Contract Source Code:
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable2Step.sol)
pragma solidity ^0.8.0;
import "./OwnableUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module which provides access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership} and {acceptOwnership}.
*
* This module is used through inheritance. It will make available all functions
* from parent (Ownable).
*/
abstract contract Ownable2StepUpgradeable is Initializable, OwnableUpgradeable {
address private _pendingOwner;
event OwnershipTransferStarted(address indexed previousOwner, address indexed newOwner);
function __Ownable2Step_init() internal onlyInitializing {
__Ownable_init_unchained();
}
function __Ownable2Step_init_unchained() internal onlyInitializing {
}
/**
* @dev Returns the address of the pending owner.
*/
function pendingOwner() public view virtual returns (address) {
return _pendingOwner;
}
/**
* @dev Starts the ownership transfer of the contract to a new account. Replaces the pending transfer if there is one.
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual override onlyOwner {
_pendingOwner = newOwner;
emit OwnershipTransferStarted(owner(), newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`) and deletes any pending owner.
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual override {
delete _pendingOwner;
super._transferOwnership(newOwner);
}
/**
* @dev The new owner accepts the ownership transfer.
*/
function acceptOwnership() public virtual {
address sender = _msgSender();
require(pendingOwner() == sender, "Ownable2Step: caller is not the new owner");
_transferOwnership(sender);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.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.
*
* By default, the owner account will be the one that deploys the contract. 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 OwnableUpgradeable is Initializable, ContextUpgradeable {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
function __Ownable_init() internal onlyInitializing {
__Ownable_init_unchained();
}
function __Ownable_init_unchained() internal onlyInitializing {
_transferOwnership(_msgSender());
}
/**
* @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 {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @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 {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_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);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```solidity
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
*
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts.
*
* Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
* constructor.
*
* Emits an {Initialized} event.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* A reinitializer may be used after the original initialization step. This is essential to configure modules that
* are added through upgrades and that require initialization.
*
* When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
* cannot be nested. If one is invoked in the context of another, execution will revert.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*
* WARNING: setting the version to 255 will prevent any future reinitialization.
*
* Emits an {Initialized} event.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*
* Emits an {Initialized} event the first time it is successfully executed.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized != type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
/**
* @dev Returns the highest version that has been initialized. See {reinitializer}.
*/
function _getInitializedVersion() internal view returns (uint8) {
return _initialized;
}
/**
* @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
*/
function _isInitializing() internal view returns (bool) {
return _initializing;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)
pragma solidity ^0.8.0;
import "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
bool private _paused;
/**
* @dev Initializes the contract in unpaused state.
*/
function __Pausable_init() internal onlyInitializing {
__Pausable_init_unchained();
}
function __Pausable_init_unchained() internal onlyInitializing {
_paused = false;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
require(!paused(), "Pausable: paused");
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
require(paused(), "Pausable: not paused");
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuardUpgradeable is Initializable {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
function __ReentrancyGuard_init() internal onlyInitializing {
__ReentrancyGuard_init_unchained();
}
function __ReentrancyGuard_init_unchained() internal onlyInitializing {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == _ENTERED;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @dev Returns true if `account` is a contract.
*
* [IMPORTANT]
* ====
* It is unsafe to assume that an address for which this function returns
* false is an externally-owned account (EOA) and not a contract.
*
* Among others, `isContract` will return false for the following
* types of addresses:
*
* - an externally-owned account
* - a contract in construction
* - an address where a contract will be created
* - an address where a contract lived, but was destroyed
*
* Furthermore, `isContract` will also return true if the target contract within
* the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
* which only has an effect at the end of a transaction.
* ====
*
* [IMPORTANT]
* ====
* You shouldn't rely on `isContract` to protect against flash loan attacks!
*
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
* constructor.
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize/address.code.length, which returns 0
// for contracts in construction, since the code is only stored at the end
// of the constructor execution.
return account.code.length > 0;
}
/**
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
* `recipient`, forwarding all available gas and reverting on errors.
*
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
* of certain opcodes, possibly making contracts go over the 2300 gas limit
* imposed by `transfer`, making them unable to receive funds via
* `transfer`. {sendValue} removes this limitation.
