Returns the fuel efficiency for a given assembly type ID from the on-chain Fuel Efficiency Config.
Uses cached Fuel Efficiency Config data after the first fetch.
Parameters
typeId: number
In-game type ID (e.g. from rawData.type_id)
Returns Promise<number>
Fuel efficiency (e.g. fuel_efficiency), or 0 if not found or not yet loaded
Returns the fuel efficiency for a given assembly type ID from the on-chain Fuel Efficiency Config. Uses cached Fuel Efficiency Config data after the first fetch.