как переместить объект спрайта с помощью AndEngine (Android)

Я использую andengine для разработки игры на Android. Я поместил объект в спрайт, например

 this.mTexture = new Texture(32, 32, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
            this.mFaceTextureRegion = TextureRegionFactory.createFromAsset(this.mTexture, this, "gfx/bike.png", 0, 0);
---- and i place like 
Sprite bikeSprite= new Sprite(20, 50, this.mFaceTextureRegion);

Я хочу использовать этот спрайт в спрайте j2me

bikeSprite.move(--); Как мне это сделать в Android. Я не хочу использовать setPosition.


person JohnRaja    schedule 14.07.2011    source источник
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просто поместите модификатор движения. давая вам пример ниже   -  person AZ_    schedule 14.07.2011
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Жаль, что автор движка убрал Shape.setVelocity() в новой версии движка. Теперь вам нужно использовать модификаторы.   -  person Yar    schedule 14.04.2012


Ответы (2)


public class EntityModifierExample extends BaseExample {
    // ===========================================================
    // Constants
    // ===========================================================

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

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

    private Camera mCamera;
    private Texture mTexture;
    private TiledTextureRegion 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 Texture(64, 32, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
        this.mFaceTextureRegion = TextureRegionFactory.createTiledFromAsset(this.mTexture, this, "gfx/face_box_tiled.png", 0, 0, 2, 1);

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

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

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

        final int centerX = (CAMERA_WIDTH - this.mFaceTextureRegion.getWidth()) / 2;
        final int centerY = (CAMERA_HEIGHT - this.mFaceTextureRegion.getHeight()) / 2;

        final Rectangle rect = new Rectangle(centerX + 100, centerY, 32, 32);
        rect.setColor(1, 0, 0);

        final AnimatedSprite face = new AnimatedSprite(centerX - 100, centerY, this.mFaceTextureRegion);
        face.animate(100);
        face.setBlendFunction(GL10.GL_SRC_ALPHA, GL10.GL_ONE_MINUS_SRC_ALPHA);

        final LoopEntityModifier entityModifier =
            new LoopEntityModifier(
                    new IEntityModifierListener() {
                        @Override
                        public void onModifierStarted(final IModifier<IEntity> pModifier, final IEntity pItem) {
                            EntityModifierExample.this.runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    Toast.makeText(EntityModifierExample.this, "Sequence started.", Toast.LENGTH_LONG).show();
                                }
                            });
                        }

                        @Override
                        public void onModifierFinished(final IModifier<IEntity> pEntityModifier, final IEntity pEntity) {
                            EntityModifierExample.this.runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    Toast.makeText(EntityModifierExample.this, "Sequence finished.", Toast.LENGTH_LONG).show();
                                }
                            });
                        }
                    },
                    1,
                    new ILoopEntityModifierListener() {
                        @Override
                        public void onLoopStarted(final LoopModifier<IEntity> pLoopModifier, final int pLoop, final int pLoopCount) {
                            EntityModifierExample.this.runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    Toast.makeText(EntityModifierExample.this, "Loop: '" + (pLoop + 1) + "' of '" + pLoopCount + "' started.", Toast.LENGTH_SHORT).show();
                                }
                            });
                        }

                        @Override
                        public void onLoopFinished(final LoopModifier<IEntity> pLoopModifier, final int pLoop, final int pLoopCount) {
                            EntityModifierExample.this.runOnUiThread(new Runnable() {
                                @Override
                                public void run() {
                                    Toast.makeText(EntityModifierExample.this, "Loop: '" + (pLoop + 1) + "' of '" + pLoopCount + "' finished.", Toast.LENGTH_SHORT).show();
                                }
                            });
                        }
                    },
                    new SequenceEntityModifier(
                            new RotationModifier(1, 0, 90),
                            new AlphaModifier(2, 1, 0),
                            new AlphaModifier(1, 0, 1),
                            new ScaleModifier(2, 1, 0.5f),
                            new DelayModifier(0.5f),
                            new ParallelEntityModifier(
                                    new ScaleModifier(3, 0.5f, 5),
                                    new RotationByModifier(3, 90)
                            ),
                            new ParallelEntityModifier(
                                    new ScaleModifier(3, 5, 1),
                                    new RotationModifier(3, 180, 0)
                            )
                    )
            );

        face.registerEntityModifier(entityModifier);
        rect.registerEntityModifier(entityModifier.clone());

        scene.attachChild(face);
        scene.attachChild(rect);

        return scene;
    }

    @Override
    public void onLoadComplete() {

    }

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

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

Этот код взят из примеров проекта Andengine. Ссылка на исходный код.

