minecraft-commandsminecraft-java-edition
The /give and /replaceitem commands are fine if I want to create a new item with a custom attribute, but is there a command to add an attribute to an existing item?
The closest I've gotten to this is adding attributes to an entity representing a dropped item, but the attributes do not carry over to the item once picked up:
/entitydata @e[type=Item,r=1] {AttributeModifiers:[{...}]}
Thanks in advance!
My thought is to use a structure block, to clone the entity.
So this is what I'd do it:
I'll just show how to set up the structure blocks. I'll assume you know what your doing with the teleportation of the entities.
So the cloning device should look like this:
(The command block in the second picture removes the stone block when a red stone block is placed there.)
So the structure block on the left is the saving block, you place the entities to be cloned on top of it.
You must have "Include Entities" set to on, or it won't clone entities.
The block on the right loads the entities. (If you use red stone to save, it will only save to RAM, not your disk, which is good.)
(The structure name doesn't have to be "cloner", but it just has to be the same in both blocks.)
When you have the cloning device set up, you just have to teleport an entity on top of the structure block on the left, place a red stone block in place of the stone one, then one red stone tick later, you'll have two identical entities.
Necro edit: I though I'd clarify why there has to be a red stone tick between them, its because structure blocks are "slow" (compared to command blocks) and require time to save the structure data. A single red stone tick is simply easy to do, but it can be any amount of time, as long as it gives the structure blocks time to do their thing.
To make a mob able to pick up gear:
/entitydata @e[name=ENTITYNAME] {CanPickUpLoot:1b}
If the mob already has something in the slot you want to fill, use /replaceitem to get rid of it:
/replaceitem entity @e[name=ENTITYNAME] slot.armor.head air
Then teleport the item to the mob:
/tp @e[type=Item] @e[name=ENTITYNAME]
You'll probably want to put more arguments into the item selector to only select the item you want.
Best Answer
Yup! What you're doing works just fine, with some minor tweaks.
To apply the attribute modifier to the item, you need to do this instead: