Help making a additional snippet

[Tewtiy551]

Making it so only maces with the tag "emace" are enchantable, but other ones without are repairable (with other maces), and can be renamed still.

on craft of mace:
if {emace.crafted} is not set:
set {emace.crafted} to true
set {_n} to nbt from "{custom_data:{emace:1b}}"
set slot 0 of current inventory to mace with nbt {_n}

- my current code so you are able to branch off of it. Thank you

 

[Omanoctoa]

Simple, just listen for enchant or enchant prepare events and check if the event-item contains the NBT. If it does, cancel the event.

To check, this should work...
if %nbt of event-item% contains "{custom_data:{emace:1b}}":

Also, please use CODE tags for your code it makes it easier to read...