├── .prettierrc
├── .solhintignore
├── .npmignore
├── .eslintignore
├── frontend
    ├── src
    │   ├── react-app-env.d.ts
    │   ├── components
    │   │   ├── ui
    │   │   │   └── Brand.tsx
    │   │   ├── casinoGames
    │   │   │   └── Blackjack
    │   │   │   │   ├── Blackjack.css
    │   │   │   │   └── Blackjack.tsx
    │   │   ├── ClaimChips.tsx
    │   │   └── WalletConnector.tsx
    │   ├── utils
    │   │   ├── types.ts
    │   │   ├── environment.ts
    │   │   ├── connectors.ts
    │   │   ├── provider.ts
    │   │   └── hooks.ts
    │   ├── setupTests.ts
    │   ├── App.test.tsx
    │   ├── index.css
    │   ├── index.tsx
    │   ├── reportWebVitals.ts
    │   ├── pages
    │   │   ├── CasinoGame.tsx
    │   │   ├── LandingPage.tsx
    │   │   └── RoulettePage.tsx
    │   ├── App.tsx
    │   ├── BlackJack
    │   │   ├── style.css
    │   │   ├── index.html
    │   │   └── blackjack.js
    │   ├── App.css
    │   ├── hooks
    │   │   └── useRoulette.ts
    │   └── logo.svg
    ├── types
    │   └── react-free-playing-cards
    │   │   └── index.d.ts
    ├── public
    │   ├── logo.png
    │   ├── robots.txt
    │   ├── favicon.ico
    │   ├── logo192.png
    │   ├── logo512.png
    │   ├── manifest.json
    │   └── index.html
    ├── .env.example
    ├── .gitignore
    ├── tsconfig.json
    ├── package.json
    └── README.md
├── .prettierignore
├── .gitignore
├── .solhint.json
├── tsconfig.json
├── .env.example
├── .github
    └── workflows
    │   └── hardhat.yml
├── .eslintrc.js
├── hardhat.config.ts
├── package.json
├── test
    └── index.ts
├── contracts
    ├── Chip.sol
    ├── Casino.sol
    ├── CasinoGame.sol
    ├── Roulette.sol
    └── Blackjack.sol
├── scripts
    └── deploy.ts
├── CODE_OF_CONDUCT.md
├── PROPOSAL.md
├── README.md
└── LICENSE


/.prettierrc:
--------------------------------------------------------------------------------
1 | {}
2 | 


--------------------------------------------------------------------------------
/.solhintignore:
--------------------------------------------------------------------------------
1 | node_modules
2 | 


--------------------------------------------------------------------------------
/.npmignore:
--------------------------------------------------------------------------------
1 | hardhat.config.ts
2 | scripts
3 | test
4 | 


--------------------------------------------------------------------------------
/.eslintignore:
--------------------------------------------------------------------------------
1 | node_modules
2 | artifacts
3 | cache
4 | coverage
5 | 


--------------------------------------------------------------------------------
/frontend/src/react-app-env.d.ts:
--------------------------------------------------------------------------------
1 | /// <reference types="react-scripts" />
2 | 


--------------------------------------------------------------------------------
/.prettierignore:
--------------------------------------------------------------------------------
1 | node_modules
2 | artifacts
3 | cache
4 | coverage*
5 | gasReporterOutput.json
6 | 


--------------------------------------------------------------------------------
/frontend/types/react-free-playing-cards/index.d.ts:
--------------------------------------------------------------------------------
1 | declare module 'react-free-playing-cards/lib/TcN';


--------------------------------------------------------------------------------
/frontend/public/logo.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jweiss0/OSS-CryptoCasino/HEAD/frontend/public/logo.png


--------------------------------------------------------------------------------
/frontend/public/robots.txt:
--------------------------------------------------------------------------------
1 | # https://www.robotstxt.org/robotstxt.html
2 | User-agent: *
3 | Disallow:
4 | 


--------------------------------------------------------------------------------
/frontend/public/favicon.ico:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jweiss0/OSS-CryptoCasino/HEAD/frontend/public/favicon.ico


--------------------------------------------------------------------------------
/frontend/public/logo192.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jweiss0/OSS-CryptoCasino/HEAD/frontend/public/logo192.png


--------------------------------------------------------------------------------
/frontend/public/logo512.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/jweiss0/OSS-CryptoCasino/HEAD/frontend/public/logo512.png


--------------------------------------------------------------------------------
/frontend/src/components/ui/Brand.tsx:
--------------------------------------------------------------------------------
1 | export const Brand = () => {
2 |   return <span className="brand">cryptocasino</span>;
3 | };
4 | 


--------------------------------------------------------------------------------
/.gitignore:
--------------------------------------------------------------------------------
 1 | node_modules
 2 | .env
 3 | coverage
 4 | coverage.json
 5 | typechain
 6 | 
 7 | #Hardhat files
 8 | cache
 9 | artifacts
10 | 


--------------------------------------------------------------------------------
/.solhint.json:
--------------------------------------------------------------------------------
1 | {
2 |   "extends": "solhint:recommended",
3 |   "rules": {
4 |     "compiler-version": ["error", "^0.8.0"],
5 |     "func-visibility": ["warn", { "ignoreConstructors": true }]
6 |   }
7 | }
8 | 


--------------------------------------------------------------------------------
/frontend/src/utils/types.ts:
--------------------------------------------------------------------------------
1 | export interface BlackjackHand {
2 |     isBust: boolean;
3 |     isBlackjack: boolean;
4 |     isDoubledDown: boolean;
5 |     fromSplit: boolean;
6 |     bet: string;
7 |     cVals: string[];
8 |     cSuits: string[];
9 | }


--------------------------------------------------------------------------------
/frontend/src/utils/environment.ts:
--------------------------------------------------------------------------------
1 | export const CasinoContractAddr = process.env.REACT_APP_CASINO_CONTRACT_ADDR;
2 | export const BlackjackContractAddr = process.env.REACT_APP_BLACKJACK_CONTRACT_ADDR;
3 | export const ChipContractAddr = process.env.REACT_APP_CHIP_CONTRACT_ADDR;


--------------------------------------------------------------------------------
/frontend/src/setupTests.ts:
--------------------------------------------------------------------------------
1 | // jest-dom adds custom jest matchers for asserting on DOM nodes.
2 | // allows you to do things like:
3 | // expect(element).toHaveTextContent(/react/i)
4 | // learn more: https://github.com/testing-library/jest-dom
5 | import '@testing-library/jest-dom';
6 | 


--------------------------------------------------------------------------------
/frontend/.env.example:
--------------------------------------------------------------------------------
1 | REACT_APP_CASINO_CONTRACT_ADDR=0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1
2 | REACT_APP_BLACKJACK_CONTRACT_ADDR=0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1
3 | REACT_APP_CHIP_CONTRACT_ADDR=0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1


--------------------------------------------------------------------------------
/tsconfig.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "target": "es2018",
 4 |     "module": "commonjs",
 5 |     "strict": true,
 6 |     "esModuleInterop": true,
 7 |     "outDir": "dist",
 8 |     "declaration": true
 9 |   },
10 |   "include": ["./scripts", "./test", "./typechain"],
11 |   "files": ["./hardhat.config.ts"]
12 | }
13 | 


--------------------------------------------------------------------------------
/frontend/src/App.test.tsx:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import { render, screen } from '@testing-library/react';
 3 | import App from './App';
 4 | 
 5 | test('renders learn react link', () => {
 6 |   render(<App />);
 7 |   const linkElement = screen.getByText(/learn react/i);
 8 |   expect(linkElement).toBeInTheDocument();
 9 | });
10 | 


--------------------------------------------------------------------------------
/.env.example:
--------------------------------------------------------------------------------
1 | ETHERSCAN_API_KEY=ABC123ABC123ABC123ABC123ABC123ABC1
2 | MUMBAI_URL=https://polygon-mumbai.g.alchemy.com/v2/<YOUR ALCHEMY KEY>
3 | MUMBAI_PRIVATE_KEY=0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1
4 | CASINO_CONTRACT_ADDR=0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1
5 | BLACKJACK_CONTRACT_ADDR=0xabc123abc123abc123abc123abc123abc123abc123abc123abc123abc123abc1


--------------------------------------------------------------------------------
/frontend/.gitignore:
--------------------------------------------------------------------------------
 1 | # See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
 2 | 
 3 | # dependencies
 4 | /node_modules
 5 | /.pnp
 6 | .pnp.js
 7 | 
 8 | # testing
 9 | /coverage
10 | 
11 | # production
12 | /build
13 | 
14 | # misc
15 | .DS_Store
16 | .env.local
17 | .env.development.local
18 | .env.test.local
19 | .env.production.local
20 | 
21 | npm-debug.log*
22 | yarn-debug.log*
23 | yarn-error.log*
24 | 


--------------------------------------------------------------------------------
/frontend/src/index.css:
--------------------------------------------------------------------------------
 1 | body {
 2 |   margin: 0;
 3 |   font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
 4 |     'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
 5 |     sans-serif;
 6 |   -webkit-font-smoothing: antialiased;
 7 |   -moz-osx-font-smoothing: grayscale;
 8 | }
 9 | 
10 | code {
11 |   font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New',
12 |     monospace;
13 | }
14 | 


--------------------------------------------------------------------------------
/frontend/src/index.tsx:
--------------------------------------------------------------------------------
 1 | import React from 'react';
 2 | import ReactDOM from 'react-dom';
 3 | import './index.css';
 4 | import App from './App';
 5 | import { Web3ReactProvider } from '@web3-react/core';
 6 | import { getProvider } from './utils/provider';
 7 | 
 8 | ReactDOM.render(
 9 |   <React.StrictMode>
10 |     <Web3ReactProvider getLibrary={getProvider}>
11 |       <App/>
12 |     </Web3ReactProvider>
13 |   </React.StrictMode>,
14 |   document.getElementById('root')
15 | );


--------------------------------------------------------------------------------
/frontend/src/reportWebVitals.ts:
--------------------------------------------------------------------------------
 1 | import { ReportHandler } from 'web-vitals';
 2 | 
 3 | const reportWebVitals = (onPerfEntry?: ReportHandler) => {
 4 |   if (onPerfEntry && onPerfEntry instanceof Function) {
 5 |     import('web-vitals').then(({ getCLS, getFID, getFCP, getLCP, getTTFB }) => {
 6 |       getCLS(onPerfEntry);
 7 |       getFID(onPerfEntry);
 8 |       getFCP(onPerfEntry);
 9 |       getLCP(onPerfEntry);
10 |       getTTFB(onPerfEntry);
11 |     });
12 |   }
13 | };
14 | 
15 | export default reportWebVitals;
16 | 


--------------------------------------------------------------------------------
/frontend/src/components/casinoGames/Blackjack/Blackjack.css:
--------------------------------------------------------------------------------
 1 | .blackjack-page {
 2 |     padding-top: 100px;
 3 |     padding-bottom: 100px;
 4 | }
 5 | 
 6 | .game-btn {
 7 |     color: white;
 8 |     font-family: "Righteous", cursive;
 9 | }
10 | 
11 | .btn-dec {
12 |     background-color: #D3455B;
13 | }
14 | 
15 | .btn-inc {
16 |     background-color: #207868;
17 | }
18 | 
19 | .card-list {
20 |     position: relative;
21 |     display: flex;
22 | }
23 | 
24 | .card {
25 |     display: inline-block;
26 |     height: 200px;
27 | }


--------------------------------------------------------------------------------
/.github/workflows/hardhat.yml:
--------------------------------------------------------------------------------
 1 | name: Hardhat Compile & Tests
 2 | 
 3 | on: [push, pull_request]
 4 | 
 5 | jobs:
 6 |   build:
 7 |     runs-on: ubuntu-latest
 8 |     steps:
 9 |     - uses: actions/checkout@v3
10 |     
11 |     - name: Use Node.js 16.x
12 |       uses: actions/setup-node@v3
13 |       with:
14 |         node-version: 16.x
15 |         
16 |     - name: Upgrade NPM
17 |       run: npm install -g npm
18 | 
19 |     - name: Install Dependencies
20 |       run: npm ci
21 |     
22 |     - name: Compile Contracts
23 |       run: npx hardhat compile
24 | 
25 |     - name: Run Tests
26 |       run: npx hardhat test
27 | 


--------------------------------------------------------------------------------
/frontend/public/manifest.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "short_name": "React App",
 3 |   "name": "Create React App Sample",
 4 |   "icons": [
 5 |     {
 6 |       "src": "favicon.ico",
 7 |       "sizes": "64x64 32x32 24x24 16x16",
 8 |       "type": "image/x-icon"
 9 |     },
10 |     {
11 |       "src": "logo192.png",
12 |       "type": "image/png",
13 |       "sizes": "192x192"
14 |     },
15 |     {
16 |       "src": "logo512.png",
17 |       "type": "image/png",
18 |       "sizes": "512x512"
19 |     }
20 |   ],
21 |   "start_url": ".",
22 |   "display": "standalone",
23 |   "theme_color": "#000000",
24 |   "background_color": "#ffffff"
25 | }
26 | 


--------------------------------------------------------------------------------
/.eslintrc.js:
--------------------------------------------------------------------------------
 1 | module.exports = {
 2 |   env: {
 3 |     browser: false,
 4 |     es2021: true,
 5 |     mocha: true,
 6 |     node: true,
 7 |   },
 8 |   plugins: ["@typescript-eslint"],
 9 |   extends: [
10 |     "standard",
11 |     "plugin:prettier/recommended",
12 |     "plugin:node/recommended",
13 |   ],
14 |   parser: "@typescript-eslint/parser",
15 |   parserOptions: {
16 |     ecmaVersion: 12,
17 |   },
18 |   rules: {
19 |     "node/no-unsupported-features/es-syntax": [
20 |       "error",
21 |       { ignores: ["modules"] },
22 |     ],
23 |     "prettier/prettier": [
24 |       "error",
25 |       { endOfLine: ["auto"]}
26 |     ]
27 |   },
28 | };
29 | 


--------------------------------------------------------------------------------
/frontend/src/pages/CasinoGame.tsx:
--------------------------------------------------------------------------------
 1 | import { Blackjack } from '../components/casinoGames/Blackjack/Blackjack'; 
 2 | 
 3 | export interface IParams {
 4 |   mode: string; // game mode (blackjack, roulette, slots)
 5 | }
 6 | 
 7 | export const CasinoGame = (params: IParams) => {
 8 |   return (
 9 |     <main className="landing-page-container container min-vh-100 d-flex flex-column justify-content-center align-items-center gap-1 mx-auto w-100 text-center">
10 |       <div>
11 |         {params.mode === "blackjack" ? <Blackjack/> : <></>}
12 |         {/* {params.mode === "Roulette" ? <Roulette/> : <></>} */}
13 |         {/* {params.mode === "Slots" ? <Slots/> : <></>} */}
14 |       </div>
15 |     </main>
16 |   );
17 | };
18 | 
19 | export default CasinoGame;
20 | 


--------------------------------------------------------------------------------
/frontend/src/App.tsx:
--------------------------------------------------------------------------------
 1 | import { BrowserRouter as Router, Route, Routes } from "react-router-dom";
 2 | import LandingPage from "./pages/LandingPage";
 3 | import RoulettePage from "./pages/RoulettePage";
 4 | import CasinoGame from "./pages/CasinoGame";
 5 | import "bootstrap/dist/css/bootstrap.css";
 6 | import "./App.css";
 7 | 
 8 | const App = () => {
 9 |   return (
10 |     <Router>
11 |       <Routes>
12 |         <Route path="/" element={<LandingPage />} />
13 |         <Route path="/roulette" element={<RoulettePage />} />
14 |         <Route path="/blackjack" element={<CasinoGame mode={"blackjack"} />} />
15 |         {/* <Route path="/slots" element={<CasinoGame mode={"slots"} />} /> */}
16 |       </Routes>
17 |     </Router>
18 |   );
19 | };
20 | 
21 | export default App;
22 | 


--------------------------------------------------------------------------------
/frontend/tsconfig.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "target": "es5",
 4 |     "lib": [
 5 |       "dom",
 6 |       "dom.iterable",
 7 |       "esnext"
 8 |     ],
 9 |     "allowJs": true,
10 |     "skipLibCheck": true,
11 |     "esModuleInterop": true,
12 |     "allowSyntheticDefaultImports": true,
13 |     "strict": true,
14 |     "forceConsistentCasingInFileNames": true,
15 |     "noFallthroughCasesInSwitch": true,
16 |     "module": "esnext",
17 |     "moduleResolution": "node",
18 |     "resolveJsonModule": true,
19 |     "isolatedModules": true,
20 |     "noEmit": true,
21 |     "jsx": "react-jsx",
22 |     "typeRoots": [ "./types", "./node_modules/@types"]
23 |   },
24 |   "include": [
25 |     "src", "./types"
26 |   ],
27 |   "exclude": ["node_modules", "typings"]
28 | }
29 | 


--------------------------------------------------------------------------------
/frontend/src/BlackJack/style.css:
--------------------------------------------------------------------------------
 1 | 
 2 | :root {
 3 |     background-color:rgb(203, 242, 255);
 4 |     font-size: 62.5%;
 5 | }
 6 |   
 7 | h1 {
 8 |     color: rgb(4, 30, 73);
 9 |     margin: auto;
10 | }
11 | 
12 | .container {
13 |   background-color: rgb(126, 255, 244); 
14 |   color: black;
15 |   width: 90%;
16 |   margin: auto;
17 |   padding: 30px 0;
18 |   border: 4px solid rgb(78, 175, 78);
19 | }
20 | 
21 | .btn {
22 |   display: inline-block;
23 |   border: 1px solid #FFA800;
24 |   height: 50px;
25 |   width: 75px;
26 |   margin:0 auto;
27 |   background-color: white;
28 | }
29 | 
30 | .hand {
31 |   background-color: rgb(254, 255, 191);
32 |   color: black;
33 |   width: 60%;
34 |   margin: auto;
35 |   padding: auto;
36 |   border: 2px white;
37 | }
38 | 
39 | .card {
40 |     background-color: white;
41 |     display: inline-block;
42 |     border: 3px solid black;
43 |     margin: 7px;
44 |     padding: 30px;
45 |     height: 45px;
46 |     width: 30px;
47 |     text-align: center;
48 | }
49 | 
50 | .center {
51 |     text-align: center;
52 | }
53 | 


--------------------------------------------------------------------------------
/frontend/src/pages/LandingPage.tsx:
--------------------------------------------------------------------------------
 1 | import { Link } from "react-router-dom";
 2 | import { WalletConnector } from "../components/WalletConnector";
 3 | import { ClaimChips } from "../components/ClaimChips";
 4 | 
 5 | export const LandingPage = () => {
 6 |   return (
 7 |     <main className="landing-page-container container min-vh-100 d-flex flex-column justify-content-center align-items-center gap-1 mx-auto w-100 text-center">
 8 |       <div>
 9 |         <div className="landing-page-image-container">
10 |           <img className="landing-page-image" src="/logo.png" alt="" />
11 |         </div>
12 |       </div>
13 |       <div>
14 |         <h1 className="landing-page-title">
15 |           A blockchain-based collection of casino games
16 |         </h1>
17 | 
18 |         <Link to="/blackjack" className="btn btn-outline-dark me-2">
19 |           Play Blackjack ♣️
20 |         </Link>
21 |         <Link to="/slots" className="btn btn-outline-dark me-2">
22 |           Play Slots 🎰
23 |         </Link>
24 |         <Link to="/roulette" className="btn btn-outline-dark">
25 |           Play Roulette 🎲
26 |         </Link>
27 |       </div>
28 |       <WalletConnector/>
29 |       <ClaimChips/>
30 |     </main>
31 |   );
32 | };
33 | 
34 | export default LandingPage;
35 | 


--------------------------------------------------------------------------------
/frontend/src/BlackJack/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |     <head>
 4 |         <meta charset="utf-8">
 5 |         <link rel="stylesheet" href="style.css">
 6 |         <title>BlackJack Prototype</title>
 7 |         
 8 |     </head>
 9 |     <body>
10 |         <h1>CryptoCasino: Blackjack</h1>
11 |         <div class="container">
12 |             <div id="dealerHand" class="hand">
13 |                 <p>Dealer's Hand:</p>
14 |                 <span id="dealerScore"></span>
15 |             </div>
16 |         </div>
17 |         <div id="playersTurn" style="text-align:center">
18 |             <button id="hitButton" class="btn" onclick="playerTurn('hit')">HIT</button>
19 |             <button id="standButton" class="btn" onclick="playerTurn('stand')">STAND</button>
20 |         </div>
21 |         <div class="container">
22 |             <div id="playerHand" class="hand">
23 |                 <p>Your Hand:</p>
24 |                 <span id="playerScore"></span>
25 |             </div>
26 |         </div>
27 |         <div id="results" class="container" style="text-align: center;">
28 |             <p>Results: </p>
29 |         </div>
30 |         <div class="center">
31 |             <button id="playAgain" class="btn" onclick="restart()">Play Again</button>
32 |         </div>
33 |         <script src="./blackjack.js"></script>
34 |     </body>
35 | </html>
36 | 


--------------------------------------------------------------------------------
/frontend/src/App.css:
--------------------------------------------------------------------------------
 1 | @import url("https://fonts.googleapis.com/css2?family=Righteous&display=swap");
 2 | 
 3 | body {
 4 |   background-color: rgb(247, 247, 255);
 5 | }
 6 | 
 7 | td {
 8 |   cursor: pointer;
 9 | }
10 | 
11 | .brand {
12 |   font-family: "Righteous", cursive;
13 | }
14 | 
15 | .landing-page-image-container {
16 |   width: 18rem;
17 |   margin: 0 auto;
18 | }
19 | 
20 | .landing-page-image {
21 |   width: 100%;
22 | }
23 | 
24 | .landing-page-title {
25 |   color: rgb(39, 154, 241);
26 |   font-family: "Righteous", cursive;
27 |   font-size: 1.5rem;
28 |   margin-bottom: 1rem;
29 | }
30 | 
31 | .bet {
32 |   color: black;
33 |   display: inline;
34 |   margin-right: 1rem;
35 |   font-weight: bold;
36 | }
37 | 
38 | .old-result {
39 |   color: white;
40 |   padding: 0.5rem;
41 |   border-radius: 5px;
42 |   width: 40px;
43 |   text-align: center;
44 |   display: inline;
45 |   margin-right: 1rem;
46 |   font-weight: bold;
47 | }
48 | 
49 | /* sm */
50 | @media (min-width: 576px) {
51 |   .landing-page-image-container {
52 |     width: 24rem;
53 |   }
54 | }
55 | 
56 | /* md */
57 | @media (min-width: 768px) {
58 | }
59 | 
60 | /* lg */
61 | @media (min-width: 992px) {
62 |   .landing-page-image-container {
63 |     width: 30rem;
64 |   }
65 | }
66 | 
67 | /* xl */
68 | @media (min-width: 1200px) {
69 |   .landing-page-image-container {
70 |     width: 35rem;
71 |   }
72 | }
73 | 


