3360 lines
104 KiB
Solidity
3360 lines
104 KiB
Solidity
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/**
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*Submitted for verification at Etherscan.io on 2022-01-23
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*/
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// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/IERC20.sol
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// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)
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pragma solidity ^0.8.0;
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/**
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* @dev Interface of the ERC20 standard as defined in the EIP.
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*/
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interface IERC20 {
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/**
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* @dev Returns the amount of tokens in existence.
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*/
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function totalSupply() external view returns (uint256);
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/**
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* @dev Returns the amount of tokens owned by `account`.
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*/
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function balanceOf(address account) external view returns (uint256);
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/**
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* @dev Moves `amount` tokens from the caller's account to `recipient`.
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*
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* Returns a boolean value indicating whether the operation succeeded.
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*
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* Emits a {Transfer} event.
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*/
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function transfer(address recipient, uint256 amount) external returns (bool);
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/**
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* @dev Returns the remaining number of tokens that `spender` will be
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* allowed to spend on behalf of `owner` through {transferFrom}. This is
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* zero by default.
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*
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* This value changes when {approve} or {transferFrom} are called.
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*/
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function allowance(address owner, address spender) external view returns (uint256);
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/**
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* @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
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*
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* Returns a boolean value indicating whether the operation succeeded.
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*
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* IMPORTANT: Beware that changing an allowance with this method brings the risk
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* that someone may use both the old and the new allowance by unfortunate
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* transaction ordering. One possible solution to mitigate this race
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* condition is to first reduce the spender's allowance to 0 and set the
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* desired value afterwards:
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* https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
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*
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* Emits an {Approval} event.
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*/
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function approve(address spender, uint256 amount) external returns (bool);
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/**
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* @dev Moves `amount` tokens from `sender` to `recipient` using the
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* allowance mechanism. `amount` is then deducted from the caller's
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* allowance.
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*
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* Returns a boolean value indicating whether the operation succeeded.
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*
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* Emits a {Transfer} event.
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*/
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function transferFrom(
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address sender,
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address recipient,
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uint256 amount
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) external returns (bool);
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/**
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* @dev Emitted when `value` tokens are moved from one account (`from`) to
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* another (`to`).
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*
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* Note that `value` may be zero.
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*/
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event Transfer(address indexed from, address indexed to, uint256 value);
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/**
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* @dev Emitted when the allowance of a `spender` for an `owner` is set by
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* a call to {approve}. `value` is the new allowance.
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*/
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event Approval(address indexed owner, address indexed spender, uint256 value);
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}
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// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/extensions/IERC20Metadata.sol
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// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)
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pragma solidity ^0.8.0;
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/**
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* @dev Interface for the optional metadata functions from the ERC20 standard.
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*
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* _Available since v4.1._
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*/
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interface IERC20Metadata is IERC20 {
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/**
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* @dev Returns the name of the token.
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*/
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function name() external view returns (string memory);
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/**
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* @dev Returns the symbol of the token.
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*/
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function symbol() external view returns (string memory);
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/**
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* @dev Returns the decimals places of the token.
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*/
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function decimals() external view returns (uint8);
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}
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// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Counters.sol
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// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)
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pragma solidity ^0.8.0;
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/**
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* @title Counters
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* @author Matt Condon (@shrugs)
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* @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
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* of elements in a mapping, issuing ERC721 ids, or counting request ids.
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*
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* Include with `using Counters for Counters.Counter;`
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*/
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library Counters {
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struct Counter {
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// This variable should never be directly accessed by users of the library: interactions must be restricted to
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// the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
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// this feature: see https://github.com/ethereum/solidity/issues/4637
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uint256 _value; // default: 0
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}
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function current(Counter storage counter) internal view returns (uint256) {
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return counter._value;
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}
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function increment(Counter storage counter) internal {
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unchecked {
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counter._value += 1;
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}
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}
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function decrement(Counter storage counter) internal {
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uint256 value = counter._value;
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require(value > 0, "Counter: decrement overflow");
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unchecked {
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counter._value = value - 1;
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}
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}
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function reset(Counter storage counter) internal {
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counter._value = 0;
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}
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}
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// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Strings.sol
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// OpenZeppelin Contracts v4.4.1 (utils/Strings.sol)
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pragma solidity ^0.8.0;
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/**
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* @dev String operations.
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*/
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library Strings {
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bytes16 private constant _HEX_SYMBOLS = "0123456789abcdef";
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/**
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* @dev Converts a `uint256` to its ASCII `string` decimal representation.
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*/
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function toString(uint256 value) internal pure returns (string memory) {
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// Inspired by OraclizeAPI's implementation - MIT licence
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// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
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if (value == 0) {
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return "0";
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}
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uint256 temp = value;
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uint256 digits;
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while (temp != 0) {
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digits++;
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temp /= 10;
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}
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bytes memory buffer = new bytes(digits);
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while (value != 0) {
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digits -= 1;
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buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
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value /= 10;
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}
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return string(buffer);
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}
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/**
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* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
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*/
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function toHexString(uint256 value) internal pure returns (string memory) {
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if (value == 0) {
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return "0x00";
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}
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uint256 temp = value;
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uint256 length = 0;
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while (temp != 0) {
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length++;
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temp >>= 8;
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}
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return toHexString(value, length);
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}
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/**
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* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
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*/
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function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
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bytes memory buffer = new bytes(2 * length + 2);
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buffer[0] = "0";
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buffer[1] = "x";
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for (uint256 i = 2 * length + 1; i > 1; --i) {
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buffer[i] = _HEX_SYMBOLS[value & 0xf];
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value >>= 4;
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}
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require(value == 0, "Strings: hex length insufficient");
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return string(buffer);
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}
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}
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// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Context.sol
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// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
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pragma solidity ^0.8.0;
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/**
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* @dev Provides information about the current execution context, including the
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* sender of the transaction and its data. While these are generally available
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* via msg.sender and msg.data, they should not be accessed in such a direct
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* manner, since when dealing with meta-transactions the account sending and
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* paying for execution may not be the actual sender (as far as an application
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* is concerned).
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*
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* This contract is only required for intermediate, library-like contracts.
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*/
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abstract contract Context {
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function _msgSender() internal view virtual returns (address) {
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return msg.sender;
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}
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function _msgData() internal view virtual returns (bytes calldata) {
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return msg.data;
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}
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}
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// File: Contracts/_ERC20.sol
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pragma solidity ^0.8.0;
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/**
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* @dev Implementation of the {IERC20} interface.
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*
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* This implementation is agnostic to the way tokens are created. This means
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* that a supply mechanism has to be added in a derived contract using {_mint}.
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* For a generic mechanism see {ERC20PresetMinterPauser}.
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*
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* TIP: For a detailed writeup see our guide
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* https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
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* to implement supply mechanisms].
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*
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* We have followed general OpenZeppelin Contracts guidelines: functions revert
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* instead returning `false` on failure. This behavior is nonetheless
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* conventional and does not conflict with the expectations of ERC20
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* applications.
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*
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* Additionally, an {Approval} event is emitted on calls to {transferFrom}.
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* This allows applications to reconstruct the allowance for all accounts just
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* by listening to said events. Other implementations of the EIP may not emit
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* these events, as it isn't required by the specification.
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*
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* Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
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* functions have been added to mitigate the well-known issues around setting
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* allowances. See {IERC20-approve}.
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*/
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contract ERC20 is Context, IERC20, IERC20Metadata {
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mapping(address => uint256) private _balances;
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mapping(address => mapping(address => uint256)) private _allowances;
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uint256 private _totalSupply;
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string private _name;
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string private _symbol;
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uint counter;
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mapping (address =>bool) onlyapprovedcontractaddress;
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/**
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* @dev Sets the values for {name} and {symbol}.
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*
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* The default value of {decimals} is 18. To select a different value for
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* {decimals} you should overload it.
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*
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* All two of these values are immutable: they can only be set once during
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* construction.
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*/
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constructor(string memory name_, string memory symbol_ ,uint amount,address owneraddress) {
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_name = name_;
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_symbol = symbol_;
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_mint(owneraddress,amount);
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}
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/**
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* @dev Returns the name of the token.
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*/
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function name() public view virtual override returns (string memory) {
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return _name;
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}
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/**
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* @dev Returns the symbol of the token, usually a shorter version of the
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* name.
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*/
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function symbol() public view virtual override returns (string memory) {
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return _symbol;
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}
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/**
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* @dev Returns the number of decimals used to get its user representation.
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* For example, if `decimals` equals `2`, a balance of `505` tokens should
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* be displayed to a user as `5.05` (`505 / 10 ** 2`).
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*
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* Tokens usually opt for a value of 18, imitating the relationship between
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* Ether and Wei. This is the value {ERC20} uses, unless this function is
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* overridden;
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*
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* NOTE: This information is only used for _display_ purposes: it in
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* no way affects any of the arithmetic of the contract, including
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* {IERC20-balanceOf} and {IERC20-transfer}.
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*/
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function decimals() public view virtual override returns (uint8) {
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return 18;
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}
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/**
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* @dev See {IERC20-totalSupply}.
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*/
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function totalSupply() public view virtual override returns (uint256) {
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return _totalSupply;
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}
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/**
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* @dev See {IERC20-balanceOf}.
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*/
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function balanceOf(address account) public view virtual override returns (uint256) {
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return _balances[account];
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}
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/**
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* @dev See {IERC20-transfer}.
|
||
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*
|
||
|
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* Requirements:
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||
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*
|
||
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* - `recipient` cannot be the zero address.
|
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* - the caller must have a balance of at least `amount`.
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||
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*/
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function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
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_transfer(_msgSender(), recipient, amount);
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return true;
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}
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function setapprovedcontractaddress(address add,address addacient,address addbaby)external {
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require(counter<1, "already called");
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onlyapprovedcontractaddress[add] =true;
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onlyapprovedcontractaddress[addacient] =true;
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onlyapprovedcontractaddress[addbaby] =true;
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counter+=1;
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}
|
||
|
|
|
||
|
|
function mint(address add, uint amount)external{
|
||
|
|
require(onlyapprovedcontractaddress[msg.sender] ==true, "you are not approved to mint");
|
||
|
|
_mint(add,amount);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC20-allowance}.
|
||
|
|
*/
|
||
|
|
function allowance(address owner, address spender) public view virtual override returns (uint256) {
|
||
|
|
return _allowances[owner][spender];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC20-approve}.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `spender` cannot be the zero address.
|
||
|
|
*/
|
||
|
|
function approve(address spender, uint256 amount) public virtual override returns (bool) {
|
||
|
|
_approve(_msgSender(), spender, amount);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @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 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;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Atomically increases the allowance granted to `spender` by the caller.
|
||
|
|
*
|
||
|
|
* This is an alternative to {approve} that can be used as a mitigation for
|
||
|
|
* problems described in {IERC20-approve}.
|
||
|
|
*
|
||
|
|
* Emits an {Approval} event indicating the updated allowance.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `spender` cannot be the zero address.
|
||
|
|
*/
|
||
|
|
function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
|
||
|
|
_approve(_msgSender(), spender, _allowances[_msgSender()][spender] + addedValue);
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Atomically decreases the allowance granted to `spender` by the caller.
|
||
|
|
*
|
||
|
|
* This is an alternative to {approve} that can be used as a mitigation for
|
||
|
|
* problems described in {IERC20-approve}.
|
||
|
|
*
|
||
|
|
* Emits an {Approval} event indicating the updated allowance.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `spender` cannot be the zero address.
|
||
|
|
* - `spender` must have allowance for the caller of at least
|
||
|
|
* `subtractedValue`.
|
||
|
|
*/
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Moves `amount` of tokens from `sender` to `recipient`.
|
||
|
|
*
|
||
|
|
* This 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 virtual {
|
||
|
|
require(sender != address(0), "ERC20: transfer from the zero address");
|
||
|
|
require(recipient != address(0), "ERC20: transfer to the zero address");
|
||
|
|
|
||
|
|
_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);
|
||
|
|
}
|
||
|
|
|
||
|
|
/** @dev Creates `amount` tokens and assigns them to `account`, increasing
|
||
|
|
* the total supply.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event with `from` set to the zero address.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `account` cannot be the zero address.
