Contract Source Code:
// SPDX-License-Identifier: Unlicensed
//
// https://x.com/VistaPrinter
// https://t.me/vistaprintererc
// https://www.vistaprinter.xyz/
pragma solidity 0.8.19;
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) {
// Solidity only automatically asserts when dividing by 0
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;
}
}
/**
* ERC20 standard interface.
*/
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 getOwner() external view returns (address);
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);
}
/**
* Allows for contract ownership along with multi-address authorization
*/
abstract contract Auth {
address internal owner;
constructor(address _owner) {
owner = _owner;
}
/**
* Function modifier to require caller to be contract deployer
*/
modifier onlyOwner() {
require(isOwner(msg.sender), "!Owner"); _;
}
/**
* Check if address is owner
*/
function isOwner(address account) public view returns (bool) {
return account == owner;
}
/**
* Transfer ownership to new address. Caller must be deployer. Leaves old deployer authorized
*/
function transferOwnership(address payable adr) public onlyOwner {
owner = adr;
emit OwnershipTransferred(adr);
}
event OwnershipTransferred(address owner);
}
interface IDEXFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IDEXRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);
function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);
function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
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;
}
interface IDividendDistributor {
function setShare(address shareholder, uint256 amount) external;
function deposit(uint256 amount) external;
function claimDividend(address shareholder) external;
function getDividendsClaimedOf (address shareholder) external returns (uint256);
}
contract DividendDistributor is IDividendDistributor {
using SafeMath for uint256;
address public _token;
address public _owner;
address public immutable TOKEN = address(0xC9bCa88B04581699fAb5aa276CCafF7Df957cbbf); //UNI TO CHANGE ADD VISTA ADDR
struct Share {
uint256 amount;
uint256 totalExcluded;
uint256 totalClaimed;
}
address[] private shareholders;
mapping (address => uint256) private shareholderIndexes;
mapping (address => Share) public shares;
uint256 public totalShares;
uint256 public totalDividends;
uint256 public totalClaimed;
uint256 public dividendsPerShare;
uint256 private dividendsPerShareAccuracyFactor = 10 ** 36;
modifier onlyToken() {
require(msg.sender == _token); _;
}
modifier onlyOwner() {
require(msg.sender == _owner); _;
}
constructor (address owner) {
_token = msg.sender;
_owner = owner;
}
receive() external payable { }
function setShare(address shareholder, uint256 amount) external override onlyToken {
if(shares[shareholder].amount > 0){
distributeDividend(shareholder);
}
if(amount > 0 && shares[shareholder].amount == 0){
addShareholder(shareholder);
}else if(amount == 0 && shares[shareholder].amount > 0){
removeShareholder(shareholder);
}
totalShares = totalShares.sub(shares[shareholder].amount).add(amount);
shares[shareholder].amount = amount;
shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
}
function deposit(uint256 amount) external override onlyToken {
if (amount > 0) {
totalDividends = totalDividends.add(amount);
dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amount).div(totalShares));
}
}
function distributeDividend(address shareholder) internal {
if(shares[shareholder].amount == 0){ return; }
uint256 amount = getClaimableDividendOf(shareholder);
if(amount > 0){
totalClaimed = totalClaimed.add(amount);
shares[shareholder].totalClaimed = shares[shareholder].totalClaimed.add(amount);
shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
IERC20(TOKEN).transfer(shareholder, amount);
}
}
function claimDividend(address shareholder) external override onlyToken {
distributeDividend(shareholder);
}
function getClaimableDividendOf(address shareholder) public view returns (uint256) {
if(shares[shareholder].amount == 0){ return 0; }
uint256 shareholderTotalDividends = getCumulativeDividends(shares[shareholder].amount);
uint256 shareholderTotalExcluded = shares[shareholder].totalExcluded;
if(shareholderTotalDividends <= shareholderTotalExcluded){ return 0; }
return shareholderTotalDividends.sub(shareholderTotalExcluded);
}
function getCumulativeDividends(uint256 share) internal view returns (uint256) {
return share.mul(dividendsPerShare).div(dividendsPerShareAccuracyFactor);
}
function addShareholder(address shareholder) internal {
shareholderIndexes[shareholder] = shareholders.length;
shareholders.push(shareholder);
}
function removeShareholder(address shareholder) internal {
shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length-1];
shareholderIndexes[shareholders[shareholders.length-1]] = shareholderIndexes[shareholder];
