rajukottedi/ludo-web-multiplayer
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fixed timeout issue

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implemented timeoutManager, a more efficient solution for managing timeouts in RAM memory. this resolves the problem of lingering timeouts in the server, providing faster removal of old timeouts and improving overall performance.
This commit is contained in:
Wenszel 2023-12-20 10:17:49 +01:00
parent f07c1c8577
commit e5a69fa4a9
8 changed files with 381 additions and 28 deletions
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29
README.md
View File

@ -1,11 +1,14 @@
# <center>Online Multiplayer Ludo Game</center>
## About
<h1 align="center">Online Multiplayer Ludo Game </h1>
Ludo Online is a multiplayer web-based implementation of the classic board game Ludo, built using the MERN stack and integrated with SocketIO for real-time communication.
\>\> Play Online here <<
\>\> [Watch YouTube Video here](https://youtu.be/mGMnH9Nvsyw) <<
<p align="center">
>> Play Online here <<
</p>
<p align="center">
>> <a href="https://youtu.be/mGMnH9Nvsyw">Watch YouTube Video here</a> <<
</p>
## Architecture
@ -14,34 +17,50 @@ Ludo Online is a multiplayer web-based implementation of the classic board game
## Tech Stack
Frontend:
![JavaScript](https://img.shields.io/badge/javascript-%23323330.svg?style=for-the-badge&logo=javascript&logoColor=%23F7DF1E) ![React](https://img.shields.io/badge/react-%2320232a.svg?style=for-the-badge&logo=react&logoColor=%2361DAFB) ![React Router](https://img.shields.io/badge/React_Router-CA4245?style=for-the-badge&logo=react-router&logoColor=white)
![CSS3](https://img.shields.io/badge/css3-%231572B6.svg?style=for-the-badge&logo=css3&logoColor=white) ![HTML5](https://img.shields.io/badge/html5-%23E34F26.svg?style=for-the-badge&logo=html5&logoColor=white) ![MUI](https://img.shields.io/badge/MUI-%230081CB.svg?style=for-the-badge&logo=mui&logoColor=white)
Backend:
![MongoDB](https://img.shields.io/badge/MongoDB-%234ea94b.svg?style=for-the-badge&logo=mongodb&logoColor=white) ![Express.js](https://img.shields.io/badge/express.js-%23404d59.svg?style=for-the-badge&logo=express&logoColor=%2361DAFB) ![Socket.io](https://img.shields.io/badge/Socket.io-black?style=for-the-badge&logo=socket.io&badgeColor=010101) ![NodeJS](https://img.shields.io/badge/node.js-6DA55F?style=for-the-badge&logo=node.js&logoColor=white)
Tests:
![cypress](https://img.shields.io/badge/-cypress-%23E5E5E5?style=for-the-badge&logo=cypress&logoColor=058a5e) ![Mocha](https://img.shields.io/badge/-mocha-%238D6748?style=for-the-badge&logo=mocha&logoColor=white) ![Jest](https://img.shields.io/badge/-jest-%23C21325?style=for-the-badge&logo=jest&logoColor=white)
Tools:
![Docker](https://img.shields.io/badge/docker-%230db7ed.svg?style=for-the-badge&logo=docker&logoColor=white) ![AWS](https://img.shields.io/badge/AWS-%23FF9900.svg?style=for-the-badge&logo=amazon-aws&logoColor=white) ![CircleCI](https://img.shields.io/badge/circle%20ci-%23161616.svg?style=for-the-badge&logo=circleci&logoColor=white) ![Git](https://img.shields.io/badge/git-%23F05033.svg?style=for-the-badge&logo=git&logoColor=white) ![Jira](https://img.shields.io/badge/jira-%230A0FFF.svg?style=for-the-badge&logo=jira&logoColor=white)
## Key Features and Challenges
- Maintained session consistency with **Express Session** and **MongoDB**.
- Enabled real-time communication via **WebSocket** and **SocketIO**.
- Maintained code reliability by implementing unit and integration tests using **Mocha**, **Chai**, and **Jest**.
- Hosted in a **Docker** container on **AWS EC2**.
- Established CI/CD using **CircleCI**.
- Implemented E2E tests utilizing **Cypress**, addressing challenges related to [testing collaboration](https://docs.cypress.io/guides/references/trade-offs#Multiple-browsers-open-at-the-same-time) and canvas functionality in the application.
