Class: Numeron::Calculator

Inherits:
Object
  • Object
show all
Defined in:
lib/numeron/calculator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(card_size = 3) ⇒ Calculator

Returns a new instance of Calculator.



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# File 'lib/numeron/calculator.rb', line 7

def initialize(card_size = 3)
  @histories = []
  @mays = [(0..9).to_a, (0..9).to_a, (0..9).to_a]
  @possibilities = nil
end

Instance Attribute Details

#histories ⇒ Object

Returns the value of attribute histories.



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# File 'lib/numeron/calculator.rb', line 5

def histories
  @histories
end

#mays ⇒ Object

Returns the value of attribute mays.



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# File 'lib/numeron/calculator.rb', line 5

def mays
  @mays
end

#possibilities ⇒ Object

Returns the value of attribute possibilities.



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# File 'lib/numeron/calculator.rb', line 5

def possibilities
  @possibilities
end

Instance Method Details

#input(attack, eat, bite) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 13

def input(attack, eat, bite)
  attack = attack.split(//).map(&:to_i)
  eat = eat.to_i
  bite = bite.to_i
  @histories << {attack: attack, eat: eat, bite: bite}

  if eat == 0 && bite == 0
    zero_eat_zero_bite(attack)
  elsif eat == 0 && bite == 3
    zero_eat_three_bite(attack)
  elsif eat == 0 && bite == 2
    zero_eat_two_bite(attack)
  elsif eat == 0 && bite == 1
    zero_eat_one_bite(attack)
  elsif eat == 1 && bite == 2
    one_eat_two_bite(attack)
  elsif eat == 1 && bite == 1
    one_eat_one_bite(attack)
  elsif eat == 1 && bite == 0
    one_eat_zero_bite(attack)
  elsif eat == 2 && bite == 0
    two_eat_zero_bite(attack)
  else
    return false
  end
  return true
end

#one_eat_one_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 161

def one_eat_one_bite(attack)
  list = []
  (@mays[2] - attack).each do |f|
    list << validation(attack[0], attack[2], f)
  end
  (@mays[1] - attack).each do |f|
    list << validation(attack[0], f, attack[1])
  end
  # 2桁目があっている
  (@mays[2] - attack).each do |f|
    list << validation(attack[2], attack[1], f)
  end
  (@mays[0] - attack).each do |f|
    list << validation(f, attack[1], attack[0])
  end
  # 3桁目があっている
  (@mays[0] - attack).each do |f|
    list << validation(f, attack[0], attack[2])
  end
  (@mays[1] - attack).each do |f|
    list << validation(attack[1], f, attack[2])
  end
  update_possibilities(list)
end

#one_eat_or_one_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 251

def one_eat_or_one_bite(attack)
  list = []
  # attack[0] - attack[3]が一桁目に含まれている
  (@mays[1] - attack).each do |j|
    (@mays[2] - attack).each do |k|
      next if j == k
      list << validation(attack[0], j, k)
      list << validation(attack[1], j, k)
      list << validation(attack[2], j, k)
    end
  end
  (@mays[0] - attack).each do |i|
    # attack[0..3]が2桁目に含まれている
    (@mays[2] - attack).each do |k|
      next if i == k
      list << validation(i, attack[0], k)
      list << validation(i, attack[1], k)
      list << validation(i, attack[2], k)
    end
    # attack[0..3]が3桁目に含まれている
    (@mays[1] - attack).each do |j|
      next if i == j
      list << validation(i, j, attack[0])
      list << validation(i, j, attack[1])
      list << validation(i, j, attack[2])
    end
  end
  update_possibilities(list)
end

#one_eat_two_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 186

def one_eat_two_bite(attack)
  # attack以外の可能性がなくなるので、積
  @mays[0] = @mays[0] & attack
  @mays[1] = @mays[1] & attack
  @mays[2] = @mays[2] & attack
  list = [
    validation(attack[0], attack[2], attack[1]),
    validation(attack[2], attack[1], attack[0]),
    validation(attack[1], attack[0], attack[2])
  ].compact
  update_possibilities(list)
end

#one_eat_zero_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 133

def one_eat_zero_bite(attack)
  list = []
  # 先頭eat
  (@mays[1] - attack).each do |j|
    (@mays[2] - attack).each do |k|
      next if j == k
      list << validation(attack[0], j, k)
    end
  end

  # 真ん中eat
  (@mays[0] - attack).each do |i|
    (@mays[2] - attack).each do |k|
      next if i == k
      list << validation(i, attack[1], k)
    end
  end

  # 末尾eat
  (@mays[0] - attack).each do |i|
    (@mays[1] - attack).each do |j|
      next if i == j
      list << validation(i, j, attack[2])
    end
  end
  update_possibilities(list)
end

#shuffle ⇒ Object

シャッフル



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# File 'lib/numeron/calculator.rb', line 226

def shuffle
  @mays[0] = @mays[0] | @mays[1] | @mays[2]
  @mays[1] = @mays[0] | @mays[1] | @mays[2]
  @mays[2] = @mays[0] | @mays[1] | @mays[2]
  list = []
  @mays[0].each do |i|
    @mays[1].each do |j|
      next if i == j
      @mays[2].each do |k|
        next if i == k || j == k
        list << validation(i, j, k)
      end
    end
  end
  @possibilities = list.compact
  @histories.each do |history|
    eat_and_bite = history[:eat] + history[:bite]
    if eat_and_bite == 1
      one_eat_or_one_bite(history[:attack])
    elsif eat_and_bite == 2
      two_eat_or_two_bite(history[:attack])
    end
  end
end

