Contract Name:
GamblerShiba
Contract Source Code:
File 1 of 1 : GamblerShiba
// SPDX-License-Identifier: Unlicensed
pragma solidity ^0.6.12;
//
/*
* @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 GSN 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 payable) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
//
/**
* @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 () internal {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = 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");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
//
/**
* @dev Interface of the ERC20 standard as defined in the EIP.
*/
interface IERC20 {
/**
* @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 `recipient`.
*
* Returns a boolean value indicating whether the operation succeeded.
*
* Emits a {Transfer} event.
*/
function transfer(address recipient, 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 `sender` to `recipient` 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 sender, address recipient, uint256 amount) external returns (bool);
/**
* @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 Wrappers over Solidity's arithmetic operations with added overflow
* checks.
*
* Arithmetic operations in Solidity wrap on overflow. This can easily result
* in bugs, because programmers usually assume that an overflow raises an
* error, which is the standard behavior in high level programming languages.
* `SafeMath` restores this intuition by reverting the transaction when an
* operation overflows.
*
* Using this library instead of the unchecked operations eliminates an entire
* class of bugs, so it's recommended to use it always.
*/
library SafeMath {
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
/**
* @dev Returns the substraction of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b > a) return (false, 0);
return (true, a - b);
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*
* _Available since v3.4._
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a / b);
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*
* _Available since v3.4._
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
if (b == 0) return (false, 0);
return (true, a % b);
}
/**
* @dev Returns the addition of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `+` operator.
*
* Requirements:
*
* - Addition cannot overflow.
*/
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting on
* overflow (when the result is negative).
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
require(b <= a, "SafeMath: subtraction overflow");
return a - b;
}
/**
* @dev Returns the multiplication of two unsigned integers, reverting on
* overflow.
*
* Counterpart to Solidity's `*` operator.
*
* Requirements:
*
* - Multiplication cannot overflow.
*/
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) return 0;
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting on
* division by zero. The result is rounded towards zero.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: division by zero");
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting when dividing by zero.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
require(b > 0, "SafeMath: modulo by zero");
return a % b;
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {trySub}.
*
* Counterpart to Solidity's `-` operator.
*
* Requirements:
*
* - Subtraction cannot overflow.
*/
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
return a - b;
}
/**
* @dev Returns the integer division of two unsigned integers, reverting with custom message on
* division by zero. The result is rounded towards zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryDiv}.
*
* Counterpart to Solidity's `/` operator. Note: this function uses a
* `revert` opcode (which leaves remaining gas untouched) while Solidity
* uses an invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a / b;
}
/**
* @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
* reverting with custom message when dividing by zero.
*
* CAUTION: This function is deprecated because it requires allocating memory for the error
* message unnecessarily. For custom revert reasons use {tryMod}.
*
* Counterpart to Solidity's `%` operator. This function uses a `revert`
* opcode (which leaves remaining gas untouched) while Solidity uses an
* invalid opcode to revert (consuming all remaining gas).
*
* Requirements:
*
* - The divisor cannot be zero.
*/
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b > 0, errorMessage);
return a % b;
}
}
//
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}
//
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
* ====
*/
function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}
/**
* @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://diligence.consensys.net/posts/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/v0.5.11/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");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(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 functionCall(target, data, "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");
return _functionCallWithValue(target, data, value, errorMessage);
}
function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {
// 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
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
//
/**
* @dev Library for managing
* https://en.wikipedia.org/wiki/Set_(abstract_data_type)[sets] of primitive
* types.
*
* Sets have the following properties:
*
* - Elements are added, removed, and checked for existence in constant time
* (O(1)).
* - Elements are enumerated in O(n). No guarantees are made on the ordering.
*
* ```
* contract Example {
* // Add the library methods
* using EnumerableSet for EnumerableSet.AddressSet;
*
* // Declare a set state variable
* EnumerableSet.AddressSet private mySet;
* }
* ```
*
* As of v3.3.0, sets of type `bytes32` (`Bytes32Set`), `address` (`AddressSet`)
* and `uint256` (`UintSet`) are supported.
