在andengine中，碰撞在一个分离的实体上被触发

Question

//playerBall扩展动画类

//即使实体变为不可见，也会检测到碰撞

碰撞发生在实体分离前的位置

private void ballsR(){
              registerUpdateHandler(new FPSLogger());
              Random r = new Random();
              int i= r.nextInt(7)+1;
          if(count<1){
         ballForColl[0] = ball;
          count++;
          System.out.println(count);
          }
          registerUpdateHandler(this.ballsDet = new TimerHandler(5.0f,true, new ITimerCallback() {
            @Override
            public void onTimePassed(TimerHandler pTimerHandler) {
                // TODO Auto-generated method stub

                /* ball.setVisible(false);
                 ball.setIgnoreUpdate(true);
                  ball.detachSelf();
                  ball.clearUpdateHandlers();
                  @override*/
            resourcesManager.engine.runOnUpdateThread(new Runnable() {
                    @Override
                    public void run() {
                            /* Now it is save to remove the entity! */
                            //pScene.detachChild(SpriteRemoveExample.this.mFaceToRemove);
                        detachChild((ball));
                        ball.setIgnoreUpdate(true);
                    }
            });

                //  detachChild(ball);
             //  unregisterUpdateHandler(ball) ;                
            }
        }));

/************************************************************/

//my player ball class

     public playerBall(final float pX, final float pY, final TiledTextureRegion pTextureRegion,VertexBufferObjectManager vbom) {
         super(pX, pY, pTextureRegion,vbom);
         this.mPhysicsHandler= new PhysicsHandler(this);
         this.registerUpdateHandler(this.mPhysicsHandler);
        this.mPhysicsHandler.setVelocity(DEMO_VELOCITY, DEMO_VELOCITY);
        // System.out.println("this is srs1");
 }
     @Override
     protected void onManagedUpdate(final float pSecondsElapsed) {
             if(this.mX < 0) {
                // System.out.println("this is srs");
                     this.mPhysicsHandler.setVelocityX(DEMO_VELOCITY);
             } else if(this.mX + this.getWidth() > 800) {
                     this.mPhysicsHandler.setVelocityX(-DEMO_VELOCITY);
             }
             if(this.mY < 0) {
                     this.mPhysicsHandler.setVelocityY(DEMO_VELOCITY);
             } else if(this.mY + this.getHeight() > 480) {
                     this.mPhysicsHandler.setVelocityY(-DEMO_VELOCITY);
             }
             super.onManagedUpdate(pSecondsElapsed);
     }

}

Answer 1

什么是"ball"?它是Sprite, AnimatedSprite, Circle…
它是否包含Body?

如果后者是真的，你可能忘记从物理世界中删除它…

试试这个:

final PhysicsConnector physicsConnector =
physicsWorld.getPhysicsConnectorManager().findPhysicsConnectorByShape(shape);
    mEngine.runOnUpdateThread(new Runnable() 
    {
        @Override
        public void run() 
        {
            if (physicsConnector != null)
            {
                 physicsWorld.unregisterPhysicsConnector(physicsConnector);
                 body.setActive(false);
                 physicsWorld.destroyBody(bbody);
                 scene.detachChild(shape);
            }
        }
    });