Contract Source Code:
/*
░██████╗░███╗░░██╗░█████╗░███╗░░░███╗███████╗██╗░░░░░░█████╗░███╗░░██╗██████╗░
██╔════╝░████╗░██║██╔══██╗████╗░████║██╔════╝██║░░░░░██╔══██╗████╗░██║██╔══██╗
██║░░██╗░██╔██╗██║██║░░██║██╔████╔██║█████╗░░██║░░░░░███████║██╔██╗██║██║░░██║
██║░░╚██╗██║╚████║██║░░██║██║╚██╔╝██║██╔══╝░░██║░░░░░██╔══██║██║╚████║██║░░██║
╚██████╔╝██║░╚███║╚█████╔╝██║░╚═╝░██║███████╗███████╗██║░░██║██║░╚███║██████╔╝
░╚═════╝░╚═╝░░╚══╝░╚════╝░╚═╝░░░░░╚═╝╚══════╝╚══════╝╚═╝░░╚═╝╚═╝░░╚══╝╚═════╝░
╓╓╓▄▄▄▓▓█▓▓▓▓▀▀▀▀▀▀▓█
╓▄██▀╙╙░░░░░░░░░░░░░░░░╠╬║█
╓▄▓▀╙░░░░░░░░░░░░░░░░░░░░░░╠╠╠║▌
╓█╩░░░░░░░░░░░░░░░░░░░░░░░░░░╠╠╠╠║▌
▄█▒░░░░░░░░░░░░░▒▄██████▄▄░░░░░╠╠╠╠║▌
╓██▀▀▀╙╙╚▀░░░░░▄██╩░░░░░░░░╙▀█▄▒░╠╠╠╠╬█
╓▓▀╙░░░░░░░░░░░░░╚╩░░░░░░░░░░░░░░╙▀█╠╠╠╠╬▓
▄╩░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░░╠╠╠╠╠║▌
║██▓▓▓▓▓▄▄▒░░░░░░░░░░░▄▄██▓█▄▄▒░░░░░░░╠╠╠╠╠╬█
╔▀ ╙▀▀█▓▄▄▄██▀╙ └╙▀█▄▒░░░╠╠╠╠╠╠║▌
║█▀▀╙╙╙▀▀▓▄╖ ▄▄▓▓▓▓╗▄▄╓ ╙╙█▄▒░╠╠╠╠╠╬█
╓▀ ╓╓╓╓╓╓ ╙█▄ ▄▀╙ ╙▀▓▄ ╙▀▓▒▒╠╠╠║▌
▐██████████╙╙▀█▄ ╙█▄▓████████▀▀╗▄ █▀███╬█
█║██████▌ ██ ╙██╓███████╙▀█ └▀╗╓ ║▒ ╙╙▓
╒▌╫███████╦╫█ ║ ╫███████╓▄█▌ └█╕ ║▌ ▀█▀▀
█╚██████████ ╓╣ ║██████████▒ ╔▀╙ ║▒ └█
┌╣█╣████████╓╓▄▓▓▒▄█▄║████████▌╓╗╗▀╙ ╓█ ╚▄
│█▄╗▀▀╙ ╙▀╙ ╙▀▀██▒ ▄█ ╙▄
█▒ ╙▀▀▀▀╠█▌╓▄▓▀ ║
╙█╓ ╓╓ ╓██╩║▌ ║
╓╣███▄▄▄▄▓██╬╬╠╬███▄▄▄▄╓╓╓╓╓▄▄▄▓█╬╬▒░░╠█ ╔ ┌█
╓▌ ▀█╬╬▒╠╠╠╠░▒░░░╠╠╠╚╚╚╩╠╠╠╠╬███▀╩░░░▄█ ▓ █▀
╒▌ ╘█░╚╚╚╚╚▀▀▀▀▀▀▀▀▀▀▀▀▀▀╚╚╚░░░░░░▄█▀╙ ║ ▐▌
╟ └▀█▄▒▒▒░░░░░░░░░░░▒▒▒▒▒▄▄█▓╝▀╙ ▐▌
║░ ╙╙▀▀▀▀▀▀▀▀▀▀▀▀▀▀╙╙ ╓ █
█ ▓ ╓█
║▌ ╔ ╔█▀
█ ╚▄ ╓╩ ╔▀
╚▌ ╙ ▓▀ ╓█╙
╙▌ ▐ ╓═ ▄ ╓▄▀╙
▀▄ ╙▒ ▄██▄█▀
╙▀▄╓║▄ └ ▄╩
╙▀█ ╓▄▀▀
▀▓ ▄▄▓▀▀▀▀╙
└▀╗▄╓▄▀╙
https://www.gnomeland.money/
https://twitter.com/Gnome0xLand
$GNOMES
Everywhere...
// SPDX-License-Identifier: MIT
*/
pragma solidity ^0.8.0;
// File: @openzeppelin/contracts/utils/ReentrancyGuard.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)
pragma solidity ^0.8.20;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant NOT_ENTERED = 1;
uint256 private constant ENTERED = 2;
uint256 private _status;
/**
* @dev Unauthorized reentrant call.
*/
error ReentrancyGuardReentrantCall();
constructor() {
_status = NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be NOT_ENTERED
if (_status == ENTERED) {
revert ReentrancyGuardReentrantCall();
}
// Any calls to nonReentrant after this point will fail
_status = ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = NOT_ENTERED;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == ENTERED;
}
}
// File: @openzeppelin/contracts/utils/math/SignedMath.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/SignedMath.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard signed math utilities missing in the Solidity language.
