using System;

namespace Basic 

{

    public class Program

    {

        public class Global

        {

            public static string name;

            public static int topsize;

            public static int bottomsize;

            public static int sidesize;

            public static int area;

            public static int perimeter;

​

        }

        public static void Main()

        {

            information();

            GetName();

            menu();

​

        }

​

        public static void information()

        {

            Console.WriteLine("                  Welcome To Your Favorite Basic Geometry Program ");

        }

        public static void GetName()

        {

            Console.WriteLine("");

            Console.WriteLine(" Please input your first name ");

            Global.name = Console.ReadLine();

        }

        public static void menu()

        {

            int options;

            Console.WriteLine("      Menu ");

            Console.WriteLine(" ");

            Console.WriteLine(" 2. Draw a square ");

            Console.WriteLine(" 3. Draw a rectangle ");

            Console.WriteLine(" 4. Exit program ");

            Console.WriteLine("");

            Console.WriteLine(Global.name + " please select a number from the menu ");

            options = int.Parse(Console.ReadLine());

​

            if ((options < 2) || (options > 3))

            {

                menu();

            }

            if (options == 2)

            {

               Square();

            }

            if (options == 5)

            {

                Rectangle();

            }

            if (options == 5)

            {

               exit();

            }

​

        }

        public static void Rectangle()

        {

            Console.WriteLine(Global.name + " welcome to my rectangle maker! ");

            Console.WriteLine(" Please enter the length for me to draw! ");

            Global.topsize = int.Parse(Console.ReadLine());

            Console.WriteLine(" Please enter the width for me to draw! ");

            Global.sidesize = int.Parse(Console.ReadLine());

            Global.bottomsize = Global.topsize;

            start();

            topnum();

            top();

            sides();

            bottom();

            recMath();

            Console.ReadLine();

            menu();

        }

        public static void Square()

        {

            Console.WriteLine(Global.name + " welcome to my square maker! ");

            Console.WriteLine(" Please enter the length and the width of the square for me to draw! ");

            Global.topsize = int.Parse(Console.ReadLine());

            Global.sidesize = Global.topsize;

            Global.bottomsize = Global.topsize;

            start();

            topnum();

            top();

            sides();

            bottom();

            sqMath();

            Console.ReadLine();

            menu();

​

        }

        public static void exit()

        {

            Console.WriteLine("      Basic Geometry Program");

            Console.WriteLine("");

            Console.WriteLine(Global.name +" Thanks for using Elon Musk:the basic geometry program");

            Console.WriteLine("");

            Console.WriteLine("   Come back again soon!!!!!!");

            Console.ReadLine();

            Environment.Exit(0);

        }

        public static void topnum()

        {

            int midway = (Global.topsize / 2) + 5;

            for (int k = 1; k <= midway; k++)

            {

                Console.Write(" ");

​

            }

            Console.Write(Global.topsize);

            Console.WriteLine(" ");

            Console.Write("               ");

​

        }

        public static void recMath()

        {

            Console.WriteLine("");

            Console.WriteLine("");

            Console.WriteLine("");

            Console.WriteLine("The area for your rectangle with a length of " + Global.topsize);

            Console.WriteLine(" and a width of " + Global.sidesize);

            Global.area = Global.topsize * Global.sidesize;

            Console.WriteLine("is = " + Global.area);

            Global.perimeter = 2 * Global.topsize + 2 * Global.sidesize;

            Console.WriteLine("and the perimeter is" + Global.perimeter);

​

        }

        static void sqMath()

        {

            Console.WriteLine("");

            Console.WriteLine("");

            Console.WriteLine("");

            Console.WriteLine("The area for your square with a length and width of" + Global.topsize);

            Global.area = Global.topsize * Global.sidesize;

            Console.WriteLine("is = " + Global.area);

            Global.perimeter = 2 * Global.topsize + 2 * Global.sidesize;

            Console.WriteLine("and the perimeter is = " + Global.perimeter);

​

        }

        public static void top()

        {

            Console.Write("+");

            for (int i = 1; i <= Global.topsize; i++)

            {

                Console.Write("-");

            }

            Console.Write("+");

            Console.WriteLine();

            Console.Write("                    ");

​

        }

        public static void bottom()

        {

            Console.Write("+");

            for (int i = 1; i <= Global.topsize; i++)

            {

                Console.Write("-");

            }

            Console.Write('+');

            Console.WriteLine("                     ");

​

        }

        public static void start()

        {

            Console.Clear();

            for (int i = 1; i <= 10; i++)

            {

                Console.Write(" ");

            }

            Console.Write("                     ");

        }

        public static void sides()

        {

            int midway = (Global.sidesize / 2) + 1;

            for (int i = 1; i <= Global.sidesize; i++)

            {

                Console.Write("|");

                for (int n = 1; n <= Global.topsize; n++)

                {

                    Console.Write(" ");

                }

                Console.Write("|");

                if (i == midway)

                {

                    Console.Write(" " + Global.sidesize);

                }

                Console.WriteLine("");

                Console.Write("                     ");

            }

​

        }

​

    }

}