*
* https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
*
* IMPORTANT: because control is transferred to `recipient`, care must be
* taken to not create reentrancy vulnerabilities. Consider using
* {ReentrancyGuard} or the
* https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
*/
function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");
(bool success, ) = recipient.call{value: amount}("");
require(success, "Address: unable to send value, recipient may have reverted");
}
/**
* @dev Performs a Solidity function call using a low level `call`. A
* plain `call` is an unsafe replacement for a function call: use this
* function instead.
*
* If `target` reverts with a revert reason, it is bubbled up by this
* function (like regular Solidity function calls).
*
* Returns the raw returned data. To convert to the expected return value,
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
*
* Requirements:
*
* - `target` must be a contract.
* - calling `target` with `data` must not revert.
*
* _Available since v3.1._
*/
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, "Address: low-level call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
* `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return functionCallWithValue(target, data, 0, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but also transferring `value` wei to `target`.
*
* Requirements:
*
* - the calling contract must have an ETH balance of at least `value`.
* - the called Solidity function must be `payable`.
*
* _Available since v3.1._
*/
function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}
/**
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
* with `errorMessage` as a fallback revert reason when `target` reverts.
*
* _Available since v3.1._
*/
function functionCallWithValue(
address target,
bytes memory data,
uint256 value,
string memory errorMessage
) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
return functionStaticCall(target, data, "Address: low-level static call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a static call.
*
* _Available since v3.3._
*/
function functionStaticCall(
address target,
bytes memory data,
string memory errorMessage
) internal view returns (bytes memory) {
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
}
/**
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
* but performing a delegate call.
*
* _Available since v3.4._
*/
function functionDelegateCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
(bool success, bytes memory returndata) = target.delegatecall(data);
return verifyCallResultFromTarget(target, success, returndata, errorMessage);
}
/**
* @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
* the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
*
* _Available since v4.8._
*/
function verifyCallResultFromTarget(
address target,
bool success,
bytes memory returndata,
string memory errorMessage
) internal view returns (bytes memory) {
if (success) {
if (returndata.length == 0) {
// only check isContract if the call was successful and the return data is empty
// otherwise we already know that it was a contract
require(isContract(target), "Address: call to non-contract");
}
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
/**
* @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason or using the provided one.
*
* _Available since v4.3._
*/
function verifyCallResult(
bool success,
bytes memory returndata,
string memory errorMessage
) internal pure returns (bytes memory) {
if (success) {
return returndata;
} else {
_revert(returndata, errorMessage);
}
}
function _revert(bytes memory returndata, string memory errorMessage) private pure {
// Look for revert reason and bubble it up if present
if (returndata.length > 0) {
// The easiest way to bubble the revert reason is using memory via assembly
/// @solidity memory-safe-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)
pragma solidity ^0.8.0;
import {Initializable} from "../proxy/utils/Initializable.sol";
/**
* @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 ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
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;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
import "../interfaces/IGame.sol";
import "../interfaces/IUniversalCashier.sol";
import "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/access/Ownable2StepUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/security/ReentrancyGuardUpgradeable.sol";
