61 lines
2.1 KiB
Python
61 lines
2.1 KiB
Python
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from typing import List, Tuple
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from buildersMaze_builder import MazeBuilder
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from modelsMaze import Maze
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from modelsCell import Cell
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class TextFieldMazeBuilder(MazeBuilder):
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"""Загрузчик лабиринта из текстового файла."""
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# Символы в файле
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WALL_CHAR = '#'
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PASS_CHAR = ' '
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START_CHAR = 'S'
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EXIT_CHAR = 'E'
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def build_from_file(self, filename: str) -> Maze:
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"""Загрузить лабиринт из текстового файла."""
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with open(filename, 'r', encoding='utf-8') as f:
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lines = [line.rstrip('\n') for line in f.readlines()]
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if not lines:
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raise ValueError("Файл пуст")
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height = len(lines)
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width = max(len(line) for line in lines)
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maze = Maze(width, height)
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start_cell = None
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exit_cell = None
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for y, line in enumerate(lines):
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for x, ch in enumerate(line):
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if x >= width:
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continue
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is_wall = (ch == self.WALL_CHAR)
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is_start = (ch == self.START_CHAR)
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is_exit = (ch == self.EXIT_CHAR)
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# Пробел или буква - проходимая клетка
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if ch == self.PASS_CHAR or is_start or is_exit:
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is_wall = False
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cell = Cell(x=x, y=y, is_wall=is_wall, is_start=is_start, is_exit=is_exit)
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maze.set_cell(x, y, cell)
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if is_start:
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start_cell = cell
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if is_exit:
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exit_cell = cell
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# Валидация
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if start_cell is None:
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raise ValueError("В лабиринте нет стартовой клетки (S)")
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if exit_cell is None:
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raise ValueError("В лабиринте нет выходной клетки (E)")
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maze.start_cell = start_cell
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maze.exit_cell = exit_cell
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return maze
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