*/
library EnumerableSet {
// To implement this library for multiple types with as little code
// repetition as possible, we write it in terms of a generic Set type with
// bytes32 values.
// The Set implementation uses private functions, and user-facing
// implementations (such as AddressSet) are just wrappers around the
// underlying Set.
// This means that we can only create new EnumerableSets for types that fit
// in bytes32.
struct Set {
// Storage of set values
bytes32[] _values;
// Position of the value in the `values` array, plus 1 because index 0
// means a value is not in the set.
mapping(bytes32 => uint256) _indexes;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function _add(Set storage set, bytes32 value) private returns (bool) {
if (!_contains(set, value)) {
set._values.push(value);
// The value is stored at length-1, but we add 1 to all indexes
// and use 0 as a sentinel value
set._indexes[value] = set._values.length;
return true;
} else {
return false;
}
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function _remove(Set storage set, bytes32 value) private returns (bool) {
// We read and store the value's index to prevent multiple reads from the same storage slot
uint256 valueIndex = set._indexes[value];
if (valueIndex != 0) {
// Equivalent to contains(set, value)
// To delete an element from the _values array in O(1), we swap the element to delete with the last one in
// the array, and then remove the last element (sometimes called as 'swap and pop').
// This modifies the order of the array, as noted in {at}.
uint256 toDeleteIndex = valueIndex - 1;
uint256 lastIndex = set._values.length - 1;
if (lastIndex != toDeleteIndex) {
bytes32 lastvalue = set._values[lastIndex];
// Move the last value to the index where the value to delete is
set._values[toDeleteIndex] = lastvalue;
// Update the index for the moved value
set._indexes[lastvalue] = valueIndex; // Replace lastvalue's index to valueIndex
}
// Delete the slot where the moved value was stored
set._values.pop();
// Delete the index for the deleted slot
delete set._indexes[value];
return true;
} else {
return false;
}
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function _contains(Set storage set, bytes32 value) private view returns (bool) {
return set._indexes[value] != 0;
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function _length(Set storage set) private view returns (uint256) {
return set._values.length;
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function _at(Set storage set, uint256 index) private view returns (bytes32) {
return set._values[index];
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function _values(Set storage set) private view returns (bytes32[] memory) {
return set._values;
}
// Bytes32Set
struct Bytes32Set {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _add(set._inner, value);
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(Bytes32Set storage set, bytes32 value) internal returns (bool) {
return _remove(set._inner, value);
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(Bytes32Set storage set, bytes32 value) internal view returns (bool) {
return _contains(set._inner, value);
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(Bytes32Set storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(Bytes32Set storage set, uint256 index) internal view returns (bytes32) {
return _at(set._inner, index);
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(Bytes32Set storage set) internal view returns (bytes32[] memory) {
return _values(set._inner);
}
// AddressSet
struct AddressSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(AddressSet storage set, address value) internal returns (bool) {
return _add(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(AddressSet storage set, address value) internal returns (bool) {
return _remove(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(AddressSet storage set, address value) internal view returns (bool) {
return _contains(set._inner, bytes32(uint256(uint160(value))));
}
/**
* @dev Returns the number of values in the set. O(1).
*/
function length(AddressSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(AddressSet storage set, uint256 index) internal view returns (address) {
return address(uint160(uint256(_at(set._inner, index))));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(AddressSet storage set) internal view returns (address[] memory) {
bytes32[] memory store = _values(set._inner);
address[] memory result;
assembly {
result := store
}
return result;
}
// UintSet
struct UintSet {
Set _inner;
}
/**
* @dev Add a value to a set. O(1).
*
* Returns true if the value was added to the set, that is if it was not
* already present.
*/
function add(UintSet storage set, uint256 value) internal returns (bool) {
return _add(set._inner, bytes32(value));
}
/**
* @dev Removes a value from a set. O(1).