--------------------------------------------------------------------------------
/frontend/src/utils/connectors.ts:
--------------------------------------------------------------------------------
 1 | /* MIT License
 2 | Copyright (c) 2022 ChainShot
 3 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), 
 4 | to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 5 | and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 6 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 7 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 8 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
 9 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
10 | */
11 | 
12 | import { InjectedConnector } from '@web3-react/injected-connector';
13 | 
14 | // 80001 = Matic Mumbai Testnet
15 | // 31337/1337 = Localhost Testnet
16 | export const injected = new InjectedConnector({
17 |   supportedChainIds: [80001, 31337, 1337]
18 | });
19 | 


--------------------------------------------------------------------------------
/frontend/src/hooks/useRoulette.ts:
--------------------------------------------------------------------------------
 1 | import { useState } from "react";
 2 | 
 3 | export const useRoulette = () => {
 4 |   const [straightUps, setStraightUps] = useState([
 5 |     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 6 |     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
 7 |   ]); // 36 straight up numbers
 8 |   const [zeros, setZeros] = useState([0, 0]); // 0 - 00
 9 |   const [columns, setColumns] = useState([0, 0, 0]);
10 |   const [dozens, setDozens] = useState([0, 0, 0]); // 1_12 - 13_24 - 25_36
11 |   const [redBlack, setRedBlack] = useState([0, 0]); // red - black
12 |   const [oddEven, setOddEven] = useState([0, 0]); // odd - even
13 |   const [highLow, setHighLow] = useState([0, 0]); // 1_18 - 19_36
14 | 
15 |   const clear = () => {
16 |     setStraightUps([
17 |       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
18 |       0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
19 |     ]);
20 |     setZeros([0, 0]);
21 |     setColumns([0, 0, 0]);
22 |     setDozens([0, 0, 0]);
23 |     setRedBlack([0, 0]);
24 |     setOddEven([0, 0]);
25 |     setHighLow([0, 0]);
26 |   };
27 | 
28 |   return {
29 |     straightUps,
30 |     setStraightUps,
31 |     zeros,
32 |     setZeros,
33 |     columns,
34 |     setColumns,
35 |     dozens,
36 |     setDozens,
37 |     redBlack,
38 |     setRedBlack,
39 |     oddEven,
40 |     setOddEven,
41 |     highLow,
42 |     setHighLow,
43 |     clear,
44 |   };
45 | };
46 | 


--------------------------------------------------------------------------------
/frontend/src/utils/provider.ts:
--------------------------------------------------------------------------------
 1 | /* MIT License
 2 | Copyright (c) 2022 ChainShot
 3 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), 
 4 | to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 5 | and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 6 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 7 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 8 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
 9 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
10 | */
11 | 
12 | import type { Web3Provider as ProviderType } from '@ethersproject/providers';
13 | import { Web3Provider } from '@ethersproject/providers';
14 | 
15 | export function getProvider(provider: any): ProviderType {
16 |   const web3Provider = new Web3Provider(provider);
17 |   web3Provider.pollingInterval = 1000;
18 |   return web3Provider;
19 | }
20 | 
21 | export type Provider = ProviderType;
22 | 


--------------------------------------------------------------------------------
/frontend/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "frontend",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "dependencies": {
 6 |     "@testing-library/jest-dom": "^5.16.2",
 7 |     "@testing-library/react": "^12.1.2",
 8 |     "@testing-library/user-event": "^13.5.0",
 9 |     "@types/jest": "^27.4.0",
10 |     "@types/node": "^16.11.25",
11 |     "@types/react": "^17.0.39",
12 |     "@types/react-dom": "^17.0.11",
13 |     "@types/react-router-dom": "^5.3.3",
14 |     "@web3-react/abstract-connector": "^6.0.7",
15 |     "@web3-react/core": "^6.1.9",
16 |     "@web3-react/injected-connector": "^6.0.7",
17 |     "bootstrap": "^5.1.3",
18 |     "ethers": "^5.6.4",
19 |     "joi": "^17.6.0",
20 |     "react": "^17.0.2",
21 |     "react-bootstrap": "^2.2.0",
22 |     "react-custom-roulette": "^1.2.0",
23 |     "react-dom": "^17.0.2",
24 |     "react-free-playing-cards": "^0.4.2",
25 |     "react-router-dom": "^6.2.2",
26 |     "react-scripts": "5.0.0",
27 |     "typescript": "^4.5.5",
28 |     "web-vitals": "^2.1.4"
29 |   },
30 |   "scripts": {
31 |     "start": "react-scripts start",
32 |     "build": "react-scripts build",
33 |     "test": "react-scripts test",
34 |     "eject": "react-scripts eject"
35 |   },
36 |   "eslintConfig": {
37 |     "extends": [
38 |       "react-app",
39 |       "react-app/jest"
40 |     ]
41 |   },
42 |   "browserslist": {
43 |     "production": [
44 |       ">0.2%",
45 |       "not dead",
46 |       "not op_mini all"
47 |     ],
48 |     "development": [
49 |       "last 1 chrome version",
50 |       "last 1 firefox version",
51 |       "last 1 safari version"
52 |     ]
53 |   }
54 | }
55 | 


--------------------------------------------------------------------------------
/hardhat.config.ts:
--------------------------------------------------------------------------------
 1 | import * as dotenv from "dotenv";
 2 | 
 3 | import { HardhatUserConfig, task } from "hardhat/config";
 4 | import "@nomiclabs/hardhat-etherscan";
 5 | import "@nomiclabs/hardhat-waffle";
 6 | import "@typechain/hardhat";
 7 | import "hardhat-gas-reporter";
 8 | import "solidity-coverage";
 9 | 
10 | dotenv.config();
11 | 
12 | // This is a sample Hardhat task. To learn how to create your own go to
13 | // https://hardhat.org/guides/create-task.html
14 | task("accounts", "Prints the list of accounts", async (taskArgs, hre) => {
15 |     const accounts = await hre.ethers.getSigners();
16 | 
17 |     for (const account of accounts) {
18 |         console.log(account.address);
19 |     }
20 | });
21 | 
22 | // You need to export an object to set up your config
23 | // Go to https://hardhat.org/config/ to learn more
24 | 
25 | const config: HardhatUserConfig = {
26 |     solidity: {
27 |         version: "0.8.4",
28 |         settings: {
29 |             optimizer: {
30 |                 enabled: true,
31 |                 runs: 1000
32 |             },
33 |         }
34 |     },
35 |     paths: {
36 |         artifacts: './frontend/src/artifacts'
37 |     },
38 |     networks: {
39 |         matic: {
40 |             url: "https://rpc-mumbai.maticvigil.com",
41 |             accounts: process.env.MUMBAI_PRIVATE_KEY !== undefined ? [process.env.MUMBAI_PRIVATE_KEY] : [],
42 |         },
43 |     },
44 |     gasReporter: {
45 |         enabled: process.env.REPORT_GAS !== undefined,
46 |         currency: "USD",
47 |     },
48 |     etherscan: {
49 |         apiKey: process.env.ETHERSCAN_API_KEY,
50 |     },
51 | };
52 | 
53 | export default config;
54 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "blockchaingame",
 3 |   "version": "1.0.0",
 4 |   "description": "",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "echo \"Error: no test specified\" && exit 1"
 8 |   },
 9 |   "repository": {
10 |     "type": "git",
11 |     "url": "git+https://github.com/jweiss0/BlockchainGame.git"
12 |   },
13 |   "keywords": [],
14 |   "author": "",
15 |   "license": "ISC",
16 |   "bugs": {
17 |     "url": "https://github.com/jweiss0/BlockchainGame/issues"
18 |   },
19 |   "homepage": "https://github.com/jweiss0/BlockchainGame#readme",
20 |   "devDependencies": {
21 |     "@nomiclabs/hardhat-ethers": "^2.0.5",
22 |     "@nomiclabs/hardhat-etherscan": "^3.0.1",
23 |     "@nomiclabs/hardhat-waffle": "^2.0.2",
24 |     "@typechain/ethers-v5": "^7.2.0",
25 |     "@typechain/hardhat": "^2.3.1",
26 |     "@types/chai": "^4.3.0",
27 |     "@types/mocha": "^9.1.0",
28 |     "@types/node": "^12.20.46",
29 |     "@typescript-eslint/eslint-plugin": "^4.33.0",
30 |     "@typescript-eslint/parser": "^4.33.0",
31 |     "chai": "^4.3.6",
32 |     "dotenv": "^10.0.0",
33 |     "eslint": "^7.32.0",
34 |     "eslint-config-prettier": "^8.3.0",
35 |     "eslint-config-standard": "^16.0.3",
36 |     "eslint-plugin-import": "^2.25.4",
37 |     "eslint-plugin-node": "^11.1.0",
38 |     "eslint-plugin-prettier": "^3.4.1",
39 |     "eslint-plugin-promise": "^5.2.0",
40 |     "ethereum-waffle": "^3.4.0",
41 |     "ethers": "^5.5.4",
42 |     "hardhat": "^2.8.4",
43 |     "hardhat-gas-reporter": "^1.0.7",
44 |     "prettier": "^2.5.1",
45 |     "prettier-plugin-solidity": "^1.0.0-beta.13",
46 |     "solhint": "^3.3.7",
47 |     "solidity-coverage": "^0.7.19",
48 |     "ts-node": "^10.5.0",
49 |     "typechain": "^5.2.0",
50 |     "typescript": "^4.5.5"
51 |   },
52 |   "dependencies": {
53 |     "@openzeppelin/contracts": "^4.5.0"
54 |   }
55 | }
56 | 


--------------------------------------------------------------------------------
/frontend/public/index.html:
--------------------------------------------------------------------------------
 1 | <!DOCTYPE html>
 2 | <html lang="en">
 3 |   <head>
 4 |     <meta charset="utf-8" />
 5 |     <link rel="icon" href="%PUBLIC_URL%/favicon.ico" />
 6 |     <meta name="viewport" content="width=device-width, initial-scale=1" />
 7 |     <meta name="theme-color" content="#000000" />
 8 |     <meta
 9 |       name="description"
10 |       content="Web site created using create-react-app"
11 |     />
12 |     <link rel="apple-touch-icon" href="%PUBLIC_URL%/logo192.png" />
13 |     <!--
14 |       manifest.json provides metadata used when your web app is installed on a
15 |       user's mobile device or desktop. See https://developers.google.com/web/fundamentals/web-app-manifest/
16 |     -->
17 |     <link rel="manifest" href="%PUBLIC_URL%/manifest.json" />
18 |     <!--
19 |       Notice the use of %PUBLIC_URL% in the tags above.
20 |       It will be replaced with the URL of the `public` folder during the build.
21 |       Only files inside the `public` folder can be referenced from the HTML.
22 | 
23 |       Unlike "/favicon.ico" or "favicon.ico", "%PUBLIC_URL%/favicon.ico" will
24 |       work correctly both with client-side routing and a non-root public URL.
25 |       Learn how to configure a non-root public URL by running `npm run build`.
26 |     -->
27 |     <title>React App</title>
28 |   </head>
29 |   <body>
30 |     <noscript>You need to enable JavaScript to run this app.</noscript>
31 |     <div id="root"></div>
32 |     <!--
33 |       This HTML file is a template.
34 |       If you open it directly in the browser, you will see an empty page.
35 | 
36 |       You can add webfonts, meta tags, or analytics to this file.
37 |       The build step will place the bundled scripts into the <body> tag.
38 | 
39 |       To begin the development, run `npm start` or `yarn start`.
40 |       To create a production bundle, use `npm run build` or `yarn build`.
41 |     -->
42 |   </body>
43 | </html>
44 | 


--------------------------------------------------------------------------------
/test/index.ts:
--------------------------------------------------------------------------------
 1 | import { expect } from "chai";
 2 | import { ethers } from "hardhat";
 3 | import { Contract } from 'ethers';
 4 | 
 5 | describe("Deployment", function () {
 6 |   let dChip: Contract;
 7 |   let dCasino: Contract;
 8 |   let dBlackjack: Contract;
 9 |   let dRoulette: Contract;
10 | 
11 |   beforeEach(async () => {
12 |     // Deploy Chip contract
13 |     const fChip = await ethers.getContractFactory("Chip");
14 |     dChip = await fChip.deploy();
15 |     await dChip.deployed();
16 |     // Deploy Casino contract
17 |     const fCasino = await ethers.getContractFactory("Casino");
18 |     dCasino = await fCasino.deploy();
19 |     await dCasino.deployed();
20 |     // Deploy Blackjack contract with minbet of 1, maxbet of 500, num decks 4
21 |     const fBlackjack = await ethers.getContractFactory("Blackjack");
22 |     dBlackjack = await fBlackjack.deploy(ethers.utils.parseEther("1"), ethers.utils.parseEther("50"), 4); // minbet 1 in wei, maxbet 50 in wei
23 |     await dBlackjack.deployed();
24 |     // Deploy Roulette contract with minbet of 1, maxbet of 500, num decks 4
25 |     const fRoulette = await ethers.getContractFactory("Roulette");
26 |     dRoulette = await fRoulette.deploy(ethers.utils.parseEther("1"), ethers.utils.parseEther("50")); // minbet 1 in wei, maxbet 50 in wei
27 |     await dRoulette.deployed();
28 |   });
29 | 
30 |   it("Should successfully set initial contract values", async function () {
31 |     // Set values in Chip contract
32 |     await dChip.setCasinoAddress(dCasino.address);   
33 |     // Set values in Casino contract
34 |     await dCasino.setChipContractAddress(dChip.address);
35 |     await dCasino.addCasinoGameContractAddress(dBlackjack.address);
36 |     // Set values in Blackjack (CasinoGame) contract
37 |     await dBlackjack.setCasinoContractAddress(dCasino.address);
38 |     await dBlackjack.setChipContractAddress(dChip.address);
39 |     // Set values in Roulette (CasinoGame) contract
40 |     await dRoulette.setCasinoContractAddress(dCasino.address);
41 |     await dRoulette.setChipContractAddress(dChip.address);
42 |   });
43 | });


--------------------------------------------------------------------------------
/contracts/Chip.sol:
--------------------------------------------------------------------------------
 1 | // SPDX-License-Identifier: GPL v3.0
 2 | pragma solidity ^0.8.4;
 3 | 
 4 | import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
 5 | import "@openzeppelin/contracts/access/Ownable.sol";
 6 | 
 7 | /* The Chip contract defines a utility token used for all transactions
 8 | *  within the Casino games. There is no intention of providing any liquidity
 9 | *  or monetary value to the Chip token.
10 | */
11 | contract Chip is ERC20, Ownable {
12 | 
13 |     // State variables.
14 |     address private casinoAddress;
15 | 
16 |     constructor() ERC20("Chip", "CHIP") {}
17 | 
18 |     // Modifier to check if the calling address is the Casino contract address.
19 |     modifier onlyCasino {
20 |         require(msg.sender == casinoAddress, "Caller must be Casino.");
21 |         _;
22 |     }
23 | 
24 |     // Set the address of the Casino contract.
25 |     function setCasinoAddress(address _addr) external onlyOwner {
26 |         casinoAddress = _addr;
27 |     }
28 | 
29 |     // Getters
30 |     function getCasinoAddress() public view returns (address) {return casinoAddress;}
31 | 
32 |     // Minting function available only to the deploying address.
33 |     function mint(address to, uint256 amount) public onlyOwner {
34 |         _mint(to, amount);
35 |     }
36 | 
37 |     // Minting function available only to the Casino contract address.
38 |     function casinoMint(address to, uint256 amount) external onlyCasino {
39 |         _mint(to, amount * 10 ** decimals()); // Converts to wei
40 |     }
41 | 
42 |     // Allows the Casino contract to transfer tokens from a user to the contract.
43 |     // Also allows for the transfer of tokens from the contract to a user.
44 |     function casinoTransferFrom(address _from, address _to, uint256 _value) external onlyCasino {
45 |         transferFrom(_from, _to, _value);
46 |     }
47 | 
48 |     // Allows the Casino contract to transfer tokens (pay out) to a user from the contract.
49 |     function casinoPayout(address _from, address _to, uint256 _value) external onlyCasino {
50 |         increaseAllowance(_from, _value);
51 |         transferFrom(_from, _to, _value);
52 |     }
53 | }


--------------------------------------------------------------------------------
/frontend/README.md:
--------------------------------------------------------------------------------
 1 | # Getting Started with Create React App
 2 | 
 3 | This project was bootstrapped with [Create React App](https://github.com/facebook/create-react-app).
 4 | 
 5 | ## Available Scripts
 6 | 
 7 | In the project directory, you can run:
 8 | 
 9 | ### `npm start`
10 | 
11 | Runs the app in the development mode.\
12 | Open [http://localhost:3000](http://localhost:3000) to view it in the browser.
13 | 
14 | The page will reload if you make edits.\
15 | You will also see any lint errors in the console.
16 | 
17 | ### `npm test`
18 | 
19 | Launches the test runner in the interactive watch mode.\
20 | See the section about [running tests](https://facebook.github.io/create-react-app/docs/running-tests) for more information.
21 | 
22 | ### `npm run build`
23 | 
24 | Builds the app for production to the `build` folder.\
25 | It correctly bundles React in production mode and optimizes the build for the best performance.
26 | 
27 | The build is minified and the filenames include the hashes.\
28 | Your app is ready to be deployed!
29 | 
30 | See the section about [deployment](https://facebook.github.io/create-react-app/docs/deployment) for more information.
31 | 
32 | ### `npm run eject`
33 | 
34 | **Note: this is a one-way operation. Once you `eject`, you can’t go back!**
35 | 
36 | If you aren’t satisfied with the build tool and configuration choices, you can `eject` at any time. This command will remove the single build dependency from your project.
37 | 
38 | Instead, it will copy all the configuration files and the transitive dependencies (webpack, Babel, ESLint, etc) right into your project so you have full control over them. All of the commands except `eject` will still work, but they will point to the copied scripts so you can tweak them. At this point you’re on your own.
39 | 
40 | You don’t have to ever use `eject`. The curated feature set is suitable for small and middle deployments, and you shouldn’t feel obligated to use this feature. However we understand that this tool wouldn’t be useful if you couldn’t customize it when you are ready for it.
41 | 
42 | ## Learn More
43 | 
44 | You can learn more in the [Create React App documentation](https://facebook.github.io/create-react-app/docs/getting-started).
45 | 
46 | To learn React, check out the [React documentation](https://reactjs.org/).
47 | 


--------------------------------------------------------------------------------
/frontend/src/logo.svg:
--------------------------------------------------------------------------------
1 | <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 841.9 595.3"><g fill="#61DAFB"><path d="M666.3 296.5c0-32.5-40.7-63.3-103.1-82.4 14.4-63.6 8-114.2-20.2-130.4-6.5-3.8-14.1-5.6-22.4-5.6v22.3c4.6 0 8.3.9 11.4 2.6 13.6 7.8 19.5 37.5 14.9 75.7-1.1 9.4-2.9 19.3-5.1 29.4-19.6-4.8-41-8.5-63.5-10.9-13.5-18.5-27.5-35.3-41.6-50 32.6-30.3 63.2-46.9 84-46.9V78c-27.5 0-63.5 19.6-99.9 53.6-36.4-33.8-72.4-53.2-99.9-53.2v22.3c20.7 0 51.4 16.5 84 46.6-14 14.7-28 31.4-41.3 49.9-22.6 2.4-44 6.1-63.6 11-2.3-10-4-19.7-5.2-29-4.7-38.2 1.1-67.9 14.6-75.8 3-1.8 6.9-2.6 11.5-2.6V78.5c-8.4 0-16 1.8-22.6 5.6-28.1 16.2-34.4 66.7-19.9 130.1-62.2 19.2-102.7 49.9-102.7 82.3 0 32.5 40.7 63.3 103.1 82.4-14.4 63.6-8 114.2 20.2 130.4 6.5 3.8 14.1 5.6 22.5 5.6 27.5 0 63.5-19.6 99.9-53.6 36.4 33.8 72.4 53.2 99.9 53.2 8.4 0 16-1.8 22.6-5.6 28.1-16.2 34.4-66.7 19.9-130.1 62-19.1 102.5-49.9 102.5-82.3zm-130.2-66.7c-3.7 12.9-8.3 26.2-13.5 39.5-4.1-8-8.4-16-13.1-24-4.6-8-9.5-15.8-14.4-23.4 14.2 2.1 27.9 4.7 41 7.9zm-45.8 106.5c-7.8 13.5-15.8 26.3-24.1 38.2-14.9 1.3-30 2-45.2 2-15.1 0-30.2-.7-45-1.9-8.3-11.9-16.4-24.6-24.2-38-7.6-13.1-14.5-26.4-20.8-39.8 6.2-13.4 13.2-26.8 20.7-39.9 7.8-13.5 15.8-26.3 24.1-38.2 14.9-1.3 30-2 45.2-2 15.1 0 30.2.7 45 1.9 8.3 11.9 16.4 24.6 24.2 38 7.6 13.1 14.5 26.4 20.8 39.8-6.3 13.4-13.2 26.8-20.7 39.9zm32.3-13c5.4 13.4 10 26.8 13.8 39.8-13.1 3.2-26.9 5.9-41.2 8 4.9-7.7 9.8-15.6 14.4-23.7 4.6-8 8.9-16.1 13-24.1zM421.2 430c-9.3-9.6-18.6-20.3-27.8-32 9 .4 18.2.7 27.5.7 9.4 0 18.7-.2 27.8-.7-9 11.7-18.3 22.4-27.5 32zm-74.4-58.9c-14.2-2.1-27.9-4.7-41-7.9 3.7-12.9 8.3-26.2 13.5-39.5 4.1 8 8.4 16 13.1 24 4.7 8 9.5 15.8 14.4 23.4zM420.7 163c9.3 9.6 18.6 20.3 27.8 32-9-.4-18.2-.7-27.5-.7-9.4 0-18.7.2-27.8.7 9-11.7 18.3-22.4 27.5-32zm-74 58.9c-4.9 7.7-9.8 15.6-14.4 23.7-4.6 8-8.9 16-13 24-5.4-13.4-10-26.8-13.8-39.8 13.1-3.1 26.9-5.8 41.2-7.9zm-90.5 125.2c-35.4-15.1-58.3-34.9-58.3-50.6 0-15.7 22.9-35.6 58.3-50.6 8.6-3.7 18-7 27.7-10.1 5.7 19.6 13.2 40 22.5 60.9-9.2 20.8-16.6 41.1-22.2 60.6-9.9-3.1-19.3-6.5-28-10.2zM310 490c-13.6-7.8-19.5-37.5-14.9-75.7 1.1-9.4 2.9-19.3 5.1-29.4 19.6 4.8 41 8.5 63.5 10.9 13.5 18.5 27.5 35.3 41.6 50-32.6 30.3-63.2 46.9-84 46.9-4.5-.1-8.3-1-11.3-2.7zm237.2-76.2c4.7 38.2-1.1 67.9-14.6 75.8-3 1.8-6.9 2.6-11.5 2.6-20.7 0-51.4-16.5-84-46.6 14-14.7 28-31.4 41.3-49.9 22.6-2.4 44-6.1 63.6-11 2.3 10.1 4.1 19.8 5.2 29.1zm38.5-66.7c-8.6 3.7-18 7-27.7 10.1-5.7-19.6-13.2-40-22.5-60.9 9.2-20.8 16.6-41.1 22.2-60.6 9.9 3.1 19.3 6.5 28.1 10.2 35.4 15.1 58.3 34.9 58.3 50.6-.1 15.7-23 35.6-58.4 50.6zM320.8 78.4z"/><circle cx="420.9" cy="296.5" r="45.7"/><path d="M520.5 78.1z"/></g></svg>


