Contract Name:
TradeGameV5
Contract Source Code:
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)
pragma solidity ^0.8.0;
import "../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.
*
* 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 Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
_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);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (interfaces/IERC20.sol)
pragma solidity ^0.8.0;
import "../token/ERC20/IERC20.sol";
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
* https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
*
* Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
* presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
* need to send a transaction, and thus is not required to hold Ether at all.
*/
interface IERC20Permit {
/**
* @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
* given ``owner``'s signed approval.
*
* IMPORTANT: The same issues {IERC20-approve} has related to transaction
* ordering also apply here.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `deadline` must be a timestamp in the future.
* - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
* over the EIP712-formatted function arguments.
* - the signature must use ``owner``'s current nonce (see {nonces}).
*
* For more information on the signature format, see the
* https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
* section].
*/
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
/**
* @dev Returns the current nonce for `owner`. This value must be
* included whenever a signature is generated for {permit}.
*
* Every successful call to {permit} increases ``owner``'s nonce by one. This
* prevents a signature from being used multiple times.
*/
function nonces(address owner) external view returns (uint256);
/**
* @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
*/
// solhint-disable-next-line func-name-mixedcase
function DOMAIN_SEPARATOR() external view returns (bytes32);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
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 amount of tokens in existence.
*/
function totalSupply() external view returns (uint256);
/**
* @dev Returns the amount of tokens owned by `account`.
*/
function balanceOf(address account) external view returns (uint256);
/**
* @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);
/**
* @dev Moves `amount` tokens from `from` to `to` using the
* allowance mechanism. `amount` 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 amount) external returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";
/**
* @title SafeERC20
* @dev Wrappers around ERC20 operations that throw on failure (when the token
* contract returns false). Tokens that return no value (and instead revert or
* throw on failure) are also supported, non-reverting calls are assumed to be
* successful.
* To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
* which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
*/
library SafeERC20 {
using Address for address;
/**
* @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeTransfer(IERC20 token, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
}
/**
* @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
* calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
*/
function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
_callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
}
/**
* @dev Deprecated. This function has issues similar to the ones found in
* {IERC20-approve}, and its usage is discouraged.
*
* Whenever possible, use {safeIncreaseAllowance} and
* {safeDecreaseAllowance} instead.
*/
function safeApprove(IERC20 token, address spender, uint256 value) internal {
// safeApprove should only be called when setting an initial allowance,
// or when resetting it to zero. To increase and decrease it, use
// 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
require(
(value == 0) || (token.allowance(address(this), spender) == 0),
"SafeERC20: approve from non-zero to non-zero allowance"
);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
}
/**
* @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
uint256 oldAllowance = token.allowance(address(this), spender);
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
}
/**
* @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful.
*/
function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
unchecked {
uint256 oldAllowance = token.allowance(address(this), spender);
require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
}
}
/**
* @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
* non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
* to be set to zero before setting it to a non-zero value, such as USDT.
*/
function forceApprove(IERC20 token, address spender, uint256 value) internal {
bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);
if (!_callOptionalReturnBool(token, approvalCall)) {
_callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
_callOptionalReturn(token, approvalCall);
}
}
/**
* @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
* Revert on invalid signature.
*/
function safePermit(
IERC20Permit token,
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) internal {
uint256 nonceBefore = token.nonces(owner);
token.permit(owner, spender, value, deadline, v, r, s);
uint256 nonceAfter = token.nonces(owner);
require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*/
function _callOptionalReturn(IERC20 token, bytes memory data) private {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
// the target address contains contract code and also asserts for success in the low-level call.
bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
}
/**
* @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
* on the return value: the return value is optional (but if data is returned, it must not be false).
* @param token The token targeted by the call.
* @param data The call data (encoded using abi.encode or one of its variants).
*
* This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
*/
function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
// We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
// we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
// and not revert is the subcall reverts.
