Zoo 1.2 Walkthrough

Overview

Activity

Update the Zoo project to checkpoint 1.2.

User Story

As a developer, I want to complete the Zoo 1.2 checkpoint so the project includes the required programming concepts and behavior.

Acceptance Criteria

• All required new source files exist in the correct folders.
• Existing files contain the checkpoint changes shown in this walkthrough.
• The solution builds successfully.
• The application starts and the updated behavior can be exercised.
• Names, casing, namespaces, and member signatures match the checkpoint source.

Task List

1. Create 2 new source files.
2. Update 3 existing source files.
3. Confirm the new files are included in the project.
4. Build the solution and resolve any compiler errors.
5. Run the application and verify the new behavior.

Exact Casing Matters

Use the filenames, class names, namespaces, method names, property names, and enum values exactly as shown.

Watch Out For

Do not copy build-output folders such as bin, obj, .vs, or package caches into your working project.

Before You Begin

Start with a clean copy of Zoo 1.1 End. Rename the extracted solution folder and solution file for the current checkpoint before making code changes.

Understand the Changes

Files to create

• ZooScenario/Business Classes/BirthingRoom.cs
• ZooScenario/Business Classes/VendingMachine.cs

Files to update

• ZooScenario/Business Classes/Zoo.cs
• ZooScenario/MainWindow.xaml
• ZooScenario/MainWindow.xaml.cs

Create New Files

using System;
using System.Collections.Generic;
using System.Text;

namespace ZooScenario
{
    /// <summary>
    /// The class which is used to represent a birthing room.
    /// </summary>
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.StyleCop.CSharp.MaintainabilityRules", "SA1401:FieldsMustBePrivate", Justification = "Encapsulation not yet taught.")]
    public class BirthingRoom
    {
        /// <summary>
        /// The current temperature of the birthing room.
        /// </summary>
        public double Temperature;

        /// <summary>
        /// The mother animal which is to give birth.
        /// </summary>
        public Animal Mother;

        /// <summary>
        /// The doctor for the birthing room.
        /// </summary>
        public Employee Doctor;
    }
}

using System;
using System.Collections.Generic;
using System.Text;

namespace ZooScenario
{
    /// <summary>
    /// The class which is used to represent a vending machine.
    /// </summary>
    [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.StyleCop.CSharp.MaintainabilityRules", "SA1401:FieldsMustBePrivate", Justification = "Encapsulation not yet taught.")]
    public class VendingMachine
    {
        /// <summary>
        /// The price of food (per pound).
        /// </summary>
        public decimal FoodPricePerPound;

        /// <summary>
        /// The amount of food currently in stock (in pounds).
        /// </summary>
        public double FoodStock;

        /// <summary>
        /// The amount of money currently in the vending machine.
        /// </summary>
        public decimal MoneyBalance;
    }
}

Update Existing Files

--- 1.1/ZooScenario/Business Classes/Zoo.cs
+++ 1.2/ZooScenario/Business Classes/Zoo.cs
@@ -10,6 +10,16 @@
     [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.StyleCop.CSharp.MaintainabilityRules", "SA1401:FieldsMustBePrivate", Justification = "Encapsulation not yet taught.")]
     public class Zoo
     {
+        /// <summary>
+        /// The zoo's vending machine which allows guests to buy snacks for animals.
+        /// </summary>
+        public VendingMachine AnimalSnackMachine;
+
+        /// <summary>
+        /// The zoo's room for birthing animals.
+        /// </summary>
+        public BirthingRoom BirthArea;
+
         /// <summary>
         /// The maximum number of guests the zoo can accommodate at a given time.
         /// </summary>

--- 1.1/ZooScenario/MainWindow.xaml
+++ 1.2/ZooScenario/MainWindow.xaml
@@ -36,6 +36,7 @@
         </Separator>
         <StackPanel Grid.Row="0" Grid.Column="2" Margin="5">
             <!-- Start San Diego Zoo buttons -->
+            <Button x:Name="newSanDiegoZooButton" Content="New San Diego Zoo" Click="newSanDiegoZooButton_Click"/>
             <!-- End San Diego Zoo buttons -->
             <StackPanel.Resources>
                 <Style TargetType="{x:Type Button}">

--- 1.1/ZooScenario/MainWindow.xaml.cs
+++ 1.2/ZooScenario/MainWindow.xaml.cs
@@ -25,6 +25,11 @@
         public Zoo ComoZoo;
 
         /// <summary>
+        /// The San Diego Zoo.
+        /// </summary>
+        public Zoo SanDiegoZoo;
+
+        /// <summary>
         /// Initializes a new instance of the MainWindow class.
         /// </summary>
         public MainWindow()
@@ -40,13 +45,22 @@
         private void newComoZooButton_Click(object sender, RoutedEventArgs e)
         {
             this.ComoZoo = new Zoo();
-
+            this.ComoZoo.AnimalSnackMachine = new VendingMachine();
+            this.ComoZoo.BirthArea = new BirthingRoom();
             this.ComoZoo.Capacity = 1000;
             this.ComoZoo.FeaturedAnimal = new Animal();
             this.ComoZoo.LadiesRoom = new Restroom();
             this.ComoZoo.MensRoom = new Restroom();
             this.ComoZoo.Name = "Como Zoo";
             this.ComoZoo.TicketBooth = new Booth();
+
+            this.ComoZoo.BirthArea.Mother = this.ComoZoo.FeaturedAnimal;
+            this.ComoZoo.BirthArea.Temperature = 77.0;
+            this.ComoZoo.BirthArea.Doctor = new Employee();
+
+            this.ComoZoo.AnimalSnackMachine.FoodPricePerPound = 0.75m;
+            this.ComoZoo.AnimalSnackMachine.FoodStock = 250.0;
+            this.ComoZoo.AnimalSnackMachine.MoneyBalance = 42.75m;
 