--------------------------------------------------------------------------------
/contracts/Casino.sol:
--------------------------------------------------------------------------------
 1 | // SPDX-License-Identifier: GPL v3.0
 2 | pragma solidity ^0.8.4;
 3 | 
 4 | import "@openzeppelin/contracts/access/Ownable.sol";
 5 | 
 6 | interface ChipInterface {
 7 |     function balanceOf(address account) external view returns (uint256);
 8 |     function casinoMint(address to, uint256 amount) external;
 9 |     function casinoTransferFrom(address _from, address _to, uint256 _value) external;
10 |     function casinoPayout(address _from, address _to, uint256 _value) external;
11 | }
12 | 
13 | /* The Casino contract defines top-level Casino-related transactions that occur
14 | *  within the casino. The main purpose for this contract is to provide a way 
15 | *  for users to claim free utility tokens to use for the casino games, almost
16 | *  like a "chip exchange".
17 | */
18 | contract Casino is Ownable {
19 | 
20 |     // State variables
21 |     ChipInterface private chipContract;
22 |     // address private deployerAddress;
23 |     address[] private casinoGameAddresses;
24 |     mapping (address => bool) private freeTokensClaimed;
25 | 
26 |     // Modifier to check if the calling address is a CasinoGame contract address
27 |     modifier onlyCasinoGame {
28 |         bool isAddr = false;
29 |         for(uint i = 0; i < casinoGameAddresses.length; i++) {
30 |             if(msg.sender == casinoGameAddresses[i]) {
31 |                 isAddr = true;
32 |                 break;
33 |             }
34 |         }
35 |         require(isAddr, "Caller must be CasinoGame.");
36 |         _;
37 |     }
38 | 
39 |     // Sets the address of the Chip utility token contract
40 |     function setChipContractAddress(address _address) external onlyOwner {
41 |         chipContract = ChipInterface(_address);
42 |     }
43 | 
44 |     // Add address of CasinoGame
45 |     function addCasinoGameContractAddress(address _address) external onlyOwner {
46 |         casinoGameAddresses.push(_address);
47 |     }
48 | 
49 |     // Checks if a user has already claimed free utility tokens
50 |     function alreadyClaimedTokens(address _address) external view returns (bool) {
51 |         return freeTokensClaimed[_address];
52 |     }
53 |     
54 |     // Allows a user to claim 100 free utility tokens one time
55 |     function claimInitialTokens() external {
56 |         // Check that the user has not already claimed their free tokens
57 |         require(freeTokensClaimed[msg.sender] == false, "Already claimed free tokens.");
58 |         // Mint the tokens for the user using the Casino contract function
59 |         chipContract.casinoMint(msg.sender, 100);
60 |         // Mark the user's first time chips as claimed
61 |         freeTokensClaimed[msg.sender] = true;
62 |     }
63 | 
64 |     // Pays a certain amount of winnings to the specified address. If the Casino
65 |     // contract does not have enough Chips, more are minted for the Casino.
66 |     function payWinnings(address _to, uint256 _amount) external onlyCasinoGame {
67 |         if(chipContract.balanceOf(address(this)) <= _amount) {
68 |             chipContract.casinoMint(address(this), _amount * 10);
69 |         }
70 |         chipContract.casinoPayout(address(this), _to, _amount);
71 |     }
72 | 
73 |     // Takes a certain amount from the paying wallet and transfers it to
74 |     // the casino contract.
75 |     function transferFrom(address _from, uint256 _amount) external onlyCasinoGame {
76 |         chipContract.casinoTransferFrom(_from, address(this), _amount);
77 |     }
78 | }


--------------------------------------------------------------------------------
/scripts/deploy.ts:
--------------------------------------------------------------------------------
 1 | // We require the Hardhat Runtime Environment explicitly here. This is optional
 2 | // but useful for running the script in a standalone fashion through `node <script>`.
 3 | //
 4 | // When running the script with `npx hardhat run <script>` you'll find the Hardhat
 5 | // Runtime Environment's members available in the global scope.
 6 | import { ethers } from "hardhat";
 7 | 
 8 | async function main() {
 9 |     // Hardhat always runs the compile task when running scripts with its command
10 |     // line interface.
11 |     //
12 |     // If this script is run directly using `node` you may want to call compile
13 |     // manually to make sure everything is compiled
14 |     // await hre.run('compile');
15 | 
16 |     //  Deploy Chip contract
17 |     const fChip = await ethers.getContractFactory("Chip");
18 |     const dChip = await fChip.deploy();
19 |     await dChip.deployed();
20 |     console.log("Chip deployed to:", dChip.address);
21 | 
22 |     // Deploy Casino contract
23 |     const fCasino = await ethers.getContractFactory("Casino");
24 |     const dCasino = await fCasino.deploy();
25 |     await dCasino.deployed();
26 |     console.log("Casino deployed to:", dCasino.address);
27 | 
28 |     // Deploy Blackjack contract
29 |     const fBlackjack = await ethers.getContractFactory("Blackjack");
30 |     const dBlackjack = await fBlackjack.deploy(ethers.utils.parseEther("1"), ethers.utils.parseEther("50"), 4); // minbet 1 in wei, maxbet 50 in wei
31 |     await dBlackjack.deployed();
32 |     console.log("Blackjack deployed to:", dBlackjack.address);
33 |     console.log("Set initial min and max bets for Blackjack contract");
34 | 
35 |     // Deploy Roulette contract
36 |     const fRoulette = await ethers.getContractFactory("Roulette");
37 |     const dRoulette = await fRoulette.deploy(ethers.utils.parseEther("1"), ethers.utils.parseEther("50")); // minbet 1 in wei, maxbet 50 in wei
38 |     await dRoulette.deployed();
39 |     console.log("Roulette deployed to:", dRoulette.address);
40 |     console.log("Set initial min and max bets for Roulette contract");
41 | 
42 |     // Set values in Chip contract
43 |     await dChip.setCasinoAddress(dCasino.address);
44 |     console.log("Set initial state values for Chip contract");
45 |     
46 |     // Set values in Casino contract
47 |     await dCasino.setChipContractAddress(dChip.address);
48 |     await dCasino.addCasinoGameContractAddress(dBlackjack.address);
49 |     console.log("Set initial state values for Casino contract");
50 | 
51 |     // Set values in Blackjack contract
52 |     await dBlackjack.setCasinoContractAddress(dCasino.address);
53 |     await dBlackjack.setChipContractAddress(dChip.address);
54 |     await dBlackjack.setMinimumBet(ethers.utils.parseEther("1"));
55 |     await dBlackjack.setMaximumBet(ethers.utils.parseEther("50"))
56 |     console.log("Set initial state values for Blackjack contract");
57 | 
58 |     // Set values in Roulette contract
59 |     await dRoulette.setCasinoContractAddress(dCasino.address);
60 |     await dRoulette.setChipContractAddress(dChip.address);
61 |     await dRoulette.setMinimumBet(ethers.utils.parseEther("1"));
62 |     await dRoulette.setMaximumBet(ethers.utils.parseEther("50"))
63 |     console.log("Set initial state values for Roulette contract");
64 | }
65 | 
66 | // We recommend this pattern to be able to use async/await everywhere
67 | // and properly handle errors.
68 | main().catch((error) => {
69 |     console.error(error);
70 |     process.exitCode = 1;
71 | });
72 | 


--------------------------------------------------------------------------------
/CODE_OF_CONDUCT.md:
--------------------------------------------------------------------------------
 1 | # Contributor Covenant Code of Conduct
 2 | 
 3 | ## Our Pledge
 4 | 
 5 | In the interest of fostering an open and welcoming environment, we as
 6 | contributors and maintainers pledge to making participation in our project and
 7 | our community a harassment-free experience for everyone, regardless of age, body
 8 | size, disability, ethnicity, gender identity and expression, level of experience,
 9 | education, socio-economic status, nationality, personal appearance, race,
10 | religion, or sexual identity and orientation.
11 | 
12 | ## Our Standards
13 | 
14 | Examples of behavior that contributes to creating a positive environment
15 | include:
16 | 
17 | * Using welcoming and inclusive language
18 | * Being respectful of differing viewpoints and experiences
19 | * Gracefully accepting constructive criticism
20 | * Focusing on what is best for the community
21 | * Showing empathy towards other community members
22 | 
23 | Examples of unacceptable behavior by participants include:
24 | 
25 | * The use of sexualized language or imagery and unwelcome sexual attention or
26 |   advances
27 | * Trolling, insulting/derogatory comments, and personal or political attacks
28 | * Public or private harassment
29 | * Publishing others' private information, such as a physical or electronic
30 |   address, without explicit permission
31 | * Other conduct which could reasonably be considered inappropriate in a
32 |   professional setting
33 | 
34 | ## Our Responsibilities
35 | 
36 | Project maintainers are responsible for clarifying the standards of acceptable
37 | behavior and are expected to take appropriate and fair corrective action in
38 | response to any instances of unacceptable behavior.
39 | 
40 | Project maintainers have the right and responsibility to remove, edit, or
41 | reject comments, commits, code, wiki edits, issues, and other contributions
42 | that are not aligned to this Code of Conduct, or to ban temporarily or
43 | permanently any contributor for other behaviors that they deem inappropriate,
44 | threatening, offensive, or harmful.
45 | 
46 | ## Scope
47 | 
48 | This Code of Conduct applies both within project spaces and in public spaces
49 | when an individual is representing the project or its community. Examples of
50 | representing a project or community include using an official project e-mail
51 | address, posting via an official social media account, or acting as an appointed
52 | representative at an online or offline event. Representation of a project may be
53 | further defined and clarified by project maintainers.
54 | 
55 | ## Enforcement
56 | 
57 | Instances of abusive, harassing, or otherwise unacceptable behavior may be
58 | reported by contacting the project team at {{ email }}. All
59 | complaints will be reviewed and investigated and will result in a response that
60 | is deemed necessary and appropriate to the circumstances. The project team is
61 | obligated to maintain confidentiality with regard to the reporter of an incident.
62 | Further details of specific enforcement policies may be posted separately.
63 | 
64 | Project maintainers who do not follow or enforce the Code of Conduct in good
65 | faith may face temporary or permanent repercussions as determined by other
66 | members of the project's leadership.
67 | 
68 | ## Attribution
69 | 
70 | This Code of Conduct is adapted from the [Contributor Covenant][homepage], version 1.4,
71 | available at https://www.contributor-covenant.org/version/1/4/code-of-conduct.html
72 | 
73 | [homepage]: https://www.contributor-covenant.org
74 | 


--------------------------------------------------------------------------------
/frontend/src/components/ClaimChips.tsx:
--------------------------------------------------------------------------------
 1 | import { ReactElement, useEffect, useState } from 'react';
 2 | import { useWeb3React } from '@web3-react/core';
 3 | import { Contract, ethers, Signer } from 'ethers';
 4 | import { CasinoContractAddr } from '../utils/environment';
 5 | import CasinoArtifacts from '../artifacts/contracts/Casino.sol/Casino.json';
 6 | import { Provider } from '../utils/provider';
 7 | 
 8 | export function ClaimChips(): ReactElement {
 9 |     const context = useWeb3React<Provider>();
10 |     const { library, active } = context;
11 | 
12 |     const [signer, setSigner] = useState<Signer>();
13 |     const [casinoContract, setCasinoContract] = useState<Contract>();
14 |     const [alreadyClaimed, setAlreadyClaimed] = useState<boolean>(false);
15 | 
16 |     // Get connected wallet information
17 |     useEffect((): void => {
18 |         if (!library) {
19 |             setSigner(undefined);
20 |             return;
21 |         }
22 | 
23 |         setSigner(library.getSigner());
24 |     }, [library]);
25 | 
26 |     // Get Casino contract read/write
27 |     useEffect((): void => {
28 |         if (casinoContract || !signer)
29 |             return;
30 | 
31 |         if (!CasinoContractAddr)
32 |             return;
33 | 
34 |         const casinoContractInstance = new ethers.Contract(CasinoContractAddr, CasinoArtifacts.abi, signer);
35 |         setCasinoContract(casinoContractInstance);
36 | 
37 |         console.log("Connected to Casino contract.");
38 | 
39 |     }, [casinoContract, signer]);
40 | 
41 | 
42 |     // Check if free chips have already been claimed
43 |     useEffect((): void => {
44 |         async function getAlreadyClaimed(): Promise<void> {
45 |             if (!casinoContract || !signer) {
46 |                 return;
47 |             }
48 | 
49 |             const _alreadyClaimed = await casinoContract.alreadyClaimedTokens(await signer.getAddress().then((addr) => {return addr;}));
50 |             if (_alreadyClaimed !== alreadyClaimed) {
51 |                 if(_alreadyClaimed)
52 |                     console.log("User has already claimed free tokens.");
53 |                 setAlreadyClaimed(_alreadyClaimed);
54 |             }
55 |         }
56 | 
57 |         getAlreadyClaimed();
58 |     }, [casinoContract, alreadyClaimed, signer]);
59 | 
60 |     // Handle "Claim Free Chips!" button click
61 |     async function handleClaimChips(): Promise<void> {
62 |         if (!casinoContract)
63 |             return;
64 | 
65 |         if (alreadyClaimed) {
66 |             window.alert('Error!\n\nAlready claimed free chips!');
67 |             return;
68 |         }
69 |         try {
70 |             const claimChipsTxn = await casinoContract.claimInitialTokens();
71 |             await claimChipsTxn.wait();
72 |             setAlreadyClaimed(true);
73 |         } catch (error: any) {
74 |             window.alert('Error!' + (error && error.message ? `\n\n${error.message}` : ''));
75 |         }
76 |     }
77 | 
78 |     return (
79 |         <div>
80 |             {alreadyClaimed ? <></> : 
81 |                 <button
82 |                     disabled={!active || !casinoContract ? true : false}
83 |                     style={{
84 |                         cursor: !active || !casinoContract ? 'not-allowed' : 'pointer',
85 |                         borderColor: !active || !casinoContract ? 'unset' : 'blue'
86 |                     }}
87 |                     onClick={handleClaimChips}
88 |                 >
89 |                     Claim Free Chips!
90 |                 </button>
91 |             }
92 |         </div>
93 |     );
94 | }
95 | 
96 | export default ClaimChips;


--------------------------------------------------------------------------------
/PROPOSAL.md:
--------------------------------------------------------------------------------
 1 | Crypto Casino
 2 | ===========
 3 | [https://github.com/jweiss0/OSS-CryptoCasino](https://github.com/jweiss0/OSS-CryptoCasino)
 4 | 
 5 | Overview
 6 | --------
 7 | This project is a web-based game, built on blockchain technology. It will utilize the blockchain to record and verify transactions that occur within the game, such as actions or task a player completes. Crypto Casino is a collection of casino games that will be played on a front end web application, with transactions recorded on the blockchain. This includes games such as blackjack, roulette, and slots.
 8 | 
 9 | Ultimately, we plan to use this project as a learning experience for blockchain development. The project is licensed under [GPL v3.0](https://github.com/jweiss0/OSS-CryptoCasino/blob/main/LICENSE) to ensure it maintains an open source status and can be used by others in the community to learn blockchain development. Much of the project is not set in stone, leaving it up to the developers and community to modify the plans for the project as they see fit.
10 | 
11 | Semester Plan
12 | -------------
13 | Our goal this semester is to develop a completely functional web-based game, built on the blockchain. Creating a multiplayer game will be a difficult task for a single semester, so we plan to make the game singleplayer. We will concentrate on simple functionality, regarding both smart contracts and the front end web application. We would prefer a working application with simple features over a nonfunctional application with many features. Although the game will be singleplayer, there may be a leaderboard to display scores of different users. We plan to spend the first week deciding on the type of game to create and the necessary mechanics. The week after that, we will work on documentation regarding smart contract architecture design, as well as front end design documentation. After that, for the next few weeks, we will complete the smart contracts and front end web application. That leaves the last few weeks of the semester to connect the front end web application with the smart contracts, deploy the smart contracts and web application, and finally begin writing tests for the application.
14 | 
15 | Technology
16 | ----------
17 | We will be using **React** with _Redux_ (subject to change) and the _web3.js_ library for coding the front end of the application and **Solidity** for coding the smart contracts. Smart contract development, testing, and deployment will be performed with the **Hardhat** environment. We plan to deploy the smart contracts to the **Avalanche** (subject to change) network.
18 | 
19 | Team
20 | ----
21 | | **Name** | **GitHub Handle** | **Email** |
22 | |:------:|:-------:|:------:|
23 | | Jeremy Weiss | jweiss0 | weissj5@rpi.edu | 
24 | | Eugene Rozental | eugrro | rozene@rpi.edu |
25 | | Kevin Cruz | kevtlw | cruzck@rpi.edu |
26 | | Brandon Red | brandon-red | redb@rpi.edu |
27 | | Ben Xu | x-u-b | xub6@rpi.edu |
28 | 
29 | Milestones
30 | ----------
31 | - By 2/27 : Investigate game options and decide on final game mechanics. Begin work on smart contract architecture and front end design ideas.
32 | - By 3/4 : Complete smart contract architecture design and begin writing smart contracts in **Solidity**. Decide on front end web application structure and begin development in **React**.
33 | - By 4/1: Finish writing smart contracts and coding front end web application.
34 | - By 4/8: Connect front end web application with backend smart contracts. Integrate blockchain wallet communication with front end.
35 | - By 4/15: Deploy smart contracts on **Avalanche** test network.
36 | - By 4/22: Write minimal smart contract tests and front end tests using **Hardhat** and **Jest**.
37 | 