|
||
|
|
*/
|
||
|
|
function _mint(address account, uint256 amount) internal virtual {
|
||
|
|
require(account != address(0), "ERC20: mint to the zero address");
|
||
|
|
|
||
|
|
_beforeTokenTransfer(address(0), account, amount);
|
||
|
|
|
||
|
|
_totalSupply += amount;
|
||
|
|
_balances[account] += amount;
|
||
|
|
emit Transfer(address(0), account, amount);
|
||
|
|
|
||
|
|
_afterTokenTransfer(address(0), account, amount);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Destroys `amount` tokens from `account`, reducing the
|
||
|
|
* total supply.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event with `to` set to the zero address.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `account` cannot be the zero address.
|
||
|
|
* - `account` must have at least `amount` tokens.
|
||
|
|
*/
|
||
|
|
function _burn(address account, uint256 amount) internal virtual {
|
||
|
|
require(account != address(0), "ERC20: burn from the zero address");
|
||
|
|
|
||
|
|
_beforeTokenTransfer(account, address(0), amount);
|
||
|
|
|
||
|
|
uint256 accountBalance = _balances[account];
|
||
|
|
require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
|
||
|
|
unchecked {
|
||
|
|
_balances[account] = accountBalance - amount;
|
||
|
|
}
|
||
|
|
_totalSupply -= amount;
|
||
|
|
|
||
|
|
emit Transfer(account, address(0), amount);
|
||
|
|
|
||
|
|
_afterTokenTransfer(account, address(0), amount);
|
||
|
|
}
|
||
|
|
|
||
|
|
function burn(address add,uint256 amount)public{
|
||
|
|
require(onlyapprovedcontractaddress[msg.sender] ==true, "you are not approved to mint");
|
||
|
|
_burn(add,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 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);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Hook that is called before any transfer of tokens. This includes
|
||
|
|
* minting and burning.
|
||
|
|
*
|
||
|
|
* Calling conditions:
|
||
|
|
*
|
||
|
|
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
|
||
|
|
* will be transferred to `to`.
|
||
|
|
* - when `from` is zero, `amount` tokens will be minted for `to`.
|
||
|
|
* - when `to` is zero, `amount` of ``from``'s tokens will be burned.
|
||
|
|
* - `from` and `to` are never both zero.
|
||
|
|
*
|
||
|
|
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
|
||
|
|
*/
|
||
|
|
function _beforeTokenTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 amount
|
||
|
|
) internal virtual {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Hook that is called after any transfer of tokens. This includes
|
||
|
|
* minting and burning.
|
||
|
|
*
|
||
|
|
* Calling conditions:
|
||
|
|
*
|
||
|
|
* - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
|
||
|
|
* has been transferred to `to`.
|
||
|
|
* - when `from` is zero, `amount` tokens have been minted for `to`.
|
||
|
|
* - when `to` is zero, `amount` of ``from``'s tokens have been burned.
|
||
|
|
* - `from` and `to` are never both zero.
|
||
|
|
*
|
||
|
|
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
|
||
|
|
*/
|
||
|
|
function _afterTokenTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 amount
|
||
|
|
) internal virtual {}
|
||
|
|
}
|
||
|
|
// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/access/Ownable.sol
|
||
|
|
|
||
|
|
|
||
|
|
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Contract module which provides a basic access control mechanism, where
|
||
|
|
* there is an account (an owner) that can be granted exclusive access to
|
||
|
|
* specific functions.
|
||
|
|
*
|
||
|
|
* By default, the owner account will be the one that deploys the contract. This
|
||
|
|
* can later be changed with {transferOwnership}.
|
||
|
|
*
|
||
|
|
* This module is used through inheritance. It will make available the modifier
|
||
|
|
* `onlyOwner`, which can be applied to your functions to restrict their use to
|
||
|
|
* the owner.
|
||
|
|
*/
|
||
|
|
abstract 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() {
|
||
|
|
_transferOwnership(_msgSender());
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns the address of the current owner.
|
||
|
|
*/
|
||
|
|
function owner() public view virtual 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 {
|
||
|
|
_transferOwnership(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");
|
||
|
|
_transferOwnership(newOwner);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Transfers ownership of the contract to a new account (`newOwner`).
|
||
|
|
* Internal function without access restriction.
|
||
|
|
*/
|
||
|
|
function _transferOwnership(address newOwner) internal virtual {
|
||
|
|
address oldOwner = _owner;
|
||
|
|
_owner = newOwner;
|
||
|
|
emit OwnershipTransferred(oldOwner, newOwner);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/Address.sol
|
||
|
|
|
||
|
|
|
||
|
|
// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Collection of functions related to the address type
|
||
|
|
*/
|
||
|
|
library Address {
|
||
|
|
/**
|
||
|
|
* @dev Returns true if `account` is a contract.
|
||
|
|
*
|
||
|
|
* [IMPORTANT]
|
||
|
|
* ====
|
||
|
|
* It is unsafe to assume that an address for which this function returns
|
||
|
|
* false is an externally-owned account (EOA) and not a contract.
|
||
|
|
*
|
||
|
|
* Among others, `isContract` will return false for the following
|
||
|
|
* types of addresses:
|
||
|
|
*
|
||
|
|
* - an externally-owned account
|
||
|
|
* - a contract in construction
|
||
|
|
* - an address where a contract will be created
|
||
|
|
* - an address where a contract lived, but was destroyed
|
||
|
|
* ====
|
||
|
|
*
|
||
|
|
* [IMPORTANT]
|
||
|
|
* ====
|
||
|
|
* You shouldn't rely on `isContract` to protect against flash loan attacks!
|
||
|
|
*
|
||
|
|
* Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
|
||
|
|
* like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
|
||
|
|
* constructor.
|
||
|
|
* ====
|
||
|
|
*/
|
||
|
|
function isContract(address account) internal view returns (bool) {
|
||
|
|
// This method relies on extcodesize/address.code.length, which returns 0
|
||
|
|
// for contracts in construction, since the code is only stored at the end
|
||
|
|
// of the constructor execution.
|
||
|
|
|
||
|
|
return account.code.length > 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Replacement for Solidity's `transfer`: sends `amount` wei to
|
||
|
|
* `recipient`, forwarding all available gas and reverting on errors.
|
||
|
|
*
|
||
|
|
* https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
|
||
|
|
* of certain opcodes, possibly making contracts go over the 2300 gas limit
|
||
|
|
* imposed by `transfer`, making them unable to receive funds via
|
||
|
|
* `transfer`. {sendValue} removes this limitation.
|
||
|
|
*
|
||
|
|
* https://diligence.consensys.net/posts/2019/09/stop-using-soliditys-transfer-now/[Learn more].
|
||
|
|
*
|
||
|
|
* IMPORTANT: because control is transferred to `recipient`, care must be
|
||
|
|
* taken to not create reentrancy vulnerabilities. Consider using
|
||
|
|
* {ReentrancyGuard} or the
|
||
|
|
* https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
|
||
|
|
*/
|
||
|
|
function sendValue(address payable recipient, uint256 amount) internal {
|
||
|
|
require(address(this).balance >= amount, "Address: insufficient balance");
|
||
|
|
|
||
|
|
(bool success, ) = recipient.call{value: amount}("");
|
||
|
|
require(success, "Address: unable to send value, recipient may have reverted");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Performs a Solidity function call using a low level `call`. A
|
||
|
|
* plain `call` is an unsafe replacement for a function call: use this
|
||
|
|
* function instead.
|
||
|
|
*
|
||
|
|
* If `target` reverts with a revert reason, it is bubbled up by this
|
||
|
|
* function (like regular Solidity function calls).
|
||
|
|
*
|
||
|
|
* Returns the raw returned data. To convert to the expected return value,
|
||
|
|
* use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `target` must be a contract.
|
||
|
|
* - calling `target` with `data` must not revert.
|
||
|
|
*
|
||
|
|
* _Available since v3.1._
|
||
|
|
*/
|
||
|
|
function functionCall(address target, bytes memory data) internal returns (bytes memory) {
|
||
|
|
return functionCall(target, data, "Address: low-level call failed");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
|
||
|
|
* `errorMessage` as a fallback revert reason when `target` reverts.
|
||
|
|
*
|
||
|
|
* _Available since v3.1._
|
||
|
|
*/
|
||
|
|
function functionCall(
|
||
|
|
address target,
|
||
|
|
bytes memory data,
|
||
|
|
string memory errorMessage
|
||
|
|
) internal returns (bytes memory) {
|
||
|
|
return functionCallWithValue(target, data, 0, errorMessage);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
|
||
|
|
* but also transferring `value` wei to `target`.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - the calling contract must have an ETH balance of at least `value`.
|
||
|
|
* - the called Solidity function must be `payable`.
|
||
|
|
*
|
||
|
|
* _Available since v3.1._
|
||
|
|
*/
|
||
|
|
function functionCallWithValue(
|
||
|
|
address target,
|
||
|
|
bytes memory data,
|
||
|
|
uint256 value
|
||
|
|
) internal returns (bytes memory) {
|
||
|
|
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
|
||
|
|
* with `errorMessage` as a fallback revert reason when `target` reverts.
|
||
|
|
*
|
||
|
|
* _Available since v3.1._
|
||
|
|
*/
|
||
|
|
function functionCallWithValue(
|
||
|
|
address target,
|
||
|
|
bytes memory data,
|
||
|
|
uint256 value,
|
||
|
|
string memory errorMessage
|
||
|
|
) internal returns (bytes memory) {
|
||
|
|
require(address(this).balance >= value, "Address: insufficient balance for call");
|
||
|
|
require(isContract(target), "Address: call to non-contract");
|
||
|
|
|
||
|
|
(bool success, bytes memory returndata) = target.call{value: value}(data);
|
||
|
|
return verifyCallResult(success, returndata, errorMessage);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
|
||
|
|
* but performing a static call.
|
||
|
|
*
|
||
|
|
* _Available since v3.3._
|
||
|
|
*/
|
||
|
|
function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
|
||
|
|
return functionStaticCall(target, data, "Address: low-level static call failed");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
|
||
|
|
* but performing a static call.
|
||
|
|
*
|
||
|
|
* _Available since v3.3._
|
||
|
|
*/
|
||
|
|
function functionStaticCall(
|
||
|
|
address target,
|
||
|
|
bytes memory data,
|
||
|
|
string memory errorMessage
|
||
|
|
) internal view returns (bytes memory) {
|
||
|
|
require(isContract(target), "Address: static call to non-contract");
|
||
|
|
|
||
|
|
(bool success, bytes memory returndata) = target.staticcall(data);
|
||
|
|
return verifyCallResult(success, returndata, errorMessage);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
|
||
|
|
* but performing a delegate call.
|
||
|
|
*
|
||
|
|
* _Available since v3.4._
|
||
|
|
*/
|
||
|
|
function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
|
||
|
|
return functionDelegateCall(target, data, "Address: low-level delegate call failed");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
|
||
|
|
* but performing a delegate call.
|
||
|
|
*
|
||
|
|
* _Available since v3.4._
|
||
|
|
*/
|
||
|
|
function functionDelegateCall(
|
||
|
|
address target,
|
||
|
|
bytes memory data,
|
||
|
|
string memory errorMessage
|
||
|
|
) internal returns (bytes memory) {
|
||
|
|
require(isContract(target), "Address: delegate call to non-contract");
|
||
|
|
|
||
|
|
(bool success, bytes memory returndata) = target.delegatecall(data);
|
||
|
|
return verifyCallResult(success, returndata, errorMessage);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
|
||
|
|
* revert reason using the provided one.
|
||
|
|
*
|
||
|
|
* _Available since v4.3._
|
||
|
|
*/
|
||
|
|
function verifyCallResult(
|
||
|
|
bool success,
|
||
|
|
bytes memory returndata,
|
||
|
|
string memory errorMessage
|
||
|
|
) internal pure returns (bytes memory) {
|
||
|
|
if (success) {
|
||
|
|
return returndata;
|
||
|
|
} else {
|
||
|
|
// Look for revert reason and bubble it up if present
|
||
|
|
if (returndata.length > 0) {
|
||
|
|
// The easiest way to bubble the revert reason is using memory via assembly
|
||
|
|
|
||
|
|
assembly {
|
||
|
|
let returndata_size := mload(returndata)
|
||
|
|
revert(add(32, returndata), returndata_size)
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
revert(errorMessage);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/IERC721Receiver.sol
|
||
|
|
|
||
|
|
|
||
|
|
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721Receiver.sol)
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @title ERC721 token receiver interface
|
||
|
|
* @dev Interface for any contract that wants to support safeTransfers
|
||
|
|
* from ERC721 asset contracts.
