/*
 * ZorkJ - By Alan G. Labouseur
 */
import java.util.Scanner;
public class ZorkJcentralControlWithEnums
{
  // Declare (global) data type for locations.
  private static enum Location { Backyard, House, Shrubs };
  
  // Global Variables
  private static Location currentLocale = Location.Backyard;
  private static Scanner input = new Scanner(System.in);    
  private static boolean stillPlaying = true;
      
  public static void main(String [] args)
  {
    intro();
    gameLoop();
    quitGame();
  }
  
  private static void gameLoop()
  {     
     while (stillPlaying)
     {
        switch (currentLocale)
        {
           case Backyard : localeBackyard(); break;
           case House    : localeHouse();    break;
           case Shrubs   : localeShrubs();   break;
           default: System.out.println("Error.  Invalid locale:" + 
                        currentLocale + " This should never happen.");
        }
     }
  }  
  
  private static void intro()
  {
    System.out.println("Welcome to ZorkJ.");
    System.out.println(" Written by Alan G. Labouseur");
    System.out.println(" (c) 2009 - No Rights Reserved. Some rights obscured.");
    System.out.println(" Play at your own risk.");
    blankLine();
  }
  
  private static void blankLine()
  {
    System.out.println();
  }
  
  private static void localeBackyard()
  {
    // Display description.
    System.out.println("--Back yard--");
    System.out.println("It's a lazy summer morning as you sit under a tree");
    System.out.println("next to your \"owners\", Phineas and Ferb, wondering");
    System.out.println("what they're going to do that day.");
    // Interact    
    String command = new String("");
    command = getCommand(); 
    if (command.equalsIgnoreCase("e"))
    {
      currentLocale = Location.House;
    }
    else
    {
      if (command.equalsIgnoreCase("s"))
      {
        currentLocale = Location.Shrubs;
      }
      else
      {
        System.out.println("You can't go that way.");
        // Leave currentLocale unchanged.
      }
    }    
  }
  
  private static void localeHouse()
  {
    // Display description.
    System.out.println("--House--");
    System.out.println("(house)");
    // Interact
    String command = new String("");
    command = getCommand(); 
    if (command.equalsIgnoreCase("s"))
    {
      currentLocale = Location.Shrubs;
    }
    else
    {
      System.out.println("You can't go that way.");
      // Leave currentLocale unchanged.   
    }
  }
  
  private static void localeShrubs()
  {
    // Display description.
    System.out.println("--Shrubs--");
    System.out.println("(shrubs)");
    // Interact
    String command = new String("");
    command = getCommand(); 
    if (command.equalsIgnoreCase("e"))
    {
      currentLocale = Location.House;
    }
    else
    {
      System.out.println("You can't go that way.");
      // Leave currentLocale unchanged.   
    }
  }
  
  private static String getCommand()
  {
    final String PROMPT = "-]";    
    System.out.print(PROMPT);  // Prompt the user for a command.
    String command = new String("");
    command = input.nextLine();  
    // Check to see if they want to quit ...
    if (command.equalsIgnoreCase("q"))
    {
       // ... which they do, so let's quit.
       quitGame();
    }
    return command;
  }  
  
  private static void quitGame()
  {
    // Close down the input Scanner.
    input.close();
    // TODO: 1. Report Score
    //       2. Report number of turns
    // Thanks the player.
    System.out.println("Thank you for playing.");
    // Finally, just exit.
    System.exit(0);
    // TODO: implement (stillPlaying = false;)    
  }
}