Do Attack Action
======================

.. code-block:: csharp

  protected abstract void DoAttackAction()

This abstract method performs the actual attack action once the unit is ready to attack (target in range, fire line free, reload finished). Implemented differently by each ``Attack`` subclass:

- ``SimpleAttack`` applies damage directly to the target (and splash damage, if enabled).
- ``ShellAttack`` spawns the shell/bullet/rocket prefab from the current shoot point.