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  {
   "cell_type": "code",
   "execution_count": null,
   "id": "bc164689-22b6-4efd-bdd7-6a9913be9303",
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   "source": [
    "from typing import List, Optional, Tuple\n",
    "from modelsCell import Cell\n",
    "\n",
    "class Maze:\n",
    "    \"\"\"Модель лабиринта.\"\"\"\n",
    "    \n",
    "    def __init__(self, width: int = 0, height: int = 0):\n",
    "        self.width = width\n",
    "        self.height = height\n",
    "        self._cells: List[List[Optional[Cell]]] = [\n",
    "            [None for _ in range(width)] for _ in range(height)\n",
    "        ]\n",
    "        self.start_cell: Optional[Cell] = None\n",
    "        self.exit_cell: Optional[Cell] = None\n",
    "    \n",
    "    def set_cell(self, x: int, y: int, cell: Cell) -> None:\n",
    "        \"\"\"Установить клетку.\"\"\"\n",
    "        if 0 <= x < self.width and 0 <= y < self.height:\n",
    "            self._cells[y][x] = cell\n",
    "    \n",
    "    def get_cell(self, x: int, y: int) -> Optional[Cell]:\n",
    "        \"\"\"Получить клетку по координатам.\"\"\"\n",
    "        if 0 <= x < self.width and 0 <= y < self.height:\n",
    "            return self._cells[y][x]\n",
    "        return None\n",
    "    \n",
    "    def get_neighbors(self, cell: Cell) -> List[Cell]:\n",
    "        \"\"\"Получить проходимых соседей клетки (вверх, вниз, влево, вправо).\"\"\"\n",
    "        neighbors = []\n",
    "        directions = [(0, -1), (0, 1), (-1, 0), (1, 0)]  # вверх, вниз, влево, вправо\n",
    "        \n",
    "        for dx, dy in directions:\n",
    "            nx, ny = cell.x + dx, cell.y + dy\n",
    "            neighbor = self.get_cell(nx, ny)\n",
    "            if neighbor and neighbor.is_passable():\n",
    "                neighbors.append(neighbor)\n",
    "        \n",
    "        return neighbors\n",
    "    \n",
    "    def get_all_cells(self) -> List[Cell]:\n",
    "        \"\"\"Получить все клетки лабиринта.\"\"\"\n",
    "        cells = []\n",
    "        for y in range(self.height):\n",
    "            for x in range(self.width):\n",
    "                cell = self.get_cell(x, y)\n",
    "                if cell:\n",
    "                    cells.append(cell)\n",
    "        return cells"
   ]
  }
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