FightWithBoss

    internal class Program
    {
        static void Main(string[] args)
        {
            const string MagicFireballCommand = "Fireball";
            const string MagicHealthRegenCommand = "Regen";
            const string NormalPunchCommand = "Punch";
            const string MagicBangCommand = "Boom";

            Random random = new Random();

            int minPlayerDamage = 1;
            int maxPlayerDamage = 20;
            int playerDamage;
            int minStartPlayerHealth = 50;
            int maxStartPlayerHealth = 100;
            int minManaPlayer = 10;
            int maxManaPlayer = 50;
            int manaPlayerRegen = 2;
            float playerHealth = random.Next(minStartPlayerHealth, maxStartPlayerHealth);

            int minEnemyDamage = 2;
            int maxEnemyDamage = 30;
            int enemyDamage;
            int minStartEnemyHealth = 80;
            int maxStartEnemyHealth = 200;
            int enemyHealth = random.Next(minStartEnemyHealth, maxStartEnemyHealth);

            int fireballDamage = 20;
            int quantityRegenHealth = 35;
            int bangAttackDamage = 50;
            bool isFierballAttackUsed = false;

            int minNumberForCriticalDamage = 1;
            int maxNumberForCriticalDamage = 5;
            int minCoefficentCriticalDamage = 2;
            int maxCoefficentCriticalDamage = 4;
            int coefficentCriticalDamage;
            int probablyCriticalDamage;
            int needNumberForCriticalDamage;

            while (playerHealth > 0 && enemyHealth > 0)
            {
                string? userInput;
                int quantityManaForMagicFireball = 3;
                int quantityManaForMagicHealthRegen = 5;
                int quantityManaForBang = 6;
                int coefficentSplitDamage = 2;

                probablyCriticalDamage = random.Next(minNumberForCriticalDamage, maxNumberForCriticalDamage);
                needNumberForCriticalDamage = random.Next(minNumberForCriticalDamage, maxNumberForCriticalDamage);
                coefficentCriticalDamage = random.Next(minCoefficentCriticalDamage, maxCoefficentCriticalDamage);
                playerDamage = random.Next(minPlayerDamage, maxPlayerDamage);
                enemyDamage = random.Next(minEnemyDamage, maxEnemyDamage);

                Console.WriteLine($"{playerHealth} - здоровья игрока. {minManaPlayer} - мана игрока.");
                Console.WriteLine($"{enemyHealth} - здоровья босса.");
                Console.WriteLine();

                Console.WriteLine($"У вас есть несколько комнд для боя с боссом:\n" +
                    $"{NormalPunchCommand} - нанести обычный удар.\n" +
                    $"{MagicFireballCommand} - удар огненным шаром. Необходимо {quantityManaForMagicFireball} ед маны.\n" +
                    $"{MagicBangCommand} - произвести взрыв. Необходимо {quantityManaForBang} маны и воспользоваться огненным ударом.\n" +
                    $"{MagicHealthRegenCommand} - восстановить {quantityRegenHealth} жизней. Необходимо {quantityManaForMagicHealthRegen} маны\n");
                Console.WriteLine();

                Console.Write("Введите команду: ");
                userInput = Console.ReadLine();

                switch (userInput)
                {
                    case NormalPunchCommand:
                        if (probablyCriticalDamage == needNumberForCriticalDamage)
                        {
                            playerDamage *= coefficentCriticalDamage;
                            enemyHealth -= playerDamage;
                        }
                        else
                        {
                            enemyHealth -= playerDamage;
                        }

                        break;

                    case MagicFireballCommand:
                        if (minManaPlayer >= quantityManaForMagicFireball)
                        {
                            minManaPlayer -= quantityManaForMagicFireball;
                            enemyHealth -= fireballDamage;
                            isFierballAttackUsed = true;
                        }
                        else
                        {
                            if (probablyCriticalDamage == needNumberForCriticalDamage)
                            {
                                playerDamage *= coefficentCriticalDamage;
                                enemyHealth -= playerDamage;
                            }
                            else
                            {
                                enemyHealth -= playerDamage;
                            }
                        }

                        break;

                    case MagicBangCommand:
                        if (minManaPlayer >= quantityManaForBang && isFierballAttackUsed == true)
                        {
                            minManaPlayer -= quantityManaForBang;
                            enemyHealth -= bangAttackDamage;
                            isFierballAttackUsed = false;
                        }
                        else
                        {
                            if (probablyCriticalDamage == needNumberForCriticalDamage)
                            {
                                playerDamage *= coefficentCriticalDamage;
                                enemyHealth -= playerDamage;
                            }
                            else
                            {
                                enemyHealth -= playerDamage;
                            }
                        }

                        break;

                    case MagicHealthRegenCommand:
                        if (minManaPlayer >= quantityManaForMagicHealthRegen)
                        {
                            playerHealth += quantityRegenHealth;
                            minManaPlayer -= quantityManaForMagicHealthRegen;

                            if (playerHealth > maxStartPlayerHealth)
                            {
                                playerHealth = maxStartPlayerHealth;
                            }
                        }
                        else
                        {
                            if (probablyCriticalDamage == needNumberForCriticalDamage)
                            {
                                playerDamage *= coefficentCriticalDamage;
                                enemyHealth -= playerDamage;
                            }
                            else
                            {
                                enemyHealth -= playerDamage;
                            }
                        }

                        break;

                    default:
                        Console.WriteLine("Вы промахнулись и нанесли 0 единиц урона.\nНажмите любую клавишу...");
                        Console.ReadKey();

                        break;
                }

                if (minManaPlayer > maxManaPlayer)
                {
                    minManaPlayer = maxManaPlayer;
                }

                if (playerHealth > maxStartPlayerHealth)
                {
                    playerHealth = maxStartPlayerHealth;
                }

                if (probablyCriticalDamage == needNumberForCriticalDamage)
                {
                    enemyDamage *= coefficentCriticalDamage;
                    playerHealth -= enemyDamage;
                }
                else
                {
                    playerHealth -= enemyDamage;
                }

                minManaPlayer += manaPlayerRegen;

                Console.Clear();
            }

            if (playerHealth <= 0 && enemyHealth > 0)
            {
                Console.WriteLine($"Босс победил.\n" +
                    $"Ваши жизни {playerHealth}\n" +
                    $"Жизни противника: {enemyHealth}\n");
            }
            else if (playerHealth > 0 && enemyHealth <= 0)
            {
                Console.WriteLine($"Вы победили!\n" +
                 $"Ваши жизни {playerHealth}\n" +
                $"Жизни противника: {enemyHealth}\n");
            }
            else if (playerHealth <= 0 && enemyHealth <= 0)
            {
                Console.WriteLine($"Ничья. Оба мертвы.\n" +
                 $"Ваши жизни {playerHealth}\n" +
                $"Жизни противника: {enemyHealth}\n");
            }

            Console.ReadKey();
        }
    }
}