*/
library SignedMath {
/**
* @dev Returns the largest of two signed numbers.
*/
function max(int256 a, int256 b) internal pure returns (int256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two signed numbers.
*/
function min(int256 a, int256 b) internal pure returns (int256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two signed numbers without overflow.
* The result is rounded towards zero.
*/
function average(int256 a, int256 b) internal pure returns (int256) {
// Formula from the book "Hacker's Delight"
int256 x = (a & b) + ((a ^ b) >> 1);
return x + (int256(uint256(x) >> 255) & (a ^ b));
}
/**
* @dev Returns the absolute unsigned value of a signed value.
*/
function abs(int256 n) internal pure returns (uint256) {
unchecked {
// must be unchecked in order to support `n = type(int256).min`
return uint256(n >= 0 ? n : -n);
}
}
}
// File: @openzeppelin/contracts/utils/math/Math.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/math/Math.sol)
pragma solidity ^0.8.20;
/**
* @dev Standard math utilities missing in the Solidity language.
*/
library Math {
/**
* @dev Muldiv operation overflow.
*/
error MathOverflowedMulDiv();
enum Rounding {
Floor, // Toward negative infinity
Ceil, // Toward positive infinity
Trunc, // Toward zero
Expand // Away from zero
}
/**
* @dev Returns the addition of two unsigned integers, with an overflow flag.
*/
function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
uint256 c = a + b;
if (c < a) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the subtraction of two unsigned integers, with an overflow flag.
*/
function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b > a) return (false, 0);
return (true, a - b);
}
}
/**
* @dev Returns the multiplication of two unsigned integers, with an overflow flag.
*/
function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
// Gas optimization: this is cheaper than requiring 'a' not being zero, but the
// benefit is lost if 'b' is also tested.
// See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
if (a == 0) return (true, 0);
uint256 c = a * b;
if (c / a != b) return (false, 0);
return (true, c);
}
}
/**
* @dev Returns the division of two unsigned integers, with a division by zero flag.
*/
function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a / b);
}
}
/**
* @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
*/
function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
unchecked {
if (b == 0) return (false, 0);
return (true, a % b);
}
}
/**
* @dev Returns the largest of two numbers.
*/
function max(uint256 a, uint256 b) internal pure returns (uint256) {
return a > b ? a : b;
}
/**
* @dev Returns the smallest of two numbers.
*/
function min(uint256 a, uint256 b) internal pure returns (uint256) {
return a < b ? a : b;
}
/**
* @dev Returns the average of two numbers. The result is rounded towards
* zero.
*/
function average(uint256 a, uint256 b) internal pure returns (uint256) {
// (a + b) / 2 can overflow.
return (a & b) + (a ^ b) / 2;
}
/**
* @dev Returns the ceiling of the division of two numbers.
*
* This differs from standard division with `/` in that it rounds towards infinity instead
* of rounding towards zero.
*/
function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
if (b == 0) {
// Guarantee the same behavior as in a regular Solidity division.
return a / b;
}
// (a + b - 1) / b can overflow on addition, so we distribute.
return a == 0 ? 0 : (a - 1) / b + 1;
}
/**
* @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
* denominator == 0.
* @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
* Uniswap Labs also under MIT license.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
unchecked {
// 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
// use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
// variables such that product = prod1 * 2^256 + prod0.
uint256 prod0 = x * y; // Least significant 256 bits of the product
uint256 prod1; // Most significant 256 bits of the product
assembly {
let mm := mulmod(x, y, not(0))
prod1 := sub(sub(mm, prod0), lt(mm, prod0))
}
// Handle non-overflow cases, 256 by 256 division.
if (prod1 == 0) {
// Solidity will revert if denominator == 0, unlike the div opcode on its own.
// The surrounding unchecked block does not change this fact.
// See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
return prod0 / denominator;
}
// Make sure the result is less than 2^256. Also prevents denominator == 0.
if (denominator <= prod1) {
revert MathOverflowedMulDiv();
}
///////////////////////////////////////////////
// 512 by 256 division.
///////////////////////////////////////////////
// Make division exact by subtracting the remainder from [prod1 prod0].
uint256 remainder;
assembly {
// Compute remainder using mulmod.
remainder := mulmod(x, y, denominator)
// Subtract 256 bit number from 512 bit number.
prod1 := sub(prod1, gt(remainder, prod0))
prod0 := sub(prod0, remainder)
}
// Factor powers of two out of denominator and compute largest power of two divisor of denominator.
// Always >= 1. See https://cs.stackexchange.com/q/138556/92363.
uint256 twos = denominator & (0 - denominator);
assembly {
// Divide denominator by twos.
denominator := div(denominator, twos)
// Divide [prod1 prod0] by twos.
prod0 := div(prod0, twos)
// Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
twos := add(div(sub(0, twos), twos), 1)
}
// Shift in bits from prod1 into prod0.
prod0 |= prod1 * twos;
// Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
// that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
// four bits. That is, denominator * inv = 1 mod 2^4.
uint256 inverse = (3 * denominator) ^ 2;
// Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
// works in modular arithmetic, doubling the correct bits in each step.
inverse *= 2 - denominator * inverse; // inverse mod 2^8
inverse *= 2 - denominator * inverse; // inverse mod 2^16
inverse *= 2 - denominator * inverse; // inverse mod 2^32
inverse *= 2 - denominator * inverse; // inverse mod 2^64
inverse *= 2 - denominator * inverse; // inverse mod 2^128
inverse *= 2 - denominator * inverse; // inverse mod 2^256
// Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
// This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
// less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
// is no longer required.
result = prod0 * inverse;
return result;
}
}
/**
* @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
*/
function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
uint256 result = mulDiv(x, y, denominator);
if (unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0) {
result += 1;
}
return result;
}
/**
* @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
* towards zero.
