Class: Mjai::ActiveGame

Inherits:
Game
  • Object
show all
Defined in:
lib/mjai/active_game.rb

Constant Summary collapse

ACTION_PREFERENCES = 
{
    :hora => 4,
    :ryukyoku => 3,
    :pon => 2,
    :daiminkan => 2,
    :chi => 1,
}

Instance Attribute Summary collapse

Attributes inherited from Game

#all_pais, #bakaze, #current_action, #dora_markers, #honba, #last, #num_pipais, #oya, #players, #previous_action

Instance Method Summary collapse

Methods inherited from Game

#action_in_view, #can_kan?, #distance, #do_action, #doras, #dump_action, #first_turn?, #get_hora, #on_action, #on_responses, #ranked_players, #render_board, #validate, #validate_fields_exist, #validate_response_content, #validate_response_type, #validate_responses

Constructor Details

#initialize(players) ⇒ ActiveGame

Returns a new instance of ActiveGame.



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# File 'lib/mjai/active_game.rb', line 19

def initialize(players)
  super(players.shuffle())
  @game_type = :one_kyoku
end

Instance Attribute Details

#game_type ⇒ Object

Returns the value of attribute game_type.



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# File 'lib/mjai/active_game.rb', line 24

def game_type
  @game_type
end

Instance Method Details

#add_dora ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 313

def add_dora()
  dora_marker = @wanpais.pop()
  do_action({:type => :dora, :dora_marker => dora_marker})
end

#check_ryukyoku ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 140

def check_ryukyoku()
  if players.all?(){ |pl| pl.reach? }
    process_ryukyoku(:suchareach)
    throw(:end_kyoku)
  end
  if first_turn? && !players[0].sutehais.empty? && players[0].sutehais[0].fonpai? &&
      players.all?(){ |pl| pl.sutehais == [players[0].sutehais[0]] }
    process_ryukyoku(:sufonrenta)
    throw(:end_kyoku)
  end
  kan_counts = players.map(){ |pl| pl.furos.count(){ |f| f.kan? } }
  if kan_counts.inject(0){ |total, n| total + n } == 4 && !kan_counts.include?(4)
    process_ryukyoku(:sukaikan)
    throw(:end_kyoku)
  end
end

#choose_actions(actions) ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 164

def choose_actions(actions)
  actions = actions.select(){ |a| a }
  max_pref = actions.map(){ |a| ACTION_PREFERENCES[a.type] || 0 }.max
  max_actions = actions.select(){ |a| (ACTION_PREFERENCES[a.type] || 0) == max_pref }
  return max_actions
end

#decide_last(last_bakaze, tenpai_renchan) ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 291

def decide_last(last_bakaze, tenpai_renchan)
  if @players.any? { |pl| pl.score < 0 }
    return true
  end

  if @ag_bakaze == last_bakaze.succ.succ
    return true
  end
  if @ag_bakaze == last_bakaze.succ
    return @players.any? { |pl| pl.score >= 30000 }
  end

  # Agari-yame, tenpai-yame
  if @ag_bakaze == last_bakaze && @ag_oya == @players[3] &&
      tenpai_renchan && @players[3].score >= 30000 &&
      (0..2).all? { |i| @players[i].score < @players[3].score }
    return true
  end

  return false
end

#expect_response_from?(player) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mjai/active_game.rb', line 334

def expect_response_from?(player)
  return true
end

#game_finished? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mjai/active_game.rb', line 318

def game_finished?
  if @last
    return true
  else
    @last = true if @game_type == :one_kyoku
    return false
  end
end

#get_final_scores ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 327

def get_final_scores()
  # The winner takes remaining kyotaku.
  deltas = [0, 0, 0, 0]
  deltas[self.ranked_players[0].id] = @ag_kyotaku * 1000
  return get_scores(deltas)
end

#get_scores(deltas) ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 338

def get_scores(deltas)
  return (0...4).map(){ |i| self.players[i].score + deltas[i] }
end

