[2] Add MazeSolver orchestrator and interactive console game
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SavelevMI/docs/data/2-nd-exersize/main.py
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269
SavelevMI/docs/data/2-nd-exersize/main.py
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# Основной модуль: оркестратор MazeSolver, Observer для визуализации,
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# Player, Command для пошагового управления, интерактивная игра
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import sys
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import time
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import os
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from maze_core import TextFileMazeBuilder, Maze
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from pathfinding import BFSStrategy, DFSStrategy, AStarStrategy
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class SearchStats:
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def __init__(self, time_ms, visited_cells, path_length):
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self.time_ms = time_ms
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self.visited_cells = visited_cells
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self.path_length = path_length
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class Observer:
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def update(self, event_type, data):
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raise NotImplementedError
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class ConsoleView(Observer):
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def __init__(self, player=None):
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self._last_path = None
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self._player = player
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def update(self, event_type, data):
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if event_type == "maze_loaded":
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self.render_maze(data)
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elif event_type == "path_found":
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self._last_path = data
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self.render_path(data)
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elif event_type == "player_moved":
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self.render_maze_with_player(data)
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def render_maze(self, maze):
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os.system('cls' if os.name == 'nt' else 'clear')
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print("=" * (maze.width * 2 + 4))
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print(" ЛАБИРИНТ")
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print("=" * (maze.width * 2 + 4))
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for y in range(maze.height):
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print(" ", end='')
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for x in range(maze.width):
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cell = maze.get_cell(x, y)
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if cell == maze.start:
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print('S', end=' ')
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elif cell == maze.exit:
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print('E', end=' ')
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elif cell.is_wall:
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print('#', end=' ')
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else:
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print('.', end=' ')
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print()
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print("=" * (maze.width * 2 + 4))
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print(" S - вход E - выход # - стена . - проход")
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def render_maze_with_player(self, maze):
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os.system('cls' if os.name == 'nt' else 'clear')
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print("=" * (maze.width * 2 + 4))
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print(" ЛАБИРИНТ (P - игрок)")
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print("=" * (maze.width * 2 + 4))
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for y in range(maze.height):
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print(" ", end='')
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for x in range(maze.width):
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cell = maze.get_cell(x, y)
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if self._player and cell == self._player.current:
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print('P', end=' ')
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elif cell == maze.start:
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print('S', end=' ')
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elif cell == maze.exit:
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print('E', end=' ')
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elif cell.is_wall:
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print('#', end=' ')
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else:
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print('.', end=' ')
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print()
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print("=" * (maze.width * 2 + 4))
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print(f" Позиция игрока: ({self._player.current.x}, {self._player.current.y})")
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print(" S - вход E - выход # - стена . - проход P - игрок")
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def render_path(self, path):
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if not path:
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print("\n Путь не найден!")
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return
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print(f"\n Путь найден! Длина: {len(path)}")
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class Player:
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def __init__(self, start_cell, maze):
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self._current = start_cell
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self._previous = None
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self._maze = maze
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@property
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def current(self):
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return self._current
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def move_to(self, cell):
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if cell and cell.is_passable():
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self._previous = self._current
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self._current = cell
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return True
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return False
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def undo_move(self):
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if self._previous:
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self._current, self._previous = self._previous, None
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return True
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return False
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class Command:
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def execute(self):
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raise NotImplementedError
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def undo(self):
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raise NotImplementedError
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class MoveCommand(Command):
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def __init__(self, player, direction, maze):
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self._player = player
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self._direction = direction
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self._maze = maze
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self._executed = False
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def execute(self):
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dx, dy = self._direction
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new_x = self._player.current.x + dx
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new_y = self._player.current.y + dy
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target_cell = self._maze.get_cell(new_x, new_y)
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if target_cell and target_cell.is_passable():
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self._player.move_to(target_cell)
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self._executed = True
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return True
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return False
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def undo(self):
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if self._executed:
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self._player.undo_move()
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self._executed = False
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return True
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return False
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class MazeSolver:
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def __init__(self, maze):
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self._maze = maze
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self._strategy = None
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self._observers = []
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def attach(self, observer):
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self._observers.append(observer)
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def notify(self, event_type, data):
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for observer in self._observers:
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observer.update(event_type, data)
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def set_strategy(self, strategy):
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self._strategy = strategy
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def solve(self):
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if self._strategy is None:
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return None
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start_time = time.perf_counter()
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path = self._strategy.find_path(self._maze, self._maze.start, self._maze.exit)
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end_time = time.perf_counter()
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time_ms = (end_time - start_time) * 1000
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self.notify("path_found", path)
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return SearchStats(time_ms, self._strategy.get_visited_count(), len(path))
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def main():
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builder = TextFileMazeBuilder()
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# Загрузка лабиринта из файла
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if len(sys.argv) > 1:
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maze = builder.build_from_file(sys.argv[1])
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else:
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maze = builder.build_from_file("maze1.txt")
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# Создание игрока и визуализации
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player = Player(maze.start, maze)
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view = ConsoleView(player)
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view.render_maze(maze)
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# Создание решателя
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solver = MazeSolver(maze)
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solver.attach(view)
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print("\n УПРАВЛЕНИЕ:")
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print(" H (влево) J (вниз) K (вверх) L (вправо)")
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print(" U - отменить ход Q - выход")
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print("\n АВТО-ПОИСК:")
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print(" B - BFS (поиск в ширину)")
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print(" D - DFS (поиск в глубину)")
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print(" A - A* (звездочка)")
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print("\n" + "=" * 50)
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command_stack = []
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while True:
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key = input("\n Команда > ").lower()
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if key == 'q':
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print("\n До свидания!")
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break
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elif key == 'b':
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solver.set_strategy(BFSStrategy())
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stats = solver.solve()
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print(f"\n BFS: время={stats.time_ms:.3f}мс, посещено={stats.visited_cells}, длина={stats.path_length}")
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elif key == 'd':
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solver.set_strategy(DFSStrategy())
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stats = solver.solve()
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print(f"\n DFS: время={stats.time_ms:.3f}мс, посещено={stats.visited_cells}, длина={stats.path_length}")
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elif key == 'a':
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solver.set_strategy(AStarStrategy())
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stats = solver.solve()
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print(f"\n A*: время={stats.time_ms:.3f}мс, посещено={stats.visited_cells}, длина={stats.path_length}")
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elif key in ['h', 'j', 'k', 'l']:
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dirs = {'h': (-1, 0), 'l': (1, 0), 'k': (0, -1), 'j': (0, 1)}
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cmd = MoveCommand(player, dirs[key], maze)
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if cmd.execute():
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command_stack.append(cmd)
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view.render_maze_with_player(maze)
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if player.current == maze.exit:
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print("\n ПОЗДРАВЛЯЮ! ВЫ НАШЛИ ВЫХОД!")
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print(f" Всего ходов: {len(command_stack)}")
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break
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else:
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print("\n Туда нельзя – там стена!")
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elif key == 'u':
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if command_stack:
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cmd = command_stack.pop()
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cmd.undo()
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view.render_maze_with_player(maze)
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print("\n Ход отменён")
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else:
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print("\n Нечего отменять")
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else:
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print("\n Неизвестная команда. Используйте H,J,K,L для движения, U для отмены, Q для выхода")
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if __name__ == "__main__":
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main()
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