Changelog

Version: 1.2.0
Date: 2026-08-02
  Changes:
    - First Factorio 2.1 version.
    - Migrated pipe fluid handling to the 2.1 API (LuaEntity.fluidbox removed); swaps use get/set_fluid_segment_fluid.
    - Replaced LuaEntity.neighbours with the fluidbox_neighbours property for underground pairing.
    - Moved hide_connection_info from the fluid_box onto each pipe connection.
    - Migrated the foundry casting recipe to the 2.1 categories format.

Version: 1.1.0
Date: 2026-08-02
  Changes:
    - Last Factorio 2.0 version.

Version: 1.0.0
Date: 2026-06-14
  Features:
    - Advanced pipe: a full-collision pipe with an independent above-ground AND underground
      connection per direction (8 toggles), click to open its GUI.
    - Advanced underground pipe: a walk-through (no collision) underground pipe with an above-ground
      marker; an underground connection per direction. The marker is a metal cap with arrows
      showing which directions are currently active (updates live as connections are toggled).
    - Circuit control: enable "Control with circuit network" in the GUI to drive the connections
      with two virtual signals (Above-ground / Underground), each a per-direction bitmask
      (N=1, E=2, S=4, W=8). The GUI shows live signal values and updates state in real time.
      Pipes behave as normal pipes (fluid shows on hover, pipette works) until circuit control is
      enabled; doing so adds a small green wire-anchor marker in the pipe's corner that you connect
      the red/green wire to (the pipe still shows its fluid on hover).
    - Advanced underground pump: a 1x1 powered pump whose input and output are both underground
      connections, boosting fluid between two underground pipe runs. Circuit-controllable (wire it
      to enable/disable).
    - Advanced underground heat pipe: carries heat underground between two ends that pair like an
      underground pipe (face them toward each other within range). The buried run heats the
      surface like a normal heat pipe but does NOT block building on the tiles between the ends.
      One per belt tier (like the linked belts): all vanilla belts except turbo, plus the More
      Belts tiers when present. Each tier's reach matches its belt tier's underground belt, and
      it uses that underground belt's graphics plus a heat-pipe overlay for the icon and entity.
    - Advanced linked belts: decoupled belts matched by a CHANNEL SIGNAL. Click a belt to set its
      role (input or output) and a channel signal; every input connects to the nearest output that
      has the same channel signal within its tier's range. Change a signal to re-route on the fly;
      blueprints and construction bots keep each belt's role + channel and reconnect automatically.
      Each tier's max range matches the underground reach of its own belt tier. Items take a transit
      delay based on distance and belt speed, pass through a per-lane strict first-in-first-out
      buffer (by belt position, lanes kept separate) holding 8 items per tile of distance, and keep
      their stack size (so stacked items from belt-stacking / ore-belt mods come out stacked).
    - One linked belt per belt tier: all vanilla belts except the turbo belt, plus every tier from
      the More Belts mod when it is installed.
    - Copy-paste settings (like an assembler's recipe): shift-right-click an Advanced pipe or
      underground pipe to copy its connection setup (which directions/channels are on, or whether
      it is circuit-controlled), then shift-left-click others to apply it -- works across the two
      pipe types (only shared channels transfer). Linked belts copy their role + channel signal
      the same way, then re-match automatically.
    - Frozen state (Space Age): the Advanced undergrounds, the underground pump, and the linked-belt
      tunnels now freeze on Aquilo when left unheated, just like their vanilla counterparts --
      provide heat (e.g. a heat pipe) to keep them running. A frozen tunnel holds its buffered
      items until it thaws. Heat pipes themselves do not freeze.