*
* Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
*/
function sqrt(uint256 a) internal pure returns (uint256) {
if (a == 0) {
return 0;
}
// For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
//
// We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
// `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
//
// This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
// → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
// → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
//
// Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
uint256 result = 1 << (log2(a) >> 1);
// At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
// since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
// every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
// into the expected uint128 result.
unchecked {
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
result = (result + a / result) >> 1;
return min(result, a / result);
}
}
/**
* @notice Calculates sqrt(a), following the selected rounding direction.
*/
function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = sqrt(a);
return result + (unsignedRoundsUp(rounding) && result * result < a ? 1 : 0);
}
}
/**
* @dev Return the log in base 2 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log2(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 128;
}
if (value >> 64 > 0) {
value >>= 64;
result += 64;
}
if (value >> 32 > 0) {
value >>= 32;
result += 32;
}
if (value >> 16 > 0) {
value >>= 16;
result += 16;
}
if (value >> 8 > 0) {
value >>= 8;
result += 8;
}
if (value >> 4 > 0) {
value >>= 4;
result += 4;
}
if (value >> 2 > 0) {
value >>= 2;
result += 2;
}
if (value >> 1 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 2, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log2(value);
return result + (unsignedRoundsUp(rounding) && 1 << result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 10 of a positive value rounded towards zero.
* Returns 0 if given 0.
*/
function log10(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >= 10 ** 64) {
value /= 10 ** 64;
result += 64;
}
if (value >= 10 ** 32) {
value /= 10 ** 32;
result += 32;
}
if (value >= 10 ** 16) {
value /= 10 ** 16;
result += 16;
}
if (value >= 10 ** 8) {
value /= 10 ** 8;
result += 8;
}
if (value >= 10 ** 4) {
value /= 10 ** 4;
result += 4;
}
if (value >= 10 ** 2) {
value /= 10 ** 2;
result += 2;
}
if (value >= 10 ** 1) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 10, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log10(value);
return result + (unsignedRoundsUp(rounding) && 10 ** result < value ? 1 : 0);
}
}
/**
* @dev Return the log in base 256 of a positive value rounded towards zero.
* Returns 0 if given 0.
*
* Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
*/
function log256(uint256 value) internal pure returns (uint256) {
uint256 result = 0;
unchecked {
if (value >> 128 > 0) {
value >>= 128;
result += 16;
}
if (value >> 64 > 0) {
value >>= 64;
result += 8;
}
if (value >> 32 > 0) {
value >>= 32;
result += 4;
}
if (value >> 16 > 0) {
value >>= 16;
result += 2;
}
if (value >> 8 > 0) {
result += 1;
}
}
return result;
}
/**
* @dev Return the log in base 256, following the selected rounding direction, of a positive value.
* Returns 0 if given 0.
*/
function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
unchecked {
uint256 result = log256(value);
return result + (unsignedRoundsUp(rounding) && 1 << (result << 3) < value ? 1 : 0);
}
}
/**
* @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
*/
function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
return uint8(rounding) % 2 == 1;
}
}
// File: @openzeppelin/contracts/utils/Strings.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Strings.sol)
pragma solidity ^0.8.20;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant HEX_DIGITS = "0123456789abcdef";
uint8 private constant ADDRESS_LENGTH = 20;
/**
* @dev The `value` string doesn't fit in the specified `length`.
*/
error StringsInsufficientHexLength(uint256 value, uint256 length);
/**
* @dev Converts a `uint256` to its ASCII `string` decimal representation.
*/
function toString(uint256 value) internal pure returns (string memory) {
unchecked {
uint256 length = Math.log10(value) + 1;
string memory buffer = new string(length);
uint256 ptr;
/// @solidity memory-safe-assembly
assembly {
ptr := add(buffer, add(32, length))
}
while (true) {
ptr--;
/// @solidity memory-safe-assembly
assembly {
mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
}
value /= 10;
if (value == 0) break;
}
return buffer;
}
}
/**
* @dev Converts a `int256` to its ASCII `string` decimal representation.
*/
function toStringSigned(int256 value) internal pure returns (string memory) {
return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
unchecked {
return toHexString(value, Math.log256(value) + 1);
}
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
*/
function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
uint256 localValue = value;
bytes memory buffer = new bytes(2 * length + 2);
buffer[0] = "0";
buffer[1] = "x";
for (uint256 i = 2 * length + 1; i > 1; --i) {
buffer[i] = HEX_DIGITS[localValue & 0xf];
localValue >>= 4;
}
if (localValue != 0) {
revert StringsInsufficientHexLength(value, length);
}
return string(buffer);
}
/**
* @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal
* representation.
*/
function toHexString(address addr) internal pure returns (string memory) {
return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);
}
/**
* @dev Returns true if the two strings are equal.
