayList<GameImage> gameImage = new ArrayList();private ArrayList<Zidan> zidans = new ArrayList<Zidan>();public dafeijiGameView(Context context) {super(context);getHolder().addCallback(this);//事件注册this.setOnTouchListener(this);}private void init(){//加载照片my= BitmapFactory.decodeResource(getResources(),R.drawable.my);baozha= BitmapFactory.decodeResource(getResources(),R.drawable.baozha);bg= BitmapFactory.decodeResource(getResources(),R.drawable.bg);diren= BitmapFactory.decodeResource(getResources(),R.drawable.diren);zidan= BitmapFactory.decodeResource(getResources(),R.drawable.zidan);erjihuancun=Bitmap.createBitmap(display_w,display_h, Bitmap.Config.ARGB_8888);gameImage.add(new BeijingImage(bg)); //先加入背景照片gameImage.add(new FeijiImage(my));gameImage.add(new DijiImage(diren));}FeijiImage selectfeiji;@Overridepublic boolean onTouch(View v, MotionEvent event) {//手接近屏幕产生的事件if(event.getAction()==MotionEvent.ACTION_DOWN){for(GameImage game: gameImage){if(game instanceof FeijiImage){FeijiImage feiji = (FeijiImage)game;//判断条件为真时选中飞机if(feiji.getX()<event.getX()&&feiji.getY()<event.getY()&&feiji.getX()+feiji.getWidth()>event.getX() &&feiji.getY()+feiji.getHeigth()>event.getY()){selectfeiji=feiji;}else{selectfeiji=null;}break;}}}else if(event.getAction()==MotionEvent.ACTION_MOVE){//移动鼠标if( selectfeiji!=null){selectfeiji.setX((int)event.getX()-selectfeiji.getWidth()/2);selectfeiji.setY((int)event.getY()-selectfeiji.getHeigth()/2);}}else if(event.getAction()==MotionEvent.ACTION_UP){//松开鼠标selectfeiji=null;}return true;}private interface GameImage{public Bitmap getBitmap();public int getX();public int getY();}private class Zidan implements GameImage{Bitmap zidan;private FeijiImage feiji;private int x;private int y;public Zidan(FeijiImage feiji,Bitmap zidan){this.feiji=feiji;this.zidan=zidan;x=(feiji.getX()+feiji.getWidth()/2)-25;//居中位置y=feiji.getY()-zidan.getHeight();}public Bitmap getBitmap() {y-=19;if(y<=-10){zidans.remove(this);}return zidan;}@Overridepublic int getX() {return x;}@Overridepublic int getY() {return y;}}private class DijiImage implements GameImage{private Bitmap diren = null;private List<Bitmap> bitmaps = new ArrayList<Bitmap>();private int x;private int y;public DijiImage(Bitmap diren){this.diren=diren;bitmaps.add(Bitmap.createBitmap(diren,0,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*1,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*2,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*3,0,diren.getWidth()/4,diren.getHeight()));y=-diren.getHeight();Random ran = new Random();x=ran.nextInt(display_w-(diren.getWidth()/4));}private int index=0;private int num =0;@Overridepublic Bitmap getBitmap() {Bitmap bitmap = bitmaps.get(index);//控制切换四个飞机的频率if(num == 7){index++;if(index == bitmaps.size()){index=0;}num=0;}y+=3;num++;if(y>display_h){gameImage.remove(this);}return bitmap;}@Overridepublic int getX() {return x;}@Overridepublic int getY() {return y;}}private class FeijiImage implements GameImage{private Bitmap my;private int x;private int y;private int width;private int heigth;private int getWidth(){return width;}private int getHeigth(){return heigth;}private List<Bitmap> bitmaps = new ArrayList<Bitmap>();private FeijiImage(Bitmap