A Ruby implementation of the classic Asteroids arcade game using the Gosu game library.

1. Make sure you have Ruby installed (2.7 or later recommended)
2. Install dependencies:

   bundle install

3. (Optional) Install Custom Font:
   • Download the C&C Red Alert font from: https://www.dafont.com/c-c-red-alert-inet.font
   • Extract the ZIP and copy C&C Red Alert [INET].ttf to the fonts/ directory
   • The game will automatically use the custom font if available, otherwise falls back to system font

Run the game with:

ruby main.rb

Or use the font-checking launcher:

./start_with_font_check.sh

• Left Arrow: Rotate ship left
• Right Arrow: Rotate ship right
• Up Arrow: Thrust forward
• Spacebar: Shoot bullets
• Escape: Quit game

• Destroy all asteroids to advance to the next level
• Large asteroids split into 2 medium asteroids when destroyed
• Medium asteroids split into 1 small asteroid when destroyed
• Small asteroids are destroyed completely
• Objects wrap around screen edges
• Every 60 seconds, an alien ship appears and shoots at you
• Avoid collision with asteroids and alien bullets

• Classic vector-style graphics
• Physics-based movement with inertia
• Screen wrapping
• Progressive difficulty
• Score system
• Lives system
• Asteroid splitting mechanics
• Alien ships with AI targeting
• Custom retro font support (C&C Red Alert style)
• Authentic vector-style graphics