Hello there!

Making a modpack and I would really like to let people dual-wield, but some weapons kind of don't make sense when it comes to size, and when you try to fire bows the off-hand also lands a hit at the same time. (Which feels kind of weird)

Is it possible to create a whitelist for items that are only usable when the other hand is empty?

Would be more efficient just tell if the item in the mainhand even has a melee damage.

Example:

sword in the offhand - bow in the mainhand > left click will attack with the offhand
axe in the offhand - a block in the mainhand > left click will attack with the offhand
bow in the mainhand - bow in the mainhand > does what you expect on vanilla mc
bow in the mainhand - shield in the mainhand > does what you expect on vanilla mc
sword in the mainhand - shield in the mainhand > left click will attack with the offhand