// SPDX-License-Identifier: MIT// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)pragmasolidity ^0.8.0;/**
* @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.
*/abstractcontractContext{
function_msgSender() internalviewvirtualreturns (address) {
returnmsg.sender;
}
function_msgData() internalviewvirtualreturns (bytescalldata) {
returnmsg.data;
}
}
// SPDX-License-Identifier: MITpragmasolidity ^0.8.19;/*
888b d888 888 888 888 888 888b d888 d8b 888 888 888 .d8888b.
8888b d8888 888 888 888 888 8888b d8888 Y8P 888 888 888 d88P Y88b
88888b.d88888 888 888 888 888 88888b.d88888 888 888 888 888
888Y88888P888 .d88b. 888888 8888b. 88888b. .d88b. 888 888888 .d8888b 888Y88888P888 888 88888b. 888888 Y88b d88P .d88P
888 Y888P 888 d8P Y8b 888 "88b 888 "88b d88""88b 888 888 88K 888 Y888P 888 888 888 "88b 888 Y88b d88P .od888P"
888 Y8P 888 88888888 888 .d888888 888 888 888 888 888 888 "Y8888b. 888 Y8P 888 888 888 888 888 Y88o88P d88P"
888 " 888 Y8b. Y88b. 888 888 888 d88P Y88..88P 888 Y88b. X88 888 " 888 888 888 888 Y88b. Y888P 888"
888 888 "Y8888 "Y888 "Y888888 88888P" "Y88P" 888 "Y888 88888P' 888 888 888 888 888 "Y888 Y8P 888888888
*/import"@openzeppelin/contracts/access/Ownable.sol";
import"@openzeppelin/contracts/security/ReentrancyGuard.sol";
import"./IMetabolts.sol";
contractMetaboltsMintV2isOwnable, ReentrancyGuard{
IMetabolts immutablepublic nftContract;
boolpublic isPublicMint =true;
uint256public publicPrice =0.08ether;
uint256public publicMaxMintLimit =30;
eventMintPublic(addressindexed _account, uint256 _count);
constructor(address _nftAddress){
nftContract = IMetabolts(_nftAddress);
}
receive() payableexternal{
}
// @dev Withdraws ethers// @param _walletAddress The wallet addressfunctionwithdraw(address _walletAddress) externalonlyOwner{
uint256 balance =address(this).balance;
payable(_walletAddress).transfer(balance);
}
// @dev Public Mints NFTs// @param _amount The amount of NFTsfunctionmintPublic(uint256 _amount) payableexternalnonReentrant{
require(isPublicMint, "MetaboltsMintV2: public mint is not open");
require(_amount >0&& _amount <= publicMaxMintLimit, "MetaboltsMintV2: invalid amount");
require(msg.value>= (publicPrice*_amount), "MetaboltsMintV2: invalid value");
nftContract.mintMTBT(msg.sender, _amount, 0);
emit MintPublic(msg.sender, _amount);
}
function_getTotalMinted() internalviewreturns(uint256){
return nftContract.reserveCount()+nftContract.privateCount()+nftContract.mintIndex();
}
// @dev Returns the status of the metabolts// @return The status of the metaboltsfunctiongetMetaboltsMintStatus() externalviewreturns(bool, uint256){
uint256 totalMinted = _getTotalMinted();
return (isPublicMint, totalMinted);
}
// @dev Sets the mint price// @param _publicPrice The public pricefunctionsetMintPrice(uint256 _publicPrice) externalonlyOwner{
publicPrice = _publicPrice;
}
// @dev Sets the stage// @param _isPublicMint The activation of the public mintfunctionsetStage(bool _isPublicMint) externalonlyOwner{
isPublicMint = _isPublicMint;
}
// @dev Sets the max mint limit// @param _maxMintLimit The max mint limit per tx of the public mintfunctionsetMaxMintLimit(uint256 _maxMintLimit) externalonlyOwner{
publicMaxMintLimit = _maxMintLimit;
}
}
Contract Source Code
File 4 of 5: Ownable.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)pragmasolidity ^0.8.0;import"../utils/Context.sol";
/**
* @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.
*/abstractcontractOwnableisContext{
addressprivate _owner;
eventOwnershipTransferred(addressindexed previousOwner, addressindexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/constructor() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/modifieronlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/functionowner() publicviewvirtualreturns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/function_checkOwner() internalviewvirtual{
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @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.
*/functionrenounceOwnership() publicvirtualonlyOwner{
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/functiontransferOwnership(address newOwner) publicvirtualonlyOwner{
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) internalvirtual{
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
Contract Source Code
File 5 of 5: ReentrancyGuard.sol
// SPDX-License-Identifier: MIT// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)pragmasolidity ^0.8.0;/**
* @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].
*/abstractcontractReentrancyGuard{
// 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.uint256privateconstant _NOT_ENTERED =1;
uint256privateconstant _ENTERED =2;
uint256private _status;
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.
*/modifiernonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function_nonReentrantBefore() private{
// On the first call to nonReentrant, _status will be _NOT_ENTEREDrequire(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// 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() internalviewreturns (bool) {
return _status == _ENTERED;
}
}