MAP_WIDTH  = 15  # The width of the map.
MAP_HEIGHT = 15  # The height of the map.
 
# Basic sector type.
class DungeonSector
  attr_accessor :passable, :view, :type
  def initialize
    @passable = true   # Can you walk across this sector?
    @view     = " "    # How the sector is displayed.
  end
end
 
# A floor sector
class FloorSector < DungeonSector
  def initialize(type=:cement)
    @type     = type   # A generic type.
    @view     = case type
    when :cement
      "."
    end
  end
end
 
# A wall sector
class WallSector < DungeonSector
  def initialize(type=:cement)
    @passable = false
    @type     = type
    @view     = case type
    when :door
      "$"
    when :cement
      "#"
    end
  end
end
 
# The dungeon structure.
class Dungeon
  attr_accessor :map, :name, :level
  def initialize
    @map   = Array.new(MAP_WIDTH) { Array.new(MAP_HEIGHT)}    # A 2D Array
    @name  = "New Dungeon"    # The name of the dungeon.
    MAP_HEIGHT.times do |y|
      MAP_WIDTH.times do |x|
        @map[x][y] = FloorSector.new
      end
    end
  end
 
  def view
    buf = String.new     # A buffer to hold the string.
    # Iterates through the 2 dimensional array "map" and dumps the "view"
    # of each sector, in order, into the buffer.
    15.times do |y|
      buf << "\r\n" if y > 0
      15.times do |x|
        buf << @map[x][y].view
      end
    end
    return buf  # Return the string created from the map.
  end
end