feat: add Cell and Maze classes

lomakinae/docs/data/02/src/cell.py

@@ -0,0 +1,10 @@
+class Cell:
+    def __init__(self, x: int, y: int):
+        self.x = x
+        self.y = y
+        self.is_wall = False
+        self.is_start = False
+        self.is_exit = False
+
+    def is_passable(self) -> bool:
+        return not self.is_wall

lomakinae/docs/data/02/src/maze.py

@@ -0,0 +1,49 @@
+from typing import List, Optional
+
+from .cell import Cell
+
+
+class Maze:
+    def __init__(self, width: int, height: int):
+        self.width = width
+        self.height = height
+        self.cells = [[Cell(x, y) for x in range(width)] for y in range(height)]
+        self.start = None
+        self.exit = None
+
+    def get_cell(self, x: int, y: int) -> Optional[Cell]:
+        if 0 <= x < self.width and 0 <= y < self.height:
+            return self.cells[y][x]
+        return None
+
+    def set_cell(self, x: int, y: int, cell_type: str):
+        cell = self.get_cell(x, y)
+        if cell is None:
+            return
+
+        if cell_type == "wall":
+            cell.is_wall = True
+        elif cell_type == "start":
+            if self.start:
+                self.start.is_start = False
+            cell.is_start = True
+            cell.is_wall = False
+            self.start = cell
+        elif cell_type == "exit":
+            if self.exit:
+                self.exit.is_exit = False
+            cell.is_exit = True
+            cell.is_wall = False
+            self.exit = cell
+        elif cell_type == "path":
+            cell.is_wall = False
+
+    def get_neighbors(self, cell: Cell) -> List[Cell]:
+        neighbors = []
+        directions = [(0, -1), (0, 1), (-1, 0), (1, 0)]
+        for dx, dy in directions:
+            nx, ny = cell.x + dx, cell.y + dy
+            neighbor = self.get_cell(nx, ny)
+            if neighbor and neighbor.is_passable():
+                neighbors.append(neighbor)
+        return neighbors