GameManager gm = GameManager.getInstance();

private int actionPoints;
private int damage;
private Text text;

public PlayerPower(float pX, float pY, float pWidth, float pHeight,
        ITextureRegion pTextureRegion,
        VertexBufferObjectManager pVertexBufferObjectManager, Engine engine, int i) {
    super(pX, pY, pWidth, pHeight, pTextureRegion, pVertexBufferObjectManager);
    // TODO Auto-generated constructor stub

    this.damage = i;

    text = new Text(50, 40, ResourceManager.getIstance().mFont, Integer.toString(i), engine.getVertexBufferObjectManager());
    this.attachChild(text);

}

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

    if(pSceneTouchEvent.getAction() == TouchEvent.ACTION_DOWN){
    gm.setDamage(damage);
    return true;
    }

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

    }

    return false;

}


}

public class Opponent extends Sprite {

GameManager gm = GameManager.getInstance();
Engine engine;
Text text;

private int hp;

public Opponent(float pX, float pY, float pWidth, float pHeight,
        ITextureRegion pTextureRegion,
        VertexBufferObjectManager pVertexBufferObjectManager, Engine engine) {
    super(pX, pY, pWidth, pHeight, pTextureRegion, pVertexBufferObjectManager);

    this.engine = engine;
    hp = 10;

    text = new Text(50, 40, ResourceManager.getIstance().mFont, Integer.toString(hp), engine.getVertexBufferObjectManager());
    this.attachChild(text);

}

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

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

        int damage = gm.getDamage();

        if(damage > -1){
            hp = hp - damage;

    }
    }

    return true;

}

@Override
protected void onManagedUpdate(float pSecondsElapsed){
    super.onManagedUpdate(pSecondsElapsed);

    text.setText(Integer.toString(hp));

}
}