Contract Source Code:
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (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 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 {
_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 (last updated v4.8.0) (token/ERC20/ERC20.sol)
pragma solidity ^0.8.0;
import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";
/**
* @dev Implementation of the {IERC20} interface.
*
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20PresetMinterPauser}.
*
* TIP: For a detailed writeup see our guide
* https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
* to implement supply mechanisms].
*
* We have followed general OpenZeppelin Contracts guidelines: functions revert
* instead returning `false` on failure. This behavior is nonetheless
* conventional and does not conflict with the expectations of ERC20
* applications.
*
* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
* This allows applications to reconstruct the allowance for all accounts just
* by listening to said events. Other implementations of the EIP may not emit
* these events, as it isn't required by the specification.
*
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
* functions have been added to mitigate the well-known issues around setting
* allowances. See {IERC20-approve}.
*/
contract ERC20 is Context, IERC20, IERC20Metadata {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
uint256 private _totalSupply;
string private _name;
string private _symbol;
/**
* @dev Sets the values for {name} and {symbol}.
*
* The default value of {decimals} is 18. To select a different value for
* {decimals} you should overload it.
*
* All two of these values are immutable: they can only be set once during
* construction.
*/
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
/**
* @dev Returns the name of the token.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev Returns the symbol of the token, usually a shorter version of the
* name.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev Returns the number of decimals used to get its user representation.
* For example, if `decimals` equals `2`, a balance of `505` tokens should
* be displayed to a user as `5.05` (`505 / 10 ** 2`).
*
* Tokens usually opt for a value of 18, imitating the relationship between
* Ether and Wei. This is the value {ERC20} uses, unless this function is
* overridden;
*
* NOTE: This information is only used for _display_ purposes: it in
* no way affects any of the arithmetic of the contract, including
* {IERC20-balanceOf} and {IERC20-transfer}.
*/
function decimals() public view virtual override returns (uint8) {
return 18;
}
/**
* @dev See {IERC20-totalSupply}.
*/
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
/**
* @dev See {IERC20-balanceOf}.
*/
function balanceOf(address account) public view virtual override returns (uint256) {
return _balances[account];
}
/**
* @dev See {IERC20-transfer}.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - the caller must have a balance of at least `amount`.
*/
function transfer(address to, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
/**
* @dev See {IERC20-allowance}.
*/
function allowance(address owner, address spender) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
/**
* @dev See {IERC20-approve}.
*
* NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
* `transferFrom`. This is semantically equivalent to an infinite approval.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function approve(address spender, uint256 amount) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
/**
* @dev See {IERC20-transferFrom}.
*
* Emits an {Approval} event indicating the updated allowance. This is not
* required by the EIP. See the note at the beginning of {ERC20}.
*
* NOTE: Does not update the allowance if the current allowance
* is the maximum `uint256`.
*
* Requirements:
*
* - `from` and `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
* - the caller must have allowance for ``from``'s tokens of at least
* `amount`.
*/
function transferFrom(
address from,
address to,
uint256 amount
) public virtual override returns (bool) {
address spender = _msgSender();
_spendAllowance(from, spender, amount);
_transfer(from, to, amount);
return true;
}
/**
* @dev Atomically increases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
*/
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, allowance(owner, spender) + addedValue);
return true;
}
/**
* @dev Atomically decreases the allowance granted to `spender` by the caller.
*
* This is an alternative to {approve} that can be used as a mitigation for
* problems described in {IERC20-approve}.
*
* Emits an {Approval} event indicating the updated allowance.
*
* Requirements:
*
* - `spender` cannot be the zero address.
* - `spender` must have allowance for the caller of at least
* `subtractedValue`.
*/
function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = allowance(owner, spender);
require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
/**
* @dev Moves `amount` of tokens from `from` to `to`.
*
* This internal function is equivalent to {transfer}, and can be used to
* e.g. implement automatic token fees, slashing mechanisms, etc.
*
* Emits a {Transfer} event.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `from` must have a balance of at least `amount`.
*/
function _transfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
_beforeTokenTransfer(from, to, amount);
uint256 fromBalance = _balances[from];
require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[from] = fromBalance - amount;
// Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
// decrementing then incrementing.
_balances[to] += amount;
}
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
* the total supply.
*
* Emits a {Transfer} event with `from` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
unchecked {
// Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
_balances[account] += amount;
}
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
/**
* @dev Destroys `amount` tokens from `account`, reducing the
* total supply.
