Contract BotPrevent.sol

Smart Contracts
1

I am reviewing play to earn contracts and I have come across a contract with this implementation

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

abstract contract BPContract {
    function protect(
        address sender,
        address receiver,
        uint256 amount
    ) external virtual;
}

It seems to be looking for bot detection. But does it really work?

Looking at the functions I get the impression that it is the opposite. That is, to use them within the contract.
I am right?

   function setBpAddress(address _bp) external onlyOwner {
        require(address(BP) == address(0), "Can only be initialized once");
        BP = BPContract(_bp);

        emit BPAdded(_bp);
    }

    function setBpEnabled(bool _enabled) external onlyOwner {
        require(address(BP) != address(0), "You have to set BP address first");
        bpEnabled = _enabled;
        emit BPEnabled(_enabled);
    }

    /**
     * @dev Add the BP handler to prevents the bots.
     *
     **/
    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual override {
        if (bpEnabled) {
            BP.protect(sender, recipient, amount);
            emit BPTransfer(sender, recipient, amount);
        }
        super._transfer(sender, recipient, amount);
    }

This is the contract:

2

The BPContract is set to the address 0x2036c73c1e5ece4d0aa64ea2c4a563c47b531790, which doesn't have code available. The only way to tell what the method protectdoes is by disassembling the contract code.

IMO, bot detection can't be done reliably on-chain. At most you can prevent what looks like bot behavior (trading in and out of your token in a very short time span or in high volumes, for example).

3

Thanks for your answer.