Mastermind (Offline) — Terminal Game

A simple Mastermind game implemented in Swift that runs entirely in the terminal. The game allows you to play offline with an API-like command interface and supports multiple concurrent games, game switching, and guess history tracking.

Features

• Start multiple games and switch between them
• Make guesses and receive feedback (black & white pegs)
• Archive completed games
• Debug mode to reveal secret codes
• JSON output for all commands for easy parsing

Commands

Type help in the game for a detailed command list. Main commands include:

• game — Start a new game
• guess <1234> — Make a guess in the active game
• delete <game_id> — Delete a game
• list — List all active games and highlight the current one
• switch <game_id> — Switch to a different active game
• history — List all archived games by their IDs
• history <game_id> — Show the guess trace for a specific game
• help — Show help message
• exit — Exit the game

Notes:

Master Mind Online 🎮

A simple online implementation of the classic Mastermind game (CLI).
This project uses the Mastermind API to create games, submit guesses, and delete games.

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📖 About the Game

Mastermind is a logic game where:

• The server selects a secret 4-digit code.
• You try to guess the code by submitting guesses.
• After each guess, the server returns two values:
  • ⚫️ Black → number of digits correct in the correct position
  • ⚪️ White → number of digits correct but in the wrong position

The game continues until you guess the entire code correctly.

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▶️ Running the Program

Run the project using Swift:

swift run

## 📝 Available commands:
  game              — Start a new game
  guess <1234>      — Make a guess in the active game
  delete <game_id>  — Delete a game
  help              — Show help message
  exit              — Exit the game

> - Each guess must be **exactly 4 digits**, with values between 1..6.  
> - Run the program with `--debug` to see the secret code in STDERR.