*
* Emits a {Transfer} event with `to` set to the zero address.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens.
*/
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
// Overflow not possible: amount <= accountBalance <= totalSupply.
_totalSupply -= amount;
}
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), amount);
}
/**
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
*
* This internal function is equivalent to `approve`, and can be used to
* e.g. set automatic allowances for certain subsystems, etc.
*
* Emits an {Approval} event.
*
* Requirements:
*
* - `owner` cannot be the zero address.
* - `spender` cannot be the zero address.
*/
function _approve(
address owner,
address spender,
uint256 amount
) internal virtual {
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);
}
/**
* @dev Updates `owner` s allowance for `spender` based on spent `amount`.
*
* Does not update the allowance amount in case of infinite allowance.
* Revert if not enough allowance is available.
*
* Might emit an {Approval} event.
*/
function _spendAllowance(
address owner,
address spender,
uint256 amount
) internal virtual {
uint256 currentAllowance = allowance(owner, spender);
if (currentAllowance != type(uint256).max) {
require(currentAllowance >= amount, "ERC20: insufficient allowance");
unchecked {
_approve(owner, spender, currentAllowance - amount);
}
}
}
/**
* @dev Hook that is called before any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* will be transferred to `to`.
* - when `from` is zero, `amount` tokens will be minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* has been transferred to `to`.
* - when `from` is zero, `amount` tokens have been minted for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC20.sol";
/**
* @dev Interface for the optional metadata functions from the ERC20 standard.
*
* _Available since v4.1._
*/
interface IERC20Metadata is IERC20 {
/**
* @dev Returns the name of the token.
*/
function name() external view returns (string memory);
/**
* @dev Returns the symbol of the token.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the decimals places of the token.
*/
function decimals() external view returns (uint8);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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 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
pragma solidity =0.8.15;
// import "./openzeppelin-contracts/token/ERC20/ERC20.sol";
// import "./openzeppelin-contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "./interfaces/IRouter.sol";
contract Grand is ERC20, Ownable {
IUniswapRouter public router;
address public pair;
uint256 constant _totalFullSupply = 50_000_000 * 1e18;
uint256 constant _liquiditySupply = _totalFullSupply * 10 / 100; // 10% = 5_000_000 * 1e18;
uint256 public _stakingRewardSupply = _totalFullSupply * 45 / 100; // 45% = 22_500_000 * 1e18;
uint256 public _tradingIncentiveSupply = _totalFullSupply * 20 / 100; // 20% = 10_000_000 * 1e18;
uint256 public _marketingBudgetSupply = _totalFullSupply * 10 / 100; // 10% = 5_000_000 * 1e18;
uint256 public _privateSaleSupply = _totalFullSupply * 8 / 100; // 8% = 4_000_000 * 1e18;
uint256 public _teamTokensSupply = _totalFullSupply * 7 / 100; // 7% = 3_500_000 * 1e18;
uint256 public stakingRewardsMintedAt = 0;
uint256 public tradingIncentiveMintedAt = 0;
uint256 public marketingBudgetMintedAt = 0;
uint256 public privateSaleMintedAt = 0;
uint256 public teamTokensMintedAt = 0;
// whitelist max buy amount in whitelist step
uint256 constant _wlMaxBuyAmount = _liquiditySupply / 100; // 1% of liquidity = 50_000 * 1e18;
uint256 public maxHoldingAmount = _liquiditySupply / 50; // 2% of initial liquidity, 0.2% of total supply = 100_000 * 1e18
bool private swapping;
bool public swapEnabled;