*/
function equal(string memory a, string memory b) internal pure returns (bool) {
return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
}
}
// File: @openzeppelin/contracts/utils/Context.sol
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}
// File: @openzeppelin/contracts/utils/Pausable.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Pausable.sol)
// File: @openzeppelin/contracts/access/Ownable.sol
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
/**
* @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.
*
* The initial owner is set to the address provided by the deployer. 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;
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling 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 {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_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);
}
}
pragma solidity ^0.8.20;
/**
* @dev Contract module which allows children to implement an emergency stop
* mechanism that can be triggered by an authorized account.
*
* This module is used through inheritance. It will make available the
* modifiers `whenNotPaused` and `whenPaused`, which can be applied to
* the functions of your contract. Note that they will not be pausable by
* simply including this module, only once the modifiers are put in place.
*/
abstract contract Pausable is Context {
bool private _paused;
/**
* @dev Emitted when the pause is triggered by `account`.
*/
event Paused(address account);
/**
* @dev Emitted when the pause is lifted by `account`.
*/
event Unpaused(address account);
/**
* @dev The operation failed because the contract is paused.
*/
error EnforcedPause();
/**
* @dev The operation failed because the contract is not paused.
*/
error ExpectedPause();
/**
* @dev Initializes the contract in unpaused state.
*/
constructor() {
_paused = false;
}
/**
* @dev Modifier to make a function callable only when the contract is not paused.
*
* Requirements:
*
* - The contract must not be paused.
*/
modifier whenNotPaused() {
_requireNotPaused();
_;
}
/**
* @dev Modifier to make a function callable only when the contract is paused.
*
* Requirements:
*
* - The contract must be paused.
*/
modifier whenPaused() {
_requirePaused();
_;
}
/**
* @dev Returns true if the contract is paused, and false otherwise.
*/
function paused() public view virtual returns (bool) {
return _paused;
}
/**
* @dev Throws if the contract is paused.
*/
function _requireNotPaused() internal view virtual {
if (paused()) {
revert EnforcedPause();
}
}
/**
* @dev Throws if the contract is not paused.
*/
function _requirePaused() internal view virtual {
if (!paused()) {
revert ExpectedPause();
}
}
/**
* @dev Triggers stopped state.
*
* Requirements:
*
* - The contract must not be paused.
*/
function _pause() internal virtual whenNotPaused {
_paused = true;
emit Paused(_msgSender());
}
/**
* @dev Returns to normal state.
*
* Requirements:
*
* - The contract must be paused.
*/
function _unpause() internal virtual whenPaused {
_paused = false;
emit Unpaused(_msgSender());
}
}
interface IGnomeURI {
function _tokenURI(uint256 id) external view returns (string memory);
}
interface IMinimalNonfungiblePositionManager {
function createAndInitializePoolIfNecessary(
address token0,
address token1,
uint24 fee,
uint160 sqrtPriceX96
) external payable returns (address pool);
}
// libraries to separate ERC20 and ERC721 events, and certain signature-specific functions
// ERC20 events
library libSJ20 {
event Transfer(address indexed from, address indexed to, uint amount);
event Approval(address indexed owner, address indexed spender, uint256 value);
function emitTransfer(address _from, address _to, uint _amount) internal {
emit Transfer(_from, _to, _amount);
}
function emitApproval(address _owner, address _spender, uint _value) internal {
emit Approval(_owner, _spender, _value);
}
}
// ERC721 events
library libSJ721 {
event Transfer(address indexed _from, address indexed _to, uint indexed _tokenId);
event Approval(address indexed _owner, address indexed _approved, uint indexed _tokenId);
event ApprovalForAll(address indexed _owner, address indexed _operator, bool _approved);
function emitTransfer(address _from, address _to, uint _tokenId) internal {
emit Transfer(_from, _to, _tokenId);
}
function emitApproval(address _owner, address _approve, uint _tokenId) internal {
emit Approval(_owner, _approve, _tokenId);
}
function emitApprovalForAll(address _owner, address _operator, bool _approved) internal {
emit ApprovalForAll(_owner, _operator, _approved);
}
}
// ERC165 https://eips.ethereum.org/EIPS/eip-721
interface IERC165 {
function supportsInterface(bytes4 interfaceID) external view returns (bool);
}
// ERC20 https://eips.ethereum.org/EIPS/eip-20
interface IERC20 {
function balanceOf(address account) external view returns (uint256);
function totalSupply() external view returns (uint256);
function transfer(address to, uint256 value) external returns (bool);
function allowance(address owner, address spender) external view returns (uint256);
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
}
// ERC721 https://eips.ethereum.org/EIPS/eip-721
interface IERC721 is IERC165 {
function balanceOf(address account) external view returns (uint256);
function ownerOf(uint256 _tokenId) external view returns (address);
function safeTransferFrom(address _from, address _to, uint256 _tokenId, bytes memory data) external payable;
function safeTransferFrom(address _from, address _to, uint256 _tokenId) external payable;
function setApprovalForAll(address _operator, bool _approved) external;
function getApproved(uint256 _tokenId) external view returns (address);
function isApprovedForAll(address _owner, address _operator) external view returns (bool);
