public void TakeDamage(float damage)
    {
        currentHealth -= damage;
        if (currentHealth <= 0)
        {
            // Activate Power Up
            switch (powerUp)
            {
            case PowerUps.IncreaseSize:
                _powerUpManager.IncreaseSizeOfEnemies(3, 10);
                break;

            case PowerUps.DecreaseSpeed:
                _powerUpManager.DecreaseSpeedOfEnemies(2, 10);
                break;
            }

            // Die
            Destroy(gameObject);
        }
    }