using System;

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namespace OOP

{

   // Video 1 - First class

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    public class Character

    {

        int Health = 100;

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        void Hit(int damage)

        {

            Health -= damage;

        }

    }

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    // Video 2 -Access Modifiers

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    public class Character1

    {

        public int Health = 100;

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        void Hit(int damage)

        {

            Health -= damage;

        }

    }

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    // Video 4 - Properties

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    public class Character2

    {

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        void Hit(int damage)

        {

            Health -= damage;

        }

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        private int health = 100;

        public int Health

        {

            get

            {

                return health;

            }

            private set

            {

                health = value;

            }

        }

    }

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    public class Character3

    {

        public int Health { get; private set; } = 100;

        void Hit(int damage)

        {

            Health -= damage;

        }

    }

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 // Video 5 - Auto Properties

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    public class Character5

    {

        public double Health { get; private set; }

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        void Hit(int damage)

        {

            Health -= damage;

            if (Health < 0)

                Health = 0;

        } 

    }       

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// Video 6 - Overload

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    public class Calculator

    {

        public double TriangleSquare(double ab, double bc, double ac)

        {

            double p = (ab + bc + ac) / 2;

            double square = Math.Sqrt(p * (p - ab) * (p - bc) * (p - ac));

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              return square ;

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        }

    }

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// Video 11 - Params

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        public double Average2(params int[] numbers)

        {

            int sum = 0;

            int count = 0;

            foreach (int n in numbers)

            {

                sum += n;

            }

            return (double) sum / numbers.Length;

        }

​

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// Video 12 - Named Arguments

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        /*

        Example

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        {

            Calculanor.CalcTriangleSquare(ab: 10,  bc: 20,  ac:30, isRadians: true);

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        }

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        */

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// Video 13 - Out parametres

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        public bool TryDivide(double divisible, double divisor, out double result)  //last

        {

            result = 0;

            if (divisor == 0)

                return false;

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            result = divisible / divisor;

            return true;

        }

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​

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// Video 14 - Modifier Static

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        public class Character6

    {

        private static int speed = 10;

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        public int Health { get; set; } =100;

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        public void Hit(int damage)

        {

            if ( damage > Health)

                damage = Health ;

                Health -= damage;

        }

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        public int PrintSpeed()

        {

            return speed;

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        }

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        public void IncreaseSpeed()

        {

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            speed +=10;

         }

    }

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// Video 15 - Optional Parametres

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        /*

        Example

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        {

            public static double CalcTriangleSquare(double ab,  double bc,  int alpha, bool isRadians = false);

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        }

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        */

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// Video 16 -  Reference types and Value types

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public class Program

{

    public static void Main()

    {

       PointVal a;

       a.X = 3;

       a.Y = 5;

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       PointVal b = a;

       b.X = 3;

       b.Y = 5;

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       a.LogValues();

       b.LogValues();

       Console.WriteLine("After structs");

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       PointRef c = new PointRef();

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       c.X = 3;

       c.Y = 5;

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       PointRef d = c;

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       d.X = 3;

       d.Y = 5;

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       c.LogValues();

       d.LogValues();

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    }

}

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// Video 17 - Stack and Heap

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}

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