Class: Circle

Inherits:
Object
  • Object
show all
Defined in:
lib/hexa/shapes/circle.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options = {}) ⇒ Circle

Constructor for the Circle object



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# File 'lib/hexa/shapes/circle.rb', line 8

def initialize(options = {})
  if options[:radius]
    @radius = options[:radius] 
    @diameter = options[:radius] * 2
  elsif options[:diameter]
    @radius = options[:diameter] / 2
    @diameter = options[:diameter]
  else
    @radius = 1
    @diameter = 2
  end
end

Instance Attribute Details

#diameter ⇒ Object

Returns the value of attribute diameter.



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# File 'lib/hexa/shapes/circle.rb', line 3

def diameter
  @diameter
end

#radius ⇒ Object

Returns the value of attribute radius.



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# File 'lib/hexa/shapes/circle.rb', line 3

def radius
  @radius
end

Class Method Details

.area(radius = 1) ⇒ Float

Same behavior as area but can be called just passing the radius



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# File 'lib/hexa/shapes/circle.rb', line 29

def self.area(radius = 1)
  Math::PI * (radius ** 2)
end

Instance Method Details

#area ⇒ Float 



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# File 'lib/hexa/shapes/circle.rb', line 22

def area
  Math::PI * (@radius ** 2)
end