Testing to see if a player is holding no item in hand
I am trying to test to see if a player is holding nothing in their hand, so when you activate a sign (Wall Weapon, in my case) They are given a gun as long as they aren't holding anything. I have looked online for a while, and I really don't know how to Do this myself. If you know how to clear ONLY the item the player is holding, that is just as helpful. Thanks!
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[1.17] How to Detect If a Player Is Holding a Named Item
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