Class: CharPool

Inherits:
Object
  • Object
show all
Defined in:
lib/char_pool.rb,
lib/char_pool/version.rb

Constant Summary collapse

VERSION = 
"1.0.2"

Instance Method Summary collapse

Constructor Details

#initialize(char_pool) ⇒ CharPool

Returns a new instance of CharPool.

Raises:

  • (ArgumentError) 


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# File 'lib/char_pool.rb', line 4

def initialize(char_pool)
  raise(ArgumentError, 'Pool should be array') unless char_pool.is_a?(Array)
  raise(ArgumentError, 'Pool cannot be empty') if char_pool.empty?

  @char_pool = char_pool.uniq.map &:to_s
end

Instance Method Details

#index(string) ⇒ Object 



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# File 'lib/char_pool.rb', line 34

def index(string)
  decode(string)
end

#index_at(number) ⇒ Object 



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# File 'lib/char_pool.rb', line 29

def index_at(number)
  encode(number).map{|i| @char_pool[i]}
                .join
end

#next ⇒ Object 



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# File 'lib/char_pool.rb', line 21

def next
  @current_index = 0 and return print if @current_index.nil?

  @current_index += 1

  print
end

#print ⇒ Object 



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# File 'lib/char_pool.rb', line 17

def print
  index_at @current_index
end

#start(current = @char_pool.first) ⇒ Object 



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# File 'lib/char_pool.rb', line 11

def start(current = @char_pool.first)
  @current_index = index(current)

  current
end