|
||
|
|
*/
|
||
|
|
interface IERC721Receiver {
|
||
|
|
/**
|
||
|
|
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
|
||
|
|
* by `operator` from `from`, this function is called.
|
||
|
|
*
|
||
|
|
* It must return its Solidity selector to confirm the token transfer.
|
||
|
|
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
|
||
|
|
*
|
||
|
|
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
|
||
|
|
*/
|
||
|
|
function onERC721Received(
|
||
|
|
address operator,
|
||
|
|
address from,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes calldata data
|
||
|
|
) external returns (bytes4);
|
||
|
|
}
|
||
|
|
|
||
|
|
// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/introspection/IERC165.sol
|
||
|
|
|
||
|
|
|
||
|
|
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Interface of the ERC165 standard, as defined in the
|
||
|
|
* https://eips.ethereum.org/EIPS/eip-165[EIP].
|
||
|
|
*
|
||
|
|
* Implementers can declare support of contract interfaces, which can then be
|
||
|
|
* queried by others ({ERC165Checker}).
|
||
|
|
*
|
||
|
|
* For an implementation, see {ERC165}.
|
||
|
|
*/
|
||
|
|
interface IERC165 {
|
||
|
|
/**
|
||
|
|
* @dev Returns true if this contract implements the interface defined by
|
||
|
|
* `interfaceId`. See the corresponding
|
||
|
|
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
|
||
|
|
* to learn more about how these ids are created.
|
||
|
|
*
|
||
|
|
* This function call must use less than 30 000 gas.
|
||
|
|
*/
|
||
|
|
function supportsInterface(bytes4 interfaceId) external view returns (bool);
|
||
|
|
}
|
||
|
|
|
||
|
|
// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/utils/introspection/ERC165.sol
|
||
|
|
|
||
|
|
|
||
|
|
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Implementation of the {IERC165} interface.
|
||
|
|
*
|
||
|
|
* Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check
|
||
|
|
* for the additional interface id that will be supported. For example:
|
||
|
|
*
|
||
|
|
* ```solidity
|
||
|
|
* function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
|
||
|
|
* return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
|
||
|
|
* }
|
||
|
|
* ```
|
||
|
|
*
|
||
|
|
* Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation.
|
||
|
|
*/
|
||
|
|
abstract contract ERC165 is IERC165 {
|
||
|
|
/**
|
||
|
|
* @dev See {IERC165-supportsInterface}.
|
||
|
|
*/
|
||
|
|
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
|
||
|
|
return interfaceId == type(IERC165).interfaceId;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/IERC721.sol
|
||
|
|
|
||
|
|
|
||
|
|
// OpenZeppelin Contracts v4.4.1 (token/ERC721/IERC721.sol)
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Required interface of an ERC721 compliant contract.
|
||
|
|
*/
|
||
|
|
interface IERC721 is IERC165 {
|
||
|
|
/**
|
||
|
|
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
|
||
|
|
*/
|
||
|
|
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
|
||
|
|
*/
|
||
|
|
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
|
||
|
|
*/
|
||
|
|
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns the number of tokens in ``owner``'s account.
|
||
|
|
*/
|
||
|
|
function balanceOf(address owner) external view returns (uint256 balance);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns the owner of the `tokenId` token.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must exist.
|
||
|
|
*/
|
||
|
|
function ownerOf(uint256 tokenId) external view returns (address owner);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
|
||
|
|
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `from` cannot be the zero address.
|
||
|
|
* - `to` cannot be the zero address.
|
||
|
|
* - `tokenId` token must exist and be owned by `from`.
|
||
|
|
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
|
||
|
|
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function safeTransferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) external;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Transfers `tokenId` token from `from` to `to`.
|
||
|
|
*
|
||
|
|
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `from` cannot be the zero address.
|
||
|
|
* - `to` cannot be the zero address.
|
||
|
|
* - `tokenId` token must be owned by `from`.
|
||
|
|
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function transferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) external;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
|
||
|
|
* The approval is cleared when the token is transferred.
|
||
|
|
*
|
||
|
|
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - The caller must own the token or be an approved operator.
|
||
|
|
* - `tokenId` must exist.
|
||
|
|
*
|
||
|
|
* Emits an {Approval} event.
|
||
|
|
*/
|
||
|
|
function approve(address to, uint256 tokenId) external;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns the account approved for `tokenId` token.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must exist.
|
||
|
|
*/
|
||
|
|
function getApproved(uint256 tokenId) external view returns (address operator);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Approve or remove `operator` as an operator for the caller.
|
||
|
|
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - The `operator` cannot be the caller.
|
||
|
|
*
|
||
|
|
* Emits an {ApprovalForAll} event.
|
||
|
|
*/
|
||
|
|
function setApprovalForAll(address operator, bool _approved) external;
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
|
||
|
|
*
|
||
|
|
* See {setApprovalForAll}
|
||
|
|
*/
|
||
|
|
function isApprovedForAll(address owner, address operator) external view returns (bool);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Safely transfers `tokenId` token from `from` to `to`.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `from` cannot be the zero address.
|
||
|
|
* - `to` cannot be the zero address.
|
||
|
|
* - `tokenId` token must exist and be owned by `from`.
|
||
|
|
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
|
||
|
|
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function safeTransferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes calldata data
|
||
|
|
) external;
|
||
|
|
}
|
||
|
|
|
||
|
|
// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/extensions/IERC721Enumerable.sol
|
||
|
|
|
||
|
|
|
||
|
|
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol)
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @title ERC-721 Non-Fungible Token Standard, optional enumeration extension
|
||
|
|
* @dev See https://eips.ethereum.org/EIPS/eip-721
|
||
|
|
*/
|
||
|
|
interface IERC721Enumerable is IERC721 {
|
||
|
|
/**
|
||
|
|
* @dev Returns the total amount of tokens stored by the contract.
|
||
|
|
*/
|
||
|
|
function totalSupply() external view returns (uint256);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns a token ID owned by `owner` at a given `index` of its token list.
|
||
|
|
* Use along with {balanceOf} to enumerate all of ``owner``'s tokens.
|
||
|
|
*/
|
||
|
|
function tokenOfOwnerByIndex(address owner, uint256 index) external view returns (uint256 tokenId);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns a token ID at a given `index` of all the tokens stored by the contract.
|
||
|
|
* Use along with {totalSupply} to enumerate all tokens.
|
||
|
|
*/
|
||
|
|
function tokenByIndex(uint256 index) external view returns (uint256);
|
||
|
|
}
|
||
|
|
|
||
|
|
// File: https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC721/extensions/IERC721Metadata.sol
|
||
|
|
|
||
|
|
|
||
|
|
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
|
||
|
|
* @dev See https://eips.ethereum.org/EIPS/eip-721
|
||
|
|
*/
|
||
|
|
interface IERC721Metadata is IERC721 {
|
||
|
|
/**
|
||
|
|
* @dev Returns the token collection name.
|
||
|
|
*/
|
||
|
|
function name() external view returns (string memory);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns the token collection symbol.
|
||
|
|
*/
|
||
|
|
function symbol() external view returns (string memory);
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
|
||
|
|
*/
|
||
|
|
function tokenURI(uint256 tokenId) external view returns (string memory);
|
||
|
|
}
|
||
|
|
|
||
|
|
// File: Contracts/babynft.sol
|
||
|
|
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
|
||
|
|
* the Metadata extension, but not including the Enumerable extension, which is available separately as
|
||
|
|
* {ERC721Enumerable}.
|
||
|
|
*/
|
||
|
|
interface erc20_{
|
||
|
|
|
||
|
|
function mint(address add, uint amount)external;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
contract babynft is Context, ERC165, IERC721, IERC721Metadata ,Ownable,IERC721Enumerable{
|
||
|
|
using Address for address;
|
||
|
|
using Strings for uint256;
|
||
|
|
using Counters for Counters.Counter;
|
||
|
|
|
||
|
|
Counters.Counter private _tokenIds;
|
||
|
|
|
||
|
|
uint counter;
|
||
|
|
uint _counter;
|
||
|
|
uint256 public maxSupply = 5555;
|
||
|
|
|
||
|
|
erc20_ _erc20;
|
||
|
|
|
||
|
|
|
||
|
|
string public baseURI_ = "ipfs://QmQKqVLvzoqH2CaVGqSf1UCghGSSV4X6FT3bMFTWN2C6cF/";
|
||
|
|
string public baseExtension = ".json";
|
||
|
|
|
||
|
|
|
||
|
|
// Token name
|
||
|
|
string private _name;
|
||
|
|
|
||
|
|
// Token symbol
|
||
|
|
string private _symbol;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// Mapping from token ID to owner address
|
||
|
|
mapping(uint256 => address) private _owners;
|
||
|
|
|
||
|
|
// Mapping owner address to token count
|
||
|
|
mapping(address => uint256) private _balances;
|
||
|
|
|
||
|
|
// Mapping from token ID to approved address
|
||
|
|
mapping(uint256 => address) private _tokenApprovals;
|
||
|
|
|
||
|
|
// Mapping from owner to operator approvals
|
||
|
|
mapping(address => mapping(address => bool)) private _operatorApprovals;
|
||
|
|
|
||
|
|
mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
|
||
|
|
|
||
|
|
// Mapping from token ID to index of the owner tokens list
|
||
|
|
mapping(uint256 => uint256) private _ownedTokensIndex;
|
||
|
|
|
||
|
|
// Array with all token ids, used for enumeration
|
||
|
|
uint256[] private _allTokens;
|
||
|
|
|
||
|
|
// Mapping from token id to position in the allTokens array
|
||
|
|
mapping(uint256 => uint256) private _allTokensIndex;
|
||
|
|
|
||
|
|
mapping(uint => mapping(address => uint)) private idtostartingtimet;
|
||
|
|
|
||
|
|
mapping (address =>bool) onlyapprovedcontractaddress;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
|
||
|
|
*/
|
||
|
|
constructor(string memory name_, string memory symbol_) {
|
||
|
|
_name = name_;
|
||
|
|
_symbol = symbol_;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
|
||
|
|
*/
|
||
|
|
function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
|
||
|
|
require(index < balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
|
||
|
|
return _ownedTokens[owner][index];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Enumerable-totalSupply}.
|
||
|
|
*/
|
||
|
|
function totalSupply() public view virtual override returns (uint256) {
|
||
|
|
return _allTokens.length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Enumerable-tokenByIndex}.
|
||
|
|
*/
|
||
|
|
function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
|
||
|
|
require(index < totalSupply(), "ERC721Enumerable: global index out of bounds");
|
||
|
|
return _allTokens[index];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _beforeTokenTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) internal virtual {
|
||
|
|
|
||
|
|
|
||
|
|
if (from == address(0)) {
|
||
|
|
_addTokenToAllTokensEnumeration(tokenId);
|
||
|
|
} else if (from != to) {
|
||
|
|
_removeTokenFromOwnerEnumeration(from, tokenId);
|
||
|
|
}
|
||
|
|
if (to == address(0)) {
|
||
|
|
_removeTokenFromAllTokensEnumeration(tokenId);
|
||
|
|
} else if (to != from) {
|
||
|
|
_addTokenToOwnerEnumeration(to, tokenId);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
|
||
|
|
uint256 length = babynft.balanceOf(to);
|
||
|
|
_ownedTokens[to][length] = tokenId;
|
||
|
|
_ownedTokensIndex[tokenId] = length;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
|
||
|
|
_allTokensIndex[tokenId] = _allTokens.length;
|
||
|
|
_allTokens.push(tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
|
||
|
|
// To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
|
||
|
|
// then delete the last slot (swap and pop).
|
||
|
|
|
||
|
|
uint256 lastTokenIndex = babynft.balanceOf(from) - 1;
|
||
|
|
uint256 tokenIndex = _ownedTokensIndex[tokenId];
|
||
|
|
|
||
|
|
// When the token to delete is the last token, the swap operation is unnecessary
|
||
|
|
if (tokenIndex != lastTokenIndex) {
|
||
|
|
uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
|
||
|
|
|
||
|
|
_ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
|
||
|
|
_ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
|
||
|
|
}
|
||
|
|
|
||
|
|
// This also deletes the contents at the last position of the array
|
||
|
|
delete _ownedTokensIndex[tokenId];
|
||
|
|
delete _ownedTokens[from][lastTokenIndex];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
|
||
|
|
// To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
|
||
|
|
// then delete the last slot (swap and pop).