// payable removed for erc20 etherscan compatibility
function approve(address spender, uint256 value) external returns (bool);
function transferFrom(address from, address to, uint256 value) external returns (bool);
}
interface ISJ741 is IERC20, IERC721 {
// library transfers can not be included in the interface
// incorporate them directly with library
// libSJ20.Transfer
// libSJ20.Approval
// libSJ721.Transfer
// libSJ721.Approval
// libSJ721.ApprovalForAll
function balanceOf(address account) external view override(IERC20, IERC721) returns (uint256);
function approve(address spender, uint256 value) external override(IERC20, IERC721) returns (bool);
function transferFrom(address from, address to, uint256 value) external override(IERC20, IERC721) returns (bool);
}
// ERC721 Token Receiver https://eips.ethereum.org/EIPS/eip-721
interface IERC721TokenReceiver {
function onERC721Received(
address _operator,
address _from,
uint256 _tokenId,
bytes memory _data
) external returns (bytes4);
}
interface IGnomeGamePlay {
function isGnomeSignedUp(uint256 tokenId) external view returns (bool);
function getMeditateTimeStamp(uint256 gnomeID) external view returns (uint256);
function getSleepTimeStamp(uint256 gnomeID) external view returns (uint256);
function getGnomeStats(
uint256 tokenId
)
external
view
returns (
string memory _gnomeX,
uint256 _xp,
uint256 _hp,
uint256 _shieldTimeStamp,
uint256 _meditationTimeStamp,
bool[] memory _items,
uint256 _activityAmount,
uint256 _boopAmount,
uint256 _WethSpent,
uint256 _GnomeSpent,
uint256 _lastHPUpdateTime,
uint256 _gnomeEmotion
);
function setGnomeStats(
uint256 tokenId,
string memory _gnomeX,
uint256 _xp,
uint256 _hp,
uint256 _shieldTimeStamp,
uint256 _meditateTimeStamp,
bool[] memory _items,
uint256 _activityAmount,
uint256 _boopAmount,
uint256 _lastHPUpdateTime,
uint256 _gnomeEmotion,
uint256 _GnomeSpent,
uint256 _WethSpent
) external returns (bool);
function deleteGameStats(uint256 tokenId) external;
function setGnomeX(uint256 tokenId, string memory gnomeX) external;
function setGnomeXP(uint256 tokenId, uint256 xp) external;
function setGnomeHP(uint256 tokenId, uint256 hp) external;
function setisSignedUp(uint256 tokenId, bool _isSignedUp) external;
function setBoopTimeStamp(uint256 tokenId, uint256 lastAtackTimeStamp) external;
function setGnomeItems(uint256 tokenId, bool[] memory items) external;
function setGnomeFeedAmount(string memory food, uint256 tokenId, uint256 _feedAmount) external;
function setGnomeBoopAmount(uint256 tokenId, uint256 boopAmount) external;
function getIsSleeping(uint256 tokenId) external view returns (bool);
function setMeditateTimeStamp(uint256 tokenId, uint256 _meditateTimeStamp) external;
function setGnomeHPUpdate(uint256 tokenId, uint256 lastHPUpdateTime) external;
function setGnomeEmotion(uint256 tokenId, uint256 gnomeEmotion) external;
}
contract GnomesNFT is ISJ741, Ownable {
/// @dev Token name
string internal constant _name = "GnomeLand";
/// @dev Token symbol
string internal constant _symbol = "GNOMES";
uint internal constant _decimals = 8;
uint internal constant _totalIds = 555;
uint internal _totalSupply = _totalIds * 10 ** _decimals;
uint internal constant _maxSupply = 3333 * 10 ** _decimals;
uint internal constant ONE = 10 ** _decimals; // 1.0 token(s)
uint internal constant MAXID = ONE + _totalIds; // 1.00000001 : 1.00003333 is the range for NFT IDs
uint32 public minted; // number of unique ID mints
uint32[] private broken; // broken NFTs stored in limbo list
string public baseTokenURI =
"https://nftstorage.link/ipfs/bafkreie37v2cvci7sy3pnk53w4ju7k3pdtdipdq5hgon2zbkitmbmjnpiy";
address public dev;
bool public supportsNFTinterface;
IGnomeURI public gnomeURI;
IGnomeGamePlay public gnomeGamePlay;
mapping(address => mapping(address => bool)) private _operatorApprovals;
mapping(address => mapping(address => uint)) internal _allowance;
mapping(uint256 tokenId => address) public ownerOf;
mapping(uint256 => address) private _nftApprovals;
mapping(address => uint) internal _balanceOf;
mapping(address => uint32[]) public ownedNFTs;
mapping(uint32 => uint256) private idToIndex;
mapping(string => uint16) public destChainId;
mapping(address => uint256) public treasuryMintTimeStamp;
mapping(address => bool) public isAuth;
bool gameActive = false;
uint256 public factoryMints = 0;
uint256 public maxfactoryMints = 690;
error UnsupportedReceiver();
modifier onlyDev() {
require(msg.sender == dev, "Not the developer");
_;
}
constructor(address _owner) Ownable(_owner) {
minted = uint32(ONE);
_balanceOf[msg.sender] = _totalSupply;
dev = msg.sender;
isAuth[msg.sender] = true;
}
function name() public view virtual returns (string memory) {
return _name;
}
function symbol() public view virtual returns (string memory) {
return _symbol;
}
function decimals() public view virtual returns (uint) {
return _decimals;
}
function totalSupply() public view override returns (uint) {
return _totalSupply;
}
function balanceOf(address account) public view override returns (uint) {
return _balanceOf[account];
}
function allowance(address owner, address spender) public view override returns (uint) {
return _allowance[owner][spender];
}
function setBaseURI(string memory newBaseURI) public onlyDev {
baseTokenURI = newBaseURI;
}
function changeDev(address newDev) public onlyDev {
dev = newDev;
} //simple function to change developer address, or revoke ownership (with address(0))
// @DEV toggleNFTinterface is for the small possibility of frontend system changes leading the contract to favor enabling the disabled supportsNFTinterface flag
// don't waste it, as frontends don't typically change classification of contracts
// probably never to be used.