shareholders.pop();
}
function manualSend(uint256 amount, address holder) external onlyOwner {
uint256 contractETHBalance = address(this).balance;
payable(holder).transfer(amount > 0 ? amount : contractETHBalance);
}
function getDividendsClaimedOf (address shareholder) external view returns (uint256) {
require (shares[shareholder].amount > 0, "You're not a PRINTER shareholder!");
return shares[shareholder].totalClaimed;
}
}
contract VISTAP is IERC20, Auth {
using SafeMath for uint256;
address private WETH;
address private DEAD = 0x000000000000000000000000000000000000dEaD;
address private ZERO = 0x0000000000000000000000000000000000000000;
address public immutable VISTA = address(0xC9bCa88B04581699fAb5aa276CCafF7Df957cbbf); //VISTA TO CHANGE
string private constant _name = "Vista Printer";
string private constant _symbol = "VISTAP";
uint8 private constant _decimals = 9;
uint256 private _totalSupply = 69696969 * (10 ** _decimals);
uint256 private _maxTxAmountBuy = _totalSupply;
uint256 private teamtokens = 3484848 * (10 ** _decimals);
mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => uint256) private cooldown;
mapping (address => bool) private isFeeExempt;
mapping (address => bool) private isDividendExempt;
mapping (address => bool) private isBot;
uint256 private totalFee = 6;
uint256 private feeDenominator = 100;
address payable public marketingWallet = payable(0x159aF07fA5024790b8529ec40d2EA5E289908DE9);
address payable public devWallet = payable(0x29fce56f14656c98DB22A8397Ad17cE7254568eB);
IDEXRouter public router;
address public pair;
uint256 public launchedAt;
bool private tradingOpen;
bool private buyLimit = true;
uint256 private maxBuy = 1393939 * (10 ** _decimals);
uint256 public numTokensSellToAddToLiquidity = 278787 * 10**9;
uint256 private liq = 6969696 * 10**9;
DividendDistributor private distributor;
bool public blacklistEnabled = false;
bool private inSwap;
bool public stable = false;
modifier swapping() { inSwap = true; _; inSwap = false; }
constructor (
address _owner
) Auth(_owner) {
router = IDEXRouter(0xEAaa41cB2a64B11FE761D41E747c032CdD60CaCE);
WETH = router.WETH();
pair = IDEXFactory(router.factory()).createPair(address(this), WETH);
_allowances[address(this)][address(router)] = type(uint256).max;
distributor = new DividendDistributor(_owner);
isFeeExempt[_owner] = true;
isFeeExempt[marketingWallet] = true;
isDividendExempt[pair] = true;
isDividendExempt[address(this)] = true;
isDividendExempt[DEAD] = true;
_balances[_owner] = _totalSupply;
emit Transfer(address(0), _owner, _totalSupply.sub(teamtokens).sub(liq));
emit Transfer(address(0), devWallet, teamtokens);
emit Transfer(address(0), address(this), liq);
}
receive() external payable { }
function totalSupply() external view override returns (uint256) { return _totalSupply; }
function decimals() external pure override returns (uint8) { return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure override returns (string memory) { return _name; }
function getOwner() external view override returns (address) { return owner; }
function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
function approve(address spender, uint256 amount) public override returns (bool) {
_allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}
function approveMax(address spender) external returns (bool) {
return approve(spender, type(uint256).max);
}
function transfer(address recipient, uint256 amount) external override returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}
function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if(_allowances[sender][msg.sender] != type(uint256).max){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
}
return _transferFrom(sender, recipient, amount);
}
function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
if (sender!= owner && recipient!= owner) require(tradingOpen, "Trading not yet enabled."); //transfers disabled before openTrading
if (blacklistEnabled) {
require (!isBot[sender] && !isBot[recipient], "Bot!");
}
if (buyLimit) {
if (sender!=owner && recipient!= owner) require (amount<=maxBuy, "Too much sir");
}
if (sender == pair && recipient != address(router) && !isFeeExempt[recipient]) {
require (cooldown[recipient] < block.timestamp);
cooldown[recipient] = block.timestamp + 60 seconds;
}
if(inSwap){ return _basicTransfer(sender, recipient, amount); }
uint256 contractTokenBalance = balanceOf(address(this));
bool overMinTokenBalance = contractTokenBalance >= numTokensSellToAddToLiquidity;
bool shouldSwapBack = (overMinTokenBalance && recipient==pair && balanceOf(address(this)) > 0);
if(shouldSwapBack){ swapBack(); }
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
uint256 amountReceived = shouldTakeFee(sender, recipient) ? takeFee(sender, amount) : amount;
_balances[recipient] = _balances[recipient].add(amountReceived);
