Battle with boss

class Program
{
    static void Main(string[] args)
    {
        Player player = new Player();
        Boss boss = new Boss();
        Battleground battleground = new Battleground();
        battleground.Battle(player, boss);
    }
}

class Player
{
    private bool _isFierBallAttack = false;
    private int _quantityRecovers = 4;
    private int _health = 100;
    private int _mana = 100;
    private int _damage = 10;

    public void ChangeHealth(int value)
    {
        _health -= value;
    }

    public int GiveValueOfHealth()
    {
        return _health;
    }

    public int GiveValueOfMana()
    {
        return _mana;
    }

    public int DamageAttack()
    {
        return _damage;
    }

    public int DamageFierBallAttack()
    {
        int damageFierballAttack = 50;
        int manaPoints = 30;

        _mana -= manaPoints;
        _isFierBallAttack = true;
        return damageFierballAttack;
    }

    public void ManaRecovery()
    {
        int manaRecoverPerOneMove = 1;
        if (_mana < 100)
        {
            _mana += manaRecoverPerOneMove;
        }
    }

    public int DamageDetonation()
    {
        int damage = 100;
        int manaPoints = 90;

        if (_mana < manaPoints)
        {
            Console.WriteLine("У вас недостаточно маны.");
            return 0;
        }
        else if (_isFierBallAttack == true)
        {
            _mana -= manaPoints;
            _isFierBallAttack = false;
            return damage;
        }
        else
        {
            Console.WriteLine("Сначала нужно использовать удар огненым шаром.");
            return 0;
        }
    }

    public void RecoverManaAndHealth()
    {
        if (_quantityRecovers > 0)
        {
            _health = 100;
            _mana = 100;
            _quantityRecovers--;
            Console.WriteLine($"У вас осталось {_quantityRecovers} регенираций.");
        }
        else
        {
            Console.WriteLine("Вы больше не можете регенерировать свое здоровье и ману в этом бою.");
        }
    }
}

class Boss
{
    private int _health = 600;
    private int _damage = 6;
    private int _berserkMode = 10;

    public void Attack(Player player)
    {
        if (_health <= _health / 2)
        {
            player.ChangeHealth(_berserkMode);
        }
        else
        {
            player.ChangeHealth(_damage);
        }
    }

    public int GiveValueOfHealth()
    {
        return _health;
    }

    public void ChangeHealth(int value)
    {
        _health -= value;
    }
}

class Battleground
{
    public void Battle(Player player, Boss boss)
    {
        const string CommandAttack = "attack";
        const string CommandFierBall = "fier ball";
        const string CommandDetonation = "detonation";
        const string CommandRecover = "recover";

        int horizontallyEnemyConsoleHealthPosition = 20;
        int verticalsEnemyConsoleHealthPosition = 0;
        int horizontallyPlayerConsolePosition = 0;
        int verticalsPlayerConsoleHealthPosition = 0;
        bool isWorking = true;

        while (isWorking)
        {
            int bossHealth = boss.GiveValueOfHealth();
            int playerHealth = player.GiveValueOfHealth();
            int playerMana = player.GiveValueOfMana();

            Console.SetCursorPosition(horizontallyEnemyConsoleHealthPosition, verticalsEnemyConsoleHealthPosition);
            Console.ForegroundColor = ConsoleColor.DarkRed;
            Console.WriteLine($"{bossHealth} - здоровье врага");
            Console.ResetColor();
            Console.SetCursorPosition(horizontallyPlayerConsolePosition, verticalsPlayerConsoleHealthPosition);
            Console.WriteLine($"{playerHealth} - Здоровье\n{playerMana} - Мана\n\n\n");
            Console.WriteLine($"Чтобы нанести обычную атаку введите - {CommandAttack}");
            Console.WriteLine($"Чтобы нанести удар огненным мячом введите - {CommandFierBall}");
            Console.WriteLine($"Чтобы нанести удар взрывом - {CommandDetonation}");
            Console.WriteLine($"Чтобы восстановить здоровье и ману введите - {CommandRecover}");

            string userInput = Console.ReadLine();

            switch (userInput)
            {
                case CommandAttack:
                    boss.ChangeHealth(player.DamageAttack());
                    break;

                case CommandFierBall:
                    boss.ChangeHealth(player.DamageFierBallAttack());
                    break;

                case CommandDetonation:
                    boss.ChangeHealth(player.DamageDetonation());
                    break;

                case CommandRecover:
                    player.RecoverManaAndHealth();
                    break;

                default:
                    Console.WriteLine("Введена неверная команда.");
                    break;
            }

            player.ManaRecovery();

            if (player.GiveValueOfHealth() > 0 && boss.GiveValueOfHealth() > 0)
            {
                boss.Attack(player);
            }
            else if (player.GiveValueOfHealth() <= 0)
            {
                Console.WriteLine("Вы проиграли битву.");
                Console.ReadKey();
                isWorking = false;
            }
            else if (boss.GiveValueOfHealth() <= 0)
            {
                Console.WriteLine("Вы победили противника.");
                Console.ReadKey();
                isWorking = false;
            }
            else if (player.GiveValueOfHealth() <= 0 && boss.GiveValueOfHealth() <= 0)
            {
                Console.WriteLine("Это была равная битва.");
                Console.ReadKey();
                isWorking = false;
            }

            Console.ReadKey();
            Console.Clear();
        }
    }
}