*
* Returns true if the value was removed from the set, that is if it was
* present.
*/
function remove(UintSet storage set, uint256 value) internal returns (bool) {
return _remove(set._inner, bytes32(value));
}
/**
* @dev Returns true if the value is in the set. O(1).
*/
function contains(UintSet storage set, uint256 value) internal view returns (bool) {
return _contains(set._inner, bytes32(value));
}
/**
* @dev Returns the number of values on the set. O(1).
*/
function length(UintSet storage set) internal view returns (uint256) {
return _length(set._inner);
}
/**
* @dev Returns the value stored at position `index` in the set. O(1).
*
* Note that there are no guarantees on the ordering of values inside the
* array, and it may change when more values are added or removed.
*
* Requirements:
*
* - `index` must be strictly less than {length}.
*/
function at(UintSet storage set, uint256 index) internal view returns (uint256) {
return uint256(_at(set._inner, index));
}
/**
* @dev Return the entire set in an array
*
* WARNING: This operation will copy the entire storage to memory, which can be quite expensive. This is designed
* to mostly be used by view accessors that are queried without any gas fees. Developers should keep in mind that
* this function has an unbounded cost, and using it as part of a state-changing function may render the function
* uncallable if the set grows to a point where copying to memory consumes too much gas to fit in a block.
*/
function values(UintSet storage set) internal view returns (uint256[] memory) {
bytes32[] memory store = _values(set._inner);
uint256[] memory result;
assembly {
result := store
}
return result;
}
}
//
abstract contract GShibaRNG is Ownable {
/**
* Tiers
* 0 - Platinum
* 1 - Gold
* 2 - Silver
* 3 - Bronze
*/
using SafeMath for uint256;
using EnumerableSet for EnumerableSet.AddressSet;
address payable public platinumWinner;
address payable public goldWinner;
address payable public silverWinner;
address payable public bronzeWinner;
EnumerableSet.AddressSet platinumSet;
EnumerableSet.AddressSet goldSet;
EnumerableSet.AddressSet silverSet;
EnumerableSet.AddressSet bronzeSet;
EnumerableSet.AddressSet[] gamblingWallets;
uint256 public platinumMinWeight = 2 * 10 ** 5;
uint256 public goldMinWeight = 10 ** 5;
uint256 public silverMinWeight = 5 * 10 ** 4;
mapping(address => uint256) public gamblingWeights;
mapping(address => uint256) public ethAmounts;
mapping(address => bool) public excludedFromGambling;
mapping(address => bool) public isEthAmountNegative;
IUniswapV2Router02 public uniswapV2Router;
uint256 public feeMin = 0.1 * 10 ** 18;
uint256 public feeMax = 0.3 * 10 ** 18;
uint256 internal lastTotalFee;
uint256 public ethWeight = 10 ** 10;
mapping(address => bool) isGoverner;
address[] governers;
event newWinnersSelected(uint256 timestamp, address platinumWinner, address goldWinner, address silverWinner, address bronzeWinner,
uint256 platinumEthAmount, uint256 goldEthAmount, uint256 silverEthAmount, uint256 bronzeEthAmount,
uint256 platinumGShibaAmount, uint256 goldGShibaAmount, uint256 silverGShibaAmount, uint256 bronzeGShibaAmount,
uint256 lastTotalFee);
modifier onlyGoverner() {
require(isGoverner[_msgSender()], "Not governer");
_;
}