--------------------------------------------------------------------------------
/frontend/src/components/WalletConnector.tsx:
--------------------------------------------------------------------------------
  1 | import { AbstractConnector } from '@web3-react/abstract-connector';
  2 | import { UnsupportedChainIdError, useWeb3React } from '@web3-react/core';
  3 | import { NoEthereumProviderError, UserRejectedRequestError } from '@web3-react/injected-connector';
  4 | import { MouseEvent, ReactElement, useState } from 'react';
  5 | import { injected } from '../utils/connectors';
  6 | import { useEagerConnect, useInactiveListener } from '../utils/hooks';
  7 | import { Provider } from '../utils/provider';
  8 | 
  9 | type ActivateFunction = (
 10 |   connector: AbstractConnector,
 11 |   onError?: (error: Error) => void,
 12 |   throwErrors?: boolean
 13 | ) => Promise<void>;
 14 | 
 15 | function getErrorMessage(error: Error): string {
 16 |   let errorMessage: string;
 17 | 
 18 |   switch (error.constructor) {
 19 |     case NoEthereumProviderError:
 20 |       errorMessage = `No Ethereum browser extension detected. Please install MetaMask extension.`;
 21 |       break;
 22 |     case UnsupportedChainIdError:
 23 |       errorMessage = `You're connected to an unsupported network.`;
 24 |       break;
 25 |     case UserRejectedRequestError:
 26 |       errorMessage = `Please authorize this website to access your wallet account.`;
 27 |       break;
 28 |     default:
 29 |       errorMessage = error.message;
 30 |   }
 31 | 
 32 |   return errorMessage;
 33 | }
 34 | 
 35 | function ConnectWallet(): ReactElement {
 36 |   const context = useWeb3React<Provider>();
 37 |   const { activate, active } = context;
 38 | 
 39 |   const [activating, setActivating] = useState<boolean>(false);
 40 | 
 41 |   function handleActivate(event: MouseEvent<HTMLButtonElement>): void {
 42 |     event.preventDefault();
 43 | 
 44 |     async function _activate(activate: ActivateFunction): Promise<void> {
 45 |       setActivating(true);
 46 |       await activate(injected);
 47 |       setActivating(false);
 48 |     }
 49 | 
 50 |     _activate(activate);
 51 |   }
 52 | 
 53 |   // handle logic to eagerly connect to the injected ethereum provider, if it exists and has
 54 |   // granted access already
 55 |   const eagerConnectionSuccessful = useEagerConnect();
 56 | 
 57 |   // handle logic to connect in reaction to certain events on the injected ethereum provider,
 58 |   // if it exists
 59 |   useInactiveListener(!eagerConnectionSuccessful);
 60 | 
 61 |   return (
 62 |     <button
 63 |       disabled={active}
 64 |       style={{
 65 |         cursor: active ? 'not-allowed' : 'pointer',
 66 |         borderColor: activating ? 'orange' : active ? 'unset' : 'green'
 67 |       }}
 68 |       onClick={handleActivate}
 69 |     >
 70 |       Connect
 71 |     </button>
 72 |   );
 73 | }
 74 | 
 75 | function DisconnectWallet(): ReactElement {
 76 |   const context = useWeb3React<Provider>();
 77 |   const { deactivate, active } = context;
 78 | 
 79 |   function handleDeactivate(event: MouseEvent<HTMLButtonElement>): void {
 80 |     event.preventDefault();
 81 | 
 82 |     deactivate();
 83 |   }
 84 | 
 85 |   return (
 86 |     <button
 87 |       disabled={!active}
 88 |       style={{
 89 |         cursor: active ? 'pointer' : 'not-allowed',
 90 |         borderColor: active ? 'red' : 'unset'
 91 |       }}
 92 |       onClick={handleDeactivate}
 93 |     >
 94 |       Disconnect
 95 |     </button>
 96 |   );
 97 | }
 98 | 
 99 | export function WalletConnector(): ReactElement {
100 |   const context = useWeb3React<Provider>();
101 |   const { error } = context;
102 | 
103 |   if (!!error) {
104 |     window.alert(getErrorMessage(error));
105 |   }
106 | 
107 |   return (
108 |     <div>
109 |       <ConnectWallet />
110 |       <DisconnectWallet />
111 |     </div>
112 |   );
113 | }
114 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | Crypto Casino
 2 | ===========
 3 | 
 4 | ### Overview
 5 | _Crypto Casino_ is a web-based game, built on blockchain technology. It will utilize the blockchain to record and verify transactions that occur within the game, such as actions or task a player completes. Crypto Casino is a collection of casino games that will be played on a front end web application, with transactions recorded on the blockchain. This includes games such as blackjack, roulette, and slots.
 6 | 
 7 | Ultimately, we plan to use this project as a learning experience for blockchain development. The project is licensed under [GPL v3.0](https://github.com/jweiss0/OSS-CryptoCasino/blob/main/LICENSE) to ensure it maintains an open source status and can be used by others in the community to learn blockchain development. Much of the project is not set in stone, leaving it up to the developers and community to modify the plans for the project as they see fit.
 8 | 
 9 | ## Development
10 | This project is currently under development, utilizing React + Typescript for the front end with Solidity + Hardhat for the smart contract back end. We plan to deploy the smart contracts to the _Polygon_ network, but this is subject to change. For testing purposes, the Localhost network and Matic Mumbai network are used.
11 | ### Front End
12 | #### Running Local Project in Development Mode
13 | - Navigate to the `frontend` folder
14 | - Run `$ npm install`
15 | - Run `$ npm start`
16 | - Open http://localhost:3000 to view in browser
17 | ### Back End
18 | #### Configuring and Using Hardhat Environment
19 | - Navigate to project root folder
20 | - Run `$ npm install`
21 | 
22 | #### Hardhat Tasks
23 | ```shell
24 | npx hardhat accounts
25 | npx hardhat compile
26 | npx hardhat clean
27 | npx hardhat test
28 | npx hardhat node
29 | npx hardhat help
30 | REPORT_GAS=true npx hardhat test
31 | npx hardhat coverage
32 | npx hardhat run scripts/deploy.ts
33 | TS_NODE_FILES=true npx ts-node scripts/deploy.ts
34 | npx eslint '**/*.{js,ts}'
35 | npx eslint '**/*.{js,ts}' --fix
36 | npx prettier '**/*.{json,sol,md}' --check
37 | npx prettier '**/*.{json,sol,md}' --write
38 | npx solhint 'contracts/**/*.sol'
39 | npx solhint 'contracts/**/*.sol' --fix
40 | ```
41 | 
42 | #### Local Network Deployment
43 | - Run `$ npx hardhat node` in a terminal
44 | - Run `$ npx hardhat run --network localhost scripts/deploy.ts` in a different terminal
45 | 
46 | <!-- #### Etherscan Verification
47 | To try out Etherscan verification, first deploy a contract to an Ethereum network that's supported by Etherscan, such as Ropsten.
48 | 
49 | In this project, copy the .env.example file to a file named .env, and then edit it to fill in the details. Enter your Etherscan API key, your Ropsten node URL (eg from Alchemy), and the private key of the account which will send the deployment transaction. With a valid .env file in place, first deploy your contract:
50 | 
51 | ```shell
52 | hardhat run --network ropsten scripts/sample-script.ts
53 | ```
54 | 
55 | Then, copy the deployment address and paste it in to replace `DEPLOYED_CONTRACT_ADDRESS` in this command:
56 | 
57 | ```shell
58 | npx hardhat verify --network ropsten DEPLOYED_CONTRACT_ADDRESS "Hello, Hardhat!"
59 | ```
60 | #### Performance Optimizations
61 | For faster runs of tests and scripts, consider skipping ts-node's type checking by setting the environment variable `TS_NODE_TRANSPILE_ONLY` to `1` in hardhat's environment. For more details see [the documentation](https://hardhat.org/guides/typescript.html#performance-optimizations). -->
62 | 
63 | ## Team
64 | | **Name** | **GitHub Handle** |
65 | |:------:|:-------:|
66 | | Jeremy Weiss | jweiss0 | 
67 | | Eugene Rozental | eugrro |
68 | | Kevin Cruz | kevtlw |
69 | | Brandon Red | brandon-red |
70 | | Ben Xu | x-u-b |
71 | 
72 | ## License
73 | GPL v3.0
74 | 


--------------------------------------------------------------------------------
/contracts/CasinoGame.sol:
--------------------------------------------------------------------------------
 1 | // SPDX-License-Identifier: GPL v3.0
 2 | pragma solidity ^0.8.4;
 3 | 
 4 | import "@openzeppelin/contracts/access/Ownable.sol";
 5 | 
 6 | interface CasinoInterface {
 7 |     function payWinnings(address _to, uint256 _amount) external;
 8 |     function transferFrom(address _from, uint256 _amount) external;
 9 | }
10 | 
11 | interface ChipInterface {
12 |     function balanceOf(address account) external view returns (uint256);
13 |     function casinoTransferFrom(address _from, address _to, uint256 _value) external;
14 | }
15 | 
16 | /* The CasinoGame contract defines top-level state variables
17 | *  and functions that all casino games must have. More game-specific
18 | *  variables and functions will be defined in subclasses that inherit it.
19 | */
20 | abstract contract CasinoGame is Ownable {
21 | 
22 |     // State variables
23 |     CasinoInterface private casinoContract;
24 |     ChipInterface private chipContract;
25 |     uint256 internal minimumBet;
26 |     uint256 internal maximumBet;
27 |     mapping (address => bool) internal roundInProgress;
28 |     
29 |     // Events (to be emitted)
30 |     event ContractPaid(address player, uint256 amount);
31 |     event RewardPaid(address player, uint256 amount);
32 | 
33 |     // Constructor for initial state values
34 |     constructor(uint256 _minBet, uint256 _maxBet) {
35 |         minimumBet = _minBet;
36 |         maximumBet = _maxBet;
37 |     }
38 | 
39 |     // Sets the address of the Casino contract.
40 |     function setCasinoContractAddress(address _address) external onlyOwner {
41 |         casinoContract = CasinoInterface(_address);
42 |     }
43 | 
44 |     // Sets the address of the Chip contract.
45 |     function setChipContractAddress(address _address) external onlyOwner {
46 |         chipContract = ChipInterface(_address);
47 |     }
48 | 
49 | 
50 |     // Sets the minimum bet required for all casino games.
51 |     function setMinimumBet(uint256 _bet) external onlyOwner {
52 |         require(_bet >= 0, "Bet is too low.");
53 |         minimumBet = _bet;
54 |     }
55 |     
56 |     // Sets the maximum bet allowed for all casino games.
57 |     function setMaximumBet(uint256 _bet) external onlyOwner {
58 |         require(_bet >= 0, "Bet is too high.");
59 |         maximumBet = _bet;
60 |     }
61 | 
62 |      // Sets the value of roundInProgress to true or false for a player.
63 |     function setRoundInProgress(address _address, bool _isPlaying) internal {
64 |         roundInProgress[_address] = _isPlaying;
65 |     }
66 | 
67 |     // Getters
68 |     function getCasinoContractAddress() public view returns (address) {return address(casinoContract);}
69 |     function getChipContractAddress() public view returns (address) {return address(chipContract);}
70 |     function getMinimumBet() public view returns (uint256) {return minimumBet;}
71 |     function getMaximumBet() public view returns (uint256) {return maximumBet;}
72 |     function getRoundInProgress(address _address) public view returns (bool) {return roundInProgress[_address];}
73 | 
74 |     // Rewards the user for the specified amount if they have won
75 |     // anything from a casino game. Uses the Casino contract's payWinnings
76 |     // function to achieve this.
77 |     function rewardUser(address _user, uint256 _amount) internal {
78 |         require(_amount >= 0, "Not enough to withdraw.");
79 |         casinoContract.payWinnings(_user, _amount);
80 |         emit RewardPaid(_user, _amount);
81 |     }
82 | 
83 |     // Allows a user to place a bet by paying the contract the specified amount.
84 |     function payContract(address _address, uint256 _amount) internal {
85 |         require(chipContract.balanceOf(_address) >= _amount, "Not enough tokens.");
86 |         casinoContract.transferFrom(_address, _amount);
87 |         emit ContractPaid(_address, _amount);
88 |     }
89 | }


--------------------------------------------------------------------------------
/frontend/src/utils/hooks.ts:
--------------------------------------------------------------------------------
 1 | /* MIT License
 2 | Copyright (c) 2022 ChainShot
 3 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), 
 4 | to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 5 | and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
 6 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 7 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 8 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 
 9 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
10 | */
11 | 
12 | import { useWeb3React } from '@web3-react/core';
13 | import { useCallback, useEffect, useState } from 'react';
14 | import { injected } from './connectors';
15 | import { Provider } from './provider';
16 | 
17 | export function useEagerConnect(): boolean {
18 |   const { activate, active } = useWeb3React<Provider>();
19 | 
20 |   const [tried, setTried] = useState(false);
21 | 
22 |   // use useCallback() and useEffect() hooks together so that tryActivate() will only
23 |   // be called once when attempting eager connection
24 |   const tryActivate = useCallback((): void => {
25 |     async function _tryActivate() {
26 |       const isAuthorized = await injected.isAuthorized();
27 | 
28 |       if (isAuthorized) {
29 |         try {
30 |           await activate(injected, undefined, true);
31 |         } catch (error: any) {
32 |           window.alert(
33 |             'Error!' + (error && error.message ? `\n\n${error.message}` : '')
34 |           );
35 |         }
36 |       }
37 | 
38 |       setTried(true);
39 |     }
40 | 
41 |     _tryActivate();
42 |   }, [activate]);
43 | 
44 |   useEffect((): void => {
45 |     tryActivate();
46 |   }, [tryActivate]);
47 | 
48 |   // if the connection worked, wait until we get confirmation of that to flip the flag
49 |   useEffect((): void => {
50 |     if (!tried && active) {
51 |       setTried(true);
52 |     }
53 |   }, [tried, active]);
54 | 
55 |   return tried;
56 | }
57 | 
58 | export function useInactiveListener(suppress: boolean = false): void {
59 |   const { active, error, activate } = useWeb3React<Provider>();
60 | 
61 |   useEffect((): (() => void) | undefined => {
62 |     const { ethereum } = window as any;
63 | 
64 |     if (ethereum && ethereum.on && !active && !error && !suppress) {
65 |       const handleConnect = (): void => {
66 |         console.log("Handling 'connect' event");
67 |         activate(injected);
68 |       };
69 | 
70 |       const handleChainChanged = (chainId: string | number): void => {
71 |         console.log("Handling 'chainChanged' event with payload", chainId);
72 |         activate(injected);
73 |       };
74 | 
75 |       const handleAccountsChanged = (accounts: string[]): void => {
76 |         console.log("Handling 'accountsChanged' event with payload", accounts);
77 |         if (accounts.length > 0) {
78 |           activate(injected);
79 |         }
80 |       };
81 | 
82 |       ethereum.on('connect', handleConnect);
83 |       ethereum.on('chainChanged', handleChainChanged);
84 |       ethereum.on('accountsChanged', handleAccountsChanged);
85 | 
86 |       // cleanup function
87 |       return (): void => {
88 |         if (ethereum.removeListener) {
89 |           ethereum.removeListener('connect', handleConnect);
90 |           ethereum.removeListener('chainChanged', handleChainChanged);
91 |           ethereum.removeListener('accountsChanged', handleAccountsChanged);
92 |         }
93 |       };
94 |     }
95 |   }, [active, error, suppress, activate]);
96 | }
97 | 


--------------------------------------------------------------------------------
/contracts/Roulette.sol:
--------------------------------------------------------------------------------
  1 | // SPDX-License-Identifier: GPL v3.0
  2 | pragma solidity ^0.8.4;
  3 | 
  4 | import "@openzeppelin/contracts/access/Ownable.sol";
  5 | import "./CasinoGame.sol";
  6 | 
  7 | /* Bet types:
  8 |     - 0 = Red, Black, Even, Odd, Low, High (Pays even)
  9 |     - 1 = Column, Dozen (Pays 2:1)
 10 |     - 2 = Line (Pays 5:1)
 11 |     - 3 = Corner (Pays 8:1)
 12 |     - 4 = Street (Pays 11:1)
 13 |     - 5 = Split (Pays 17:1)
 14 |     - 6 = Single (Pays 35:1)
 15 | */
 16 | struct RoulettePlayer {
 17 |     uint8 betType;
 18 |     uint256 bet;
 19 |     uint8[] betNums;
 20 | }
 21 | 
 22 | contract Roulette is Ownable, CasinoGame {
 23 |     // State variables
 24 |     mapping (address => RoulettePlayer) private rGames;
 25 |     uint256 private nonce = 0;
 26 | 
 27 |     // Events (to be emitted)
 28 |     event NewRound(address player, uint256 initialBet);
 29 |     event PlayerSpinComplete(address player, uint8 spinNum);
 30 |     event RoundResult(address player, uint256 payout);
 31 | 
 32 |     // Constructor for initial state values, including calling parent constructor
 33 |     constructor(uint256 _minBet, uint256 _maxBet) CasinoGame(_minBet, _maxBet) {}
 34 |     
 35 |     // Handles the initial start of a roulette round. First pays the initial bet
 36 |     //  to the contract, then sets the state of the round in progress to true.
 37 |     //  Finishes by calling the spin() function to begin the game.
 38 |     function playRound(uint256 _betAmount, uint8 _betType, uint8[] memory _betNums) external {
 39 |         // Only start the round if player is not in the middle of a game or an existing round.
 40 |         // Check that the paid bet is large enough.
 41 |         require(roundInProgress[msg.sender] == false, "Already playing game.");
 42 |         require(_betAmount >= minimumBet, "Bet is too small.");
 43 |         require(_betAmount <= maximumBet, "Bet is too large.");
 44 | 
 45 |         // Place the user's initial bet using a CasinoGame parent function
 46 |         payContract(msg.sender, _betAmount);
 47 | 
 48 |         //  Initialize new game round
 49 |         setRoundInProgress(msg.sender, true);
 50 | 
 51 |         // Let front end know a new round has begun
 52 |         emit NewRound(msg.sender, _betAmount);
 53 | 
 54 |         // Handle initial spin
 55 |         spin(msg.sender, _betAmount, _betType, _betNums);
 56 |     }
 57 | 
 58 |     // Handles creating a new RoulettePlayer to store player attributes.
 59 |     //  Selects a random number for the game, emits an event to notify listeners, then ends the game.
 60 |     function spin(address _playerAddress, uint256 _bet, uint8 _betType, uint8[] memory _betNums) private {
 61 |         require(roundInProgress[_playerAddress] == true, "Not playing round.");
 62 |         RoulettePlayer storage player = rGames[_playerAddress];
 63 | 
 64 |         player.bet = _bet;
 65 |         player.betType = _betType;
 66 |         player.betNums = _betNums;
 67 | 
 68 |         // Select random number on roulette board
 69 |         uint8 rnd = uint8(rand(38));
 70 |         if(rnd == 37)
 71 |             rnd = 0;
 72 | 
 73 |         emit PlayerSpinComplete(_playerAddress, rnd); 
 74 |         endRound(_playerAddress, rnd);       
 75 |     }
 76 | 
 77 |     // Handles the end of a roulette round. It pays winnings, sets the roundInProgress
 78 |     // attribute to false. Then, it resets the RoulettePlayer attributes.
 79 |     function endRound(address _playerAddress, uint8 spinNum) private {
 80 |         require(roundInProgress[_playerAddress] == true, "Not playing round.");
 81 | 
 82 |         RoulettePlayer storage player = rGames[_playerAddress];
 83 |         uint256 totalPayout = 0;
 84 |         bool won = numInArray(spinNum, player.betNums);
 85 | 
 86 |         if(won) {
 87 |             // Begin by paying back initial bet
 88 |             totalPayout += player.bet;
 89 |             if(player.betType == 0)
 90 |                 totalPayout += player.bet; // Pays even
 91 |             else if(player.betType == 1)
 92 |                 totalPayout += player.bet * 2; // Pays 2:1
 93 |             else if(player.betType == 2)
 94 |                 totalPayout += player.bet * 5; // Pays 5:1
 95 |             else if(player.betType == 3)
 96 |                 totalPayout += player.bet * 8; // Pays 8:1
 97 |             else if(player.betType == 4)
 98 |                 totalPayout += player.bet * 11; // Pays 11:1
 99 |             else if(player.betType == 5)
100 |                 totalPayout += player.bet * 17; // Pays 17;1
101 |             else if(player.betType == 6)
102 |                 totalPayout += player.bet * 35; // Pays 35:1
103 |             
104 |             rewardUser(_playerAddress, totalPayout);
105 |         }
106 | 
107 |         emit RoundResult(_playerAddress, totalPayout);
108 | 
109 |         setRoundInProgress(_playerAddress, false);
110 |         resetRGame(_playerAddress);
111 |     }
112 | 
113 |     // Resets a RoulettePlayer and all the internal attributes.
114 |     // Currently not sure if we need to delete the arrays in the structs
115 |     //  before deleting rGames[_playerAddress] to avoid memory leaks?
116 |     function resetRGame(address _playerAddress) private {
117 |         RoulettePlayer storage player = rGames[_playerAddress];
118 |         // Reset attribute
119 |         delete player.betNums;
120 |         // Delete game entry in mapping
121 |         delete rGames[_playerAddress];
122 |     }
123 | 
124 |     // Returns true if the provided num is in the provided arr, otherwise false.
125 |     function numInArray(uint8 num, uint8[] memory arr) private pure returns(bool) {
126 |         for(uint i = 0; i < arr.length; i++) {
127 |             if(arr[i] == num)
128 |                 return true;
129 |         }
130 |         return false;
131 |     }
132 | 
133 |     // Generates a random number, 0 to _upper (non-inclusive), to be used for card selection.
134 |     // Not truly random, but good enough for the needs of this project.
135 |     // A mainnet application should use something like Chainlink VRF for this task instead.
136 |     function rand(uint256 _upper) public returns(uint256) {
137 |         uint256 seed = uint256(keccak256(abi.encodePacked(
138 |             block.timestamp + block.difficulty +
139 |             ((uint256(keccak256(abi.encodePacked(block.coinbase)))) / (block.timestamp)) +
140 |             block.gaslimit + 
141 |             ((uint256(keccak256(abi.encodePacked(msg.sender)))) / (block.timestamp)) +
142 |             block.number + nonce
143 |         )));
144 | 
145 |         nonce++;
146 | 
147 |         return (seed - ((seed / _upper) * _upper));
148 |     }
149 | }