## Installation
1. Download this repository
2. Generate your own [mongoDB atlas](https://www.mongodb.com) credential URL. It should looks like this:
```
mongodb+srv://madmin:<password>@clustername.mongodb.net/<dbname>?retryWrites=true&w=majority
```
3. Add this URL to the /backend/credentials.js file
4. Perform these commands in the main directory:
```

4
backend/handlers/playerHandler.js
View File

@ -1,5 +1,5 @@
const { getRoom, updateRoom } = require('../services/roomService');
const { colors } = require('../utils/constants');
const { COLORS } = require('../utils/constants');
module.exports = socket => {
const req = socket.request;
@ -44,7 +44,7 @@ module.exports = socket => {
if (err) return socket.disconnect();
req.session.roomId = room._id.toString();
req.session.playerId = room.players[room.players.length - 1]._id.toString();
req.session.color = colors[room.players.length - 1];
req.session.color = COLORS[room.players.length - 1];
req.session.save();
socket.join(room._id.toString());
socket.emit('player:data', JSON.stringify(req.session));

26
backend/models/room.js
View File

@ -1,6 +1,7 @@
const mongoose = require('mongoose');
const { colors } = require('../utils/constants');
const { COLORS, MOVE_TIME } = require('../utils/constants');
const { makeRandomMove } = require('../handlers/handlersFunctions');
const timeoutManager = require('./timeoutManager.js');
const PawnSchema = require('./pawn');
const PlayerSchema = require('./player');
@ -12,7 +13,6 @@ const RoomSchema = new mongoose.Schema({
started: { type: Boolean, default: false },
full: { type: Boolean, default: false },
nextMoveTime: Number,
timeoutID: Number,
rolledNumber: Number,
players: [PlayerSchema],
winner: { type: String, default: null },
@ -24,10 +24,10 @@ const RoomSchema = new mongoose.Schema({
let pawn = {};
pawn.basePos = i;
pawn.position = i;
if (i < 4) pawn.color = colors[0];
else if (i < 8) pawn.color = colors[1];
else if (i < 12) pawn.color = colors[2];
else if (i < 16) pawn.color = colors[3];
if (i < 4) pawn.color = COLORS[0];
else if (i < 8) pawn.color = COLORS[1];
else if (i < 12) pawn.color = COLORS[2];
else if (i < 16) pawn.color = COLORS[3];
startPositions.push(pawn);
}
return startPositions;
@ -54,10 +54,10 @@ RoomSchema.methods.changeMovingPlayer = function () {
} else {
this.players[playerIndex + 1].nowMoving = true;
}
this.nextMoveTime = Date.now() + 15000;
this.nextMoveTime = Date.now() + MOVE_TIME;
this.rolledNumber = null;
if (this.timeoutID) clearTimeout(this.timeoutID);
this.timeoutID = setTimeout(makeRandomMove, 15000, this._id.toString());
timeoutManager.clear(this._id.toString());
timeoutManager.set(makeRandomMove, MOVE_TIME, this._id.toString());
};
RoomSchema.methods.movePawn = function (pawn) {
@ -83,14 +83,14 @@ RoomSchema.methods.canStartGame = function () {
RoomSchema.methods.startGame = function () {
this.started = true;
this.nextMoveTime = Date.now() + 15000;
this.nextMoveTime = Date.now() + MOVE_TIME;
this.players.forEach(player => (player.ready = true));
this.players[0].nowMoving = true;
this.timeoutID = setTimeout(makeRandomMove, 15000, this._id.toString());
timeoutManager.set(makeRandomMove, MOVE_TIME, this._id.toString());
};
RoomSchema.methods.endGame = function (winner) {
this.timeoutID = null;
timeoutManager.clear(this._id.toString());
this.rolledNumber = null;
this.nextMoveTime = null;
this.players.map(player => (player.nowMoving = false));
@ -131,7 +131,7 @@ RoomSchema.methods.addPlayer = function (name, id) {
sessionID: id,
name: name,
ready: false,
color: colors[this.players.length],
color: COLORS[this.players.length],
});
};

19
backend/models/timeoutManager.js Normal file
