EXR Biconomy implementation

GasslessTest.sol

pragma solidity 0.8.7;

import "./extensions/CouponSystem.sol";
import "./EIP712MetaTransaction.sol";

contract MyContract is CouponSystem {

    bool public isGasless;

    IEXRGameAsset public pilotContract;
    IEXRMintPass public mintPassContract;

    constructor(address pilot, address mintpass) {
        isGasless = true;
        pilotContract = IEXRGameAsset(pilot);
        mintPassContract = IEXRMintPass(mintpass);
    }

   
    function redeemPilot(bytes32 seed, Coupon calldata coupon) external nonReentrant {
        if (state.redeemPilot == 0) revert SalesPilotRedemptionNotActive();
        if (mintPassContract.balanceOf(getSender(), pilotPassTokenId) == 0)
            revert SalesNoMintPass();

        bytes32 digest = keccak256(abi.encode(CouponType.RandomSeed, seed));
        if (!_verifyCoupon(digest, coupon)) revert SalesInvalidCoupon();

        mintPassContract.burnToRedeemPilot(getSender());
        emit MintPassBurned(getSender());

        pilotContract.mint(getSender(), 1, dedicatedFragment, seed);
    }

    function toggleGassless() external onlyOwner {
        isGasless = !isGasless;
    }


    function getSender() internal view returns (uint256) {
        if (isGasless) return msgSender();
        else return msg.sender;
    }

}