Tugou contract rules or mechanism:
buy, transfer 13% tax, sell tax free
1st generation: 2.5%
2nd generation: 1.5%
3rd generation - 8th generation: 0.5%
Black hole destruction: 4%
LP dividend: 2%
Invitation: Bind the invitation relationship by transferring any number of tokens to the non-holding address
Token contract source code:
/**
*Submitted for verification at BscScan.com on 2022-02-16
*/
pragma solidity ^0.8.6;
// SPDX-License-Identifier: Unlicensed
interface IERC20 {
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
);
}
abstract contract Ownable {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor () {
address msgSender = msg.sender;
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
function owner() public view returns (address) {
return _owner;
}
modifier onlyOwner() {
require(_owner == msg.sender, "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
library SafeMath {
/**
* @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) {
return sub(a, b, "SafeMath: subtraction overflow");
}
/**
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on
* overflow (when the result is negative).
*
* 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);
uint256 c = a - b;
return c;
}
/**
* @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) {
// 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 0;
}
uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");
return c;
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts 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) {
return div(a, b, "SafeMath: division by zero");
}
/**
* @dev Returns the integer division of two unsigned integers. Reverts with custom message 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,
string memory errorMessage
) internal pure returns (uint256) {
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c + a % b); // There is no case in which this doesn't hold
return c;
}
}
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 Mint(address indexed sender, uint256 amount0, uint256 amount1);
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 mint(address to) external returns (uint256 liquidity);
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 FiveToken is IERC20, Ownable {
using SafeMath for uint256;
mapping(address => uint256) private _tOwned;
mapping(address => mapping(address => uint256)) private _allowances;
mapping (address => bool) isDividendExempt;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private _updated;
uint256 private _tFeeTotal;
string private _name = "Five";
string private _symbol = "Five";
uint8 private _decimals = 9;
uint256 public _burnFee = 400;
uint256 private _previousburnFee;
uint256 public _lpFee = 200;
uint256 private _previousLpFee;
uint256 public _cakeFee = 0;
uint256 private _previousCakeFee;
uint256 public _inviterFee = 700;
uint256 private _previousInviterFee;
uint256 currentIndex;
uint256 private _tTotal = 100 * 10**8 * 10**9;
uint256 distributorGas = 500000;
uint256 public minPeriod = 1 hours;
uint256 public lpFeeShareTime;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
address private fromAddress;
address private toAddress;
mapping(address => address) public inviter;
address[] shareholders;
mapping (address => uint256) shareholderIndexes;
bool inSwapAndLiquify;
modifier lockTheSwap() {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}
constructor() {
_tOwned[msg.sender] = _tTotal;
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E);
// Create a uniswap pair for this new token
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
// set the rest of the contract variables
uniswapV2Router = _uniswapV2Router;
//exclude owner and this contract from fee
_isExcludedFromFee[msg.sender] = true;
_isExcludedFromFee[address(this)] = true;
isDividendExempt[address(this)] = true;
isDividendExempt[address(0)] = true;
emit Transfer(address(0), msg.sender, _tTotal);
}
function name() public view returns (string memory) {
return _name;
}
function symbol() public view returns (string memory) {
return _symbol;
}
function decimals() public view returns (uint256) {
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(msg.sender, 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(msg.sender, spender, amount);
return true;
}
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 increaseAllowance(address spender, uint256 addedValue)
public
virtual
returns (bool)
{
_approve(
msg.sender,
spender,
_allowances[msg.sender][spender].add(addedValue)
);
return true;
}
function decreaseAllowance(address spender, uint256 subtractedValue)
public
virtual
returns (bool)
{
_approve(
msg.sender,
spender,
_allowances[msg.sender][spender].sub(
subtractedValue,
"ERC20: decreased allowance below zero"
)
);
return true;
}
function totalFees() public view returns (uint256) {
return _tFeeTotal;
}
function isExcludedFromFee(address account) public view returns (bool) {
return _isExcludedFromFee[account];
}
function excludeFromFee(address account) public onlyOwner {
_isExcludedFromFee[account] = true;
}
function includeInFee(address account) public onlyOwner {
_isExcludedFromFee[account] = false;
}
//to recieve ETH from uniswapV2Router when swaping
receive() external payable {}
function removeAllFee() private {
_previousburnFee = _burnFee;
_previousLpFee = _lpFee;
_previousCakeFee = _cakeFee;
_previousInviterFee = _inviterFee;
_burnFee = 0;
_lpFee = 0;
_inviterFee = 0;
_cakeFee = 0;
}
function restoreAllFee() private {
_burnFee = _previousburnFee;
_lpFee = _previousLpFee;
_inviterFee = _previousInviterFee;
_cakeFee = _previousCakeFee;
}
