Run It Twice / Double Board Bomb Pots

[AussieSeaweed]

For PokerKit Version 0.5, I am planning on implementing run it twice (or thrice, etc.) and double (or triple, quadruple, etc.) board games.

This version release introduces a number of backward incompatible changes. Please read the below content carefully!

Summary of changes

• Minor cleanup that may break older code.

• Option to choose cash-game vs. tournament (default) mode (defaults to tournament mode).

  • Unlike in tourneys, in cash-games, players can select the number of runouts during all-in situations or opt to not show their hand after an all-in.

• Option to choose the number of runouts during all-in situations (disabled in tournament mode).

  • In theory, people choose number of runouts before they show their hands. But, this isn't always followed. It is also unclear who must select the number of runouts first. As such, after all-in, when showdown takes place,

• More degree of freedom in hole dealing/showdown order.

Changed

• The parameters divmod, and rake for relevant poker game/state initialization methods are now keyword-only arguments. Before, one could supply them as positional arguments but this is no longer allowed!

• pokerkit.state.State.board_cards (previously list[Card]) is now of type list[list[Card]].

  • For example, if an all-in happens on the flop (AsKsQs) and is run twice (JsTs, JhTh), state.board_cards == [[As], [Ks], [Qs], [Js, Jh], [Ts, Th]]. Or, when double board omaha is played, something like state.board_cards == [[??, ??], [??, ??], [??, ??]] will develop after the flop.
  • The function signatures for pokerkit.state.State.get_hand, pokerkit.state.State.get_up_hand, and pokerkit.state.State.get_up_hands now also requires the board_index to be supplied.
  • The properties/method pokerkit.state.State.reserved_cards, pokerkit.state.State.cards_in_play, pokerkit.state.State.cards_not_in_play, and pokerkit.state.State.get_dealable_cards(deal_count: int) now return Iterator[Card] instead of tuple[Card, ...].
  • The method triplets for the hole dealing and showdown operation pokerkit.state.State.verify_hole_dealing(), pokerkit.state.State.can_deal_hole(), pokerkit.state.State.deal_hole(), pokerkit.state.State.verify_hole_cards_showing_or_mucking(), pokerkit.state.State.can_show_or_muck_hole_cards(), and pokerkit.state.State.show_or_muck_hole_cards() also accepts an optional positional argument player_index to control the dealee, or the showdown performer. The verifiers also returns a player dealt if the dealee is not specified.

Added

• New enum class pokerkit.state.State.Mode for setting tournament/cash-game mode while initializing poker states.

  • Tournament mode: pokerkit.state.Mode.TOURNAMENT

  • Cash-game mode: pokerkit.state.Mode.CASH_GAME

  • In all-in situations, players have a chance to choose the number of runouts during showdown.

• New parameter mode in relevant poker game/state initialization methods. It defaults to tournament mode.

• New automation pokerkit.state.State.Automation.RUNOUT_COUNT_SELECTION which instructs PokerKit to carry out only one run-out.

• New pokerkit.state.RUNOUT_COUNT_SELECTION operation.

  • Arguments: runout_count and player_index who gives out the selection.
  • Querier: pokerkit.state.State.can_select_runout_count(player_index: int | None = None, runout_count: int | None = None).
  • Validator: pokerkit.state.State.verify_runout_count_selection(player_index: int | None = None, runout_count: int | None = None).
  • Operator: pokerkit.state.State.select_runout_count(player_index: int | None = None, runout_count: int | None = None, *, commentary: str | None = None).
  • People who can select run count: pokerkit.state.State.runout_count_selector_indices.
  • If runout_count are in disagreement among active players, only 1 runout is performed.
  • When multiple runs are selected, the state will be incompatible with the PHH file format, as it stands.

• New attribute pokerkit.state.State.street_return_indices that internally keeps track of at the end of what street to return to ensure multiple runouts are performed.

• New attribute pokerkit.state.State.runout_count that shows the players' preferences on the number of runouts. It maybe None in which case the runout selection was skipped due to the state being of tournament mode or all players showed no preference by passing in None (or leaving empty) for the runout_count argument during the corresponding method call of pokerkit.state.select_runout_count().

• New attributes pokerkit.state.State.board_count and pokerkit.state.State.board_indices on the number of boards and the range of its indices. The number of boards is at least 1 but may be more due to multiple runouts or the variant being played.

• New method pokerkit.state.State.get_board_cards(board_index: int) on getting the board_index'th board.

  • The maximum number of boards is either equal to the number of boards of the variant or (in case of multiple runouts) the product of it and the number of runouts.

• New attribute pokerkit.state.State.runout_count_selector_statuses that keeps track of who can select the number of runouts.

• New attribute pokerkit.state.State.runout_count_selection_flag that keeps track of whether the runout count selection has been carried out.

Pending changes

• Double/triple/etc. board variants.