Class: PokerOdds::Hand

Inherits:
Object
  • Object
show all
Defined in:
lib/poker_odds/hand.rb

Instance Method Summary collapse

Instance Method Details

#deck ⇒ Object 



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# File 'lib/poker_odds/hand.rb', line 152

def deck
  cards = PokerTrump::Cards.new_deck
  cards.delete_cards!(expose_cards) unless expose_cards.size == 0
  player_hands.each do |player_hand|
    cards.delete_cards!(player_hand)
  end
  cards.delete_cards!(flop_cards) unless flop_cards.size == 0
  cards.delete_card!(turn_card) if !!turn_card
  cards.delete_card!(river_card) if !!river_card

  cards
end

#equities ⇒ Object 



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# File 'lib/poker_odds/hand.rb', line 34

def equities
  z = deck.each_with_object({}) do |card, a|
    scores = player_hands.each_with_object({}) do |player_hand, h|
      cards = player_hand
      cards = cards.add_cards(flop_cards)
      cards = cards.add_card(turn_card)
      cards = cards.add_card(card)

      h[cards.score] ||= []
      h[cards.score] << player_hand
    end

    a[card] = {}
    if scores.keys.size == 1
      a[card][:tie_hands] = player_hands
    else
      mk = scores.keys.max
      a[card][:win_hands] = scores[mk]
      a[card][:lose_hands] = scores.each_with_object([]) do |(k,v), a|
        next if k == mk

        a.concat(v)
      end
    end
  end

  s = z.size.to_f

  player_hands.each_with_object({}) do |player_hand, h|
    win_hands = z.select { |a,b| b[:win_hands]&.include?(player_hand) }
    win_rate = win_hands.size / s
    h[player_hand] = {}
    h[player_hand][:win_rate] = win_rate
    h[player_hand][:lose_rate] = z.count { |a,b| b[:lose_hands]&.include?(player_hand) } / s
    h[player_hand][:tie_rate] = z.count { |a,b| b[:tie_hands]&.include?(player_hand) } / s
    h[player_hand][:outs] = win_hands.keys if win_rate < 0.5
  end
end

#flop=(str) ⇒ Object 



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# File 'lib/poker_odds/hand.rb', line 19

def flop=(str)
  self.flop_cards = PokerTrump::Cards.from_string(str)
  self
end

#flop_equities ⇒ Object 



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# File 'lib/poker_odds/hand.rb', line 73

def flop_equities
  z = deck.combination(2).each_with_object({}) do |cs, a|
    scores = player_hands.each_with_object({}) do |player_hand, h|
      cards = player_hand
      cards = cards.add_cards(flop_cards)

      cs.each { |c| cards = cards.add_card(c) }

      h[cards.score] ||= []
      h[cards.score] << player_hand
    end

    a[cs] = {}
    if scores.keys.size == 1
      a[cs][:tie_hands] = player_hands
    else
      mk = scores.keys.max
      a[cs][:win_hands] = scores[mk]
      a[cs][:lose_hands] = scores.each_with_object([]) do |(k,v), a|
        next if k == mk

        a.concat(v)
      end
    end
  end

  s = z.size.to_f

  player_hands.each_with_object({}) do |player_hand, h|
    win_hands = z.select { |a,b| b[:win_hands]&.include?(player_hand) }
    win_rate = win_hands.size / s
    h[player_hand] = {}
    h[player_hand][:win_rate] = win_rate
    h[player_hand][:lose_rate] = z.count { |a,b| b[:lose_hands]&.include?(player_hand) } / s
    h[player_hand][:tie_rate] = z.count { |a,b| b[:tie_hands]&.include?(player_hand) } / s
    h[player_hand][:outs] = win_hands.keys if win_rate < 0.5
  end
end

#player=(str) ⇒ Object 



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# File 'lib/poker_odds/hand.rb', line 12

def player=(str)
  self.player_hands = str.split(',').map do |s|
    PokerTrump::Cards.from_string(s.lstrip)
  end
  self
end

#preflop_equities ⇒ Object 



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# File 'lib/poker_odds/hand.rb', line 112

def preflop_equities
  ran = deck.combination(5).to_a
  z = 10000.times.with_object({}) do |i, a|
    cs = ran.sample
    scores = player_hands.each_with_object({}) do |player_hand, h|
      cards = player_hand

      cs.each { |c| cards = cards.add_card(c) }

      h[cards.score] ||= []
      h[cards.score] << player_hand
    end

    a[cs] = {}
    if scores.keys.size == 1
      a[cs][:tie_hands] = player_hands
    else
      mk = scores.keys.max
      a[cs][:win_hands] = scores[mk]
      a[cs][:lose_hands] = scores.each_with_object([]) do |(k,v), a|
        next if k == mk

        a.concat(v)
      end
    end
  end

  s = z.size.to_f

  player_hands.each_with_object({}) do |player_hand, h|
    win_hands = z.select { |a,b| b[:win_hands]&.include?(player_hand) }
    win_rate = win_hands.size / s
    h[player_hand] = {}
    h[player_hand][:win_rate] = win_rate
    h[player_hand][:lose_rate] = z.count { |a,b| b[:lose_hands]&.include?(player_hand) } / s
    h[player_hand][:tie_rate] = z.count { |a,b| b[:tie_hands]&.include?(player_hand) } / s
    h[player_hand][:outs] = win_hands.keys if win_rate < 0.5
  end
end

#river=(s) ⇒ Object 



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# File 'lib/poker_odds/hand.rb', line 29

def river=(s)
  self.river_cards = PokerTrump::Card.from_string(str)
  self
end

#turn=(str) ⇒ Object 



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# File 'lib/poker_odds/hand.rb', line 24

def turn=(str)
  self.turn_card = PokerTrump::Card.from_string(str)
  self
end