10 Commits
10 changed files with 321 additions and 33 deletions
+8
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@@ -20,3 +20,11 @@ lint-strict:
run_test_parsing: run_test_parsing:
PYTHONPATH=src uv run pytest tests/test_parsing.py PYTHONPATH=src uv run pytest tests/test_parsing.py
run_test_dfs:
PYTHONPATH=src uv run pytest tests/test_Depth.py
run_test_maze_gen:
PYTHONPATH=src uv run pytest tests/test_MazeGenerator.py
run_test:
uv run pytest
+7 -8
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@@ -1,22 +1,21 @@
import os import os
from numpy import ma
from src.amaz_lib import MazeGenerator
from src.amaz_lib import Maze from src.amaz_lib import Maze
from src.amaz_lib import MazeGenerator
import src.amaz_lib as g
def main() -> None: def main(maze_gen: MazeGenerator) -> None:
# try: # try:
maze = Maze(maze=None, start=(1, 1), end=(16, 15)) maze = Maze(maze=None)
for alg in MazeGenerator.Kruskal.kruskal(20, 20): gen = maze_gen.generator(100, 100)
for alg in gen:
maze.set_maze(alg) maze.set_maze(alg)
os.system("clear") os.system("clear")
maze.ascii_print() maze.ascii_print()
maze.export_maze("test.txt")
# except Exception as err: # except Exception as err:
# print(err) # print(err)
if __name__ == "__main__": if __name__ == "__main__":
main() main(g.DepthFirstSearch())
+5 -3
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@@ -1,8 +1,10 @@
from pydantic import BaseModel, Field from dataclasses import dataclass
class Cell(BaseModel): @dataclass
value: int = Field(ge=0, le=15) class Cell:
def __init__(self, value: int) -> None:
self.value = value
def __str__(self) -> str: def __str__(self) -> str:
return hex(self.value).removeprefix("0x").upper() return hex(self.value).removeprefix("0x").upper()
+112 -11
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@@ -84,17 +84,118 @@ class Kruskal(MazeGenerator):
return self.walls_to_maze(walls, height, width) return self.walls_to_maze(walls, height, width)
def main(): class DepthFirstSearch(MazeGenerator):
try:
for alg in MazeGenerator.Kruskal.kruskal(10, 10):
maze = alg
# print(maze)
# print()
print(maze)
except GeneratorExit as maze: def generator(self, width: int, height: int
print(maze) ) -> Generator[np.ndarray, None, np.ndarray]:
maze = DepthFirstSearch.init_maze(width, height)
visited = np.zeros((height, width), dtype=bool)
path = list()
w_h = (width, height)
coord = (0, 0)
x, y = coord
first = True
while path or first:
first = False
visited[y, x] = True
path = DepthFirstSearch.add_cell_visited(coord, path)
random_c = DepthFirstSearch.random_cells(visited, coord, w_h)
if len(random_c) == 0:
path = DepthFirstSearch.back_on_step(path, w_h, visited)
if path:
coord = path[-1]
random_c = DepthFirstSearch.random_cells(visited, coord, w_h)
x, y = coord
if not path:
break
if __name__ == "__main__": wall = DepthFirstSearch.next_step(random_c)
main() maze[y][x] = DepthFirstSearch.broken_wall(maze[y][x], wall)
coord = DepthFirstSearch.next_cell(x, y, wall)
wall_r = DepthFirstSearch.reverse_path(wall)
x, y = coord
maze[y][x] = DepthFirstSearch.broken_wall(maze[y][x], wall_r)
yield maze
return maze
@staticmethod
def init_maze(width: int, height: int) -> np.ndarray:
maze = np.array([[Cell(value=15) for _ in range(width)]
for _ in range(height)])
return maze
@staticmethod
def add_cell_visited(coord: tuple, path: set) -> list:
path.append(coord)
return path
@staticmethod
def random_cells(visited: np.array, coord: tuple, w_h: tuple) -> list:
rand_cell = []
x, y = coord
width, height = w_h
if y - 1 >= 0 and not visited[y - 1][x]:
rand_cell.append("N")
if y + 1 < height and not visited[y + 1][x]:
rand_cell.append("S")
if x - 1 >= 0 and not visited[y][x - 1]:
rand_cell.append("W")
if x + 1 < width and not visited[y][x + 1]:
rand_cell.append("E")
