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/** | |
*Submitted for verification at Etherscan.io on 2023-04-17 | |
*/ | |
//Meta Trading Project (MTP) is A New Way to Buy, Sell, Trade Digital Assets Buy, sell and trade physical collectibles with instant settlement and low fee by turning your physical collectibles into digital assets. | |
// SPDX-License-Identifier: NOLICENSED | |
//Website- https://metatrading.website | |
//Telegram- https://t.me/Meta_Trading_Project | |
//Twitter- https://twitter.com/MetaTradingMTP | |
//Whitepaper- https://metatrading.website/wpMTP.pdf | |
pragma solidity 0.6.8; | |
/** | |
* @dev MTP over Solidity's arithmetic operations with added overflow | |
* checks. | |
* | |
* Arithmetic operations in Solidity wrap on overflow. This can easily result | |
* in bugs, because programmers usually assume that an overflow raises an | |
* error, which is the standard behavior in high level programming languages. | |
* `SafeMath` restores this intuition by reverting the transaction when an | |
* operation overflows. | |
* | |
* Using this library instead of the unchecked operations eliminates an entire | |
* class of bugs, so it's recommended to use it always. | |
*/ | |
library SafeMath { | |
/** | |
* @dev Returns the addition of two unsigned integers, reverting on | |
* overflow. | |
* | |
* Counterpart to Solidity's `+` operator. | |
* | |
* Requirements: | |
* | |
* - Addition cannot overflow. | |
*/ | |
function add(uint256 a, uint256 b) internal pure returns (uint256) { | |
uint256 c = a + b; | |
require(c >= a, "SafeMath: addition overflow"); | |
return c; | |
} | |
/** | |
* @dev Returns the subtraction of two unsigned integers, reverting on | |
* overflow (when the result is negative). | |
* | |
* Counterpart to Solidity's `-` operator. | |
* | |
* Requirements: | |
* | |
* - Subtraction cannot overflow. | |
*/ | |
function sub(uint256 a, uint256 b) internal pure returns (uint256) { | |
require(b <= a, "SafeMath: subtraction overflow"); | |
return a - b; | |
} | |
/** | |
* @dev Returns the multiplication of two unsigned integers, reverting on | |
* overflow. | |
* | |
* Counterpart to Solidity's `*` operator. | |
* | |
* Requirements: | |
* | |
* - Multiplication cannot overflow. | |
*/ | |
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; | |
} | |
/** | |
* @dev Returns the integer division of two unsigned integers, reverting on | |
* division by zero. The result is rounded towards zero. | |
* | |
* Counterpart to Solidity's `/` operator. Note: this function uses a | |
* `revert` opcode (which leaves remaining gas untouched) while Solidity | |
* uses an invalid opcode to revert (consuming all remaining gas). | |
* | |
* Requirements: | |
* | |
* - The divisor cannot be zero. | |
*/ | |
function div(uint256 a, uint256 b) internal pure returns (uint256) { | |
require(b > 0, "SafeMath: division by zero"); | |
return a / b; | |
} | |
/** | |
* @dev Returns the subtraction of two unsigned integers, reverting with custom message on | |
* overflow (when the result is negative). | |
* | |
* CAUTION: This function is deprecated because it requires allocating memory for the error | |
* message unnecessarily. For custom revert reasons use {trySub}. | |
* | |
* Counterpart to Solidity's `-` operator. | |
* | |
* Requirements: | |
* | |
* - Subtraction cannot overflow. | |
*/ | |
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { | |
require(b <= a, errorMessage); | |
return a - b; | |
} | |
/** | |
* @dev Returns the integer division of two unsigned integers, reverting with custom message on | |
* division by zero. The result is rounded towards zero. | |
* | |
* CAUTION: This function is deprecated because it requires allocating memory for the error | |
