Andengine Collision Не обнаружено

Question

Я создал плейер игрока и вражеский прямоугольник, который создает Rectangle Bodies, которые должны быть сталкивающимися, и следует вызвать метод beginContact() контактного слушателя. Не знаю, почему оно не вызывался:/

public class GameScene extends Scene{ 
Engine mEngine; 
Camera mCamera; 
BaseGameActivity activity; 
VertexBufferObjectManager vbom; 

PhysicsWorld world; 

Rectangle player; 
Rectangle enemy; 

public GameScene(Engine mEngine, Camera mCamera, BaseGameActivity activity, VertexBufferObjectManager vbom) { 
    this.mEngine = mEngine; 
    this.mCamera = mCamera; 
    this.activity = activity; 
    this.vbom = vbom; 

    load(); 
} 

void load(){ 

    world = new PhysicsWorld(new Vector2(0, SensorManager.GRAVITY_EARTH),false); 


    player = new Rectangle(mCamera.getWidth()/2,mCamera.getHeight()/2,50,50,vbom){ 
     @Override 
     public boolean onAreaTouched(TouchEvent pSceneTouchEvent, float pTouchAreaLocalX, float pTouchAreaLocalY) { 
      fire(); 
      return true; 
     } 
    }; 

    enemy = new Rectangle(mCamera.getWidth()/2,mCamera.getHeight()/2 - 400,50,50,vbom){ 
     @Override 
     public void onAttached() { 

      TimerHandler handler = new TimerHandler(3, new ITimerCallback() { 
       @Override 
       public void onTimePassed(TimerHandler pTimerHandler) { 
        enemyFire(); 
       } 
      }); 

      handler.setAutoReset(true); 

      registerUpdateHandler(handler); 
      super.onAttached(); 
     } 
    }; 

    attachChild(enemy); 
    attachChild(player); 
    registerUpdateHandler(world); 

    world.setContactListener(new ContactListener() { 
     @Override 
     public void beginContact(Contact contact) { 
      Log.e("begin","Contact"); 
     } 

     @Override 
     public void endContact(Contact contact) { 

     } 

     @Override 
     public void preSolve(Contact contact, Manifold manifold) { 

     } 

     @Override 
     public void postSolve(Contact contact, ContactImpulse contactImpulse) { 

     } 
    }); 
    registerTouchArea(player); 
} 

void enemyFire(){ 
    Rectangle rect = new Rectangle(mCamera.getWidth()/2,mCamera.getHeight()/2 - 400,50,50,vbom); 
    FixtureDef fix = PhysicsFactory.createFixtureDef(0.5f,0.5f,0.5f); 
    Body b = PhysicsFactory.createBoxBody(world,rect, BodyDef.BodyType.KinematicBody,fix); 

    b.setLinearVelocity(0, 7); 
    attachChild(rect); 
    world.registerPhysicsConnector(new PhysicsConnector(rect, b)); 

} 


void fire(){ 
    Rectangle rect = new Rectangle(mCamera.getWidth()/2,mCamera.getHeight()/2,50,50,vbom); 
    FixtureDef fix = PhysicsFactory.createFixtureDef(0.5f,0.5f,0.5f); 
    Body b = PhysicsFactory.createBoxBody(world,rect, BodyDef.BodyType.KinematicBody,fix); 

    b.setLinearVelocity(0,-7); 
    attachChild(rect); 
    world.registerPhysicsConnector(new PhysicsConnector(rect,b)); 

} 

}

Answer 1

Потому что это немного больше complicated.It должно быть что-то вроде этого:

private ContactListener createContactListener() 
{ 
ContactListener contactListener = new ContactListener() 
{ 
    @Override 
    public void beginContact(Contact contact) 
    { 
     final Fixture x1 = contact.getFixtureA(); 
     final Fixture x2 = contact.getFixtureB(); 

     if (x2.getBody().getUserData().equals("player")&&x1.getBody().getUserData().equals("monster")) 
     { 
     Log.i("CONTACT", "BETWEEN PLAYER AND MONSTER!"); 
     } 
    } 

    @Override 
    public void endContact(Contact contact) 
    { 

    } 

    @Override 
    public void preSolve(Contact contact, Manifold oldManifold) 
    { 

    } 

    @Override 
    public void postSolve(Contact contact, ContactImpulse impulse) 
    { 

    } 
}; 
return contactListener; 

}

Здесь найдет дополнительную информацию: http://www.matim-dev.com/handling-collisions-between-bodies.html