bool public tradingEnabled;
bool public stakingLaunched;
bool public tradingIncentiveLaunched;
uint256 private launchTimestamp;
address public treasuryWallet;
uint256 public swapTokensAtAmount;
uint256 public buyTax;
uint256 public sellTax;
uint256[] private taxTimestampSteps;
uint256[] private buyTaxSteps;
uint256[] private sellTaxSteps;
mapping(address => bool) public whitelisted;
mapping(address => bool) public blacklisted;
mapping(address => bool) public isExcludedFromFees;
mapping(address => bool) private _isExcludedFromMaxWallet;
mapping(address => bool) public automatedMarketMakerPairs;
address[] public whitelist_users = [
0x1A69284e302046AeB25017766A79f89A08e01261,
0x5119757E2c791A6De4F3a5Bf38b9fDbfACbd1068,
0xAFD644Cd6FaB74C9Ab9444c3E420029D4E6B717A,
0x85d659fD40f0354A419947cb3baCCC1DDa938e61,
0xDB1bA7c360a7c42A9C163A133906AC4B86891853,
0x2c5d7333d81eB0eeC7f1ab437d0Bf18f371e06b9,
0x4CB64dFa9985634BF5442DA1c421F8D493380dA3,
0x366391f9C9a66AC4A2cf2a7E7788E6BeF80CDeCC,
0x3F4373aFdde3D7dE3AC433AcC7De685338c3980e,
0x220b522979B9F2Ca0F83663fcfF2ee2426aa449C,
0x6fcDaa9e3ee14540EeA3cFC40Bea16bC61F1c2b8,
0xEE08323d41cbA6C0b72f8d952da8d364bc1Ea71d,
0x6e74205481C0A61650951a463b18EdD7BCb51e5a,
0x10E3D80E50fd146175BCEA8D25C5be0085e2BE59,
0xFdC4C32ac821eB7137f23aC55e3E10C7280eBf7d,
0xc210204c50e78251689DabE7091Be4d2320F00AB,
0x5A7a61FACE3C7Bf578098Ad80Fe7E7c471B4277C,
0x9d156bc7c8768294510A4A41883d5A4EB15b15E3,
0x5671B8dadc4B50e253B52330C558C9DA112C4886,
0x42FeeC5c7e7D3c725864A2716CA357Fa9993CCC0,
0x3185EF019BA1C04B8d65eDB64c1c34C3eaE52271,
0x9c15078EbFcC032D00faCbB4fB9829b60C6e26b4,
0xdbF66aCD1F816E44CeBA22b93cA245155D879392,
0x5Baa197fFEd76a44E7F22fc6E050e7D99025D201,
0xBC35D102F498B6ACDa7ceC5168Fb4B19D9255953,
0x79D06301491f92AA60B58eEc3cfbB9ef2E0Ea4f6,
0x9053137E530b881Fb47E9abdC881dE266F313a1F,
0x0d3C00C1Da6d3f7791E7320A7130556eBDd46767,
0x0A753312Aa7F500fbd8De099B15A2e2761757615,
0x289213e63B7E827a19Bc48e6cb132f6D2dD89342,
0x5fa85E6FEa19F73f92E665c1d4A0d20F0467d33E,
0xDa4e25fC45e82dcDe872c8eaD40a6F012428E1EE,
0x8Cfa8Dd7BD8a1316f145c52D842C09EaC212F642,
0xb1F0801cf68aAC49789e4332690fb4B8b44Cde68,
0x2719F75F3734475a0157e1257C12596B8Ac2D1E5,
0xc7f91e6650Fe21791B1f8af864eD019B6853294E,
0xa9C3eB1b8250Daddf039A010b67a089D8384f648,
0xAB2ccE9850e7Dc9b86e9EBf465F86B06a4329766,
0x44CDDD49C6098B77108336FC5f10A4CC9037d764,
0xCA1bbb512759dE1bE41ab739151553AACFB5073C,
0x5B8aCeDd3D078AA30703AdE6a1ca8caC944aD181,
0x99F5D9E4B88403Fe3590481198396c910610203A,
0xC15e8aE9BC6Bdea3bfdD16b3498c5C4Af9baC670,
0xc746696E0f4488c81FC222d3547CCC0777eb860D,
0x7978D693892F2A20F5DF40561F1E0C48b90e1D73,
0x1fC593215253271e3077798D784311F6B95902E1,
0x03150902655e881D873622020BABF8678183C7A6,
0xE12A574dc83664784B0a3d4672bF9D6E55B5014e,
0xbDFbe0F5858477CABec37784fdd0aB86e0E600d1,
0xA59c43ceEF4c1981432c35921E9b3778Fce79faA
];
event ExcludeFromFees(address indexed account, bool isExcluded);
event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
constructor(address _treasury) ERC20("Grand", "$GB") {
swapEnabled = true;
router = IUniswapRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address _pair = IFactory(router.factory()).createPair(
address(this),
router.WETH()
);
pair = _pair;
_setAutomatedMarketMakerPair(pair, true);
setSwapTokensAtAmount(40000);
treasuryWallet = _treasury;
excludeFromFees(owner(), true);
excludeFromFees(address(this), true);
excludeFromMaxWallet(address(pair), true);
excludeFromMaxWallet(address(this), true);
excludeFromMaxWallet(address(router), true);
excludeFromMaxWallet(owner(), true);
taxTimestampSteps.push(30 minutes);
taxTimestampSteps.push(15 minutes);
taxTimestampSteps.push(15 minutes);
buyTaxSteps.push(4000);
buyTaxSteps.push(3000);
buyTaxSteps.push(1500);
sellTaxSteps.push(4000);
sellTaxSteps.push(3000);
sellTaxSteps.push(1500);
