Energy Pack

alaindustrial:energy_pack

ItemsLVImplementeditemenergywearablechestplatepack

Summary

The Energy Pack is a wearable energy buffer: it goes in the chest slot and, while you wear it, tops up every powered item in your inventory once a second. Today that means the Battery Pouch — with the pack on your back the pouch no longer runs flat and locks itself mid-expedition.

The pack holds 20 000 EU/FE — ten times the pouch, and as much as a Battery Box. It charges in the Battery Box charge slot, and unlike the pouch it has no passive drain of its own: EU/FE only leave it to charge something.

It is a device, not armor: no durability (it never breaks and never wears), it cannot be enchanted, and it gives a token 2 armor points — less than a leather chestplate. A chest slot filled by the pack is a chest slot not filled by armor: that is the trade.

Mini-example: put a charged pack on, keep a half-empty pouch in your hotbar, and go caving for the afternoon. The pack quietly tops the pouch up every second, so the pouch's lock never snaps shut — no more running back to base just to unlock your storage.

Energy

Its own buffer, separate from the energy network. You charge it at a Battery Box; it hands energy to the items in your inventory — but only while it is worn.

Field	Value
Charge held	20 000 EU/FE (ten pouches; the same as a Battery Box)
Charging	Battery Box charge slot — full in about 31 seconds
Output to items	up to 640 EU/FE per second, shared across your inventory
Passive drain	none — it only spends charge to feed something
Order it feeds	hotbar → rest of the inventory → offhand → cursor → 2×2 crafting grid
Armor	2 points (less than leather)

How it behaves

Wearing it: the chest slot. The pack works only while worn — in a bag, a chest, or your hand it charges nothing.
Charging your items: once a second the pack hands out up to 640 EU/FE to anything in your inventory with a charge. It walks the slots in order — hotbar, then main inventory, then offhand, then the stack on your cursor and the 2×2 crafting grid — and each item takes what it has room for; the rest of the budget moves on to the next.
The cursor and the crafting grid: a pouch you are holding on the cursor, or one you dropped into the 2×2 crafting grid, is charged like any other — it is still on you, and charging should not stall while you are moving things around.
What it does not charge: other Energy Packs (two packs would just pass energy back and forth for nothing), items sitting inside containers — a pouch, a vanilla bundle, a shulker box — and the contents of an open chest or machine: those belong to the world, not to you.
In creative: charge is never spent — not by the pack, the pouch, or the drill. Exactly as vanilla tools take no durability damage in creative. The pack still charges your items, so a charged pack lasts forever in creative; a completely empty one still has nothing to hand out.
Idle: with nothing to charge — a full pouch, an empty pack, ordinary items — the pack spends nothing and its charge does not move at all.
Charging the pack: in the Battery Box charge slot. The same slot takes the pouch too — it accepts any item with a charge.
The charge bar: the bar under the icon shows the charge (yellow). The tooltip reads "Charge: X / 20 000 EU/FE", or a red "Empty" at zero.
On-screen readout (HUD): while the pack is worn, its icon, charge percentage and a bar (green → gold → red as it drains) sit in the top-left corner. On by default, toggled with the H key (rebindable under Controls → Ala Industrial) or in the mod's settings. Nothing shows when no pack is worn.
Drained look: at zero charge both the icon and the model on your back switch to a dead look — a red indicator light instead of the green one, and pale cells.
Durability and enchantments: none — the pack never breaks, never takes damage, and the anvil and enchanting table both ignore it.
On drop, death, or relog: the charge lives on the item and survives.

Block Properties

Not applicable (item).

Recipes

Crafted at a workbench from three batteries — a rechargeable cell made of tin, redstone and copper cable that holds 2,000 EU/FE and stacks by charge level — in a leather body, with an electronic circuit on top and a tin buckle below. The battery is a carrier rather than a single-use part: the charge held by the three batteries carries over into the finished pack (the recipe is the type,, so three full batteries hand the pack 6,000 EU/FE and it comes off the table already charged.

Progression

The next step after the Battery Pouch: the pouch carries your things, the pack keeps the pouch fed.
Available after the Battery Box — without one there is no way to charge the pack.
LV tier. Bigger versions (more buffer, faster output) and electric tools that draw on the pack are planned for later.