Changelog

Version: 0.3.5
Date: 2025-12-09
  Bugfixes:
    - Fixed players entering god mode when opening Space Elevator GUI
        - Opening the elevator GUI would give players infinite crafting ability
        - Caused by a bug in entity-gui-lib's player inventory display
        - Updated entity-gui-lib dependency to 0.1.9 which fixes this issue

Version: 0.3.4
Date: 2025-11-30
  Changes:
    - Space Elevator Dock inventory is now view-only
        - Prevents pulling items from dock directly to player inventory
        - Items must be transferred through the elevator system as intended

Version: 0.3.3
Date: 2025-11-30
  Bugfixes:
    - Fixed quality items not transferring correctly through the elevator
        - Quality items were inserted as normal quality at destination
        - Source quality items were not removed (quality parameter was missing)
        - Now properly preserves quality on both insert and remove operations
  Changes:
    - Hid player inventory when viewing Space Elevator Dock GUI
        - Prevents direct player-to-dock item transfers that bypass the elevator
        - Items must now go through the proper elevator transfer system

Version: 0.3.2
Date: 2025-11-30
  Bugfixes:
    - Fixed construction progress freezing after clicking "Begin Construction"
        - Materials were consumed but construction never progressed
        - Caused by duplicate on_nth_tick(10) handlers - second handler replaced the first
        - Construction tick handler is now combined with player transit handler
  Changes:
    - Rocket parts required now defaults to 0 (was 1)
        - Eliminates confusing "Item ingredient shortage" message from base game
        - Makes the elevator a true elevator - cargo goes up without needing rocket parts
        - Setting can still be increased via mod settings for added challenge
  Locale:
    - Added Russian localisation (thanks Overmind_x!)

Version: 0.3.1
Date: 2025-11-29
  Bugfixes:
    - Fixed "Entity must be minable when next_upgrade is set" error caused by mod compatibility (thanks Naarkerotics!)
        - Other mods adding upgrade paths to base storage-tank/steel-chest would break elevator
        - Companion entities now explicitly clear inherited next_upgrade property

Version: 0.3.0
Date: 2025-11-28
  Features:
    - Improved Status tab with real-time operational status display
        - Shows actual elevator state: Uploading, Downloading, Idle, Disconnected, Low Power, etc.
        - Color-coded status indicator with icon (green/yellow/red)
        - Status updates automatically every ~0.3 seconds
    - Automatic fluid transfer mode
        - New Off/Upload/Download buttons in Fluid Transfer section
        - Works identically to item auto-transfer
        - Transfers run every 0.5 seconds when enabled
    - New mod setting: Auto Fluid Transfer Rate
        - Separate from manual fluid transfer amount
        - Configurable from 100 to 10,000 fluid per cycle
        - Default: 1,000 fluid per cycle
  Changes:
    - Fluid upload/download buttons now enable/disable automatically based on tank contents
    - Item and fluid auto-transfer button styles now update in real-time when clicked
    - Status tab now shows fluid transfer states (Uploading/Downloading fluids)
  Technical:
    - Added get_operational_status() function to elevator-controller for unified status reporting
    - Auto-transfer button styles refresh in GUI update loop
    - Cleanup of auto-transfer entries when elevator is removed

Version: 0.2.9
Date: 2025-11-27
  Bugfixes:
    - Second fix space age tag for mod portal

Version: 0.2.8
Date: 2025-11-27
  Bugfixes:
    - Fix space age tag for mod portal

Version: 0.2.7
Date: 2025-11-27
  Features:
    - Added audio effects for transfer beams
        - Looping beam sound plays during active item/fluid transfers
        - Shutdown sound plays when transfers stop for smooth audio fade-out
    - Sound volume and timing tuned to prevent clicking artifacts

Version: 0.2.6
Date: 2025-11-27
  Changes:
    - Transfer tab now uses two-column layout with Cargo and Fluid sections side by side

Version: 0.2.5
Date: 2025-11-27
  Features:
    - WIP custom sprites for upload/download transfer beams
  Bugfixes:
    - Fixed companion chest and fluid tank not being removed when elevator is mined/destroyed

Version: 0.2.4
Date: 2025-11-26
  Features:
    - Full inserter support for elevator inventory
        - Companion chest now spawns 6 tiles south of elevator (visible)
        - Inserters can deposit AND extract items directly
        - No sync delay - standard chest behavior
    - Works during construction (for materials) and when operational (for cargo)
  Changes:
    - Companion chest repositioned from hidden (overlapping) to visible (south of elevator)
    - Chest uses standard steel-chest graphics for visibility
  Migration:
    - Existing elevators automatically migrate chest to new position on load
    - Items are preserved during migration