buyTax = 500;
sellTax = 500;
for (uint i = 0; i < whitelist_users.length; i ++) {
whitelisted[whitelist_users[i]] = true;
}
// initial = liquidity + 30% of marketing budget
uint256 initialMintAmt = _liquiditySupply + _marketingBudgetSupply * 3 / 10;
// reduce remained _marketingBudgetSupply
_marketingBudgetSupply = _marketingBudgetSupply * 7 / 10;
_mint(msg.sender, initialMintAmt);
}
// only owner
function setSwapEnabled(bool _enabled) external onlyOwner {
swapEnabled = _enabled;
}
// only owner
function enableTrading(bool _enable) external onlyOwner {
require(tradingEnabled != _enable && launchTimestamp > 0, "Already Set");
tradingEnabled = _enable;
}
// only owner
function launch() external onlyOwner {
launchTimestamp = block.timestamp;
tradingEnabled = true;
}
// only owner
/// @dev Set new pairs created due to listing in new DEX
function setAutomatedMarketMakerPair(address newPair, bool value)
external
onlyOwner
{
_setAutomatedMarketMakerPair(newPair, value);
}
function _setAutomatedMarketMakerPair(address newPair, bool value) private {
require(
automatedMarketMakerPairs[newPair] != value,
"Automated market maker pair is already set to that value"
);
automatedMarketMakerPairs[newPair] = value;
emit SetAutomatedMarketMakerPair(newPair, value);
}
// only owner
function setTreasuryWallet(address newWallet) public onlyOwner {
treasuryWallet = newWallet;
}
// only owner
function setSwapTokensAtAmount(uint256 amount) public onlyOwner {
swapTokensAtAmount = amount * 10**18;
}
function updateMaxHoldingAmount(uint256 newNum) public onlyOwner {
require(newNum >= 100000, "Cannot set maxHoldingAmount lower than 100k tokens");
maxHoldingAmount = newNum * 10**18;
}
// only owner
function setBuyTax(uint256 _tax) external onlyOwner {
require(_tax <= 2000, "Fee must be <= 20%");
buyTax = _tax;
}
// only owner
function setSellTax(uint256 _tax) external onlyOwner {
require(_tax <= 2000, "Fee must be <= 20%");
sellTax = _tax;
}
// only owner
function setTaxSteps(uint256[] calldata _timestamps, uint256[] calldata _buyTaxes, uint256[] calldata _sellTaxes) external onlyOwner {
taxTimestampSteps = _timestamps;
buyTaxSteps = _buyTaxes;
sellTaxSteps = _sellTaxes;
}
// only owner
function blacklist(address user, bool value) external onlyOwner {
require(blacklisted[user] != value, "Already Set");
blacklisted[user] = value;
}
// only owner
function whitelist(address user, bool value) external onlyOwner {
require(whitelisted[user] != value, "Already Set");
whitelisted[user] = value;
}
// only owner
function excludeFromFees(address account, bool excluded) public onlyOwner {
require(
isExcludedFromFees[account] != excluded,
"Account is already the value of 'excluded'"
);
isExcludedFromFees[account] = excluded;
emit ExcludeFromFees(account, excluded);
}
function excludeFromMaxWallet(address account, bool excluded)
public
onlyOwner
{
_isExcludedFromMaxWallet[account] = excluded;
}
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(!blacklisted[from] && !blacklisted[to], "Blacklisted");
if (
!isExcludedFromFees[from] && !isExcludedFromFees[to] && !swapping
) {
require(tradingEnabled, "Trading not active");
if (!_isExcludedFromMaxWallet[to]) {
require(
amount + balanceOf(to) <= maxHoldingAmount,
"Unable to exceed maxHoldingAmount"
);
}
}
if (amount == 0) {
super._transfer(from, to, 0);
return;
}
uint256 contractTokenBalance = balanceOf(address(this));
bool canSwap = contractTokenBalance >= swapTokensAtAmount && contractTokenBalance > 0;
if (
canSwap &&
!swapping &&
swapEnabled &&
automatedMarketMakerPairs[to] &&
!isExcludedFromFees[from] &&
!isExcludedFromFees[to]
) {
swapping = true;
if (sellTax > 0) {
swapToTreasury(swapTokensAtAmount);
}
swapping = false;
}
bool takeFee = !swapping;
// if any account belongs to _isExcludedFromFee account then remove the fee