function toggelNFTinterface() public onlyDev {
supportsNFTinterface = !supportsNFTinterface;
}
function approve(address spender, uint amount) public override returns (bool) {
// if the amount is greater than one token, and within range of IDs for NFTs
// then set NFT approval for the given ID
if (amount > ONE && amount <= MAXID) {
address owner = ownerOf[amount]; // getting the owner of token ID via the `amount` input
if (msg.sender != owner && !isApprovedForAll(owner, msg.sender)) revert("SJ741: You are not approved");
_nftApprovals[amount] = spender; // calling nft approval for the token and spender
libSJ721.emitApproval(owner, spender, amount);
return true;
}
// else set the ERC20 allowance
// the NFT ID range being set within a limited subset of ONE token(s)
// allows for non-clashing interactions
_allowance[msg.sender][spender] = amount;
libSJ20.emitApproval(msg.sender, spender, amount);
return true;
}
function _transfer741(address from, address to, uint amount) internal virtual {
require(_balanceOf[from] >= amount, "SJ741: transfer amount exceeds balance");
// checking the decimal amount of tokens owned before transaction for both participants
uint256 fromDecimalsPre = _balanceOf[from] % ONE;
uint256 toDecimalsPre = _balanceOf[to] % ONE;
// simple erc20 balance operations
_transfer20(from, to, amount);
// checking the decimal amount of tokens after transaction for both partcipants
uint256 fromDecimalsPost = _balanceOf[from] % ONE;
uint256 toDecimalsPost = _balanceOf[to] % ONE;
// stores the NFT IDs owned by `from`, enabling NFT management for that address.
uint32[] storage ownedNFTsArray = ownedNFTs[from];
// references NFTs marked as "broken", tracking these special state NFTs.
uint32[] storage brokenIDsArray = broken;
// if sender has higher decimal count after transaction, then they "roll under" and break an NFT
if (fromDecimalsPre < fromDecimalsPost) {
if (ownedNFTsArray.length > 0) {
// if the sender has an nft to send
uint32 tokenId = ownedNFTsArray[0]; //selects the user's first NFT from the list
brokenIDsArray.push(tokenId); //pushes the nft into the "broken list" for limbo NFTs
_transfer721(from, address(0), tokenId); //transfers the NFT ID ownership to (0) address for stewardship
}
}
// if receiver has lower decimal count after transaction then they "roll over" and will "remake" an nft
if (toDecimalsPre > toDecimalsPost) {
if (brokenIDsArray.length > 0) {
// recover an id from broken list
_transfer721(address(0), to, brokenIDsArray[brokenIDsArray.length - 1]);
brokenIDsArray.pop();
} else {
// mint new id
_mint(to);
}
}
// amount of tokens - amount of whole tokens being processed in int
uint amountInTokens = amount / ONE;
// ignore minting nfts from dev when they call -- this allows for gas-efficient team operations
// @DEV if dev gathers NFTs, use the ERC721 transferFrom method to extract
// @DEV be careful, don't let the wallet fall to some convoluted transferFrom scam to do something unexpected
if (from == dev) return;
if (amountInTokens > 0) {
uint len = ownedNFTsArray.length; //len is the length, or number of NFTs in the addresses's owned array
len = amountInTokens < len ? amountInTokens : len;
// transfers owned NFTs from `from` to `to` until either all are transferred or the desired amount is reached
// Subtracts transferred NFT count from `amountInTokens` to update remaining transfers
for (uint i = 0; i < len; i++) {
_transfer721(from, to, ownedNFTsArray[0]);
}
amountInTokens -= len;
len = brokenIDsArray.length;
len = amountInTokens < len ? amountInTokens : len;
// recovers NFTs from the broken state to `to`, or mints new ones if not enough broken NFTs are available
// if any tokens remain to be allocated, it mints new NFTs to `to` for the remaining balance
for (uint i = 0; i < len; i++) {
_transfer721(address(0), to, brokenIDsArray[brokenIDsArray.length - 1]);
brokenIDsArray.pop();
}
_mintBatch(to, amountInTokens - len);
}
}
function _mintBatch(address to, uint256 amount) internal {
if (amount == 0) return; // Exit if no NFTs to mint
if (amount == 1) {
// Optimize single mint process
_mint(to);
return;
}
uint32 id = minted; // Start ID from last minted value
uint256 ownedLen = ownedNFTs[to].length; // Current number of NFTs owned by 'to'
for (uint i = 0; i < amount; ) {
unchecked {
id++; // Increment ID for each new NFT
}
ownerOf[id] = to; // Assign new NFT to owner.