|
||
|
|
|
||
|
|
uint256 lastTokenIndex = _allTokens.length - 1;
|
||
|
|
uint256 tokenIndex = _allTokensIndex[tokenId];
|
||
|
|
|
||
|
|
// When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
|
||
|
|
// rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
|
||
|
|
// an 'if' statement (like in _removeTokenFromOwnerEnumeration)
|
||
|
|
uint256 lastTokenId = _allTokens[lastTokenIndex];
|
||
|
|
|
||
|
|
_allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
|
||
|
|
_allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
|
||
|
|
|
||
|
|
// This also deletes the contents at the last position of the array
|
||
|
|
delete _allTokensIndex[tokenId];
|
||
|
|
_allTokens.pop();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC165-supportsInterface}.
|
||
|
|
*/
|
||
|
|
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
|
||
|
|
return
|
||
|
|
interfaceId == type(IERC721).interfaceId ||
|
||
|
|
interfaceId == type(IERC721Metadata).interfaceId ||
|
||
|
|
super.supportsInterface(interfaceId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-balanceOf}.
|
||
|
|
*/
|
||
|
|
function balanceOf(address owner) public view virtual override returns (uint256) {
|
||
|
|
require(owner != address(0), "ERC721: balance query for the zero address");
|
||
|
|
return _balances[owner];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-ownerOf}.
|
||
|
|
*/
|
||
|
|
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
|
||
|
|
address owner = _owners[tokenId];
|
||
|
|
require(owner != address(0), "ERC721: owner query for nonexistent token");
|
||
|
|
return owner;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Metadata-name}.
|
||
|
|
*/
|
||
|
|
function name() public view virtual override returns (string memory) {
|
||
|
|
return _name;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Metadata-symbol}.
|
||
|
|
*/
|
||
|
|
function symbol() public view virtual override returns (string memory) {
|
||
|
|
return _symbol;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Metadata-tokenURI}.
|
||
|
|
*/
|
||
|
|
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
|
||
|
|
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
|
||
|
|
|
||
|
|
string memory baseURI = _baseURI();
|
||
|
|
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
|
||
|
|
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
|
||
|
|
* by default, can be overriden in child contracts.
|
||
|
|
*/
|
||
|
|
function _baseURI() internal view virtual returns (string memory) {
|
||
|
|
return baseURI_;
|
||
|
|
}
|
||
|
|
|
||
|
|
function setapprovedcontractaddress(address add)external {
|
||
|
|
require(counter<1, "already called");
|
||
|
|
onlyapprovedcontractaddress[add] =true;
|
||
|
|
counter+=1;
|
||
|
|
}
|
||
|
|
|
||
|
|
function setmaxsupply(uint amount)public onlyOwner {
|
||
|
|
maxSupply= amount;
|
||
|
|
}
|
||
|
|
|
||
|
|
function mint(address _to) public {
|
||
|
|
require(onlyapprovedcontractaddress[msg.sender] ==true, "you are not approved to mint");
|
||
|
|
require( totalSupply() <= maxSupply);
|
||
|
|
if (_tokenIds.current()==0){
|
||
|
|
_tokenIds.increment();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
uint256 newTokenID = _tokenIds.current();
|
||
|
|
_safeMint(_to, newTokenID);
|
||
|
|
_tokenIds.increment();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function approve(address to, uint256 tokenId) public virtual override {
|
||
|
|
address owner = babynft.ownerOf(tokenId);
|
||
|
|
require(to != owner, "ERC721: approval to current owner");
|
||
|
|
|
||
|
|
require(
|
||
|
|
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
|
||
|
|
"ERC721: approve caller is not owner nor approved for all"
|
||
|
|
);
|
||
|
|
|
||
|
|
_approve(to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-getApproved}.
|
||
|
|
*/
|
||
|
|
|
||
|
|
function setBaseURI(string memory _newBaseURI) public onlyOwner {
|
||
|
|
baseURI_ = _newBaseURI;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function getApproved(uint256 tokenId) public view virtual override returns (address) {
|
||
|
|
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
|
||
|
|
|
||
|
|
return _tokenApprovals[tokenId];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-setApprovalForAll}.
|
||
|
|
*/
|
||
|
|
function setApprovalForAll(address operator, bool approved) public virtual override {
|
||
|
|
_setApprovalForAll(_msgSender(), operator, approved);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-isApprovedForAll}.
|
||
|
|
*/
|
||
|
|
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
|
||
|
|
return _operatorApprovals[owner][operator];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-transferFrom}.
|
||
|
|
*/
|
||
|
|
function transferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) public virtual override {
|
||
|
|
//solhint-disable-next-line max-line-length
|
||
|
|
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
|
||
|
|
|
||
|
|
_transfer(from, to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-safeTransferFrom}.
|
||
|
|
*/
|
||
|
|
function safeTransferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) public virtual override {
|
||
|
|
safeTransferFrom(from, to, tokenId, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-safeTransferFrom}.
|
||
|
|
*/
|
||
|
|
function safeTransferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) public virtual override {
|
||
|
|
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
|
||
|
|
_safeTransfer(from, to, tokenId, _data);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
|
||
|
|
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
|
||
|
|
*
|
||
|
|
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
|
||
|
|
*
|
||
|
|
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
|
||
|
|
* implement alternative mechanisms to perform token transfer, such as signature-based.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `from` cannot be the zero address.
|
||
|
|
* - `to` cannot be the zero address.
|
||
|
|
* - `tokenId` token must exist and be owned by `from`.
|
||
|
|
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _safeTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) internal virtual {
|
||
|
|
_transfer(from, to, tokenId);
|
||
|
|
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns whether `tokenId` exists.
|
||
|
|
*
|
||
|
|
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
|
||
|
|
*
|
||
|
|
* Tokens start existing when they are minted (`_mint`),
|
||
|
|
* and stop existing when they are burned (`_burn`).
|
||
|
|
*/
|
||
|
|
function _exists(uint256 tokenId) internal view virtual returns (bool) {
|
||
|
|
return _owners[tokenId] != address(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns whether `spender` is allowed to manage `tokenId`.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must exist.
|
||
|
|
*/
|
||
|
|
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
|
||
|
|
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
|
||
|
|
address owner = babynft.ownerOf(tokenId);
|
||
|
|
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Safely mints `tokenId` and transfers it to `to`.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must not exist.
|
||
|
|
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _safeMint(address to, uint256 tokenId) internal virtual {
|
||
|
|
_safeMint(to, tokenId, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
|
||
|
|
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
|
||
|
|
*/
|
||
|
|
function _safeMint(
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) internal virtual {
|
||
|
|
_mint(to, tokenId);
|
||
|
|
require(
|
||
|
|
_checkOnERC721Received(address(0), to, tokenId, _data),
|
||
|
|
"ERC721: transfer to non ERC721Receiver implementer"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Mints `tokenId` and transfers it to `to`.
|
||
|
|
*
|
||
|
|
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must not exist.
|
||
|
|
* - `to` cannot be the zero address.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _mint(address to, uint256 tokenId) internal virtual {
|
||
|
|
require(to != address(0), "ERC721: mint to the zero address");
|
||
|
|
require(!_exists(tokenId), "ERC721: token already minted");
|
||
|
|
|
||
|
|
_beforeTokenTransfer(address(0), to, tokenId);
|
||
|
|
|
||
|
|
_balances[to] += 1;
|
||
|
|
_owners[tokenId] = to;
|
||
|
|
idtostartingtimet[tokenId][to]=block.timestamp;
|
||
|
|
|
||
|
|
// totalSupply+=1;
|
||
|
|
|
||
|
|
emit Transfer(address(0), to, tokenId);
|
||
|
|
|
||
|
|
_afterTokenTransfer(address(0), to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
function seterc20address(address add)external {
|
||
|
|
require(_counter<1, "already called this function");
|
||
|
|
_erc20= erc20_(add);
|
||
|
|
_counter++;
|
||
|
|
}
|
||
|
|
|
||
|
|
function walletofNFT(address _owner)
|
||
|
|
public
|
||
|
|
view
|
||
|
|
returns (uint256[] memory)
|
||
|
|
{
|
||
|
|
uint256 ownerTokenCount = balanceOf(_owner);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
for (uint256 i; i < ownerTokenCount; i++) {
|
||
|
|
tokenIds[i] = tokenOfOwnerByIndex(_owner, i);
|
||
|
|
}
|
||
|
|
return tokenIds;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function checkrewardbal(address add)public view returns(uint){
|
||
|
|
|
||
|
|
uint256 ownerTokenCount = balanceOf(add);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
tokenIds= walletofNFT(add);
|
||
|
|
|
||
|
|
uint current;
|
||
|
|
uint reward;
|
||
|
|
uint rewardbal;
|
||
|
|
for (uint i ;i<ownerTokenCount; i++){
|
||
|
|
|
||
|
|
if (idtostartingtimet[tokenIds[i]][add]>0 ){
|
||
|
|
current = block.timestamp - idtostartingtimet[tokenIds[i]][add];
|
||
|
|
reward = ((5*10**18)*current)/86400;
|
||
|
|
rewardbal+=reward;
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return rewardbal;
|
||
|
|
}
|
||
|
|
|
||
|
|
function claimreward(address add) public {
|
||
|
|
require(balanceOf(add)>0, "not qualified for reward");
|
||
|
|
uint256 ownerTokenCount = balanceOf(add);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
tokenIds= walletofNFT(add);
|
||
|
|
|
||
|
|
uint current;
|
||
|
|
uint reward;
|
||
|
|
uint rewardbal;
|
||
|
|
for (uint i ;i<ownerTokenCount; i++){
|
||
|
|
|
||
|
|
if (idtostartingtimet[tokenIds[i]][add]>0 ){
|
||
|
|
current = block.timestamp - idtostartingtimet[tokenIds[i]][add];
|
||
|
|
reward = ((5*10**18)*current)/86400;
|
||
|
|
rewardbal+=reward;
|
||
|
|
idtostartingtimet[tokenIds[i]][add]=block.timestamp;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
_erc20.mint(add,rewardbal);
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Destroys `tokenId`.
|
||
|
|
* The approval is cleared when the token is burned.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must exist.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _burn(uint256 tokenId) internal virtual {
|
||
|
|
address owner = babynft.ownerOf(tokenId);
|
||
|
|
|
||
|
|
_beforeTokenTransfer(owner, address(0), tokenId);
|
||
|
|
|
||
|
|
// Clear approvals
|
||
|
|
_approve(address(0), tokenId);
|
||
|
|
|
||
|
|
_balances[owner] -= 1;
|
||
|
|
delete _owners[tokenId];
|
||
|
|
|
||
|
|
emit Transfer(owner, address(0), tokenId);
|
||
|
|
|
||
|
|
_afterTokenTransfer(owner, address(0), tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Transfers `tokenId` from `from` to `to`.
|
||
|
|
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `to` cannot be the zero address.
|
||
|
|
* - `tokenId` token must be owned by `from`.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _transfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) internal virtual {
|
||
|
|
require(babynft.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
|
||
|
|
require(to != address(0), "ERC721: transfer to the zero address");
|
||
|
|
|
||
|
|
_beforeTokenTransfer(from, to, tokenId);
|
||
|
|
|
||
|
|
// Clear approvals from the previous owner
|
||
|
|
_approve(address(0), tokenId);
|
||
|
|
|
||
|
|
_balances[from] -= 1;
|
||
|
|
_balances[to] += 1;
|
||
|
|
_owners[tokenId] = to;
|
||
|
|
idtostartingtimet[tokenId][to]=block.timestamp;
|
||
|
|
idtostartingtimet[tokenId][from]=0;
|
||
|
|
|
||
|
|
|
||
|
|
emit Transfer(from, to, tokenId);
|
||
|
|
|
||
|
|
_afterTokenTransfer(from, to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Approve `to` to operate on `tokenId`
|
||
|
|
*
|
||
|
|
* Emits a {Approval} event.
|
||
|
|
*/
|
||
|
|
function _approve(address to, uint256 tokenId) internal virtual {
|
||
|
|
_tokenApprovals[tokenId] = to;
|
||
|
|
emit Approval(babynft.ownerOf(tokenId), to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Approve `operator` to operate on all of `owner` tokens
|
||
|
|
*
|
||
|
|
* Emits a {ApprovalForAll} event.
