Ships carry fuel: a leg burns from the tank at departure (no credits),
dispatch needs the fuel on board (not-enough-fuel), a leg's fuel cost
is fuel burned x the tank's average price, and Auto top-up refills on
landing with what the credits cover. The save gains tank fields (save
version 2, migration fills every tank). Market ships arrive full; the
deal's ships come with a quarter tank to keep the balance targets.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Ships get a tank capacity and a burn rate instead of range and fuel
cost; locations get a fixed fuel price and a sellsFuel flag instead of
the launch cost multiplier. A leg burns burn rate x the economic
distance of (distance / origin factor), and reach is a full tank's
worth. Tanks are sized so every reach answer is unchanged.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
fireshaper