constructor(address payable _initialWinner) public
{
platinumWinner = _initialWinner;
goldWinner = _initialWinner;
silverWinner = _initialWinner;
bronzeWinner = _initialWinner;
platinumSet.add(_initialWinner);
goldSet.add(_initialWinner);
silverSet.add(_initialWinner);
bronzeSet.add(_initialWinner);
gamblingWallets.push(platinumSet);
gamblingWallets.push(goldSet);
gamblingWallets.push(silverSet);
gamblingWallets.push(bronzeSet);
uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D); // UniswapV2 for Ethereum network
isGoverner[owner()] = true;
governers.push(owner());
}
function checkTierFromWeight(uint256 weight)
public
view
returns(uint256)
{
if (weight > platinumMinWeight) {
return 0;
}
if (weight > goldMinWeight) {
return 1;
}
if (weight > silverMinWeight) {
return 2;
}
return 3;
}
function calcWeight(uint256 ethAmount, uint256 gShibaAmount) public view returns(uint256) {
return ethAmount.div(10 ** 13) + gShibaAmount.div(10 ** 13).div(ethWeight);
}
function addNewWallet(address _account, uint256 tier) internal {
gamblingWallets[tier].add(_account);
}
function removeWallet(address _account, uint256 tier) internal {
gamblingWallets[tier].remove(_account);
}
function addWalletToGamblingList(address _account, uint256 _amount) internal {
if (!excludedFromGambling[_account]) {
address[] memory path = new address[](2);
path[0] = uniswapV2Router.WETH();
path[1] = address(this);
uint256 ethAmount = uniswapV2Router.getAmountsIn(_amount, path)[0];
uint256 oldWeight = gamblingWeights[_account];
if (isEthAmountNegative[_account]) {
if (ethAmount > ethAmounts[_account]) {
ethAmounts[_account] = ethAmount - ethAmounts[_account];
isEthAmountNegative[_account] = false;
gamblingWeights[_account] = calcWeight(ethAmounts[_account], IERC20(address(this)).balanceOf(_account) + _amount);
} else {
ethAmounts[_account] = ethAmounts[_account] - ethAmount;
gamblingWeights[_account] = 0;
}
} else {
ethAmounts[_account] += ethAmount;
gamblingWeights[_account] = calcWeight(ethAmounts[_account], IERC20(address(this)).balanceOf(_account) + _amount);
}
if (!isEthAmountNegative[_account]) {
uint256 oldTier = checkTierFromWeight(oldWeight);
uint256 newTier = checkTierFromWeight(gamblingWeights[_account]);
if (oldTier != newTier) {
removeWallet(_account, oldTier);
}
addNewWallet(_account, newTier);
}
}
}
function removeWalletFromGamblingList(address _account, uint256 _amount) internal {
if (!excludedFromGambling[_account]) {
address[] memory path = new address[](2);
path[0] = uniswapV2Router.WETH();
path[1] = address(this);
uint256 ethAmount = uniswapV2Router.getAmountsIn(_amount, path)[0];
uint256 oldWeight = gamblingWeights[_account];
if (isEthAmountNegative[_account]) {
ethAmounts[_account] += ethAmount;
gamblingWeights[_account] = 0;
} else if (ethAmounts[_account] >= ethAmount) {
ethAmounts[_account] -= ethAmount;
gamblingWeights[_account] = calcWeight(ethAmounts[_account], IERC20(address(this)).balanceOf(_account));
} else {
ethAmounts[_account] = ethAmount - ethAmounts[_account];
isEthAmountNegative[_account] = true;
gamblingWeights[_account] = 0;
}
uint256 oldTier = checkTierFromWeight(oldWeight);
removeWallet(_account, oldTier);
}
}
function rand(uint256 max)
private
view
returns(uint256)
{
if (max == 1) {
return 0;
}
uint256 seed = uint256(keccak256(abi.encodePacked(