(bool success, bytes memory returndata) = address(token).call(data);
return
success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
}
}
// 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 Address {
/**
* @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 v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @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;
}
}
// SPDX-License-Identifier: MIT
// With ERC20 token support and token type defined in startGame function
pragma solidity 0.8.19;
import "@openzeppelin/contracts/utils/Context.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/interfaces/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
contract TradeGameV5 is Ownable {
using SafeERC20 for IERC20;
struct BetGroup {
uint256[] bets;
address[] addresses;
uint256 total;
uint256 distributedCount;
uint256 totalDistributed;
}
struct Round {
bool isOpen;
uint256 startPrice;
uint256 endPrice;
uint256 minBetAmount;
uint256 maxBetAmount;
uint256 poolBetsLimit;
uint256 roundStartTime;
uint256 tradesStartTimeMS;
uint256 tradesEndTimeMS;
BetGroup upBetGroup;
BetGroup downBetGroup;
}
struct Distribution {
uint256 fee;
uint256 feeJackpot;
uint256 totalMinusFee;
uint256 totalMinusJackpotFee;
uint256 totalFees;
uint256 pending;
}
struct MakeTradeStruct {
bytes poolId;
bool upOrDown;
uint256 bet;
}
uint256 public feePercentage = 1000; // 10%
uint256 public feeJackpotPercentage = 0;
address public gameController;
address public feeAddress = msg.sender; //default fee address
address public feeJackpotAddress = msg.sender; //default fee jackpot address
address public gameToken;
bytes public notRunningReason;
bool public isRunning;
bool isEther;
mapping(bytes => Round) public pools;
// Errors
error PendingDistributions();
// Events
event RoundStarted(
bytes poolId,
uint256 timestamp,
uint256 price,
uint256 minTradeAmount,
uint256 maxTradeAmount,
uint256 poolTradesLimit,
bytes indexed indexedPoolId
);
event RoundEnded(
bytes poolId,
uint256 timestamp,
uint256 startPrice,
uint256 endPrice,
bytes indexed indexedPoolId
);
event TradePlaced(
bytes poolId,
address sender,
uint256 amount,
string prediction,
uint256 newTotal,
bytes indexed indexedPoolId,
address indexed indexedSender,
uint256 roundStartTime
);
event TradeReturned(
bytes poolId,
address sender,
uint256 amount
);
event GameStopped(bytes reason);
event GameStarted();
event RoundDistributed(
bytes poolId,
uint totalWinners,
uint from,
uint to,
uint256 timestamp
);
event TradeWinningsSent(
bytes poolId,
address sender,
uint256 tradeAmount,
uint256 winningsAmount,
address indexed indexedSender,
uint256 feePercentage,
uint256 feeJackpotPercentage
);
// Modifiers
modifier onlyGameController() {
require(
msg.sender == gameController,
"Only game controller can do this"
);
_;
}
modifier onlyOpenPool(bytes calldata poolId) {
require(isPoolOpen(poolId), "This pool has a round in progress");
_;
}
modifier onlyGameRunning() {
require(isRunning, "The game is not running");
_;
}
constructor(address newGameController) {
gameController = newGameController;
}
////////////////////////////////
/// Admin role
////////////////////////////////
function changeGameControllerAddress(
address newGameControllerAddress
) external onlyOwner {
require(
newGameControllerAddress != address(0x0),
"Address cannot be zero address"
);
gameController = newGameControllerAddress;
}
function changeGameFeePercentage(
uint256 newFeePercentage
) external onlyOwner {
require(newFeePercentage <= 10000, "Wrong fee percentage value");
feePercentage = newFeePercentage;
}
function changeGameFeeJackpotPercentage(
uint256 newFeeJackpotPercentage
) external onlyOwner {
require(
newFeeJackpotPercentage <= 10000,
"Wrong jackpot fee percentage value"
);
feeJackpotPercentage = newFeeJackpotPercentage;
}
function changeGameFeeAddress(address newFeeAddress) external onlyOwner {
require(
newFeeAddress != address(0x0),
"Address cannot be zero address"
);
feeAddress = newFeeAddress;
}
function changeGameFeeJackpotAddress(
address newFeeJackpotAddress
) external onlyOwner {
require(
newFeeJackpotAddress != address(0x0),
"Address cannot be zero address"
);
feeJackpotAddress = newFeeJackpotAddress;
