/**
* Construct a wrapper for an NBT tag stored (in memory) in an item stack. This is where auxillary
* data such as enchanting, name and lore is stored. It doesn't include the items material, damage
* value or count.
*
* <p>The item stack must be a wrapper for a CraftItemStack. Use {@link
* MinecraftReflection#getCraftItemStack(ItemStack)} if not.
*
* @param stack - the item stack.
* @return A wrapper for its NBT tag.
*/
public static NbtWrapper<?> fromItemTag(ItemStack stack) {
checkItemStack(stack);
StructureModifier<NbtBase<?>> modifier = getStackModifier(stack);
NbtBase<?> result = modifier.read(0);
// Create the tag if it doesn't exist
if (result == null) {
result = NbtFactory.ofCompound("tag");
modifier.write(0, result);
}
return fromBase(result);
}
/**
* Set the NBT compound tag of a given item stack.
*
* <p>The item stack must be a wrapper for a CraftItemStack. Use {@link
* MinecraftReflection#getCraftItemStack(ItemStack)} if not.
*
* @param stack - the item stack, cannot be air.
* @param compound - the new NBT compound, or NULL to remove it.
* @throws IllegalArgumentException If the stack is not a CraftItemStack, or it represents air.
*/
public static void setItemTag(ItemStack stack, NbtCompound compound) {
checkItemStack(stack);
StructureModifier<NbtBase<?>> modifier = getStackModifier(stack);
modifier.write(0, compound);
}