Minimalistic transferable interface

Magicians Primordial Soup
,
60

example:

You would probably code the 721 smart contract as such (if you’re overriding the OZ implementation or similar)

contract GameAsset is ERC721 {

    function _safeTransfer(
        address from,
        address to,
        uint256 tokenId,
        bytes memory data
    ) internal virtual override {
        require(_transferLockCheck(from, to, tokenId), "TransferLocked");
        super._transfer(from, to, tokenId);
    }

   function _transferLockCheck(address from, address to, uint256 tokenId) private view returns(bool) {
      // DO YOUR GAME CHECKS HERE
   }
}

If you were going to implement the function isTransferable(uint tokenId) function, it would point to the same private _transferLockCheck (because, why wouldn’t you)?

And if so, then the token transfer simulation would do exactly the same thing as the transferability check.

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