Development of a Blockchain-Based Gaming System

MATERIALS

Overview

This project, hosted at https://github.com/DiplomaDefence/gamedev/, is being developed as a Diploma Project by the following students:

• Андронов Максим Дмитриевич (Student ID: 31590)
• Чивердин Эдуард Александрович (Student ID: 31583)
• Абилов Мирас (Student ID: 31176)

The goal is to create a Blockchain-Based Gaming System that utilizes Non-Fungible Tokens (NFTs) for in-game assets, enables secure transactions, and explores the economic potential of blockchain technology in gaming.

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Features

• NFT Integration: Use NFTs to represent unique in-game assets such as characters, skins, and weapons.
• Blockchain Transactions: Secure, decentralized transactions for in-game purchases and trades.
• Testing: Comprehensive testing strategies for both smart contracts and user interactions.
• Economic Insights: Analysis of the advantages and value of blockchain in the gaming ecosystem.

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Project Structure

project/
├── contracts/          # Smart contracts for NFT and game logic
├── tests/              # Test scripts for contracts and transactions
├── src/                # Frontend and backend application code
├── docs/               # Documentation for APIs and features
├── README.md           # Project overview and instructions
├── package.json        # Project dependencies
├── hardhat.config.js   # Configuration for the Hardhat development environment
└── .env                # Environment variables (e.g., private keys, API endpoints)

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Setup

Prerequisites

1. Node.js: Install the latest version.
2. Hardhat: Development environment for Ethereum.
3. Metamask: Browser wallet extension.
4. Blockchain Testnet: Use Polygon Mumbai, Binance Smart Chain Testnet, or Ethereum Goerli.

Installation Steps

1. Clone the repository:

   git clone https://github.com/DiplomaDefence/gamedev.git

2. Navigate to the project directory:

   cd gamedev

3. Install dependencies:

   npm install

4. Configure environment variables in .env:

   PRIVATE_KEY=<Your Private Key>
   INFURA_API_KEY=<Your Infura API Key>
   

5. Compile smart contracts:

   npx hardhat compile

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How to Use NFTs

NFT Overview

Non-Fungible Tokens (NFTs) are unique digital assets stored on the blockchain. In this system, NFTs are used to represent in-game items such as rare collectibles and characters.

Creating NFTs

Use the ERC-721 or ERC-1155 standards to mint NFTs. Example script:

const { ethers } = require("hardhat");

async function main() {
    const nftContract = await ethers.getContractFactory("GameNFT");
    const deployedNFT = await nftContract.deploy();
    await deployedNFT.deployed();
    console.log("NFT Contract deployed to:", deployedNFT.address);

    await deployedNFT.mint("0xYourWalletAddress", 1, "ipfs://YourMetadataLink");
    console.log("NFT Minted!");
}

main().catch((error) => {
    console.error(error);
    process.exitCode = 1;
});

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How to Use Transactions

Transaction Workflow

1. In-game Purchases: Players can use cryptocurrency to buy items.
2. Player Trades: Secure player-to-player trading through smart contracts.

Example contract for payments:

pragma solidity ^0.8.0;

contract GamePayment {
    function buyItem(address payable seller) public payable {
        require(msg.value > 0, "Payment must be greater than 0");
        seller.transfer(msg.value);
    }
}

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Testing the System

What to Test

• Smart Contracts: Ensure the logic for minting, transferring, and purchasing NFTs is correct.
• Frontend: Simulate user interactions and verify transaction workflows.
• Security: Check for vulnerabilities using tools like MythX or Slither.

Running Tests

npx hardhat test

Sample test script:

const { expect } = require("chai");

describe("GameNFT", function () {
    it("Should mint an NFT successfully", async function () {
        const GameNFT = await ethers.getContractFactory("GameNFT");
        const nft = await GameNFT.deploy();
        await nft.deployed();

        const mintTx = await nft.mint("0xYourWalletAddress", 1, "ipfs://metadata-link");
        await mintTx.wait();

        expect(await nft.ownerOf(1)).to.equal("0xYourWalletAddress");
    });
});

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NFT Technologies

• ERC-721: Standard for unique NFTs.
• ERC-1155: Multi-token standard for both fungible and non-fungible tokens.
• IPFS: Decentralized file storage for metadata.

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Economic Value and Advantages

Market Potential

• Blockchain gaming is transforming in-game asset ownership and monetization.
• Games like Axie Infinity and Gods Unchained showcase how NFTs create new revenue streams.

Advantages of Blockchain in Gaming

1. Ownership: Players have real ownership of in-game assets.
2. Transparency: Immutable transaction records ensure trust.
3. Security: Reduced risk of fraud or asset duplication.
4. Interoperability: NFTs can be used across different games.

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Recommendations for Early Developers

Developer-Friendly Networks

1. Polygon (MATIC): Low fees, fast processing, Ethereum-compatible.
2. Binance Smart Chain (BSC): Cost-effective, widely used.
3. Ethereum Testnets (Goerli, Rinkeby): Ideal for testing.

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Request for Comments

Feedback and suggestions are welcome for:

• Improving NFT features.
• Enhancing transaction workflows.
• Expanding testing and security measures.

Please submit feedback via GitHub issues or email us at [syrymzhakypbekov@gmail.com].

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Developers

• Андронов Максим Дмитриевич (31590)
• Чивердин Эдуард Александрович (31583)
• Абилов Мирас (31176)

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