Question

你是Android游戏开发中的新手我使用AndEngine我需要ploat路径但是有一个问题

看看图像。我需要的路径就像第一个物体应该从屏幕的底部移动到屏幕的中间。但是当我绘制路径时，它会移动到屏幕的中间但是会回到第二个图像在第二个图像中。图像在路径中移动，但它就像第二个图像。我需要它作为第一个图像。它应该在第3个点停止并且应该从第一个点开始。

我的代码如下：

package com.example.sss;

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.IEntity;
import org.andengine.entity.modifier.LoopEntityModifier;
import org.andengine.entity.modifier.PathModifier;
import org.andengine.entity.modifier.PathModifier.IPathModifierListener;
import org.andengine.entity.modifier.PathModifier.Path;
import org.andengine.entity.scene.Scene;
import org.andengine.entity.scene.background.RepeatingSpriteBackground;
import org.andengine.entity.sprite.AnimatedSprite;
import org.andengine.entity.util.FPSLogger;
import org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlas;
import   org.andengine.opengl.texture.atlas.bitmap.BitmapTextureAtlasTextureRegionFactory;
import org.andengine.opengl.texture.atlas.bitmap.source.AssetBitmapTextureAtlasSource;
import org.andengine.opengl.texture.region.TiledTextureRegion;
import org.andengine.ui.activity.SimpleBaseGameActivity;

/**
 * (c) 2010 Nicolas Gramlich
 * (c) 2011 Zynga
  *
 * @author Nicolas Gramlich
* @since 13:58:48 - 19.07.2010
 */
public class MainActivity extends SimpleBaseGameActivity {
// ===========================================================
// Constants
// ===========================================================

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

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

private RepeatingSpriteBackground mGrassBackground;

private BitmapTextureAtlas mBitmapTextureAtlas;
private TiledTextureRegion mPlayerTextureRegion;

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

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

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


public EngineOptions onCreateEngineOptions() {
    final Camera camera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);

    return new EngineOptions(true, ScreenOrientation.LANDSCAPE_FIXED, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), camera);
}


public void onCreateResources() {
    BitmapTextureAtlasTextureRegionFactory.setAssetBasePath("gfx/");

    this.mBitmapTextureAtlas = new BitmapTextureAtlas(this.getTextureManager(), 128, 128);
    this.mPlayerTextureRegion = BitmapTextureAtlasTextureRegionFactory.createTiledFromAsset(this.mBitmapTextureAtlas, this, "player.png", 0, 0, 3, 4);
    this.mGrassBackground = new RepeatingSpriteBackground(CAMERA_WIDTH, CAMERA_HEIGHT, this.getTextureManager(), AssetBitmapTextureAtlasSource.create(this.getAssets(), "gfx/background_grass.png"), this.getVertexBufferObjectManager());
    this.mBitmapTextureAtlas.load();
}


public Scene onCreateScene() {
    this.mEngine.registerUpdateHandler(new FPSLogger());

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




    /* Calculate the coordinates for the face, so its centered on the camera.     */
    final float centerX = (CAMERA_WIDTH - this.mPlayerTextureRegion.getWidth()) / 2;
    final float centerY = (CAMERA_HEIGHT - this.mPlayerTextureRegion.getHeight()) / 2;
    System.out.println("aaaaaa"+centerX+"asdadas");

    /* Create the sprite and add it to the scene. */
    final AnimatedSprite player_one = new AnimatedSprite(centerX, centerY, 48, 64, this.mPlayerTextureRegion, this.getVertexBufferObjectManager());

    final Path path_one =  new Path(5).to(CAMERA_WIDTH - 58, 10).to(10, 10).to(100, CAMERA_HEIGHT/2f);//to(10, 10).to(10, CAMERA_HEIGHT - 74).to(CAMERA_WIDTH - 58, CAMERA_HEIGHT - 74).to(CAMERA_WIDTH - 58, 10).to(10, 10);
    final AnimatedSprite player = new AnimatedSprite(centerX, centerY, 48, 64, this.mPlayerTextureRegion, this.getVertexBufferObjectManager());
    final Path path = new Path(5).to(CAMERA_WIDTH - 58, 10).to(10, 10).to(10, CAMERA_HEIGHT/2f);


    player.registerEntityModifier(new LoopEntityModifier(new PathModifier(5, path, null, new IPathModifierListener() {

        public void onPathStarted(final PathModifier pPathModifier, final IEntity pEntity) {

        }


        public void onPathWaypointStarted(final PathModifier pPathModifier, final IEntity pEntity, final int 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:
                    //scene.setVisible(false);
                    player.animate(new long[]{200, 200, 200}, 9, 11, true);
                    break;
            }
        }


        public void onPathWaypointFinished(final PathModifier pPathModifier, final IEntity pEntity, final int pWaypointIndex) {



        }


        public void onPathFinished(final PathModifier pPathModifier, final IEntity pEntity) {
            System.out.println("tileesdfsdfsdfgfdgdfsee"+player.getCurrentTileIndex() );
        }
    })));
















player_one.registerEntityModifier(new LoopEntityModifier(new PathModifier(5, path_one,    null, new IPathModifierListener() {

        public void onPathStarted(final PathModifier pPathModifier, final   IEntity pEntity) {

        }


        public void onPathWaypointStarted(final PathModifier pPathModifier,   final IEntity pEntity, final int 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);

                         System.out.println("insideeeeeeeeeeeeeeeeeeeeeeeee");
                    scene.detachChild(player_one);
                    scene.attachChild(player);
                    break;
                case 3:
                    player.animate(new long[]{200, 200, 200}, 9, 11, true);
                    break;
            }
        }


        public void onPathWaypointFinished(final PathModifier pPathModifier, final IEntity pEntity, final int pWaypointIndex) {



        }


        public void onPathFinished(final PathModifier pPathModifier, final IEntity pEntity) {
            System.out.println("tileesdfsdfsdfgfdgdfsee"+player.getCurrentTileIndex() );
        }
    })));






    scene.attachChild(player);

    return scene;
}

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

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

请帮帮我。谢谢你提前

Answer 1

如果有三个点，则应在Path构造函数中指定它：

final Path path = new Path(3).to(CAMERA_WIDTH - 58, 10).to(10, 10).to(10, CAMERA_HEIGHT/2f);

代替

final Path path = new Path(5).to(CAMERA_WIDTH - 58, 10).to(10, 10).to(10, CAMERA_HEIGHT/2f);

在AndEngine中绘制一条路径来移动图像或精灵

1 个答案: