goblin

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.9;

import "@openzeppelin/contracts/token/ERC721/ERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/interfaces/IERC2981.sol";
import "@openzeppelin/contracts/utils/Counters.sol";
import "@openzeppelin/contracts/utils/Address.sol";

contract ORCTownRoad is ERC721, IERC2981, ReentrancyGuard, Ownable {
  using Counters for Counters.Counter;

  constructor(string memory customBaseURI_) ERC721("ORC Town Road", "OTR") {
    customBaseURI = customBaseURI_;
  }

  /** MINTING LIMITS **/

  mapping(address => uint256) private mintCountMap;

  mapping(address => uint256) private allowedMintCountMap;

  uint256 public constant MINT_LIMIT_PER_WALLET = 2;

  function allowedMintCount(address minter) public view returns (uint256) {
    return MINT_LIMIT_PER_WALLET - mintCountMap[minter];
  }

  function updateMintCount(address minter, uint256 count) private {
    mintCountMap[minter] += count;
  }

  /** MINTING **/

  uint256 public constant MAX_SUPPLY = 6969;

  uint256 public constant MAX_MULTIMINT = 2;

  Counters.Counter private supplyCounter;

  function mint(uint256 count) public nonReentrant {
    require(saleIsActive, "Sale not active");

    if (allowedMintCount(msg.sender) >= count) {
      updateMintCount(msg.sender, count);
    } else {
      revert("Minting limit exceeded");
    }

    require(totalSupply() + count - 1 < MAX_SUPPLY, "Exceeds max supply");

    require(count <= MAX_MULTIMINT, "Mint at most 2 at a time");

    for (uint256 i = 0; i < count; i++) {
      _mint(msg.sender, totalSupply());

      supplyCounter.increment();
    }
  }

  function totalSupply() public view returns (uint256) {
    return supplyCounter.current();
  }

  /** ACTIVATION **/

  bool public saleIsActive = false;

  function setSaleIsActive(bool saleIsActive_) external onlyOwner {
    saleIsActive = saleIsActive_;
  }

  /** URI HANDLING **/

  string private customBaseURI;

  function setBaseURI(string memory customBaseURI_) external onlyOwner {
    customBaseURI = customBaseURI_;
  }

  function _baseURI() internal view virtual override returns (string memory) {
    return customBaseURI;
  }

  function tokenURI(uint256 tokenId) public view override
    returns (string memory)
  {
    return string(abi.encodePacked(super.tokenURI(tokenId), ".json"));
  }

  /** PAYOUT **/

  function withdraw() public nonReentrant {
    uint256 balance = address(this).balance;

    Address.sendValue(payable(owner()), balance);
  }

  /** ROYALTIES **/

  function royaltyInfo(uint256, uint256 salePrice) external view override
    returns (address receiver, uint256 royaltyAmount)
  {
    return (address(this), (salePrice * 750) / 10000);
  }

  function supportsInterface(bytes4 interfaceId)
    public
    view
    virtual
    override(ERC721, IERC165)
    returns (bool)
  {
    return (
      interfaceId == type(IERC2981).interfaceId ||
      super.supportsInterface(interfaceId)
    );
  }
}

// Contract created with Studio 721 v1.5.0
// https://721.so