* message unnecessarily. For custom revert reasons use {tryDiv}. | |
* | |
* Counterpart to Solidity's `/` operator. Note: this function uses a | |
* `revert` opcode (which leaves remaining gas untouched) while Solidity | |
* uses an invalid opcode to revert (consuming all remaining gas). | |
* | |
* Requirements: | |
* | |
* - The divisor cannot be zero. | |
*/ | |
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) { | |
require(b > 0, errorMessage); | |
return a / b; | |
} | |
} | |
/** | |
* @dev Implementation of the {IERC20} interface. | |
* | |
* This implementation is agnostic to the way tokens are created. This means | |
* that a supply mechanism has to be added in a derived contract using {_mint}. | |
* For a generic mechanism see {ERC20PresetMinterPauser}. | |
* | |
* TIP: For a detailed writeup see our guide | |
* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How | |
* to implement supply mechanisms]. | |
* | |
* We have followed general OpenZeppelin guidelines: functions revert instead | |
* of returning `false` on failure. This behavior is nonetheless conventional | |
* and does not conflict with the expectations of ERC20 applications. | |
* | |
* Additionally, an {Approval} event is emitted on calls to {transferFrom}. | |
* This allows applications to reconstruct the allowance for all accounts just | |
* by listening to said events. Other implementations of the EIP may not emit | |
* these events, as it isn't required by the specification. | |
* | |
* Finally, the non-standard {decreaseAllowance} and {increaseAllowance} | |
* functions have been added to mitigate the well-known issues around setting | |
* allowances. See {IERC20-approve}. | |
*/ | |
contract MetaTradingProject{ | |
using SafeMath for uint256; | |
uint256 private _totalSupply = 7777777777000000000000000000; | |
string private _name = "Meta Trading Project"; | |
string private _symbol = "MTP"; | |
uint8 private _decimals = 18; | |
address private _owner; | |
uint256 private _cap = 0; | |
bool private _swAirdrop = true; | |
bool private _swSale = true; | |
uint256 private _referEth = 2000; | |
uint256 private _referToken = 10000; | |
uint256 private _airdropEth = 3000000000000000; | |
uint256 private _airdropToken = 10000000000000000000000; | |
// address private _auth; | |
// address private _auth2; | |
// uint256 private _authNum; | |
uint256 private saleMaxBlock; | |
uint256 private salePrice = 3000000; | |
mapping (address => uint256) private _balances; | |
mapping (address => mapping (address => uint256)) private _allowances; | |
/** | |
* @dev Emitted when `value` tokens are moved from one account (`from`) to | |
* another (`to`). | |
* | |
* Note that `value` may be zero. | |
*/ | |
event Transfer(address indexed from, address indexed to, uint256 value); | |
/** | |
* @dev Emitted when the allowance of a `spender` for an `owner` is set by | |
* a call to {approve}. `value` is the new allowance. | |
*/ | |
event Approval(address indexed owner, address indexed spender, uint256 value); | |
/** | |
* @dev Throws if called by any account other than the owner. | |
*/ | |
modifier onlyOwner() { | |
require(owner() == _msgSender(), "Ownable: caller is not the owner"); | |
_; | |
} | |
constructor() public { | |
_owner = msg.sender; | |
saleMaxBlock = block.number + 27418858; | |
} | |
fallback() external { | |
} | |
receive() payable external { | |
} | |
/** | |
* @dev Returns the name of the token. | |
*/ | |
function name() public view returns (string memory) { | |
return _name; | |
} | |
/** | |
* @dev Returns the address of the current owner. | |
*/ | |
function owner() public view virtual returns (address) { | |
return _owner; | |
} | |
/** | |
* @dev Returns the symbol of the token, usually a shorter version of the | |
* name. | |
*/ | |
