🎮 Bluetooth Tic Tac Toe Game (Android)

A peer-to-peer multiplayer game built for Android using Jetpack Compose and Bluetooth communication. Supports offline gameplay over Bluetooth, where one device hosts the game and others join as clients.

🚀 Features

• Offline multiplayer over Bluetooth
• Host-client architecture using BluetoothServerSocket and BluetoothSocket
• Real-time state synchronization using socket streams
• Player role assignment and turn-based logic
• Jetpack Compose UI
• Clean Architecture (Domain, Data, Presentation layers)

🛠 Tech Stack

• Kotlin
• Jetpack Compose
• Bluetooth Classic (RFCOMM)
• Hilt (for Dependency Injection)
• Coroutines + Flow (for async streams)
• MVVM + Clean Architecture

📸 Screenshots

Host Select Role	Game In Progress	Game Over

📦 Installation

1. Clone the repo:

   git clone https://github.com/milanmaji/BluetoothTicTacToe.git

2. Open in Android Studio.

3. Enable required permissions in AndroidManifest.xml:

   <uses-permission android:name="android.permission.BLUETOOTH"/>
   <uses-permission android:name="android.permission.BLUETOOTH_SCAN" android:usesPermissionFlags="neverForLocation"
       tools:targetApi="31" />
   <uses-permission android:name="android.permission.BLUETOOTH_CONNECT" />
   <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
   <uses-permission android:name="android.permission.VIBRATE"/>

4. Run on two physical Android devices with Bluetooth turned on.

🧩 How It Works

• The Host creates a game session and starts a Bluetooth server socket.
• Clients discover and connect to the host device.
• The Host handles game logic, while clients send their moves.
• Game state is synchronized across devices using Bluetooth message passing.