Class: CIAT::TrafficLight

Inherits:
Object
  • Object
show all
Defined in:
lib/ciat/traffic_light.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(setting = :unset) ⇒ TrafficLight

:nodoc:



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# File 'lib/ciat/traffic_light.rb', line 4

def initialize(setting = :unset) #:nodoc:
  @setting = setting
end

Instance Attribute Details

#setting ⇒ Object (readonly)

Returns the value of attribute setting.



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# File 'lib/ciat/traffic_light.rb', line 2

def setting
  @setting
end

Instance Method Details

#color ⇒ Object 



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# File 'lib/ciat/traffic_light.rb', line 36

def color
  @setting.to_s
end

#green! ⇒ Object

:nodoc:



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# File 'lib/ciat/traffic_light.rb', line 16

def green! #:nodoc:
  @setting = :green unless yellow?
end

#green? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ciat/traffic_light.rb', line 12

def green?
  @setting == :green
end

#red! ⇒ Object

:nodoc:



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# File 'lib/ciat/traffic_light.rb', line 32

def red! #:nodoc:
  @setting = :red unless yellow?
end

#red? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ciat/traffic_light.rb', line 28

def red?
  @setting == :red
end

#unset? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ciat/traffic_light.rb', line 8

def unset?
  @setting == :unset
end

#yellow! ⇒ Object

:nodoc:



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# File 'lib/ciat/traffic_light.rb', line 24

def yellow! #:nodoc:
  @setting = :yellow
end

#yellow? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/ciat/traffic_light.rb', line 20

def yellow?
  @setting == :yellow
end