🐟 DON'T FEED THE BEAST

A dynamic NFT (ERC721) project for the Monad testnet, where NFTs can level up by burning MON (the native token). This repository contains both the smart contract and a React-based frontend for interacting with the NFT.

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Table of Contents

• Features
• Smart Contract
• Frontend
• Project Structure
• Getting Started
  • Prerequisites
  • Smart Contract (Hardhat)
  • Frontend (React)
• Usage
• License

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Features

• 🪙 Mint a level 1 NFT by burning 0.1 MON (one per wallet)
• 🆙 Level up your NFT up to level 10 by burning more MON
• 💸 Level up cost: 0.1 MON base + (next level × 0.1 MON)
  • Level 2: 0.1 + 0.2 = 0.3 MON
  • Level 3: 0.1 + 0.3 = 0.4 MON
  • ...
  • Level 10: 0.1 + 1.0 = 1.1 MON
• 👤 Only the owner can level up their NFT
• 🔥 MON is burned on mint and level up
• 🖼️ Dynamic NFT images and metadata per level
• 🦊 MetaMask wallet integration in the frontend

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Smart Contract

• File: contracts/DynamicLevelNFT.sol

• Standard: ERC721

• Network: Monad testnet

• Main Functions:

  • mint(): Mint a new NFT (payable: 0.1 MON)
  • levelUp(tokenId): Level up your NFT (payable: see above)

• Events:

  • Minted(address to, uint256 tokenId)
  • LeveledUp(address owner, uint256 tokenId, uint256 newLevel)

  Deployed at: https://testnet.monadexplorer.com/token/0x8BCd20145E33f5fA82F431921af02A26613154DC

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Frontend

• Directory: frontend/
• Tech: React, ethers.js, MetaMask
• Main Features:
  • Connect wallet
  • Mint NFT
  • View NFT and its level
  • Level up NFT
  • Dynamic NFT image per level
• Contract address: Set in frontend/src/contract.js

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Project Structure

MonDNFT/
├── contracts/           # Solidity smart contracts
│   ├── DynamicLevelNFT.sol
│   └── Lock.sol
├── frontend/            # React frontend app
│   ├── src/
│   │   ├── App.js
│   │   ├── contract.js
│   │   ├── index.css
│   │   └── ...
│   └── public/
├── scripts/             # Deployment scripts
│   └── deploy.js
├── ignition/            # Hardhat Ignition deployment modules
│   └── modules/
├── test/                # Contract tests
├── hardhat.config.js    # Hardhat config
└── README.md            # This file

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Getting Started

Prerequisites

• Node.js (v16+ recommended)
• npm or yarn
• MetaMask browser extension
• Monad testnet access

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Smart Contract (Hardhat)

1. Install dependencies:

   npm install

2. Compile contracts:

   npx hardhat compile

3. Run tests:

   npx hardhat test

4. Deploy to Monad testnet:

   • Update your network config in hardhat.config.js
   • Run:

     npx hardhat run scripts/deploy.js --network <your-monad-testnet>

   • Or use Hardhat Ignition:

     npx hardhat ignition deploy ./ignition/modules/DynamicLevelNFT.js

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Frontend (React)

1. Install dependencies:

   cd frontend
   npm install

2. Start the app:

   npm start

   Open http://localhost:3000 in your browser.

3. Configure contract address:

   • Set your deployed contract address in src/contract.js

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Usage

• Connect your MetaMask wallet (Monad testnet)
• Mint your NFT by clicking "FEED THE BEAST (0.1 MON)"
• Level up your NFT by clicking "FEED THE BEAST (cost: X MON)"
• View your NFT and its current level and image

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License

This project is licensed under the MIT License.

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Acknowledgements

• Create React App
• ethers.js
• OpenZeppelin Contracts
• Monad testnet