return rand_cell
@staticmethod
def next_step(rand_cell: list) -> str:
return np.random.choice(rand_cell)
@staticmethod
def broken_wall(cell: Cell, wall: str) -> Cell:
if wall == "N":
cell.set_north(False)
elif wall == "S":
cell.set_south(False)
elif wall == "W":
cell.set_west(False)
elif wall == "E":
cell.set_est(False)
return cell
@staticmethod
def next_cell(x: int, y: int, next: str) -> tuple:
next_step = {
"N": (0, -1),
"S": (0, 1),
"W": (-1, 0),
"E": (1, 0)
}
add_x, add_y = next_step[next]
return (x + add_x, y + add_y)
@staticmethod
def reverse_path(next: str) -> str:
reverse = {
"N": "S",
"S": "N",
"W": "E",
"E": "W"
}
return reverse[next]
@staticmethod
def back_on_step(path: list, w_h: tuple, visited: np.array) -> list:
last = path[-1]
r_cells = DepthFirstSearch.random_cells(visited, last, w_h)
while len(path) > 0:
path.pop()
if path:
last = path[-1]
r_cells = DepthFirstSearch.random_cells(visited, last, w_h)
if r_cells:
break
return path
+127
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@@ -1,7 +1,134 @@
from abc import ABC, abstractmethod from abc import ABC, abstractmethod
from .Maze import Maze from .Maze import Maze
import numpy as np
class MazeSolver(ABC): 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 @abstractmethod
def solve(self, maze: Maze) -> str: ... 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
+5 -3
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@@ -1,8 +1,10 @@
from .Cell import Cell from .Cell import Cell
from .Maze import Maze from .Maze import Maze
from .MazeGenerator import MazeGenerator from .MazeGenerator import MazeGenerator, DepthFirstSearch
from .MazeSolver import MazeSolver from .MazeGenerator import Kruskal
from .MazeSolver import MazeSolver, AStar
__version__ = "1.0.0" __version__ = "1.0.0"
__author__ = "us" __author__ = "us"
__all__ = ["Cell", "Maze", "MazeGenerator", "MazeSolver"] __all__ = ["Cell", "Maze", "MazeGenerator",
"MazeSolver", "AStar", "Kruskal", "DepthFirstSearch"]
+27
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@@ -0,0 +1,27 @@
from amaz_lib.MazeGenerator import DepthFirstSearch
from amaz_lib.Cell import Cell
import numpy as np
class TestDepth:
def test_init_maze(self) -> None:
maze = DepthFirstSearch.init_maze(10, 10)
cell = Cell(value=15)
maze[1][1].set_est(False)
assert maze[0][0].value == cell.value
def test_rand_cells(self) -> None:
w_h = (10, 10)
lst = np.zeros((10, 10), dtype=bool)
lst[0, 0] = True
rand_cells = DepthFirstSearch.random_cells(lst, (0, 1), w_h)
assert len(rand_cells) == 2
def test_next_cell(self) -> None:
coord = (5, 4)
x, y = coord
assert DepthFirstSearch.next_cell(x, y, "N") == (2, 3)
def test_reverse_path(self) -> None:
assert DepthFirstSearch.reverse_path("N") == "S"
+1 -1
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@@ -15,7 +15,7 @@ def test_maze_setter_getter() -> None:
) )
maze.set_maze(test) maze.set_maze(test)
assert numpy.array_equal(maze.get_maze(), test) == True assert numpy.array_equal(maze.get_maze(), test) is True
def test_maze_str() -> None: def test_maze_str() -> None:
+10 -7
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@@ -1,11 +1,14 @@
import numpy import numpy
from amaz_lib.MazeGenerator import Kruskal from amaz_lib.MazeGenerator import DepthFirstSearch
def test_kruskal_output_shape() -> None: class TestMazeGenerator:
generator = Kruskal()
maze = numpy.array([])
for output in generator.generator(10, 10):
maze = output
assert maze.shape == (10, 10) def test_generator(self) -> None:
w_h = (300, 300)
maze = numpy.array([])
generator = DepthFirstSearch().generator(*w_h)
for output in generator:
maze = output
assert maze.shape == w_h
+19
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@@ -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"