34 lines
943 B
Python
34 lines
943 B
Python
|
"""Паттерн Command - команды для управления игроком"""
|
||
|
|
|
||
|
|
from abc import ABC, abstractmethod
|
||
|
|
from models import Cell, Player
|
||
|
|
|
||
|
|
|
||
|
|
class Command(ABC):
|
||
|
|
"""Интерфейс команды"""
|
||
|
|
|
||
|
|
@abstractmethod
|
||
|
|
def execute(self) -> None:
|
||
|
|
pass
|
||
|
|
|
||
|
|
@abstractmethod
|
||
|
|
def undo(self) -> None:
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
class MoveCommand(Command):
|
||
|
|
"""Команда перемещения игрока"""
|
||
|
|
|
||
|
|
def __init__(self, player: Player, new_cell: Cell):
|
||
|
|
self._player = player
|
||
|
|
self._new_cell = new_cell
|
||
|
|
self._old_cell = player.current_cell
|
||
|
|
|
||
|
|
def execute(self) -> None:
|
||
|
|
"""Выполнение перемещения"""
|
||
|
|
if self._player.can_move_to(self._new_cell):
|
||
|
|
self._player.move_to(self._new_cell)
|
||
|
|
|
||
|
|
def undo(self) -> None:
|
||
|
|
"""Отмена перемещения"""
|
||
|
|
self._player.move_to(self._old_cell)
|