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Update ContractNFTLowGasERC721A.sol
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@Machovsky
Machovsky authored Jun 12, 2022
1 parent 8ba5e79 commit d114639
Showing 1 changed file with 27 additions and 45 deletions.
72 changes: 27 additions & 45 deletions ContractNFTLowGasERC721A.sol
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Original file line number Diff line number Diff line change
Expand Up @@ -9,29 +9,28 @@ import 'erc721a/contracts/ERC721A.sol';

pragma solidity >=0.8.13 <0.9.0;

contract SampleNFTLowGas is ERC721A, Ownable, ReentrancyGuard { //Change contract name from SampleNFTLowGas
contract NFTcontractName is ERC721A, Ownable, ReentrancyGuard { //Change contract name from SampleNFTLowGas

using Strings for uint256;

// ================== Variables Start =======================

string public uri; //you don't change this
string public hiddenMetadataUri; //you don't change this
string public uriSuffix = ".json"; //you don't change this
uint256 public cost1 = 0 ether; //here you change phase 1 cost (for example first 1k for free, then 0.003eth each nft)
uint256 public cost2 = 0.003 ether; //here you change phase 2 cost
uint256 public supplyPhase1 = 1000; //change to your NFT supply for phase1
uint256 public supplyLimit = 3333; //change it to your total NFT supply
uint256 public maxMintAmountPerTxPhase1 = 2; //decide how many NFT's you want to mint with cost1
uint256 public maxMintAmountPerTxPhase2 = 8; //decide how many NFT's you want to mint with cost2
uint256 public maxLimitPerWallet = 10; //decide how many NFT's you want to let customers mint per wallet
bool public sale = true; //if false, then mint is paused. If true - mint is started
string public hiddenMetadataUri; //you don't change this
uint256 public cost1 = 0 ether; //here you change phase 1 cost (for example first 1k for free, then 0.004 eth each nft)
uint256 public cost2 = 0.004 ether; //here you change phase 2 cost
uint256 public supplyLimitPhase1 = 1111; //change to your NFT supply for phase1
uint256 public supplyLimit = 3333; //change it to your total NFT supply
uint256 public maxMintAmountPerTxPhase1 = 1; //decide how many NFT's you want to mint with cost1
uint256 public maxMintAmountPerTxPhase2 = 5; //decide how many NFT's you want to mint with cost2
uint256 public maxLimitPerWallet = 20; //decide how many NFT's you want to let customers mint per wallet
bool public sale = false; //if false, then mint is paused. If true - mint is started
bool public revealed = true; //when you want instant reveal, leave true.

// ================== Variables End =======================
// ================== Variables End =======================

// ================== Constructor Start =======================

constructor(
string memory _uri,
string memory _hiddenMetadataUri
Expand All @@ -40,36 +39,26 @@ contract SampleNFTLowGas is ERC721A, Ownable, ReentrancyGuard { //Change contrac
setHiddenMetadataUri(_hiddenMetadataUri);
}

// ================== Constructor End =======================

// ================== Mint Functions Start =======================

function UpdateCost(uint256 _mintAmount) internal view returns (uint256 _cost) {
function UpdateCost(uint256 _mintAmount) internal view returns (uint256 _cost) {

if (balanceOf(msg.sender) + _mintAmount <= maxMintAmountPerTxPhase1 && totalSupply() < supplyPhase1) {
return cost1;
}
if (balanceOf(msg.sender) + _mintAmount > maxMintAmountPerTxPhase1){
return cost2;
}
if (balanceOf(msg.sender) + _mintAmount <= maxMintAmountPerTxPhase1 && totalSupply() < supplyLimitPhase1) {
return cost1;
}
if (balanceOf(msg.sender) + _mintAmount <= maxMintAmountPerTxPhase2){
return cost2;
}
}

function Mint(uint256 _mintAmount) public payable {

//Normal requirements
// Normal requirements
require(sale, 'The Sale is paused!');
require(_mintAmount > 0 && _mintAmount <= maxLimitPerWallet, 'Invalid mint amount!');
require(_mintAmount > 0 && _mintAmount <= maxMintAmountPerTxPhase2, 'Invalid mint amount!');
require(totalSupply() + _mintAmount <= supplyLimit, 'Max supply exceeded!');
require(balanceOf(msg.sender) + _mintAmount <= maxLimitPerWallet, 'Max mint per wallet exceeded!');
if(balanceOf(msg.sender) == 0){
require(msg.value >= UpdateCost(_mintAmount) * (_mintAmount-maxMintAmountPerTxPhase1), 'Insufficient funds!');
}else{
require(msg.value >= UpdateCost(_mintAmount) * _mintAmount, 'Insufficient funds!');
}
require((balanceOf(msg.sender) + _mintAmount <= maxMintAmountPerTxPhase1 && totalSupply() < supplyPhase1) ||
(balanceOf(msg.sender) + _mintAmount <= maxMintAmountPerTxPhase2 && totalSupply() <= supplyPhase1), 'Max mint amount exceeded!');

//Mint

_safeMint(_msgSender(), _mintAmount);
}

Expand All @@ -78,10 +67,6 @@ contract SampleNFTLowGas is ERC721A, Ownable, ReentrancyGuard { //Change contrac
_safeMint(_receiver, _mintAmount);
}

// ================== Mint Functions End =======================

// ================== Set Functions Start =======================

function setRevealed(bool _state) public onlyOwner {
revealed = _state;
}
Expand All @@ -91,7 +76,7 @@ contract SampleNFTLowGas is ERC721A, Ownable, ReentrancyGuard { //Change contrac
}

function setHiddenMetadataUri(string memory _hiddenMetadataUri) public onlyOwner {
hiddenMetadataUri = _hiddenMetadataUri;
hiddenMetadataUri = _hiddenMetadataUri;
}

function setUriSuffix(string memory _uriSuffix) public onlyOwner {
Expand Down Expand Up @@ -132,15 +117,15 @@ contract SampleNFTLowGas is ERC721A, Ownable, ReentrancyGuard { //Change contrac
(bool os, ) = payable(owner()).call{value: address(this).balance}("");
require(os);
}

function price(uint256 _mintAmount) public view returns (uint256){
if (balanceOf(msg.sender) + _mintAmount <= maxMintAmountPerTxPhase1 && totalSupply() < supplyPhase1) {
if (balanceOf(msg.sender) + _mintAmount <= maxMintAmountPerTxPhase1 && totalSupply() <supplyLimitPhase1) {
return cost1;
}
if (balanceOf(msg.sender) + _mintAmount <= maxLimitPerWallet && totalSupply() >= supplyPhase1){
if (balanceOf(msg.sender) + _mintAmount <= maxMintAmountPerTxPhase2 && totalSupply() < supplyLimit){
return cost2;
}
return cost2;
return cost2;
}

function tokensOfOwner(address owner) external view returns (uint256[] memory) {
Expand Down Expand Up @@ -185,7 +170,4 @@ function tokensOfOwner(address owner) external view returns (uint256[] memory) {
function _baseURI() internal view virtual override returns (string memory) {
return uri;
}

// ================== Read Functions End =======================

}

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