What?
Currently you can add a "catalyst_amount" parameter to ingredients or results of a recipe.Added on an result, this has two functions:
- It stops the product from appearing in production stats.
- It prevents it from being affected by productivity.
In addition, "catalyst_amount" acts on stats in strange ways when the amount products is variable (either via probability or with amount_min/amount_max).
For example if a recipe has 50% chance to output stone, and that product has catalyst_amount = 1 (has to be an int), then when the recipe outputs stone it works as expected (stone does not appear in stats) but when the recipe does not output stone then 1 stone appears in consumption stats. I'm guessing the catalyst amount is subtracted from the actual amount produced, which results in -1 production, which ends up as 1 consumption.
The "ignored_by_stats" boolean proposed would allow variable results to be properly ignored in stats.
Why?
In SE, we have a lot of recipes that output stone or sand as byproduct, which is usually something players want to get rid of. We currently mark those as catalyst because we want to encourage high productivity, and we don't want players to be punished for it by getting more waste. This makes sense thematically too since a more productive machine could get more usable ore and less waste.But the byproducts end up not showing up in production stats even though it is produced. Sometimes it may even show in consumption stat because of the issue with variable products mentioned above.
Ideally, we would prevent productivity on this product, while still having it show in statistics.
Thanks!
