Functional Storage Legacy

Backport of Functional Storage features for Minecraft 1.12.2 (Forge).

Implemented Features

Compared with traditional 1.12.2 drawer mods, this project is closer to modern Functional Storage interaction patterns:

• Storage upgrades use a multiplicative scaling model
• Drawer contents, upgrades, and config are preserved in item NBT after block break
• Drawer items can expose IItemHandler capability for cross-mod interaction
• Collector upgrade supports both dropped-item and fluid collection behaviors

Main Content

Drawers and Storage Blocks

• Wooden drawers: 1x1, 1x2, 2x2
• Wood types: oak, spruce, birch, jungle, acacia, dark_oak
• Compacting Drawer: 3-tier compacting storage
• Simple Compacting Drawer: 2-tier compacting storage
• Fluid Drawer: 1 / 2 / 4-slot fluid variants
• Ender Drawer: frequency-based shared single-slot storage
• Storage Controller
• Controller Extension
• Armory Cabinet

Upgrade System

Storage Upgrades

• Iron Downgrade
• Copper Upgrade
• Gold Upgrade
• Diamond Upgrade
• Netherite Upgrade
• Creative Vending Upgrade

Notes:

• Storage upgrades are calculated multiplicatively instead of single-tier overwrite
• Default multipliers: copper x8, gold x16, diamond x24, netherite x32
• Upgrades affect normal storage, fluid capacity, and controller range calculations
• If removing an upgrade causes stored amount to exceed new capacity, that slot is locked and cannot be extracted directly
• If holding a higher-level storage upgrade, it can still directly replace a lower-level one
• Upgrade conflict checks are centralized (for example, Void Upgrade cannot be installed more than once)

Functional Upgrades

• Void Upgrade
• Redstone Upgrade
• Pulling Upgrade
• Pushing Upgrade
• Collector Upgrade

Notes:

• Void Upgrade discards overflow of matching items/fluids
• Redstone Upgrade outputs signal based on fill ratio
• Pulling / Pushing interact with adjacent item/fluid capabilities
• Collector Upgrade collects dropped items from the block in front and collects fluids at a slower interval
• Directional functional upgrades store facing in upgrade item NBT; sneak-right-click to cycle direction

Storage Features

Normal Drawers

• Uses a high-capacity item handler; each slot can hold far more than vanilla 64
• Item matching preserves metadata and NBT
• Supports template retention when locked

Compacting Drawers

• Automatically detects compacting/decompacting recipes
• Supports initialization from any valid tier
• Automatically converts total amount across multi-level outputs

Fluid Drawers

• Each slot stores only one fluid type
• Supports direct interaction with buckets and fluid containers
• Locked slots retain fluid templates

Ender Drawers

• Uses frequency strings for shared storage
• Drawers with the same frequency share the same inventory
• Does not support storage upgrades

Armory Cabinet

• High-capacity storage for non-stackable equipment/tool items
• Default capacity: 4096 slots
• Independent from controller and drawer upgrade systems

Controller Network

Storage Controller

• Aggregates item and fluid capabilities from connected drawers
• Prioritizes already-matched/locked drawers on insertion
• Controller range is affected by storage upgrade calculations

Controller Extension

• Provides additional access points for a controller network
• Can connect to adjacent controllers or already-connected extension blocks

Tools

Linking Tool

• Right-click controller: record target controller
• Right-click drawer: add or remove connection
• Supports single mode and area batch mode
• Supports add/remove mode switching
• Also used to copy and set Ender Drawer frequency

Configuration Tool

• Sneak-right-click air: cycle modes
• Right-click drawer or controller: apply current mode
• Supported modes include:
  • Lock
  • Number Display Toggle
  • Item Render Toggle
  • Upgrade Icon Toggle
  • Indicator Bar Mode

Item Form Capabilities and Tooltip

• When a drawer block is broken or middle-click picked, contents and upgrades are written into item TileData
• Normal drawer items and compacting drawer items expose IItemHandler capability
• Other mods can interact with drawer items as containers
• Tooltip displays stored content and amounts