Changelog

Version: 0.8.2
Date: 2026-11-02
  Features:
    - Added native flat status fields in entity tooltip displaying "Days of disuse" and "Last fluid handled" directly when hovering over 15x15 and 5x5 storage tanks.
    - Added runtime-global setting ("Enable lighting and electric pole") and a dedicated toggle button in the tank GUI to control the integrated electric pole and corner perimeter lamps (disabled by default to prevent unintentional factory power grid connections).
    - Integrated high-definition 3D Cycles rendered central dome nozzle with isometric 2:1 alignment and dynamic color tinting based on Factorio 2.0 Quality tiers (Uncommon, Rare, Epic, Legendary).
    - Added subtle interior illumination behind the inspection sight glass that automatically powers on when the tank is connected to an active electrical grid.
  Optimizations:
    - Implemented dynamic on_tick deregistration (unhooking event to nil) whenever all storage tanks on the map reach steady state or resting idle, achieving true 0.000 ms script consumption in time usage monitoring.
    - Implemented per-tick time-slicing architecture across 60 buckets for active storage tanks and pump connection checks, completely eliminating tick spikes in megabases with 1,000+ tanks.
    - Added ultra-fast idle fast-path for stable tanks (< 1 L fluid delta): skips C++ fluidbox queries and redraws purely in Lua memory, maintaining resting cost at ~0.05 ms for massive tank farms.
    - Added 1 L floating-point deadband (epsilon threshold) to suppress continuous micro-oscillation churn from creative infinity pipes and fluctuating pipe networks.
    - Cached permanent tank fluid capacities in persistent storage, eliminating thousands of redundant get_fluid_capacity calls per second.
  Graphics:
    - Integrated updated 3D Cycles renders featuring a 10% graduated ruler with embossed calibration markings (0% to 100%) and domed beveling on the sight glass, eliminating vertical level gaps.
    - Calibrated rising bubbles and surface burst effects: bubbles remain strictly confined to the fluid column and burst cleanly at the liquid surface without vertical distortion.
    - Refactored dome roof textures with smooth industrial metal finish and decoupled wear overlays (w1 to w4).
  Bugfixes:
    - Subordinated wall pump motor, rotor, bubbles, pulsing hose, and roof stream animations strictly to active incoming fluid (inflow); animations cleanly shut down upon reaching 100% capacity, when pipes are disconnected, or when fluid is idle.
    - Fixed fill animation not starting on newly placed empty tanks until another tank was built or mined elsewhere on the map, caused by missing on_tick registration during empty tank placement.
    - Removed redundant multiline maintenance descriptions from the valve window, preventing vertical layout overflow and clipping of the Operation Manual button on screens with UI scaling.
    - Fixed pre-existing storage tanks showing outdated or detached relative GUIs on save load by bumping RENDER_VERSION to 66, adding on-open entity attach fallback, and purging orphan GUI frames.
    - Added active valve check to idle fast-path, ensuring armed valves (auto-99, continuous, circuit) on resting tanks drain properly without requiring level changes.
    - Applied strict boolean coercion (not not) in control.lua to protect against rare engine nil evaluation errors.
  Gui:
    - Renamed tank relative interface to "Válvula y Luces" ("Valve and Lights") to accurately reflect relief valve configuration and perimeter lighting controls.
  Locale:
    - Added complete multilingual translations (English, Spanish, Russian, Simplified Chinese) for tooltip status fields, lighting toggle setting, and GUI button tooltips.

Version: 0.8.1
Date: 2026-10-28
  Bugfixes:
    - Fixed crash during on_init and on_configuration_changed when playing Factorio Base without the Space Age expansion ("Unknown entity name: big-storage-tank-attractor").
    - Added defensive prototype existence checks before querying optional or DLC-specific auxiliary entities in find_entities_filtered.