|
||
|
|
*/
|
||
|
|
function _setApprovalForAll(
|
||
|
|
address owner,
|
||
|
|
address operator,
|
||
|
|
bool approved
|
||
|
|
) internal virtual {
|
||
|
|
require(owner != operator, "ERC721: approve to caller");
|
||
|
|
_operatorApprovals[owner][operator] = approved;
|
||
|
|
emit ApprovalForAll(owner, operator, approved);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
|
||
|
|
* The call is not executed if the target address is not a contract.
|
||
|
|
*
|
||
|
|
* @param from address representing the previous owner of the given token ID
|
||
|
|
* @param to target address that will receive the tokens
|
||
|
|
* @param tokenId uint256 ID of the token to be transferred
|
||
|
|
* @param _data bytes optional data to send along with the call
|
||
|
|
* @return bool whether the call correctly returned the expected magic value
|
||
|
|
*/
|
||
|
|
function _checkOnERC721Received(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) private returns (bool) {
|
||
|
|
if (to.isContract()) {
|
||
|
|
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
|
||
|
|
return retval == IERC721Receiver.onERC721Received.selector;
|
||
|
|
} catch (bytes memory reason) {
|
||
|
|
if (reason.length == 0) {
|
||
|
|
revert("ERC721: transfer to non ERC721Receiver implementer");
|
||
|
|
} else {
|
||
|
|
assembly {
|
||
|
|
revert(add(32, reason), mload(reason))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Hook that is called before any token transfer. This includes minting
|
||
|
|
* and burning.
|
||
|
|
*
|
||
|
|
* Calling conditions:
|
||
|
|
*
|
||
|
|
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
|
||
|
|
* transferred to `to`.
|
||
|
|
* - When `from` is zero, `tokenId` will be minted for `to`.
|
||
|
|
* - When `to` is zero, ``from``'s `tokenId` will be burned.
|
||
|
|
* - `from` and `to` are never both zero.
|
||
|
|
*
|
||
|
|
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
|
||
|
|
*/
|
||
|
|
// function _beforeTokenTransfer(
|
||
|
|
// address from,
|
||
|
|
// address to,
|
||
|
|
// uint256 tokenId
|
||
|
|
// ) internal virtual {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Hook that is called after any transfer of tokens. This includes
|
||
|
|
* minting and burning.
|
||
|
|
*
|
||
|
|
* Calling conditions:
|
||
|
|
*
|
||
|
|
* - when `from` and `to` are both non-zero.
|
||
|
|
* - `from` and `to` are never both zero.
|
||
|
|
*
|
||
|
|
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
|
||
|
|
*/
|
||
|
|
function _afterTokenTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) internal virtual {}
|
||
|
|
}
|
||
|
|
// File: Contracts/ancientnft.sol
|
||
|
|
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
|
||
|
|
* the Metadata extension, but not including the Enumerable extension, which is available separately as
|
||
|
|
* {ERC721Enumerable}.
|
||
|
|
*/
|
||
|
|
interface erc20{
|
||
|
|
|
||
|
|
function mint(address add, uint amount)external;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
contract ancientnft is Context, ERC165, IERC721, IERC721Metadata ,Ownable,IERC721Enumerable{
|
||
|
|
using Address for address;
|
||
|
|
using Strings for uint256;
|
||
|
|
using Counters for Counters.Counter;
|
||
|
|
|
||
|
|
Counters.Counter private _tokenIds;
|
||
|
|
|
||
|
|
uint counter;
|
||
|
|
uint _counter;
|
||
|
|
|
||
|
|
erc20 _erc20;
|
||
|
|
|
||
|
|
|
||
|
|
string public baseURI_ = "ipfs://QmYDwia8r68Mp3EWhmNtfVJA6FxYn52UMDNvkSaSUwtufU/";
|
||
|
|
string public baseExtension = ".json";
|
||
|
|
|
||
|
|
|
||
|
|
// Token name
|
||
|
|
string private _name;
|
||
|
|
|
||
|
|
// Token symbol
|
||
|
|
string private _symbol;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// Mapping from token ID to owner address
|
||
|
|
mapping(uint256 => address) private _owners;
|
||
|
|
|
||
|
|
// Mapping owner address to token count
|
||
|
|
mapping(address => uint256) private _balances;
|
||
|
|
|
||
|
|
// Mapping from token ID to approved address
|
||
|
|
mapping(uint256 => address) private _tokenApprovals;
|
||
|
|
|
||
|
|
// Mapping from owner to operator approvals
|
||
|
|
mapping(address => mapping(address => bool)) private _operatorApprovals;
|
||
|
|
|
||
|
|
mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
|
||
|
|
|
||
|
|
// Mapping from token ID to index of the owner tokens list
|
||
|
|
mapping(uint256 => uint256) private _ownedTokensIndex;
|
||
|
|
|
||
|
|
// Array with all token ids, used for enumeration
|
||
|
|
uint256[] private _allTokens;
|
||
|
|
|
||
|
|
// Mapping from token id to position in the allTokens array
|
||
|
|
mapping(uint256 => uint256) private _allTokensIndex;
|
||
|
|
|
||
|
|
mapping(uint => mapping(address => uint)) private idtostartingtimet;
|
||
|
|
|
||
|
|
mapping (address =>bool) onlyapprovedcontractaddress;
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
|
||
|
|
*/
|
||
|
|
constructor(string memory name_, string memory symbol_) {
|
||
|
|
_name = name_;
|
||
|
|
_symbol = symbol_;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
|
||
|
|
*/
|
||
|
|
function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
|
||
|
|
require(index < balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
|
||
|
|
return _ownedTokens[owner][index];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Enumerable-totalSupply}.
|
||
|
|
*/
|
||
|
|
function totalSupply() public view virtual override returns (uint256) {
|
||
|
|
return _allTokens.length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Enumerable-tokenByIndex}.
|
||
|
|
*/
|
||
|
|
function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
|
||
|
|
require(index < totalSupply(), "ERC721Enumerable: global index out of bounds");
|
||
|
|
return _allTokens[index];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _beforeTokenTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) internal virtual {
|
||
|
|
|
||
|
|
|
||
|
|
if (from == address(0)) {
|
||
|
|
_addTokenToAllTokensEnumeration(tokenId);
|
||
|
|
} else if (from != to) {
|
||
|
|
_removeTokenFromOwnerEnumeration(from, tokenId);
|
||
|
|
}
|
||
|
|
if (to == address(0)) {
|
||
|
|
_removeTokenFromAllTokensEnumeration(tokenId);
|
||
|
|
} else if (to != from) {
|
||
|
|
_addTokenToOwnerEnumeration(to, tokenId);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
|
||
|
|
uint256 length = ancientnft.balanceOf(to);
|
||
|
|
_ownedTokens[to][length] = tokenId;
|
||
|
|
_ownedTokensIndex[tokenId] = length;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
|
||
|
|
_allTokensIndex[tokenId] = _allTokens.length;
|
||
|
|
_allTokens.push(tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
|
||
|
|
// To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
|
||
|
|
// then delete the last slot (swap and pop).
|
||
|
|
|
||
|
|
uint256 lastTokenIndex = ancientnft.balanceOf(from) - 1;
|
||
|
|
uint256 tokenIndex = _ownedTokensIndex[tokenId];
|
||
|
|
|
||
|
|
// When the token to delete is the last token, the swap operation is unnecessary
|
||
|
|
if (tokenIndex != lastTokenIndex) {
|
||
|
|
uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
|
||
|
|
|
||
|
|
_ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
|
||
|
|
_ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
|
||
|
|
}
|
||
|
|
|
||
|
|
// This also deletes the contents at the last position of the array
|
||
|
|
delete _ownedTokensIndex[tokenId];
|
||
|
|
delete _ownedTokens[from][lastTokenIndex];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
|
||
|
|
// To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
|
||
|
|
// then delete the last slot (swap and pop).
|
||
|
|
|
||
|
|
uint256 lastTokenIndex = _allTokens.length - 1;
|
||
|
|
uint256 tokenIndex = _allTokensIndex[tokenId];
|
||
|
|
|
||
|
|
// When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
|
||
|
|
// rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
|
||
|
|
// an 'if' statement (like in _removeTokenFromOwnerEnumeration)
|
||
|
|
uint256 lastTokenId = _allTokens[lastTokenIndex];
|
||
|
|
|
||
|
|
_allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
|
||
|
|
_allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
|
||
|
|
|
||
|
|
// This also deletes the contents at the last position of the array
|
||
|
|
delete _allTokensIndex[tokenId];
|
||
|
|
_allTokens.pop();
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC165-supportsInterface}.
|
||
|
|
*/
|
||
|
|
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
|
||
|
|
return
|
||
|
|
interfaceId == type(IERC721).interfaceId ||
|
||
|
|
interfaceId == type(IERC721Metadata).interfaceId ||
|
||
|
|
super.supportsInterface(interfaceId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-balanceOf}.
|
||
|
|
*/
|
||
|
|
function balanceOf(address owner) public view virtual override returns (uint256) {
|
||
|
|
require(owner != address(0), "ERC721: balance query for the zero address");
|
||
|
|
return _balances[owner];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-ownerOf}.
|
||
|
|
*/
|
||
|
|
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
|
||
|
|
address owner = _owners[tokenId];
|
||
|
|
require(owner != address(0), "ERC721: owner query for nonexistent token");
|
||
|
|
return owner;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Metadata-name}.
|
||
|
|
*/
|
||
|
|
function name() public view virtual override returns (string memory) {
|
||
|
|
return _name;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Metadata-symbol}.
|
||
|
|
*/
|
||
|
|
function symbol() public view virtual override returns (string memory) {
|
||
|
|
return _symbol;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Metadata-tokenURI}.
|
||
|
|
*/
|
||
|
|
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
|
||
|
|
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
|
||
|
|
|
||
|
|
string memory baseURI = _baseURI();
|
||
|
|
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
|
||
|
|
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
|
||
|
|
* by default, can be overriden in child contracts.
|
||
|
|
*/
|
||
|
|
function _baseURI() internal view virtual returns (string memory) {
|
||
|
|
return baseURI_;
|
||
|
|
}
|
||
|
|
|
||
|
|
function setapprovedcontractaddress(address add)external {
|
||
|
|
require(counter<1, "already called");
|
||
|
|
onlyapprovedcontractaddress[add] =true;
|
||
|
|
counter+=1;
|
||
|
|
}
|
||
|
|
|
||
|
|
function mint(address _to) public {
|
||
|
|
require(onlyapprovedcontractaddress[msg.sender] ==true, "you are not approved to mint");
|
||
|
|
if (_tokenIds.current()==0){
|
||
|
|
_tokenIds.increment();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
uint256 newTokenID = _tokenIds.current();
|
||
|
|
_safeMint(_to, newTokenID);
|
||
|
|
_tokenIds.increment();
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function approve(address to, uint256 tokenId) public virtual override {
|
||
|
|
address owner = ancientnft.ownerOf(tokenId);
|
||
|
|
require(to != owner, "ERC721: approval to current owner");
|
||
|
|
|
||
|
|
require(
|
||
|
|
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
|
||
|
|
"ERC721: approve caller is not owner nor approved for all"
|
||
|
|
);
|
||
|
|
|
||
|
|
_approve(to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-getApproved}.
|
||
|
|
*/
|
||
|
|
|
||
|
|
function setBaseURI(string memory _newBaseURI) public onlyOwner {
|
||
|
|
baseURI_ = _newBaseURI;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function getApproved(uint256 tokenId) public view virtual override returns (address) {
|
||
|
|
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
|
||
|
|
|
||
|
|
return _tokenApprovals[tokenId];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-setApprovalForAll}.
|
||
|
|
*/
|
||
|
|
function setApprovalForAll(address operator, bool approved) public virtual override {
|
||
|
|
_setApprovalForAll(_msgSender(), operator, approved);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-isApprovedForAll}.
|
||
|
|
*/
|
||
|
|
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
|
||
|
|
return _operatorApprovals[owner][operator];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-transferFrom}.
|
||
|
|
*/
|
||
|
|
function transferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) public virtual override {
|
||
|
|
//solhint-disable-next-line max-line-length
|
||
|
|
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
|
||
|
|
|
||
|
|
_transfer(from, to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-safeTransferFrom}.
|
||
|
|
*/
|
||
|
|
function safeTransferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) public virtual override {
|
||
|
|
safeTransferFrom(from, to, tokenId, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721-safeTransferFrom}.
