Functional Storage Legacy

Functional Storage Legacy is a high-version-style backport for Minecraft 1.12.2, inspired by modern Functional Storage and partially integrating ideas and content from MoreFunctionalStorage.

• Mod ID: functionalstoragelegacy
• Minecraft: 1.12.2
• Java: 8
• License: MIT

Overview

This mod provides a drawer-centric high-capacity item/fluid storage system, including multiple drawer blocks, compacting storage, fluid storage, Ender shared storage, controller networks, tool interactions, and upgrade automation.

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

Compatibility and Config

Compatibility

• Current explicit integration: The One Probe
• TOP can display drawer/fluid/controller contents and Locked, Void, Creative states

Config Options

Main configurable options include:

• Armory Cabinet capacity
• Base controller connection range
• Upgrade work tick interval
• Pull/push/collect item amount
• Pull/push/collect fluid amount
• Storage upgrade multipliers
• Fluid capacity and controller range conversion parameters
• TOP integration toggle
• Client-side drawer content render distance

Usage Suggestions

Basic workflow:

1. Place drawers and store items or fluids
2. Install storage or functional upgrades as needed
3. Place a Storage Controller
4. Use Linking Tool to connect drawers to the controller
5. Use Configuration Tool to adjust lock and display options
6. Place Controller Extension when more access points are needed

Credits

• Original Functional Storage author: Buuz135
• MoreFunctionalStorage author: Matyrobbrt
• Current 1.12.2 backport and maintenance: xinyihl