Andengine輸入事件

Question

如何將移動事件添加到精靈？ 我真的不知道如何使用輸入事件我已經檢查了這個網站和其他人的噸噸不同的鏈接，沒有人真的幫助過。我需要有人解釋和幫助我這個請。

package com.KDevs.test; 

import java.util.Random; 
import java.util.Vector; 

import org.andengine.engine.camera.Camera; 
import org.andengine.engine.options.EngineOptions; 
import org.andengine.engine.options.ScreenOrientation; 
import org.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy; 
import org.andengine.entity.modifier.IEntityModifier; 
import org.andengine.entity.scene.IOnSceneTouchListener; 
import org.andengine.entity.scene.Scene; 
import org.andengine.entity.scene.background.Background; 
import org.andengine.entity.sprite.Sprite; 
import org.andengine.extension.physics.box2d.PhysicsConnector; 
import org.andengine.extension.physics.box2d.PhysicsFactory; 
import org.andengine.extension.physics.box2d.PhysicsWorld; 
import org.andengine.input.touch.TouchEvent; 
import org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas; 
import org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory; 
import org.andengine.opengl.texture.region.ITextureRegion; 
import org.andengine.ui.activity.BaseGameActivity; 

import android.hardware.SensorManager; 
import android.util.Log; 
import android.view.MotionEvent; 

import com.badlogic.gdx.math.Vector2; 
import com.badlogic.gdx.physics.box2d.Body; 
import com.badlogic.gdx.physics.box2d.BodyDef.BodyType; 
import com.badlogic.gdx.physics.box2d.FixtureDef; 

public class Main extends BaseGameActivity { 
Random rand; 

Scene scene; 
int x , y; 
protected static final int CAMERA_WIDTH = 800; 
protected static final int CAMERA_HEIGHT = 480; 
BitmapTextureAtlas playerTexture; 
ITextureRegion playerTexureRegion; 
BitmapTextureAtlas blockTexture; 
ITextureRegion blockTexureRegion; 
BitmapTextureAtlas ZeusTexture; 
ITextureRegion ZeusTexureRegion; 
PhysicsWorld physicsWorld; 
Sprite sPlayer; 
Sprite block; 


@Override 
public EngineOptions onCreateEngineOptions() { 
    // TODO Auto-generated method stub 
    Camera mCamera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT); 
    EngineOptions options = new EngineOptions(true, 
      ScreenOrientation.LANDSCAPE_FIXED, new RatioResolutionPolicy(
        CAMERA_WIDTH, CAMERA_HEIGHT), mCamera); 
    return options; 
} 

@Override 
public void onCreateResources(
     OnCreateResourcesCallback pOnCreateResourcesCallback) 
     throws Exception { 
    // TODO Auto-generated method stub 
    loadGfx(); 
    // resource 
    pOnCreateResourcesCallback.onCreateResourcesFinished(); 
} 

private void loadGfx() { 
    // TODO Auto-generated method stub 

    BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/"); 
    ZeusTexture = new BitmapTextureAtlas(getTextureManager(), 64, 64); 
    ZeusTexureRegion = BitmapTextureAtlasTextureRegionFactory 
      .createFromAsset(ZeusTexture, this, "zeus.png", 0, 0); 
    ZeusTexture.load(); 


    // width and height power of 2^x 
    playerTexture = new BitmapTextureAtlas(getTextureManager(), 64, 64); 
    playerTexureRegion = BitmapTextureAtlasTextureRegionFactory 
      .createFromAsset(playerTexture, this, "player.png", 0, 0); 
    playerTexture.load(); 


    blockTexture = new BitmapTextureAtlas(getTextureManager(), 64, 256); 
    blockTexureRegion = BitmapTextureAtlasTextureRegionFactory 
      .createFromAsset(blockTexture, this, "block.png", 0, 0); 
    blockTexture.load(); 
} 

@Override 
public void onCreateScene(OnCreateSceneCallback pOnCreateSceneCallback) 
     throws Exception { 
    // TODO Auto-generated method stub 


    this.scene = new Scene(); 
    this.scene.setBackground(new Background(0, 0, 0)); 
    physicsWorld = new PhysicsWorld(new Vector2(0,SensorManager.GRAVITY_MARS),     false); 
    this.scene.registerUpdateHandler(physicsWorld); 
    pOnCreateSceneCallback.onCreateSceneFinished(this.scene); 

} 

@Override 
public void onPopulateScene(Scene pScene, 
     OnPopulateSceneCallback pOnPopulateSceneCallback) throws Exception { 

    int counter = 0 , timer = 0; 
    int x2 , y2; 
    counter++; 
    x =CAMERA_WIDTH /2; 
    y = 416; 
    x2 = 300; 
    y2= -40; 
    //if(counter % 100 == 0){ 
     //x++; 
     //timer++; 
    //} 




    rand = new Random(); 
    int area = rand.nextInt(800); 
    //Player 
    sPlayer = new Sprite(x, y, 
      playerTexureRegion, this.mEngine.getVertexBufferObjectManager()); 
    scene.registerTouchArea(sPlayer); 
    scene.setTouchAreaBindingOnActionDownEnabled(true); 
    scene.setTouchAreaBindingOnActionMoveEnabled(true); 
    //Block 
    block = new Sprite(x2 , y2, 
      blockTexureRegion, this.mEngine.getVertexBufferObjectManager()); 
    //Zeus Sprite 
    Sprite zeus = new Sprite(CAMERA_WIDTH/2 , 11, 
      ZeusTexureRegion, this.mEngine.getVertexBufferObjectManager()); 
    //sPlayer.setRotation(45.0f); 
    //I knew this shit would be helpful 
    block.setRotation(90.0f); 
    FixtureDef PLAYERBlock = PhysicsFactory.createFixtureDef(5.0f, 0.0f, 0.0f); 
    Body body = PhysicsFactory.createCircleBody(physicsWorld, block, BodyType.DynamicBody, PLAYERBlock); 
    this.scene.attachChild(sPlayer); 
    this.scene.attachChild(block); 
    this.scene.attachChild(zeus); 
    physicsWorld.registerPhysicsConnector(new PhysicsConnector(block,  body,true,false)); 

    pOnPopulateSceneCallback.onPopulateSceneFinished(); 

} 


public boolean onTouchEvent(MotionEvent event) { 
     if(event.getAction==MotionEvent.ACTION_DOWN){ 
     Log.e("Touching", "Touching the Screen"); 
     } 
     else if(event.getAction==MotionEvent.ACTION_UP){ 
     Log.e("Touching up", "Touching the Screen up");} 
     return true; 
    } 

}

Answer 1

1. 的一切我都從SimpleBaseGameActivity延伸的第一。

2. 您需要重寫sprite對象的onAreaTouch方法。通過這種方式：

   Sprite sprite = new Sprite(x, y, texture, this.getVertexBufferObjectManager()) { 
   
       public boolean onAreaTouched(org.andengine.input.touch.TouchEvent pSceneTouchEvent, float pTouchAreaLocalX, float pTouchAreaLocalY) 
       { 
        //<DO ANYTHING this.setPosition(x,y) method to move the sprite> 
        this.setPosition(this.getX() + 10 , this.getY() + 10); 
        return true; 
       }; 
   }; 
   scene.setTouchAreaBindingOnActionDownEnabled(true); 
   scene.registerTouchArea(sprite);