Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta

More Options

• Similar
• Submit Audit
• Compare

// SPDX-License-Identifier: GPL-3.0

/// @title Plutocats Seeder
/// Includes modifications for new traits
/// Based on Nouns https://github.com/nounsDAO/nouns-monorepo/blob/master/packages/nouns-contracts/contracts/NounsSeeder.sol

pragma solidity >=0.8.0;

import {IPlutocatsSeeder} from "./interfaces/IPlutocatsSeeder.sol";
import {IPlutocatsDescriptorMinimal} from "./interfaces/IPlutocatsDescriptorMinimal.sol";

contract PlutocatsSeeder is IPlutocatsSeeder {
    /// Generate a pseudo-random seed for a given tokenId.
    function generateSeed(uint256 tokenId, IPlutocatsDescriptorMinimal descriptor)
        external
        view
        override
        returns (Seed memory)
    {
        uint256 pseudorandomness = uint256(keccak256(abi.encodePacked(blockhash(block.number - 1), tokenId)));

        uint256 backgroundCount = descriptor.backgroundCount();
        uint256 bodyCount = descriptor.bodyCount();
        uint256 accessoryCount = descriptor.accessoryCount();
        uint256 headCount = descriptor.headCount();
        uint256 eyesCount = descriptor.eyesCount();
        uint256 glassesCount = descriptor.glassesCount();

        return Seed({
            background: uint48(uint48(pseudorandomness) % backgroundCount),
            body: uint48(uint48(pseudorandomness >> 48) % bodyCount),
            accessory: uint48(uint48(pseudorandomness >> 96) % accessoryCount),
            head: uint48(uint48(pseudorandomness >> 144) % headCount),
            eyes: uint48(uint48(pseudorandomness >> 192) % eyesCount),
            glasses: uint48(uint48(pseudorandomness) % glassesCount)
        });
    }
}

// SPDX-License-Identifier: GPL-3.0

/// @title Interface for Plutocats Descriptor Minimal

pragma solidity >=0.8.0;

import {IPlutocatsSeeder} from "./IPlutocatsSeeder.sol";

interface IPlutocatsDescriptorMinimal {
    ///
    /// USED BY TOKEN
    ///
    function tokenURI(uint256 tokenId, IPlutocatsSeeder.Seed memory seed) external view returns (string memory);
    function dataURI(uint256 tokenId, IPlutocatsSeeder.Seed memory seed) external view returns (string memory);

    ///
    /// USED BY SEEDER
    ///
    function backgroundCount() external view returns (uint256);
    function bodyCount() external view returns (uint256);
    function accessoryCount() external view returns (uint256);
    function headCount() external view returns (uint256);
    function eyesCount() external view returns (uint256);
    function glassesCount() external view returns (uint256);
}

// SPDX-License-Identifier: GPL-3.0

/// @title Interface for Plutocats Seeder

pragma solidity >=0.8.0;

import {IPlutocatsDescriptorMinimal} from "./IPlutocatsDescriptorMinimal.sol";

interface IPlutocatsSeeder {
    struct Seed {
        uint48 background;
        uint48 body;
        uint48 accessory;
        uint48 head;
        uint48 eyes;
        uint48 glasses;
    }

    function generateSeed(uint256 tokenId, IPlutocatsDescriptorMinimal descriptor)
        external
        view
        returns (Seed memory);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"uint256","name":"tokenId","type":"uint256"},{"internalType":"contract IPlutocatsDescriptorMinimal","name":"descriptor","type":"address"}],"name":"generateSeed","outputs":[{"components":[{"internalType":"uint48","name":"background","type":"uint48"},{"internalType":"uint48","name":"body","type":"uint48"},{"internalType":"uint48","name":"accessory","type":"uint48"},{"internalType":"uint48","name":"head","type":"uint48"},{"internalType":"uint48","name":"eyes","type":"uint48"},{"internalType":"uint48","name":"glasses","type":"uint48"}],"internalType":"struct IPlutocatsSeeder.Seed","name":"","type":"tuple"}],"stateMutability":"view","type":"function"}]

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