base but not working astar solver

Makefile

@@ -19,4 +19,4 @@ lint-strict:
 	uv run mypy . --strict
 
 run_test:
-	PYTHONPATH=src uv run python3 test/test_parsing.py
+	uv run pytest

a_maze_ing.py

@@ -1,17 +1,19 @@
 import os
 from numpy import ma
-from src.amaz_lib import MazeGenerator
+from src.amaz_lib import MazeGenerator, Kruskal, AStar
 from src.amaz_lib import Maze
 
 
 def main() -> None:
     # try:
-    maze = Maze(maze=None, start=(1, 1), end=(16, 15))
-    for alg in MazeGenerator.Kruskal.kruskal(20, 20):
+    maze = Maze(maze=None)
+    generator = Kruskal()
+    for alg in generator.generator(20, 20):
         maze.set_maze(alg)
         os.system("clear")
         maze.ascii_print()
-    maze.export_maze("test.txt")
+    solver = AStar((1, 1), (14, 18))
+    print(solver.solve(maze))
 
 
 # except Exception as err:

src/amaz_lib/MazeSolver.py

@@ -1,7 +1,134 @@
 from abc import ABC, abstractmethod
 from .Maze import Maze
+import numpy as np
 
 
 class MazeSolver(ABC):
+    def __init__(self, start: tuple[int, int], end: tuple[int, int]) -> None:
+        self.start = (start[0] - 1, start[1] - 1)
+        self.end = (end[0] - 1, end[1] - 1)
+
     @abstractmethod
     def solve(self, maze: Maze) -> str: ...
+
+
+class AStar(MazeSolver):
+
+    def __init__(self, start: tuple[int, int], end: tuple[int, int]) -> None:
+        super().__init__(start, end)
+
+    def f(self, n):
+        def g(n: tuple[int, int]) -> int:
+            res = 0
+            if n[0] < self.start[0]:
+                res += self.start[0] - n[0]
+            else:
+                res += n[0] - self.start[0]
+            if n[1] < self.start[1]:
+                res += self.start[1] - n[1]
+            else:
+                res += n[1] - self.start[1]
+            return res
+
+        def h(n: tuple[int, int]) -> int:
+            res = 0
+            if n[0] < self.end[0]:
+                res += self.end[0] - n[0]
+            else:
+                res += n[0] - self.end[0]
+            if n[1] < self.end[1]:
+                res += self.end[1] - n[1]
+            else:
+                res += n[1] - self.end[1]
+            return res
+
+        try:
+            return g(n) + h(n)
+        except Exception:
+            return 1000
+
+    def best_path(
+        self, maze: np.ndarray, actual: tuple[int, int]
+    ) -> dict[str, int | None]:
+        print(actual)
+        path = {
+            "N": (
+                self.f((actual[0], actual[1] - 1))
+                if not maze[actual[0]][actual[1]].get_north() and actual[1] > 0
+                else None
+            ),
+            "E": (
+                self.f((actual[0] + 1, actual[1]))
+                if not maze[actual[0]][actual[1]].get_est()
+                and actual[0] < len(maze) - 1
+                else None
+            ),
+            "S": (
+                self.f((actual[0], actual[1] + 1))
+                if not maze[actual[0]][actual[1]].get_south()
+                and actual[1] < len(maze[0]) - 1
+                else None
+            ),
+            "W": (
+                self.f((actual[0] - 1, actual[1]))
+                if not maze[actual[0]][actual[1]].get_west() and actual[0] > 0
+                else None
+            ),
+        }
+        return {
+            k: v for k, v in sorted(path.items(), key=lambda item: item[0])
+        }
+
+    def get_opposit(self, dir: str) -> str:
+        match dir:
+            case "N":
+                return "S"
+            case "E":
+                return "W"
+            case "S":
+                return "N"
+            case "W":
+                return "E"
+            case _:
+                return ""
+
+    def get_next_pos(
+        self, dir: str, actual: tuple[int, int]
+    ) -> tuple[int, int]:
+        match dir:
+            case "N":
+                return (actual[0], actual[1] - 1)
+            case "E":
+                return (actual[0] + 1, actual[1])
+            case "S":
+                return (actual[0], actual[1] + 1)
+            case "W":
+                return (actual[0] - 1, actual[1])
+            case _:
+                return actual
+
+    def get_path(
+        self, actual: tuple[int, int], maze: np.ndarray, pre: str | None
+    ) -> str | None:
+        if actual == self.end:
+            return ""
+        paths = self.best_path(maze, actual)
+        for path in paths:
+            if paths[path] is None:
+                continue
+            if path != pre:
+                temp = self.get_path(
+                    self.get_next_pos(path, actual),
+                    maze,
+                    self.get_opposit(path),
+                )
+                if not temp is None:
+                    return path + temp
+        return None
+
+    def solve(self, maze: Maze) -> str:
+        print(maze)
+        res = self.get_path(self.start, maze.get_maze(), None)
+        if res is None:
+            raise Exception("Path not found")
+        return res

src/amaz_lib/__init__.py

@@ -1,8 +1,8 @@
 from .Cell import Cell
 from .Maze import Maze
-from .MazeGenerator import MazeGenerator
-from .MazeSolver import MazeSolver
+from .MazeGenerator import MazeGenerator, Kruskal
+from .MazeSolver import MazeSolver, AStar
 
 __version__ = "1.0.0"
 __author__ = "us"
-__all__ = ["Cell", "Maze", "MazeGenerator", "MazeSolver"]
+__all__ = ["Cell", "Maze", "MazeGenerator", "MazeSolver", "AStar", "Kruskal"]

tests/test_MazeSolver.py

@@ -0,0 +1,19 @@
+from amaz_lib.Cell import Cell
+import numpy as np
+from amaz_lib import AStar, Maze, MazeSolver
+
+
+def test_solver() -> None:
+    maze = Maze(
+        np.array(
+            [
+                [Cell(value=13), Cell(value=3), Cell(value=11)],
+                [Cell(value=9), Cell(value=4), Cell(value=6)],
+                [Cell(value=12), Cell(value=5), Cell(value=7)],
+            ]
+        )
+    )
+    print(maze)
+    solver = AStar((1, 1), (3, 3))
+    res = solver.solve(maze)
+    assert res == "ESWSEE"