}
function startGame(address _token, bool _isEther) external onlyOwner {
isRunning = true;
notRunningReason = "";
gameToken = _token;
isEther = _isEther;
emit GameStarted();
}
function stopGame(bytes calldata reason) external onlyOwner {
isRunning = false;
notRunningReason = reason;
emit GameStopped(reason);
}
////////////////////////////////
/// Game controller role
////////////////////////////////
function createPool(
bytes calldata poolId,
uint256 minBetAmount,
uint256 maxBetAmount,
uint256 poolBetsLimit
) external onlyGameController {
pools[poolId].isOpen = true;
pools[poolId].minBetAmount = minBetAmount;
pools[poolId].maxBetAmount = maxBetAmount;
pools[poolId].poolBetsLimit = poolBetsLimit;
}
function startRound(
bytes calldata poolId,
uint256 timeMS,
uint256 tradesStartTimeMS,
uint256 tradesEndTimeMS,
uint256 price
) external onlyGameController onlyOpenPool(poolId) {
Round storage currentRound = pools[poolId];
require(currentRound.startPrice == 0, "Round already started for this pool");
if (currentRound.startPrice == 0) {
require(
isRunning,
"The game is not running, rounds can only be ended at this point"
);
currentRound.startPrice = price;
currentRound.roundStartTime = timeMS;
currentRound.tradesStartTimeMS = tradesStartTimeMS;
currentRound.tradesEndTimeMS = tradesEndTimeMS;
emit RoundStarted(
poolId,
timeMS,
currentRound.startPrice,
currentRound.minBetAmount,
currentRound.maxBetAmount,
currentRound.poolBetsLimit,
poolId
);
} else {
revert PendingDistributions();
}
}
function endRound(
bytes calldata poolId,
uint256 timeMS,
uint256 price,
uint256 batchSize
) external onlyGameController onlyOpenPool(poolId) {
Round storage currentRound = pools[poolId];
if (currentRound.endPrice == 0) {
currentRound.endPrice = price;
emit RoundEnded(
poolId,
timeMS,
currentRound.startPrice,
currentRound.endPrice,
poolId
);
distribute(poolId, batchSize, timeMS);
} else {
revert PendingDistributions();
}
}
function distribute(
bytes calldata poolId,
uint256 batchSize,
uint256 timeMS
) public onlyGameController onlyOpenPool(poolId) {
Round storage round = pools[poolId];
if (
round.upBetGroup.bets.length == 0 ||
round.downBetGroup.bets.length == 0 ||
round.startPrice == round.endPrice
) {
BetGroup storage returnGroupUp = round.upBetGroup;
BetGroup storage returnGroupDown = round.downBetGroup;
if (
returnGroupUp.bets.length > 0 &&
returnGroupUp.bets.length > returnGroupUp.distributedCount
) {
uint256 fromReturnUp = returnGroupUp.distributedCount;
returnBets(poolId, returnGroupUp, batchSize);
emit RoundDistributed(
poolId,
returnGroupUp.bets.length,
fromReturnUp,
returnGroupUp.distributedCount,
timeMS
);
}
if (
returnGroupDown.bets.length > 0 &&
returnGroupDown.bets.length > returnGroupDown.distributedCount
) {
uint256 fromReturnDown = returnGroupDown.distributedCount;
returnBets(poolId, returnGroupDown, batchSize);
emit RoundDistributed(
poolId,
returnGroupDown.bets.length,
fromReturnDown,
returnGroupDown.distributedCount,
timeMS
);
}
if (
returnGroupUp.distributedCount == returnGroupUp.bets.length &&
returnGroupDown.distributedCount == returnGroupDown.bets.length
) {
clearPool(poolId);
}
} else {
BetGroup storage winners = round.startPrice < round.endPrice
? round.upBetGroup
: round.downBetGroup;
BetGroup storage losers = round.startPrice < round.endPrice
? round.downBetGroup
: round.upBetGroup;
uint256 totalRewards = losers.total;
uint256 feeAmount = (totalRewards * feePercentage) / 10000;
uint256 jackpotFeeAmount = (totalRewards * feeJackpotPercentage) /
10000;
uint256 totalAllocations = totalRewards -
feeAmount -
jackpotFeeAmount;
uint256 pending = winners.bets.length - winners.distributedCount;
uint256 limit = pending > batchSize ? batchSize : pending;
uint256 to = winners.distributedCount + limit;
for (uint i = winners.distributedCount; i < to; i++) {
uint256 winnings = (winners.bets[i] * totalAllocations) /
winners.total;
sendEther(winners.addresses[i], winnings + winners.bets[i]);
emit TradeWinningsSent(
poolId,
winners.addresses[i],
winners.bets[i],
winnings,
winners.addresses[i],
feePercentage,
feeJackpotPercentage
);
winners.totalDistributed = winners.totalDistributed + winnings;