#two_eat_or_two_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 281

def two_eat_or_two_bite(attack)
  list = []
  # 末尾が不明
  (@mays[2] - attack).each do |k|
    list << validation(attack[0], attack[1], k)
    list << validation(attack[0], attack[2], k)
    list << validation(attack[1], attack[0], k)
    list << validation(attack[1], attack[2], k)
    list << validation(attack[2], attack[0], k)
    list << validation(attack[2], attack[1], k)
  end

  # 真ん中が不明
  (@mays[1] - attack).each do |j|
    list << validation(attack[0], j, attack[1])
    list << validation(attack[0], j, attack[2])
    list << validation(attack[1], j, attack[0])
    list << validation(attack[1], j, attack[2])
    list << validation(attack[2], j, attack[0])
    list << validation(attack[2], j, attack[1])
  end

  # 先頭が不明
  (@mays[0] - attack).each do |i|
    list << validation(i, attack[0], attack[1])
    list << validation(i, attack[0], attack[2])
    list << validation(i, attack[1], attack[0])
    list << validation(i, attack[1], attack[2])
    list << validation(i, attack[2], attack[0])
    list << validation(i, attack[2], attack[1])
  end
  update_possibilities(list)
end

#two_eat_zero_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 199

def two_eat_zero_bite(attack)
  # 先頭2つがeat
  list = []
  (@mays[2] - attack).each do |k|
    list << validation(attack[0], attack[1], k)
  end
  # 先頭、末尾がeat
  (@mays[1] - attack).each do |j|
    list << validation(attack[0], j, attack[2])
  end
  # 真ん中、末尾がeat
  (@mays[0] - attack).each do |i|
    list << validation(i ,attack[1], attack[2])
  end
  update_possibilities(list)
end

#update_possibilities(possibilities) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 315

def update_possibilities(possibilities)
  possibilities.compact!
  @possibilities = @possibilities.nil? ? possibilities : possibilities & @possibilities
end

#validation(i, j, k) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 216

def validation(i, j, k)
  return nil if i == j || i == k || j == k
  if @mays[0].include?(i) && @mays[1].include?(j) && @mays[2].include?(k)
    return i.to_s + j.to_s + k.to_s
  else
    return nil
  end
end

#zero_eat_one_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 59

def zero_eat_one_bite(attack)
  # 各桁のeatの可能性がなくなる
  @mays[0] = @mays[0] - [attack[0]]
  @mays[1] = @mays[1] - [attack[1]]
  @mays[2] = @mays[2] - [attack[2]]

  list = []
  (@mays[0] - attack).each do |i|
    (@mays[1] - attack).each do |j|
      next if i == j
      list << validation(i, j, attack[0]) if attack[0] != i || attack[0] != j
      list << validation(i, j, attack[1]) if attack[1] != i || attack[1] != j
    end
  end

  (@mays[0] - attack).each do |i|
    (@mays[2] - attack).each do |k|
      next if i == k
      list << validation(i, attack[0], k) if attack[0] != i || attack[0] != j
      list << validation(i, attack[2], k) if attack[1] != i || attack[1] != j
    end
  end

  (@mays[1] - attack).each do |j|
    (@mays[2] - attack).each do |k|
      next if j == k
      list << validation(attack[1], j, k) if attack[1] != j || attack[1] != k
      list << validation(attack[2], j, k) if attack[2] != j || attack[2] != k
    end
  end
  update_possibilities(list)
end

#zero_eat_three_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 121

def zero_eat_three_bite(attack)
  # 各桁の可能性が2つに絞られる
  @mays[0] = @mays[0] & [attack[1], attack[2]]
  @mays[1] = @mays[1] & [attack[0], attack[2]]
  @mays[2] = @mays[2] & [attack[0], attack[1]]
  list = [
    validation(attack[1], attack[2], attack[0]),
    validation(attack[2], attack[0], attack[1])
  ].compact
  update_possibilities(list)
end

#zero_eat_two_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 92

def zero_eat_two_bite(attack)
  @mays[0] = @mays[0] - [attack[0]]
  @mays[1] = @mays[1] - [attack[1]]
  @mays[2] = @mays[2] - [attack[2]]
  list = []

  # 先頭不明
  (@mays[0] - attack).each do |f|
    list << validation(f, attack[0], attack[1])
    list << validation(f, attack[2], attack[0])
    list << validation(f, attack[2], attack[1])
  end

  # 中央不明
  (@mays[1] - attack).each do |f|
    list << validation(attack[1], f, attack[0])
    list << validation(attack[2], f, attack[0])
    list << validation(attack[2], f, attack[1])
  end

  # 末尾不明
  (@mays[2] - attack).each do |f|
    list << validation(attack[1], attack[0], f)
    list << validation(attack[1], attack[2], f)
    list << validation(attack[2], attack[0], f)
  end
  update_possibilities(list)
end

#zero_eat_zero_bite(attack) ⇒ Object 



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# File 'lib/numeron/calculator.rb', line 41

def zero_eat_zero_bite(attack)
  @mays[0] = @mays[0] - attack
  @mays[1] = @mays[1] - attack
  @mays[2] = @mays[2] - attack

  list = []
  @mays[0].each do |i|
    @mays[1].each do |j|
      next if i == j
      @mays[2].each do |k|
        next if i == k || j == k
        list << validation(i, j, k)
      end
    end
  end
  update_possibilities(list)
end