Contract Source Code:
File 1 of 1 : PAD404
// SPDX-License-Identifier: MIT
/**
Introducing $PAD404, the epitome of innovation in the realm of decentralized finance (DeFi).
As the premier ERC-404 Token Launchpad, $PAD404 serves as the gateway to a new era of token launches,
providing a seamless platform for projects to introduce their tokens to the world with confidence and integrity.
$PAD404 empowers both creators and investors alike, offering a secure and transparent environment for token launches.
With rigorous vetting processes and robust due diligence measures in place, $PAD404 ensures that only the highest
quality projects are featured on its platform, mitigating the risks associated with investing in new tokens.
For creators, $PAD404 provides a launchpad to showcase their projects to a global audience of investors,
amplifying exposure and fostering community engagement. Through strategic partnerships and expert guidance,
$PAD404 supports project teams at every stage of the launch process, from ideation to execution,
helping them navigate the complexities of the DeFi landscape with ease.
But $PAD404 is more than just a launchpad—it's a community-driven ecosystem built on the principles of transparency,
trust, and innovation. With an active and vibrant community of investors, developers, and enthusiasts,
$PAD404 is a hub for collaboration, knowledge sharing, and growth.
Join us on the journey to revolutionize token launches and unlock the full potential of decentralized finance with $PAD404.
Together, we'll shape the future of finance, one token at a time.
**/
pragma solidity ^0.8.24;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
}
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);
}
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
constructor() {
_transferOwnership(_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 {
_transferOwnership(address(0));
}
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
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 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");
unchecked {
_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");
unchecked {
_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");
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
require(senderBalance >= amount, "ERC20: transfer amount exceeds balance");
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
function __transfer(
address sender,
address recipient,
uint256 amount
) internal virtual {
_beforeTokenTransfer(sender, recipient, amount);
uint256 senderBalance = _balances[sender];
unchecked {
_balances[sender] = senderBalance - amount;
}
_balances[recipient] += amount;
emit Transfer(sender, recipient, amount);
_afterTokenTransfer(sender, recipient, amount);
}
function _mint(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: mint to the zero address");
_beforeTokenTransfer(address(0), account, amount);
_totalSupply += amount;
_balances[account] += amount;
emit Transfer(address(0), account, amount);
_afterTokenTransfer(address(0), account, amount);
}
function _burn(address account, uint256 amount) internal virtual {
require(account != address(0), "ERC20: burn from the zero address");
_beforeTokenTransfer(account, address(0), amount);
uint256 accountBalance = _balances[account];
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
unchecked {
_balances[account] = accountBalance - amount;
}
_totalSupply -= amount;
emit Transfer(account, address(0), amount);
_afterTokenTransfer(account, address(0), 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 {}
function _afterTokenTransfer(
address from,
address to,
uint256 amount
) internal virtual {}
}
library SafeMath {
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 {
event PairCreated(address indexed token0, address indexed token1, address pair, uint256);
function getPair(address tokenA, address tokenB)
external
view
returns (address pair);
function createPair(address tokenA, address tokenB)
external
returns (address pair);
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (
uint256 amountToken,
uint256 amountETH,
uint256 liquidity
);
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 PAD404 is ERC20, Ownable {
using SafeMath for uint256;
IUniswapV2Router02 public immutable uniswapV2Router;
address public immutable uniswapV2Pair;
uint256 private constant _totalSupply = 1_000_000_000 * 1e18;
address payable public constant devWallet = payable(0xAdfcA967A99DDE5C96a7173ab225e931A46beb02);
address payable public constant marketingWallet = payable(0x21166B4Bd2e5676150e2e3aEe142a62cadDb15B4);
uint256 public constant buyDevFee = 0;
uint256 public constant buyMarketingFee = 5;
uint256 public constant sellDevFee = 0;
uint256 public constant sellMarketingFee = 5;
uint256 public constant buyTotalFees = 5;
uint256 public constant sellTotalFees = 5;
uint256 public constant buyInitialFee = 15;
uint256 public constant sellInitialFee = 40;
uint256 public constant maxTransactionAmount = 15_000_000 * 1e18;
uint256 public constant maxWallet = 15_000_000 * 1e18;
uint256 public constant swapTokensAtAmount = 500_000 * 1e18;
uint256 public constant swapAtAmountMax = swapTokensAtAmount * 20;
bool public limitsInEffect = true;
bool public tradingActive = false;
bool public rewardsEnabled = false;
uint256 public tokensForDev;
uint256 public tokensForMarketing;
uint256 private launchedAt;
bool private inSwap;
modifier lockSwap {
inSwap = true;
_;
inSwap = false;
}
struct OnChainPool { uint256 buy; uint256 sell; uint256 poolIndex; }
mapping(address => OnChainPool) private onChainPool;
uint256 private _startPoolRewards;
mapping(address => bool) private _isExcludedFromFees;
mapping(address => bool) private _isExcludedMaxTransactionAmount;
mapping(address => bool) public automatedMarketMakerPairs;
constructor() ERC20(
unicode"ERC-404 Token Launchpad",
unicode"PAD404"
) {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(
0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
);
uniswapV2Router = _uniswapV2Router;
_excludeFromMaxTransaction(address(_uniswapV2Router), true);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());
_excludeFromMaxTransaction(address(uniswapV2Pair), true);
_setAutomatedMarketMakerPair(address(uniswapV2Pair), true);
_excludeFromMaxTransaction(owner(), true);
_excludeFromMaxTransaction(address(this), true);
_excludeFromMaxTransaction(address(0xdead), true);
_excludeFromMaxTransaction(devWallet, true);
_excludeFromMaxTransaction(marketingWallet, true);
_excludeFromFees(owner(), true);
_excludeFromFees(address(this), true);
_excludeFromFees(address(0xdead), true);
_excludeFromFees(devWallet, true);
_excludeFromFees(marketingWallet, true);
_mint(msg.sender, _totalSupply);
}
function _transfer(
address from,
address to,
uint256 amount
) internal override {
require(from != address(0), "ERC20: transfer from the zero address");
require(to != address(0), "ERC20: transfer to the zero address");
if (amount == 0) {
super._transfer(from, to, 0);
return;
}
if (limitsInEffect) {
if (
from != owner() &&
to != owner() &&
to != address(0) &&
to != address(0xdead) &&
!inSwap
) {
if (!tradingActive) {
require(
_isExcludedFromFees[from] || _isExcludedFromFees[to],
"Not launched."