contract RingADuck is IGame, PausableUpgradeable, Ownable2StepUpgradeable, ReentrancyGuardUpgradeable {
// References
address public proxyManager;
IUniversalCashier public cashier;
// Game configuration
uint256 public constant PLAY_COST = 1 ether; // 1 S per game
uint256 public constant RINGS_PER_GAME = 3; // 3 rings per game
// MEGA DUCK configuration
uint256 public constant MEGA_MULTIPLIER = 100; // 100x multiplier
uint256 public constant MEGA_DURATION = 10 minutes;
uint256 public constant MEGA_CHANCE = 1; // 0.01% chance (1 in 10000)
uint256 public lastMegaDuckTime;
bool public isMegaDuckActive;
// Duck prize configuration
struct DuckPrize {
uint256 value; // Prize value in wei
uint256 probability; // Probability in basis points (100 = 1%)
}
// Duck types and their probabilities
DuckPrize[] public duckPrizes;
// Bonus features
uint256 public constant BONUS_ROUND_CHANCE = 500; // 5% chance
uint256 public constant BONUS_MULTIPLIER = 2; // 2x multiplier
uint256 public constant TRIPLE_MATCH_BONUS = 5000; // 50% bonus for matching 3
// Game state
struct Game {
address player;
bool completed;
uint256 timestamp;
uint256[] ringValues; // Values of ducks hit
bool bonusRound; // Whether this was a bonus round
uint256 totalPayout;
}
mapping(uint256 => Game) public games;
uint256 public currentGameId;
// House stats
uint256 public totalGamesPlayed;
uint256 public totalPaid;
uint256 public houseProfits;
// Add prepaid plays tracking
mapping(address => uint256) public prepaidPlays;
// Bulk purchase tiers
struct DiscountTier {
uint256 minPlays;
uint256 discount; // In basis points (100 = 1%)
}
DiscountTier[] public discountTiers;
// Constants
uint256 public constant MIN_PREPAID = 1; // Minimum 1 play
uint256 public constant MAX_PREPAID = 100; // Maximum 100 plays
// Events
event GameStarted(uint256 indexed gameId, address indexed player, bool isBonusRound);
event RingThrown(uint256 indexed gameId, uint256 ringNumber, uint256 value);
event GameCompleted(
uint256 indexed gameId,
address indexed player,
uint256[] values,
bool bonusRound,
uint256 totalPayout,
uint256 houseFee
);
event MegaDuckActivated(uint256 timestamp, uint256 duration);
event MegaDuckDeactivated(uint256 timestamp);
event MegaDuckCaught(uint256 indexed gameId, address indexed player, uint256 amount);
event PrepaidPlaysAdded(address indexed player, uint256 plays, uint256 cost);
event PrepaidPlayUsed(address indexed player, uint256 remainingPlays);
function initialize(address _proxyManager, address _cashier) public initializer {
__Pausable_init();
__Ownable2Step_init();
__ReentrancyGuard_init();
proxyManager = _proxyManager;
cashier = IUniversalCashier(_cashier);
// Initialize duck prize configuration
// Common ducks (75% chance total)
duckPrizes.push(DuckPrize({value: 0.2 ether, probability: 3500})); // 35% - 0.2 S
duckPrizes.push(DuckPrize({value: 0.3 ether, probability: 2000})); // 20% - 0.3 S
duckPrizes.push(DuckPrize({value: 0.5 ether, probability: 2000})); // 20% - 0.5 S
// Uncommon ducks (20% chance total)
duckPrizes.push(DuckPrize({value: 0.8 ether, probability: 1200})); // 12% - 0.8 S
duckPrizes.push(DuckPrize({value: 1.2 ether, probability: 800})); // 8% - 1.2 S
// Rare ducks (5% chance total)
duckPrizes.push(DuckPrize({value: 2 ether, probability: 300})); // 3% - 2.0 S
duckPrizes.push(DuckPrize({value: 5 ether, probability: 180})); // 1.8% - 5.0 S
duckPrizes.push(DuckPrize({value: 10 ether, probability: 20})); // 0.2% - 10.0 S
// Setup new discount tiers
discountTiers.push(DiscountTier({minPlays: 5, discount: 300})); // 3% off for 5+ plays
discountTiers.push(DiscountTier({minPlays: 20, discount: 500})); // 5% off for 20+ plays
discountTiers.push(DiscountTier({minPlays: 50, discount: 700})); // 7% off for 50+ plays
discountTiers.push(DiscountTier({minPlays: 100, discount: 1000})); // 10% off for 100 plays
}
function getDiscountForPlays(uint256 plays) public view returns (uint256) {
uint256 discount = 0;
for (uint256 i = 0; i < discountTiers.length; i++) {
if (plays >= discountTiers[i].minPlays) {
discount = discountTiers[i].discount;
}
}
return discount;
}
function buyPrepaidPlays(uint256 numberOfPlays) external {
require(numberOfPlays >= MIN_PREPAID, "Min 1 play");
require(numberOfPlays <= MAX_PREPAID, "Max 100 plays");
uint256 totalCost = PLAY_COST * numberOfPlays;
uint256 discount = getDiscountForPlays(numberOfPlays);
// Apply discount
if (discount > 0) {
totalCost = totalCost * (10000 - discount) / 10000;
}
