🃏 Deck Probability Simulator

Estimate the chance your randomly generated 40-card Yu-Gi-Oh! Forbidden Memories deck meets your specified card or card-type requirements via Monte Carlo simulation.

🚀 Usage

1. Click + Add Requirement to start defining what your deck should contain.
2. For each requirement group:
   • Choose Card or Type.
   • Enter one or more alternatives (e.g. “Dark Hole” or select “equip”).
   • Set Min and Max counts.
3. Adjust Trials if desired (more trials → more accurate, but slower).
4. Click Run Simulation.
5. View the probability summary and copy or bookmark results as needed.

✨ Features

• 🎯 Custom Requirements
  • Require exact counts or ranges (min/max) of specific cards (e.g. “2 Dark Hole”)
  • Require counts or ranges of whole card types (e.g. “at least 3 Spellcaster-type monsters”)
  • Support for OR-groups (e.g. “Raigeki or Dark Hole”)
• 🔄 Monte Carlo Sampling
  • Configurable number of trials (default: 1 000 000)
  • Automatic forced inclusion of at least one Magic card, one Equip card, and one of a default pair (Raigeki/Dark Hole) if none were sampled
• 💾 Persistence
  • Requirements are saved in a cookie so you don’t lose your list when you reload the page
• 📈 Summary Report
  • Displays a human-readable list of your requirements and the calculated probability (as percentage and “1 in X” odds)

📊 Data Source

Card drop rates and metadata are derived from here:

GenericMadScientist/FM-Manip-Tool
https://github.com/GenericMadScientist/FM-Manip-Tool/blob/master/data/FmDatabase.db

Only the necessary fields (card_id, name, type, cdf drop-rate) were extracted into assets/cards_data.json.

📄 License

This project is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0).
Feel free to use, modify, and share, provided you give appropriate credit.