|
||
|
|
*/
|
||
|
|
function safeTransferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) public virtual override {
|
||
|
|
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
|
||
|
|
_safeTransfer(from, to, tokenId, _data);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
|
||
|
|
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
|
||
|
|
*
|
||
|
|
* `_data` is additional data, it has no specified format and it is sent in call to `to`.
|
||
|
|
*
|
||
|
|
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
|
||
|
|
* implement alternative mechanisms to perform token transfer, such as signature-based.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `from` cannot be the zero address.
|
||
|
|
* - `to` cannot be the zero address.
|
||
|
|
* - `tokenId` token must exist and be owned by `from`.
|
||
|
|
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _safeTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) internal virtual {
|
||
|
|
_transfer(from, to, tokenId);
|
||
|
|
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns whether `tokenId` exists.
|
||
|
|
*
|
||
|
|
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
|
||
|
|
*
|
||
|
|
* Tokens start existing when they are minted (`_mint`),
|
||
|
|
* and stop existing when they are burned (`_burn`).
|
||
|
|
*/
|
||
|
|
function _exists(uint256 tokenId) internal view virtual returns (bool) {
|
||
|
|
return _owners[tokenId] != address(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Returns whether `spender` is allowed to manage `tokenId`.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must exist.
|
||
|
|
*/
|
||
|
|
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
|
||
|
|
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
|
||
|
|
address owner = ancientnft.ownerOf(tokenId);
|
||
|
|
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Safely mints `tokenId` and transfers it to `to`.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must not exist.
|
||
|
|
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _safeMint(address to, uint256 tokenId) internal virtual {
|
||
|
|
_safeMint(to, tokenId, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
|
||
|
|
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
|
||
|
|
*/
|
||
|
|
function _safeMint(
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) internal virtual {
|
||
|
|
_mint(to, tokenId);
|
||
|
|
require(
|
||
|
|
_checkOnERC721Received(address(0), to, tokenId, _data),
|
||
|
|
"ERC721: transfer to non ERC721Receiver implementer"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Mints `tokenId` and transfers it to `to`.
|
||
|
|
*
|
||
|
|
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must not exist.
|
||
|
|
* - `to` cannot be the zero address.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _mint(address to, uint256 tokenId) internal virtual {
|
||
|
|
require(to != address(0), "ERC721: mint to the zero address");
|
||
|
|
require(!_exists(tokenId), "ERC721: token already minted");
|
||
|
|
|
||
|
|
_beforeTokenTransfer(address(0), to, tokenId);
|
||
|
|
|
||
|
|
_balances[to] += 1;
|
||
|
|
_owners[tokenId] = to;
|
||
|
|
idtostartingtimet[tokenId][to]=block.timestamp;
|
||
|
|
|
||
|
|
// totalSupply+=1;
|
||
|
|
|
||
|
|
emit Transfer(address(0), to, tokenId);
|
||
|
|
|
||
|
|
_afterTokenTransfer(address(0), to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
function seterc20address(address add)external {
|
||
|
|
require(_counter<1, "already called this function");
|
||
|
|
_erc20= erc20(add);
|
||
|
|
_counter++;
|
||
|
|
}
|
||
|
|
|
||
|
|
function walletofNFT(address _owner)
|
||
|
|
public
|
||
|
|
view
|
||
|
|
returns (uint256[] memory)
|
||
|
|
{
|
||
|
|
uint256 ownerTokenCount = balanceOf(_owner);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
for (uint256 i; i < ownerTokenCount; i++) {
|
||
|
|
tokenIds[i] = tokenOfOwnerByIndex(_owner, i);
|
||
|
|
}
|
||
|
|
return tokenIds;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function checkrewardbal(address add)public view returns(uint){
|
||
|
|
|
||
|
|
uint256 ownerTokenCount = balanceOf(add);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
tokenIds= walletofNFT(add);
|
||
|
|
|
||
|
|
uint current;
|
||
|
|
uint reward;
|
||
|
|
uint rewardbal;
|
||
|
|
for (uint i ;i<ownerTokenCount; i++){
|
||
|
|
|
||
|
|
if (idtostartingtimet[tokenIds[i]][add]>0 ){
|
||
|
|
current = block.timestamp - idtostartingtimet[tokenIds[i]][add];
|
||
|
|
reward = ((50*10**18)*current)/86400;
|
||
|
|
rewardbal+=reward;
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return rewardbal;
|
||
|
|
}
|
||
|
|
|
||
|
|
function claimreward(address add) public {
|
||
|
|
require(balanceOf(add)>0, "not qualified for reward");
|
||
|
|
uint256 ownerTokenCount = balanceOf(add);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
tokenIds= walletofNFT(add);
|
||
|
|
|
||
|
|
uint current;
|
||
|
|
uint reward;
|
||
|
|
uint rewardbal;
|
||
|
|
for (uint i ;i<ownerTokenCount; i++){
|
||
|
|
|
||
|
|
if (idtostartingtimet[tokenIds[i]][add]>0 ){
|
||
|
|
current = block.timestamp - idtostartingtimet[tokenIds[i]][add];
|
||
|
|
reward = ((50*10**18)*current)/86400;
|
||
|
|
rewardbal+=reward;
|
||
|
|
idtostartingtimet[tokenIds[i]][add]=block.timestamp;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
_erc20.mint(add,rewardbal);
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Destroys `tokenId`.
|
||
|
|
* The approval is cleared when the token is burned.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `tokenId` must exist.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _burn(uint256 tokenId) internal virtual {
|
||
|
|
address owner = ancientnft.ownerOf(tokenId);
|
||
|
|
|
||
|
|
_beforeTokenTransfer(owner, address(0), tokenId);
|
||
|
|
|
||
|
|
// Clear approvals
|
||
|
|
_approve(address(0), tokenId);
|
||
|
|
|
||
|
|
_balances[owner] -= 1;
|
||
|
|
delete _owners[tokenId];
|
||
|
|
|
||
|
|
emit Transfer(owner, address(0), tokenId);
|
||
|
|
|
||
|
|
_afterTokenTransfer(owner, address(0), tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Transfers `tokenId` from `from` to `to`.
|
||
|
|
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
|
||
|
|
*
|
||
|
|
* Requirements:
|
||
|
|
*
|
||
|
|
* - `to` cannot be the zero address.
|
||
|
|
* - `tokenId` token must be owned by `from`.
|
||
|
|
*
|
||
|
|
* Emits a {Transfer} event.
|
||
|
|
*/
|
||
|
|
function _transfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) internal virtual {
|
||
|
|
require(ancientnft.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
|
||
|
|
require(to != address(0), "ERC721: transfer to the zero address");
|
||
|
|
|
||
|
|
_beforeTokenTransfer(from, to, tokenId);
|
||
|
|
|
||
|
|
// Clear approvals from the previous owner
|
||
|
|
_approve(address(0), tokenId);
|
||
|
|
|
||
|
|
_balances[from] -= 1;
|
||
|
|
_balances[to] += 1;
|
||
|
|
_owners[tokenId] = to;
|
||
|
|
idtostartingtimet[tokenId][to]=block.timestamp;
|
||
|
|
idtostartingtimet[tokenId][from]=0;
|
||
|
|
|
||
|
|
|
||
|
|
emit Transfer(from, to, tokenId);
|
||
|
|
|
||
|
|
_afterTokenTransfer(from, to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Approve `to` to operate on `tokenId`
|
||
|
|
*
|
||
|
|
* Emits a {Approval} event.
|
||
|
|
*/
|
||
|
|
function _approve(address to, uint256 tokenId) internal virtual {
|
||
|
|
_tokenApprovals[tokenId] = to;
|
||
|
|
emit Approval(ancientnft.ownerOf(tokenId), to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Approve `operator` to operate on all of `owner` tokens
|
||
|
|
*
|
||
|
|
* Emits a {ApprovalForAll} event.
|
||
|
|
*/
|
||
|
|
function _setApprovalForAll(
|
||
|
|
address owner,
|
||
|
|
address operator,
|
||
|
|
bool approved
|
||
|
|
) internal virtual {
|
||
|
|
require(owner != operator, "ERC721: approve to caller");
|
||
|
|
_operatorApprovals[owner][operator] = approved;
|
||
|
|
emit ApprovalForAll(owner, operator, approved);
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
|
||
|
|
* The call is not executed if the target address is not a contract.
|
||
|
|
*
|
||
|
|
* @param from address representing the previous owner of the given token ID
|
||
|
|
* @param to target address that will receive the tokens
|
||
|
|
* @param tokenId uint256 ID of the token to be transferred
|
||
|
|
* @param _data bytes optional data to send along with the call
|
||
|
|
* @return bool whether the call correctly returned the expected magic value
|
||
|
|
*/
|
||
|
|
function _checkOnERC721Received(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) private returns (bool) {
|
||
|
|
if (to.isContract()) {
|
||
|
|
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
|
||
|
|
return retval == IERC721Receiver.onERC721Received.selector;
|
||
|
|
} catch (bytes memory reason) {
|
||
|
|
if (reason.length == 0) {
|
||
|
|
revert("ERC721: transfer to non ERC721Receiver implementer");
|
||
|
|
} else {
|
||
|
|
assembly {
|
||
|
|
revert(add(32, reason), mload(reason))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Hook that is called before any token transfer. This includes minting
|
||
|
|
* and burning.
|
||
|
|
*
|
||
|
|
* Calling conditions:
|
||
|
|
*
|
||
|
|
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
|
||
|
|
* transferred to `to`.
|
||
|
|
* - When `from` is zero, `tokenId` will be minted for `to`.
|
||
|
|
* - When `to` is zero, ``from``'s `tokenId` will be burned.
|
||
|
|
* - `from` and `to` are never both zero.
|
||
|
|
*
|
||
|
|
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
|
||
|
|
*/
|
||
|
|
// function _beforeTokenTransfer(
|
||
|
|
// address from,
|
||
|
|
// address to,
|
||
|
|
// uint256 tokenId
|
||
|
|
// ) internal virtual {}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev Hook that is called after any transfer of tokens. This includes
|
||
|
|
* minting and burning.
|
||
|
|
*
|
||
|
|
* Calling conditions:
|
||
|
|
*
|
||
|
|
* - when `from` and `to` are both non-zero.
|
||
|
|
* - `from` and `to` are never both zero.
