181 lines
6.4 KiB
Python
181 lines
6.4 KiB
Python
"""Contains function to iterate different kinds of possible actions"""
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from typing import Iterator, List, Tuple
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import board
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import board_actions
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def possible_huakill_action(
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search_board: board.Board
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) -> Iterator[board_actions.HuaKillAction]:
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"""Check if the flowercard can be eliminated"""
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for index, stack in enumerate(search_board.field):
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if stack and stack[-1] == board.SpecialCard.Hua:
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yield board_actions.HuaKillAction(source_field_id=index)
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def possible_dragonkill_actions(
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search_board: board.Board
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) -> Iterator[board_actions.DragonKillAction]:
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"""Enumerate all possible dragon kills"""
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possible_dragons = [
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board.SpecialCard.Zhong,
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board.SpecialCard.Fa,
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board.SpecialCard.Bai,
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]
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if not any(x is None for x in search_board.bunker):
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new_possible_dragons = []
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for dragon in possible_dragons:
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if any(x == dragon for x in search_board.bunker):
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new_possible_dragons.append(dragon)
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possible_dragons = new_possible_dragons
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for dragon in possible_dragons:
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bunker_dragons = [i for i, d in enumerate(search_board.bunker) if d == dragon]
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field_dragons = [
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i for i, f in enumerate(search_board.field) if f if f[-1] == dragon
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]
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if len(bunker_dragons) + len(field_dragons) != 4:
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continue
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destination_bunker_id = 0
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if bunker_dragons:
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destination_bunker_id = bunker_dragons[0]
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else:
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destination_bunker_id = [
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i for i, x in enumerate(search_board.bunker) if x is None
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][0]
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source_stacks = [(board.Position.Bunker, i) for i in bunker_dragons]
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source_stacks.extend([(board.Position.Field, i) for i in field_dragons])
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yield board_actions.DragonKillAction(
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dragon=dragon,
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source_stacks=source_stacks,
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destination_bunker_id=destination_bunker_id,
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)
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def possible_bunkerize_actions(
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search_board: board.Board
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) -> Iterator[board_actions.BunkerizeAction]:
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"""Enumerates all possible card moves from the field to the bunker"""
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open_bunker_list = [i for i, x in enumerate(search_board.bunker) if x is None]
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if not open_bunker_list:
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return
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open_bunker = open_bunker_list[0]
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for index, stack in enumerate(search_board.field):
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if not stack:
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continue
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yield board_actions.BunkerizeAction(
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card=stack[-1], source_id=index, destination_id=open_bunker, to_bunker=True
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)
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def possible_debunkerize_actions(
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search_board: board.Board
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) -> Iterator[board_actions.BunkerizeAction]:
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"""Enumerates all possible card moves from the bunker to the field"""
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bunker_number_cards = [
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(i, x)
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for i, x in enumerate(search_board.bunker)
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if isinstance(x, board.NumberCard)
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]
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for index, card in bunker_number_cards:
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for other_index, other_stack in enumerate(search_board.field):
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if not other_stack:
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continue
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if not isinstance(other_stack[-1], board.NumberCard):
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continue
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if other_stack[-1].suit == card.suit:
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continue
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if other_stack[-1].number != card.number + 1:
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continue
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yield board_actions.BunkerizeAction(
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card=card, source_id=index, destination_id=other_index, to_bunker=False
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)
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def possible_goal_move_actions(
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search_board: board.Board
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) -> Iterator[board_actions.GoalAction]:
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"""Enumerates all possible moves from anywhere to the goal"""
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field_cards = [
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(board.Position.Field, index, stack[-1])
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for index, stack in enumerate(search_board.field)
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if stack
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if isinstance(stack[-1], board.NumberCard)
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]
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bunker_cards = [
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(board.Position.Bunker, index, stack)
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for index, stack in enumerate(search_board.bunker)
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if isinstance(stack, board.NumberCard)
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]
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top_cards = field_cards + bunker_cards
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for suit, number in search_board.goal.items():
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for source, index, stack in top_cards:
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if not (stack.suit == suit and stack.number == number + 1):
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continue
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yield board_actions.GoalAction(
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card=stack, source_id=index, source_position=source
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)
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break
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def _can_stack(bottom: board.Card, top: board.Card) -> bool:
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if not isinstance(bottom, board.NumberCard):
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return False
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if not isinstance(top, board.NumberCard):
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return False
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if bottom.suit == top.suit:
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return False
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if bottom.number != top.number + 1:
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return False
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return True
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def _get_cardstacks(search_board: board.Board) -> List[List[board.Card]]:
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"""Returns all cards on one stack that can be moved at once"""
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result: List[List[board.Card]] = []
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for stack in search_board.field:
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result.append([])
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if not stack:
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continue
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result[-1].append(stack[-1])
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for card in stack[-2::-1]:
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if not _can_stack(card, result[-1][0]):
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break
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if not isinstance(card, board.NumberCard):
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break
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result[-1].insert(0, card)
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return result
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def possible_field_move_actions(
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search_board: board.Board
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) -> Iterator[board_actions.MoveAction]:
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"""Enumerate all possible move actions from one field stack to another field stack"""
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for index, stack in enumerate(_get_cardstacks(search_board)):
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if not stack:
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continue
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# TODO: sort all substacks by length
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for substack in (stack[i:] for i in range(len(stack))):
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for other_index, other_stack in enumerate(search_board.field):
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if other_stack:
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if not _can_stack(other_stack[-1], substack[0]):
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continue
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yield board_actions.MoveAction(
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cards=substack, source_id=index, destination_id=other_index
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)
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def possible_actions(search_board: board.Board) -> Iterator[board_actions.Action]:
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"""Enumerate all possible actions on the current search_board"""
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yield from possible_huakill_action(search_board)
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yield from possible_dragonkill_actions(search_board)
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yield from possible_goal_move_actions(search_board)
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yield from possible_debunkerize_actions(search_board)
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yield from possible_field_move_actions(search_board)
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yield from possible_bunkerize_actions(search_board)
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