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mikesimons/clamp.rb

Created September 17, 2010 12:48
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clamp.rb
class Range
def min
first > last ? last : first
end
def max
last > first ? last : first
end
def clamp(v)
(v < min ? min : (v > max ? max : v))
end
end
@hosiawak
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if you feel dirty for patching core classes:

module Clamp
  def min
    first > last ? last : first
  end

  def max
    last > first ? last : first
  end

  def clamp(v)
    (v < min ? min : (v > max ? max : v))
  end
end

puts (0..360).extend(Clamp).clamp(370)
puts (360..0).extend(Clamp).clamp(370)
puts (360..0).extend(Clamp).clamp(-10)

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