andEngine：为什么触摸事件不起作用？ [英] andEngine: Why the touch event doesn't work?

问题描述

我正在学习如何使用Box2D的和andEngine。我试图让我的身体与移动精灵。我做到了，当我在onCreateScene codeD之前的一切工作，但现在我想打一个单独的类我的精灵。所以现在我onCreateScene看起来是这样的：

I'm learning how to use box2d and andEngine. I am trying to make my sprite with body move. I made it work before when I coded everything in onCreateScene, but now I want to make a separate class for my sprite. So right now my onCreateScene looks like this:

    mScene = new Scene();
    mScene.registerUpdateHandler(physicsWorld);
    Kapsel kapselBialy = new Kapsel(100, 100, 100, 100,     ResourceManager.getInstance().mBialyKapselRegion, getVertexBufferObjectManager(), physicsWorld);
    mScene.registerTouchArea(kapselBialy);
    mScene.setTouchAreaBindingOnActionDownEnabled(true);
    mScene.attachChild(kapselBialy);
    pOnCreateSceneCallback.onCreateSceneFinished(mScene);

和我Kapsel类看起来是这样的：

And my Kapsel class looks like this:

public class Kapsel extends Sprite  {

private Body body;


public Kapsel(float pX, float pY, float pWidth, float pHeight,
        ITextureRegion pTextureRegion,
        VertexBufferObjectManager pVertexBufferObjectManager, PhysicsWorld physicsWorld) {
    super(pX, pY, pWidth, pHeight, pTextureRegion, pVertexBufferObjectManager);
    createPhysics(physicsWorld);


}
//definiowanie zahchowań po dotyku
@Override
public boolean onAreaTouched(final TouchEvent pSceneTouchEvent, final float pTouchAreaLocalX, final float pTouchAreaLocalY){

    if(pSceneTouchEvent.getAction() == TouchEvent.ACTION_UP){

        body.setLinearVelocity(-((pSceneTouchEvent.getX()/32 - body.getPosition().x) * 10), -((pSceneTouchEvent.getY()/32 - body.getPosition().y) * 10));

    }

    return true;
}

//Tworzenie ciała i fizyki dla kapsla
private void createPhysics(PhysicsWorld physicsWorld){
    body = PhysicsFactory.createCircleBody(physicsWorld, this, BodyType.DynamicBody, PhysicsFactory.createFixtureDef(1.0f, 0.5f, 0.5f));
    physicsWorld.registerPhysicsConnector(new PhysicsConnector(this, body, true, true));
}
}

我的精灵显示正常，但触摸事件不起作用。我缺少的东西吗？

My sprite shows properly, but the touch event doesn't work. Am I missing something?

推荐答案

确定这样的问题是，在 onPopulateScene（）我没有把 pOnPopulateSceneCallback.onPopulateSceneFinished（）; 。事实证明，即使你在onCreateScene定义场景和精灵（）它仍然需要牛逼把在onPopulateScene（）。不过我会记住，我不应该把'这个'中的构造函数（即使它的工作原理:)）。

Ok so the problem was that in onPopulateScene() i did not put pOnPopulateSceneCallback.onPopulateSceneFinished();. Turns out that even if you define your scene and sprites in onCreateScene() it is still needed t put that in onPopulateScene(). Still I will keep in mind that I should not put 'this' in constructor (even if it works :) ).

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