Class: SudokuResult

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/sudoku_result.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(depth) ⇒ SudokuResult

Returns a new instance of SudokuResult.



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

def initialize depth
  @results = []
  @depth = depth
  @forks = 0
end

Instance Attribute Details

#depth ⇒ Object (readonly)

Returns the value of attribute depth.



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# File 'lib/sudoku_result.rb', line 9

def depth
  @depth
end

#forks ⇒ Object (readonly)

Returns the value of attribute forks.



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# File 'lib/sudoku_result.rb', line 9

def forks
  @forks
end

Instance Method Details

#<<(sudoku) ⇒ Object 



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

def << sudoku
  @results << sudoku
  self
end

#correct? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sudoku_result.rb', line 26

def correct?
  @results.count == 1
end

#each(&block) ⇒ Object 



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

def each &block
  @results.each &block
end

#many_solutions? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sudoku_result.rb', line 30

def many_solutions?
  @results.count > 1
end

#merge(other) ⇒ Object 



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# File 'lib/sudoku_result.rb', line 38

def merge other
  other.each do |sudoku|
    self.<< sudoku
  end
  @depth = [@depth, other.depth].max
  @forks += other.forks.succ
end

#to_s ⇒ Object 



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

def to_s
  @results.empty? ? '' : @results.first.to_s
end