Version: 0.8.0
Date: 2026-10-28
  Features:
    - Added modular emergency relief valve (vent pipe) with high-definition 3D Cycles renders on both 15x15 and 5x5 tanks.
    - Added 4 selectable relief modes: Disabled (red handle closed, default), Auto-99% (overpressure protection), Circuit Network (signal P > 0), and Continuous Purge.
    - Added hydraulic ram poppet animation (8 frames) with rhythmic hammer sound and crescendo pulse cycle.
    - Dynamic visual wear system featuring 3 independent progressive layers: Operational usage wear (250x capacity scale), Disuse/neglect wear (90-day scale with 30-day grace), and Combat damage from Biters (<85%, <55%, <25% health).
    - Added active maintenance mechanics: purging water washes away rust and moss from disuse, purging hot steam (>= 150°C) cleans industrial soot, while purging dirty/corrosive fluids (crude oil, heavy oil, acids) soils the tank exterior (x20 staining rate).
    - Added manual maintenance: direct left-click with a water barrel (or GUI button) cleans disuse immediately.
    - Integrated relative GUI docked below the storage tank with minimize/expand toggle, native status indicator lights (working/idle/closed), pump flow statistics, and a dedicated modal Operation & Maintenance Manual.
    - Ultra-realistic fluid venting particle effects: distinct behavior for pure gases (expanding billowing plumes) vs liquids (cascading waterfall, high-arched geysers, splash bursts, and expanding ground puddles).
    - Massive catastrophic BLEVE explosions for pressurized gas tanks: nuclear shockwaves, scorchmark craters (huge-scorchmark / big-scorchmark), scorched blackened ground (nuclear-ground), lethal realistic damage against biters and humans (up to 8,000 HP), and a calibrated 50% max HP adjacent blast enabling rhythmic 0.5s chain reactions with missile launch acoustics.
    - Integrated Factorio 2.0 Quality System with canonical capacity ceilings: 100,000 L (5x5) and 1,000,000 L (15x15) are strictly maintained across all quality tiers to preserve factory balance.
    - Quality upgrades unlock unique planetary perks: Uncommon+ incorporates an integrated lightning attractor for Fulgora, Legendary activates internal electric self-heating preventing freezing on Aquilo, and drainage/purge throughput scales dynamically from 1,200 L/s up to 2,400 L/s (2.0x).
    - Added full Shift+Click settings copy-paste (and blueprint persistence) for valve operating modes between tanks.
    - Space Age & Space Exploration (SE) full support: added `se_allow_in_space = true` on all tanks, poles, lamps, and circuit components for orbital platforms, spaceships, and asteroids; suppressed ground cratering and scorchmark terrain replacement on space platforms and SE space surfaces.
  Bugfixes:
    - Integrated electric pole on platform corner now features zero electric supply area (supply_area_distance = 0), preventing unintended powering of external fluid pumps and adjacent machinery.
    - Preserved full copper wire connectability (maximum_wire_distance = 18) for integrated electric pole, dynamically powering perimeter corner lights via isolated sub-poles that immediately turn off when power is lost or disconnected.
    - Fixed perimeter corner lights staying on at night without an electric cable connected to the integrated pole: isolated sub-poles from automatic external wiring, accurately discriminated external copper connections, and dynamically despawned perimeter lamps when power cable is disconnected.
    - Fixed mod loading crash with Factorio 2.0 particle prototypes ("ended_in_water_trigger_effect must be a dictionary").
    - Fixed crash when washing tanks with water barrel caused by vanilla item name ("empty-barrel" changed to "barrel").
    - Decoupled fluid pumping from inactivity counter, ensuring normal fluid usage does not prematurely wipe out accumulated disuse wear.
    - Fixed unknown localization keys on hot-reload using native fallback operators.
    - Fixed invalid entity access crash when an adjacent storage tank was destroyed by blast damage.
    - Fixed Lua scoping error in process_delayed_explosions during tick processing.
    - Fixed collateral blast damage incorrectly applying biter scratch marks instead of industrial usage wear/soot.
  Graphics:
    - Corrected sight glass rendering layer hierarchy (z-index): positioned falling stream and impact splash on 'object-under' above the receding fluid surface ('lower-object-overlay'), ensuring the waterfall cascade flows on top of the liquid rather than beneath it.
    - Calibrated volumetric fluid stream and impact splash crown to land in the geometric middle of the tank (50% mark / mid-plane) at low volumes, dynamically rising with the surface when filled above half capacity.
    - Calibrated optical opacity for fluid surfaces (LIQUID_SURFACE_ALPHA): solid 100% opaque surfaces for dense hydrocarbons (crude oil, heavy oil) and molten materials (lava, molten iron, molten copper), while preserving realistic crystal translucency for water, acids, and chemical solutions.
    - Designed physical fluid purge viscosity architecture: defined droplet evaporation and persistence curves by fluid viscosity (from light water spray evaporating in 2.5s to heavy persistent crude oil adhering for 15s).
    - Added dedicated high-definition 256x256 technology research icons (with 4-level mipmaps, 480x256) for both 1M and 100k tanks, displaying the concrete foundation, wall pump, extensible hose, red relief valve, and fluid sight glass.
  Balancing & UX:
    - Established valve default state as Closed/Disabled to guarantee zero unintended fluid loss on newly built tanks.
    - Universal save-game safety: pre-existing tanks in existing saves load at Day 0 (100% clean), completely protecting players from surprise wear.

Version: 0.7.4
Date: 2026-10-25
  Graphics:
    - Updated official mod portal thumbnail with high-resolution 3D render, readable typography, and enhanced industrial factory setting.

Version: 0.7.3
Date: 2026-10-25
  Features:
    - Added map view / remote view chart fluid indicators (with toggle in mod settings): displays the fluid icon and net contents above tanks at any map zoom level.
  Bugfixes:
    - Fixed crash when running in vanilla base game without the Space Age expansion ("Freezing is disabled and can not be used").
    - Thermal heating energy (300 kW for 5x5 tank, 1000 kW for 15x15 tank) is now applied dynamically during data updates only when Space Age or freezing mechanics are active.