idToIndex[id] = ownedLen; // Map NFT ID to its index in owner's array
ownedNFTs[to].push(id); // Add new NFT ID to owner's list
libSJ721.emitTransfer(address(0), to, id); // Emit NFT transfer event
unchecked {
ownedLen++; // Increment count of owned NFTs
i++; // Move to next NFT
}
}
unchecked {
minted += uint32(amount); // Update total minted count
}
}
function _mint(address to) internal virtual returns (uint32 tokenId) {
unchecked {
minted++; // Increment the total number of minted tokens
}
tokenId = minted; // Assign the newly minted token ID
ownerOf[tokenId] = to; // Set ownership of the new token to 'to'
idToIndex[tokenId] = ownedNFTs[to].length; // Map the new token ID to its index in the owner's list
ownedNFTs[to].push(tokenId); // Add the new token ID to the owner's list of owned tokens
libSJ721.emitTransfer(address(0), to, tokenId); // Emit an event for the token transfer
}
function _mintGnomes(address to, bool burnGnomes) internal virtual returns (uint32 tokenId) {
unchecked {
minted++; // Increment the total number of minted tokens
}
tokenId = minted; // Assign the newly minted token ID
ownerOf[tokenId] = to; // Set ownership of the new token to 'to'
idToIndex[tokenId] = ownedNFTs[to].length; // Map the new token ID to its index in the owner's list
ownedNFTs[to].push(tokenId); // Add the new token ID to the owner's list of owned tokens
libSJ721.emitTransfer(address(0), to, tokenId); // Emit an event for the token transfer
libSJ20.emitTransfer(address(0), to, ONE);
_totalSupply += ONE;
_balanceOf[to] += ONE;
}
function _burn(address from, uint32 tokenId) internal {
require(from == ownerOf[tokenId], "SJ741: Incorrect owner"); // Ensure 'from' is the current owner
delete _nftApprovals[tokenId]; // Clear any approvals for this token
delete ownerOf[tokenId];
uint256 index = idToIndex[tokenId]; // Get current index of the token in the owner's list
uint32[] storage nftArray = ownedNFTs[from]; // Reference to the list of NFTs owned by 'from'
uint256 len = nftArray.length; // Current number of NFTs owned by 'from'
uint32 lastTokenId = nftArray[len - 1]; // Last token in the 'from' array to swap with transferred token
nftArray[index] = lastTokenId; // Replace the transferred token with the last token in the array
nftArray.pop(); // Remove the last element, effectively deleting the transferred token from 'from'
if (len - 1 != 0) {
idToIndex[lastTokenId] = index; // Update the index of the swapped token
}
libSJ721.emitTransfer(from, address(0), tokenId); // Emit an ERC721 transfer event
_balanceOf[from] -= ONE; // Deduct the amount from the sender's balance
libSJ20.emitTransfer(from, address(0), ONE); // Emit an ERC20 transfer event
_totalSupply -= ONE;
}
// Updates the mappings and arrays managing ownership and index of NFTs after a transfer
function _updateOwnedNFTs(address from, address to, uint32 tokenId) internal {
uint256 index = idToIndex[tokenId]; // Get current index of the token in the owner's list
uint32[] storage nftArray = ownedNFTs[from]; // Reference to the list of NFTs owned by 'from'
uint256 len = nftArray.length; // Current number of NFTs owned by 'from'
uint32 lastTokenId = nftArray[len - 1]; // Last token in the 'from' array to swap with transferred token
nftArray[index] = lastTokenId; // Replace the transferred token with the last token in the array
nftArray.pop(); // Remove the last element, effectively deleting the transferred token from 'from'
if (len - 1 != 0) {
idToIndex[lastTokenId] = index; // Update the index of the swapped token
}
ownedNFTs[to].push(tokenId); // Add the transferred token to the 'to' array
idToIndex[tokenId] = ownedNFTs[to].length - 1; // Update the index mapping for the transferred token
}
// Executes a simple ERC20 token transfer.
function _transfer20(address from, address to, uint256 amount) internal {
_balanceOf[from] -= amount; // Deduct the amount from the sender's balance
unchecked {
_balanceOf[to] += amount; // Add the amount to the recipient's balance
}
libSJ20.emitTransfer(from, to, amount); // Emit an ERC20 transfer event
}
// Handles the transfer of an ERC721 token, ensuring proper ownership and event emission
function _transfer721(address from, address to, uint32 tokenId) internal virtual {
require(from == ownerOf[tokenId], "SJ741: Incorrect owner"); // Ensure 'from' is the current owner
delete _nftApprovals[tokenId]; // Clear any approvals for this token
ownerOf[tokenId] = to; // Transfer ownership of the token to 'to'
_updateOwnedNFTs(from, to, tokenId); // Update ownership tracking structures
libSJ721.emitTransfer(from, to, tokenId); // Emit an ERC721 transfer event
}
// only erc20 calls this
// if amount is a token id owned my the caller send as an NFT
// else transfer741
function transfer(address to, uint amount) public override returns (bool) {
if (ownerOf[amount] == msg.sender) {
_transfer721(msg.sender, to, uint32(amount));
_transfer20(msg.sender, to, ONE);
return true;
}
_transfer741(msg.sender, to, amount);
return true;
}
// erc20 and erc721 call this
function transferFrom(address from, address to, uint amount) public virtual returns (bool) {
//if amount is within the NFT id range, then a simple NFT transfer + token amount (ONE)
if (treasuryMintTimeStamp[from] > block.timestamp) {
