209 lines
7.5 KiB
Python
209 lines
7.5 KiB
Python
"""Contains actions that can be used on the board"""
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from typing import List, Tuple, Union
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from dataclasses import dataclass
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import itertools
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from . import board
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class Action:
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_before_state: int = 0
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_after_state: int = 0
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def _apply(self, action_board: board.Board) -> None:
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pass
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def _undo(self, action_board: board.Board) -> None:
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pass
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def apply(self, action_board: board.Board) -> None:
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#print(f"Applying {str(self)}")
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assert self._before_state == 0
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assert self._after_state == 0
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self._before_state = action_board.state_identifier
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self._apply(action_board)
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self._after_state = action_board.state_identifier
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def undo(self, action_board: board.Board) -> None:
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#print(f"Undoing {str(self)}")
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assert action_board.state_identifier == self._after_state
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self._undo(action_board)
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assert action_board.state_identifier == self._before_state
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@dataclass
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class GoalAction(Action):
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"""Move card from field to goal"""
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card: board.NumberCard
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source_id: int
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source_position: board.Position
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def _apply(self, action_board: board.Board) -> None:
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"""Do action"""
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if self.source_position == board.Position.Field:
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assert action_board.field[self.source_id][-1] == self.card
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assert action_board.goal[self.card.suit] + 1 == self.card.number
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action_board.field[self.source_id].pop()
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action_board.goal[self.card.suit] += 1
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elif self.source_position == board.Position.Bunker:
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assert action_board.bunker[self.source_id] == self.card
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assert action_board.goal[self.card.suit] + 1 == self.card.number
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action_board.bunker[self.source_id] = None
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action_board.goal[self.card.suit] += 1
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else:
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raise RuntimeError("Unknown position")
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def _undo(self, action_board: board.Board) -> None:
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"""Undo action"""
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assert action_board.goal[self.card.suit] == self.card.number
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if self.source_position == board.Position.Field:
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action_board.field[self.source_id].append(self.card)
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elif self.source_position == board.Position.Bunker:
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assert action_board.bunker[self.source_id] is None
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action_board.bunker[self.source_id] = self.card
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else:
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raise RuntimeError("Unknown position")
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action_board.goal[self.card.suit] -= 1
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@dataclass
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class BunkerizeAction(Action):
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"""Move card from bunker to field"""
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card: board.Card
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bunker_id: int
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field_id: int
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to_bunker: bool
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def _move_from_bunker(self, action_board: board.Board) -> None:
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assert action_board.bunker[self.bunker_id] == self.card
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action_board.bunker[self.bunker_id] = None
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action_board.field[self.field_id].append(self.card)
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def _move_to_bunker(self, action_board: board.Board) -> None:
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assert action_board.field[self.field_id][-1] == self.card
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assert action_board.bunker[self.bunker_id] is None
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action_board.bunker[self.bunker_id] = self.card
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action_board.field[self.field_id].pop()
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def _apply(self, action_board: board.Board) -> None:
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"""Do action"""
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if self.to_bunker:
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self._move_to_bunker(action_board)
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else:
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self._move_from_bunker(action_board)
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def _undo(self, action_board: board.Board) -> None:
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"""Undo action"""
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if self.to_bunker:
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self._move_from_bunker(action_board)
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else:
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self._move_to_bunker(action_board)
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@dataclass
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class MoveAction(Action):
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"""Moving a card from one field stack to another"""
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cards: List[board.Card]
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source_id: int
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destination_id: int
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def _shift(
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self,
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action_board: board.Board,
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source: int,
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dest: int) -> None:
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"""Shift a card from the field id 'source' to field id 'dest'"""
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for stack_offset, card in enumerate(
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self.cards, start=-len(self.cards)):
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assert action_board.field[source][stack_offset] == card
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action_board.field[source] = action_board.field[
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source][:-len(self.cards)]
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action_board.field[dest].extend(self.cards)
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def _apply(self, action_board: board.Board) -> None:
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"""Do action"""
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if action_board.field[self.destination_id]:
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dest_card = action_board.field[self.destination_id][-1]
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if not all(isinstance(x, board.NumberCard) for x in self.cards):
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raise AssertionError()
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if not isinstance(dest_card, board.NumberCard):
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raise AssertionError()
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if not isinstance(self.cards[0], board.NumberCard):
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raise AssertionError()
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if dest_card.suit == self.cards[0].suit:
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raise AssertionError()
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if dest_card.number != self.cards[0].number + 1:
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raise AssertionError()
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self._shift(action_board, self.source_id, self.destination_id)
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def _undo(self, action_board: board.Board) -> None:
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"""Undo action"""
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self._shift(action_board, self.destination_id, self.source_id)
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@dataclass
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class DragonKillAction(Action):
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"""Removing four dragons from the top of the stacks to a bunker"""
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dragon: board.SpecialCard
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source_stacks: List[Tuple[board.Position, int]]
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destination_bunker_id: int
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def _apply(self, action_board: board.Board) -> None:
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"""Do action"""
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assert (
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action_board.bunker[self.destination_bunker_id] is None
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or action_board.bunker[self.destination_bunker_id] == self.dragon
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)
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assert len(self.source_stacks) == 4
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for position, index in self.source_stacks:
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if position == board.Position.Field:
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assert action_board.field[index]
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assert action_board.field[index][-1] == self.dragon
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action_board.field[index].pop()
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elif position == board.Position.Bunker:
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assert action_board.bunker[index] == self.dragon
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action_board.bunker[index] = None
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else:
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raise RuntimeError("Can only kill dragons in field and bunker")
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action_board.bunker[self.destination_bunker_id] = (self.dragon, 4)
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def _undo(self, action_board: board.Board) -> None:
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"""Undo action"""
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assert action_board.bunker[self.destination_bunker_id] == (
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self.dragon, 4)
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assert len(self.source_stacks) == 4
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for position, index in self.source_stacks:
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if position == board.Position.Field:
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action_board.field[index].append(self.dragon)
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elif position == board.Position.Bunker:
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action_board.bunker[index] = self.dragon
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else:
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raise RuntimeError("Can only kill dragons in field and bunker")
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action_board.bunker[self.destination_bunker_id] = None
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@dataclass
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class HuaKillAction(Action):
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"""Remove the flower card"""
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source_field_id: int
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def _apply(self, action_board: board.Board) -> None:
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"""Do action"""
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assert not action_board.flower_gone
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assert (action_board.field[self.source_field_id][-1]
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== board.SpecialCard.Hua)
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action_board.field[self.source_field_id].pop()
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action_board.flower_gone = True
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def _undo(self, action_board: board.Board) -> None:
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"""Undo action"""
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assert action_board.flower_gone
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action_board.field[self.source_field_id].append(board.SpecialCard.Hua)
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action_board.flower_gone = False
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