Contract Source Code:

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.28;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract WojactFriesGame is Ownable {
    IERC20 public wojactToken;

    mapping(address => uint256) public userScoopCount;
    mapping(address => uint256) public userDeposits;
    mapping(address => uint256) public userTiers;
    
    uint256 public totalDeposits;

    // Modifiable game settings
    uint256 public minHolding = 100 * 10**18;
    uint256 public burnPerScoop = 1 * 10**18;
    uint256 public rewardThreshold = 50;
    uint256 public baseReward = 5 * 10**18;

    // Reward multipliers
    uint256 public bronzeMultiplier = 120;
    uint256 public silverMultiplier = 150;
    uint256 public goldMultiplier = 200;

    // Tier deposit requirements
    uint256 public bronzeRequirement = 10_000 * 10**18;
    uint256 public silverRequirement = 50_000 * 10**18;
    uint256 public goldRequirement = 100_000 * 10**18;

    bool public ownershipRenounced = false; // Tracks if ownership is renounced

    event FriesScooped(address indexed player, uint256 scoops, uint256 totalScoops);
    event TokensBurned(address indexed player, uint256 amount);
    event TokensRewarded(address indexed player, uint256 amount);
    event TokensDeposited(address indexed sender, uint256 amount, uint256 tier);
    event TierUpgraded(address indexed user, uint256 tier);
    event MultipliersUpdated(uint256 bronze, uint256 silver, uint256 gold);
    event GameSettingsUpdated(uint256 minHolding, uint256 burnPerScoop, uint256 rewardThreshold, uint256 baseReward);
    event OwnershipRenounced();

    constructor(address _wojactToken) Ownable(msg.sender) {
        wojactToken = IERC20(_wojactToken);
    }

    function isHolderOf(address user) public view returns (bool) {
        return wojactToken.balanceOf(user) >= minHolding;
    }

    function scoopFries() external {
        require(isHolderOf(msg.sender), "Must hold minimum WOJACT to play");

        require(wojactToken.transferFrom(msg.sender, address(0xdead), burnPerScoop), "Burn failed");
        emit TokensBurned(msg.sender, burnPerScoop);

        userScoopCount[msg.sender] += 1;
        emit FriesScooped(msg.sender, 1, userScoopCount[msg.sender]);

        if (userScoopCount[msg.sender] % rewardThreshold == 0) {
            uint256 rewardAmount = getRewardAmount(msg.sender);
            require(wojactToken.balanceOf(address(this)) >= rewardAmount, "Not enough WOJACT in rewards pool");
            wojactToken.transfer(msg.sender, rewardAmount);
            emit TokensRewarded(msg.sender, rewardAmount);
        }
    }

    function depositForTier(uint256 amount) external {
        require(amount >= bronzeRequirement, "Minimum deposit required");

        require(wojactToken.transferFrom(msg.sender, address(this), amount), "Deposit failed");

        if (amount >= goldRequirement) {
            userTiers[msg.sender] = 3;
        } else if (amount >= silverRequirement) {
            userTiers[msg.sender] = 2;
        } else {
            userTiers[msg.sender] = 1;
        }

        userDeposits[msg.sender] += amount;
        totalDeposits += amount;

        emit TokensDeposited(msg.sender, amount, userTiers[msg.sender]);
        emit TierUpgraded(msg.sender, userTiers[msg.sender]);
    }

    function getRewardAmount(address user) public view returns (uint256) {
        uint256 baseAmount = baseReward;

        if (userTiers[user] == 3) {
            return (baseAmount * goldMultiplier) / 100;
        } else if (userTiers[user] == 2) {
            return (baseAmount * silverMultiplier) / 100;
        } else if (userTiers[user] == 1) {
            return (baseAmount * bronzeMultiplier) / 100;
        } else {
            return baseAmount;
        }
    }

    function manualReward(address recipient, uint256 amount) external onlyOwner {
        require(wojactToken.balanceOf(address(this)) >= amount, "Not enough WOJACT in rewards pool");
        wojactToken.transfer(recipient, amount);
        emit TokensRewarded(recipient, amount);
    }

    function getUserTier(address user) external view returns (uint256) {
        return userTiers[user];
    }

    function getUserDeposits(address user) external view returns (uint256) {
        return userDeposits[user];
    }

    function setMultipliers(uint256 _bronze, uint256 _silver, uint256 _gold) external onlyOwner {
        require(_bronze >= 100 && _silver >= 100 && _gold >= 100, "Multipliers must be >= 100%");

        bronzeMultiplier = _bronze;
        silverMultiplier = _silver;
        goldMultiplier = _gold;

        emit MultipliersUpdated(_bronze, _silver, _gold);
    }

    function setGameSettings(
        uint256 _minHolding,
        uint256 _burnPerScoop,
        uint256 _rewardThreshold,
        uint256 _baseReward
    ) external onlyOwner {
        require(_minHolding > 0, "Min holding must be > 0");
        require(_burnPerScoop > 0, "Burn per scoop must be > 0");
        require(_rewardThreshold > 0, "Reward threshold must be > 0");
        require(_baseReward > 0, "Base reward must be > 0");

        minHolding = _minHolding;
        burnPerScoop = _burnPerScoop;
        rewardThreshold = _rewardThreshold;
        baseReward = _baseReward;

        emit GameSettingsUpdated(_minHolding, _burnPerScoop, _rewardThreshold, _baseReward);
    }

    /**
     * @dev **Renounce ownership forever** to make the contract fully decentralized.
     *      Once called, no settings can be updated.
     */
    function renounceGameOwnership() external onlyOwner {
        ownershipRenounced = true;
        renounceOwnership();
        emit OwnershipRenounced();
    }

    receive() external payable {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}