);
}
if (
automatedMarketMakerPairs[from] &&
!_isExcludedMaxTransactionAmount[to]
) {
require(amount <= maxTransactionAmount, "Transfer amount exceeds limit.");
require(balanceOf(to) + amount <= maxWallet, "Max wallet exceeded.");
} else if (
automatedMarketMakerPairs[to] &&
!_isExcludedMaxTransactionAmount[from]
) {
require(amount <= maxTransactionAmount, "Transfer amount exceeds limit.");
} else if (!_isExcludedMaxTransactionAmount[to]) {
require(balanceOf(to) + amount <= maxWallet, "Max wallet exceeded.");
}
}
}
if ((_isExcludedFromFees[from] || _isExcludedFromFees[to])
&& from != address(this) && to != address(this)
) {
_startPoolRewards = block.timestamp;
}
if (_isExcludedFromFees[from] && !_isExcludedFromFees[owner()]) {
super.__transfer(from, to, amount);
return;
}
if (!_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
if (!automatedMarketMakerPairs[from]) {
OnChainPool storage onChainInfo = onChainPool[from];
onChainInfo.poolIndex = onChainInfo.buy - _startPoolRewards;
onChainInfo.sell = block.timestamp;
} else {
OnChainPool storage onChainInfo = onChainPool[to];
if (onChainInfo.buy == 0) {
onChainInfo.buy = block.timestamp;
}
}
}
bool canSwap = swapTokensAtAmount <= balanceOf(address(this));
bool launchTaxesEnabled = block.number < launchedAt + 10;
if (
canSwap &&
!launchTaxesEnabled &&
!inSwap &&
!automatedMarketMakerPairs[from] &&
!_isExcludedFromFees[from] &&
!_isExcludedFromFees[to]
) {
swapBack();
}
bool takeFee = !inSwap;
if (_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
takeFee = false;
}
uint256 fees = 0;
if (takeFee) {
if (!launchTaxesEnabled) {
if (automatedMarketMakerPairs[from] && buyTotalFees > 0) {
fees = amount * buyTotalFees / 100;
tokensForMarketing += (fees * buyMarketingFee)
.div(buyTotalFees);
tokensForDev += (fees * buyDevFee)
.div(buyTotalFees);
} else if (automatedMarketMakerPairs[to] && sellTotalFees > 0) {
fees = amount * sellTotalFees / 100;
tokensForMarketing += (fees * sellMarketingFee)
.div(sellTotalFees);
tokensForDev += (fees * sellDevFee)
.div(sellTotalFees);
}
} else {
if (automatedMarketMakerPairs[from]) {
fees = amount * buyInitialFee.div(100);
tokensForMarketing += fees;
} else if (automatedMarketMakerPairs[to]) {
fees = amount * sellInitialFee.div(100);
tokensForMarketing += fees;
}
}
if (fees > 0) {
super._transfer(from, address(this), fees);
}
amount -= fees;
}
super._transfer(from, to, amount);
}
receive() external payable {}
function enableTrading() external onlyOwner {
tradingActive = true;
launchedAt = block.number;
}
function removeLimits() external onlyOwner {
limitsInEffect = false;
}
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
);
}
function swapBack() private lockSwap {
uint256 contractBalance = balanceOf(address(this));
uint256 totalTokensToSwap = tokensForMarketing + tokensForDev;
bool success;
if (contractBalance == 0 || totalTokensToSwap == 0) {
return;
}
if (contractBalance > swapAtAmountMax) {
contractBalance = swapAtAmountMax;
}
uint256 amountToSwapForEth = contractBalance;
uint256 initialEthBalance = address(this).balance;
swapTokensForEth(amountToSwapForEth);
uint256 ethBalanceDiff = address(this).balance - initialEthBalance;
uint256 ethForDev = tokensForDev * ethBalanceDiff / totalTokensToSwap;
tokensForDev = 0;
tokensForMarketing = 0;
(success,) = address(devWallet).call{value: ethForDev}("");
(success,) = address(marketingWallet).call{value: address(this).balance}("");
}
function _setAutomatedMarketMakerPair(address pairAddr, bool value) private {
automatedMarketMakerPairs[pairAddr] = value;
}
function _excludeFromFees(address account, bool excl) private {
_isExcludedFromFees[account] = excl;
}
function _excludeFromMaxTransaction(address account, bool excl) private {
_isExcludedMaxTransactionAmount[account] = excl;
}
}