|
||
|
|
*
|
||
|
|
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
|
||
|
|
*/
|
||
|
|
function _afterTokenTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) internal virtual {}
|
||
|
|
}
|
||
|
|
// File: Contracts/nft.sol
|
||
|
|
|
||
|
|
|
||
|
|
// OpenZeppelin Contracts v4.4.1 (token/ERC721/ERC721.sol)
|
||
|
|
|
||
|
|
pragma solidity ^0.8.0;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
contract ERC721 is Context, ERC165, IERC721, IERC721Metadata, Ownable, IERC721Enumerable {
|
||
|
|
using Address for address;
|
||
|
|
using Strings for uint256;
|
||
|
|
using Counters for Counters.Counter;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// Token name
|
||
|
|
string private _name;
|
||
|
|
|
||
|
|
// Token symbol
|
||
|
|
string private _symbol;
|
||
|
|
|
||
|
|
// uint public totalSupply;
|
||
|
|
|
||
|
|
Counters.Counter private _tokenIds;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
string public baseURI_ = "ipfs://QmeWdrqHA32zQRjU9oKmsi6NDGdv1dpnyxRi3pcm27Dkqb/";
|
||
|
|
string public baseExtension = ".json";
|
||
|
|
uint256 public cost = 0.03 ether;
|
||
|
|
uint256 public maxSupply = 3333;
|
||
|
|
uint256 public maxMintAmount = 10;
|
||
|
|
bool public paused = false;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// wallet addresses for claims
|
||
|
|
address private constant possumchsr69 = 0x31FbcD30AA07FBbeA5DB938cD534D1dA79E34985;
|
||
|
|
address private constant Jazzasaurus =
|
||
|
|
0xd848353706E5a26BAa6DD20265EDDe1e7047d9ba;
|
||
|
|
address private constant munheezy = 0xB6D2ac64BDc24f76417b95b410ACf47cE31AdD07;
|
||
|
|
address private constant _community =
|
||
|
|
0xe44CB360e48dA69fe75a78fD1649ccbd3CCf7AD1;
|
||
|
|
|
||
|
|
mapping(uint => mapping(address => uint)) private idtostartingtimet;
|
||
|
|
|
||
|
|
|
||
|
|
mapping(address => mapping(uint256 => uint256)) private _ownedTokens;
|
||
|
|
|
||
|
|
// Mapping from token ID to index of the owner tokens list
|
||
|
|
mapping(uint256 => uint256) private _ownedTokensIndex;
|
||
|
|
|
||
|
|
// Array with all token ids, used for enumeration
|
||
|
|
uint256[] private _allTokens;
|
||
|
|
|
||
|
|
// Mapping from token id to position in the allTokens array
|
||
|
|
mapping(uint256 => uint256) private _allTokensIndex;
|
||
|
|
|
||
|
|
mapping(address => mapping(uint256 => bool)) private _breeded;
|
||
|
|
|
||
|
|
ERC20 _ERC20;
|
||
|
|
ancientnft _ancientnft;
|
||
|
|
babynft _babynft;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// Mapping from token ID to owner address
|
||
|
|
mapping(uint256 => address) private _owners;
|
||
|
|
|
||
|
|
// Mapping owner address to token count
|
||
|
|
mapping(address => uint256) private _balances;
|
||
|
|
|
||
|
|
// Mapping from token ID to approved address
|
||
|
|
mapping(uint256 => address) private _tokenApprovals;
|
||
|
|
|
||
|
|
// Mapping from owner to operator approvals
|
||
|
|
mapping(address => mapping(address => bool)) private _operatorApprovals;
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
constructor(string memory name_, string memory symbol_,string memory ERC20name_, string memory ERC20symbol_ ,uint ERC20amount,address ERC20owneraddress,string memory ancientnftname_, string memory ancientnftsymbol_,string memory babynftname_, string memory babynftsymbol_) {
|
||
|
|
_name = name_;
|
||
|
|
_symbol = symbol_;
|
||
|
|
mint(msg.sender, 10);
|
||
|
|
_ERC20= new ERC20(ERC20name_,ERC20symbol_,ERC20amount,ERC20owneraddress) ;
|
||
|
|
|
||
|
|
_ancientnft = new ancientnft(ancientnftname_,ancientnftsymbol_);
|
||
|
|
_ancientnft.setapprovedcontractaddress(address(this));
|
||
|
|
_ancientnft.seterc20address(address(_ERC20));
|
||
|
|
_babynft= new babynft(babynftname_,babynftsymbol_);
|
||
|
|
_babynft.setapprovedcontractaddress(address(this));
|
||
|
|
_babynft.seterc20address(address(_ERC20));
|
||
|
|
_ERC20.setapprovedcontractaddress(address(this),address(_ancientnft),address(_babynft));
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Enumerable-tokenOfOwnerByIndex}.
|
||
|
|
*/
|
||
|
|
function tokenOfOwnerByIndex(address owner, uint256 index) public view virtual override returns (uint256) {
|
||
|
|
require(index < balanceOf(owner), "ERC721Enumerable: owner index out of bounds");
|
||
|
|
return _ownedTokens[owner][index];
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Enumerable-totalSupply}.
|
||
|
|
*/
|
||
|
|
function totalSupply() public view virtual override returns (uint256) {
|
||
|
|
return _allTokens.length;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Enumerable-tokenByIndex}.
|
||
|
|
*/
|
||
|
|
function tokenByIndex(uint256 index) public view virtual override returns (uint256) {
|
||
|
|
require(index < totalSupply(), "ERC721Enumerable: global index out of bounds");
|
||
|
|
return _allTokens[index];
|
||
|
|
}
|
||
|
|
|
||
|
|
function pause() public onlyOwner {
|
||
|
|
paused = !paused;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function checkPause() public view onlyOwner returns(bool) {
|
||
|
|
return paused;
|
||
|
|
}
|
||
|
|
|
||
|
|
function _beforeTokenTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) internal virtual {
|
||
|
|
|
||
|
|
|
||
|
|
if (from == address(0)) {
|
||
|
|
_addTokenToAllTokensEnumeration(tokenId);
|
||
|
|
} else if (from != to) {
|
||
|
|
_removeTokenFromOwnerEnumeration(from, tokenId);
|
||
|
|
}
|
||
|
|
if (to == address(0)) {
|
||
|
|
_removeTokenFromAllTokensEnumeration(tokenId);
|
||
|
|
} else if (to != from) {
|
||
|
|
_addTokenToOwnerEnumeration(to, tokenId);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _addTokenToOwnerEnumeration(address to, uint256 tokenId) private {
|
||
|
|
uint256 length = ERC721.balanceOf(to);
|
||
|
|
_ownedTokens[to][length] = tokenId;
|
||
|
|
_ownedTokensIndex[tokenId] = length;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _addTokenToAllTokensEnumeration(uint256 tokenId) private {
|
||
|
|
_allTokensIndex[tokenId] = _allTokens.length;
|
||
|
|
_allTokens.push(tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _removeTokenFromOwnerEnumeration(address from, uint256 tokenId) private {
|
||
|
|
// To prevent a gap in from's tokens array, we store the last token in the index of the token to delete, and
|
||
|
|
// then delete the last slot (swap and pop).
|
||
|
|
|
||
|
|
uint256 lastTokenIndex = ERC721.balanceOf(from) - 1;
|
||
|
|
uint256 tokenIndex = _ownedTokensIndex[tokenId];
|
||
|
|
|
||
|
|
// When the token to delete is the last token, the swap operation is unnecessary
|
||
|
|
if (tokenIndex != lastTokenIndex) {
|
||
|
|
uint256 lastTokenId = _ownedTokens[from][lastTokenIndex];
|
||
|
|
|
||
|
|
_ownedTokens[from][tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
|
||
|
|
_ownedTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
|
||
|
|
}
|
||
|
|
|
||
|
|
// This also deletes the contents at the last position of the array
|
||
|
|
delete _ownedTokensIndex[tokenId];
|
||
|
|
delete _ownedTokens[from][lastTokenIndex];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _removeTokenFromAllTokensEnumeration(uint256 tokenId) private {
|
||
|
|
// To prevent a gap in the tokens array, we store the last token in the index of the token to delete, and
|
||
|
|
// then delete the last slot (swap and pop).
|
||
|
|
|
||
|
|
uint256 lastTokenIndex = _allTokens.length - 1;
|
||
|
|
uint256 tokenIndex = _allTokensIndex[tokenId];
|
||
|
|
|
||
|
|
// When the token to delete is the last token, the swap operation is unnecessary. However, since this occurs so
|
||
|
|
// rarely (when the last minted token is burnt) that we still do the swap here to avoid the gas cost of adding
|
||
|
|
// an 'if' statement (like in _removeTokenFromOwnerEnumeration)
|
||
|
|
uint256 lastTokenId = _allTokens[lastTokenIndex];
|
||
|
|
|
||
|
|
_allTokens[tokenIndex] = lastTokenId; // Move the last token to the slot of the to-delete token
|
||
|
|
_allTokensIndex[lastTokenId] = tokenIndex; // Update the moved token's index
|
||
|
|
|
||
|
|
// This also deletes the contents at the last position of the array
|
||
|
|
delete _allTokensIndex[tokenId];
|
||
|
|
_allTokens.pop();
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
|
||
|
|
return
|
||
|
|
interfaceId == type(IERC721).interfaceId ||
|
||
|
|
interfaceId == type(IERC721Metadata).interfaceId ||
|
||
|
|
super.supportsInterface(interfaceId);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function balanceOf(address owner) public view virtual override returns (uint256) {
|
||
|
|
require(owner != address(0), "ERC721: balance query for the zero address");
|
||
|
|
return _balances[owner];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
|
||
|
|
address owner = _owners[tokenId];
|
||
|
|
require(owner != address(0), "ERC721: owner query for nonexistent token");
|
||
|
|
return owner;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function name() public view virtual override returns (string memory) {
|
||
|
|
return _name;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function symbol() public view virtual override returns (string memory) {
|
||
|
|
return _symbol;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @dev See {IERC721Metadata-tokenURI}.
|
||
|
|
*/
|
||
|
|
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
|
||
|
|
require(_exists(tokenId), "ERC721Metadata: URI query for nonexistent token");
|
||
|
|
|
||
|
|
string memory baseURI = _baseURI();
|
||
|
|
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _baseURI() internal view virtual returns (string memory) {
|
||
|
|
return baseURI_;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function approve(address to, uint256 tokenId) public virtual override {
|
||
|
|
address owner = ERC721.ownerOf(tokenId);
|
||
|
|
require(to != owner, "ERC721: approval to current owner");
|
||
|
|
|
||
|
|
require(
|
||
|
|
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
|
||
|
|
"ERC721: approve caller is not owner nor approved for all"
|
||
|
|
);
|
||
|
|
|
||
|
|
_approve(to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function getApproved(uint256 tokenId) public view virtual override returns (address) {
|
||
|
|
require(_exists(tokenId), "ERC721: approved query for nonexistent token");
|
||
|
|
|
||
|
|
return _tokenApprovals[tokenId];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function setApprovalForAll(address operator, bool approved) public virtual override {
|
||
|
|
_setApprovalForAll(_msgSender(), operator, approved);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
|
||
|
|
return _operatorApprovals[owner][operator];
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function transferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) public virtual override {
|
||
|
|
//solhint-disable-next-line max-line-length
|
||
|
|
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
|
||
|
|
|
||
|
|
_transfer(from, to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function safeTransferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) public virtual override {
|
||
|
|
safeTransferFrom(from, to, tokenId, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
function safeTransferFrom(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) public virtual override {
|
||
|
|
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: transfer caller is not owner nor approved");
|
||
|
|
_safeTransfer(from, to, tokenId, _data);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _safeTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) internal virtual {
|
||
|
|
_transfer(from, to, tokenId);
|
||
|
|
require(_checkOnERC721Received(from, to, tokenId, _data), "ERC721: transfer to non ERC721Receiver implementer");
|
||
|
|
}
|
||
|
|
|
||
|
|
function _exists(uint256 tokenId) internal view virtual returns (bool) {
|
||
|
|
return _owners[tokenId] != address(0);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
|
||
|
|
require(_exists(tokenId), "ERC721: operator query for nonexistent token");
|
||
|
|
address owner = ERC721.ownerOf(tokenId);
|
||
|
|
return (spender == owner || getApproved(tokenId) == spender || isApprovedForAll(owner, spender));