}
emit RoundDistributed(
poolId,
winners.bets.length,
winners.distributedCount,
to,
timeMS
);
winners.distributedCount = to;
if (winners.distributedCount == winners.bets.length) {
sendEther(feeAddress, feeAmount);
sendEther(feeJackpotAddress, jackpotFeeAmount);
//Send leftovers to fee address
uint256 balance = isEther
? getContractBalance()
: IERC20(gameToken).balanceOf(address(this));
sendEther(feeAddress, balance);
clearPool(poolId);
}
}
}
////////////////////////////////
/// User role
////////////////////////////////
function makeTrade(
MakeTradeStruct calldata userTrade
) external payable onlyOpenPool(userTrade.poolId) onlyGameRunning {
uint256 amount = isEther ? msg.value : userTrade.bet;
require(
amount >= pools[userTrade.poolId].minBetAmount,
"Trade amount should be higher than the minimum"
);
require(
amount <= pools[userTrade.poolId].maxBetAmount,
"Trade amount should be lower than the maximum"
);
require(
block.timestamp <= pools[userTrade.poolId].tradesEndTimeMS,
"Round is closing"
);
//Prevent making trade while round starts
require(
block.timestamp >= pools[userTrade.poolId].tradesStartTimeMS,
"Round not started yet"
);
if (!isEther) {
IERC20 token = IERC20(gameToken);
address sender = msg.sender;
uint256 balance = token.balanceOf(sender);
uint256 allowance = token.allowance(sender, address(this));
require(allowance >= amount, "Insufficient allowance");
require(balance >= amount, "Insufficient balance");
// Transfer tokens from sender to contract
token.safeTransferFrom(sender, address(this), amount);
}
BetGroup storage targetBetGroup = userTrade.upOrDown
? pools[userTrade.poolId].upBetGroup
: pools[userTrade.poolId].downBetGroup;
require(
targetBetGroup.bets.length <=
pools[userTrade.poolId].poolBetsLimit - 1,
"Pool is full, wait for next round"
);
uint256 newTotal = addBet(
targetBetGroup,
amount
);
emit TradePlaced(
userTrade.poolId,
msg.sender,
amount,
userTrade.upOrDown ? "UP" : "DOWN",
newTotal,
userTrade.poolId,
msg.sender,
pools[userTrade.poolId].roundStartTime
);
}
////////////////////////////////
/// Private call methods
////////////////////////////////
function clearPool (
bytes calldata poolId
) private {
delete pools[poolId].upBetGroup;
delete pools[poolId].downBetGroup;
delete pools[poolId].startPrice;
delete pools[poolId].endPrice;
}
function addBet(
BetGroup storage betGroup,
uint256 amount
) private returns (uint256) {
betGroup.bets.push(amount);
betGroup.addresses.push(msg.sender);
betGroup.total += amount;
return betGroup.total;
}
function returnBets(
bytes calldata poolId,
BetGroup storage group,
uint256 batchSize
) private {
uint256 pending = group.bets.length - group.distributedCount;
uint256 limit = pending > batchSize ? batchSize : pending;
uint256 to = group.distributedCount + limit;
for (uint i = group.distributedCount; i < to; i++) {
sendEther(group.addresses[i], group.bets[i]);
emit TradeReturned(
poolId,
group.addresses[i],
group.bets[i]
);
}
group.distributedCount = to;
}
function sendEther(address to, uint256 amount) private {
if (amount > 0) {
if (isEther) {
(bool sent, ) = payable(to).call{value: amount}("");
require(sent, "Couldn't send ether");
} else {
IERC20 tokenContract = IERC20(gameToken);
tokenContract.safeTransfer(to, amount);
}
}
}
////////////////////////////////
/// View methods
////////////////////////////////
function getContractBalance() public view returns (uint256) {
return address(this).balance;
}
function getContractBalance(
bool checkTokenBalance
) public view returns (uint256) {
require(
checkTokenBalance,
"checkTokenBalance must be true for token balance"
);
IERC20 tokenContract = IERC20(gameToken);
return tokenContract.balanceOf(address(this));
}
function hasPendingDistributions(
bytes calldata poolId
) external view returns (bool) {
return
(pools[poolId].upBetGroup.bets.length +
pools[poolId].downBetGroup.bets.length) > 0;
}
function isPoolOpen(bytes calldata poolId) public view returns (bool) {
return pools[poolId].isOpen;
}
function isRoundStarted(bytes calldata poolId) public view returns (bool) {
Round storage currentRound = pools[poolId];
return currentRound.startPrice != 0 && currentRound.endPrice == 0;
}
}