title: Returning a value from a static void to a static void, that make use of public variables - some guidance please
body: <p>Just so everyone knows I have literally just started writing C#, and this is practice.</p>
  
  <p>I found a GuessTheNumberGame code on the internet and have been trying to improve the basic game so that feedback is given, and the user can change the numbers.
  I had the program working but wanted to put the 'NumberChange' module separate from the 'Code' Method.</p>
  
  <p>I have made a Main() Method inside of my 'GuessTheNumberGame' with executes the 'Code' method.
  The thing is when I go to change the number range the 'NumberChange' module won't change the values of 'Public Static int from' or 'Public static int to'; and because of this the range of the numbers remains the same.</p>
  
  <p>Code below:</p>
  
  <pre><code>using System;
  
  namespace GuessThatNumber
  {
      class GuessTheNumberGame
      {
          static void Main()
          {
              Code(from, to, new_range);
          }
  
          public static int new_range = 0;
          public static int from = 1;
          public static int to = 10;
  
           static void Code(int from, int to, int new_range)
          {
              //int from = 1;   // The range the user will guess from.
              //int to = 10;    //The range the user will guess to.
  
  
              int guessedNumber;  //This will hold the value that the user guessed.
              int Counter = 0;    //Counter is used to count the number of guesses the user makes.
              int selection = 0;  //This value is for the selection at the start of the program
             //int new_range = 0;
              bool exit = false;
  
              while (exit == false)
              {
                  Console.WriteLine("What would you like to do?");
                  Console.WriteLine("1: Alter the range of guessed numbers? The range is currently from {0} to {1}.", from, to);
                  Console.WriteLine("2: Try to guess the number?");
                  Console.WriteLine("3: Exit the program?");
                  Console.WriteLine("Please enter a number:");
                  if (int.TryParse(Console.ReadLine(), out selection))
                  {
                      if (selection == 2)
                      {
                          int randomNumber = new Random().Next(from, to);   //Generates a random number between the (from, to) variables.
                          Console.Write("The number is between {0} and {1}. ", from, to);
                          while (true)
                          {
                              Console.Write("Make a guess: ");
                              if (int.TryParse(Console.ReadLine(), out guessedNumber))
                              {
                                  if (guessedNumber == randomNumber)
                                  {
                                      Console.WriteLine("You guessed the right number!");
                                      if (Counter &lt; 2)
                                      {
                                          Console.WriteLine("You guessed the number in only 1 turn! Amazing!");
                                          Console.WriteLine(" ");
                                      }
                                      else
                                      {
                                          Console.WriteLine("You guessed " + Counter + " times.");
                                          Console.WriteLine(" ");
                                      }
                                      break;
                                  }
                                  else
                                  {
                                      Console.WriteLine("Your guess was too {0}.", (guessedNumber &gt; randomNumber) ? "high" : "low");
                                      Counter = Counter + 1;
                                  }
                              }
                              else
                              {
                                  Console.WriteLine("Input was not an integer.");
                              }
                          }
                          //Console.WriteLine();
                          //Console.WriteLine("Press any key to exit.");
                          //Console.ReadKey();
                      }
                      else if (selection == 1)
                      {
                          NumberChange(from, to, new_range);
                      }
  
                      else
                      {
                          exit = true;
                      }
                  }
              }
          }
  
          static int NumberChange(int from, int to, int new_range)
          {
              Console.WriteLine("Please enter the number that the guess will start from.");
              int.TryParse(Console.ReadLine(), out new_range);
              from = new_range;
              Console.WriteLine("Now enter the number that the guess will go to.");
              int.TryParse(Console.ReadLine(), out new_range);
              to = new_range;
              return new_range;
          }
      }
  }
  </code></pre>