ProninVV/task-2-oop/Deikstra.py

@@ -0,0 +1,43 @@
+from strategy import PathFindingStrategy
+from Maze import Maze, Cell
+
+
+class DeikstraFind(PathFindingStrategy):
+    def findPath(maze, start, exit):
+
+        if not start or not exit:
+            return []
+
+        queue = [start]
+
+        distances = {start: 0}
+        parents = {start: None}
+
+        while len(queue) != 0:
+            best_cell = queue[0]
+            for cell in queue:
+                if distances[cell] < distances[best_cell]:
+                    best_cell = cell
+
+            u = best_cell
+            queue.remove(u)
+
+            if u == exit:
+                path = []
+                current = exit
+                while current is not None:
+                    path.append(current)
+                    current = parents[current]
+                path.reverse()
+                return path, len(parents)
+
+            for child in maze.getNeighbors(u):
+                distance_through_u = distances[u] + 1
+
+                if distance_through_u < distances.get(child, float('inf')):
+                    distances[child] = distance_through_u
+                    parents[child] = u
+                    if child not in queue:
+                        queue.append(child)
+
+        return []

ProninVV/task-2-oop/MazeSolver.py

@@ -0,0 +1,42 @@
+import time
+
+
+class SearchStats:
+    def __init__(self, execution_time, visited_count, path_length, path):
+        self.execution_time = execution_time
+        self.visited_count = visited_count
+        self.path_length = path_length
+        self.path = path
+
+    def __str__(self):
+        return ("f == Статистика поиска == =\n"
+                f"Время выполнения: {self.execution_time_ms:.4f} мс\n"
+                f"Посещено клеток:  {self.visited_count}\n"
+                f"Длина пути:       {self.path_length} клеток\n")
+
+
+class MazeSolver:
+    def __init__(self, maze, strategy):
+        self._maze = maze
+        self._strategy = strategy
+
+    def setStrategy(self, strategy):
+        self._strategy = strategy
+
+    def solve(self):
+
+        if not self.maze or not self.strategy:
+            raise ValueError("Не задан лабиринт или стратегия поиска!")
+
+        start_time = time.perf_counter()
+
+        path, visited_count = self.strategy.findPath(
+            self.maze, self.maze.start, self.maze.exit)
+
+        end_time = time.perf_counter()
+
+        execution_time_ms = (end_time - start_time) * 1000
+
+        path_length = len(path)
+
+        return SearchStats(execution_time_ms, visited_count, path_length, path)