Changelog

Version: 1.0.4
Date: 2026-08-30
  Features:
    - Added per-player setting "Research increases launch pollution" (default
      off). When enabled, the Cleaner Rocket Exhaust research is inverted.

Version: 1.0.3
Date: 2026-08-30
  Changes:
    - Ported to Factorio Version 2.1 experimental

Version: 1.0.2
Date: 2026-06-13
  Changes:
    - Space Exploration research: the Cleaner Rocket Exhaust techs now require
      se-rocket-science-pack instead of the vanilla space-science-pack as their
      top science pack. Applied in both technology.lua (initial definition) and
      data-final-fixes.lua (the authoritative list that overrides SE's cascade
      injection). Non-SE (vanilla) games are unchanged and still use
      space-science-pack.

Version: 1.0.1
Date: 2026-05-29
  Changes:
    - Added new "Fuel (distance + weight)" cargo rocket mode for Space Exploration.
      Pollution now scales with the actual fuel consumed by the launch, which is
      proportional to both cargo weight and travel distance (delta-v). Mirrors SE's
      internal fuel cost math exactly (Zone.get_launch_delta_v + get_travel_delta_v,
      Launchpad.fuel_per_delta_v = 8).
    - Added "Fuel Mode Reference Cost" setting (default 4400) to normalise fuel-mode
      pollution. At the reference value the pollution equals the base setting exactly;
      longer or heavier launches produce proportionally more pollution.
    - Refactored cargo slot counting into a shared helper used by both Dynamic and
      Fuel modes.
    - If zone data is unavailable at launch time (SE remote call fails), Fuel mode
      falls back gracefully to Dynamic behaviour.

Version: 1.0.0
Date: 2026-05-08
  Features:
    - Initial release.
    - Standard rocket launch emits configurable pollution burst at the silo.
    - SE cargo rocket launch emits pollution with Default (fixed) or Dynamic
      (cargo-fullness-scaled) modes.
    - Cleaner Rocket Exhaust technology: 10 levels, each reducing pollution by 10%.