Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at https://remix.ethereum.org/#version=soljson-v0.8.10+commit.fc410830.js&optimize=false&runs=200&gist=

contracts...pointsData.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.10;


interface IPointsNFT {
    function readSeed(uint256 id) external view returns (uint256);
}

contract pointsData {

    struct layerData {
        bytes data;
    }

    mapping(uint256 => layerData) public CellLayerData;

    function addDataToLayer(string memory data, uint256 tokenId) external {
        CellLayerData[tokenId].data = abi.encodePacked(data);
    }

    function multiAdd(string[] memory data, uint256[] memory tokenId) external {
        require(data.length == tokenId.length);
        
        for (uint256 i=0; i<tokenId.length; i++) {
            CellLayerData[tokenId[i]].data = abi.encodePacked(data[i]);
        }
    }

    function readId(uint256 tokenId) external view returns (string memory) {
        return abi.decode(CellLayerData[tokenId].data,(string));
    }


}