my){this.my=my;bitmaps.add(Bitmap.createBitmap(my,0,0,my.getWidth()/4,my.getHeight()));bitmaps.add(Bitmap.createBitmap(my,(my.getWidth()/4),0,my.getWidth()/4,my.getHeight()));bitmaps.add(Bitmap.createBitmap(my,(my.getWidth()/4)*2,0,my.getWidth()/4,my.getHeight()));bitmaps.add(Bitmap.createBitmap(my,(my.getWidth()/4)*3,0,my.getWidth()/4,my.getHeight()));//得到战机的高和宽width=my.getWidth()/4;heigth=my.getHeight();x=(display_w - my.getWidth()/4)/2;y=display_h-my.getHeight()-30;}private int index=0;private int num =0;@Overridepublic Bitmap getBitmap() {Bitmap bitmap = bitmaps.get(index);//控制切换四个飞机的频率if(num == 7){index++;if(index == bitmaps.size()){index=0;}num=0;}num++;return bitmap;}@Overridepublic int getX() {return x;}@Overridepublic int getY() {return y;}public void setY(int y){this.y=y;}public void setX(int x){this.x=x;}}//负责背景照片的处理private class BeijingImage implements GameImage{private Bitmap bg;private BeijingImage(Bitmap bg){this.bg=bg;newBitmap = Bitmap.createBitmap(display_w,display_h, Bitmap.Config.ARGB_8888);}private Bitmap newBitmap = null;private int height = 0;public Bitmap getBitmap(){Paint p = new Paint();Canvas canvas = new Canvas(newBitmap);canvas.drawBitmap(bg,new Rect(0,0,bg.getWidth(),bg.getHeight()),new Rect(0,height,display_w,display_h+height),p);canvas.drawBitmap(bg,new Rect(0,0,bg.getWidth(),bg.getHeight()),new Rect(0,-display_h+height,display_w,height),p);height++;if(height==display_h){height=0;}return newBitmap;}public int getX(){return 0;}public int getY(){return 0;}}private boolean state = false;private SurfaceHolder holder;//绘画中心public void run() {Paint p1 = new Paint();int diren_num=0;// int zidan_num=0;try{while(state){if(selectfeiji!=null){if(zidan_num==10){zidans.add(new Zidan(selectfeiji,zidan));zidan_num=0;}zidan_num++;}Canvas newCanvas = new Canvas(erjihuancun);for(GameImage image:(List<GameImage>)gameImage.clone()){newCanvas.drawBitmap(image.getBitmap(),image.getX(),image.getY(),p1);}for(GameImage image:(List<GameImage>)zidans.clone()){newCanvas.drawBitmap(image.getBitmap(),image.getX(),image.getY(),p1);}if(diren_num==150){diren_num=0;gameImage.add(new DijiImage(diren));}diren_num++;Canvas canvas = holder.lockCanvas();canvas.drawBitmap(erjihuancun,0,0,p1);holder.unlockCanvasAndPost(canvas);Thread.sleep(10);}}catch(Exception e){}}@Overridepublic void surfaceCreated(SurfaceHolder holder) {}@Overridepublic void surfaceDestroyed(SurfaceHolder holder) {state = false;}@Overridepublic void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {//得到屏幕的宽和高display_w=width;display_h=height;init();this.holder=holder;state = true;new Thread(this).start();}}
package com.example.administrator.myapplication;import android.support.v7.app.AppCompatActivity; import android.os.Bundle;public class MainActivity extends AppCompatActivity{@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);//去掉标题// requestWindowFeature(Window.FEATURE_NO_TITLE);dafeijiGameView view = new dafeijiGameView(this);setContentView(view);}}
实现过程
绘制敌机