--------------------------------------------------------------------------------
/frontend/src/BlackJack/blackjack.js:
--------------------------------------------------------------------------------
  1 | /**
  2 |  * Objects for cards and deck of cards
  3 |  */
  4 |  const cardValues = ["A", 2, 3, 4, 5, 6, 7, 8, 9, 10, "J", "Q", "K"];
  5 |  const suits = ["Spades", "Clubs", "Hearts", "Diamonds"];
  6 |  
  7 |  /**
  8 |   * this.suit takes an integer between 0 and 3 which corresponds to its index in the suits array
  9 |   * this.value is the number or face displayed on the card
 10 |   * this.cardVal is the actual value of the card in Blackjack
 11 |   *     Face cards = 10
 12 |   *     Ace = 11 or 1
 13 |   *     Numbers = their value
 14 |   */
 15 |  class Card{
 16 |      constructor(suit, value){
 17 |          this.suit = suits[suit];
 18 |          this.value = cardValues[value];
 19 |          //when constructing the deck, face cards have values of 11, 12, 13
 20 |          if (value >= 10){
 21 |              this.cardVal = 10;
 22 |          }
 23 |          //for aces
 24 |          else if (value == 0){
 25 |              this.cardVal = 11;
 26 |          }
 27 |          //for regular numbers
 28 |          else{
 29 |              this.cardVal = Number(value) + 1;
 30 |          }
 31 |      }
 32 |      getVal(){
 33 |          return this.cardVal;
 34 |      }
 35 |  }
 36 |  
 37 |  /**
 38 |   * Object for deck of 52 cards
 39 |   * shuffleDeck is the Fisher-Yates shuffling algorithm
 40 |   */
 41 |  class Deck{
 42 |     constructor(){
 43 |         this.deck = [];
 44 |         for (let i = 0; i < 4; i++){
 45 |             for (let j = 0; j < 13; j++){
 46 |                 let newCard = new Card(i, j);
 47 |                 this.deck.push(newCard);
 48 |             }
 49 |         }
 50 |     }
 51 |     shuffleDeck() {
 52 |     for (let i = this.deck.length - 1; i > 0; i--) {
 53 |         const j = Math.floor(Math.random() * (i + 1));
 54 |         [this.deck[i], this.deck[j]] = [this.deck[j], this.deck[i]];
 55 |     }
 56 |     return this.deck;
 57 |     }
 58 | 
 59 |     //deal a card by removing the first card from the array
 60 |     dealCard(){
 61 |         return this.deck.shift();
 62 |     }
 63 |  }
 64 | 
 65 |  /**
 66 |   * Player class for the user and dealer
 67 |   * this.hand holds each players cards
 68 |   * this.handValue gives us their score
 69 |   * this.numAces is tracked in order to decide if its value is one or eleven
 70 |   */
 71 |  class Player{
 72 |      constructor(){
 73 |         this.hand = [];
 74 |         this.handValue = 0;
 75 |         this.numAces = 0;
 76 |      }
 77 |      //add a card to the player's hand, update hand value
 78 |      addCard(card){
 79 |          this.hand.push(card);
 80 |          this.handValue += card.getVal();
 81 |      }
 82 |      //return true if a player "busts"(gets hand value over 21)
 83 |      bust(){
 84 |          if (this.handValue > 21){
 85 |              return true;
 86 |          }
 87 |          return false;
 88 |      }
 89 |      //return true if a player has blackjack (handvalue = 21)
 90 |      blackjack(){
 91 |          if (this.handValue == 21){
 92 |              return true;
 93 |          }
 94 |          return false;
 95 |      }
 96 |  }
 97 |  
 98 | /**
 99 |  * Blackjack game
100 |  * Start with a new deck and shuffle it
101 |  * Deal two cards to the player and the 'dealer'
102 |  */
103 | let newDeck = new Deck();
104 | newDeck.shuffleDeck();
105 | let p1 = new Player();
106 | let dealer = new Player();
107 |  
108 |  //deal initial hands
109 | p1.addCard(newDeck.dealCard());
110 | p1.addCard(newDeck.dealCard());
111 | dealer.addCard(newDeck.dealCard());
112 | dealer.addCard(newDeck.dealCard());
113 | 
114 | //check for player blackjack first
115 | if (p1.blackjack()){
116 |     endRound();
117 | }
118 | 
119 | //link html elements
120 | const p1Hand = document.getElementById("playerHand");
121 | const dealersHand = document.getElementById("dealerHand");
122 | const roundResult = document.getElementById("results");
123 | document.getElementById("playAgain").disabled = true;
124 | 
125 | 
126 | //update hand for dealer and player
127 | document.getElementById('playerScore').innerHTML = "Your score: " + String(p1.handValue);
128 | document.getElementById('dealerScore').innerHTML = "Dealer's score: " + String(dealer.handValue);
129 | p1Hand.innerHTML += `<div class="card">${p1.hand[0].value + " of " + p1.hand[0].suit}</div>`;
130 | p1Hand.innerHTML += `<div class="card">${p1.hand[1].value + " of " + p1.hand[1].suit}</div>`;
131 | dealersHand.innerHTML += `<div class="card">${dealer.hand[0].value + " of " + dealer.hand[0].suit}</div>`;
132 | dealersHand.innerHTML += `<div class="card">${dealer.hand[1].value + " of " + dealer.hand[1].suit}</div>`;
133 | 
134 | 
135 | //This function represents the player's turn, where they can choose to hit or end their turn by standing
136 | function playerTurn(playerChoice){
137 |     switch (playerChoice){
138 |         case 'hit':
139 |             let hitCard = newDeck.dealCard();
140 |             p1.addCard(hitCard);
141 |             p1Hand.innerHTML += `<div class="card">${p1.hand[p1.hand.length-1].value + " of " + p1.hand[p1.hand.length-1].suit}</div>`;
142 |             //p1Hand.insertAdjacentHTML('beforeend', `<div class="card">${p1.hand[p1.hand.length-1].value + " of " + p1.hand[p1.hand.length-1].suit}</div>`);
143 |             document.getElementById('playerScore').innerHTML = "Your Score: " + String(p1.handValue);
144 |             if (p1.bust()){
145 |                 endRound();
146 |             }
147 |             break;
148 |         case 'stand':
149 |             dealerTurn();
150 |             break;
151 |     }
152 | }
153 | 
154 | //In this function, the dealer plays out his hand
155 | //He will hit until he has 17 or higher
156 | function dealerTurn(){
157 |     if (dealer.handValue >= 17){
158 |         endRound();
159 |     }
160 |     else{
161 |         let hitCard = newDeck.dealCard();
162 |         dealer.addCard(hitCard);
163 |         dealersHand.innerHTML += `<div class="card">${dealer.hand[dealer.hand.length-1].value + " of " + dealer.hand[dealer.hand.length-1].suit}</div>`;
164 |         document.getElementById('dealerScore').innerHTML = "Dealer's score: " + String(dealer.handValue);
165 |         if (dealer.bust()){
166 |             endRound();
167 |         }
168 |         dealerTurn();
169 |     }
170 | }
171 | 
172 | //This function ends the round
173 | function endRound(){
174 |     document.getElementById("hitButton").disabled = true;
175 |     document.getElementById("standButton").disabled = true;
176 |     if (p1.bust()){
177 |         roundResult.innerHTML += "You Lose";
178 |     }
179 |     else if (dealer.bust()){
180 |         roundResult.innerHTML += "You Win";
181 |     }
182 |     else if (dealer.handValue > p1.handValue){
183 |         roundResult.innerHTML += "You Lose";
184 |     }
185 |     else if (p1.handValue > dealer.handValue){
186 |         roundResult.innerHTML += "You Win";
187 |     }
188 |     else{
189 |         roundResult.innerHTML += "It's a Draw";
190 |     }
191 |     document.getElementById("playAgain").disabled = false;
192 | }
193 | 
194 | //This function resets the board so another round can be played (WIP)
195 | function restart(){
196 |     p1.hand = [];
197 |     p1.handValue = 0;
198 |     p1.numAces = 0;
199 |     dealer.hand = [];
200 |     dealer.handValue = 0;
201 |     dealer.numAces = 0;
202 |     document.getElementById("playerScore").innerHTML = "Your Score: 0";
203 |     document.getElementById("dealerScore").innerHTML = "Dealer's Score: 0";
204 |     document.getElementById("playerHand").innerHTML = "<p>Your Hand:</p>";
205 |     document.getElementById("dealerHand").innerHTML = "<p>Dealer's Hand:</p>";
206 |     document.getElementById("results").innerHTML = "Result: ";
207 | 
208 |     //deal initial hands
209 |     p1.addCard(newDeck.dealCard());
210 |     p1.addCard(newDeck.dealCard());
211 |     dealer.addCard(newDeck.dealCard());
212 |     dealer.addCard(newDeck.dealCard());
213 | 
214 |     //check for player blackjack first
215 |     if (p1.blackjack()){
216 |         endRound();
217 |     }
218 | 
219 |     //link html elements
220 |     //const p1Hand = document.getElementById("playerHand");
221 |     //const dealersHand = document.getElementById("dealerHand");
222 |     //const roundResult = document.getElementById("results");
223 |     document.getElementById("playAgain").disabled = true;
224 |     document.getElementById("hitButton").disabled = false;
225 |     document.getElementById("standButton").disabled = false;
226 | 
227 |     //update hand for dealer and player
228 |     document.getElementById('playerScore').innerHTML = "Your score: " + String(p1.handValue);
229 |     document.getElementById('dealerScore').innerHTML = "Dealer's score: " + String(dealer.handValue);
230 |     document.getElementById("playerHand").innerHTML += `<div class="card">${p1.hand[0].value + " of " + p1.hand[0].suit}</div>`;
231 |     p1Hand.innerHTML += `<div class="card">${p1.hand[1].value + " of " + p1.hand[1].suit}</div>`;
232 |     //dealersHand.innerHTML += `<div class="card">${dealer.hand[0].value + " of " + dealer.hand[0].suit}</div>`;
233 |     //dealersHand.innerHTML += `<div class="card">${dealer.hand[1].value + " of " + dealer.hand[1].suit}</div>`;
234 | }
235 | 


--------------------------------------------------------------------------------
/frontend/src/components/casinoGames/Blackjack/Blackjack.tsx:
--------------------------------------------------------------------------------
  1 | import { ReactElement, useEffect, useState } from 'react';
  2 | import { useWeb3React } from '@web3-react/core';
  3 | import { Contract, ethers, Signer } from 'ethers';
  4 | import { BlackjackContractAddr, CasinoContractAddr, ChipContractAddr } from '../../../utils/environment';
  5 | import BlackjackArtifacts from '../../../artifacts/contracts/Blackjack.sol/Blackjack.json';
  6 | import ChipArtifacts from '../../../artifacts/contracts/Chip.sol/Chip.json';
  7 | import { Provider } from '../../../utils/provider';
  8 | import { BlackjackHand } from '../../../utils/types';
  9 | import Card from "react-free-playing-cards/lib/TcN";
 10 | import './Blackjack.css';
 11 | 
 12 | export function Blackjack(): ReactElement {
 13 |     const context = useWeb3React<Provider>();
 14 |     const { library, active } = context;
 15 |     const [signer, setSigner] = useState<Signer>();
 16 |     const [blackjackContract, setBlackjackContract] = useState<Contract>();
 17 |     const [chipContract, setChipContract] = useState<Contract>();
 18 |     const [minBet, setMinBet] = useState<number>(1); // not stored in wei
 19 |     const [maxBet, setMaxBet] = useState<number>(50);  // not stored in wei
 20 |     const [bet, setBet] = useState<number>(1);  // not stored in wei
 21 |     const [inProgress, setInProgress] = useState<boolean>(false);
 22 |     const [playerTurn, setPlayerTurn] = useState<boolean>(false);
 23 |     const [playerHand1, setPlayerHand1] = useState<BlackjackHand>();
 24 |     const [playerHand2, setPlayerHand2] = useState<BlackjackHand>();
 25 |     const [playerHand3, setPlayerHand3] = useState<BlackjackHand>();
 26 |     const [playerHand4, setPlayerHand4] = useState<BlackjackHand>();
 27 |     const [dealerHand, setDealerHand] = useState<BlackjackHand>();
 28 |     const [roundResult, setRoundResult] = useState<number>(-1);
 29 |     const [roundEnd, setRoundEnd] = useState<boolean>(false);
 30 | 
 31 |     // Get connected wallet information
 32 |     useEffect((): void => {
 33 |         if (!library) {
 34 |             setSigner(undefined);
 35 |             return;
 36 |         }
 37 | 
 38 |         setSigner(library.getSigner());
 39 |     }, [library]);
 40 | 
 41 |     // Get Blackjack contract read/write connection
 42 |     useEffect((): void => {
 43 |         if (blackjackContract || !signer)
 44 |             return;
 45 | 
 46 |         if (!BlackjackContractAddr)
 47 |             return;
 48 | 
 49 |         const blackjackContractInstance = new ethers.Contract(BlackjackContractAddr, BlackjackArtifacts.abi, signer);
 50 |         setBlackjackContract(blackjackContractInstance);
 51 | 
 52 |         console.log("Connected to Blackjack contract.");
 53 |     }, [blackjackContract, signer]);
 54 | 
 55 |     // Get Chip contract read/write connection
 56 |     useEffect((): void => {
 57 |         if (chipContract || !signer)
 58 |             return;
 59 | 
 60 |         if (!ChipContractAddr)
 61 |             return;
 62 | 
 63 |         const chipContractInstance = new ethers.Contract(ChipContractAddr, ChipArtifacts.abi, signer);
 64 |         setChipContract(chipContractInstance);
 65 | 
 66 |         console.log("Connected to Chip contract.");
 67 |     }, [chipContract, signer]);
 68 | 
 69 |     // Get minimum and maximum bet values
 70 |     useEffect((): void => {
 71 |         async function getMinBet(): Promise<void> {
 72 |             if (!blackjackContract)
 73 |                 return;
 74 | 
 75 |             const _minBet = await blackjackContract.getMinimumBet();
 76 |             if (_minBet !== minBet) {
 77 |                 setMinBet(_minBet);
 78 |             }
 79 |         }
 80 | 
 81 |         async function getMaxBet(): Promise<void> {
 82 |             if (!blackjackContract) {
 83 |                 return;
 84 |             }
 85 | 
 86 |             const _maxBet = await blackjackContract.getMaximumBet();
 87 |             if (_maxBet !== maxBet) {
 88 |                 setMaxBet(_maxBet);
 89 |             }
 90 |         }
 91 | 
 92 |         getMinBet();
 93 |         getMaxBet();
 94 |     }, []);
 95 | 
 96 |     // Event listeners for Blackjack events
 97 |     const contractPaidEvent = (player: string, amount: Number): void => {
 98 |         console.log("Contract Paid Event:");
 99 |         console.log(player);
100 |         console.log(amount);
101 |     }
102 |     const playerCardsUpdatedEvent = (player: string, hand1: BlackjackHand, hand2: BlackjackHand, hand3: BlackjackHand, hand4: BlackjackHand, numHands: Number): void => {
103 |         console.log("Player Cards Updated.");
104 |         const newPlayerHand1: BlackjackHand = hand1;
105 |         const newPlayerHand2: BlackjackHand = hand2;
106 |         const newPlayerHand3: BlackjackHand = hand3;
107 |         const newPlayerHand4: BlackjackHand = hand4;
108 |         setPlayerHand1(newPlayerHand1);
109 |         setPlayerHand2(newPlayerHand2);
110 |         setPlayerHand3(newPlayerHand3);
111 |         setPlayerHand4(newPlayerHand4);
112 |         console.log(newPlayerHand1);
113 |     }
114 |     const dealerCardsUpdatedEvent = (player: string, hand: BlackjackHand): void => {
115 |         console.log("Dealer Cards Updated.");
116 |         const newDealerHand: BlackjackHand = hand;
117 |         setDealerHand(newDealerHand);
118 |         console.log(newDealerHand);
119 |     }
120 |     const playerTurnEndEvent = (player: string): void => {
121 |         console.log("Player Turn Ended.");
122 |         setPlayerTurn(false);
123 |     }
124 |     const playerBlackjackEvent = (player: string): void => {
125 |         console.log("Player has Blackjack!");
126 |     }
127 |     const dealerBlackjackEvent = (player: string): void => {
128 |         console.log("Dealer has Blackjack!");
129 |     }
130 |     const roundResultEvent = (player: string, payout: string): void => {
131 |         const roundRes = Number(BigInt(payout) / BigInt("1000000000000000000")).valueOf();
132 |         setRoundResult(roundRes);
133 |         // setPlayerTurn(false);
134 |         setRoundEnd(true);
135 |         console.log("Round result payout: " + roundRes);
136 |     }
137 |     useEffect((): () => void => {
138 |         let wallet;
139 |         async function getWalletAddress(): Promise<void> {
140 |             if(!signer)
141 |                 return;
142 |             const _wallet: string = await signer?.getAddress();
143 |             wallet = _wallet;
144 |         }
145 | 
146 |         getWalletAddress();
147 |         blackjackContract?.on(blackjackContract?.filters.ContractPaid(wallet, null), contractPaidEvent);
148 |         blackjackContract?.on(blackjackContract?.filters.PlayerCardsUpdated(wallet, null, null, null, null), playerCardsUpdatedEvent);
149 |         blackjackContract?.on(blackjackContract?.filters.DealerCardsUpdated(wallet, null), dealerCardsUpdatedEvent);
150 |         blackjackContract?.on(blackjackContract?.filters.PlayerTurnEnd(wallet), playerTurnEndEvent);
151 |         blackjackContract?.on(blackjackContract?.filters.PlayerBlackjack(wallet), playerBlackjackEvent);
152 |         blackjackContract?.on(blackjackContract?.filters.DealerBlackjack(wallet), dealerBlackjackEvent);
153 |         blackjackContract?.on(blackjackContract?.filters.RoundResult(wallet, null), roundResultEvent);
154 | 
155 |         return () => {
156 |             blackjackContract?.off('ContractPaid', contractPaidEvent);
157 |             blackjackContract?.off('PlayerCardsUpdated', playerCardsUpdatedEvent);
158 |             blackjackContract?.off('DealerCardsUpdated', dealerCardsUpdatedEvent);
159 |             blackjackContract?.off('PlayerTurnEnd', playerTurnEndEvent);
160 |             blackjackContract?.off('PlayerBlackjack', playerBlackjackEvent);
161 |             blackjackContract?.off('DealerBlackjack', dealerBlackjackEvent);
162 |             blackjackContract?.off('RoundResult', roundResultEvent);
163 |         };
164 |     }, [blackjackContract, signer]);
165 | 
166 |     // Handle "Play Round" button click
167 |     async function handlePlayRound(): Promise<void> {
168 |         if (!blackjackContract || !chipContract)
169 |             return;
170 | 
171 |         if (bet < minBet || bet > maxBet) {
172 |             window.alert('Error!\n\nBet must be between ' +  minBet + ' and ' + maxBet + '.');
173 |             return;
174 |         }
175 | 
176 |         const weiBet: string = bet.toString() + "000000000000000000"; // Convert bet to wei
177 |         // First approve contract to take CHIPs on user's behalf
178 |         try {
179 |             const approveTxn = await chipContract.approve(CasinoContractAddr, weiBet); 
180 |             await approveTxn.wait();
181 |         } catch (error: any) {
182 |             window.alert('Error!' + (error && error.message ? `\n\n${error.message}` : ''));
183 |         }
184 | 
185 |         // Then call playRound function
186 |         try {
187 |             const playRoundTxn = await blackjackContract.playRound(weiBet);
188 |             await playRoundTxn.wait();
189 |         } catch (error: any) {
190 |             window.alert('Error!' + (error && error.message ? `\n\n${error.message}` : ''));
191 |         }
192 | 
193 |         setInProgress(true);
194 |         setPlayerTurn(true);
195 |     }
196 | 
197 |     async function handleHitPlayer(): Promise<void> {
198 |         if(!blackjackContract)
199 |             return;
200 | 
201 |         if(!playerTurn) {
202 |             window.alert('Error!\n\nIt is no longer your turn!');
203 |             return;
204 |         }
205 | 
206 |         try {
207 |             const hitPlayerTxn = await blackjackContract.hitPlayer(0);
208 |             await hitPlayerTxn.wait();
209 |         } catch (error: any) {
210 |             window.alert('Error!' + (error && error.message ? `\n\n${error.message}` : ''));
211 |         }
212 |     }
213 | 
214 |     async function handleStandPlayer(): Promise<void> {
215 |         if(!blackjackContract)
216 |             return;
217 | 
218 |         if(!playerTurn) {
219 |             window.alert('Error!\n\nIt is no longer your turn!');
220 |             return;
221 |         }
222 | 
223 |         try {
224 |             const standPlayerTxn = await blackjackContract.standPlayer();
225 |             await standPlayerTxn.wait();
226 |         } catch (error: any) {
227 |             window.alert('Error!' + (error && error.message ? `\n\n${error.message}` : ''));
228 |         }
229 |     }
230 | 
231 |     const handleIncreaseBet = () => {
232 |         if(bet + 1 <= maxBet) {
233 |             const newBet = bet + 1;
234 |             setBet(newBet);
235 |         }
236 |     }
237 | 
238 |     const handleDecreaseBet = () => {
239 |         if(bet - 1 >= minBet) {
240 |             const newBet = bet - 1;
241 |             setBet(newBet);
242 |         }
243 |     }
244 | 
245 |     // Reset states
246 |     const handlePlayAgain = () => {
247 |         setInProgress(false);
248 |         setBet(minBet);
249 |         setPlayerHand1(undefined);
250 |         setPlayerHand2(undefined);
251 |         setPlayerHand3(undefined);
252 |         setPlayerHand4(undefined);
253 |         setDealerHand(undefined);
254 |         setRoundResult(-1);
255 |         setRoundEnd(false);
256 |     }
257 | 
258 |     return (
259 |         <div className="blackjack-page">
260 |             <h3>Total Bet: {bet}</h3>
261 |             {!inProgress ? 
262 |                 <div>
263 |                     <div>
264 |                         {bet > minBet ? <button className="game-btn btn-dec" onClick={handleDecreaseBet}>↓</button> : <></>}
265 |                         {bet < maxBet ? <button className="game-btn btn-inc" onClick={handleIncreaseBet}>↑</button> : <></>}
266 |                     </div>
267 |                     <button
268 |                         disabled={!active || !blackjackContract ? true : false}
269 |                         style={{
270 |                             cursor: !active || !blackjackContract ? 'not-allowed' : 'pointer',
271 |                             borderColor: !active || !blackjackContract ? 'unset' : 'blue'
272 |                         }}
273 |                         onClick={handlePlayRound}
274 |                     >
275 |                         Play Round
276 |                     </button>
277 |                 </div>
278 |             : <></>
279 |             }
280 |             {playerTurn ? 
281 |                 <div>
282 |                     <button
283 |                         disabled={!active || !blackjackContract ? true : false}
284 |                         style={{
285 |                             cursor: !active || !blackjackContract ? 'not-allowed' : 'pointer',
286 |                             borderColor: !active || !blackjackContract ? 'unset' : 'blue'
287 |                         }}
288 |                         onClick={handleHitPlayer}
289 |                     >
290 |                         Hit
291 |                     </button>
292 |                     <button
293 |                         disabled={!active || !blackjackContract ? true : false}
294 |                         style={{
295 |                             cursor: !active || !blackjackContract ? 'not-allowed' : 'pointer',
296 |                             borderColor: !active || !blackjackContract ? 'unset' : 'blue'
297 |                         }}
298 |                         onClick={handleStandPlayer}
299 |                     >
300 |                         Stand
301 |                     </button>
302 |                 </div>
303 |             : <></>
304 |             }
305 | 
306 |             {playerHand1 && inProgress ? <h4>Player Hand</h4> : <></>}
307 |             <div className="card-list">
308 |                 {playerHand1 && playerHand1.cSuits && playerHand1.cVals && inProgress ? 
309 |                     playerHand1.cVals.map((cardVal, i) => {
310 |                         return (<Card key={i} height="200px" card={(cardVal === "10" ? "T" : cardVal)+playerHand1.cSuits[i].charAt(0).toLowerCase()}/>)
311 |                     })
312 |                     : <></>}   
313 |             </div>
314 |             <br/>
315 |             {playerHand1 && inProgress ? <h4>Dealer Hand</h4> : <></>}
316 |             <div className="card-list">
317 |                 {dealerHand && dealerHand.cSuits && dealerHand.cVals && inProgress ? 
318 |                     dealerHand.cVals.map((cardVal, i) => {
319 |                         return (<Card key={i} height="200px" card={(cardVal === "10" ? "T" : cardVal)+dealerHand.cSuits[i].charAt(0).toLowerCase()} 
320 |                                     back={i === 0 && !(roundResult > -1 && roundEnd)}/>)
321 |                     })
322 |                     : <></>}
323 |             </div>
324 | 
325 |             {roundResult > -1 && roundEnd ?
326 |                 <div>
327 |                     {roundResult > bet ? <span><h2>You Win! 🎉</h2><h3>{roundResult-bet} CHIPs</h3><p>(+{bet} back)</p></span> : roundResult < bet ? <h2>You Lose! 💸</h2> : <h2>Tie! 🤝</h2>}
328 |                     <button onClick={handlePlayAgain}>Play Again</button>
329 |                 </div> : <></>
330 |             }
331 |         </div>
332 |     );
333 | }
334 | 
335 | export default Blackjack;


