SN2ManufacturingTweaks

SN2ManufacturingTweaks

Craft faster and build cheaper in Subnautica 2. A UE4SS Lua mod with two simple sliders — crafting speed and resource cost — that cover the *entire* production pipeline: the Fabricator, processors, vehicles, placed devices, **and** base structure building (walls, rooms, corridors, moonpools, foundations). Configurable in-game via SN2ModSettings.

Every slider is "bigger number = easier" — set anything to `1×` for vanilla.

What it does

Faster Crafting: 1–10× Reduces crafting/fabrication time **and** base-building time-per-cell. 10× ≈ near-instant.

Cheaper Recipes: 1–10× Reduces the materials needed for everything — Fabricator items, devices, vehicles, processor outputs, **and** base structure (per-cell material cost). 

Each has its own enable toggle. Recipe ingredients never drop below **1** (never completely free); base-structure costs scale down proportionally.

Covers the whole pipeline

Subnautica 2 actually uses **two** separate systems, and this mod handles both:

- Recipes (`UWECraftingRecipe`) — Fabricator, placed furniture/devices, Vehicle Bay, processors.

- Sculptural base building (`UWESculpturalBaseModuleSettings`) — the walls/rooms/corridors/moonpool you paint with the Habitat Builder, which have their own per-cell material + time cost.

Single-player / host only

Crafting is server-authoritative, so this works in single-player and for the **host** of a co-op session. Joining clients won't see the changes applied on their end.

Requirements

1. **UE4SS for Subnautica 2** — [Nexus](https://www.nexusmods.com/subnautica2/mods/36) / [GitHub](https://github.com/Subnautica2Modding/Subnautica2-UE4SS)

2. **SN2ModSettings** — [Nexus](https://www.nexusmods.com/subnautica2/mods/20) — the in-game slider UI.

Installation

1. Make sure UE4SS is installed (`dwmapi.dll` next to `Subnautica2-Win64-Shipping.exe`, `ue4ss/` folder beside it).

2. Extract this archive so the `SN2ManufacturingTweaks/` folder lands in:

  ```

  <game> Subnautica2 Binaries Win64 ue4ss Mods

  ```

3. Add this line to `ue4ss Mods mods.txt`:

  ```

  SN2ManufacturingTweaks : 1

  ```

  (loads it before SN2ModSettings so it shows in the settings UI; otherwise just restart once).

4. Launch → **Settings → Mods → Manufacturing Tweaks**.

How it works (technical)

Recipe craft time `UWECraftingRecipe.CraftingTime` (float)  ÷ multiplier

Recipe materials `UWECraftingRecipe.Requirements[].NumItems` (int32) ÷ multiplier, floored at 1

Base build time `FUWEBrushTypeSettings.TimePerCell` (float)  ÷ multiplier 

Base materials `FUWESculpturalBaseCellCost.Cost` (float) ÷ multiplier 

Recipes are found with `FindAllOf("UWECraftingRecipe")` (~243 assets). The base-building costs live in a `TMap` of nested structs on the **class-default object** `UWESculpturalBaseModuleSettings`, reached with `StaticFindObject` (since `FindAllOf` skips CDOs) and committed with a struct write-back. Vanilla values are snapshotted once so changing a slider always recomputes from the true baseline and never compounds; a 1 Hz loop catches late-loaded data and reacts to slider changes. Toggling off restores vanilla.

Credits

- **UE4SS** — ported for Subnautica 2 by the [Subnautica2Modding](https://github.com/Subnautica2Modding/Subnautica2-UE4SS) group.

- **SN2ModSettings** by [Just-Chaldea](https://github.com/Just-Chaldea/SN2-ModSettings) — the in-game slider UI.

- ConfigManager pattern adapted from **Capacity & QuickBar Tweaks** by [iTestor](https://www.nexusmods.com/subnautica2/mods/252).

License

MIT — see [LICENSE](./LICENSE).

Changelog

### 1.0.0

- Initial release: Faster Crafting and Cheaper Recipes (1–10× each), covering the Fabricator, processors, vehicles, placed devices, and base-structure building (walls/rooms/corridors/moonpool/foundations). SN2ModSettings sliders with per-aspect toggles.