void Hit(object hit)
    {
        EnemyAbstract hitAsEnemy = (EnemyAbstract)hit;
        //alternatively
        EnemyAbstract hitAsEnemy2 = hit as EnemyAbstract;

        if (hitAsEnemy != null)
        {
            hitAsEnemy.Movement();
        }

        IDamagable damageableHit = (IDamagable)hitAsEnemy;

        if (damageableHit != null)
        {
            damageableHit.TakeDamage();
        }
    }