person AZ_    schedule 14.07.2011

Я бы попробовал использовать PathModifier. У меня такая же проблема с моей игрой, и пример PathModifier можно найти в примерах AndEngine:

package org.anddev.andengine.examples;

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.IEntity;
import org.anddev.andengine.entity.modifier.LoopEntityModifier;
import org.anddev.andengine.entity.modifier.PathModifier;
import org.anddev.andengine.entity.modifier.PathModifier.IPathModifierListener;
import org.anddev.andengine.entity.modifier.PathModifier.Path;
import org.anddev.andengine.entity.scene.Scene;
import org.anddev.andengine.entity.scene.background.RepeatingSpriteBackground;
import org.anddev.andengine.entity.sprite.AnimatedSprite;
import org.anddev.andengine.opengl.texture.Texture;
import org.anddev.andengine.opengl.texture.TextureOptions;
import org.anddev.andengine.opengl.texture.region.TextureRegionFactory;
import org.anddev.andengine.opengl.texture.region.TiledTextureRegion;
import org.anddev.andengine.opengl.texture.source.AssetTextureSource;
import org.anddev.andengine.util.Debug;
import org.anddev.andengine.util.modifier.ease.EaseSineInOut;

import android.widget.Toast;

/**
 * @author Nicolas Gramlich
 * @since 11:54:51 - 03.04.2010
 */
public class PathModifierExample extends BaseExample {
    // ===========================================================
    // Constants
    // ===========================================================

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

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

    private Camera mCamera;

    private RepeatingSpriteBackground mGrassBackground;

    private Texture mTexture;
    private TiledTextureRegion mPlayerTextureRegion;

    // ===========================================================
    // Constructors
    // ===========================================================

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

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

    @Override
    public Engine onLoadEngine() {
        Toast.makeText(this, "You move my sprite right round, right round...", Toast.LENGTH_LONG).show();
        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 Texture(128, 128, TextureOptions.DEFAULT);
        this.mPlayerTextureRegion = TextureRegionFactory.createTiledFromAsset(this.mTexture, this, "gfx/player.png", 0, 0, 3, 4);

        this.mGrassBackground = new RepeatingSpriteBackground(CAMERA_WIDTH, CAMERA_HEIGHT, this.mEngine.getTextureManager(), new AssetTextureSource(this, "gfx/background_grass.png"));

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

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

        final Scene scene = new Scene();
        scene.setBackground(this.mGrassBackground);

        /* Create the face and add it to the scene. */
        final AnimatedSprite player = new AnimatedSprite(10, 10, 48, 64, this.mPlayerTextureRegion);

        final Path path = new Path(5).to(10, 10).to(10, CAMERA_HEIGHT - 74).to(CAMERA_WIDTH - 58, CAMERA_HEIGHT - 74).to(CAMERA_WIDTH - 58, 10).to(10, 10);

        /* Add the proper animation when a waypoint of the path is passed. */
        player.registerEntityModifier(new LoopEntityModifier(new PathModifier(30, path, null, new IPathModifierListener() {
            @Override
            public void onPathStarted(final PathModifier pPathModifier, final IEntity pEntity) {
                Debug.d("onPathStarted");
            }

            @Override
            public void onPathWaypointStarted(final PathModifier pPathModifier, final IEntity pEntity, final int pWaypointIndex) {
                Debug.d("onPathWaypointStarted:  " + pWaypointIndex);
                switch(pWaypointIndex) {
                    case 0:
                        player.animate(new long[]{200, 200, 200}, 6, 8, true);
                        break;
                    case 1:
                        player.animate(new long[]{200, 200, 200}, 3, 5, true);
                        break;
                    case 2:
                        player.animate(new long[]{200, 200, 200}, 0, 2, true);
                        break;
                    case 3:
                        player.animate(new long[]{200, 200, 200}, 9, 11, true);
                        break;
                }
            }

            @Override
            public void onPathWaypointFinished(final PathModifier pPathModifier, final IEntity pEntity, final int pWaypointIndex) {
                Debug.d("onPathWaypointFinished: " + pWaypointIndex);
            }

            @Override
            public void onPathFinished(final PathModifier pPathModifier, final IEntity pEntity) {
                Debug.d("onPathFinished");
            }
        }, EaseSineInOut.getInstance())));
        scene.attachChild(player);

        return scene;
    }

    @Override
    public void onLoadComplete() {

    }

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

    // ===========================================================
    // Inner and Anonymous Classes
    // ===========================================================
}
person pqn    schedule 18.07.2011