Objection! AI

🏛️ A blockchain-powered courtroom where you present your case to determine if you're facing a human or AI opponent!

Step into Phoenix Wright's shoes and engage in dramatic courtroom dialogue, analyze responses, and prove your case beyond reasonable doubt! With multiple case types, cross-examinations, evidence presentation, and dynamic questioning - every trial is a unique experience.

⚖️ Live Demo: Try Objection! AI (Coming Soon)

Features

• Courtroom Drama: Engage in Phoenix Wright-style dialogue and cross-examination
• Turing Detection: Present evidence and determine if your opponent is human or AI
• NFT Badge Collection: Mint collectible courtroom victory badges for successful cases
• Blockchain-Powered: Built on Sui blockchain with Move smart contracts
• Mobile Courtroom: Responsive design works on all devices for on-the-go legal drama
• Multiple Game Modes: Standard chat and full Ace Attorney courtroom experience

Tech Stack

• Frontend: Next.js (App Router, React 18), Tailwind CSS
• DB & Auth: Supabase (Auth + Postgres)
• Blockchain: Sui Move modules for Badge minting
• Wallet: @mysten/dapp-kit, zkLogin integration for gasless sign-on
• Off-chain Storage: Walrus for Badge metadata
• LLM Integration: External AI API (e.g., OpenAI/Claude)

Getting Started

Prerequisites

• Node.js and Yarn
• Sui CLI (for Move development)
• Supabase account (for authentication and database)

Installation

1. Clone the repository:

   git clone https://github.com/yourusername/objection-ai.git
   cd objection-ai

2. Install dependencies:

   yarn install

3. Create environment variables:

   # In apps/frontend/.env.local
   NEXT_PUBLIC_SUPABASE_URL=your-supabase-url
   NEXT_PUBLIC_SUPABASE_ANON_KEY=your-supabase-anon-key
   NEXT_PUBLIC_AI_API_KEY=your-ai-api-key
   NEXT_PUBLIC_AI_API_URL=your-ai-api-url
   NEXT_PUBLIC_PACKAGE_ID=your-sui-package-id

4. Deploy the Move contract (requires Sui CLI):

   ./scripts/deploy-move-local.sh

5. Run the development server:

   cd apps/frontend
   yarn dev

Project Structure

/ (monorepo root)
├── apps
│   └── frontend                  # Next.js application
│       ├── public                # Static assets: favicon, logo
│       ├── src
│       │   ├── app
│       │   │   ├── layout.tsx    # Wraps providers & global styles
│       │   │   ├── page.tsx      # Landing / single-chat interface
│       │   │   └── profile       # /profile: user badges gallery
│       │   ├── components        # Reusable UI
│       │   ├── context           # AuthContext, ChatContext
│       │   ├── hooks             # useBadges
│       │   └── utils             # LLM client, Sui tx builders
│       └── package.json
│
├── contracts
│   └── move                     # Sui Move modules
│       ├── src
│       │   └── ObjectionAI.move   # entry: mint_badge(session_id, correct)
│       └── Move.toml
│
└── scripts                      # Deployment scripts

License

MIT

Game Modes

Standard Mode

The default chat experience with a clean, modern interface. Users have 60 seconds to chat and determine if they're talking to an AI or human.

Ace Attorney Mode

The signature experience inspired by the "Phoenix Wright: Ace Attorney" video game series. Features:

• Full Courtroom Experience: Complete Phoenix Wright vs. Prosecutor debate-style interface
• Character Sprites: Animated Phoenix and Prosecutor characters with authentic expressions
• Dramatic Sound Effects: Classic "OBJECTION!" calls, courtroom sounds, and text blips
• Strategic Gameplay: Limited messages force strategic questioning and deduction
• Authentic Animations: Dramatic "OBJECTION!" and "HOLD IT!" text effects

This is the primary mode that captures the true spirit of Objection! AI - step into Phoenix Wright's shoes and prove your case!

Adding Ace Attorney Assets

To fully experience this mode, you'll need to add sound effects and character sprites:

1. See the README in /apps/frontend/public/ace-attorney/ for setup instructions
2. Add sound files to /apps/frontend/public/ace-attorney/sounds/
3. Add character sprites to /apps/frontend/public/ace-attorney/

Acknowledgments

• Sui Foundation
• Mysten Labs
• Supabase
• Next.js
• Capcom - Inspiration for Ace Attorney Mode