// Debit through cashier
require(cashier.debitPlayer(msg.sender, totalCost), "Payment failed");
prepaidPlays[msg.sender] += numberOfPlays;
emit PrepaidPlaysAdded(msg.sender, numberOfPlays, totalCost);
}
function play(address player, uint256 amount) external payable override {
require(msg.sender == proxyManager, "Only proxy manager");
// Check if using prepaid plays
if (amount == 0 && prepaidPlays[player] > 0) {
prepaidPlays[player]--;
emit PrepaidPlayUsed(player, prepaidPlays[player]);
} else {
require(amount == PLAY_COST, "Invalid play cost");
}
// Check and update MEGA DUCK status
_updateMegaDuckStatus();
// Determine if this is a bonus round (5% chance)
bool isBonusRound = _random(currentGameId, "BONUS") <= BONUS_ROUND_CHANCE;
currentGameId++;
games[currentGameId] = Game({
player: player,
completed: false,
timestamp: block.timestamp,
ringValues: new uint256[](RINGS_PER_GAME),
bonusRound: isBonusRound,
totalPayout: 0
});
totalGamesPlayed++;
emit GameStarted(currentGameId, player, isBonusRound);
}
function _updateMegaDuckStatus() internal {
// Check if MEGA DUCK should be activated
if (!isMegaDuckActive &&
block.timestamp >= lastMegaDuckTime + 1 days &&
_random(block.timestamp, "MEGA_TRIGGER") <= MEGA_CHANCE) {
isMegaDuckActive = true;
lastMegaDuckTime = block.timestamp;
emit MegaDuckActivated(block.timestamp, MEGA_DURATION);
}
// Check if MEGA DUCK should be deactivated
if (isMegaDuckActive &&
block.timestamp >= lastMegaDuckTime + MEGA_DURATION) {
isMegaDuckActive = false;
emit MegaDuckDeactivated(block.timestamp);
}
}
function throwRings(uint256 gameId, uint256[] calldata duckIndices) external onlyOwner {
Game storage game = games[gameId];
require(!game.completed, "Game already completed");
require(duckIndices.length == RINGS_PER_GAME, "Invalid number of rings");
uint256 totalWin = 0;
bool caughtMegaDuck = false;
// Process each ring throw
for (uint256 i = 0; i < RINGS_PER_GAME; i++) {
require(duckIndices[i] < duckPrizes.length, "Invalid duck index");
uint256 value = duckPrizes[duckIndices[i]].value;
// Check for MEGA DUCK catch (0.01% chance when active)
if (isMegaDuckActive && _random(block.timestamp + i, "MEGA_CATCH") <= MEGA_CHANCE) {
value *= MEGA_MULTIPLIER;
caughtMegaDuck = true;
}
game.ringValues[i] = value;
totalWin += value;
emit RingThrown(gameId, i, value);
}
// Check for triple match bonus
if (_checkTripleMatch(game.ringValues)) {
totalWin += (totalWin * TRIPLE_MATCH_BONUS) / 10000;
}
// Apply bonus round multiplier if applicable
if (game.bonusRound) {
totalWin *= BONUS_MULTIPLIER;
}
game.totalPayout = totalWin;
game.completed = true;
// Update stats
totalPaid += totalWin;
houseProfits += (PLAY_COST - totalWin);
// Send payout if won
if (totalWin > 0) {
cashier.creditPlayer{value: totalWin}(game.player, totalWin);
}
if (caughtMegaDuck) {
emit MegaDuckCaught(gameId, game.player, totalWin);
}
emit GameCompleted(
gameId,
game.player,
game.ringValues,
game.bonusRound,
totalWin,
0 // No house fee
);
}
function _checkTripleMatch(uint256[] memory values) internal pure returns (bool) {
return values[0] == values[1] && values[1] == values[2];
}
function _random(uint256 seed, string memory tag) internal view returns (uint256) {
return uint256(keccak256(abi.encodePacked(
block.timestamp,
block.prevrandao,
seed,
tag
))) % 10000; // Returns 0-9999 for probability calculations
}
// View functions
function getGameDetails(uint256 gameId) external view returns (
address player,
bool completed,
uint256 timestamp,
uint256[] memory ringValues,
bool bonusRound,
uint256 totalPayout
) {
Game storage game = games[gameId];
return (
game.player,
game.completed,
game.timestamp,
game.ringValues,
game.bonusRound,
game.totalPayout
);
}
function getHouseStats() external view returns (
uint256 _totalGames,
uint256 _totalPaid,
uint256 _houseProfits
) {
return (totalGamesPlayed, totalPaid, houseProfits);
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
interface IGame {
function play(address player, uint256 amount) external payable;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;
interface IUniversalCashier {
function deposit() external payable;
function withdraw(uint256 amount) external;
function debitPlayer(address player, uint256 amount) external returns (bool);
function creditPlayer(address player, uint256 amount) external payable;
function getBalance(address player) external view returns (uint256);
function authorizeGame(address game, bool status) external;
function setTreasury(address _treasury) external;
}