View File

@ -0,0 +1,19 @@
const timeoutManager = {
timeouts: new Map(),
add: function (roomId, timeoutId) {
this.timeouts.set(roomId, timeoutId);
},
get: function (roomId) {
return this.timeouts.get(roomId);
},
clear: function (roomId) {
clearTimeout(this.timeouts.get(roomId));
this.timeouts.delete(roomId);
},
set: function (timeoutFunction, time, roomId) {
const timeoutId = setTimeout(timeoutFunction, time, roomId);
this.add(roomId, timeoutId);
},
};
module.exports = timeoutManager;

275
backend/package-lock.json generated
View File

@ -13,6 +13,7 @@
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"express-session": "^1.17.1",
"mongoose": "^5.12.0",
"sinon": "^17.0.1",
"socket.io": "^4.5.1"
},
"devDependencies": {
@ -21,6 +22,45 @@
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}
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@ -1257,6 +1296,11 @@
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@ -1293,6 +1337,11 @@
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@ -1676,6 +1725,55 @@
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@ -2039,6 +2137,42 @@
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},
"funding": {
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}
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@ -2306,7 +2440,6 @@
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@ -2506,6 +2639,47 @@
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@ -3291,8 +3465,7 @@
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@ -3412,6 +3585,11 @@
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},
"lodash.get": {
"version": "4.4.2",
"resolved": "https://registry.npmjs.org/lodash.get/-/lodash.get-4.4.2.tgz",
"integrity": "sha512-z+Uw/vLuy6gQe8cfaFWD7p0wVv8fJl3mbzXh33RS+0oW2wvUqiRXiQ69gLWSLpgB5/6sU+r6BlQR0MBILadqTQ=="
},
"lodash.set": {
"version": "4.3.2",
"resolved": "https://registry.npmjs.org/lodash.set/-/lodash.set-4.3.2.tgz",
@ -3711,6 +3894,59 @@
"resolved": "https://registry.npmjs.org/negotiator/-/negotiator-0.6.2.tgz",
"integrity": "sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw=="
},
"nise": {
"version": "5.1.5",
"resolved": "https://registry.npmjs.org/nise/-/nise-5.1.5.tgz",
"integrity": "sha512-VJuPIfUFaXNRzETTQEEItTOP8Y171ijr+JLq42wHes3DiryR8vT+1TXQW/Rx8JNUhyYYWyIvjXTU6dOhJcs9Nw==",
"requires": {
"@sinonjs/commons": "^2.0.0",
"@sinonjs/fake-timers": "^10.0.2",
"@sinonjs/text-encoding": "^0.7.1",
"just-extend": "^4.0.2",
"path-to-regexp": "^1.7.0"
},
"dependencies": {
"@sinonjs/commons": {
"version": "2.0.0",
"resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-2.0.0.tgz",
"integrity": "sha512-uLa0j859mMrg2slwQYdO/AkrOfmH+X6LTVmNTS9CqexuE2IvVORIkSpJLqePAbEnKJ77aMmCwr1NUZ57120Xcg==",
"requires": {
"type-detect": "4.0.8"
}
},
"@sinonjs/fake-timers": {
"version": "10.3.0",
"resolved": "https://registry.npmjs.org/@sinonjs/fake-timers/-/fake-timers-10.3.0.tgz",
"integrity": "sha512-V4BG07kuYSUkTCSBHG8G8TNhM+F19jXFWnQtzj+we8DrkpSBCee9Z3Ms8yiGer/dlmhe35/Xdgyo3/0rQKg7YA==",
"requires": {
"@sinonjs/commons": "^3.0.0"
},
"dependencies": {
"@sinonjs/commons": {
"version": "3.0.0",
"resolved": "https://registry.npmjs.org/@sinonjs/commons/-/commons-3.0.0.tgz",
"integrity": "sha512-jXBtWAF4vmdNmZgD5FoKsVLv3rPgDnLgPbU84LIJ3otV44vJlDRokVng5v8NFJdCf/da9legHcKaRuZs4L7faA==",
"requires": {
"type-detect": "4.0.8"
}
}
}
},
"isarray": {
"version": "0.0.1",
"resolved": "https://registry.npmjs.org/isarray/-/isarray-0.0.1.tgz",
"integrity": "sha512-D2S+3GLxWH+uhrNEcoh/fnmYeP8E8/zHl644d/jdA0g2uyXvy3sb0qxotE+ne0LtccHknQzWwZEzhak7oJ0COQ=="
},
"path-to-regexp": {
"version": "1.8.0",
"resolved": "https://registry.npmjs.org/path-to-regexp/-/path-to-regexp-1.8.0.tgz",