#mota ⇒ Object

摸打



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# File 'lib/mjai/active_game.rb', line 75

def mota()
  reach_pending = false
  kandora_pending = false
  tsumo_actor = @actor
  actions = [Action.new({:type => :tsumo, :actor => @actor, :pai => @pipais.pop()})]
  while !actions.empty?
    if actions[0].type == :hora
      if actions.size >= 3
        process_ryukyoku(:sanchaho, actions.map(){ |a| a.actor })
      else
        process_hora(actions)
      end
      throw(:end_kyoku)
    elsif actions[0].type == :ryukyoku
      raise("should not happen") if actions.size != 1
      process_ryukyoku(:kyushukyuhai, [actions[0].actor])
      throw(:end_kyoku)
    else
      raise("should not happen") if actions.size != 1
      action = actions[0]
      responses = do_action(action)
      next_actions = nil
      case action.type
        when :daiminkan, :kakan, :ankan
          if action.type == :ankan
            add_dora()
          end
          # Actually takes one from wanpai and moves one pai from pipai to wanpai,
          # but it's equivalent to taking from pipai.
          next_actions =
            [Action.new({:type => :tsumo, :actor => action.actor, :pai => @pipais.pop()})]
          # TODO Handle 4 kans.
        when :reach
          reach_pending = true
      end
      next_actions ||= choose_actions(responses)
      if reach_pending &&
          (next_actions.empty? || ![:dahai, :hora].include?(next_actions[0].type))
        @ag_kyotaku += 1
        deltas = [0, 0, 0, 0]
        deltas[tsumo_actor.id] = -1000
        do_action({
            :type => :reach_accepted,
            :actor => tsumo_actor,
            :deltas => deltas,
            :scores => get_scores(deltas),
        })
        reach_pending = false
      end
      if kandora_pending &&
          !next_actions.empty? && [:dahai, :tsumo].include?(next_actions[0].type)
        add_dora()
        kandora_pending = false
      end
      if [:daiminkan, :kakan].include?(action.type)
        kandora_pending = true
      end
      if action.type == :dahai && (next_actions.empty? || next_actions[0].type != :hora)
        check_ryukyoku()
      end
      actions = next_actions
    end
  end
end

#play ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 26

def play()
  if ![:one_kyoku, :tonpu, :tonnan].include?(@game_type)
    raise("Unknown game_type")
  end
  begin
    do_action({:type => :start_game, :names => self.players.map(){ |pl| pl.name }})
    @ag_oya = @ag_chicha = @players[0]
    @ag_bakaze = Pai.new("E")
    @ag_honba = 0
    @ag_kyotaku = 0
    while !self.game_finished?
      play_kyoku()
    end
    do_action({:type => :end_game, :scores => get_final_scores()})
    return true
  rescue ValidationError => ex
    do_action({:type => :error, :message => ex.message})
    return false
  end
end

#play_kyoku ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 47

def play_kyoku()
  catch(:end_kyoku) do
    @pipais = @all_pais.shuffle()
    @pipais.shuffle!()
    @wanpais = @pipais.pop(14)
    dora_marker = @wanpais.pop()
    tehais = Array.new(4){ @pipais.pop(13).sort() }
    do_action({
        :type => :start_kyoku,
        :bakaze => @ag_bakaze,
        :kyoku => (4 + @ag_oya.id - @ag_chicha.id) % 4 + 1,
        :honba => @ag_honba,
        :kyotaku => @ag_kyotaku,
        :oya => @ag_oya,
        :dora_marker => dora_marker,
        :tehais => tehais,
    })
    @actor = self.oya
    while !@pipais.empty?
      mota()
      @actor = @players[(@actor.id + 1) % 4]
    end
    process_fanpai()
  end
  do_action({:type => :end_kyoku})
end