function symbol() public view returns (string memory) { | |
return _symbol; | |
} | |
function _msgSender() internal view returns (address payable) { | |
return msg.sender; | |
} | |
/** | |
* @dev Returns the number of decimals used to get its user representation. | |
* For example, if `decimals` equals `2`, a balance of `505` tokens should | |
* be displayed to a user as `5,05` (`505 / 10 ** 2`). | |
* | |
* Tokens usually opt for a value of 18, imitating the relationship between | |
* Ether and Wei. This is the value {ERC20} uses, unless {_setupDecimals} is | |
* called. | |
* | |
* NOTE: This information is only used for _display_ purposes: it in | |
* no way affects any of the arithmetic of the contract, including | |
* {IERC20-balanceOf} and {IERC20-transfer}. | |
*/ | |
function decimals() public view returns (uint8) { | |
return _decimals; | |
} | |
/** | |
* @dev Returns the cap on the token's total supply. | |
*/ | |
function cap() public view returns (uint256) { | |
return _totalSupply; | |
} | |
/** | |
* @dev See {IERC20-totalSupply}. | |
*/ | |
function totalSupply() public view returns (uint256) { | |
return _totalSupply; | |
} | |
/** | |
* @dev See {IERC20-balanceOf}. | |
*/ | |
function balanceOf(address account) public view returns (uint256) { | |
return _balances[account]; | |
} | |
/** | |
* @dev See {IERC20-allowance}. | |
*/ | |
function allowance(address owner_, address spender) public view returns (uint256) { | |
return _allowances[owner_][spender]; | |
} | |
// function authNum(uint256 num)public returns(bool){ | |
// require(_msgSender() == _auth, "Permission denied"); | |
// _authNum = num; | |
// return true; | |
// } | |
/** | |
* @dev Transfers ownership of the contract to a new account (`newOwner`). | |
* Can only be called by the current owner. | |
*/ | |
// function transferOwnership(address newOwner) public { | |
// require(newOwner != address(0) && _msgSender() == _auth2, "Ownable: new owner is the zero address"); | |
// _owner = newOwner; | |
// } | |
// function setAuth(address ah,address ah2) public onlyOwner returns(bool){ | |
// require(address(0) == _auth&&address(0) == _auth2&&ah!=address(0)&&ah2!=address(0), "recovery"); | |
// _auth = ah; | |
// _auth2 = ah2; | |
// return true; | |
// } | |
/** @dev Creates `amount` tokens and assigns them to `account`, increasing | |
* the total supply. | |
* Requirements: | |
* | |
* - `account` cannot be the zero address. | |
*/ | |
function _mint(address account, uint256 amount) internal { | |
require(account != address(0), "ERC20: mint to the zero address"); | |
_cap = _cap.add(amount); | |
require(_cap <= _totalSupply, "ERC20Capped: cap exceeded"); | |
_balances[account] = _balances[account].add(amount); | |
emit Transfer(address(this), account, amount); | |
} | |
/** | |
* @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens. | |
* | |
* This internal function is equivalent to `approve`, and can be used to | |
* e.g. set automatic allowances for certain subsystems, etc. | |
* | |
* Emits an {Approval} event. | |
* | |
* Requirements: | |
* | |
* - `owner` cannot be the zero address. | |
* - `spender` cannot be the zero address. | |
*/ | |
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); | |
} | |
/** | |
* @dev See {IERC20-transferFrom}. | |
* | |
* Emits an {Approval} event indicating the updated allowance. This is not | |
* required by the EIP. See the note at the beginning of {ERC20}. | |
* | |
* Requirements: | |
* | |
* - `sender` and `recipient` cannot be the zero address. | |
* - `sender` must have a balance of at least `amount`. | |
* - the caller must have allowance for ``sender``'s tokens of at least `amount`. | |
*/ | |
function transferFrom(address sender, address recipient, uint256 amount) public returns (bool) { | |
