Blueprint Primer

Exact item requests for one machine, not a whole stack.

Point the primer tool at a furnace or assembler, ghost or built, and ask for exactly the ingredients and fuel its recipe needs instead of a full stack. A stone furnace smelting 25 ore asks for 25 ore and 2 coal, not a stack of each. Construction robots deliver the request; the mod only writes it, the same way vanilla module requests work. Prime a machine directly, or take a primed blueprint and stamp down a whole row of identically-set-up furnaces at once.

Status

This is a ground-up rewrite of the 1.1 version for Factorio 2.0. A 1.1 save that had the old version keeps working when opened in 2.0, but the old whole-blueprint window and its top-bar button are gone. Covered by a headless test suite in base and Space Age, and smoke-tested in the game client. Young, so expect rough edges.

Quick start

Install the mod and start or load a 2.0 game.
Grab the primer tool from the shortcut bar, or hover a furnace or assembler and press ALT + P.
With the tool, click the machine to open the priming window (ALT + P skips this step).
Pick a recipe and drag the output slider to the amount you want; ingredients and fuel scale with it automatically.
Press Request to write it onto that machine, or Blueprint to take a primed copy into your cursor. Then copy-paste it or Shift+click paste its settings to prime the rest.

Features

Priming

Works on one furnace or assembler at a time, ghost or already built
Output slider drives everything: ingredients and fuel scale together, never past what one input slot holds
Recipe picker filtered to what the machine can make; unresearched recipes show red and can still be planned
Fluid ingredients are shown but left out of the request, since bots can't carry them

Fuel and blueprints

Fuel amount is calculated from the recipe, the machine's speed, and the fuel's energy value, not a fixed table
Default fuel: what the machine already burns, else your last pick, else the earliest fuel (coal in vanilla)
Boilers, burner drills, burner inserters and locomotives get a fuel-only window, up to what their fuel slots hold
Primed blueprints copy the machine, recipe, and request into your cursor for stamping down a row
Drag over a row of one kind of machine to prime them all, or blueprint the whole area primed
Copy-paste, blueprints and Shift+click settings paste of a primed machine carry its request
Existing requests for other inventories, like modules, are left untouched

Compatibility

Standalone. No other mod is required, and it adds nothing to the top bar or side flow beyond one shortcut-bar button. Works with or without Space Age and Quality: quality recipes request quality ingredients, and biochambers get nutrients. Requests are written the same way vanilla module requests are, so anything that delivers to those (construction robots from a roboport or a personal roboport) works with it automatically.

Works with

Part of the MTS family. Blueprint Primer is fully standalone and needs nothing else installed, but it sits well beside:

Multi-Team Support gives every team its own copy of the map. Blueprint Primer's state is per player and per force, so every team primes its own machines.
Land Title Registry governs what you may build where. Priming builds nothing, and a primed blueprint obeys land rights like any other blueprint.

Development

Developed with AI coding assistants alongside human review and in-game testing. Issues and pull requests are welcome on GitHub.

License: MIT