unchain-tech / eth-nft-game Goto Github PK
View Code? Open in Web Editor NEWHPや攻撃力を付与したNFTキャラクターを作成し、遊べる対戦ゲームアプリ
Home Page: https://app.unchain.tech/learn/ETH-NFT-Game
License: MIT License
HPや攻撃力を付与したNFTキャラクターを作成し、遊べる対戦ゲームアプリ
Home Page: https://app.unchain.tech/learn/ETH-NFT-Game
License: MIT License
in Section1 - Lesson 5
Counters.sol was deprecated on openzeppelin v5.0.1.
So, need to use Math.sol instead of Counters.sol.
https://github.com/OpenZeppelin/openzeppelin-contracts/blob/v5.0.1/contracts/utils/math/Math.sol
old MyEpicGame.sol
import "@openzeppelin/contracts/utils/Counters.sol";
------
using Counters for Counters.Counter;
Counters.Counter private _tokenIds;
------
_tokenIds.increment();
new MyEpicGame.sol
import "@openzeppelin/contracts/utils/math/Math.sol";
-----
using Math for uint256;
uint256 private _tokenIds;
-----
(bool retFlg, uint256 retTokenIds) = _tokenIds.tryAdd(1);
if (!retFlg) {
revert ErrorHandling;
}
_tokenIds = retTokenIds;
#4 が完了次第、レポジトリを削除
client/package.json
before 4.0.3
"react-scripts": "4.0.3",
after 5.0.1
"react-scripts": "5.0.1",
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.