Goes through every zone and checks if this has the relevant product in it (in this case Green X corresponds to Wood)
This is set to run every tick, but for Ores I recommend setting it to ~30

Originally shared on the public FactorioPrints / Factorio School archive (factorioprints.com · factorio.school). Authorship preserved from the public catalog.
Goes through every zone and checks if this has the relevant product in it (in this case Green X corresponds to Wood)
This is set to run every tick, but for Ores I recommend setting it to ~30