private class DijiImage implements GameImage{private Bitmap diren = null;private List<Bitmap> bitmaps = new ArrayList<Bitmap>();private int x;private int y;public DijiImage(Bitmap diren){this.diren=diren;bitmaps.add(Bitmap.createBitmap(diren,0,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*1,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*2,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*3,0,diren.getWidth()/4,diren.getHeight()));y=-diren.getHeight();Random ran = new Random();x=ran.nextInt(display_w-(diren.getWidth()/4));}private int index=0;private int num =0;@Overridepublic Bitmap getBitmap() {Bitmap bitmap = bitmaps.get(index);//控制切换四个飞机的频率if(num == 7){index++;if(index == bitmaps.size()){index=0;}num=0;}y+=3;num++;if(y>display_h){gameImage.remove(this);}return bitmap;}@Overridepublic int getX() {return x;}@Overridepublic int getY() {return y;}}
初始化游戏时候加载敌机类
private void init(){//加载照片my= BitmapFactory.decodeResource(getResources(),R.drawable.my);baozha= BitmapFactory.decodeResource(getResources(),R.drawable.baozha);bg= BitmapFactory.decodeResource(getResources(),R.drawable.bg);diren= BitmapFactory.decodeResource(getResources(),R.drawable.diren);zidan= BitmapFactory.decodeResource(getResources(),R.drawable.zidan);erjihuancun=Bitmap.createBitmap(display_w,display_h, Bitmap.Config.ARGB_8888);gameImage.add(new BeijingImage(bg)); //先加入背景照片gameImage.add(new FeijiImage(my));gameImage.add(new DijiImage(diren));}
绘制敌机飞行动画
private List<Bitmap> bitmaps = new ArrayList<Bitmap>();
将四张敌机加入链表
bitmaps.add(Bitmap.createBitmap(diren,0,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*1,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*2,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*3,0,diren.getWidth()/4,diren.getHeight()));
public static Bitmap createBitmap(Bitmap source, int x, int y, int width, int height, Matrix m, boolean filter)
从原始位图剪切图像,这是一种高级的方式。可以用Matrix(矩阵)来实现旋转等高级方式截图
参数说明: 传送门
Bitmap source:要从中截图的原始位图
int x:起始x坐标
int y:起始y坐标
int width:要截的图的宽度
int height:要截的图的宽度
Bitmap.Config config:一个枚举类型的配置,可以定义截到的新位图的质量
Bitmap source:要从中截图的原始位图
int x:起始x坐标
int y:起始y坐标
int width:要截的图的宽度
int height:要截的图的宽度
Bitmap.Config config:一个枚举类型的配置,可以定义截到的新位图的质量
返回值:返回一个剪切好的Bitmap
绘制飞机飞行动画(不断切换四张图片,看起来像飞机飞)
private int index=0;private int num =0;@Overridepublic Bitmap getBitmap() {Bitmap bitmap = bitmaps.get(index);//控制切换四个飞机的频率if(num == 7){index++;if(index == bitmaps.size()){index=0;}num=0;}//y+=3控制敌机下降速度y+=3;
随机位置生成敌机
y=-diren.getHeight();Random ran = new Random();x=ran.nextInt(display_w-(diren.getWidth()/4));
在游戏绘画中心中添加敌机出现
//绘画中心public void run() {Paint p1 = new Paint();int diren_num=0;// try{while(true){Canvas newCanvas = new Canvas(erjihuancun);for(GameImage image:(List<GameImage>)gameImage.clone()){newCanvas.drawBitmap(image.getBitmap(),image.getX(),image.getY(),p1);}if(diren_num==150){diren_num=0;gameImage.add(new DijiImage(diren));}diren_num++;Canvas canvas = holder.lockCanvas();canvas.drawBitmap(erjihuancun,0,0,p1);holder.unlockCanvasAndPost(canvas);Thread.sleep(10);}}catch(Exception e){}}
敌机出现频率
if(diren_num==150){diren_num=0;gameImage.add(new DijiImage(diren));}diren_num++;
