Class: Xudoku::Deducer

Inherits:
Object
  • Object
show all
Includes:
Utils
Defined in:
lib/xudoku/deducer.rb

Overview

:nodoc:

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Utils

#bits_to_numbers, #guesses_from, #pick_better, #pos

Constructor Details

#initialize(board) ⇒ Deducer

Returns a new instance of Deducer.



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# File 'lib/xudoku/deducer.rb', line 10

def initialize(board)
  @board = board
  reset!
end

Instance Attribute Details

#allowed ⇒ Object

Returns the value of attribute allowed.



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# File 'lib/xudoku/deducer.rb', line 8

def allowed
  @allowed
end

#board ⇒ Object

Returns the value of attribute board.



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# File 'lib/xudoku/deducer.rb', line 8

def board
  @board
end

#count ⇒ Object

Returns the value of attribute count.



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# File 'lib/xudoku/deducer.rb', line 8

def count
  @count
end

#guess ⇒ Object

Returns the value of attribute guess.



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# File 'lib/xudoku/deducer.rb', line 8

def guess
  @guess
end

#needed ⇒ Object

Returns the value of attribute needed.



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# File 'lib/xudoku/deducer.rb', line 8

def needed
  @needed
end

#stuck ⇒ Object

Returns the value of attribute stuck.



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# File 'lib/xudoku/deducer.rb', line 8

def stuck
  @stuck
end

Instance Method Details

#deduce ⇒ Object 



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# File 'lib/xudoku/deducer.rb', line 15

def deduce
  loop do
    reset!

    return [] unless deduce_cells
    return [] unless deduce_all_axes

    @guess&.shuffle!
    return @guess if @stuck
  end
end