Come utilizzare correttamente Touch ascoltatore/evento e facilitare la funzione in AndEngine

Question

Questo evento touch non si accende mai. Ho attraversato gli esempi e i codici di origine e ora sono leggermente confuso sul metodo migliore per fare quello che voglio.

Disegno uno sprite sulla scena. Voglio che lo sprite si muova con una funzione di facilità con le coordinate dell'evento utenti Touch.

Questo è il codice finora:

private static final int CAMERA_WIDTH = 720;
private static final int CAMERA_HEIGHT = 480;

// ===========================================================
// Fields
// ===========================================================

private Camera mCamera;
private BitmapTextureAtlas mTexture;
private TextureRegion mFaceTextureRegion;
// ===========================================================
// Constructors
// ===========================================================

// ===========================================================
// Getter & Setter
// ===========================================================

// ===========================================================
// Methods for/from SuperClass/Interfaces
// ===========================================================

@Override
public Engine onLoadEngine() {
    this.mCamera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
    return new Engine(new EngineOptions(true, ScreenOrientation.LANDSCAPE, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), this.mCamera));
}

@Override
public void onLoadResources() {
    this.mTexture = new BitmapTextureAtlas(64, 32, TextureOptions.BILINEAR);
    this.mFaceTextureRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mTexture, this, "gfx/boxface.png", 0, 0);

    this.getEngine().getTextureManager().loadTexture(this.mTexture);
}

@Override
public Scene onLoadScene() {
    this.getEngine().registerUpdateHandler(new FPSLogger());

    final Scene scene = new Scene();
    scene.setBackground(new ColorBackground(0.09804f, 0.6274f, 0.8784f));

    final int x = (CAMERA_WIDTH - this.mFaceTextureRegion.getWidth()) / 2;
    final int y = (CAMERA_HEIGHT - this.mFaceTextureRegion.getHeight()) / 2;
    final Sprite face = new Sprite(x, y, this.mFaceTextureRegion);
    scene.attachChild(face);
    face.setPosition(134, 200);

// Qui è dove provo ad implementare Touch Listener e Codice // È giusto?

    scene.setOnAreaTouchListener(new IOnAreaTouchListener() {
        //@Override
        public boolean onAreaTouched(TouchEvent pSceneTouchEvent,ITouchArea pTouchArea, float pTouchAreaLocalX,float pTouchAreaLocalY) {
            if(pSceneTouchEvent.isActionDown()) {
                int facePosX = (int) (pSceneTouchEvent.getX() - face.getWidth() / 2);
                int facePosY = (int) (pSceneTouchEvent.getY() - face.getHeight() / 2);

                face.registerEntityModifier(new MoveModifier(500, face.getX(), facePosX, face.getY(),facePosY,EaseQuadIn.getInstance())); 
            }
            return false;
        }
    });
    return scene;
}


@Override
public void onLoadComplete() {

}

Finalmente sono abbastanza sicuro di dover usare pScene.registerTouchArea (faccia); e pScene.setTouchAREAbindingEnabled (true);

Qualsiasi chiarimento sarebbe di grande utilità. grazie

Answer 1

Questo funziona! Ho appena continuato a scavare e ho trovato la risposta qui: http: //www.andengine.org/forums/tutorials/touchevent-t1490.html

Ecco il codice completato. Lo sprite si carica al centro della pagina. Ovunque fai clic su Sprite "tween" o faciliterà le coordinate del tuo tatto.

package and.engine.test;

import org.anddev.andengine.engine.Engine;
import org.anddev.andengine.engine.camera.Camera;
import org.anddev.andengine.engine.options.EngineOptions;
import org.anddev.andengine.engine.options.EngineOptions.ScreenOrientation;
import org.anddev.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy;
import org.anddev.andengine.entity.util.FPSLogger;
import org.anddev.andengine.ui.activity.BaseGameActivity;
import org.anddev.andengine.entity.modifier.MoveModifier;
import org.anddev.andengine.entity.scene.Scene;
import org.anddev.andengine.util.modifier.ease.EaseQuadIn;
import org.anddev.andengine.entity.scene.Scene.IOnSceneTouchListener;
import org.anddev.andengine.entity.scene.background.ColorBackground;
import org.anddev.andengine.entity.sprite.Sprite;
import org.anddev.andengine.input.touch.TouchEvent;
import org.anddev.andengine.opengl.texture.TextureOptions;
import org.anddev.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas;
import org.anddev.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory;
import org.anddev.andengine.opengl.texture.region.TextureRegion;



public class AndEnginetestActivity extends BaseGameActivity {
    // ===========================================================
    // Constants
    // ===========================================================

    private static final int CAMERA_WIDTH = 720;
    private static final int CAMERA_HEIGHT = 480;

    // ===========================================================
    // Fields
    // ===========================================================

    private Camera mCamera;
    private BitmapTextureAtlas mTexture;
    private TextureRegion mFaceTextureRegion;
    // ===========================================================
    // Constructors
    // ===========================================================

    // ===========================================================
    // Getter & Setter
    // ===========================================================

    // ===========================================================
    // Methods for/from SuperClass/Interfaces
    // ===========================================================

    @Override
    public Engine onLoadEngine() {
        this.mCamera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);
        return new Engine(new EngineOptions(true, ScreenOrientation.LANDSCAPE, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), this.mCamera));
    }

    @Override
    public void onLoadResources() {
        this.mTexture = new BitmapTextureAtlas(64, 32, TextureOptions.BILINEAR);
        this.mFaceTextureRegion = BitmapTextureAtlasTextureRegionFactory.createFromAsset(this.mTexture, this, "gfx/boxface.png", 0, 0);

        this.getEngine().getTextureManager().loadTexture(this.mTexture);
    }

    @Override
    public Scene onLoadScene() {
        this.getEngine().registerUpdateHandler(new FPSLogger());

        final Scene scene = new Scene();
        scene.setBackground(new ColorBackground(0.09804f, 0.6274f, 0.8784f));

        final int x = (CAMERA_WIDTH - this.mFaceTextureRegion.getWidth()) / 2;
        final int y = (CAMERA_HEIGHT - this.mFaceTextureRegion.getHeight()) / 2;
        final Sprite face = new Sprite(x, y, this.mFaceTextureRegion);
        scene.registerTouchArea(face);
        scene.attachChild(face);
        //face.setPosition(134, 200);

        scene.setOnSceneTouchListener(new IOnSceneTouchListener() {

            @Override
            public boolean onSceneTouchEvent(Scene pScene,TouchEvent pSceneTouchEvent) {
                int facePosX = (int) (pSceneTouchEvent.getX() - face.getWidth() / 2);
                int facePosY = (int) (pSceneTouchEvent.getY() - face.getHeight() / 2);
                 face.registerEntityModifier(new MoveModifier(1, face.getX(), facePosX,face.getY(), facePosY, EaseQuadIn.getInstance()));               
                 return false;
            }
        });


        scene.setTouchAreaBindingEnabled(true);
        return scene;
    }


    @Override
    public void onLoadComplete() {

    }

    // ===========================================================
    // Methods
    // ===========================================================

    // ===========================================================
    // Inner and Anonymous Classes
    // ===========================================================
}