--------------------------------------------------------------------------------
/frontend/src/pages/RoulettePage.tsx:
--------------------------------------------------------------------------------
  1 | import { useState } from "react";
  2 | import { Wheel } from "react-custom-roulette";
  3 | import { useRoulette } from "../hooks/useRoulette";
  4 | 
  5 | const numbers = [
  6 |   "00",
  7 |   27,
  8 |   10,
  9 |   25,
 10 |   29,
 11 |   12,
 12 |   8,
 13 |   19,
 14 |   31,
 15 |   18,
 16 |   6,
 17 |   21,
 18 |   33,
 19 |   16,
 20 |   4,
 21 |   23,
 22 |   35,
 23 |   14,
 24 |   2,
 25 |   0,
 26 |   28,
 27 |   9,
 28 |   26,
 29 |   30,
 30 |   11,
 31 |   7,
 32 |   20,
 33 |   32,
 34 |   17,
 35 |   5,
 36 |   22,
 37 |   34,
 38 |   15,
 39 |   3,
 40 |   24,
 41 |   36,
 42 |   13,
 43 |   1,
 44 | ];
 45 | 
 46 | const data = numbers.map((number, index) => {
 47 |   let n = number.toString();
 48 | 
 49 |   if (index === 0 || index === 19) {
 50 |     return { option: n, style: { backgroundColor: "green" } };
 51 |   } else if (index % 2 === 0) {
 52 |     return { option: n, style: { backgroundColor: "black" } };
 53 |   } else {
 54 |     return { option: n, style: { backgroundColor: "red" } };
 55 |   }
 56 | });
 57 | 
 58 | const getRandomNumber = () => {
 59 |   return Math.floor(Math.random() * data.length);
 60 | };
 61 | 
 62 | interface Win {
 63 |   option: string;
 64 |   color: string;
 65 | }
 66 | 
 67 | export const RoulettePage = () => {
 68 |   const [mustStartSpinning, setMustStartSpinning] = useState(false);
 69 |   const [prizeNumber, setPrizeNumber] = useState(getRandomNumber());
 70 |   const [previousWins, setPreviousWins] = useState<Win[]>([]);
 71 |   const roulette = useRoulette();
 72 | 
 73 |   const handleClick = () => {
 74 |     const bets = [
 75 |       roulette.straightUps,
 76 |       roulette.zeros,
 77 |       roulette.oddEven,
 78 |       roulette.redBlack,
 79 |       roulette.highLow,
 80 |       roulette.dozens,
 81 |       roulette.columns,
 82 |     ]
 83 |       .flat(Infinity)
 84 |       .filter((v) => v !== 0);
 85 | 
 86 |     if (bets.length === 0) {
 87 |       alert("You must make a bet to play the game!");
 88 |       return;
 89 |     }
 90 | 
 91 |     const newPrizeNumber = Math.floor(Math.random() * data.length);
 92 |     setPrizeNumber(newPrizeNumber);
 93 |     setMustStartSpinning(true);
 94 |   };
 95 | 
 96 |   const checkWins = () => {
 97 |     let win = 0;
 98 | 
 99 |     if (roulette.zeros[0] !== 0) {
100 |       if (data[prizeNumber].option === "0") {
101 |         win += roulette.zeros[0] * (1 + 1 / 37);
102 |       } else {
103 |         win -= roulette.zeros[0];
104 |       }
105 |     }
106 | 
107 |     if (roulette.zeros[1] !== 0) {
108 |       if (data[prizeNumber].option === "00") {
109 |         win += roulette.zeros[1] * (1 + 1 / 37);
110 |       } else {
111 |         win -= roulette.zeros[1];
112 |       }
113 |     }
114 | 
115 |     if (roulette.oddEven[0] !== 0) {
116 |       if (parseInt(data[prizeNumber].option) % 2 !== 0) {
117 |         win += roulette.oddEven[0] * (1 + (1 + 1 / 9));
118 |       } else {
119 |         win -= roulette.oddEven[0];
120 |       }
121 |     }
122 | 
123 |     if (roulette.oddEven[1] !== 0) {
124 |       if (parseInt(data[prizeNumber].option) % 2 === 0) {
125 |         win += roulette.oddEven[1] * (1 + (1 + 1 / 9));
126 |       } else {
127 |         win -= roulette.oddEven[1];
128 |       }
129 |     }
130 | 
131 |     if (roulette.redBlack[0] !== 0) {
132 |       if (data[prizeNumber].style.backgroundColor === "red") {
133 |         win += roulette.redBlack[0] * (1 + (1 + 1 / 9));
134 |       } else {
135 |         win -= roulette.redBlack[0];
136 |       }
137 |     }
138 | 
139 |     if (roulette.redBlack[1] !== 0) {
140 |       if (data[prizeNumber].style.backgroundColor === "black") {
141 |         win += roulette.redBlack[1] * (1 + (1 + 1 / 9));
142 |       } else {
143 |         win -= roulette.redBlack[1];
144 |       }
145 |     }
146 | 
147 |     if (roulette.highLow[0] !== 0) {
148 |       if (
149 |         parseInt(data[prizeNumber].option) > 18 &&
150 |         parseInt(data[prizeNumber].option) < 37
151 |       ) {
152 |         win += roulette.highLow[0] * (1 + (1 + 1 / 9));
153 |       } else {
154 |         win -= roulette.highLow[0];
155 |       }
156 |     }
157 | 
158 |     if (roulette.highLow[1] !== 0) {
159 |       if (
160 |         parseInt(data[prizeNumber].option) > 0 &&
161 |         parseInt(data[prizeNumber].option) < 19
162 |       ) {
163 |         win += roulette.highLow[1] * (1 + (1 + 1 / 9));
164 |       } else {
165 |         win -= roulette.highLow[1];
166 |       }
167 |     }
168 | 
169 |     if (roulette.dozens[0] !== 0) {
170 |       if (
171 |         parseInt(data[prizeNumber].option) > 0 &&
172 |         parseInt(data[prizeNumber].option) < 13
173 |       ) {
174 |         win += roulette.dozens[0] * (1 + (2 + 1 / 6));
175 |       } else {
176 |         win -= roulette.dozens[0];
177 |       }
178 |     }
179 | 
180 |     if (roulette.dozens[1] !== 0) {
181 |       if (
182 |         parseInt(data[prizeNumber].option) > 12 &&
183 |         parseInt(data[prizeNumber].option) < 25
184 |       ) {
185 |         win += roulette.dozens[1] * (1 + (2 + 1 / 6));
186 |       } else {
187 |         win -= roulette.dozens[1];
188 |       }
189 |     }
190 | 
191 |     if (roulette.dozens[2] !== 0) {
192 |       if (
193 |         parseInt(data[prizeNumber].option) > 24 &&
194 |         parseInt(data[prizeNumber].option) < 37
195 |       ) {
196 |         win += roulette.dozens[2] * (1 + (2 + 1 / 6));
197 |       } else {
198 |         win -= roulette.dozens[2];
199 |       }
200 |     }
201 | 
202 |     if (win !== 0) {
203 |       alert(`You've ${win < 0 ? "lost" : "won"} $${Math.abs(win).toFixed(2)}`);
204 |     }
205 |   };
206 | 
207 |   const handleStopSpinning = () => {
208 |     setMustStartSpinning(false);
209 |     setPreviousWins((previousWins) => [
210 |       ...previousWins,
211 |       {
212 |         option: data[prizeNumber].option,
213 |         color: data[prizeNumber].style.backgroundColor,
214 |       },
215 |     ]);
216 | 
217 |     checkWins();
218 |   };
219 | 
220 |   const handleNewBet = (value: number | string) => {
221 |     switch (value) {
222 |       case 0:
223 |         roulette.setZeros((p) => [p[0] + 1, p[1]]);
224 |         break;
225 |       case "00":
226 |         roulette.setZeros((p) => [p[0], p[1] + 1]);
227 |         break;
228 |       case "odds":
229 |         roulette.setOddEven((p) => [p[0] + 1, p[1]]);
230 |         break;
231 |       case "evens":
232 |         roulette.setOddEven((p) => [p[0], p[1] + 1]);
233 |         break;
234 |       case "reds":
235 |         roulette.setRedBlack((p) => [p[0] + 1, p[1]]);
236 |         break;
237 |       case "blacks":
238 |         roulette.setRedBlack((p) => [p[0], p[1] + 1]);
239 |         break;
240 |       case "2nd 18":
241 |         roulette.setHighLow((p) => [p[0] + 1, p[1]]);
242 |         break;
243 |       case "1st 18":
244 |         roulette.setHighLow((p) => [p[0], p[1] + 1]);
245 |         break;
246 |       case "1st 12":
247 |         roulette.setDozens((p) => [p[0] + 1, p[1], p[2]]);
248 |         break;
249 |       case "2nd 12":
250 |         roulette.setDozens((p) => [p[0], p[1] + 1, p[2]]);
251 |         break;
252 |       case "3rd 12":
253 |         roulette.setDozens((p) => [p[0], p[1], p[2] + 1]);
254 |         break;
255 | 
256 |       default:
257 |         roulette.setStraightUps((p) => {
258 |           const straight = [...p];
259 |           straight[(value as number) - 1]++;
260 |           return straight;
261 |         });
262 |         break;
263 |     }
264 |   };
265 | 
266 |   const removeBet = (value: string | number) => {
267 |     switch (value) {
268 |       case 0:
269 |         roulette.setZeros((p) => [0, p[1]]);
270 |         break;
271 |       case "00":
272 |         roulette.setZeros((p) => [p[0], 0]);
273 |         break;
274 |       case "odds":
275 |         roulette.setOddEven((p) => [0, p[1]]);
276 |         break;
277 |       case "evens":
278 |         roulette.setOddEven((p) => [p[0], 0]);
279 |         break;
280 |       case "reds":
281 |         roulette.setRedBlack((p) => [0, p[1]]);
282 |         break;
283 |       case "blacks":
284 |         roulette.setRedBlack((p) => [p[0], 0]);
285 |         break;
286 |       case "2nd 18":
287 |         roulette.setHighLow((p) => [0, p[1]]);
288 |         break;
289 |       case "1st 18":
290 |         roulette.setHighLow((p) => [p[0], 0]);
291 |         break;
292 |       case "1st 12":
293 |         roulette.setDozens((p) => [0, p[1], p[2]]);
294 |         break;
295 |       case "2nd 12":
296 |         roulette.setDozens((p) => [p[0], 0, p[2]]);
297 |         break;
298 |       case "3rd 12":
299 |         roulette.setDozens((p) => [p[0], p[1], 0]);
300 |         break;
301 | 
302 |       default:
303 |         roulette.setStraightUps((p) => {
304 |           const straight = [...p];
305 |           straight[(value as number) - 1] = 0;
306 |           return straight;
307 |         });
308 |         break;
309 |     }
310 |   };
311 | 
312 |   const getBets = () => {
313 |     const straights = roulette.straightUps
314 |       .map((bets, index) => {
315 |         return {
316 |           bets,
317 |           value: index + 1,
318 |         };
319 |       })
320 |       .filter((v) => v.bets !== 0);
321 | 
322 |     const zeros = roulette.zeros[0];
323 |     const doubleZeros = roulette.zeros[1];
324 |     const odds = roulette.oddEven[0];
325 |     const evens = roulette.oddEven[1];
326 |     const reds = roulette.redBlack[0];
327 |     const blacks = roulette.redBlack[1];
328 |     const highs = roulette.highLow[0];
329 |     const lows = roulette.highLow[1];
330 |     const firstDozen = roulette.dozens[0];
331 |     const secondDozen = roulette.dozens[1];
332 |     const thirdDozen = roulette.dozens[2];
333 | 
334 |     return {
335 |       straights,
336 |       zeros,
337 |       doubleZeros,
338 |       odds,
339 |       evens,
340 |       reds,
341 |       blacks,
342 |       highs,
343 |       lows,
344 |       firstDozen,
345 |       secondDozen,
346 |       thirdDozen,
347 |     };
348 |   };
349 | 
350 |   return (
351 |     <div className="mt-2 w-100vw">
352 |       {previousWins.length !== 0 && (
353 |         <>
354 |           <h3 className="text-center">Last 20</h3>
355 |           <div className="d-flex justify-content-between mx-4">
356 |             <h6>recent</h6>
357 |             <h6>older</h6>
358 |           </div>
359 |           <ul className="w-100vw" style={{ overflowX: "auto" }}>
360 |             {[...previousWins].reverse().map((win) => (
361 |               <li
362 |                 className="mr-2 old-result"
363 |                 style={{
364 |                   backgroundColor: win.color,
365 |                 }}
366 |                 key={win.option}
367 |               >
368 |                 {win.option}
369 |               </li>
370 |             ))}
371 |           </ul>
372 |         </>
373 |       )}
374 | 
375 |       <div className="d-flex align-items-center justify-content-between flex-column">
376 |         <div className="w-100">
377 |           <div className="w-100 overflow-auto">
378 |             <ul className="mt-2" style={{ width: "max-content" }}>
379 |               {getBets().zeros !== 0 && (
380 |                 <li className="bet">
381 |                   {getBets().zeros} bet{getBets().zeros !== 1 && "s"} on zero{" "}
382 |                   <button
383 |                     className="btn btn-danger"
384 |                     onClick={() => removeBet(0)}
385 |                   >
386 |                     remove bet
387 |                   </button>
388 |                 </li>
389 |               )}
390 |               {getBets().doubleZeros !== 0 && (
391 |                 <li className="bet">
392 |                   {getBets().doubleZeros} bet
393 |                   {getBets().doubleZeros !== 1 && "s"} on double zero{" "}
394 |                   <button
395 |                     className="btn btn-danger"
396 |                     onClick={() => removeBet("00")}
397 |                   >
398 |                     remove bet
399 |                   </button>
400 |                 </li>
401 |               )}
402 |               {getBets().odds !== 0 && (
403 |                 <li className="bet">
404 |                   {getBets().odds} bet{getBets().odds !== 1 && "s"} on odds{" "}
405 |                   <button
406 |                     className="btn btn-danger"
407 |                     onClick={() => removeBet("odds")}
408 |                   >
409 |                     remove bet
410 |                   </button>
411 |                 </li>
412 |               )}
413 |               {getBets().evens !== 0 && (
414 |                 <li className="bet">
415 |                   {getBets().evens} bet{getBets().evens !== 1 && "s"} on even{" "}
416 |                   <button
417 |                     className="btn btn-danger"
418 |                     onClick={() => removeBet("evens")}
419 |                   >
420 |                     remove bet
421 |                   </button>
422 |                 </li>
423 |               )}
424 |               {getBets().reds !== 0 && (
425 |                 <li className="bet">
426 |                   {getBets().reds} bet{getBets().reds !== 1 && "s"} on red{" "}
427 |                   <button
428 |                     className="btn btn-danger"
429 |                     onClick={() => removeBet("reds")}
430 |                   >
431 |                     remove bet
432 |                   </button>
433 |                 </li>
434 |               )}
435 |               {getBets().blacks !== 0 && (
436 |                 <li className="bet">
437 |                   {getBets().blacks} bet{getBets().blacks !== 1 && "s"} on black{" "}
438 |                   <button
439 |                     className="btn btn-danger"
440 |                     onClick={() => removeBet("blacks")}
441 |                   >
442 |                     remove bet
443 |                   </button>
444 |                 </li>
445 |               )}
446 |               {getBets().lows !== 0 && (
447 |                 <li className="bet">
448 |                   {getBets().lows} bet{getBets().lows !== 1 && "s"} on 1 to 18{" "}
449 |                   <button
450 |                     className="btn btn-danger"
451 |                     onClick={() => removeBet("1st 18")}
452 |                   >
453 |                     remove bet
454 |                   </button>
455 |                 </li>
456 |               )}
457 |               {getBets().highs !== 0 && (
458 |                 <li className="bet">
459 |                   {getBets().highs} bet{getBets().highs !== 1 && "s"} on 19 to
460 |                   36{" "}
461 |                   <button
462 |                     className="btn btn-danger"
463 |                     onClick={() => removeBet("2nd 18")}
464 |                   >
465 |                     remove bet
466 |                   </button>
467 |                 </li>
468 |               )}
469 |               {getBets().firstDozen !== 0 && (
470 |                 <li className="bet">
471 |                   {getBets().firstDozen} bet{getBets().firstDozen !== 1 && "s"}{" "}
472 |                   on 1 to 12{" "}
473 |                   <button
474 |                     className="btn btn-danger"
475 |                     onClick={() => removeBet("1st 12")}
476 |                   >
477 |                     remove bet
478 |                   </button>
479 |                 </li>
480 |               )}
481 |               {getBets().secondDozen !== 0 && (
482 |                 <li className="bet">
483 |                   {getBets().secondDozen} bet
484 |                   {getBets().secondDozen !== 1 && "s"} on 13 to 24{" "}
485 |                   <button
486 |                     className="btn btn-danger"
487 |                     onClick={() => removeBet("2nd 12")}
488 |                   >
489 |                     remove bet
490 |                   </button>
491 |                 </li>
492 |               )}
493 |               {getBets().thirdDozen !== 0 && (
494 |                 <li className="bet">
495 |                   {getBets().thirdDozen} bet{getBets().thirdDozen !== 1 && "s"}{" "}
496 |                   on 25 to 36{" "}
497 |                   <button
498 |                     className="btn btn-danger"
499 |                     onClick={() => removeBet("3rd 12")}
500 |                   >
501 |                     remove bet
502 |                   </button>
503 |                 </li>
504 |               )}
505 |               {getBets().straights.map((s) => (
506 |                 <li className="bet" key={s.value}>
507 |                   {s.bets} bet{s.bets !== 1 && "s"} on {s.value}{" "}
508 |                   <button
509 |                     className="btn btn-danger"
510 |                     onClick={() => removeBet(s.value)}
511 |                   >
512 |                     remove bet
513 |                   </button>
514 |                 </li>
515 |               ))}
516 |             </ul>
517 |           </div>
518 | 
519 |           <div className="d-block mx-auto text-center">
520 |             <div className="d-flex align-items-center justify-content-center">
521 |               <Wheel
522 |                 mustStartSpinning={mustStartSpinning}
523 |                 prizeNumber={prizeNumber}
524 |                 data={data}
525 |                 innerRadius={35}
526 |                 innerBorderWidth={25}
527 |                 radiusLineColor="yellow"
528 |                 radiusLineWidth={1}
529 |                 textDistance={85}
530 |                 outerBorderWidth={20}
531 |                 textColors={["#ffffff"]}
532 |                 spinDuration={0.01}
533 |                 onStopSpinning={handleStopSpinning}
534 |               />
535 |             </div>
536 |             <div className="text-center mt-2">
537 |               <button className="btn btn-success" onClick={handleClick}>
538 |                 spin
539 |               </button>
540 |               <button className="btn btn-danger ms-2" onClick={roulette.clear}>
541 |                 clear bets
542 |               </button>
543 |             </div>
544 |           </div>
545 |         </div>
546 | 
547 |         <div className="mt-4">
548 |           <table className="mx-auto text-center">
549 |             <tbody>
550 |               <tr>
551 |                 <td
552 |                   className="p-2 border border-warning bg-success text-white"
553 |                   onClick={() => handleNewBet(0)}
554 |                 >
555 |                   0
556 |                 </td>
557 |                 <td
558 |                   className="p-2 border border-warning bg-success text-white"
559 |                   onClick={() => handleNewBet("00")}
560 |                 >
561 |                   00
562 |                 </td>
563 |               </tr>
564 |               <tr>
565 |                 <td
566 |                   className="p-2 border border-warning bg-black text-white"
567 |                   onClick={() => handleNewBet("odds")}
568 |                 >
569 |                   odds
570 |                 </td>
571 |                 <td
572 |                   className="p-2 border border-warning bg-danger text-white"
573 |                   onClick={() => handleNewBet("evens")}
574 |                 >
575 |                   evens
576 |                 </td>
577 |               </tr>
578 |               <tr>
579 |                 <td
580 |                   className="p-2 border border-warning bg-danger text-white"
581 |                   onClick={() => handleNewBet("reds")}
582 |                 >
583 |                   reds
584 |                 </td>
585 |                 <td
586 |                   className="p-2 border border-warning bg-black text-white"
587 |                   onClick={() => handleNewBet("blacks")}
588 |                 >
589 |                   blacks
590 |                 </td>
591 |               </tr>
592 |               <tr>
593 |                 <td
594 |                   className="p-2 border border-warning border-bottom-0 bg-black text-white"
595 |                   onClick={() => handleNewBet("1st 18")}
596 |                 >
597 |                   1 to 18
598 |                 </td>
599 |                 <td
600 |                   className="p-2 border border-warning border-bottom-0 bg-danger text-white"
601 |                   onClick={() => handleNewBet("2nd 18")}
602 |                 >
603 |                   19 to 36
604 |                 </td>
605 |               </tr>
606 |             </tbody>
607 |           </table>
608 |           <table className="mx-auto text-center">
609 |             <tbody>
610 |               <tr>
611 |                 <td
612 |                   className="p-2 border border-warning bg-black text-white"
613 |                   onClick={() => handleNewBet("1st 12")}
614 |                 >
615 |                   1st 12
616 |                 </td>
617 |                 <td
618 |                   className="p-2 border border-warning bg-danger text-white"
619 |                   onClick={() => handleNewBet("2nd 12")}
620 |                 >
621 |                   2nd 12
622 |                 </td>
623 |                 <td
624 |                   className="p-2 border border-warning bg-black text-white"
625 |                   onClick={() => handleNewBet("3rd 12")}
626 |                 >
627 |                   3rd 12
628 |                 </td>
629 |               </tr>
630 |               {Array.from({ length: 12 }, (_, i) => i).map((_, i) => (
631 |                 <tr key={_}>
632 |                   <td
633 |                     className={`p-2 border border-warning text-white ${
634 |                       i % 2 === 0 ? "bg-danger" : "bg-black"
635 |                     }`}
636 |                     onClick={() => handleNewBet(i * 3 + 1)}
637 |                   >
638 |                     {i * 3 + 1}
639 |                   </td>
640 |                   <td
641 |                     className={`p-2 border border-warning text-white ${
642 |                       (i + 1) % 2 === 0 ? "bg-danger" : "bg-black"
643 |                     }`}
644 |                     onClick={() => handleNewBet(i * 3 + 2)}
645 |                   >
646 |                     {i * 3 + 2}
647 |                   </td>
648 |                   <td
649 |                     className={`p-2 border border-warning text-white ${
650 |                       (i + 2) % 2 === 0 ? "bg-danger" : "bg-black"
651 |                     }`}
652 |                     onClick={() => handleNewBet(i * 3 + 3)}
653 |                   >
654 |                     {i * 3 + 3}
655 |                   </td>
656 |                 </tr>
657 |               ))}
658 |             </tbody>
659 |           </table>
660 |         </div>
661 |       </div>
662 |     </div>
663 |   );
664 | };
665 | 
666 | export default RoulettePage;
667 | 


