Learn Vim by playing. VIM Master is an interactive, browser-based game designed to teach Vim commands through short, focused lessons, progressive difficulty, and gamification.

✨ Features

• 🎮 Interactive Learning: Learn Vim commands directly in a simulated editor environment.
• 🏆 Gamification: Earn XP, build Combos, and unlock achievements and badges as you progress.
• 📚 JSON-Driven Engine: Every lesson is a self-contained JSON file, making it incredibly easy to add new content.
• 🚀 Practice Arena: Test your speed and accuracy in time-limited challenges.
• 📘 Cheat Mode: An easily accessible command reference to help you remember commands.
• 💾 Local Saves: Your progress, badges, and XP are automatically saved locally and can be imported/exported.

🚀 Quick Start

To run the game locally:

git clone https://github.com/renzorlive/vimmaster.git
cd vimmaster
npm install
npm run check
npm start

The game will be served locally via Vite (usually on http://localhost:5173/).

🏗️ Architecture

Starting with V3, VIM Master uses a Content Platform Architecture:

• Engine as API: The game engine purely consumes content. It does not hardcode lessons.
• One JSON = One Lesson: All content lives in content/lessons/*.json.
• Content Provider: During build time (npm run build:content), JSON lessons are compiled into a single optimized source of truth (content/index.json) that the engine reads.

Project Structure

content/     # JSON lessons and schema definitions
docs/        # Community guides, architecture, and principles
js/          # Game engine, progress system, and UI components
tests/       # Contract, Golden, and Regression test suites

🛡️ Testing & Validation

VIM Master takes stability seriously. We employ a robust 4-pillar testing strategy:

• Contract Suite (npm run test:contract): Validates all JSON lessons against strict schemas. It ensures no missing fields, valid metadata, and valid keys.
• Golden Suite (npm run test:golden): E2E validation. It runs the exact keypresses from a lesson's solution array through the actual game engine and validates that the final editor state matches the expected targetContent.
• Regression Suite: Protects against previously resolved bugs (e.g. Save Corruption TD-0001) re-emerging.
• Unit Suite: Verifies internal state logic and helper functions.

Run all tests at once using:

npm run check

🤝 Contributing

Community First! Our architecture is designed specifically so that anyone can contribute new lessons without needing to touch or understand the game engine code.

Want to add a new lesson for a Vim command? Just copy an existing JSON file, edit the text, and open a PR! 👉 Read our full guide: Contributing a Lesson

🗺️ Roadmap

• ✅ V2 Architecture Freeze: JSON-driven content migration complete.
• ✅ Community Alpha: Testing suites, documentation, and gamification (XP/Combo) integrated.
• 🚧 V3 UX Polish: First-Time User Experience (FTUE), minimalist UI, and reduced cognitive load.
• 🔜 Public Beta: Launch and community lesson gathering.

📄 License

MIT License