Class: LetterPressIsNotAsGoodAsBoggle::BoardTraverser

Inherits:
Object
  • Object
show all
Defined in:
lib/letter_press_is_not_as_good_as_boggle/board_traverser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(characters) ⇒ BoardTraverser

Returns a new instance of BoardTraverser.



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# File 'lib/letter_press_is_not_as_good_as_boggle/board_traverser.rb', line 6

def initialize(characters)
  self.characters = characters
end

Instance Attribute Details

#characters ⇒ Object

Returns the value of attribute characters.



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# File 'lib/letter_press_is_not_as_good_as_boggle/board_traverser.rb', line 4

def characters
  @characters
end

Instance Method Details

#each_with_recur(&block) ⇒ Object 



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# File 'lib/letter_press_is_not_as_good_as_boggle/board_traverser.rb', line 10

def each_with_recur(&block)
  recursive_each_with_recur "", [], block
end

#recursive_each_with_recur(current, path, block) ⇒ Object 



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# File 'lib/letter_press_is_not_as_good_as_boggle/board_traverser.rb', line 14

def recursive_each_with_recur(current, path, block)
  characters.each do |char|
    next if path.any? { |path_char| path_char.equal? char }
    new_current = current + char
    path.push char
    recurser = lambda { recursive_each_with_recur new_current, path, block }
    block.call new_current, char, recurser
    path.pop
  end
end