52 lines
1.5 KiB
Python
52 lines
1.5 KiB
Python
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from abc import ABC, abstractmethod
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from maze_model import Cell, Maze
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class MazeBuilder(ABC):
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@abstractmethod
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def build_from_file(self, filename: str) -> Maze:
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...
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class TextFileMazeBuilder(MazeBuilder):
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def build_from_file(self, filename: str) -> Maze:
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with open(filename, "r", encoding="utf-8") as f:
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lines = f.read().splitlines()
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if not lines:
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raise ValueError("Файл лабиринта пуст.")
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height = len(lines)
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width = max(len(line) for line in lines)
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lines = [line.ljust(width, "#") for line in lines]
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cells: list[list[Cell]] = []
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start: Cell | None = None
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exit_cell: Cell | None = None
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for y, line in enumerate(lines):
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row = []
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for x, ch in enumerate(line):
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is_wall = ch == "#"
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is_start = ch == "S"
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is_exit = ch == "E"
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cell = Cell(x, y, is_wall=is_wall, is_start=is_start, is_exit=is_exit)
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if is_start:
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start = cell
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if is_exit:
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exit_cell = cell
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row.append(cell)
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cells.append(row)
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if start is None:
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raise ValueError("Лабиринт не содержит стартовой клетки (S).")
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if exit_cell is None:
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raise ValueError("Лабиринт не содержит выхода (E).")
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return Maze(width, height, cells, start, exit_cell)
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