if(sender != pair && !isDividendExempt[sender]){ try distributor.setShare(sender, _balances[sender]) {} catch {} }
if(recipient != pair && !isDividendExempt[recipient]){ try distributor.setShare(recipient, _balances[recipient]) {} catch {} }
emit Transfer(sender, recipient, amountReceived);
return true;
}
function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}
function shouldTakeFee(address sender, address recipient) internal view returns (bool) {
return ( !(isFeeExempt[sender] || isFeeExempt[recipient]) && (sender == pair || recipient == pair) );
}
function takeFee(address sender, uint256 amount) internal returns (uint256) {
uint256 feeAmount = amount.mul(totalFee).div(feeDenominator);
_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
return amount.sub(feeAmount);
}
function swapBack() internal swapping {
uint256 amountToSwap = 0;
if(!stable){
amountToSwap = numTokensSellToAddToLiquidity;
}
else{
amountToSwap = balanceOf(address(this));
}
swapTokensForEth(amountToSwap.div(2));
swapTokensForTOKEN(amountToSwap.div(2));
uint256 dividends = IERC20(VISTA).balanceOf(address(this));
bool success = IERC20(VISTA).transfer(address(distributor), dividends);
if (success) {
distributor.deposit(dividends);
}
payable(marketingWallet).transfer(address(this).balance);
}
function swapTokensForTOKEN(uint256 tokenAmount) private {
address[] memory path = new address[](3);
path[0] = address(this);
path[1] = WETH;
path[2] = VISTA;
// make the swap
router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}
function swapTokensForEth(uint256 tokenAmount) private {
// generate the uniswap pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = WETH;
// make the swap
router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp
);
}
function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {
// add the liquidity
router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
owner,
block.timestamp
);
}
function openTrading() external onlyOwner {
launchedAt = block.number;
tradingOpen = true;
}
function setBot(address _address, bool toggle) external onlyOwner {
isBot[_address] = toggle;
_setIsDividendExempt(_address, toggle);
}
function _setIsDividendExempt(address holder, bool exempt) internal {
require(holder != address(this) && holder != pair);
isDividendExempt[holder] = exempt;
if(exempt){
distributor.setShare(holder, 0);
}else{
distributor.setShare(holder, _balances[holder]);
}
}
function setIsDividendExempt(address holder, bool exempt) external onlyOwner {
_setIsDividendExempt(holder, exempt);
}
function setIsFeeExempt(address holder, bool exempt) external onlyOwner {
isFeeExempt[holder] = exempt;
}
function setFee (uint256 _fee) external onlyOwner {
require (_fee <= 14, "Fee can't exceed 14%");
totalFee = _fee;
}
function manualSend() external onlyOwner {
uint256 contractETHBalance = address(this).balance;
payable(marketingWallet).transfer(contractETHBalance);
}
function setStable(bool _stable) external onlyOwner {
stable = _stable;
}
function claimDividend() external {
distributor.claimDividend(msg.sender);
}
function claimDividend(address holder) external onlyOwner {
distributor.claimDividend(holder);
}
function getClaimableDividendOf(address shareholder) public view returns (uint256) {
return distributor.getClaimableDividendOf(shareholder);
}
function manualBurn(uint256 amount) external onlyOwner returns (bool) {
return _basicTransfer(address(this), DEAD, amount);
}
function getCirculatingSupply() public view returns (uint256) {
return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
}
function setMarketingWallet(address _marketingWallet) external onlyOwner {
marketingWallet = payable(_marketingWallet);
}
function getTotalDividends() external view returns (uint256) {
return distributor.totalDividends();
}
function getTotalClaimed() external view returns (uint256) {
return distributor.totalClaimed();
}
function getDividendsClaimedOf (address shareholder) external view returns (uint256) {
return distributor.getDividendsClaimedOf(shareholder);
}
function removeBuyLimit() external onlyOwner {
buyLimit = false;
}
function checkBot(address account) public view returns (bool) {
return isBot[account];
}
function checkPair() public view returns (address) {
return pair;
}
function setBlacklistEnabled() external onlyOwner {
require (blacklistEnabled == false, "can only be called once");
blacklistEnabled = true;
}
function setSwapThresholdAmount (uint256 amount) external onlyOwner {
require (amount <= _totalSupply.div(100), "can't exceed 1%");
numTokensSellToAddToLiquidity = amount * 10 ** 9;
}
function getPrice() public view returns (uint256) {
uint256 memepBalance = this.balanceOf(pair);
uint256 ethBalance = IERC20(WETH).balanceOf(pair);
require(memepBalance > 0, "divison by zero error");
uint256 price = ethBalance.mul(1e9).div(memepBalance);
return price;
}
}