2026-rff_mp/SimonovaMS/lab2/maze_builder.py
2026-05-02 06:49:44 +03:00

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from abc import ABC, abstractmethod
from typing import Tuple
import os
from maze_model import Maze, Cell
class MazeBuilder(ABC):
@abstractmethod
def build_from_file(self, filename: str) -> Maze:
pass
class TextFileMazeBuilder(MazeBuilder):
def build_from_file(self, filename: str) -> Maze:
if not os.path.exists(filename):
raise FileNotFoundError(f"Файл {filename} не найден..")
with open(filename, 'r', encoding='utf-8') as file:
lines = [line.rstrip('\n') for line in file.readlines()]
if not lines:
raise ValueError("Пусто(")
height = len(lines)
width = len(lines[0]) if lines else 0
for i, line in enumerate(lines):
if len(line) != width:
raise ValueError(f"Лабиринт не прямоугольный, что-то не так с размерами!")
maze = Maze(width, height)
start_found = False
exit_found = False
for y, line in enumerate(lines):
for x, char in enumerate(line):
cell = Cell(x, y)
if char == '#':
cell.is_wall = True
elif char == 'S':
cell.is_start = True
cell.is_wall = False
maze.start = cell
start_found = True
elif char == 'E':
cell.is_exit = True
cell.is_wall = False
maze.exit = cell
exit_found = True
elif char == ' ':
cell.is_wall = False
else:
raise ValueError(f"Недопустимый символ-'{char}' в позиции ({x}, {y}), уберите его")
maze.set_cell(x, y, cell)
if not start_found:
raise ValueError("В лабиринте нет начала")
if not exit_found:
raise ValueError("В лабиринте нет конца")
return maze