pragma solidity ^0.4.24;

contract ITokenLocation {

    function hasLocation(uint256 _tokenId) public view returns (bool);

    function getTokenLocation(uint256 _tokenId) public view returns (int, int);

    function setTokenLocation(uint256 _tokenId, int _x, int _y) public;

    function getTokenLocationHM(uint256 _tokenId) public view returns (int, int);

    function setTokenLocationHM(uint256 _tokenId, int _x, int _y) public;
}