Android_(游戏)打飞机01：前言 传送门
Android_(游戏)打飞机02：游戏背景滚动 传送门
Android_(游戏)打飞机03：控制玩家飞机 传送门
控制玩家飞机效果
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;
/**
* 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 List<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));
}
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 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 == 10){
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();
try{
while(true){
Canvas newCanvas = new Canvas(erjihuancun);
for(GameImage image:gameImage){
newCanvas.drawBitmap(image.getBitmap(),image.getX(),image.getY(),p1);
}
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
实现过程
飞机类
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 == 10){
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;
}
}
FeijiImage.class
绘制飞机动画
private List<Bitmap> bitmaps = new ArrayList<Bitmap>();
将四张图片加入链表中
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;
}
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
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)
public Bitmap getBitmap() {
Bitmap bitmap = bitmaps.get(index);
//控制切换四个飞机的频率
if(num == 10){
index++;
if(index == bitmaps.size()){
index=0;
}
num=0;
}
num++;
return bitmap;
}
为了不冲突背景移动和飞机飞行速度，飞机图片切换慢背景图片移动的十倍
在游戏事件中注册飞机跟随自己手指移动事件
public dafeijiGameView(Context context) {
super(context);
getHolder().addCallback(this);
//事件注册
this.setOnTouchListener(this);
}
实现飞机跟随自己手指移动
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;
}
原文地址：https://www.cnblogs.com/1138720556Gary/p/9454360.html
时间： 2024-08-03 23:19:28