Simple Ruby Text Adventure

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# Ultra simple Ruby Text Adventure!
# By Peter Cooper

class Location
        attr_accessor :name, :description, :west, :east, :south, :north

        def initialize(params)
                @name = params[:name]
                @description = params[:description]
        end

        # We have to create our own setter methods to do the mirrored east/west north/south relationships
        def west=(loc)
                @west = loc
                @west.east = self unless @west.east
        end

        def east=(loc)
                @east = loc
                @east.west = self unless @east.west
        end

        def south=(loc)
                @south = loc
                @south.north = self unless @south.north
        end

        def north=(loc)
                @north = loc
                @north.south = self unless @north.south
        end
end



# Create a location
main_room = Location.new( :name => "Central Room" )

# Put a location to the west of the original location
main_room.west = Location.new( :name => "West Room" )

# And to the east..
main_room.east = Location.new( :name => "East Room" )

# Tack some rooms onto the west side
west_room = main_room.west
west_room.north = Location.new( :name => "The North of the West Room" )
west_room.north.north = Location.new( :name => "The Really Far North Room" )


# Now the game logic really begins!

current_room = main_room

catch :end_of_game do
        loop do
                puts "You are in #{current_room.name}. Which direction?"
                instruction = gets
                next_room = case instruction.chomp
                        when "north"
                                current_room.north
                        when "south"
                                current_room.south
                        when "west"
                                current_room.west
                        when "east"
                                current_room.east
                        when "exit"
                                throw :end_of_game
                end
                if next_room
                        current_room = next_room
                else
                        puts "You can't go that way!"
                end
        end
end

puts "Bye bye!"

Tags:
• adventure
• Ruby
• rubyadventure