🎴 AI Magic Cards Generator

Generate custom Magic: The Gathering cards using AI-powered creativity! ✨

An ASP.NET Core MVC application that harnesses the power of Groq's LLM to create unique MTG cards based on existing card data from Scryfall. Generate, visualize, and explore AI-crafted cards with authentic MTG styling.

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✨ Features

🎨 AI Card Generation - Leverage Groq's Llama 3.3 70B model to generate balanced, creative MTG cards

🖼️ AI Card Artwork - Generate custom card artwork using HuggingFace's Stable Diffusion XL

📥 Scryfall Integration - Import bulk card data directly from Scryfall's comprehensive database

🎴 Card Sharing & Gallery - Share your generated cards in a public gallery for others to see

❤️ Like System - Like your favorite cards with real-time updates via Server-Sent Events

💾 Card Persistence - All generated cards saved to database with image data and metadata

🔐 User Authentication - ASP.NET Core Identity integration for card ownership and likes

🎯 CMC-Based Balance - Cards are generated based on converted mana cost for power-level consistency

🔍 Card Browser - Browse and search through imported cards with pagination

🎭 Multi-Color Support - Full support for all color identities (W/U/B/R/G/Multicolor/Colorless)

⏱️ Rate Limiting - Built-in rate limiting to prevent API abuse on card generation

📊 Database Storage - SQLite-based persistence with EF Core for fast querying

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🚀 Quick Start

Prerequisites

• ✅ .NET 10.0 SDK
• ✅ Groq API Key (free tier available)
• ✅ HuggingFace API Key (for card artwork generation)
• ✅ SQLite support (included with .NET)

Installation

1. Clone the repository

git clone https://github.com/yourusername/AiMagicCardsGenerator.git
cd AiMagicCardsGenerator

2. Configure your API keys

Edit appsettings.Development.json:

{
  "Groq": {
    "ApiKey": "your-groq-api-key-here"
  },
  "HuggingFace": {
    "ApiKey": "your-huggingface-api-key-here"
  }
}

Or use .NET User Secrets (recommended):

dotnet user-secrets set "Groq:ApiKey" "your-groq-api-key-here"
dotnet user-secrets set "HuggingFace:ApiKey" "your-huggingface-api-key-here"

3. Download assets

Run PowerShell scripts to download card frames and mana symbols:

cd wwwroot/assets
./download_frames.ps1
./download_symbols.ps1

4. Apply database migrations

dotnet ef database update

5. Run the application

dotnet run

Visit https://localhost:7073 🎉

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🎮 Usage

Import Card Data 📦

1. Navigate to Data section
2. View Scryfall bulk data information
3. Click Import Cards to download and populate the database
4. Wait for import completion (~100k+ cards)

Generate New Cards ✨

Via Web Interface:

1. Go to Generator page
2. Click Generate Random Card
3. View the generated card on the result page
4. Share your card to the public gallery
5. Download as PNG image
6. Rate-limited to prevent abuse

Browse and Like Shared Cards ❤️

1. Visit the Home page to see the gallery of shared cards
2. View recently shared cards and top-liked cards
3. Sign in to like cards (ASP.NET Core Identity)
4. Real-time like count updates via Server-Sent Events

Browse Imported Cards 🔍

1. Visit Cards section
2. Browse paginated card list (20 per page)
3. Click any card to view full details
4. Search and filter capabilities

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🛠️ Tech Stack

Backend:

• 🔷 ASP.NET Core 10.0 MVC
• 🗄️ Entity Framework Core with SQLite
• 🔐 ASP.NET Core Identity
• 🌐 HttpClient for external APIs

AI & APIs:

• 🤖 Groq - Llama 3.3 70B LLM for card design
• 🎨 HuggingFace - Stable Diffusion XL for card artwork
• 🃏 Scryfall API - MTG card database

Image Processing:

• 🎨 SixLabors.ImageSharp - Image manipulation
• ✏️ ImageSharp.Drawing - Text and shape rendering
• 🔤 ImageSharp.Fonts - Custom font rendering
• 📐 Svg - SVG mana symbol rendering

Frontend:

• 🎭 Razor Views with Bootstrap 5
• 💅 Custom CSS styling
• ⚡ Vanilla JavaScript
• 📡 Server-Sent Events (SSE) for real-time like updates

