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Instance Pack Manager

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Instance Pack Manager

By BlackHearts

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Automatically loads and enables every data pack and resource pack in the instance's datapacks/ and resourcepacks/ folders, in every world.

Mod Loaders
Minecraft
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About

Description

Description

Instance Pack Manager loads the packs that are already in your instance and turns them on. You don't have to copy data packs into each world, and you don't have to enable resource packs by hand.

It was made for the Tales of Fantasia modpack but works in any NeoForge 1.21.1 instance.

What it does

  • Data packs in datapacks/ (at the instance root) are enabled in every world: new ones and existing saves.
  • Resource packs in resourcepacks/ are enabled from the main menu onward.
  • Both .zip files and unzipped pack folders are supported.

Why it works well with the CurseForge app

The CurseForge app installs Data Packs projects into datapacks/ and Resource Packs projects into resourcepacks/. This mod reads exactly those folders.

A modpack can therefore list its packs in its manifest, like any other project, instead of shipping the files itself. Every pack still comes from its author's own page.

Packs are sorted by content, not by folder

A pack is loaded as a resource pack if it contains assets/, and as a data pack if it contains data/. A pack with both is loaded as both, whichever folder it sits in.

This matters because the app places a mixed pack wherever its category says. Without this rule, half of the pack would never load.

Choose what each pack does (2.0.0)

Open Mods → Instance Pack Manager → Config. The screen has two tabs, Resource Packs and Data Packs. Each pack has an Enabled / Disabled button and a lock:

Unlocked Locked
Enabled On by default: turned on once, players can remove it Forced: always on, cannot be unticked
Disabled Off by default: listed, players can add it Blocked: never loaded, hidden from the pack screen
  • Settings are saved in config/tofneo_packs.json. Ship that file with your modpack.
  • A pack that is not in the file is forced, exactly like 1.0.0.
  • Resource pack changes apply as soon as you click Done. Data pack changes apply the next time a world loads.
  • "On by default" and "Off by default" are applied once per installation, then the player's choice is kept. The record is in local/tofneo_packs/seen.txt: do not ship it. If you change a pack's mode in an update, the new default is applied once.

Things to know

  • Load order is kept: packs already listed in options.txt stay in that order, and new packs are added on top.
  • Packs show the ToF Neo tag in the pack list.
  • The log shows what was loaded, for example: [Instance Pack Manager] data packs: 2 forced, 0 on by default, 0 off by default, 0 blocked, 0 without a data/ folder
  • No mixins: it only uses NeoForge's pack finder event and Minecraft's own folder scanner.
  • The mod ships no packs of its own.