I am new to Android game development. I am using AndEngine GLES-2. I have created a box with a sprite. This box is now draggable by using the code below. It works fine.

But I want multi-touch on this: I want to rotate the sprite with two fingers on that box, and to keep it draggable.

I've no idea how do do that, which way should I go?

final float centerX = (CAMERA_WIDTH - this.mBox.getWidth()) / 2;
final float centerY = (CAMERA_HEIGHT - this.mBox.getHeight()) / 2;

Box = new Sprite(centerX, centerY, this.mBox, this.getVertexBufferObjectManager()) {

    public boolean onAreaTouched(TouchEvent pSceneTouchEvent, float pTouchAreaLocalX, float pTouchAreaLocalY) {

        this.setPosition(pSceneTouchEvent.getX() - this.getWidth()/ 2, pSceneTouchEvent.getY() - this.getHeight() / 2);

        float pValueX = pSceneTouchEvent.getX();
        float pValueY = CAMERA_HEIGHT-pSceneTouchEvent.getY();

        float  dx = pValueX -  gun.getX();
        float  dy = pValueY -  gun.getY();

        double  Radius = Math.atan2(dy,dx);
        double Angle = Radius * 360 ;

        Box.setRotation((float)Math.toDegrees(Angle));
        return true;
    }