block.timestamp + block.difficulty +
((uint256(keccak256(abi.encodePacked(block.coinbase)))) / (now)) +
block.gaslimit +
((uint256(keccak256(abi.encodePacked(msg.sender)))) / (now)) +
block.number
)));
return (seed - ((seed / (max - 1)) * (max - 1))) + 1;
}
function checkAndChangeGamblingWinner() internal {
uint256 randFee = rand(feeMax - feeMin) + feeMin;
if (lastTotalFee >= randFee) {
uint256 platinumWinnerIndex = rand(gamblingWallets[0].length());
uint256 goldWinnerIndex = rand(gamblingWallets[1].length());
uint256 silverWinnerIndex = rand(gamblingWallets[2].length());
uint256 bronzeWinnerIndex = rand(gamblingWallets[3].length());
platinumWinner = payable(gamblingWallets[0].at(platinumWinnerIndex));
goldWinner = payable(gamblingWallets[1].at(goldWinnerIndex));
silverWinner = payable(gamblingWallets[2].at(silverWinnerIndex));
bronzeWinner = payable(gamblingWallets[3].at(bronzeWinnerIndex));
emit newWinnersSelected(
block.timestamp, platinumWinner, goldWinner, silverWinner, bronzeWinner,
ethAmounts[platinumWinner], ethAmounts[goldWinner], ethAmounts[silverWinner], ethAmounts[bronzeWinner],
IERC20(address(this)).balanceOf(platinumWinner), IERC20(address(this)).balanceOf(goldWinner), IERC20(address(this)).balanceOf(silverWinner), IERC20(address(this)).balanceOf(bronzeWinner),
lastTotalFee
);
}
}
/**
* Mutations
*/
function setEthWeight(uint256 _ethWeight) external onlyGoverner {
ethWeight = _ethWeight;
}
function setTierWeights(uint256 _platinumMin, uint256 _goldMin, uint256 _silverMin) external onlyGoverner {
require(_platinumMin > _goldMin && _goldMin > _silverMin, "Weights should be descending order");
platinumMinWeight = _platinumMin;
goldMinWeight = _goldMin;
silverMinWeight = _silverMin;
}
function setFeeMinMax(uint256 _feeMin, uint256 _feeMax) external onlyGoverner {
require(_feeMin < _feeMax, "feeMin should be smaller than feeMax");
feeMin = _feeMin;
feeMax = _feeMax;
}
function addGoverner(address _governer) public onlyGoverner {
if (!isGoverner[_governer]) {
isGoverner[_governer] = true;
governers.push(_governer);
}
}
function removeGoverner(address _governer) external onlyGoverner {
if (isGoverner[_governer]) {
isGoverner[_governer] = false;
for (uint i = 0; i < governers.length; i ++) {
if (governers[i] == _governer) {
governers[i] = governers[governers.length - 1];
governers.pop();
break;
}
}
}
}
function addV1Users(address[] memory _users) external onlyOwner {
uint256 len = _users.length;
for (uint i = 0; i < len; i ++) {
address user = _users[i];
uint256 gShibabalance = IERC20(address(this)).balanceOf(user);
uint256 ethAmount = gShibabalance.div(10 ** 10);
uint256 weight = calcWeight(ethAmount, gShibabalance);
uint256 tier = checkTierFromWeight(weight);
gamblingWallets[tier].add(user);
ethAmounts[user] = ethAmount;
gamblingWeights[user] = weight;
}
}
}
/*
Gambler Shiba
https://t.me/gshiba_official
More info:
* Instead of giving equal weights to all users, we give weights based on their purchase token amount and contributed ETH amount
* If you sell or transfer tokens to other wallets, you lose your ticket, but as soon as you buy again you regain your ticket
* There's no min eligible amount. Even if you buy 1 token, you have the very little chance to get rewarded.