--------------------------------------------------------------------------------
/contracts/Blackjack.sol:
--------------------------------------------------------------------------------
  1 | // SPDX-License-Identifier: GPL v3.0
  2 | pragma solidity ^0.8.4;
  3 | 
  4 | import "@openzeppelin/contracts/access/Ownable.sol";
  5 | import "./CasinoGame.sol";
  6 | 
  7 | struct BlackjackHand {
  8 |     bool isBust;
  9 |     bool isBlackjack;
 10 |     bool isDoubledDown;
 11 |     bool fromSplit; // If fromSplit is true, don't allow fur further splitting if double Aces
 12 |     uint256 bet;
 13 |     string[] cVals;
 14 |     string[] cSuits;
 15 | }
 16 | 
 17 | struct BlackjackPlayer {
 18 |     mapping (uint => BlackjackHand) hands;
 19 |     uint numHands;
 20 | }
 21 | 
 22 | struct BlackjackGame {
 23 |     BlackjackPlayer player;
 24 |     BlackjackPlayer dealer;
 25 | }
 26 | 
 27 | /* The Blackjack contract defines specific state variables
 28 | *  and functions for a user to play Blackjack at the Casino.
 29 | */
 30 | contract Blackjack is Ownable, CasinoGame {
 31 | 
 32 |     // State variables
 33 |     mapping (address => BlackjackGame) private bjGames;
 34 |     string[13] private cardValues = ["2", "3", "4", "5", "6", "7", "8", "9", "10", "J", "Q", "K", "A"];
 35 |     string[4] private cardSuits = ["Diamonds", "Clubs", "Hearts", "Spades"];
 36 |     uint8 private numDecks;
 37 |     uint256 private nonce = 0;
 38 | 
 39 |     // Events (to be emitted)
 40 |     event NewRound(address player, uint256 initialBet);
 41 |     event PlayerCardsUpdated(address player, BlackjackHand hand1, BlackjackHand hand2, BlackjackHand hand3, BlackjackHand hand4, uint numHands);
 42 |     event DealerCardsUpdated(address player, BlackjackHand hand);
 43 |     event PlayerBetUpdated(address player, uint256 newBet);
 44 |     event PlayerTurnEnd(address player);
 45 |     event PlayerBlackjack(address player);
 46 |     event DealerBlackjack(address player);
 47 |     event RoundResult(address player, uint256 payout);
 48 | 
 49 |     // Constructor for initial state values, including calling parent constructor
 50 |     constructor(uint256 _minBet, uint256 _maxBet, uint8 _numDecks) CasinoGame(_minBet, _maxBet) {
 51 |         numDecks = _numDecks;
 52 |     }
 53 | 
 54 |     // Updates the value of numDecks, the number of decks to play with
 55 |     function setNumDecks(uint8 _decks) public onlyOwner {
 56 |         require(_decks > 0, "At least one deck required.");
 57 |         numDecks = _decks;
 58 |     }
 59 | 
 60 |     // Getters
 61 |     function getNumDecks() public view returns (uint8) {return numDecks;}
 62 | 
 63 |     // Handles the initial start of a blackjack round. First pays the initial bet
 64 |     // to the contract, then sets the state of the round in progress to true.
 65 |     // Finishes by calling the deal() function to begin the game.
 66 |     function playRound(uint256 _betAmount) external {
 67 |         // Only start the round if player is not in the middle of a game or an existing round.
 68 |         // Check that the paid bet is large enough.
 69 |         require(roundInProgress[msg.sender] == false, "Already playing game.");
 70 |         require(_betAmount >= minimumBet, "Bet is too small.");
 71 |         require(_betAmount <= maximumBet, "Bet is too large.");
 72 | 
 73 |         // Place the user's initial bet using a CasinoGame parent function
 74 |         payContract(msg.sender, _betAmount);
 75 | 
 76 |         //  Initialize new game round
 77 |         setRoundInProgress(msg.sender, true);
 78 | 
 79 |         // Let front end know a new round has begun
 80 |         emit NewRound(msg.sender, _betAmount);
 81 | 
 82 |         // Handle initial dealing of cards
 83 |         deal(msg.sender, _betAmount);
 84 |     }
 85 | 
 86 |     // ******* FOR TESTING PURPOSES *****
 87 |     function getHand(address _player) public view returns (string[] memory, string[] memory) {
 88 |         return (bjGames[_player].player.hands[0].cVals, bjGames[_player].player.hands[0].cSuits);
 89 |     }
 90 |     function getDealerHand(address _player) public view returns (string[] memory, string[] memory) {
 91 |         return (bjGames[_player].dealer.hands[0].cVals, bjGames[_player].dealer.hands[0].cSuits);
 92 |     }
 93 |     function getHighestHandVal(address _player) public view returns (uint16) {
 94 |         return getHighestHandValue(bjGames[_player].player.hands[0]);
 95 |     }
 96 | 
 97 |     // Emits the current hands for the round
 98 |     function emitRoundHands(address _player) external {
 99 |         emit PlayerCardsUpdated(_player, bjGames[_player].player.hands[0], bjGames[_player].player.hands[1],
100 |             bjGames[_player].player.hands[2], bjGames[_player].player.hands[3], bjGames[_player].player.numHands);
101 |         emit DealerCardsUpdated(_player, bjGames[_player].dealer.hands[0]);
102 |     }
103 | 
104 |     // Handles the end of a blackjack round. It sets the roundInProgress
105 |     // attributes to false. Then, it resets the BlackjackGame attributes.
106 |     function endRound(address _playerAddress) public {
107 |         require(roundInProgress[_playerAddress] == true, "Not playing round.");
108 | 
109 |         // Handle any payouts from the round based on player.totalbet
110 |         BlackjackGame storage game = bjGames[_playerAddress];
111 |         uint256 totalPayout = 0;
112 | 
113 |         /* Non-split win rules:
114 |             - if player has natural blackjack, they win an amount equivalent to 1.5*initial bet + initial bet back
115 |             - if player has blackjack or higher hand without busting, they win an amount equivalent to initial bet + initial bet back
116 |             - if player has same hand as dealer, they win their initial bet back (push)
117 |             - if player doubled down and wins, they win an amount equivalent to double their doubled bet + doubled bet back
118 |         */
119 |         /* Split win rules:
120 |             - if player wins (blackjack or higher hand without busting) both hands, they win an amount equivalent to their doubled bet + doubled bet back (1:1 payout)
121 |             - if player wins only one hand, they win an amount equivalent to half their doubled bet + half their doubled bet back (1:1 payout)
122 |             - natural blackjacks only pay out 1:1 instead of 3:2
123 |             - doubling down is still allowed on each separate hand
124 |         */
125 | 
126 |         for(uint i = 0; i < game.player.numHands; i++) {
127 |             BlackjackHand memory hand = game.player.hands[i];
128 | 
129 |             if(!hand.isBust) {
130 |                 uint16 playerHandVal = getHighestHandValue(hand);
131 |                 if(hand.isBlackjack) {
132 |                     if(game.dealer.hands[0].isBlackjack) {
133 |                         // If both player and dealer have blackjack, then push
134 |                         totalPayout += hand.bet;
135 |                     } else {
136 |                         // If hand is not from a split, natural blackjack pays 3:2, otherwise pays 1:1
137 |                         if(!hand.fromSplit) {
138 |                             totalPayout += (hand.bet * 3) / 2;
139 |                         } else {
140 |                             totalPayout += hand.bet * 2;
141 |                         }
142 |                     }
143 |                 } else if(!game.dealer.hands[0].isBust) {
144 |                     uint16 dealerHandVal = getHighestHandValue(game.dealer.hands[0]);
145 |                     if(playerHandVal > dealerHandVal) {
146 |                         // If the player has a higher hand, payout is 1:1
147 |                         totalPayout += hand.bet * 2;
148 |                     } else if (playerHandVal == dealerHandVal) {
149 |                         // Push pays back original bet
150 |                         totalPayout += hand.bet;
151 |                     }
152 |                 } else {
153 |                     // Hand still in when dealer busts pays 1:1
154 |                     totalPayout += hand.bet * 2;
155 |                 }
156 |             }
157 |         }
158 | 
159 |         rewardUser(_playerAddress, totalPayout);
160 |         emit RoundResult(_playerAddress, totalPayout);
161 | 
162 |         setRoundInProgress(_playerAddress, false);
163 |         resetBJGame(_playerAddress);
164 |     }
165 | 
166 |     // Handles the first deal of cards to player and dealer.
167 |     function deal(address _playerAddress, uint256 _bet) private {
168 |         require(roundInProgress[_playerAddress] == true, "Not playing round.");
169 |         BlackjackGame storage game = bjGames[_playerAddress];
170 | 
171 |         // Initialize starting hand and deal first set of cards.
172 |         string[] memory pVals;
173 |         string[] memory pSuits; 
174 |         string[] memory dVals; 
175 |         string[] memory dSuits;
176 |         BlackjackHand memory playerHand = BlackjackHand(false, false, false, false, _bet, pVals, pSuits);
177 |         BlackjackHand memory dealerHand = BlackjackHand(false, false, false, false, 0, dVals, dSuits);
178 |         game.player.hands[game.player.numHands++] = playerHand;
179 |         game.dealer.hands[game.dealer.numHands++] = dealerHand;
180 |         dealSingleCard(game, game.player.hands[0]);
181 |         dealSingleCard(game, game.dealer.hands[0]);
182 |         dealSingleCard(game, game.player.hands[0]);
183 |         dealSingleCard(game, game.dealer.hands[0]);
184 | 
185 |         // Let front end know the player and dealer hands
186 |         emit PlayerCardsUpdated(_playerAddress, game.player.hands[0], game.player.hands[1], game.player.hands[2], game.player.hands[3], game.player.numHands);
187 |         emit DealerCardsUpdated(_playerAddress, game.dealer.hands[0]);
188 | 
189 |         // Check if player has natural blackjack
190 |         if(hasBlackjack(game.player.hands[0])) {
191 |             game.player.hands[0].isBlackjack = true;
192 |             emit PlayerBlackjack(_playerAddress);
193 |         } else if (hasBlackjack(game.dealer.hands[0])) {
194 |             game.dealer.hands[0].isBlackjack = true; // Only a single player, so no need for dealer to continue playing after this
195 |             emit DealerBlackjack(_playerAddress);
196 |         }
197 |     }
198 | 
199 |     function doublePlayerBet(address _address, BlackjackGame storage _game, uint8 _handInd) private {
200 |         // Double the user's bet using a CasinoGame parent function
201 |         payContract(_address, _game.player.hands[_handInd].bet);
202 |         _game.player.hands[_handInd].bet = _game.player.hands[_handInd].bet * 2;
203 | 
204 |         emit PlayerBetUpdated(_address, getTotalBet(_game.player));
205 |     }
206 | 
207 |     // Handles splitting cards from a player's hand.
208 |     function splitPlayerHand(uint8 _handInd) public {
209 |         require(roundInProgress[msg.sender] == true, "Not playing round.");
210 | 
211 |         BlackjackGame storage game = bjGames[msg.sender];
212 |         require(game.player.hands[_handInd].cVals.length == 2, "Invalid number of cards.");
213 |         require(!game.player.hands[_handInd].isBust, "Already lost round.");
214 |         require(!game.player.hands[_handInd].isBlackjack, "Already won round.");
215 |         require(!game.player.hands[_handInd].isDoubledDown, "Already doubled down.");
216 |         require(game.player.numHands < 4, "Max number of splits reached.");
217 | 
218 |         // Have player pay double the current hand's bet
219 |         doublePlayerBet(msg.sender, game, _handInd);
220 | 
221 |         // Handle splitting logic
222 |         // Create new BlackjackHand to store second value
223 |         string[] memory pVals2;
224 |         string[] memory pSuits2; 
225 | 
226 |         // Add new values and hand to hands array
227 |         BlackjackHand storage newHand2 = game.player.hands[game.player.numHands++];
228 |         newHand2.fromSplit = true;
229 |         newHand2.bet = game.player.hands[_handInd].bet/2;
230 |         newHand2.cVals = pVals2;
231 |         newHand2.cSuits = pSuits2;
232 | 
233 |         // game.player.hands.push(newHand2);
234 |         game.player.hands[_handInd+1].cVals.push(game.player.hands[_handInd].cVals[1]);
235 |         game.player.hands[_handInd+1].cSuits.push(game.player.hands[_handInd].cSuits[1]);
236 | 
237 |         // Adjust existing array to act as first split hand
238 |         delete game.player.hands[_handInd].cVals[1];
239 |         delete game.player.hands[_handInd].cSuits[1];
240 |         game.player.hands[_handInd].fromSplit = true;
241 |         game.player.hands[_handInd].bet = game.player.hands[_handInd].bet/2;
242 | 
243 |         // Finally, deal cards to these new hands
244 |         dealSingleCard(game, game.player.hands[_handInd]);
245 |         dealSingleCard(game, game.player.hands[_handInd+1]);
246 | 
247 |         emit PlayerCardsUpdated(msg.sender, bjGames[msg.sender].player.hands[0], bjGames[msg.sender].player.hands[1],
248 |             bjGames[msg.sender].player.hands[2], bjGames[msg.sender].player.hands[3], bjGames[msg.sender].player.numHands);
249 |     }
250 | 
251 |     // Handles doubling down on a player's hand.
252 |     // function doubleDown(BlackjackHand memory _hand, uint8 handInd) public {
253 |     function doubleDown(uint8 handInd) public {
254 |         require(roundInProgress[msg.sender] == true, "Not playing round.");
255 | 
256 |         BlackjackGame storage game = bjGames[msg.sender];
257 |         BlackjackHand memory hand = game.player.hands[handInd];
258 |         require(hand.cVals.length == 2, "Invalid number of cards.");
259 |         require(getLowestHandValue(hand) <= 11, "Hand is too high.");
260 |         require(!hand.isBust, "Already lost round.");
261 |         require(!hand.isBlackjack, "Already won round.");
262 |         require(!hand.isDoubledDown, "Already doubled down.");
263 | 
264 |         // Double the user's bet using a CasinoGame parent function
265 |         doublePlayerBet(msg.sender, game, handInd);
266 | 
267 |         // Hit a single time, then end the player's turn
268 |         hitPlayerAuto(msg.sender, handInd);
269 |         emit PlayerCardsUpdated(msg.sender, bjGames[msg.sender].player.hands[0], bjGames[msg.sender].player.hands[1],
270 |             bjGames[msg.sender].player.hands[2], bjGames[msg.sender].player.hands[3], bjGames[msg.sender].player.numHands);
271 |         endPlayerTurn(msg.sender);
272 |     }
273 | 
274 |     function hitPlayerAuto(address _playerAddress, uint8 handInd) private {
275 |         require(roundInProgress[_playerAddress] == true, "Not playing round.");
276 |         
277 |         BlackjackGame storage game = bjGames[_playerAddress];
278 |         require(game.player.hands[handInd].cVals.length >= 2, "Not yet dealt cards.");
279 |         require(!game.player.hands[handInd].isBust, "Already lost round.");
280 |         require(!game.player.hands[handInd].isBlackjack, "Already won round.");
281 |         require(!game.player.hands[handInd].isDoubledDown, "Already doubled down.");
282 | 
283 |         dealSingleCard(game, game.player.hands[handInd]);
284 |         emit PlayerCardsUpdated(_playerAddress, bjGames[_playerAddress].player.hands[0], bjGames[_playerAddress].player.hands[1],
285 |             bjGames[_playerAddress].player.hands[2], bjGames[_playerAddress].player.hands[3], bjGames[_playerAddress].player.numHands);
286 | 
287 |         // Check if player has gone over 21
288 |         uint32 handVal = getLowestHandValue(game.player.hands[handInd]);
289 |         if(handVal  > 21)
290 |            game.player.hands[handInd].isBust = true;
291 |         endPlayerTurn(msg.sender);
292 |     }
293 | 
294 |     // Handles dealing another card to the player.
295 |     function hitPlayer(uint8 handInd) public {
296 |         require(roundInProgress[msg.sender] == true, "Not playing round.");
297 |         
298 |         BlackjackGame storage game = bjGames[msg.sender];
299 |         require(game.player.hands[handInd].cVals.length >= 2, "Not yet dealt cards.");
300 |         require(!game.player.hands[handInd].isBust, "Already lost round.");
301 |         require(!game.player.hands[handInd].isBlackjack, "Already won round.");
302 |         require(!game.player.hands[handInd].isDoubledDown, "Already doubled down.");
303 | 
304 |         dealSingleCard(game, game.player.hands[handInd]);
305 |         emit PlayerCardsUpdated(msg.sender, bjGames[msg.sender].player.hands[0], bjGames[msg.sender].player.hands[1],
306 |             bjGames[msg.sender].player.hands[2], bjGames[msg.sender].player.hands[3],  bjGames[msg.sender].player.numHands);
307 | 
308 |         // Check if player has gone over 21
309 |         uint32 handVal = getLowestHandValue(game.player.hands[handInd]);
310 |         if(handVal  > 21) {
311 |             game.player.hands[handInd].isBust = true;
312 |             endPlayerTurn(msg.sender);
313 |         }
314 |     }
315 | 
316 |     function standPlayer() public {
317 |         require(roundInProgress[msg.sender] == true, "Not playing round.");
318 |         endPlayerTurn(msg.sender);
319 |     }
320 | 
321 |     // Handles finishing a player's turn.
322 |     function endPlayerTurn(address _playerAddress) public {
323 |         require(roundInProgress[_playerAddress] == true, "Not playing round.");
324 | 
325 |         BlackjackGame storage game = bjGames[_playerAddress];
326 |         require(game.player.numHands > 0 && game.player.hands[0].cVals.length >= 2, "Not yet dealt cards.");
327 | 
328 |         emit PlayerTurnEnd(_playerAddress);
329 |         
330 |         // Begin dealer's turn
331 |         dealerPlay(_playerAddress);
332 |     }
333 | 
334 |     // Handles logic for the dealer's turn
335 |     function dealerPlay(address _playerAddress) private {
336 |         require(roundInProgress[_playerAddress] == true, "Not playing round.");
337 |         BlackjackGame storage game = bjGames[_playerAddress];
338 | 
339 |         // Dealer hits on soft 17
340 |         // Dealer stands on 17 or above
341 |         while(!game.dealer.hands[0].isBust && !game.dealer.hands[0].isBlackjack && getLowestHandValue(game.dealer.hands[0]) < 17) {
342 |             hitDealer(_playerAddress, game);
343 |             // Check if dealer has gone over 21 or has hit 21
344 |             uint32 handVal = getLowestHandValue(game.dealer.hands[0]);
345 |             if(handVal  > 21) {
346 |                 game.dealer.hands[0].isBust = true;
347 |             } else if(handVal >= 17) {
348 |                 break;
349 |             }
350 |         }
351 | 
352 |         // Dealer's turn is complete, and so is the game
353 |         endRound(_playerAddress);
354 |     }
355 | 
356 |     // Handles dealing another card to the dealer.
357 |     function hitDealer(address _playerAddress, BlackjackGame storage game) private {
358 |         dealSingleCard(game, game.dealer.hands[0]);
359 |         emit DealerCardsUpdated(_playerAddress, bjGames[_playerAddress].dealer.hands[0]);
360 |     }
361 | 
362 |     // Handles selecting and dealing a single card to the specified player.
363 |     function dealSingleCard(BlackjackGame storage _game, BlackjackHand storage _hand) private {
364 |         require(roundInProgress[msg.sender] == true, "Not playing round.");
365 | 
366 |         bool validCard = false;
367 |         uint tries = 0;
368 |         string memory cv;
369 |         string memory cs;
370 | 
371 |         while(!validCard) {
372 |             // Select random card value from deck
373 |             cv = cardValues[rand(cardValues.length)];
374 |             // Select random suit from deck
375 |             cs = cardSuits[rand(cardSuits.length)];
376 |             // Verify card selection is valid
377 |             validCard = cardLeftInDeck(_game, cv, cs);
378 | 
379 |             // With a single player, all cards in the deck should never be dealt.
380 |             // However, just in case, break out of the loop if all cards have been dealt.
381 |             tries++;
382 |             require(tries <= numDecks*52, "No cards left to deal.");
383 |         }
384 | 
385 |         // Update value and suit, then add to specified hand
386 |         _hand.cVals.push(cv);
387 |         _hand.cSuits.push(cs);
388 | 
389 |         require(_hand.cVals.length == _hand.cSuits.length, "Error dealing card.");
390 |     }
391 | 
392 |     // Resets a BlackjackGame and all the internal attributes.
393 |     // Currently not sure if we need to delete the arrays in the structs, and/or the hands array
394 |     //  before deleting bjGames[_playerAddress] to avoid memory leaks?
395 |     function resetBJGame(address _playerAddress) private {
396 |         BlackjackGame storage game = bjGames[_playerAddress];
397 |         // Reset player attributes
398 |         for(uint i = 0; i < game.player.numHands; i++) {
399 |             delete game.player.hands[i].cVals;
400 |             delete game.player.hands[i].cSuits;
401 |             delete game.player.hands[i];
402 |         }
403 | 
404 |         // Reset dealer attributes
405 |         for(uint i = 0; i < game.dealer.numHands; i++) {
406 |             delete game.dealer.hands[i].cVals;
407 |             delete game.dealer.hands[i].cSuits;
408 |             delete game.dealer.hands[i];
409 |         }
410 | 
411 |         // Delete game entry in mapping
412 |         delete bjGames[_playerAddress];
413 |     }
414 | 
415 |     // Returns true if the hand has a natural blackjack, otherwise false.
416 |     function hasBlackjack(BlackjackHand memory _hand) private pure returns (bool) {
417 |         require(_hand.cVals.length == 2, "Incorrect amount of cards.");
418 |         bool hasAce = false;
419 |         bool hasFace = false;
420 |         for (uint i = 0; i < _hand.cVals.length; i++) {
421 |             uint16 cardVal = getCardValue(_hand.cVals[i]);
422 |             if(cardVal == 10)
423 |                 hasFace = true;
424 |             else if(cardVal == 0)
425 |                 hasAce = true;
426 |         }
427 | 
428 |         return hasAce && hasFace;
429 |     }
430 | 
431 |     // Returns the total sum of a player's bets.
432 |     function getTotalBet(BlackjackPlayer storage _player) private view returns (uint256) {
433 |         uint256 total = 0;
434 |         for(uint i = 0; i < _player.numHands; i++) {
435 |             total += _player.hands[i].bet;
436 |         }
437 |         return total;
438 |     }
439 | 
440 |     // Returns the lowest numerical value of a player's hand. Always assumes Ace is 1.
441 |     function getLowestHandValue(BlackjackHand memory _hand) private pure returns (uint32) {
442 |         uint32 totalVal = 0;
443 |         for (uint i = 0; i < _hand.cVals.length; i++) {
444 |             uint16 cardVal = getCardValue(_hand.cVals[i]);
445 |             if(cardVal == 0)
446 |                 totalVal += 1;
447 |             else
448 |                 totalVal += cardVal;
449 |         }
450 | 
451 |         return totalVal;
452 |     }
453 |     
454 |     // Returns the highest numerical value of a hand, trying to avoid going over 21.
455 |     function getHighestHandValue(BlackjackHand memory _hand) private pure returns (uint16) {
456 |         uint16 totalVal = 0;
457 |         uint8 numAces = 0;
458 |         // First count non-Aces, keeping track of number of aces.
459 |         for(uint i = 0; i < _hand.cVals.length; i++) {
460 |             uint16 cardVal = getCardValue(_hand.cVals[i]);
461 |             if(cardVal == 0) {
462 |                 numAces++;
463 |             } else
464 |                 totalVal += cardVal;
465 |         }
466 |         // For Aces, first assume each Ace is 1.
467 |         totalVal += (1 * numAces);
468 |         // Attempt to add another 10 for each Ace, to give each a total of 11 for each, without going over 21.
469 |         for(uint i = 0; i < numAces; i++) {
470 |             if(totalVal + 10 <= 21)
471 |                 totalVal += 10;
472 |             else
473 |                 break;
474 |         }
475 |         return totalVal;
476 |     }
477 | 
478 |     // Returns the integer value of a card. Returns 0 for Ace. Returns type(uint16).max if 
479 |     // _card is uninitialized.
480 |     function getCardValue(string memory _value) public pure returns (uint16) {
481 |         if(bytes(_value).length > 0) {
482 |             if(isAlphaUpper(_value)) {
483 |                 if(keccak256(abi.encodePacked((_value))) == keccak256(abi.encodePacked(("A"))))
484 |                     return 0;
485 |                 else
486 |                     return 10;
487 |             } else
488 |                 return uint16(safeParseInt(_value));
489 |         }
490 |         return type(uint16).max;
491 |     }
492 | 
493 |     // Checks if a card has not yet been dealt in the provided game. Returns true if it has
494 |     // not yet been dealt, otherwise false.
495 |     function cardLeftInDeck(BlackjackGame storage _game, string memory _cardVal, string memory _cardSuit) private view returns (bool) {
496 |         uint8 occurrences = 0;
497 |         // Check player cards
498 |         for (uint i = 0; i < _game.player.numHands; i++) {
499 |             for (uint j = 0; j < _game.player.hands[i].cVals.length; j++) {
500 |                 if(keccak256(abi.encodePacked((_game.player.hands[i].cVals[j]))) == keccak256(abi.encodePacked((_cardVal))) && 
501 |                     keccak256(abi.encodePacked((_game.player.hands[i].cSuits[j]))) == keccak256(abi.encodePacked((_cardSuit))))
502 |                     occurrences++;  
503 |             }
504 |         }
505 |         // Check dealer cards
506 |         for (uint i = 0; i < _game.dealer.numHands; i++) {
507 |             for (uint j = 0; j < _game.dealer.hands[i].cVals.length; j++) {
508 |                 if(keccak256(abi.encodePacked((_game.dealer.hands[i].cVals[j]))) == keccak256(abi.encodePacked((_cardVal))) && 
509 |                     keccak256(abi.encodePacked((_game.dealer.hands[i].cSuits[j]))) == keccak256(abi.encodePacked((_cardSuit))))
510 |                     occurrences++;  
511 |             }
512 |         }
513 | 
514 |         return occurrences < numDecks;
515 |     }
516 | 
517 |     // Returns true if a string contains only uppercase alphabetic characters
518 |     function isAlphaUpper(string memory _str) public pure returns (bool) {
519 |         bytes memory b = bytes(_str);
520 | 
521 |         for(uint i; i< b .length; i++){
522 |             bytes1 char = b[i];
523 | 
524 |             if(!(char >= 0x41 && char <= 0x5A))
525 |                 return false;
526 |         }
527 |         return true;
528 |     }
529 | 
530 |     // Generates a random number, 0 to _upper (non-inclusive), to be used for card selection.
531 |     // Not truly random, but good enough for the needs of this project.
532 |     // A mainnet application should use something like Chainlink VRF for this task instead.
533 |     function rand(uint256 _upper) public returns(uint256) {
534 |     uint256 seed = uint256(keccak256(abi.encodePacked(
535 |         block.timestamp + block.difficulty +
536 |         ((uint256(keccak256(abi.encodePacked(block.coinbase)))) / (block.timestamp)) +
537 |         block.gaslimit + 
538 |         ((uint256(keccak256(abi.encodePacked(msg.sender)))) / (block.timestamp)) +
539 |         block.number + nonce
540 |     )));
541 | 
542 |     nonce++;
543 | 
544 |     return (seed - ((seed / _upper) * _upper));
545 | }
546 | 
547 |     /*
548 |     Copyright (c) 2015-2016 Oraclize SRL
549 |     Copyright (c) 2016-2019 Oraclize LTD
550 |     Copyright (c) 2019-2020 Provable Things Limited
551 |     Permission is hereby granted, free of charge, to any person obtaining a copy
552 |     of this software and associated documentation files (the "Software"), to deal
553 |     in the Software without restriction, including without limitation the rights
554 |     to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
555 |     copies of the Software, and to permit persons to whom the Software is
556 |     furnished to do so, subject to the following conditions:
557 |     The above copyright notice and this permission notice shall be included in
558 |     all copies or substantial portions of the Software.
559 |     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
560 |     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
561 |     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
562 |     AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
563 |     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
564 |     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
565 |     THE SOFTWARE.
566 |     */
567 |     function safeParseInt(string memory _a) internal pure returns (uint _parsedInt) {
568 |         return safeParseInt(_a, 0);
569 |     }
570 | 
571 |     function safeParseInt(string memory _a, uint _b) internal pure returns (uint _parsedInt) {
572 |         bytes memory bresult = bytes(_a);
573 |         uint mint = 0;
574 |         bool decimals = false;
575 |         for (uint i = 0; i < bresult.length; i++) {
576 |             if ((uint(uint8(bresult[i])) >= 48) && (uint(uint8(bresult[i])) <= 57)) {
577 |                 if (decimals) {
578 |                    if (_b == 0) break;
579 |                     else _b--;
580 |                 }
581 |                 mint *= 10;
582 |                 mint += uint(uint8(bresult[i])) - 48;
583 |             } else if (uint(uint8(bresult[i])) == 46) {
584 |                 require(!decimals, "More than one decimal found!");
585 |                 decimals = true;
586 |             } else {
587 |                 revert("Non-numeral character found!");
588 |             }
589 |         }
590 |         if (_b > 0) {
591 |             mint *= 10 ** _b;
592 |         }
593 |         return mint;
594 |     }
595 | }