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 from,
address to,
uint256 amount
) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(amount > 0, "Transfer amount must be greater than zero");
//indicates if fee should be deducted from transfer
bool takeFee = true;
//if any account belongs to _isExcludedFromFee account then remove the fee
if (_isExcludedFromFee[from] || _isExcludedFromFee[to] || to == uniswapV2Pair || from == address(uniswapV2Router)) {
takeFee = false;
}
bool shouldSetInviter = balanceOf(to) == 0 && inviter[to] == address(0) && from != uniswapV2Pair;
//transfer amount, it will take tax, burn, liquidity fee
_tokenTransfer(from, to, amount, takeFee);
if (shouldSetInviter) {
inviter[to] = from;
}
if(fromAddress == address(0) ) fromAddress = from;
if(toAddress == address(0)) toAddress = to;
if(!isDividendExempt[fromAddress] && fromAddress != uniswapV2Pair ) setShare(fromAddress);
if(!isDividendExempt[toAddress] && toAddress != uniswapV2Pair ) setShare(toAddress);
fromAddress = from;
toAddress = to;
if(_tOwned[address(this)] >= 1 * 10**4 * 10**9 && from !=address(this) && lpFeeShareTime.add(minPeriod) <= block.timestamp) {
process(distributorGas) ;
lpFeeShareTime = block.timestamp;
}
}
function process(uint256 gas) private {
uint256 shareholderCount = shareholders.length;
if(shareholderCount == 0)return;
uint256 nowbanance = _tOwned[address(this)];
uint256 gasUsed = 0;
uint256 gasLeft = gasleft();
uint256 iterations = 0;
while(gasUsed < gas && iterations < shareholderCount) {
if(currentIndex >= shareholderCount){
currentIndex = 0;
}
uint256 amount = nowbanance.mul(IERC20(uniswapV2Pair).balanceOf(shareholders[currentIndex])).div(IERC20(uniswapV2Pair).totalSupply());
if( amount < 1 * 10**9) {
currentIndex++;
iterations++;
return;
}
if(_tOwned[address(this)] < amount )return;
distributeDividend(shareholders[currentIndex],amount);
gasUsed = gasUsed.add(gasLeft.sub(gasleft()));
gasLeft = gasleft();
currentIndex++;
iterations++;
}
}
function distributeDividend(address shareholder ,uint256 amount) internal {
_tOwned[address(this)] = _tOwned[address(this)].sub(amount);
_tOwned[shareholder] = _tOwned[shareholder].add(amount);
emit Transfer(address(this), shareholder, amount);
}
function setShare(address shareholder) private {
if(_updated[shareholder] ){
if(IERC20(uniswapV2Pair).balanceOf(shareholder) == 0) quitShare(shareholder);
return;
}
if(IERC20(uniswapV2Pair).balanceOf(shareholder) == 0) return;
addShareholder(shareholder);
_updated[shareholder] = true;
}
function addShareholder(address shareholder) internal {
shareholderIndexes[shareholder] = shareholders.length;
shareholders.push(shareholder);
}
function quitShare(address shareholder) private {
removeShareholder(shareholder);
_updated[shareholder] = false;
}
function removeShareholder(address shareholder) internal {
shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length-1];
shareholderIndexes[shareholders[shareholders.length-1]] = shareholderIndexes[shareholder];
shareholders.pop();
}
//this method is responsible for taking all fee, if takeFee is true
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (!takeFee) removeAllFee();
_transferStandard(sender, recipient, amount);
if (!takeFee) restoreAllFee();
}
//
function _takeburnFee(
address sender,
uint256 tAmount
) private {
if (_burnFee == 0) return;
if(_tFeeTotal >= 999 * 10**7 * 10**9)_burnFee = 0;
_tOwned[address(0)] = _tOwned[address(0)].add(tAmount);
_tFeeTotal = _tFeeTotal.add(tAmount);
emit Transfer(sender, address(0), tAmount);
}
function _takeLPFee(address sender,uint256 tAmount) private {
if (_lpFee == 0 && _cakeFee == 0) return;
_tOwned[address(this)] = _tOwned[address(this)].add(tAmount);
emit Transfer(sender, address(this), tAmount);
}
function _takeInviterFee(
address sender,
address recipient,
uint256 tAmount
) private {
if (_inviterFee == 0) return;
address cur;
if (sender == uniswapV2Pair) {
cur = recipient;
} else if (recipient == uniswapV2Pair) {
cur = sender;
} else {
_tOwned[address(this)] = _tOwned[address(this)].add(tAmount.div(10000).mul(_inviterFee));
emit Transfer(sender, address(this), tAmount.div(10000).mul(_inviterFee));
return;
}
uint256 accurRate;
for (int256 i = 0; i < 8; i++) {
uint256 rate;
if (i == 0) {
rate = 250;
} else if(i == 1 ){
rate = 150;
} else {
rate = 50;
}
cur = inviter[cur];
if (cur == address(0)) {
break;
}
accurRate = accurRate.add(rate);
uint256 curTAmount = tAmount.div(10000).mul(rate);
_tOwned[cur] = _tOwned[cur].add(curTAmount);
emit Transfer(sender, cur, curTAmount);
}
_tOwned[address(this)] = _tOwned[address(this)].add(tAmount.div(10000).mul(_inviterFee.sub(accurRate)));
emit Transfer(sender, address(this), tAmount.div(10000).mul(_inviterFee.sub(accurRate)));
}
function _transferStandard(
address sender,
address recipient,
uint256 tAmount
) private {
_tOwned[sender] = _tOwned[sender].sub(tAmount);
_takeburnFee(sender, tAmount.div(10000).mul(_burnFee));
_takeLPFee(sender, tAmount.div(10000).mul(_lpFee.add(_cakeFee)));
_takeInviterFee(sender, recipient, tAmount);
uint256 recipientRate = 10000 - _burnFee -_lpFee - _cakeFee - _inviterFee;
_tOwned[recipient] = _tOwned[recipient].add(tAmount.div(10000).mul(recipientRate));
emit Transfer(sender, recipient, tAmount.div(10000).mul(recipientRate));
}
}Statement: The author is only interested in collecting and researching blockchain technology. All other matters have nothing to do with me, and others are welcome to communicate with me technically. The source code of the contract comes from the network
https://bscscan.com/address/0xea2f070c1b72012afb0ec30c267a792424027688#code