package com.example.administrator.myapplication;import android.content.Context; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.graphics.Canvas; import android.graphics.Paint; import android.graphics.Rect; import android.view.MotionEvent; import android.view.SurfaceHolder; import android.view.SurfaceView; import android.view.View; import android.view.WindowManager;import java.util.ArrayList; import java.util.List; import java.util.Random;/*** Created by Administrator on 2018/8/9.*/public class dafeijiGameView extends SurfaceView implementsSurfaceHolder.Callback,Runnable,android.view.View.OnTouchListener{private Bitmap my;//自己private Bitmap baozha;//爆炸private Bitmap bg;//背景private Bitmap diren;//敌人private Bitmap zidan;//子弹private Bitmap erjihuancun;//二级缓存private WindowManager windowManager;//获得界面长宽高private int display_w; //界面的宽private int display_h; //界面的高private ArrayList<GameImage> gameImage = new ArrayList();public dafeijiGameView(Context context) {super(context);getHolder().addCallback(this);//事件注册this.setOnTouchListener(this);}private void init(){//加载照片my= BitmapFactory.decodeResource(getResources(),R.drawable.my);baozha= BitmapFactory.decodeResource(getResources(),R.drawable.baozha);bg= BitmapFactory.decodeResource(getResources(),R.drawable.bg);diren= BitmapFactory.decodeResource(getResources(),R.drawable.diren);zidan= BitmapFactory.decodeResource(getResources(),R.drawable.zidan);erjihuancun=Bitmap.createBitmap(display_w,display_h, Bitmap.Config.ARGB_8888);gameImage.add(new BeijingImage(bg)); //先加入背景照片gameImage.add(new FeijiImage(my));gameImage.add(new DijiImage(diren));}FeijiImage selectfeiji;@Overridepublic boolean onTouch(View v, MotionEvent event) {//手接近屏幕产生的事件if(event.getAction()==MotionEvent.ACTION_DOWN){for(GameImage game: gameImage){if(game instanceof FeijiImage){FeijiImage feiji = (FeijiImage)game;//判断条件为真时选中飞机if(feiji.getX()<event.getX()&&feiji.getY()<event.getY()&&feiji.getX()+feiji.getWidth()>event.getX() &&feiji.getY()+feiji.getHeigth()>event.getY()){selectfeiji=feiji;}else{selectfeiji=null;}break;}}}else if(event.getAction()==MotionEvent.ACTION_MOVE){//移动鼠标if( selectfeiji!=null){selectfeiji.setX((int)event.getX()-selectfeiji.getWidth()/2);selectfeiji.setY((int)event.getY()-selectfeiji.getHeigth()/2);}}else if(event.getAction()==MotionEvent.ACTION_UP){//松开鼠标selectfeiji=null;}return true;}private interface GameImage{public Bitmap getBitmap();public int getX();public int getY();}private class DijiImage implements GameImage{private Bitmap diren = null;private List<Bitmap> bitmaps = new ArrayList<Bitmap>();private int x;private int y;public DijiImage(Bitmap diren){this.diren=diren;bitmaps.add(Bitmap.createBitmap(diren,0,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*1,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*2,0,diren.getWidth()/4,diren.getHeight()));bitmaps.add(Bitmap.createBitmap(diren,(diren.getWidth()/4)*3,0,diren.getWidth()/4,diren.getHeight()));y=-diren.getHeight();Random ran = new Random();x=ran.nextInt(display_w-(diren.getWidth()/4));}private int index=0;private int num =0;@Overridepublic Bitmap getBitmap() {Bitmap bitmap = bitmaps.get(index);//控制切换四个飞机的频率if(num == 7){index++;if(index == bitmaps.size()){index=0;}num=0;}y+=3;num++;if(y>display_h){gameImage.remove(this);}return bitmap;}@Overridepublic int getX() {return x;}@Overridepublic int getY() {return y;}}private class FeijiImage implements GameImage{private Bitmap my;private int x;private int y;private int width;private int heigth;private int getWidth(){return width;}private int getHeigth(){return heigth;}private List<Bitmap> bitmaps = new ArrayList<Bitmap>();private FeijiImage(Bitmap