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📂 Project Structure

AiMagicCardsGenerator/
├── 🎮 Controllers/          # MVC Controllers
│   ├── HomeController.cs    # Gallery with likes & SSE
│   ├── DataController.cs    # Scryfall import
│   ├── CardsController.cs   # Card browsing
│   └── GeneratorController.cs # Generation & sharing
├── 📊 Models/
│   ├── Entities/            # Domain models
│   │   ├── Card.cs          # Imported Scryfall cards
│   │   ├── GeneratedCard.cs # User-generated cards
│   │   └── CardLike.cs      # Like relationships
│   └── Dto/                 # Data transfer objects
│       └── ScryfallModels.cs
├── 🗄️ Data/
│   ├── ApplicationDbContext.cs
│   └── Migrations/          # EF Core migrations
├── 🔧 Services/             # Business logic
│   ├── Interfaces/
│   │   ├── ICardService.cs
│   │   ├── IGeneratorService.cs
│   │   ├── IScryfallService.cs
│   │   ├── ICardRenderService.cs
│   │   ├── IImageGeneratorService.cs
│   │   ├── ICardLikeService.cs
│   │   └── ILikesBroadcastService.cs
│   ├── CardService.cs
│   ├── GeneratorService.cs
│   ├── ScryfallService.cs
│   ├── CardRenderService.cs
│   ├── ImageGeneratorService.cs # HuggingFace integration
│   ├── CardLikeService.cs
│   ├── LikesBroadcastService.cs # SSE broadcasting
│   └── CardRenderConfig.cs
├── 📦 Repositories/         # Data access
│   ├── Interfaces/
│   │   ├── ICardRepository.cs
│   │   ├── IGeneratedCardRepository.cs
│   │   └── ICardLikeRepository.cs
│   ├── CardRepository.cs
│   ├── GeneratedCardRepository.cs
│   └── CardLikeRepository.cs
├── 🎨 Views/                # Razor templates
├── 🔐 Areas/Identity/       # ASP.NET Core Identity pages
├── 🧪 AiMagicCardsGenerator.Tests/ # Unit tests
├── 🌐 wwwroot/
│   └── assets/
│       ├── frames/          # Card frame images
│       ├── fonts/           # MTG fonts
│       └── symbols/         # Mana symbols (SVG)
└── ⚙️ Program.cs            # Application entry point

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🎨 Card Generation Process

1. 🎯 CMC Selection - Randomly select target converted mana cost (1-7)
2. 🔍 Example Gathering - Fetch 5 random cards with matching CMC from database
3. 🤖 LLM Prompt - Send structured prompt to Groq API with examples
4. 📝 JSON Parsing - Extract and validate card data from LLM response
5. 🎨 Artwork Generation - Generate custom artwork via HuggingFace Stable Diffusion
6. 🖼️ Card Rendering - Generate card image using ImageSharp
   • Load appropriate color frame
   • Overlay generated artwork in art box
   • Render card name, mana cost, type line
   • Process oracle text with mana symbols
   • Add power/toughness for creatures
7. 💾 Database Storage - Save generated card with image data and metadata
8. ✅ Return Result - Redirect to result page with share and download options

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⚙️ Configuration

Required Settings

appsettings.json / appsettings.Development.json:

{
  "ConnectionStrings": {
    "DefaultConnection": "DataSource=mtg.db;Cache=Shared"
  },
  "Groq": {
    "ApiKey": "your-groq-api-key-here"
  },
  "HuggingFace": {
    "ApiKey": "your-huggingface-api-key-here"
  }
}

Asset Requirements

The application requires these assets in wwwroot/assets/:

• 🖼️ Card Frames - PNG images for each color (W/U/B/R/G/M/C)
• 🔤 Fonts - MTG-specific fonts (Beleren, Matrix, PlantinMTPro)
• ⚡ Symbols - SVG files for mana and tap symbols

Use provided PowerShell scripts to download automatically.

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🔧 Development

Building

# Build the project
dotnet build

# Run with hot reload
dotnet watch run

Database Migrations

# Add new migration
dotnet ef migrations add MigrationName

# Apply migrations
dotnet ef database update

# Remove last migration (if not applied)
dotnet ef migrations remove

Testing

# Run all tests
dotnet test

# Run specific test project
dotnet test AiMagicCardsGenerator.Tests/AiMagicCardsGenerator.Tests.csproj

# Run with detailed output
dotnet test --verbosity detailed

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🤝 Contributing

Contributions are welcome! Here's how you can help:

1. 🍴 Fork the repository
2. 🌿 Create a feature branch (git checkout -b feature/AmazingFeature)
3. 💾 Commit your changes (git commit -m '✨ Add some AmazingFeature')
4. 📤 Push to the branch (git push origin feature/AmazingFeature)
5. 🎯 Open a Pull Request

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📄 License

This project is licensed under the MIT License - see the LICENSE file for details.

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🙏 Acknowledgments

• 🃏 Scryfall for providing comprehensive MTG card data
• 🤖 Groq for fast and powerful LLM inference
• 🎨 Wizards of the Coast for creating Magic: The Gathering
• 🖼️ SixLabors for ImageSharp library

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⚠️ Disclaimer

This project is a fan-made tool and is not affiliated with, endorsed by, or associated with Wizards of the Coast. Magic: The Gathering is a trademark of Wizards of the Coast LLC. Card frames, fonts, and symbols are used for educational and demonstration purposes only.

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Made with ❤️ and AI

⭐ Star this repo if you find it useful!

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