Time for action – the MapSquare class

1. Add a new class called MapSquare to the Tile Engine project.

2. Modify the declaration of the MapSquare class by adding the <Serializable()> attribute before the class declaration. The class declaration should read:

   <Serializable()> Public Class MapSquare

3. Add the declarations region to the MapSquare class:

   #Region "Declarations"
     Public LayerTiles(3) As Integer
     Public CodeValue As String = "
     Public Passable As Boolean = True
   #End Region

4. Add a constructor to the MapSquare class:

   #Region "Constructor"
     Public Sub New(
       background As Integer,
       interactive As Integer,
       foreground As Integer,
       code As String,
       passable As Boolean)
   
       LayerTiles(0) = background
       LayerTiles(1) = interactive
       LayerTiles(2) = foreground
       CodeValue = code
       Me.Passable = passable
     End Sub
   #End Region

5. Add the TogglePassable() method to the MapSquare class:

   #Region "Public Methods"
     Public Sub TogglePassable()
       Passable = Not Passable
     End...