add
fun addPersistentDataIf(key: NamespacedKey, value: String, condition: Boolean = false): ItemBuilder(source)
Adds persistent data to the item if the specified condition is true.
Return
the ItemBuilder instance
Parameters
key
the namespaced key of the data
value
the value of the data as a string
condition
the condition that must be met to add the data (default: false)