Improved Tool selection
from pRegroup2020
Improved Tool selection
I'm doing the "setState after reading Tool#activate in Paper.js" and it's a bug where I forgot to setState.
To begin with, "Tool#activate is called by setState→useEffect" is correct.
I don't remember where it was written, but the idea is "single source of truth".
React should have been the single source and the Paper.js side should have been subordinate and updated when editing there.
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