snail.py - ASCII art snail animation in the style of sl and asciiquarium

All ASCII art shamelessly copied from various ascii art websites.

Warning: Entirely vibe-coded, no human has ever seen it.


Usage:
    ./snail.py              # 3 snails, normal speed
    ./snail.py -n 10        # 10 snails
    ./snail.py -n 5 -s 0.5  # 5 snails, half speed

Runtime controls:
    q       Quit
    p       Pause/unpause
    +/=     Add a snail
    -       Remove a snail