Overview
APE Balance
APE Value
$0.00More Info
Private Name Tags
ContractCreator
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Contract Source Code Verified (Exact Match)
Contract Name:
TransferToNull
Compiler Version
v0.8.27+commit.40a35a09
Optimization Enabled:
Yes with 200 runs
Other Settings:
paris EvmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity ^0.8.0; interface IERC721A { function ownerOf(uint256 tokenId) external view returns (address); function approve(address to, uint256 tokenId) external; function transferFrom(address from, address to, uint256 tokenId) external; function burn(uint256 tokenId) external; } contract TransferToNull { address public nftContractAddress; // Track the number of NFTs burned by each address mapping(address => uint256) public burnedNFTs; // Enum for tier levels enum Tier { None, Tier1, Tier2, Tier3 } // Mapping to store user's tier level mapping(address => Tier) public userTier; // Arrays to store addresses by tier address[] public tier1Addresses; address[] public tier2Addresses; address[] public tier3Addresses; // Constructor to set the NFT contract address constructor(address _nftContractAddress) { nftContractAddress = _nftContractAddress; } // Function to get the current tier of an address function getTier(address user) public view returns (Tier) { return userTier[user]; } // Function to transfer multiple NFTs to the null address (0x0) function transferToNull(uint256[] calldata tokenIds) external { IERC721A nft = IERC721A(nftContractAddress); for (uint256 i = 0; i < tokenIds.length; i++) { uint256 tokenId = tokenIds[i]; // Ensure the caller owns the token address owner = nft.ownerOf(tokenId); require(owner == msg.sender, "You must own the token to transfer it"); // Approve the transfer to this contract nft.approve(address(this), tokenId); // Transfer the token to the null address (0x0) nft.transferFrom(owner, address(0), tokenId); // Track the number of NFTs burned by the caller burnedNFTs[msg.sender]++; // Update the user's tier based on the number of NFTs burned updateTier(msg.sender); } } // Function to update the tier of the user based on the number of NFTs burned function updateTier(address user) internal { uint256 burnedCount = burnedNFTs[user]; // Check if the user needs to be moved to a higher or lower tier if (burnedCount >= 25) { if (userTier[user] != Tier.Tier1) { removeFromTier(userTier[user], user); tier1Addresses.push(user); userTier[user] = Tier.Tier1; } } else if (burnedCount >= 15) { if (userTier[user] != Tier.Tier2) { removeFromTier(userTier[user], user); tier2Addresses.push(user); userTier[user] = Tier.Tier2; } } else if (burnedCount >= 5) { if (userTier[user] != Tier.Tier3) { removeFromTier(userTier[user], user); tier3Addresses.push(user); userTier[user] = Tier.Tier3; } } else { if (userTier[user] != Tier.None) { removeFromTier(userTier[user], user); userTier[user] = Tier.None; } } } // Helper function to remove an address from the previous tier array function removeFromTier(Tier oldTier, address user) internal { if (oldTier == Tier.Tier1) { removeAddressFromArray(tier1Addresses, user); } else if (oldTier == Tier.Tier2) { removeAddressFromArray(tier2Addresses, user); } else if (oldTier == Tier.Tier3) { removeAddressFromArray(tier3Addresses, user); } } // Helper function to remove an address from an array function removeAddressFromArray(address[] storage tierArray, address user) internal { for (uint256 i = 0; i < tierArray.length; i++) { if (tierArray[i] == user) { tierArray[i] = tierArray[tierArray.length - 1]; tierArray.pop(); break; } } } // Function to get all addresses of users in Tier 1 function getTier1Addresses() public view returns (address[] memory) { return tier1Addresses; } // Function to get all addresses of users in Tier 2 function getTier2Addresses() public view returns (address[] memory) { return tier2Addresses; } // Function to get all addresses of users in Tier 3 function getTier3Addresses() public view returns (address[] memory) { return tier3Addresses; } // Function to check how many NFTs an address has burned function getBurnedCount(address user) public view returns (uint256) { return burnedNFTs[user]; } }
{ "optimizer": { "enabled": true, "runs": 200 }, "evmVersion": "paris", "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
Contract Security Audit
- No Contract Security Audit Submitted- Submit Audit Here
[{"inputs":[{"internalType":"address","name":"_nftContractAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"burnedNFTs","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getBurnedCount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"user","type":"address"}],"name":"getTier","outputs":[{"internalType":"enum TransferToNull.Tier","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTier1Addresses","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTier2Addresses","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getTier3Addresses","outputs":[{"internalType":"address[]","name":"","type":"address[]"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"nftContractAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tier1Addresses","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tier2Addresses","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"tier3Addresses","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"tokenIds","type":"uint256[]"}],"name":"transferToNull","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"userTier","outputs":[{"internalType":"enum TransferToNull.Tier","name":"","type":"uint8"}],"stateMutability":"view","type":"function"}]
Contract Creation Code
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Deployed Bytecode
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000019e79f9db731b92f581d3ef0e6328ae918bb88ce
-----Decoded View---------------
Arg [0] : _nftContractAddress (address): 0x19E79f9db731b92f581D3Ef0E6328ae918bb88CE
-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 00000000000000000000000019e79f9db731b92f581d3ef0e6328ae918bb88ce
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