Rusting Iron

by thesixthroc and SafTheLamb

Iron plates, gears, sticks and engines spoil by rusting, then need to be derusted.

Derusting can be performed by:
stone (in the early game)
sulfuric acid (for easy derusting of quality iron)
As one more step in bringing Fulgora back to life, scavenged Fulgoran iron is swapped for its rusty variants.

Warning: This mod can be very annoying.

Compatibility:

AAI Industry or Glass: Derusting is performed by sand rather than stone.

With 1.2.0, this mod has a new API for adding new rusting items and new de-rusting recipes.
See prototypes/compat/base.lua for examples (here)
RustingIron.rusting_items[] is the main access point, for specifying a type of item that can rust.
The key is the item that will rust, and the rusted item variant will be the item name appended with "-rusty" e.g. "iron-plate-rusty"
The parameters for a rusting item are: rust_timescale, derust_timescale, derust_amount, derust_costscale, and icon_root.
There are constants in the RustingIron table for standard configurations, but you can specify your own values.
The icon_root path is appended with -rusty.png for the rusted item, and appended with -derust.png for the derusting recipes.
RustingIron.derusting_recipes[] is the other access point, for specifying derusting recipes.
The required parameters are ingredients, localised_name, category, derust_amount, and derust_timescale.
Optional parameters are technology, overlay_icon, and crafting_machine_tint.
Most of these are self-explanatory, and are multiplied with the values from the rusting item when combined for each derusting recipe.
The optional overlay icon is layered above the "-derust.png" icon.
If a technology is specified, the derusting recipes are all locked behind that technology.