Version: 0.7.2
Date: 2026-10-25
  Compatibility & Engine:
    - Updated engine compatibility for Factorio 2.1 (`factorio_version = "2.1"`, `"base >= 2.1.0"`), supporting the official public release.
    - Added automated Factorio JSON save-game migrations for legacy and obsolete storage tank mods.
    - Seamlessly upgrades existing maps, inventories, train wagons, and blueprints to high-definition animated tanks without losing fluid contents or circuit connections.
    - Added drop-in replacement support for `Bigger Storage Tank` (Velaanix, 5x5).
    - Added drop-in replacement support for `Super Tanks` (Styxy / Sil3ntSt0rm, 5x5).
    - Added drop-in replacement support for `BigStorageTank` (DellAquila original, 15x15).
    - Added legacy rescue migrations for 5x5 variants from `Underground Storage Tank`, `Zithorian's Extra Storage Tanks`, and `Angel's JAX-35 Pressure Tanks`.
    - Added clean dependency conflicts in `info.json` for replaced 1:1 mods.

Version: 0.7.1
Date: 2026-10-25
  Features:
    - Added thermal heating support for planet Aquilo (Space Age 2.0): 300kW heating energy for 5x5 tank, 1000kW (1MW) for 15x15 tank.
    - Added frosty frozen pipe connection covers (pipe_covers_frozen) when operating on freezing planets without heat.
    - Verified full cross-planetary compatibility with Space Age extreme fluids: Vulcanus lava and molten metals (iron/copper), high temperatures, and Aquilo sub-zero freezing mechanics.
    - Added direct percentage level signal output (signal-P = 0..100%) to circuit networks on all wire connection points.
    - Precision calibration of dynamic inspection window fluid level: visual meniscus now perfectly matches the stamped 0% - 100% gauge stencil marks on both tank tiers.
  Localizations:
    - Added complete Russian (Русский - ru) localization.
    - Added complete Simplified Chinese (简体中文 - zh-CN) localization.

Version: 0.7.0
Date: 2026-10-25
  Features:
    - Added Tier 1: 5x5 Large Storage Tank (100,000 fluid capacity, 8 pipe connections).
    - Full dynamic visual system on the 5x5 tank: animated pump, extensible roof hose, and liquid sight glass.
    - 4 corner circuit network connections with visual hints on the 5x5 tank.
    - Added startup setting `large-storage-tank-fluid-size` to customize 5x5 tank capacity.
  Balancing:
    - Large Storage Tank recipe: 4 storage tanks + 1 pump + 10 steel plates + 50 concrete (8s craft time).
    - Large Storage Tank tech: unlocked with Fluid Handling + Concrete (75 automation & logistic packs).
    - One Million Storage Tank recipe updated: 10 large storage tanks + 1 pump + 100 steel plates + 100 refined concrete.
    - One Million Storage Tank tech updated: requires Large Storage Tank tech + chemical science pack.
  Compatibility:
    - Universal Factorio 2.0+ compatibility (`base >= 2.0`).
    - 100% safe drop-in replacement for `large-storage-tank` (Valerian): existing 5x5 tanks, fluids, settings, and blueprints are kept intact.
    - Added full compatibility with Bob's mods (Bob's Logistics, Metals, Tech): dynamically scales fluid capacity with `bobmods-logistics-storagetankbase`, integrates with Bob's crafting subgroups, and protects technology prerequisites.
  Graphics:
    - Integrated high-definition in-game Before & After comparison artwork.

Version: 0.6.4
Date: 2026-10-24
  Info:
    - Renamed official mod title to "One Million Storage Tank".
  Graphics:
    - Updated official mod thumbnail with high-definition 1,000,000 showcase artwork.

Version: 0.6.2
Date: 2026-10-24
  Graphics:
    - Upgraded mod portal and in-game thumbnail to high-definition 288x288 HiDPI resolution.

Version: 0.6.1
Date: 2026-10-24
  Features:
    - High-definition 15x15 storage tank with 1,000,000 fluid capacity and 32 pipe connections.
    - Dynamic sight glass with real-time liquid level and flow bubbles matching fluid color.
    - Animated industrial pump and connection hose.
    - 4 circuit network connection points at corners with visual indicators.
    - Added Spanish and English localizations.
  Balancing:
    - Stack size adjusted to 1 (weighs 1,000,000 kg, exactly one rocket payload).
    - Recipe rebalanced: 40 tanks, 11 pumps, 100 refined concrete, 100 steel plates (120s craft time).
    - Technology requires chemical science pack, concrete, and fluid handling (500 packs).
  Compatibility:
    - 100% safe drop-in replacement for BigStorageTank-Fork: existing tanks, fluids, and wires are kept.