fix: resources not being used up correctly when there are missing items #757
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We always have to add the resulting output
resources to the internal storage, even if there
are missing resources.
If we would not do this, then, in the case of
missing resources, it would re-calculate
the same ingredient from scratch everytime and
use way too much resources.
However, if we always add resulting resources,
even if there are missing items, we must still
use up the yields from the recursive calculation.
Otherwise, if we would not use up the yields
from the recursive calculation, the crafting
calculation would incorrectly use up resources
from the internal storage for other ingredients.
What is the difference between not adding the yields in case of missing resources and using up the recursive yields when there were missing resources?
The difference lies in the fact that, when we do not add any yields, the crafting calculation would start from scratch everytime for each ingredient.
Only using up what we needed in the first place from the recursive yield ensures that any leftover yields can still be used up by other ingredients that happen to need the same resource.
So, the difference lies in not having any yields at all versus still allowing access to the leftovers.