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Online Crash Gambling Game Web App Built with the MERN Stack

Home Page: https://effulgent-travesseiro-c05997.netlify.app

JavaScript 78.79% HTML 2.69% CSS 18.52%

crash gambling mern-stack react

online-crash-gambling-simulator's Introduction

Crash Gambling Simulator

A recreation of the popular online casino game "crash" with accurate casino odds.

Technologies Used

React.js - JS framework used to create the frontend.
Express.js - The backend server environment and serves as an API.
Node.js - JS environment that executes JS outside of the browser.
Socket.io - Allows communication between the server and client in real time.
MongoDB - NoSQL database used to store all user and server information.
Passport.js - Middleware used to authenticate and authorize users. Handles logins and registrations.
bcrypt.js - Secures user passwords by hashing all passwords before storing in database.
Chart.js - Create visualizations of data through charts and graphs like line graphs.
HTML
CSS

Features

Login system - Users must log in or create an account to place bets.
Betting system - Users wager their balance before the round begins. A multiplier counts up from 1.00 and users can cash out at any time, multiplying their bet amount by the current multiplier. The multiplier will stop, or crash, at a randomly generated value, and users who have not cashed out yet will lose their entire bet.
Accurate Gambling Odds - Every crash value is generated using the same algorithms real casinos use, including a 3% house edge.
Live Bet Tracker - Users can see other users betting live. When a user places a bet, their username and bet amount are added to a live table. When the user cashes out, their cash out multiplier and profit are also added.
Game History - Displays the crash values of the last 25 games played along with the streak of games with crash values above or below 2.00.
Chat - Users who are logged in can send messages to other users through chat
Live Line Graph - Visualization of the current multiplier with respect to time.

Installation

// Clone the repository
$ git clone https://github.com/wbrandon25/Online-Crash-Gambling-Simulator

// Navigate to directory
$ cd ./Online-Crash-Gambling-Simulator

Setup and Run Client

// Navigate to client directory 
$ cd ./client

// install packages
$ npm i 

// start client (localhost:3000)
$ npm start

// For running in production
$ npm run build
$ npm start

Setup and Run Server

// Navigate to server directory 
$ cd ./backend

// install packages
$ npm i 

// install nodemon for development
$ npm i -D nodemon

// start node server (localhost:4000) and socket.io server (localhost:3001) 
$ npm start

Environment Variables

MONGOOSE_DB_LINK - URL to MongoDB server
PASSPORT_SECRET - Secret for Passport.js authorization and authentication

online-crash-gambling-simulator's People

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online-crash-gambling-simulator's Issues

Slowness and response

The game is quite slow and it's not that responsive when it comes to staking and opening account

FIXED - Cannot read properties of null (reading 'previous_crashes')

FIXED
I got the game running. I solved the issue this way.

1. At server.js add the following code after the MongoDB connection line:

const crashSchema = new mongoose.Schema(
{ round_number: Number,
active_player_id_list: [String],
multiplier_crash: Number,
b_betting_phase: Boolean,
b_game_phase: Boolean,
b_cashout_phase: Boolean,
time_now: Number,
previous_crashes: [Number],
round_id_list: [Number],
chat_messages_list: []
}
);

const Crash = mongoose.model(
'Crash', crashSchema
);

Crash.create({
round_number: 1,
active_player_id_list: [],
multiplier_crash: 0,
b_betting_phase: false,
b_game_phase: false,
b_cashout_phase: false,
time_now: -1,
previous_crashes: [],
round_id_list: 0,
chat_messages_list: []
})
.then(result => {
console.log(result)
});

Save it and run the server. It will now automatically generate the documents.
NOTE: The server will crash thats OK!

2. Now, copy the ID of the document and paste it in server.js at GAME_LOOP_ID.
3. Go to /models/game_loop.js and change:
const game_loop = new mongoose.Schema => const crashSchema = new mongoose.Schema
mongoose.model("game_loop", game_loop); => mongoose.model("Crash", crashSchema);

4. In the root folder, create an .evn file with the following line:
PASSPORT_SECRET = "YOURPASSWORDHERE"

5. Go back to server.js and delete or comment out the code you added in step 1.
6. Restart the server and enjoy. This is how it worked for me.

Original message:
Noticed the other issues claiming the same but without a clear answer still.. App does connect to my mongodb, i can see it in the connections list, however.. schema's arent generated even though the app has permission. Adding the game_loop schema manually also not solves the problem

App crashes

I'm having a problem with npm start in backend. What might cause this?

MongooseError: Operation `game_loops.findOne()` buffering timed out after 10000ms

it wont stop giving me this error: MongooseError: Operation game_loops.findOne() buffering timed out after 10000ms
it happens when i run npm start on backend

Issue with backend

I get this issue with the backend while running npm start.

Preview

app keeps crashing

i installed all the files and then put them in replit and i run all the commands for the backend server and when i do npm start it says the app crashes

help

Error: error:0308010C:digital envelope routines::unsupported
at new Hash (node:internal/crypto/hash:69:19)
at Object.createHash (node:crypto:133:10)
at module.exports (C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\webpack\lib\util\createHash.js:135:53)
at NormalModule._initBuildHash (C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\webpack\lib\NormalModule.js:417:16)
at handleParseError (C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\webpack\lib\NormalModule.js:471:10)
at C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\webpack\lib\NormalModule.js:503:5
at C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\webpack\lib\NormalModule.js:358:12
at C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\loader-runner\lib\LoaderRunner.js:373:3
at iterateNormalLoaders (C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\loader-runner\lib\LoaderRunner.js:214:10)
at iterateNormalLoaders (C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\loader-runner\lib\LoaderRunner.js:221:10)
C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\react-scripts\scripts\start.js:19
throw err;
^

Error: error:0308010C:digital envelope routines::unsupported
at new Hash (node:internal/crypto/hash:69:19)
at Object.createHash (node:crypto:133:10)
at module.exports (C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\webpack\lib\util\createHash.js:135:53)
at NormalModule._initBuildHash (C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\webpack\lib\NormalModule.js:417:16)
at C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\webpack\lib\NormalModule.js:452:10
at C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\webpack\lib\NormalModule.js:323:13
at C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\loader-runner\lib\LoaderRunner.js:367:11
at C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\loader-runner\lib\LoaderRunner.js:233:18
at context.callback (C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\loader-runner\lib\LoaderRunner.js:111:13)
at C:\Users\DELL\Desktop\Nowy folder\Online-Crash-Gambling-Simulator\client\node_modules\babel-loader\lib\index.js:59:103 {
opensslErrorStack: [ 'error:03000086:digital envelope routines::initialization error' ],
library: 'digital envelope routines',
reason: 'unsupported',
code: 'ERR_OSSL_EVP_UNSUPPORTED'

Game History not showing

The last 25 crash history is not showing. Any ideas? I check db and it is empty. Probably issue saving to MongoDB

Register and Login

What did I not do that would prevent Register and Login from working?