31 lines
961 B
Python
31 lines
961 B
Python
from collections import deque
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from strategies.pathfinding_strategy import PathFindingStrategy
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class BFSStrategy(PathFindingStrategy):
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def find_path(self, maze, start_cell, exit_cell):
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queue = deque([start_cell])
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parents = {start_cell: None}
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visited = {start_cell}
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visited_count = 0
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while queue:
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current = queue.popleft()
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visited_count += 1
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if current == exit_cell:
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path = []
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while current is not None:
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path.append(current)
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current = parents[current]
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path.reverse()
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return path, visited_count
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for neighbor in maze.get_neighbors(current):
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if neighbor in visited:
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continue
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visited.add(neighbor)
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parents[neighbor] = current
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queue.append(neighbor)
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return [], visited_count |