ToastR 2.0 Example for Introduction to Programming showing classes, objects, and other concepts

Program.cs

using System;

/*
using static System.Console;
allows access to properties and methods
of the static class Console without having 
to include the name of the class
instead of: Console.ReadKey();
we can use: ReadKey();
*/
using static System.Console;

namespace Toastr
{
    class Program
    {
        static void Main()
        {
            //start up the application welcome
            Welcome();

            //ask player what they want to order
            Order.TakeOrder();

            //print the order
            Order.Print();

            //keep window open
            //we'll learn about other options soon :)
            ReadKey();
        }

        static private void Welcome()
        {
            Title = "Toastr";

            //the @ symbol allows multi-line strings
            //helpful for ASCII design

            //changeing foreground color
            ForegroundColor = ConsoleColor.DarkYellow;
            WriteLine(@"
   _        _        _        _        _        _ 
(     )) (     )) (     )) (     )) (     )) (     )) 
| o.o || | o.o || | o.o || | o.o || | o.o || | o.o ||
|  -  || |  -  || |  -  || |  -  || |  -  || |  -  ||
'-----'  '-----'  '-----'  '-----'  '-----'  '-----'
           _____             _   _____ 
          |_   _|___ ___ ___| |_| __  |
            | | | . | .'|_ -|  _|    -|
            |_| |___|__,|___|_| |__|__|
                             
");
            WriteLine("          Welcome to Toastr. We got toast.\n\n");
            WriteLine("              Press any key to start...");
            //reset to default foreground and background
            ResetColor();

            //Hold for key press
            ReadKey();
            //Clear console screen
            Clear();
        }
    }
    class Item
    {
        public string Name;
        public double Calories;
        public double Price;
        public int Available;

        public Item()
        {
            //default constructor has no parameters
        }
        public Item(string name, double calories, double price)
        {
            //constructor is overloaded
            //this variation takes three parameters 
            Name = name;
            Calories = calories;
            Price = price;
            Available = 10;
        }
        public void Scream()
        {
            WriteLine(Name + " screams!");
        }
    }

    class Order
    {
        public static string Name;
        public static Item[] Items = new Item[2];
        public static int[] Quantity = { 0, 0 };
        public static double Total;

        static Item fireball = new Item("Fireball", 12.69, 2);
        static Item cakecheese = new Item("CakeCheese", 2000, 30);

        public static void Print()
        {
            WriteLine("\n\t====================");
            WriteLine("\t" + Name + "'s order:");
           
            WriteLine("\t" + Quantity[0] + " " + Items[0].Name + ": $" + (Quantity[0] * Items[0].Price));
            WriteLine("\t" + Quantity[1] + " " + Items[1].Name + ": $" + (Quantity[1] * Items[1].Price));
            
            Total = (Quantity[0] * Items[0].Price) + (Quantity[1] * Items[1].Price);
            WriteLine("\t" + "Your total is $" + Total);
            WriteLine("\t====================\n");


            //class request :)

            //the double pipe || is an OR
            //we can see if anything was bought by asking if the quantity
            //of the first item is greater than zero
            //OR if the second is greater than zero

            //this is just one possible way!
            //for example, we could also have used
            //if ((Quantity[0]+Quantity[1]) > 0)
            //can you think of other options?

            if (Quantity[0] > 0 || Quantity[1] > 0)
            {
                Write("You take a bite of a delicious looking ");
                //example of a nested if statement
                if (Quantity[0] > 0)
                {
                    Write(Items[0].Name + "... \n");
                    ForegroundColor = ConsoleColor.Red;
                    Items[0].Scream();
                }
                else
                {
                    WriteLine(Items[1].Name + "... \n");
                    ForegroundColor = ConsoleColor.Magenta;
                    Items[1].Scream();
                }
            }
            else
            { WriteLine("You seem a bit hungry. Maybe you should have gotten an item from the bakery!"); }
        }

        public static void TakeOrder()
        {
            string input = "";
            Write("What is your name? ");
            Name = ReadLine();
            WriteLine("What would you like to order? Today we have:");
            WriteLine("a)" + fireball.Name + "($" + fireball.Price + ")");
            WriteLine("b)" + cakecheese.Name + "($" + cakecheese.Price + ")");
            Write("Please enter a or b: ");
            input = ReadLine();
            if (input == "a")
            {
                Items[0] = fireball;
                Items[1] = cakecheese;
                Write("Excellent, " + Name + "! We pride ourselves on our " + fireball.Name + ". How many would you like? ");
            }
            else
            {
                Items[0] = cakecheese;
                Items[1] = fireball;
                Write("Good choice " + Name + ". " + cakecheese.Name + " is quite delicious. How many would you like? ");
            }
            //ReadLine always reads in as a string
            //We want to store a number, so we are using Convert.ToInt32(x);
            //where x in the parantheses is whatever we want to convert. 
            //we are going to convert what someone types in (via ReadLine())
            //so we can put the ReadLine() method call directly inside the parantheses
            //and pass that as an argument to the ToInt32() method
            Quantity[0] = Convert.ToInt32(ReadLine());

            if (Quantity[0] > 0)
            {
                Write(Name + ", your order so far is " + Quantity[0] + " of our world-famous " + Items[0].Name + ". Would you also like " + Items[1].Name + "? (enter yes or no) ");
            }
            else
            {
                Write("Alright, no " + Items[0].Name + ". Would you like " + Items[1].Name + "? (enter yes or no) ");
            }

            input = ReadLine();

            //ToLower() transforms the string into all lowercase
            //The player can type any form of yes: Yes, yEs, YES, etc.
            if (input.ToLower() == "yes")
            {
                Write("I knew you had excellent taste. How many would you like? ");
                Quantity[1] = Convert.ToInt32(Console.ReadLine());
            }   
        }

    }

    
}