if (isExcludedFromFees[from] || isExcludedFromFees[to]) {
takeFee = false;
}
// if no swap
if (!automatedMarketMakerPairs[to] && !automatedMarketMakerPairs[from])
takeFee = false;
else if (isFirstStepTrade()) {
// if swap and first step, and if whitelisted user, then no fee
// buy or sell
if (whitelisted[to] || whitelisted[from]) {
takeFee = false;
// if wl is buying, then check balance
if (whitelisted[to]) {
require(balanceOf(to) + amount <= _wlMaxBuyAmount, "Exceed max buy amount!");
}
}
}
if (takeFee) {
uint256 feeAmt;
if (automatedMarketMakerPairs[to])
feeAmt = (amount * getSellTax()) / 10000;
else if (automatedMarketMakerPairs[from])
feeAmt = (amount * getBuyTax()) / 10000;
amount = amount - feeAmt;
super._transfer(from, address(this), feeAmt);
}
super._transfer(from, to, amount);
}
function swapToTreasury(uint256 tokens) private {
swapTokensForETH(tokens);
uint256 EthTaxBalance = address(this).balance;
// Send ETH to treasury
uint256 trAmt = EthTaxBalance;
if (trAmt > 0) {
(bool success, ) = payable(treasuryWallet).call{value: trAmt}("");
require(success, "Failed to send ETH to treasury wallet");
}
}
function swapTokensForETH(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
_approve(address(this), address(router), tokenAmount);
// make the swap
// router.swapExactTokensForETH(
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function isFirstStepTrade() internal view returns (bool) {
uint256 curTick = block.timestamp;
return curTick <= (launchTimestamp + taxTimestampSteps[0]);
}
function getSellTax() internal view returns (uint256) {
uint256 curTick = block.timestamp;
uint256 i;
uint256 tick = launchTimestamp;
for (i = 0; i < taxTimestampSteps.length; i ++) {
if (curTick <= tick + taxTimestampSteps[i]) return sellTaxSteps[i];
tick += taxTimestampSteps[i];
}
return sellTax;
}
function getBuyTax() internal view returns (uint256) {
uint256 curTick = block.timestamp;
uint256 i;
uint256 tick = launchTimestamp;
for (i = 0; i < taxTimestampSteps.length; i ++) {
if (curTick <= tick + taxTimestampSteps[i]) return buyTaxSteps[i];
tick += taxTimestampSteps[i];
}
return buyTax;
}
// only owner
function mintMarketingBudget() external onlyOwner {
require(launchTimestamp > 0, "token is not launched yet");
require(_marketingBudgetSupply > 0, "no token to mint");
uint256 curTick = block.timestamp;
if (marketingBudgetMintedAt == 0) {
marketingBudgetMintedAt = launchTimestamp;
}
if (marketingBudgetMintedAt + 7 days <= curTick) {
uint256 mintAmount = _totalFullSupply * 1 / 100; // 10% of _marketingBudgetSupply
// if mintAmount is bigger than _marketingBudgetSupply, then set it to _marketingBudgetSupply
if (mintAmount > _marketingBudgetSupply) mintAmount = _marketingBudgetSupply;
// reduce _marketingBudgetSupply by subtrating mintAmount
_marketingBudgetSupply = _marketingBudgetSupply - mintAmount;
_mint(msg.sender, mintAmount);
marketingBudgetMintedAt = marketingBudgetMintedAt + 7 days;
}
}
// only owner
function mintPrivateSale() external onlyOwner {
require(launchTimestamp > 0, "token is not launched yet");
require(_privateSaleSupply > 0, "no token to mint");
uint256 curTick = block.timestamp;
if (privateSaleMintedAt == 0) {
// at first, 2 days after tge, mint 30%
if (launchTimestamp + 2 days <= curTick) {
uint256 mintAmount = (_totalFullSupply * 8 / 100) * 3 / 10; // 30% first
_mint(msg.sender, mintAmount);
privateSaleMintedAt = launchTimestamp + 2 days;
_privateSaleSupply = _privateSaleSupply - mintAmount;
}
} else {
if (privateSaleMintedAt + 7 days <= curTick) {
uint256 mintAmount = (_totalFullSupply * 8 / 100) / 10; // 10% of _privateSaleSupply
// if mintAmount is bigger than _privateSaleSupply, then set it to _privateSaleSupply
if (mintAmount > _privateSaleSupply) mintAmount = _privateSaleSupply;
