Android_(游戏)打飞机05：处理子弹，击中敌机，添加计分板
(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
处理子弹，击中敌机，添加计分板效果
package com.example.administrator.myapplication; import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
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 implements
SurfaceHolder.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,baozha)); } FeijiImage selectfeiji;
@Override
public 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;
} @Override
public int getX() {
return x;
} @Override
public int getY() {
return y;
}
} private class DijiImage implements GameImage{ private Bitmap diren = null; private List<Bitmap> bitmaps = new ArrayList<Bitmap>();
private List<Bitmap> baozhas = new ArrayList<Bitmap>();
private int x;
private int y;
private int width;
private int height; public DijiImage(Bitmap diren,Bitmap baozha){
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())); baozhas.add(Bitmap.createBitmap(baozha,0,0,baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*1,0,baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*2,0,baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*3,0,baozha.getWidth()/4,baozha.getHeight()/2)); baozhas.add(Bitmap.createBitmap(baozha,0,baozha.getHeight()/2,
baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*1,baozha.getHeight()/2,
baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*2,baozha.getHeight()/2,
baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*3,baozha.getHeight()/2,
baozha.getWidth()/4,baozha.getHeight()/2)); width=diren.getWidth()/4;
height=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;
@Override
public Bitmap getBitmap() {
Bitmap bitmap = bitmaps.get(index);
//控制切换四个飞机的频率
if(num == 7){
index++;
//当爆炸动画运行一次时候删除爆炸效果
if(index==8 &&state){
gameImage.remove(this);
} if(index == bitmaps.size()){
index=0;
}
num=0;
}
y+=dijiyidong;
num++; if(y>display_h){
gameImage.remove(this);
} return bitmap;
} //判断敌机是否被击中
private boolean state=false;
//受到攻击
public void shoudaogongji(ArrayList<Zidan> zidans){ if(!state){
for(GameImage zidan:(List<GameImage>)zidans.clone()){ if(zidan.getX()>x&&zidan.getY()>y
&&zidan.getX()<x+width
&&zidan.getY()<y+height){
//子弹击中敌机了
zidans.remove(zidan);
state=true;
bitmaps=baozhas;
fenshu+=10;
break;
}
}
}
} @Override
public int getX() {
return x;
} @Override
public 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;
@Override
public 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;
} @Override
public int getX() {
return x;
} @Override
public 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;
private long fenshu=0;
private int guanka=1; private int chudishu=50; //出敌机的数字
private int dijiyidong=5; //敌机的移动
private int xiayiguan=50; //下一关分数 private int[][] sj={
{1,50,50,4},
{2,100,45,4},
{3,150,40,5},
{4,200,35,5},
{5,300,30,6},
{6,400,30,6},
{7,500,25,7},
{8,650,25,7},
{9,900,20,8},
{10,1200,20,9}}; private boolean stopState=false;
public void stop(){
stopState=true;
} public void start(){
stopState=false;
thread.interrupt(); //叫醒线程
} //绘画中心
public void run() {
Paint p1 = new Paint();
int diren_num=0;//
int zidan_num=0;
//绘画分数的笔
Paint p2=new Paint();
p2.setColor(Color.WHITE);
p2.setTextSize(30);
p2.setDither(true);
p2.setAntiAlias(true); try{
while(state){
while(stopState){
try{
Thread.sleep(1000000);
}catch(Exception e){
}
}
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()){
if(image instanceof DijiImage){
//把子弹告诉敌机
((DijiImage)image).shoudaogongji(zidans);
}
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);
} //分数
newCanvas.drawText("分数："+fenshu,0,30,p2);
newCanvas.drawText("关卡："+guanka,0,60,p2);