#process_fanpai ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 237

def process_fanpai()
  tenpais = []
  tehais = []
  for player in players
    if player.tenpai?
      tenpais.push(true)
      tehais.push(player.tehais)
    else
      tenpais.push(false)
      tehais.push([Pai::UNKNOWN] * player.tehais.size)
    end
  end
  tenpai_ids = (0...4).select(){ |i| tenpais[i] }
  noten_ids = (0...4).select(){ |i| !tenpais[i] }
  deltas = [0, 0, 0, 0]
  if (1..3).include?(tenpai_ids.size)
    for id in tenpai_ids
      deltas[id] += 3000 / tenpai_ids.size
    end
    for id in noten_ids
      deltas[id] -= 3000 / noten_ids.size
    end
  end
  do_action({
      :type => :ryukyoku,
      :reason => :fanpai,
      :tenpais => tenpais,
      :tehais => tehais,
      :deltas => deltas,
      :scores => get_scores(deltas),
  })
  update_oya(tenpais[self.oya.id], true)
end

#process_hora(actions) ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 171

def process_hora(actions)
  tsumibo = self.honba
  for action in actions.sort_by(){ |a| distance(a.actor, a.target) }
    uradora_markers = action.actor.reach? ? @wanpais.pop(self.dora_markers.size) : []
    hora = get_hora(action, {
        :uradora_markers => uradora_markers,
        :previous_action => self.previous_action,
    })
    raise("no yaku") if !hora.valid?
    deltas = [0, 0, 0, 0]
    deltas[action.actor.id] += hora.points + tsumibo * 300 + @ag_kyotaku * 1000
    if hora.hora_type == :tsumo
      for player in self.players
        next if player == action.actor
        deltas[player.id] -=
            ((player == self.oya ? hora.oya_payment : hora.ko_payment) + tsumibo * 100)
      end
    else
      deltas[action.target.id] -= (hora.points + tsumibo * 300)
    end
    do_action({
      :type => action.type,
      :actor => action.actor,
      :target => action.target,
      :pai => action.pai,
      :hora_tehais => action.actor.tehais,
      :uradora_markers => uradora_markers,
      :yakus => hora.yakus,
      :fu => hora.fu,
      :fan => hora.fan,
      :hora_points => hora.points,
      :deltas => deltas,
      :scores => get_scores(deltas),
    })
    # Only kamicha takes them in case of daburon.
    tsumibo = 0
    @ag_kyotaku = 0
  end
  update_oya(actions.any?(){ |a| a.actor == self.oya }, false)
end

#process_ryukyoku(reason, actors = []) ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 212

def process_ryukyoku(reason, actors=[])
  actor = (reason == :kyushukyuhai) ? actors[0] : nil
  tenpais = []
  tehais = []
  for player in players
    if reason == :suchareach || actors.include?(player)  # :sanchaho, :kyushukyuhai
      tenpais.push(reason != :kyushukyuhai)
      tehais.push(player.tehais)
    else
      tenpais.push(false)
      tehais.push([Pai::UNKNOWN] * player.tehais.size)
    end
  end
  do_action({
      :type => :ryukyoku,
      :actor => actor,
      :reason => reason,
      :tenpais => tenpais,
      :tehais => tehais,
      :deltas => [0, 0, 0, 0],
      :scores => players.map(){ |player| player.score }
  })
  update_oya(true, true)
end

#update_oya(renchan, ryukyoku) ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 271

def update_oya(renchan, ryukyoku)
  if renchan
    @ag_oya = self.oya
  else
    @ag_oya = @players[(self.oya.id + 1) % 4]
    @ag_bakaze = @ag_bakaze.succ if @ag_oya == @players[0]
  end
  if renchan || ryukyoku
    @ag_honba += 1
  else
    @ag_honba = 0
  end
  case @game_type
    when :tonpu
      @last = decide_last(Pai.new("E"), renchan)
    when :tonnan
      @last = decide_last(Pai.new("S"), renchan)
  end
end

#update_state(action) ⇒ Object 



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# File 'lib/mjai/active_game.rb', line 157

def update_state(action)
  super(action)
  if action.type == :tsumo && @pipais.size != self.num_pipais
    raise("num pipais mismatch: %p != %p" % [@pipais.size, self.num_pipais])
  end
end