--------------------------------------------------------------------------------
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  2 |                        Version 3, 29 June 2007
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262 |     copy of the Corresponding Source for all the software in the
263 |     product that is covered by this License, on a durable physical
264 |     medium customarily used for software interchange, for a price no
265 |     more than your reasonable cost of physically performing this
266 |     conveying of source, or (2) access to copy the
267 |     Corresponding Source from a network server at no charge.
268 | 
269 |     c) Convey individual copies of the object code with a copy of the
270 |     written offer to provide the Corresponding Source.  This
271 |     alternative is allowed only occasionally and noncommercially, and
272 |     only if you received the object code with such an offer, in accord
273 |     with subsection 6b.
274 | 
275 |     d) Convey the object code by offering access from a designated
276 |     place (gratis or for a charge), and offer equivalent access to the
277 |     Corresponding Source in the same way through the same place at no
278 |     further charge.  You need not require recipients to copy the
279 |     Corresponding Source along with the object code.  If the place to
280 |     copy the object code is a network server, the Corresponding Source
281 |     may be on a different server (operated by you or a third party)
282 |     that supports equivalent copying facilities, provided you maintain
283 |     clear directions next to the object code saying where to find the
284 |     Corresponding Source.  Regardless of what server hosts the
285 |     Corresponding Source, you remain obligated to ensure that it is
286 |     available for as long as needed to satisfy these requirements.
287 | 
288 |     e) Convey the object code using peer-to-peer transmission, provided
289 |     you inform other peers where the object code and Corresponding
290 |     Source of the work are being offered to the general public at no
291 |     charge under subsection 6d.
292 | 
293 |   A separable portion of the object code, whose source code is excluded
294 | from the Corresponding Source as a System Library, need not be
295 | included in conveying the object code work.
296 | 
297 |   A "User Product" is either (1) a "consumer product", which means any
298 | tangible personal property which is normally used for personal, family,
299 | or household purposes, or (2) anything designed or sold for incorporation
300 | into a dwelling.  In determining whether a product is a consumer product,
301 | doubtful cases shall be resolved in favor of coverage.  For a particular
302 | product received by a particular user, "normally used" refers to a
303 | typical or common use of that class of product, regardless of the status
304 | of the particular user or of the way in which the particular user
305 | actually uses, or expects or is expected to use, the product.  A product
306 | is a consumer product regardless of whether the product has substantial
307 | commercial, industrial or non-consumer uses, unless such uses represent
308 | the only significant mode of use of the product.
309 | 
310 |   "Installation Information" for a User Product means any methods,
311 | procedures, authorization keys, or other information required to install
312 | and execute modified versions of a covered work in that User Product from
313 | a modified version of its Corresponding Source.  The information must
314 | suffice to ensure that the continued functioning of the modified object
315 | code is in no case prevented or interfered with solely because
316 | modification has been made.
317 | 
318 |   If you convey an object code work under this section in, or with, or
319 | specifically for use in, a User Product, and the conveying occurs as
320 | part of a transaction in which the right of possession and use of the
321 | User Product is transferred to the recipient in perpetuity or for a
322 | fixed term (regardless of how the transaction is characterized), the
323 | Corresponding Source conveyed under this section must be accompanied
324 | by the Installation Information.  But this requirement does not apply
325 | if neither you nor any third party retains the ability to install
326 | modified object code on the User Product (for example, the work has
327 | been installed in ROM).
328 | 
329 |   The requirement to provide Installation Information does not include a
330 | requirement to continue to provide support service, warranty, or updates
331 | for a work that has been modified or installed by the recipient, or for
332 | the User Product in which it has been modified or installed.  Access to a
333 | network may be denied when the modification itself materially and
334 | adversely affects the operation of the network or violates the rules and
335 | protocols for communication across the network.
336 | 
337 |   Corresponding Source conveyed, and Installation Information provided,
338 | in accord with this section must be in a format that is publicly
339 | documented (and with an implementation available to the public in
340 | source code form), and must require no special password or key for
341 | unpacking, reading or copying.
342 | 
343 |   7. Additional Terms.
344 | 
345 |   "Additional permissions" are terms that supplement the terms of this
346 | License by making exceptions from one or more of its conditions.
347 | Additional permissions that are applicable to the entire Program shall
348 | be treated as though they were included in this License, to the extent
349 | that they are valid under applicable law.  If additional permissions
350 | apply only to part of the Program, that part may be used separately
351 | under those permissions, but the entire Program remains governed by
352 | this License without regard to the additional permissions.
353 | 
354 |   When you convey a copy of a covered work, you may at your option
355 | remove any additional permissions from that copy, or from any part of
356 | it.  (Additional permissions may be written to require their own
357 | removal in certain cases when you modify the work.)  You may place
358 | additional permissions on material, added by you to a covered work,
359 | for which you have or can give appropriate copyright permission.
360 | 
361 |   Notwithstanding any other provision of this License, for material you
362 | add to a covered work, you may (if authorized by the copyright holders of
363 | that material) supplement the terms of this License with terms:
364 | 
365 |     a) Disclaiming warranty or limiting liability differently from the
366 |     terms of sections 15 and 16 of this License; or
367 | 
368 |     b) Requiring preservation of specified reasonable legal notices or
369 |     author attributions in that material or in the Appropriate Legal
370 |     Notices displayed by works containing it; or
371 | 
372 |     c) Prohibiting misrepresentation of the origin of that material, or
373 |     requiring that modified versions of such material be marked in
374 |     reasonable ways as different from the original version; or
375 | 
376 |     d) Limiting the use for publicity purposes of names of licensors or
377 |     authors of the material; or
378 | 
379 |     e) Declining to grant rights under trademark law for use of some
380 |     trade names, trademarks, or service marks; or
381 | 
382 |     f) Requiring indemnification of licensors and authors of that
383 |     material by anyone who conveys the material (or modified versions of
384 |     it) with contractual assumptions of liability to the recipient, for
385 |     any liability that these contractual assumptions directly impose on
386 |     those licensors and authors.
387 | 
388 |   All other non-permissive additional terms are considered "further
389 | restrictions" within the meaning of section 10.  If the Program as you
390 | received it, or any part of it, contains a notice stating that it is
391 | governed by this License along with a term that is a further
392 | restriction, you may remove that term.  If a license document contains
393 | a further restriction but permits relicensing or conveying under this
394 | License, you may add to a covered work material governed by the terms
395 | of that license document, provided that the further restriction does
396 | not survive such relicensing or conveying.
397 | 
398 |   If you add terms to a covered work in accord with this section, you
399 | must place, in the relevant source files, a statement of the
400 | additional terms that apply to those files, or a notice indicating
401 | where to find the applicable terms.
402 | 
403 |   Additional terms, permissive or non-permissive, may be stated in the
404 | form of a separately written license, or stated as exceptions;
405 | the above requirements apply either way.
406 | 
407 |   8. Termination.
408 | 
409 |   You may not propagate or modify a covered work except as expressly
410 | provided under this License.  Any attempt otherwise to propagate or
411 | modify it is void, and will automatically terminate your rights under
412 | this License (including any patent licenses granted under the third
413 | paragraph of section 11).
414 | 
415 |   However, if you cease all violation of this License, then your
416 | license from a particular copyright holder is reinstated (a)
417 | provisionally, unless and until the copyright holder explicitly and
418 | finally terminates your license, and (b) permanently, if the copyright
419 | holder fails to notify you of the violation by some reasonable means
420 | prior to 60 days after the cessation.
421 | 
422 |   Moreover, your license from a particular copyright holder is
423 | reinstated permanently if the copyright holder notifies you of the
424 | violation by some reasonable means, this is the first time you have
425 | received notice of violation of this License (for any work) from that
426 | copyright holder, and you cure the violation prior to 30 days after
427 | your receipt of the notice.
428 | 
429 |   Termination of your rights under this section does not terminate the
430 | licenses of parties who have received copies or rights from you under
431 | this License.  If your rights have been terminated and not permanently
432 | reinstated, you do not qualify to receive new licenses for the same
433 | material under section 10.
434 | 
435 |   9. Acceptance Not Required for Having Copies.
436 | 
437 |   You are not required to accept this License in order to receive or
438 | run a copy of the Program.  Ancillary propagation of a covered work
439 | occurring solely as a consequence of using peer-to-peer transmission
440 | to receive a copy likewise does not require acceptance.  However,
441 | nothing other than this License grants you permission to propagate or
442 | modify any covered work.  These actions infringe copyright if you do
443 | not accept this License.  Therefore, by modifying or propagating a
444 | covered work, you indicate your acceptance of this License to do so.
445 | 
446 |   10. Automatic Licensing of Downstream Recipients.
447 | 
448 |   Each time you convey a covered work, the recipient automatically
449 | receives a license from the original licensors, to run, modify and
450 | propagate that work, subject to this License.  You are not responsible
451 | for enforcing compliance by third parties with this License.
452 | 
453 |   An "entity transaction" is a transaction transferring control of an
454 | organization, or substantially all assets of one, or subdividing an
455 | organization, or merging organizations.  If propagation of a covered
456 | work results from an entity transaction, each party to that
457 | transaction who receives a copy of the work also receives whatever
458 | licenses to the work the party's predecessor in interest had or could
459 | give under the previous paragraph, plus a right to possession of the
460 | Corresponding Source of the work from the predecessor in interest, if
461 | the predecessor has it or can get it with reasonable efforts.
462 | 
463 |   You may not impose any further restrictions on the exercise of the
464 | rights granted or affirmed under this License.  For example, you may
465 | not impose a license fee, royalty, or other charge for exercise of
466 | rights granted under this License, and you may not initiate litigation
467 | (including a cross-claim or counterclaim in a lawsuit) alleging that
468 | any patent claim is infringed by making, using, selling, offering for
469 | sale, or importing the Program or any portion of it.
470 | 
471 |   11. Patents.
472 | 
473 |   A "contributor" is a copyright holder who authorizes use under this
474 | License of the Program or a work on which the Program is based.  The
475 | work thus licensed is called the contributor's "contributor version".
476 | 
477 |   A contributor's "essential patent claims" are all patent claims
478 | owned or controlled by the contributor, whether already acquired or
479 | hereafter acquired, that would be infringed by some manner, permitted
480 | by this License, of making, using, or selling its contributor version,
481 | but do not include claims that would be infringed only as a
482 | consequence of further modification of the contributor version.  For
483 | purposes of this definition, "control" includes the right to grant
484 | patent sublicenses in a manner consistent with the requirements of
485 | this License.
486 | 
487 |   Each contributor grants you a non-exclusive, worldwide, royalty-free
488 | patent license under the contributor's essential patent claims, to
489 | make, use, sell, offer for sale, import and otherwise run, modify and
490 | propagate the contents of its contributor version.
491 | 
492 |   In the following three paragraphs, a "patent license" is any express
493 | agreement or commitment, however denominated, not to enforce a patent
494 | (such as an express permission to practice a patent or covenant not to
495 | sue for patent infringement).  To "grant" such a patent license to a
496 | party means to make such an agreement or commitment not to enforce a
497 | patent against the party.
498 | 
499 |   If you convey a covered work, knowingly relying on a patent license,
500 | and the Corresponding Source of the work is not available for anyone
501 | to copy, free of charge and under the terms of this License, through a
502 | publicly available network server or other readily accessible means,
503 | then you must either (1) cause the Corresponding Source to be so
504 | available, or (2) arrange to deprive yourself of the benefit of the
505 | patent license for this particular work, or (3) arrange, in a manner
506 | consistent with the requirements of this License, to extend the patent
507 | license to downstream recipients.  "Knowingly relying" means you have
508 | actual knowledge that, but for the patent license, your conveying the
509 | covered work in a country, or your recipient's use of the covered work
510 | in a country, would infringe one or more identifiable patents in that
511 | country that you have reason to believe are valid.
512 | 
513 |   If, pursuant to or in connection with a single transaction or
514 | arrangement, you convey, or propagate by procuring conveyance of, a
515 | covered work, and grant a patent license to some of the parties
516 | receiving the covered work authorizing them to use, propagate, modify
517 | or convey a specific copy of the covered work, then the patent license
518 | you grant is automatically extended to all recipients of the covered
519 | work and works based on it.
520 | 
521 |   A patent license is "discriminatory" if it does not include within
522 | the scope of its coverage, prohibits the exercise of, or is
523 | conditioned on the non-exercise of one or more of the rights that are
524 | specifically granted under this License.  You may not convey a covered
525 | work if you are a party to an arrangement with a third party that is
526 | in the business of distributing software, under which you make payment
527 | to the third party based on the extent of your activity of conveying
528 | the work, and under which the third party grants, to any of the
529 | parties who would receive the covered work from you, a discriminatory
530 | patent license (a) in connection with copies of the covered work
531 | conveyed by you (or copies made from those copies), or (b) primarily
532 | for and in connection with specific products or compilations that
533 | contain the covered work, unless you entered into that arrangement,
534 | or that patent license was granted, prior to 28 March 2007.
535 | 
536 |   Nothing in this License shall be construed as excluding or limiting
537 | any implied license or other defenses to infringement that may
538 | otherwise be available to you under applicable patent law.
539 | 
540 |   12. No Surrender of Others' Freedom.
541 | 
542 |   If conditions are imposed on you (whether by court order, agreement or
543 | otherwise) that contradict the conditions of this License, they do not
544 | excuse you from the conditions of this License.  If you cannot convey a
545 | covered work so as to satisfy simultaneously your obligations under this
546 | License and any other pertinent obligations, then as a consequence you may
547 | not convey it at all.  For example, if you agree to terms that obligate you
548 | to collect a royalty for further conveying from those to whom you convey
549 | the Program, the only way you could satisfy both those terms and this
550 | License would be to refrain entirely from conveying the Program.
551 | 
552 |   13. Use with the GNU Affero General Public License.
553 | 
554 |   Notwithstanding any other provision of this License, you have
555 | permission to link or combine any covered work with a work licensed
556 | under version 3 of the GNU Affero General Public License into a single
557 | combined work, and to convey the resulting work.  The terms of this
558 | License will continue to apply to the part which is the covered work,
559 | but the special requirements of the GNU Affero General Public License,
560 | section 13, concerning interaction through a network will apply to the
561 | combination as such.
562 | 
563 |   14. Revised Versions of this License.
564 | 
565 |   The Free Software Foundation may publish revised and/or new versions of
566 | the GNU General Public License from time to time.  Such new versions will
567 | be similar in spirit to the present version, but may differ in detail to
568 | address new problems or concerns.
569 | 
570 |   Each version is given a distinguishing version number.  If the
571 | Program specifies that a certain numbered version of the GNU General
572 | Public License "or any later version" applies to it, you have the
573 | option of following the terms and conditions either of that numbered
574 | version or of any later version published by the Free Software
575 | Foundation.  If the Program does not specify a version number of the
576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 | 
579 |   If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 | 
584 |   Later license versions may give you additional or different
585 | permissions.  However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 | 
589 |   15. Disclaimer of Warranty.
590 | 
591 |   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 | 
600 |   16. Limitation of Liability.
601 | 
602 |   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 | 
612 |   17. Interpretation of Sections 15 and 16.
613 | 
614 |   If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 | 
621 |                      END OF TERMS AND CONDITIONS
622 | 
623 |             How to Apply These Terms to Your New Programs
624 | 
625 |   If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 | 
629 |   To do so, attach the following notices to the program.  It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 | 
634 |     <one line to give the program's name and a brief idea of what it does.>
635 |     Copyright (C) <year>  <name of author>
636 | 
637 |     This program is free software: you can redistribute it and/or modify
638 |     it under the terms of the GNU General Public License as published by
639 |     the Free Software Foundation, either version 3 of the License, or
640 |     (at your option) any later version.
641 | 
642 |     This program is distributed in the hope that it will be useful,
643 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
644 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
645 |     GNU General Public License for more details.
646 | 
647 |     You should have received a copy of the GNU General Public License
648 |     along with this program.  If not, see <https://www.gnu.org/licenses/>.
649 | 
650 | Also add information on how to contact you by electronic and paper mail.
651 | 
652 |   If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 | 
655 |     <program>  Copyright (C) <year>  <name of author>
656 |     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 |     This is free software, and you are welcome to redistribute it
658 |     under certain conditions; type `show c' for details.
659 | 
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License.  Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 | 
664 |   You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | <https://www.gnu.org/licenses/>.
668 | 
669 |   The GNU General Public License does not permit incorporating your program
670 | into proprietary programs.  If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library.  If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License.  But first, please read
674 | <https://www.gnu.org/licenses/why-not-lgpl.html>.
675 | 


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