newCanvas.drawText("下一关："+xiayiguan,0,90,p2); //升级关卡
if(sj[guanka-1][1]<=fenshu){ chudishu=sj[guanka][2]; //出敌机的数字
dijiyidong=sj[guanka][3];
fenshu=sj[guanka-1][1]-fenshu;
xiayiguan=sj[guanka][1];
guanka=sj[guanka][0];
} if(diren_num==150){
diren_num=0;
gameImage.add(new DijiImage(diren,baozha));
}
diren_num++;
Canvas canvas = holder.lockCanvas();
canvas.drawBitmap(erjihuancun,0,0,p1);
holder.unlockCanvasAndPost(canvas);
Thread.sleep(10);
}
}catch(Exception e){
}
} @Override
public void surfaceCreated(SurfaceHolder holder) {
} @Override
public void surfaceDestroyed(SurfaceHolder holder) {
state = false;
} @Override
public 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;
thread=new Thread(this);
thread.start();
} Thread thread=null;
}
dafeijiGameView.java
package com.example.administrator.myapplication; import android.content.DialogInterface;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.KeyEvent; public class MainActivity extends AppCompatActivity implements DialogInterface.OnClickListener{ dafeijiGameView view = null;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//去掉标题
// requestWindowFeature(Window.FEATURE_NO_TITLE);
dafeijiGameView view = new dafeijiGameView(this);
view = new dafeijiGameView(this);
setContentView(view);
} @Override
public boolean onKeyDown(int keyCode, KeyEvent event) { if(keyCode==KeyEvent.KEYCODE_BACK){
view.stop(); AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.setTitle("确定是否退出");
alert.setNeutralButton("退出",this);
alert.setNegativeButton("继续",this);
alert.create().show(); return false;
} return super.onKeyDown(keyCode, event);
} @Override
public void onClick(DialogInterface dialog, int which) {
if(which==-2){
view.start();;
}else{
android.os.Process.killProcess(android.os.Process.myPid());
}
}
}
MainActivity.java
实现过程
处理子弹
当子弹击中敌机时，移除当前子弹
把子弹告诉敌机
for(GameImage image:(List<GameImage>)gameImage.clone()){
if(image instanceof DijiImage){
((DijiImage)image).shoudaogongji(zidans);
}
newCanvas.drawBitmap(image.getBitmap(),image.getX(),image.getY(),p1);
}
当子弹击中敌机时，移除当前子弹
在制作过程中发现判断子弹击中敌机时，如果不移除子弹。会在子弹进入敌机身体的时候，继续判断子弹击中敌机(造成一颗子弹击中三次敌机)
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;
}
}
public void shoudaogongji(ArrayList<Zidan> zidans){
for(GameImage zidan:(List<GameImage>)zidans.clone()){
if(zidan.getX()>x&&zidan.getY()>y
&&zidan.getX()<x+width
&&zidan.getY()<y+height){
//子弹击中敌机了
zidans.remove(zidan);
break;
}
}
}
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 implements
SurfaceHolder.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;
@Override
public 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;
} @Override
public int getX() {
return x;
} @Override
public 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;
private int width;
private int height; 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())); width=diren.getWidth()/4;
height=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;
@Override
public 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;
} //受到攻击
public void shoudaogongji(ArrayList<Zidan> zidans){ for(GameImage zidan:(List<GameImage>)zidans.clone()){ if(zidan.getX()>x&&zidan.getY()>y
&&zidan.getX()<x+width
&&zidan.getY()<y+height){
//子弹击中敌机了
zidans.remove(zidan);
break;
} } } @Override
public int getX() {
return x;
} @Override
public 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;
@Override
public 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;
} @Override
public int getX() {
return x;
} @Override
public 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()){
if(image instanceof DijiImage){
//把子弹告诉敌机
