如何使用AndEngine移動精靈對象（Android）

我正在使用andengine在android中開發遊戲。我把一個對象在精靈一樣如何使用AndEngine移動精靈對象（Android）

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);

我想用這個精靈在J2ME精靈

bikeSprite.move(--);如何做到這一點的機器人。我不想使用setPosition。

來源

2011-07-14 JohnRaja

只是放一個移動修飾符。下面給你一個例子 –

很遺憾，引擎的作者在引擎的新版本中刪除了Shape.setVelocity（）。現在你必須使用修飾符。 – Yar

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 
    // =========================================================== 
}

此代碼摘自samples project Andengine。 Reference to the original code。

來源

2011-07-14 12:13:02

我會嘗試使用PathModifier。我對我的遊戲有同樣的問題，並且可以在AndEngine示例中找到PathModifier示例：

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 
    // =========================================================== 
}

來源

2011-07-18 17:51:43 pqn

如何使用AndEngine移動精靈對象（Android）

回答

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