83 lines
3.1 KiB
Python
83 lines
3.1 KiB
Python
"""
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experiment.py - экспериментальное сравнение стратегий поиска пути.
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Для каждого лабиринта × стратегии:
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- запускаем solve() TRIALS раз
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- усредняем время в мс, фиксируем число посещённых клеток и длину пути
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- сохраняем в docs/data/results.csv
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"""
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import csv
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import os
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from maze_solver import (
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TextFileMazeBuilder, MazeSolver,
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BFSStrategy, DFSStrategy, AStarStrategy, DijkstraStrategy,
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)
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TRIALS = 7
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MAZES = [
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("small_10x10", "mazes/small_10x10.txt"),
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("medium_51x51", "mazes/medium_51x51.txt"),
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("large_101x101", "mazes/large_101x101.txt"),
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("empty_30x30", "mazes/empty_30x30.txt"),
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("nopath_15x15", "mazes/nopath_15x15.txt"),
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("weighted_31x31", "mazes/weighted_31x31.txt"),
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("weighted_choice","mazes/weighted_choice.txt"),
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]
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STRATEGY_CLASSES = [BFSStrategy, DFSStrategy, AStarStrategy, DijkstraStrategy]
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OUT_CSV = "docs/data/results.csv"
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def main():
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os.makedirs(os.path.dirname(OUT_CSV), exist_ok=True)
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builder = TextFileMazeBuilder()
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rows = [["лабиринт", "стратегия", "trial",
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"время_мс", "посещено_клеток", "длина_пути", "стоимость_пути"]]
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summary = []
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for maze_name, maze_path in MAZES:
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maze = builder.build_from_file(maze_path)
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print(f"\n## {maze_name} ({maze.width}x{maze.height})")
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for cls in STRATEGY_CLASSES:
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times, visited_vals, path_vals, cost_vals = [], [], [], []
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for trial in range(TRIALS):
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solver = MazeSolver(maze, cls())
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stats = solver.solve()
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cost = sum(c.weight for c in stats["path"])
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times.append(stats["elapsed_ms"])
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visited_vals.append(stats["visited"])
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path_vals.append(stats["path_length"])
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cost_vals.append(cost)
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rows.append([maze_name, stats["strategy"], trial + 1,
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f"{stats['elapsed_ms']:.4f}",
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stats["visited"], stats["path_length"], cost])
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mean_t = sum(times) / TRIALS
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print(f" {cls.name:9s} t_avg={mean_t:7.3f} ms "
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f"visited={visited_vals[0]:5d} "
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f"path={path_vals[0]:5d} cost={cost_vals[0]:5d}")
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summary.append((maze_name, cls.name, mean_t,
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visited_vals[0], path_vals[0], cost_vals[0]))
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rows.append([])
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rows.append(["--- СРЕДНИЕ ---"])
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rows.append(["лабиринт", "стратегия", "среднее_время_мс",
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"посещено_клеток", "длина_пути", "стоимость_пути"])
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for r in summary:
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rows.append([r[0], r[1], f"{r[2]:.4f}", r[3], r[4], r[5]])
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with open(OUT_CSV, "w", newline="", encoding="utf-8") as f:
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csv.writer(f).writerows(rows)
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print(f"\nГотово. Результаты записаны в {OUT_CSV}")
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if __name__ == "__main__":
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main()
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