Class: Basic101::RndFunction

Inherits:
Function show all
Defined in:
lib/basic101/rnd_function.rb

Instance Method Summary collapse

Methods inherited from Function

#check_args

Constructor Details

#initialize ⇒ RndFunction

Returns a new instance of RndFunction.



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# File 'lib/basic101/rnd_function.rb', line 5

def initialize
  @rand = 0
end

Instance Method Details

#call(runtime, args) ⇒ Object 



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# File 'lib/basic101/rnd_function.rb', line 13

def call(runtime, args)
  check_args args, [BasicNumeric]
  new_number = args.first.eval(runtime).to_f > 0
  if new_number
    @rand = runtime.rand
  end
  BasicFloat.new(@rand)
end

#name ⇒ Object 



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# File 'lib/basic101/rnd_function.rb', line 9

def name
  'RND'
end