*/
//
// Contract implementation
contract GamblerShiba is IERC20, Ownable, GShibaRNG {
using SafeMath for uint256;
using Address for address;
mapping (address => uint256) private _tOwned;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => uint256) public timestamp;
uint256 private eligibleRNG = block.timestamp;
mapping (address => bool) private _isExcludedFromFee;
mapping (address => bool) private _isBlackListedBot;
uint256 private _tTotal = 1000000000000 * 10 ** 18; //1,000,000,000,000
uint256 public _coolDown = 30 seconds;
string private _name = 'Gambler Shiba';
string private _symbol = 'GSHIBA';
uint8 private _decimals = 18;
uint256 public _devFee = 12;
uint256 private _previousdevFee = _devFee;
address payable private _feeWalletAddress;
address public uniswapV2Pair;
bool inSwap = false;
bool public swapEnabled = true;
bool public feeEnabled = true;
bool public tradingEnabled = false;
bool public cooldownEnabled = true;
uint256 public _maxTxAmount = _tTotal / 400;
uint256 private _numOfTokensToExchangeFordev = 5000000000000000;
address public migrator;
event SwapEnabledUpdated(bool enabled);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor (address payable feeWalletAddress)
GShibaRNG(feeWalletAddress)
public
{
_feeWalletAddress = feeWalletAddress;
_tOwned[_msgSender()] = _tTotal;
// Create a uniswap pair for this new token
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory())
.createPair(address(this), uniswapV2Router.WETH());
// Exclude owner and this contract from fee
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
// Excluded gshiba, pair, owner from gambling list
excludedFromGambling[address(this)] = true;
excludedFromGambling[uniswapV2Pair] = true;
excludedFromGambling[owner()] = true;
emit Transfer(address(0), _msgSender(), _tTotal);
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint8) {
return _decimals;
}
function totalSupply() public view override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _tOwned[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, amount);
return true;
}
function allowance(address owner, address spender) public view override returns (uint256) {
return _allowances[owner][spender];
}
function approve(address spender, uint256 amount) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
return true;
}
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
return true;
}
function isBlackListed(address account) public view returns (bool) {
return _isBlackListedBot[account];
}
function setExcludeFromFee(address account, bool excluded) external onlyGoverner {
_isExcludedFromFee[account] = excluded;
}
function addBotToBlackList(address account) external onlyOwner() {
require(account != 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D, 'We can not blacklist Uniswap router.');
require(!_isBlackListedBot[account], "Account is already blacklisted");
_isBlackListedBot[account] = true;
}
function addBotsToBlackList(address[] memory bots) external onlyOwner() {
for (uint i = 0; i < bots.length; i++) {
_isBlackListedBot[bots[i]] = true;
}
}
function removeBotFromBlackList(address account) external onlyOwner() {
require(_isBlackListedBot[account], "Account is not blacklisted");
_isBlackListedBot[account] = false;
}
function removeAllFee() private {
if(_devFee == 0) return;
_previousdevFee = _devFee;
_devFee = 0;
}
function restoreAllFee() private {
_devFee = _previousdevFee;
}
function isExcludedFromFee(address account) public view returns(bool) {
return _isExcludedFromFee[account];
}
function setMaxTxPercent(uint256 maxTxPercent) external onlyOwner() {
_maxTxAmount = _tTotal.mul(maxTxPercent).div(
10**2
);
}
function setMaxTxAmount(uint256 maxTx) external onlyOwner() {
_maxTxAmount = maxTx;
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), "ERC20: approve from the zero address");
require(spender != address(0), "ERC20: approve to the zero address");
_allowances[owner][spender] = amount;
emit Approval(owner, spender, amount);
}
function _transfer(address sender, address recipient, uint256 amount) private {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
require(!_isBlackListedBot[recipient], "Go away");
require(!_isBlackListedBot[sender], "Go away");
if(sender != owner() && recipient != owner() && sender != migrator && recipient != migrator) {
