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Versions: 9
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Contents
class Direction
attr_writer :adjective, :adverb, :reverse
# @return [String]
attr_accessor :name
def initialize **args
args.each { |key, value|
send "#{key}=", value
}
end
# @return [String]
def adjective
@adjective || @name
end
# @return [String]
def adverb
@adverb || @name
end
# @return [String]
def synonyms
"#{adjective} #{adverb}"
end
def reverse
Direction.find @reverse
end
def to_s
@name
end
class << self
def compass
@compass ||= {
north: Direction.new(name: 'north', adjective: 'northern', reverse: :south),
south: Direction.new(name: 'south', adjective: 'southern', reverse: :north),
west: Direction.new(name: 'west', adjective: 'western', reverse: :east),
east: Direction.new(name: 'east', adjective: 'eastern', reverse: :west),
northwest: Direction.new(name: 'northwest', adjective: 'northwestern', reverse: :southeast),
southeast: Direction.new(name: 'southeast', adjective: 'southeastern', reverse: :northwest),
northeast: Direction.new(name: 'northeast', adjective: 'northeastern', reverse: :southwest),
southwest: Direction.new(name: 'southwest', adjective: 'southwestern', reverse: :northeast),
up: Direction.new(name: 'up', adjective: 'upwards', reverse: :down),
down: Direction.new(name: 'down', adjective: 'downwards', reverse: :up)
}
end
# @param dir [Direction, String]
# @return [Direction, nil]
def find(dir)
return dir if dir.is_a?(Direction)
compass[dir.to_s.downcase.to_sym]
end
end
end
Version data entries
9 entries across 9 versions & 1 rubygems