Quality parameter

[Arcani_Victus]

TL;DR

Add quality as a selectable blueprint parameter type so blueprints can automatically calculate storage and throughput thresholds based on the quality tier of chests, wagons, and tanks.

What?

Add a quality picker to the blueprint parameter system, allowing players to select a quality tier as a parameter at blueprint placement time. This value could then be referenced in constant combinator parameters to drive arithmetic combinators that calculate correct capacity values automatically.

Currently when placing a train station blueprint that uses combinators to calculate storage and train capacity, the player must manually enter the correct slot or capacity count for every quality tier of every relevant entity every time the blueprint is placed.

With a quality parameter type, the blueprint would instead ask "what quality are your chests?" and "what quality are your wagons?" at placement time and feed those selections directly into the combinator math.

Why?

Blueprint parameters and quality were both introduced in 2.0, but no quality parameter type was included, leaving a gap between the two systems from day one. With 2.1 making quality directly scale the capacity of cargo wagons, fluid wagons, storage tanks, and storage chests, this gap has become more significant. The parameter system was designed to make blueprints intelligent and reusable — adding quality as a parameter type would fulfill that purpose for the quality-aware designs that 2.0 and 2.1 made possible.