             this.ComoZoo.FeaturedAnimal.Age = 4;
             this.ComoZoo.FeaturedAnimal.Gender = "Female";
@@ -65,6 +79,61 @@
             this.ComoZoo.TicketBooth.TicketPrice = 15.00m;
             this.ComoZoo.TicketBooth.Attendant.Name = "Sam";
             this.ComoZoo.TicketBooth.Attendant.Number = 42;
+
+            this.ComoZoo.BirthArea.Doctor.Name = "Flora";
+            this.ComoZoo.BirthArea.Doctor.Number = 98;
+        }
+
+        /// <summary>
+        /// Creates the San Diego Zoo and related objects.
+        /// </summary>
+        /// <param name="sender">The object that initiated the event.</param>
+        /// <param name="e">The event arguments for the event.</param>
+        private void newSanDiegoZooButton_Click(object sender, RoutedEventArgs e)
+        {
+            this.SanDiegoZoo = new Zoo();
+            this.SanDiegoZoo.AnimalSnackMachine = new VendingMachine();
+            this.SanDiegoZoo.BirthArea = new BirthingRoom();
+            this.SanDiegoZoo.Capacity = 3000;
+            this.SanDiegoZoo.FeaturedAnimal = new Animal();
+            this.SanDiegoZoo.LadiesRoom = new Restroom();
+            this.SanDiegoZoo.MensRoom = new Restroom();
+            this.SanDiegoZoo.Name = "San Diego Zoo";
+            this.SanDiegoZoo.TicketBooth = new Booth();
+
+            // Assign field values of the birth area.
+            this.SanDiegoZoo.BirthArea.Mother = this.SanDiegoZoo.FeaturedAnimal;
+            this.SanDiegoZoo.BirthArea.Temperature = 77.0;
+            this.SanDiegoZoo.BirthArea.Doctor = new Employee();
+
+            // Assign field values of the animal snack machine.
+            this.SanDiegoZoo.AnimalSnackMachine.FoodPricePerPound = 1.20m;
+            this.SanDiegoZoo.AnimalSnackMachine.FoodStock = 3.5;
+            this.SanDiegoZoo.AnimalSnackMachine.MoneyBalance = 56.25m;
+
+            // Assign field values of the featured animal.
+            this.SanDiegoZoo.FeaturedAnimal.Age = 5;
+            this.SanDiegoZoo.FeaturedAnimal.Gender = "Female";
+            this.SanDiegoZoo.FeaturedAnimal.IsPregnant = false;
+            this.SanDiegoZoo.FeaturedAnimal.Name = "Patti";
+            this.SanDiegoZoo.FeaturedAnimal.Type = "Platypus";
+            this.SanDiegoZoo.FeaturedAnimal.Weight = 3.27;
+
+            // Assign field values of the restrooms.
+            this.SanDiegoZoo.LadiesRoom.Capacity = 12;
+            this.SanDiegoZoo.LadiesRoom.Gender = "Female";
+            this.SanDiegoZoo.MensRoom.Capacity = 12;
+            this.SanDiegoZoo.MensRoom.Gender = "Male";
+
+            // Assign field values of the ticket booth.
+            this.SanDiegoZoo.TicketBooth.Attendant = new Employee();
+            this.SanDiegoZoo.TicketBooth.TicketPrice = 25.50m;
+            this.SanDiegoZoo.TicketBooth.Attendant.Name = "Sam";
+            this.SanDiegoZoo.TicketBooth.Attendant.Number = 42;
+
+            // Assign field values of the doctor.
+            this.SanDiegoZoo.BirthArea.Doctor.Name = "Steve";
+            this.SanDiegoZoo.BirthArea.Doctor.Number = 24;
         }
     }
 }

--- 1.1/ZooScenario/ZooScenario.csproj
+++ 1.2/ZooScenario/ZooScenario.csproj
@@ -68,9 +68,11 @@
       <SubType>Designer</SubType>
     </ApplicationDefinition>
     <Compile Include="Business Classes\Animal.cs" />
+    <Compile Include="Business Classes\BirthingRoom.cs" />
     <Compile Include="Business Classes\Booth.cs" />
     <Compile Include="Business Classes\Employee.cs" />
     <Compile Include="Business Classes\Restroom.cs" />
+    <Compile Include="Business Classes\VendingMachine.cs" />
     <Compile Include="Business Classes\Zoo.cs" />
     <Page Include="MainWindow.xaml">
       <Generator>MSBuild:Compile</Generator>

Check Your Work

1. Save all files.
2. Build the solution.
3. Resolve compiler errors before continuing.
4. Run the application.
5. Exercise the behavior associated with Zoo 1.2.
6. Compare your filenames, namespaces, signatures, and key values with the code shown above.

Summary

You completed Zoo 1.2 by creating the required files, modifying only files with meaningful source changes, and verifying the application.