Version: 0.2.3
Date: 2025-11-26
  Features:
    - Per-elevator transfer rate selector in Transfer tab
        - Choose between 10, 25, 50, 100, or 250 items per transfer cycle
        - Higher rates transfer more items but cost more energy
        - Beam width scales with transfer rate for visual feedback
    - Energy cost system for item transfers
        - Each item transferred costs 10kJ of energy
        - Energy cost displayed in Transfer tab GUI
        - Live display of available vs required energy
        - Transfers skip when energy is insufficient
  Technical:
    - Per-elevator transfer_rate storage with save migration
    - Energy drain happens after transfer based on actual items moved
    - GUI live refresh includes energy status updates

Version: 0.2.2
Date: 2025-11-26
  Features:
    - Transfer beam visual effects - colored beams appear when items/fluids are transferred
        - Surface side: beam shoots upward from elevator into the sky
        - Platform side: beam shoots up from below, visible in empty space under the platform
    - Different beam colors for transfer types:
        - Item upload: Blue
        - Item download: Orange
        - Fluid upload: Cyan/teal
        - Fluid download: Dark orange
    - Dynamic platform edge detection for accurate beam positioning
    - Beam width scales with transfer amount (wider beams for more items)
  Technical:
    - New visual-effects.lua script module for rendering effects
    - Platform bottom edge caching (5-second cache) for performance
    - Beam rendering uses LuaRendering.draw_line with dual-layer effect (outer + inner core)
    - Persistent beam management - beams stay visible during continuous transfers

Version: 0.2.1
Date: 2025-11-26
  Features:
    - Debug button to skip construction (for testing) - appears in Construction tab
    - Fluid transfer UI in Transfer tab with status display and manual transfer buttons
    - Custom GUI for Space Elevator Dock showing all 48 inventory slots
  Changes:
    - Elevator fluid tank now spawns 6 tiles north of elevator (visible, accessible for pipes)
    - Materials tab now shows interactive inventory when elevator is operational
    - Improved fluid status messages to distinguish between "no tank" and "empty tank"
  Bugfixes:
    - Fixed Materials tab not showing inventory after construction complete
    - Fixed Factorio 2.0 inventory iteration (get_contents returns array not dictionary)
    - Fixed dock inventory display only showing 10 slots instead of 48
    - Fixed fluid transfer buttons not appearing in Transfer tab
    - Fixed misleading "place Dock Fluid Tank" message when tank was empty
    - Fixed Transfer tab resetting to Status tab when clicking transfer buttons
    - Fixed slot counting showing item types instead of actual slots (7 stacks now shows 7, not 1)
    - Fixed "Only callable on tabbed-pane" GUI crash when opening elevator
    - Added live updates to Transfer tab inventory/fluid counts without resetting active tab

Version: 0.2.0
Date: 2025-11-26
  Features:
    - Platform Docking Station - New entity for space platforms to connect with planetary elevators
    - Bidirectional item transfer between surface and platform (Upload/Download)
    - Automatic transfer modes (continuous upload or download)
    - Fluid transfer support via companion fluid tanks (no barreling required)
    - Player transport between surface and platform (3-second timed travel)
    - New GUI tabs for operational elevators:
        - Docking tab for platform selection and connection management
        - Transfer tab for manual and automatic item transfers
        - Travel tab for player teleportation between surface and platform
    - Auto-connect to platforms when only one is orbiting
    - Manual platform selection when multiple platforms are in orbit
    - Connection validation - automatically disconnects when platform leaves orbit
  New Items:
    - Space Elevator Dock - Place on platforms to enable elevator connection
    - Dock Fluid Tank - Fluid storage for platform-side transfers

Version: 0.1.0
Date: 2025-11-26
  Features:
    - Initial release of Space Elevator mod for Factorio 2.0 / Space Age
    - Custom space elevator entity based on rocket silo (only 1 rocket part per launch vs 100)
    - 10MW constant power consumption for balanced late-game gameplay
    - Technology unlock requires Cryogenic Science Pack (all 4 planets visited)
    - Multi-stage construction system with 5 stages:
        - Stage 1: Site Preparation (Stone, Concrete, Steel Plate)
        - Stage 2: Foundation Construction (Refined Concrete, Steel, Gears, Pipes)
        - Stage 3: Tower Assembly (Processing Units, Electric Engines, LDS, Tungsten, Superconductors, Bioflux)
        - Stage 4: Tether Deployment (Low Density Structures, Accumulators, Rocket Fuel)
        - Stage 5: Activation (Processing Units, Superconductors, Rocket Fuel)
    - Custom GUI powered by entity-gui-lib with three tabs:
        - Construction tab with stage progress and build timer
        - Materials tab showing required vs available items with live updates
        - Info tab with elevator status and launch statistics
    - Interactive inventory display with click-to-transfer functionality
    - Player inventory panel alongside entity GUI
    - Companion chest system (invisible 48-slot chest) to bypass rocket cargo weight limits
    - Auto-registration for spawned/legacy elevators when GUI is opened
    - GUI auto-refresh every 20 ticks with automatic rebuild on stage changes