"integrity": "sha512-n43JRhlUKUAlibEJhPeir1ncUID16QnEjNpwzNdO3Lm4ywrBpBZ5oLD0I6br9evr1Y9JTqwRtAh7JLoOzAQdVA==",
"requires": {
"isarray": "0.0.1"
}
}
}
},
"normalize-path": {
"version": "3.0.0",
"resolved": "https://registry.npmjs.org/normalize-path/-/normalize-path-3.0.0.tgz",
@ -3989,6 +4225,34 @@
"resolved": "https://registry.npmjs.org/sift/-/sift-13.5.2.tgz",
"integrity": "sha512-+gxdEOMA2J+AI+fVsCqeNn7Tgx3M9ZN9jdi95939l1IJ8cZsqS8sqpJyOkic2SJk+1+98Uwryt/gL6XDaV+UZA=="
},
"sinon": {
"version": "17.0.1",
"resolved": "https://registry.npmjs.org/sinon/-/sinon-17.0.1.tgz",
"integrity": "sha512-wmwE19Lie0MLT+ZYNpDymasPHUKTaZHUH/pKEubRXIzySv9Atnlw+BUMGCzWgV7b7wO+Hw6f1TEOr0IUnmU8/g==",
"requires": {
"@sinonjs/commons": "^3.0.0",
"@sinonjs/fake-timers": "^11.2.2",
"@sinonjs/samsam": "^8.0.0",
"diff": "^5.1.0",
"nise": "^5.1.5",
"supports-color": "^7.2.0"
},
"dependencies": {
"diff": {
"version": "5.1.0",
"resolved": "https://registry.npmjs.org/diff/-/diff-5.1.0.tgz",
"integrity": "sha512-D+mk+qE8VC/PAUrlAU34N+VfXev0ghe5ywmpqrawphmVZc1bEfn56uo9qpyGp1p4xpzOHkSW4ztBd6L7Xx4ACw=="
},
"supports-color": {
"version": "7.2.0",
"resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
"integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
"requires": {
"has-flag": "^4.0.0"
}
}
}
},
"sliced": {
"version": "1.0.1",
"resolved": "https://registry.npmjs.org/sliced/-/sliced-1.0.1.tgz",
@ -4187,8 +4451,7 @@
"type-detect": {
"version": "4.0.8",
"resolved": "https://registry.npmjs.org/type-detect/-/type-detect-4.0.8.tgz",
"integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g==",
"dev": true
"integrity": "sha512-0fr/mIH1dlO+x7TlcMy+bIDqKPsw/70tVyeHW787goQjhmqaZe10uwLujubK9q9Lg6Fiho1KUKDYz0Z7k7g5/g=="
},
"type-is": {
"version": "1.6.18",

1
backend/package.json
View File

@ -8,6 +8,7 @@
"express": "^4.17.1",
"express-session": "^1.17.1",
"mongoose": "^5.12.0",
"sinon": "^17.0.1",
"socket.io": "^4.5.1"
},
"devDependencies": {

50
backend/tests/models/timeoutManager.test.js Normal file
View File

@ -0,0 +1,50 @@
const chai = require('chai');
const sinon = require('sinon');
const timeoutManager = require('../../models/timeoutManager');
const { expect } = chai;
describe('timeoutManager', () => {
beforeEach(() => {
timeoutManager.timeouts.clear();
sinon.useFakeTimers({ shouldClearNativeTimers: true });
});
afterEach(() => {
sinon.restore();
});
it('should add a timeout to the map', () => {
timeoutManager.add('room1', 1);
expect(timeoutManager.timeouts.size).to.equal(1);
});
it('should get a timeout from the map', () => {
timeoutManager.add('room1', 1);
const timeoutId = timeoutManager.get('room1');
expect(timeoutId).to.equal(1);
});
it('should clear a timeout from the map', () => {
timeoutManager.add('room1', 1);
timeoutManager.clear('room1');
expect(timeoutManager.timeouts.size).to.equal(0);
});
it('should set a new timeout', () => {
const timeoutFunction = sinon.spy();
timeoutManager.set(timeoutFunction, 100, 'room1');
expect(timeoutManager.timeouts.size).to.equal(1);
sinon.clock.tick(101);
sinon.assert.calledOnce(timeoutFunction);
});
it('should not call the timeout function if cleared', () => {
const timeoutFunction = sinon.spy();
timeoutManager.set(timeoutFunction, 100, 'room1');
timeoutManager.clear('room1');
sinon.clock.tick(101);
sinon.assert.notCalled(timeoutFunction);
expect(timeoutManager.timeouts.size).to.equal(0);
});
});

5
backend/utils/constants.js
View File

@ -1,2 +1,3 @@
const colors = ["red", "blue", "green", "yellow"];
module.exports = { colors };
const COLORS = ['red', 'blue', 'green', 'yellow'];
const MOVE_TIME = 15000;
module.exports = { COLORS, MOVE_TIME };