((DijiImage)image).shoudaogongji(zidans);
}
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){
}
} @Override
public void surfaceCreated(SurfaceHolder holder) {
} @Override
public void surfaceDestroyed(SurfaceHolder holder) {
state = false;
} @Override
public 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();
} }
dafeijiGameView.java
package com.example.administrator.myapplication; import android.support.v7.app.AppCompatActivity;
import android.os.Bundle; public class MainActivity extends AppCompatActivity{ @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
//去掉标题
// requestWindowFeature(Window.FEATURE_NO_TITLE);
dafeijiGameView view = new dafeijiGameView(this); setContentView(view);
} }
MainActivity.java
绘制爆炸动画
将爆炸图片分成八分，从左上角第一张爆炸到最后一张
private List<Bitmap> baozhas = new ArrayList<Bitmap>();
将八张图片分别加入链表
baozhas.add(Bitmap.createBitmap(baozha,0,0,baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*1,0,baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*2,0,baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*3,0,baozha.getWidth()/4,baozha.getHeight()/2)); baozhas.add(Bitmap.createBitmap(baozha,0,baozha.getHeight()/2,
baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*1,baozha.getHeight()/2,
baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*2,baozha.getHeight()/2,
baozha.getWidth()/4,baozha.getHeight()/2));
baozhas.add(Bitmap.createBitmap(baozha,(baozha.getWidth()/4)*3,baozha.getHeight()/2,
baozha.getWidth()/4,baozha.getHeight()/2));
前面四张图片都在y轴上方， bitmaps.add(Bitmap.createBitmap())第二个参数分别取爆炸图x轴上的第一张、第二张、第三张、第四张，第三个参数为都为0表示y轴上方的图片
后面四张图片在y轴下方，同理，第二个参数取x轴方向上的第一张、第二张、第三张、第四张，第三个参数为都为baozha.getHeight()/2表示y轴下方的图片
当判断子弹击中敌机时，生成爆炸效果
//判断敌机是否被击中
private boolean state=false;
//受到攻击
public void shoudaogongji(ArrayList<Zidan> zidans){ if(!state){
for(GameImage zidan:(List<GameImage>)zidans.clone()){ if(zidan.getX()>x&&zidan.getY()>y
&&zidan.getX()<x+width
&&zidan.getY()<y+height){
//子弹击中敌机了
zidans.remove(zidan);
state=true;
bitmaps=baozhas;
break;
}
}
}
}
处理到这时发现爆炸效果会一直循环出现，而我们只需要当爆炸效果出现一次后就消失，还需要的对爆炸效果动画进行处理
public Bitmap getBitmap() {
Bitmap bitmap = bitmaps.get(index);
//控制切换四个飞机的频率
if(num == 7){
index++;
//当爆炸动画运行一次时候删除爆炸效果
if(index==8 &&state){
gameImage.remove(this);
}
if(index == bitmaps.size()){
index=0;
}
num=0;
}
y+=dijiyidong;
num++;
if(y>display_h){
gameImage.remove(this);
}
return bitmap;
}
分数和关卡
添加文本
绘画分数的笔
Paint p1 = new Paint();
int diren_num=0;//
int zidan_num=0; Paint p2=new Paint();
p2.setColor(Color.WHITE);
p2.setTextSize(30);
p2.setDither(true);
p2.setAntiAlias(true);
private boolean state = false;
private SurfaceHolder holder;
private long fenshu=0;
private int guanka=1; private int chudishu=50; //出敌机的数字
private int dijiyidong=5; //敌机的移动
private int xiayiguan=50; //下一关分数 private int[][] sj={
{1,50,50,4},
{2,100,45,4},
{3,150,40,5},
{4,200,35,5},
{5,300,30,6},
{6,400,30,6},
{7,500,25,7},
{8,650,25,7},
{9,900,20,8},
{10,1200,20,9}};
判断关卡，当分数达到要求时进行下一关
//分数
newCanvas.drawText("分数："+fenshu,0,30,p2);
newCanvas.drawText("关卡："+guanka,0,60,p2);
newCanvas.drawText("下一关："+xiayiguan,0,90,p2); //升级关卡
if(sj[guanka-1][1]<=fenshu){ chudishu=sj[guanka][2]; //出敌机的数字
dijiyidong=sj[guanka][3];
fenshu=sj[guanka-1][1]-fenshu;
xiayiguan=sj[guanka][1];
guanka=sj[guanka][0];
}
增加敌机速度在 Bitmap getBitmap()中
y+=dijiyidong;
num++;
添加游戏关卡
private int[][] sj={
{1,50,50,4},
{2,100,45,4},
{3,150,40,5},
{4,200,35,5},
{5,300,30,6},
{6,400,30,6},
{7,500,25,7},
{8,650,25,7},
{9,900,20,8},
{10,1200,20,9}};
第一个参数：关卡
第二个参数：达到分数进入下一个关卡
第三个参数：自己飞机向前飞行频率
第四个参数：敌机向下飞行速度
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