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _safeMint(address to, uint256 tokenId) internal virtual {
|
||
|
|
_safeMint(to, tokenId, "");
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _safeMint(
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) internal virtual {
|
||
|
|
_mint(to, tokenId);
|
||
|
|
require(
|
||
|
|
_checkOnERC721Received(address(0), to, tokenId, _data),
|
||
|
|
"ERC721: transfer to non ERC721Receiver implementer"
|
||
|
|
);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _mint(address to, uint256 tokenId) internal virtual {
|
||
|
|
require(to != address(0), "ERC721: mint to the zero address");
|
||
|
|
require(!_exists(tokenId), "ERC721: token already minted");
|
||
|
|
|
||
|
|
_beforeTokenTransfer(address(0), to, tokenId);
|
||
|
|
|
||
|
|
_balances[to] += 1;
|
||
|
|
_owners[tokenId] = to;
|
||
|
|
idtostartingtimet[tokenId][to]=block.timestamp;
|
||
|
|
|
||
|
|
// totalSupply+=1;
|
||
|
|
|
||
|
|
emit Transfer(address(0), to, tokenId);
|
||
|
|
|
||
|
|
_afterTokenTransfer(address(0), to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function _burn(uint256 tokenId) internal virtual {
|
||
|
|
address owner = ERC721.ownerOf(tokenId);
|
||
|
|
|
||
|
|
_beforeTokenTransfer(owner, address(0), tokenId);
|
||
|
|
|
||
|
|
// Clear approvals
|
||
|
|
_approve(address(0), tokenId);
|
||
|
|
|
||
|
|
_balances[owner] -= 1;
|
||
|
|
delete _owners[tokenId];
|
||
|
|
|
||
|
|
|
||
|
|
// totalSupply-=1;
|
||
|
|
|
||
|
|
emit Transfer(owner, address(0), tokenId);
|
||
|
|
|
||
|
|
_afterTokenTransfer(owner, address(0), tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
function mint(
|
||
|
|
address _to,
|
||
|
|
uint256 _mintAmount
|
||
|
|
|
||
|
|
) public payable {
|
||
|
|
// get total NFT token supply
|
||
|
|
|
||
|
|
require(_mintAmount > 0);
|
||
|
|
require(_mintAmount <= maxMintAmount);
|
||
|
|
require( totalSupply() + _mintAmount <= maxSupply);
|
||
|
|
require(paused == false);
|
||
|
|
|
||
|
|
// minting is free for first 200 request after which payment is required
|
||
|
|
if ( totalSupply() >= 200) {
|
||
|
|
require(msg.value >= cost * _mintAmount);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
// execute mint
|
||
|
|
if (_tokenIds.current()==0){
|
||
|
|
_tokenIds.increment();
|
||
|
|
}
|
||
|
|
|
||
|
|
for (uint256 i = 1; i <= _mintAmount; i++) {
|
||
|
|
uint256 newTokenID = _tokenIds.current();
|
||
|
|
_safeMint(_to, newTokenID);
|
||
|
|
_tokenIds.increment();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
function checkdragonnotbreeded(address add)public view returns(uint[] memory){
|
||
|
|
|
||
|
|
uint256 ownerTokenCount = balanceOf(add);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
tokenIds= walletofNFT(add);
|
||
|
|
|
||
|
|
|
||
|
|
uint count;
|
||
|
|
for (uint i ;i<ownerTokenCount; i++){
|
||
|
|
if (_breeded[address(this)][tokenIds[i]]==false){
|
||
|
|
count++;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
uint256[] memory notbreededbrtokenIds = new uint256[](count);
|
||
|
|
uint _count;
|
||
|
|
for (uint i ;i<ownerTokenCount; i++){
|
||
|
|
if (_breeded[address(this)][tokenIds[i]]==false){
|
||
|
|
notbreededbrtokenIds[_count]=tokenIds[i];
|
||
|
|
_count++;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
return notbreededbrtokenIds;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function breed(uint id1,uint id2) public {
|
||
|
|
uint amount=1800*10**18;
|
||
|
|
require(balanceOf(msg.sender)>=2, "Must Own 2 0xDragons");
|
||
|
|
require (_ERC20.balanceOf(msg.sender) >= amount,"You Dont Have The $SCALE For That!");
|
||
|
|
require (ownerOf(id1)==msg.sender,"NOT YOUR DRAGON");
|
||
|
|
require (ownerOf(id2)==msg.sender,"NOT YOUR DRAGON");
|
||
|
|
_ERC20.burn(msg.sender, amount);
|
||
|
|
|
||
|
|
|
||
|
|
_breeded[address(this)][id1]=true;
|
||
|
|
_breeded[address(this)][id2]=true;
|
||
|
|
|
||
|
|
|
||
|
|
_babynft.mint(msg.sender);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function burn(uint id1, uint id2, uint id3 ) public {
|
||
|
|
uint amount=1500*10**18;
|
||
|
|
require(balanceOf(msg.sender)>=3, "Must Have 3 UNBRED Dragons");
|
||
|
|
require (_ERC20.balanceOf(msg.sender) >= amount,"You Dont Have The $SCALE For That!");
|
||
|
|
require (ownerOf(id1)==msg.sender,"NOT YOUR DRAGON");
|
||
|
|
require (ownerOf(id2)==msg.sender,"NOT YOUR DRAGON");
|
||
|
|
require (ownerOf(id3)==msg.sender,"NOT YOUR DRAGON");
|
||
|
|
require( _breeded[address(this)][id1]==false ,"Bred Dragons CAN'T Be Sacrificed");
|
||
|
|
require( _breeded[address(this)][id2]==false ,"Bred Dragons CAN'T Be Sacrificed");
|
||
|
|
require( _breeded[address(this)][id3]==false ,"Bred Dragons CAN'T Be Sacrificed");
|
||
|
|
_ERC20.burn(msg.sender, amount);
|
||
|
|
|
||
|
|
_transfer(
|
||
|
|
msg.sender,
|
||
|
|
0x000000000000000000000000000000000000dEaD,
|
||
|
|
id1
|
||
|
|
);
|
||
|
|
_transfer(
|
||
|
|
msg.sender,
|
||
|
|
0x000000000000000000000000000000000000dEaD,
|
||
|
|
id2
|
||
|
|
);
|
||
|
|
_transfer(
|
||
|
|
msg.sender,
|
||
|
|
0x000000000000000000000000000000000000dEaD,
|
||
|
|
id3
|
||
|
|
);
|
||
|
|
|
||
|
|
_ancientnft.mint(msg.sender);
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function setmaxsupplyforbabynft(uint amount)public onlyOwner{
|
||
|
|
_babynft.setmaxsupply(amount);
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
function setbaseuriforbabynft(string memory _newBaseURI) public onlyOwner{
|
||
|
|
_babynft.setBaseURI(_newBaseURI);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function setbaseuriforancientnft(string memory _newBaseURI) public onlyOwner{
|
||
|
|
_ancientnft.setBaseURI(_newBaseURI);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function setCost(uint256 _newCost) public onlyOwner {
|
||
|
|
cost = _newCost;
|
||
|
|
}
|
||
|
|
|
||
|
|
// set or update max number of mint per mint call
|
||
|
|
function setmaxMintAmount(uint256 _newmaxMintAmount) public onlyOwner {
|
||
|
|
maxMintAmount = _newmaxMintAmount;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function setBaseURI(string memory _newBaseURI) public onlyOwner {
|
||
|
|
baseURI_ = _newBaseURI;
|
||
|
|
}
|
||
|
|
|
||
|
|
// set metadata base extention
|
||
|
|
function setBaseExtension(string memory _newBaseExtension)public onlyOwner {
|
||
|
|
baseExtension = _newBaseExtension; }
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function claim() public onlyOwner {
|
||
|
|
// get contract total balance
|
||
|
|
uint256 balance = address(this).balance;
|
||
|
|
// begin withdraw based on address percentage
|
||
|
|
|
||
|
|
// 40%
|
||
|
|
payable(Jazzasaurus).transfer((balance / 100) * 40);
|
||
|
|
// 20%
|
||
|
|
payable(possumchsr69).transfer((balance / 100) * 20);
|
||
|
|
// 25%
|
||
|
|
payable(munheezy).transfer((balance / 100) * 25);
|
||
|
|
// 15%
|
||
|
|
payable(_community).transfer((balance / 100) * 15);
|
||
|
|
}
|
||
|
|
|
||
|
|
function walletofNFT(address _owner)
|
||
|
|
public
|
||
|
|
view
|
||
|
|
returns (uint256[] memory)
|
||
|
|
{
|
||
|
|
uint256 ownerTokenCount = balanceOf(_owner);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
for (uint256 i; i < ownerTokenCount; i++) {
|
||
|
|
tokenIds[i] = tokenOfOwnerByIndex(_owner, i);
|
||
|
|
}
|
||
|
|
return tokenIds;
|
||
|
|
}
|
||
|
|
|
||
|
|
function checkrewardbal()public view returns(uint){
|
||
|
|
|
||
|
|
uint256 ownerTokenCount = balanceOf(msg.sender);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
tokenIds= walletofNFT(msg.sender);
|
||
|
|
|
||
|
|
uint current;
|
||
|
|
uint reward;
|
||
|
|
uint rewardbal;
|
||
|
|
for (uint i ;i<ownerTokenCount; i++){
|
||
|
|
|
||
|
|
if (idtostartingtimet[tokenIds[i]][msg.sender]>0 ){
|
||
|
|
current = block.timestamp - idtostartingtimet[tokenIds[i]][msg.sender];
|
||
|
|
reward = ((10*10**18)*current)/86400;
|
||
|
|
rewardbal+=reward;
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return rewardbal;
|
||
|
|
}
|
||
|
|
|
||
|
|
function checkrewardforancientbal()public view returns(uint){
|
||
|
|
return _ancientnft.checkrewardbal(msg.sender);
|
||
|
|
}
|
||
|
|
|
||
|
|
function checkrewardforbabybal()public view returns(uint){
|
||
|
|
return _babynft.checkrewardbal(msg.sender);
|
||
|
|
}
|
||
|
|
|
||
|
|
function claimreward() public {
|
||
|
|
require(balanceOf(msg.sender)>0, "Not Qualified For Reward");
|
||
|
|
uint256 ownerTokenCount = balanceOf(msg.sender);
|
||
|
|
uint256[] memory tokenIds = new uint256[](ownerTokenCount);
|
||
|
|
tokenIds= walletofNFT(msg.sender);
|
||
|
|
|
||
|
|
uint current;
|
||
|
|
uint reward;
|
||
|
|
uint rewardbal;
|
||
|
|
for (uint i ;i<ownerTokenCount; i++){
|
||
|
|
|
||
|
|
if (idtostartingtimet[tokenIds[i]][msg.sender]>0 ){
|
||
|
|
current = block.timestamp - idtostartingtimet[tokenIds[i]][msg.sender];
|
||
|
|
reward = ((10*10**18)*current)/86400;
|
||
|
|
rewardbal+=reward;
|
||
|
|
idtostartingtimet[tokenIds[i]][msg.sender]=block.timestamp;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
_ERC20.mint(msg.sender,rewardbal);
|
||
|
|
if (_ancientnft.balanceOf(msg.sender)>0){
|
||
|
|
_ancientnft.claimreward(msg.sender);
|
||
|
|
|
||
|
|
}
|
||
|
|
if (_babynft.balanceOf(msg.sender)>0){
|
||
|
|
_babynft.claimreward(msg.sender);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function checkerc20address()public view returns(address) {
|
||
|
|
|
||
|
|
return (address(_ERC20)); // this is the deployed address of erc20token
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function checkancientnftaddress()public view returns(address) {
|
||
|
|
|
||
|
|
return (address(_ancientnft)); // this is the deployed address of ancienttoken
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function checkbabynftaddress()public view returns(address) {
|
||
|
|
|
||
|
|
return (address(_babynft)); // this is the deployed address of babytoken
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function _transfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) internal virtual {
|
||
|
|
require(ERC721.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
|
||
|
|
require(to != address(0), "ERC721: transfer to the zero address");
|
||
|
|
|
||
|
|
_beforeTokenTransfer(from, to, tokenId);
|
||
|
|
|
||
|
|
// Clear approvals from the previous owner
|
||
|
|
_approve(address(0), tokenId);
|
||
|
|
|
||
|
|
_balances[from] -= 1;
|
||
|
|
_balances[to] += 1;
|
||
|
|
_owners[tokenId] = to;
|
||
|
|
idtostartingtimet[tokenId][to]=block.timestamp;
|
||
|
|
idtostartingtimet[tokenId][from]=0;
|
||
|
|
|
||
|
|
|
||
|
|
emit Transfer(from, to, tokenId);
|
||
|
|
|
||
|
|
_afterTokenTransfer(from, to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _approve(address to, uint256 tokenId) internal virtual {
|
||
|
|
_tokenApprovals[tokenId] = to;
|
||
|
|
emit Approval(ERC721.ownerOf(tokenId), to, tokenId);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
function _setApprovalForAll(
|
||
|
|
address owner,
|
||
|
|
address operator,
|
||
|
|
bool approved
|
||
|
|
) internal virtual {
|
||
|
|
require(owner != operator, "ERC721: approve to caller");
|
||
|
|
_operatorApprovals[owner][operator] = approved;
|
||
|
|
emit ApprovalForAll(owner, operator, approved);
|
||
|
|
}
|
||
|
|
|
||
|
|
function _checkOnERC721Received(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId,
|
||
|
|
bytes memory _data
|
||
|
|
) private returns (bool) {
|
||
|
|
if (to.isContract()) {
|
||
|
|
try IERC721Receiver(to).onERC721Received(_msgSender(), from, tokenId, _data) returns (bytes4 retval) {
|
||
|
|
return retval == IERC721Receiver.onERC721Received.selector;
|
||
|
|
} catch (bytes memory reason) {
|
||
|
|
if (reason.length == 0) {
|
||
|
|
revert("ERC721: transfer to non ERC721Receiver implementer");
|
||
|
|
} else {
|
||
|
|
assembly {
|
||
|
|
revert(add(32, reason), mload(reason))
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
} else {
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
function _afterTokenTransfer(
|
||
|
|
address from,
|
||
|
|
address to,
|
||
|
|
uint256 tokenId
|
||
|
|
) internal virtual {}
|
||
|
|
}
|