require(amount <= _maxTxAmount, "Transfer amount exceeds the max amount.");
// You can't trade this yet until trading enabled, be patient
if (sender == uniswapV2Pair || recipient == uniswapV2Pair) {
require(tradingEnabled, "Trading is not enabled");
}
}
// Cooldown
if(cooldownEnabled) {
if (sender == uniswapV2Pair ) {
// They just bought so add cooldown
timestamp[recipient] = block.timestamp.add(_coolDown);
}
// exclude owner and uniswap
if(sender != owner() && sender != uniswapV2Pair) {
require(block.timestamp >= timestamp[sender], "Cooldown");
}
}
if (sender == uniswapV2Pair) {
if (recipient != owner() && feeEnabled) {
addWalletToGamblingList(recipient, amount);
}
}
// rest of the standard shit below
uint256 contractTokenBalance = balanceOf(address(this));
if (contractTokenBalance >= _maxTxAmount) {
contractTokenBalance = _maxTxAmount;
}
bool overMinTokenBalance = contractTokenBalance >= _numOfTokensToExchangeFordev;
if (!inSwap && swapEnabled && overMinTokenBalance && sender != uniswapV2Pair) {
// We need to swap the current tokens to ETH and send to the dev wallet
swapTokensForEth(contractTokenBalance);
uint256 contractETHBalance = address(this).balance;
if(contractETHBalance > 0) {
sendETHTodev(address(this).balance);
}
}
//indicates if fee should be deducted from transfer
bool takeFee = true;
//if any account belongs to _isExcludedFromFee account then remove the fee
if(_isExcludedFromFee[sender] || _isExcludedFromFee[recipient]){
takeFee = false;
}
// transfer amount, it will take tax and dev fee
_tokenTransfer(sender, recipient, amount, takeFee);
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
// make the swap
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function sendETHTodev(uint256 amount) private {
if (block.timestamp >= eligibleRNG) {
checkAndChangeGamblingWinner();
}
uint256 winnerReward = amount.div(30);
lastTotalFee += winnerReward;
platinumWinner.transfer(winnerReward.mul(4));
goldWinner.transfer(winnerReward.mul(3));
silverWinner.transfer(winnerReward.mul(2));
bronzeWinner.transfer(winnerReward.mul(1));
_feeWalletAddress.transfer(amount.mul(2).div(3));
}
// We are exposing these functions to be able to manual swap and send
// in case the token is highly valued and 5M becomes too much
function manualSwap() external onlyGoverner {
uint256 contractBalance = balanceOf(address(this));
swapTokensForEth(contractBalance);
}
function manualSend() external onlyGoverner {
uint256 contractETHBalance = address(this).balance;
sendETHTodev(contractETHBalance);
}
function setSwapEnabled(bool enabled) external onlyOwner(){
swapEnabled = enabled;
emit SwapEnabledUpdated(enabled);
}
function _tokenTransfer(address sender, address recipient, uint256 amount, bool takeFee) private {
if(!takeFee)
removeAllFee();
_transferStandard(sender, recipient, amount);
if(!takeFee)
restoreAllFee();
}
function _transferStandard(address sender, address recipient, uint256 tAmount) private {
uint256 tdev = tAmount.mul(_devFee).div(100);
uint256 transferAmount = tAmount.sub(tdev);
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_tOwned[recipient] = _tOwned[recipient].add(transferAmount);
// Stop wallets from trying to stay in gambling by transferring to other wallets
removeWalletFromGamblingList(sender, tAmount);
_takedev(tdev);
emit Transfer(sender, recipient, transferAmount);
}
function _takedev(uint256 tdev) private {
_tOwned[address(this)] = _tOwned[address(this)].add(tdev);
}
//to recieve ETH from uniswapV2Router when swaping
receive() external payable {}
function _getMaxTxAmount() private view returns(uint256) {
return _maxTxAmount;
}
function _getETHBalance() public view returns(uint256 balance) {
return address(this).balance;
}
function allowDex(bool _tradingEnabled) external onlyOwner() {
tradingEnabled = _tradingEnabled;
eligibleRNG = block.timestamp + 25 minutes;
}
function toggleCoolDown(bool _cooldownEnabled) external onlyOwner() {
cooldownEnabled = _cooldownEnabled;
}
function toggleFeeEnabled(bool _feeEnabled) external onlyOwner() {
// this is a failsafe if something breaks with mappings we can turn off so no-one gets rekt and can still trade
feeEnabled = _feeEnabled;
}
function setMigrationContract(address _migrator) external onlyGoverner {
excludedFromGambling[_migrator] = true;
_isExcludedFromFee[_migrator] = true;
addGoverner(_migrator);
migrator = _migrator;
}
}