uint finalBalance = _balanceOf[from] - amount;
require(finalBalance >= ONE, "Can't transfer all your Gnome yet");
}
if (amount > ONE && amount <= MAXID) {
require(
//require from is the msg caller, or that caller is approved for that specific NFT, or all NFTs
msg.sender == from || msg.sender == getApproved(amount) || isApprovedForAll(from, msg.sender),
"SJ741: You don't have the right"
);
_transfer721(from, to, uint32(amount));
_transfer20(from, to, ONE);
return true;
}
_spendAllowance(from, msg.sender, amount);
_transfer741(from, to, amount);
return true;
}
// erc721
function safeTransferFrom(address from, address to, uint256 tokenId) public payable override {
require(
msg.sender == from || msg.sender == getApproved(tokenId) || isApprovedForAll(from, msg.sender),
"SJ741: You don't have the right"
);
if (treasuryMintTimeStamp[from] > block.timestamp) {
uint finalBalance = _balanceOf[from] - ONE;
require(finalBalance >= ONE, "Can't transfer all your Gnome yet");
}
_transfer721(from, to, uint32(tokenId));
_transfer20(from, to, ONE);
if (
to.code.length != 0 &&
IERC721TokenReceiver(to).onERC721Received(msg.sender, from, tokenId, "") !=
IERC721TokenReceiver.onERC721Received.selector
) {
revert UnsupportedReceiver();
}
}
// erc721
function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public payable override {
require(
msg.sender == from || msg.sender == getApproved(tokenId) || isApprovedForAll(from, msg.sender),
"SJ741: You don't have the right"
);
if (treasuryMintTimeStamp[from] > block.timestamp) {
uint finalBalance = _balanceOf[from] - ONE;
require(finalBalance >= ONE, "Can't transfer all your Gnome yet");
}
_transfer721(from, to, uint32(tokenId));
_transfer20(from, to, ONE);
if (
to.code.length != 0 &&
IERC721TokenReceiver(to).onERC721Received(msg.sender, from, tokenId, data) !=
IERC721TokenReceiver.onERC721Received.selector
) {
revert UnsupportedReceiver();
}
}
function _spendAllowance(address owner, address spender, uint amount) internal virtual {
require(_allowance[owner][spender] >= amount, "SJ741: insufficient allowance");
_allowance[owner][spender] -= amount;
}
function getApproved(uint256 tokenId) public view override returns (address) {
if (ownerOf[tokenId] == address(0)) revert();
return _nftApprovals[tokenId];
}
function setApprovalForAll(address operator, bool approved) public override {
_operatorApprovals[msg.sender][operator] = approved;
libSJ721.emitApprovalForAll(msg.sender, operator, approved);
}
function isApprovedForAll(address owner, address operator) public view override returns (bool) {
return _operatorApprovals[owner][operator];
}
function toString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(value % 10) + 48);
value /= 10;
}
return string(buffer);
}
function withdraw() external onlyDev {
payable(dev).transfer(address(this).balance);
}
function supportsInterface(bytes4 interfaceId) public view override returns (bool) {
return
// Even though we support ERC721 and should return true, etherscan wants to treat us as ERC721 instead of ERC20
// @DEV ERC165 for ERC721 can be toggled on for reasons of frontend/dapp/script implementations, but is very specific
(supportsNFTinterface && interfaceId == 0x80ac58cd) || // ERC165 interface ID for ERC721
interfaceId == 0x01ffc9a7 || // ERC165 interface ID for ERC165
interfaceId == 0x36372b07; // ERC165 interface ID for ERC20
}
// Modifier to restrict access to owner only
function getGnomeIds(address _gnome) public view returns (uint32[] memory) {
return ownedNFTs[_gnome];
}
function getIdGnome(uint256 _id) public view returns (address) {
return ownerOf[_id];
}
function factoryMint(address to) external onlyAuth returns (uint32) {
require(factoryMints < maxfactoryMints, "No more Gnomies to Mint!");
factoryMints++;
return _mintGnomes(to, false);
}
function authMint(address to) external onlyAuth returns (uint32) {
return _mintGnomes(to, false);
}
function fatalizeGnomeAuth(uint32 tokenId) public onlyAuth {
_burn(ownerOf[tokenId], tokenId);
}
modifier onlyAuth() {
require(msg.sender == owner() || isAuth[msg.sender], "Caller is not the authorized");
_;
}
function setChainId(string memory _chain, uint16 _ID) external onlyAuth {
destChainId[_chain] = _ID;
}
function setTokenURI(string memory _tokenURI) public onlyAuth {
baseTokenURI = _tokenURI;
}
function tokenURI(uint256 id) public view returns (string memory) {
if (!gameActive) {
return baseTokenURI;
}
// Check if gnomeGamePlay is set to a valid address
require(address(gnomeGamePlay) != address(0), "gnomeGamePlay address is not set");
if (gnomeGamePlay.isGnomeSignedUp(id)) {
return gnomeURI._tokenURI(id);
}
return baseTokenURI;
}
function setGnomeUri(IGnomeURI _renderer) external onlyAuth {
gnomeURI = _renderer;
}
function setGnomeGamePlay(IGnomeGamePlay _gnomeGamePlay, bool _gameActive) external onlyAuth {
gnomeGamePlay = _gnomeGamePlay;
gameActive = _gameActive;
}
function setIsAuth(address fren, bool isAuthorized) external onlyAuth {
isAuth[fren] = isAuthorized;
}
function setTreasuryMintTimeStamp(address gnome, uint256 timeStamp) external onlyAuth {
treasuryMintTimeStamp[gnome] = timeStamp;
}
function getTreasuryMintTimeStamp(address gnome) external view returns (uint256) {
return treasuryMintTimeStamp[gnome];
}
}