// reduce _privateSaleSupply by subtrating mintAmount
_privateSaleSupply = _privateSaleSupply - mintAmount;
_mint(msg.sender, mintAmount);
privateSaleMintedAt = privateSaleMintedAt + 7 days;
}
}
}
// only owner
function mintTeamTokens() external onlyOwner {
require(launchTimestamp > 0, "token is not launched yet");
require(_teamTokensSupply > 0, "no token to mint");
require(launchTimestamp + 30 days <= block.timestamp, "1 month should past");
uint256 curTick = block.timestamp;
if (teamTokensMintedAt == 0) {
teamTokensMintedAt = launchTimestamp + 30 days;
}
if (teamTokensMintedAt + 7 days <= curTick) {
uint256 mintAmount = (_totalFullSupply * 7 / 100) / 20; // 5% of _teamTokensSupply
// if mintAmount is bigger than _teamTokensSupply, then set it to _teamTokensSupply
if (mintAmount > _teamTokensSupply) mintAmount = _teamTokensSupply;
// reduce _teamTokensSupply by subtrating mintAmount
_teamTokensSupply = _teamTokensSupply - mintAmount;
_mint(msg.sender, mintAmount);
teamTokensMintedAt = teamTokensMintedAt + 7 days;
}
}
function launchStaking() external onlyOwner {
stakingLaunched = true;
}
function launchTradingIncentive() external onlyOwner {
tradingIncentiveLaunched = true;
}
// only owner
function mintStakingRewards() external onlyOwner {
require(launchTimestamp > 0, "token is not launched yet");
require(_stakingRewardSupply > 0, "no token to mint");
require(stakingLaunched, "staking is not launched yet");
uint256 curTick = block.timestamp;
if (stakingRewardsMintedAt == 0) {
// at first, mint 30%
uint256 mintAmount = (_totalFullSupply * 45 / 100) * 3 / 10; // 30% first
_mint(msg.sender, mintAmount);
stakingRewardsMintedAt = curTick;
_stakingRewardSupply = _stakingRewardSupply - mintAmount;
} else {
if (stakingRewardsMintedAt + 7 days <= curTick) {
uint256 mintAmount = (_totalFullSupply * 45 / 100) / 10; // 10% of _stakingRewardSupply
// if mintAmount is bigger than _stakingRewardSupply, then set it to _stakingRewardSupply
if (mintAmount > _stakingRewardSupply) mintAmount = _stakingRewardSupply;
// reduce _stakingRewardSupply by subtrating mintAmount
_stakingRewardSupply = _stakingRewardSupply - mintAmount;
_mint(msg.sender, mintAmount);
stakingRewardsMintedAt = stakingRewardsMintedAt + 7 days;
}
}
}
// only owner
function mintTradingIncentive() external onlyOwner {
require(launchTimestamp > 0, "token is not launched yet");
require(_tradingIncentiveSupply > 0, "no token to mint");
require(tradingIncentiveLaunched, "trading incentive is not launched yet");
uint256 curTick = block.timestamp;
if (tradingIncentiveMintedAt == 0) {
// at first, mint 30%
uint256 mintAmount = (_totalFullSupply * 20 / 100) * 3 / 10; // 30% first
_mint(msg.sender, mintAmount);
tradingIncentiveMintedAt = curTick;
_tradingIncentiveSupply = _tradingIncentiveSupply - mintAmount;
} else {
if (tradingIncentiveMintedAt + 7 days <= curTick) {
uint256 mintAmount = (_totalFullSupply * 20 / 100) / 10; // 10% of _tradingIncentiveSupply
// if mintAmount is bigger than _tradingIncentiveSupply, then set it to _tradingIncentiveSupply
if (mintAmount > _tradingIncentiveSupply) mintAmount = _tradingIncentiveSupply;
// reduce _tradingIncentiveSupply by subtrating mintAmount
_tradingIncentiveSupply = _tradingIncentiveSupply - mintAmount;
_mint(msg.sender, mintAmount);
tradingIncentiveMintedAt = tradingIncentiveMintedAt + 7 days;
}
}
}
receive() external payable {}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;
interface IPair {
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function token0() external view returns (address);
}
interface IFactory{
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
interface IUniswapRouter {
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 swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline) external;
}