A programmable-block script that runs multiple airlocks by name, captures air into a per-airlock “process tank”, restores it on re-entry, blinks lights during the cycle, and auto-closes non-airlock doors after a delay. Verbose on-screen debug shows live state (mode/step/O₂).

You do not need to create a separate conveyor network; everything works on the same network.

• If you wish to make modifications to parameters, or the scritp itself you will need to pull the MDK Nuget packages https://github.com/malforge/mdk2/wiki
• I use Rider for writing anything in C# https://github.com/malforge/mdk2/wiki/Getting-Started-using-Jetbrains-Rider
• Make sure you modify the ini ifiles here accordingly the version I deploy needs to be minified as it contains far too many characters. (Look in the ini files and make sure you set them up accordingly)
• Shoutout for doing the build work and writing the libs goes to Malware, thanks!

• Multiple, named airlocks on one grid (A1, B1, …) via simple block name tags
• Lossless cycles using per-airlock O₂ ProcessTank(s)
• Exit flow opens Inner first (while pressurized) so you can step in
• Enter flow pressurizes before opening Inner
• Lights blink red during cycle; original color/blink restored afterward
• Auto-close for all non-airlock doors, with per-door overrides
• Debug Echo shows mode/step, O₂ %, and isolation checks

The script only controls blocks on the same construct (grid) as the PB.

Pick an ID per airlock (A1, B1, …) and add tags in square brackets to block names.

• Doors (base side vs space side):
  [A1:Inner], [A1:Outer]
• Vent(s) in the chamber:
  [A1:Vent]
• Process tank(s) (OXYGEN tank only; can be shared across IDs): Must be built and toggled off (it should remain off the script will handle all f rom there, never turn it off and never set it to stockpile on your own)
  [A1:ProcessTank]
• Optional lights that blink during cycle:
  [A1:Light]
• Optional inputs (discovered for future use):
  [A1:InnerButton], [A1:OuterButton], [A1:InnerSensor], [A1:OuterSensor]

• Base O₂ tanks (optional; otherwise auto-detected):
  [BaseTank]
• O₂/H₂ generators:
  [O2H2]

• Enable default auto-close (10s):
  [AutoClose]
• Custom delay:
  [AutoClose:30] ← seconds
• Opt-out / keep open:
  [NoAutoClose] or [KeepOpen]

Where you put brackets in the custom name does not matter

[A1:Inner] Airlock A1 – Inner Door

[A1:Outer] Airlock A1 – Outer Door

[A1:Vent] Airlock A1 – Vent

[A1:Light] Airlock A1 – Indicator

OxgenTankP[A1:ProcessTank] or [B1:ProcessTank]OxgenTankP A process tank can be shared across airlocks, keep in mind it need to be able to take in air so make sure you have enough Volume to capture the Oxygen. Only 1 tank can be used per airlock

[BaseTank] Main O₂ Tank #1

[O2H2] Base O₂/H₂ Generator #1

[AutoClose:20] Refinery Room Door

[KeepOpen] Hangar Main Door

• rescan — rediscover blocks
• list — detailed listing
• (no argument) — summary
• test <ID> — seal an airlock (close both doors; vents Depressurize = Off)
• enter <ID> — run enter cycle for airlock ID
• exit <ID> — run exit cycle for airlock ID

Tip: bind Button Panels to enter A1 / exit A1.

1. Open Inner (pressurized) → wait → Close Inner.
2. Seal both doors.
3. Isolate gas on the base:
   • O₂/H₂ generators Off
   • Base O₂ tanks Off
   • Selected ProcessTank: Enabled = On, Stockpile = On (captures air)
4. Depressurize chamber (Depressurize = On) until near-vacuum or timeout.
5. Open Outer → wait → Close Outer.
6. Pressurize using the ProcessTank (Stockpile = Off, supply) with vents Depressurize = Off.
7. Restore: lights back, ProcessTank Off, base tanks/gens On.

1. Seal → Isolate gas (as above).
2. Pressurize chamber from ProcessTank (supply; base tanks/gens off).
3. Open Inner → wait → Close Inner.
4. Restore (lights, enable base tanks/gens, process tank off).

Lights tagged [ID:Light] blink red during the cycle; their original color/blink/enabled state is restored at the end.

• All doors not tagged as [ID:Inner] / [ID:Outer] are tracked.
• Default close delay is 10s (configurable).
• Per-door overrides via [AutoClose:<seconds>]; disable with [NoAutoClose] / [KeepOpen].

Depressurizing pushes O₂ into the entire connected conveyor network.

• If a docked ship has enabled O₂ tanks, it will soak up air.
• Recommended practice: on each ship, use a Timer/Event Controller tied to connector state:
  • When connected: set ship O₂ tanks Stockpile = On (or Enabled = Off)
  • When disconnected: set Stockpile = Off (or re-enable)

Note: If your ProcessTank is unexpectedly filling with air, you likely have a docked ship whose oxygen tanks are enabled or not set to Stockpile. Ensure connected ships isolate their tanks as above.

• PRESS_OK (default 0.90) — min O₂ % to open Inner
• VAC_OK (default 0.02) — target vacuum O₂ level
• MIN_O2_DELTA (default 0.01) — require ≥1% O₂ rise to accept pressurize
• MIN_DEPRESS_TICKS / MIN_PRESS_TICKS — minimum time in depress/press before doors open
• AUTO_CLOSE_DEFAULT_SECONDS — default non-airlock door auto-close delay
• LOCK_MANUAL — if true, script disables door “F key” when idle to discourage manual opening

• Outer door never opens on Exit
  Vent must be Depressurize = On; ProcessTank must be Enabled + Stockpile.
  If room O₂ isn’t dropping and tank fill isn’t rising, the conveyor path to the Oxygen ProcessTank is broken.

• Room never reaches PRESS_OK on Enter
  ProcessTank must be Enabled and Stockpile = Off (supply).
  Base O₂ tanks and O₂/H₂ generators remain Off until restore.
  Vent(s) must show Can Pressurize = Yes (no leaks, correct orientation).

• ProcessTank fills “by itself” during depressurize
  This usually means a docked ship is connected and its tanks are enabled or not stockpiling.
  Isolate ship tanks when connected (see “Docked Ships & Conveyors”).

• Normalize a chamber quickly
  Run test <ID> to close both doors and set vents Depressurize = Off.

• Runs at Update10 (~6 Hz) for smooth timing & O₂ checks.
• rescan is a one-time pass over blocks; normal ticks are lightweight.
• Auto-close iterates only the tracked non-airlock doors.

• Doors tagged: [ID:Inner], [ID:Outer]
• Vent(s) tagged: [ID:Vent] and looking into the chamber
• Oxygen ProcessTank tagged: [ID:ProcessTank] (O₂ tank)
• Base O₂ tanks tagged [BaseTank] (optional) or rely on auto-detect
• O₂/H₂ generators tagged [O2H2]
• (Optional) [ID:Light] for indicators
• (Optional) Auto-close tags on other doors
• (Docked ships) Ship timer sets O₂ tanks Stockpile On when connected

• Inside base: enter A1
• Exterior side: exit A1
• Maintenance: rescan, list, test A1