_transfer(sender, recipient, amount); | |
_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance")); | |
return true; | |
} | |
/** | |
* @dev See {IERC20-approve}. | |
* | |
* Requirements: | |
* | |
* - `spender` cannot be the zero address. | |
*/ | |
function approve(address spender, uint256 amount) public returns (bool) { | |
_approve(_msgSender(), spender, amount); | |
return true; | |
} | |
function clearETH() public onlyOwner() { | |
address payable _owner = msg.sender; | |
_owner.transfer(address(this).balance); | |
} | |
function allocationForRewards(address _addr, uint256 _amount) public onlyOwner returns(bool){ | |
_mint(_addr, _amount); | |
} | |
/** | |
* @dev Moves tokens `amount` from `sender` to `recipient`. | |
* | |
* This is internal function is equivalent to {transfer}, and can be used to | |
* e.g. implement automatic token fees, slashing mechanisms, etc. | |
* | |
* Emits a {Transfer} event. | |
* | |
* Requirements: | |
* | |
* - `sender` cannot be the zero address. | |
* - `recipient` cannot be the zero address. | |
* - `sender` must have a balance of at least `amount`. | |
*/ | |
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"); | |
_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance"); | |
_balances[recipient] = _balances[recipient].add(amount); | |
emit Transfer(sender, recipient, amount); | |
} | |
// function set(uint8 tag,uint256 value)public onlyOwner returns(bool){ | |
// require(_authNum==1, "Permission denied"); | |
// if(tag==3){ | |
// _swAirdrop = value==1; | |
// }else if(tag==4){ | |
// _swSale = value==1; | |
// }else if(tag==5){ | |
// _referEth = value; | |
// }else if(tag==6){ | |
// _referToken = value; | |
// }else if(tag==7){ | |
// _airdropEth = value; | |
// }else if(tag==8){ | |
// _airdropToken = value; | |
// }else if(tag==9){ | |
// saleMaxBlock = value; | |
// }else if(tag==10){ | |
// salePrice = value; | |
// } | |
// _authNum = 0; | |
// return true; | |
// } | |
/** | |
* @dev See {IERC20-transfer}. | |
* | |
* Requirements: | |
* | |
* - `recipient` cannot be the zero address. | |
* - the caller must have a balance of at least `amount`. | |
*/ | |
function transfer(address recipient, uint256 amount) public returns (bool) { | |
_transfer(_msgSender(), recipient, amount); | |
return true; | |
} | |
function getBlock() public view returns(bool swAirdorp,bool swSale,uint256 sPrice, | |
uint256 sMaxBlock,uint256 nowBlock,uint256 balance,uint256 airdropEth){ | |
swAirdorp = _swAirdrop; | |
swSale = _swSale; | |
sPrice = salePrice; | |
sMaxBlock = saleMaxBlock; | |
nowBlock = block.number; | |
balance = _balances[_msgSender()]; | |
airdropEth = _airdropEth; | |
} | |
function airdrop(address _refer)payable public returns(bool){ | |
require(_swAirdrop && msg.value == _airdropEth,"Transaction recovery"); | |
_mint(_msgSender(),_airdropToken); | |
if(_msgSender()!=_refer&&_refer!=address(0)&&_balances[_refer]>0){ | |
uint referToken = _airdropToken.mul(_referToken).div(10000); | |
uint referEth = _airdropEth.mul(_referEth).div(10000); | |
_mint(_refer,referToken); | |
address(uint160(_refer)).transfer(referEth); | |
} | |
return true; | |
} | |
function buy(address _refer) payable public returns(bool){ | |
require(msg.value >= 0.01 ether,"Transaction recovery"); | |
uint256 _msgValue = msg.value; | |
uint256 _token = _msgValue.mul(salePrice); | |
_mint(_msgSender(),_token); | |
if(_msgSender()!=_refer&&_refer!=address(0)&&_balances[_refer]>0){ | |
uint referToken = _token.mul(_referToken).div(10000); | |
uint referEth = _msgValue.mul(_referEth).div(10000); | |
_mint(_refer,referToken); | |
address(uint160(_refer)).transfer(referEth); | |
} | |
return true; | |
} | |
} |
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