BMR - Universal Bunker-C Interchange Purchases

# 🛢️ Universal Bunker‑C Interchange Purchases

Automatically makes Bunker‑C oil purchasable at all compatible interchanges — no route‑specific files required.

This mod adds Bunker‑C as a standard import commodity in Railroader, alongside diesel, coal, and repair parts.

Originally built for Appalachian Railway, but fully compatible with any route using the Railroader/FUSE system.

## ⚙️ Features

- Automatically detects industries with a real `Interchange` component and purchase loader.

- Adds Bunker‑C to Railroader’s standard `LOAD` menu for compatible `TM` tank cars.

- Uses all active interchange tracks at each location.

- Displays the same supplier name as the diesel loader when available.

- Works seamlessly with the vanilla waybill system — no `InternalCars` required.

- Avoids duplicate loaders if another mod already provides Bunker‑C purchasing.

- Updates automatically when route mods add or change interchange tracks.

- Does not modify Railroader or other mod files.

## 💰 Price & Delivery

If no other mod defines a price, Bunker‑C defaults to $0. 12 per gallon:

- 8,000 gal → $960

- 10,000 gal → $1,200

The purchase is charged when the car is sent outbound, and you’ll see

`Ordered ... for $...` in the console.

The car returns full after the usual interchange delay.

A `$0` value on the returning waybill is the freight payment, not the oil cost.

## 🧩 Requirements

- Railroader 2025. 1.x

- Unity Mod Manager 0. 27. 10

- Toolshed 0. 3. 1 or newer

No route mod required.

## 🔄 Compatibility

Works with all standard and modded interchanges following the Railroader/FUSE component model.

Tested on Appalachian Railway and Bryson Central.

Highly customized interchanges without standard components cannot be discovered automatically.

This mod only adds the ability to purchase Bunker‑C — a route or other mod must still provide a facility that uses or unloads it.

## 🚫 Intentional Exclusions

- Ocona‑Lufty/Smokemont (`Oconalufty‑RR‑INT`) is excluded.

- Toolshed interchanges marked for exclusion are respected.

- You can add your own exclusions in `ExcludedInterchanges.txt`:

- One industry ID per line

- Blank lines ignored

- Lines starting with `#` are comments

- Restart Railroader after editing

## ⚡ Performance

Event‑driven injector — no continuous background polling.

Scans only at startup and when FUSE reports relevant changes.

Lightweight and efficient.

## 📦 Installation

Install with Unity Mod Manager

• []Exit Railroader.[/]

  []Download this mod as a zip file.[/]

  []Open Unity Mod Manager, select Railroader, then open the Mods tab.[/]

  []Drag the downloaded zip onto the Mods tab, or use Install Mod and select the zip file.[/]

  []Make sure FUSE, and this Mod are enabled, then start Railroader.[/]

• []Install and enable FUSE and Toolshed. [/]

  []Extract `BMR. Universal. BunkerC. Interchange` into `Railroader/Mods/`. [/]

  []Verify that `Info.json` is directly inside the mod folder. [/]

  []Enable the mod in Unity Mod Manager. [/]

  []Restart Railroader.[/]

  > 🔸 Do not disable the mod while a map with pending interchange cars is open.

  ## 🚂 How to Use

  1. Place an empty, compatible `TM` tank car on an active interchange track.

  2. Open the car’s Operations tab.

  3. Select Buy Bunker C via ... under `LOAD`.

  4. Service the interchange as usual.

  5. The car returns full after the normal delay.

  6. Deliver it to any facility that consumes Bunker‑C.

  This mod was created using codex