my){this.my=my;bitmaps.add(Bitmap.createBitmap(my,0,0,my.getWidth()/4,my.getHeight()));bitmaps.add(Bitmap.createBitmap(my,(my.getWidth()/4),0,my.getWidth()/4,my.getHeight()));bitmaps.add(Bitmap.createBitmap(my,(my.getWidth()/4)*2,0,my.getWidth()/4,my.getHeight()));bitmaps.add(Bitmap.createBitmap(my,(my.getWidth()/4)*3,0,my.getWidth()/4,my.getHeight()));//得到战机的高和宽width=my.getWidth()/4;heigth=my.getHeight();x=(display_w - my.getWidth()/4)/2;y=display_h-my.getHeight()-30;}private int index=0;private int num =0;@Overridepublic Bitmap getBitmap() {Bitmap bitmap = bitmaps.get(index);//控制切换四个飞机的频率if(num == 7){index++;if(index == bitmaps.size()){index=0;}num=0;}num++;return bitmap;}@Overridepublic int getX() {return x;}@Overridepublic int getY() {return y;}public void setY(int y){this.y=y;}public void setX(int x){this.x=x;}}//负责背景照片的处理private class BeijingImage implements GameImage{private Bitmap bg;private BeijingImage(Bitmap bg){this.bg=bg;newBitmap = Bitmap.createBitmap(display_w,display_h, Bitmap.Config.ARGB_8888);}private Bitmap newBitmap = null;private int height = 0;public Bitmap getBitmap(){Paint p = new Paint();Canvas canvas = new Canvas(newBitmap);canvas.drawBitmap(bg,new Rect(0,0,bg.getWidth(),bg.getHeight()),new Rect(0,height,display_w,display_h+height),p);canvas.drawBitmap(bg,new Rect(0,0,bg.getWidth(),bg.getHeight()),new Rect(0,-display_h+height,display_w,height),p);height++;if(height==display_h){height=0;}return newBitmap;}public int getX(){return 0;}public int getY(){return 0;}}private boolean state = false;private SurfaceHolder holder;//绘画中心public void run() {Paint p1 = new Paint();int diren_num=0;// try{while(true){Canvas newCanvas = new Canvas(erjihuancun);for(GameImage image:(List<GameImage>)gameImage.clone()){newCanvas.drawBitmap(image.getBitmap(),image.getX(),image.getY(),p1);}if(diren_num==150){diren_num=0;gameImage.add(new DijiImage(diren));}diren_num++;Canvas canvas = holder.lockCanvas();canvas.drawBitmap(erjihuancun,0,0,p1);holder.unlockCanvasAndPost(canvas);Thread.sleep(10);}}catch(Exception e){}}@Overridepublic void surfaceCreated(SurfaceHolder holder) {}@Overridepublic void surfaceDestroyed(SurfaceHolder holder) {state = false;}@Overridepublic void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {//得到屏幕的宽和高display_w=width;display_h=height;init();this.holder=holder;state = true;new Thread(this).start();}}
游戏中添加子弹
private class Zidan implements GameImage{Bitmap zidan;private FeijiImage feiji;private int x;private int y;public Zidan(FeijiImage feiji,Bitmap zidan){this.feiji=feiji;this.zidan=zidan;x=(feiji.getX()+feiji.getWidth()/2)-25;//居中位置y=feiji.getY()-zidan.getHeight();}public Bitmap getBitmap() {y-=19;if(y<=-10){zidans.remove(this);}return zidan;}@Overridepublic int getX() {return x;}@Overridepublic int getY() {return y;}}
判断子弹出现飞机位置
public Zidan(FeijiImage feiji,Bitmap zidan){this.feiji=feiji;this.zidan=zidan;x=(feiji.getX()+feiji.getWidth()/2)-25;//居中位置y=feiji.getY()-zidan.getHeight();}
(-25是自己微调)
子弹超出边界的时候释放子弹内存,减少手机开销
public Bitmap getBitmap() {y-=19;if(y<=-10){zidans.remove(this);}return zidan;}
不断的出现新的子弹
if(selectfeiji!=null){if(zidan_num==10){zidans.add(new Zidan(selectfeiji,zidan));zidan_num=0;}zidan_num++;}
便利所有的子弹
for(GameImage image:(List<GameImage>)zidans.clone()){newCanvas.drawBitmap(image.getBitmap(),image.getX(),image.getY(),p1);}