game_board.rb

		# The game board layout, consisting of an array of Squares.
		BOARD = [
			Square.new(
				name: 'GO',
				action: Proc.new { |game, owner, player, property|
					Transaction.new(from: game.bank, to: player, reason: 'landing on go', amount: game.go_amount)
				}
			),
			
			BasicProperty.new(
				name: 'Old Kent Road',
				rent: [ 2, 10, 30, 90, 160, 250 ],
				house_cost: 50,
				hotel_cost: 50,
				mortgage_value: 30,
				value: 60,
				set: :brown,
			),

			CommunityChest.new(
				name: 'Community Chest 1',
				display_name: 'Community Chest',
			),

			BasicProperty.new(
				name: 'Whitechapel Road',
				rent: [ 4, 20, 60, 180, 320, 450 ],
				house_cost: 50,
				hotel_cost: 50,
				mortgage_value: 30,
				value: 60,
				set: :brown,
			)
      
      ...