Minecraft – Copy player’s armor and offhand items into a chest

minecraft-commandsminecraft-java-edition

I have tried to copy all items from a player's inventory into a chest in 1.16.
I have used this command for the hot bar and the 2 first rows in the inventory:

/data modify block 227 76 77 Items set from entity @a[tag=inbuild,limit=1] Inventory

For the 3rd row I have used these commands:

/summon minecraft:item ~ 69.00 85.46 {Item:{id:"minecraft:stone",Count:1b},Age:5990s}

execute store success score itemdetect CopyInv run data modify entity @e[y=69.00,z=85.46,distance=0..1,type=item,limit=1,sort=nearest] Item set from entity @a[tag=inbuild,limit=1] Inventory[{Slot:35b}]

execute if score itemdetect CopyInv matches 1 run data modify block 227 76 79 Items[{Slot:8b}] merge from entity @e[y=69.00,z=85.46,distance=0..1,type=item,limit=1,sort=nearest] Item

It works, but now I need to do the same with the armor slots and the second hand but i cant get it to work 🙁 Do I need to do something else to get the armor and the second hand to work, or am I just using the wrong slot IDs? For the armor i use these ids: 100, 101, 102 and 103, and for the second hand i use this -106. I can have missed something else when I did it, but I have done it 3 times and I never got it to work!

I'm playing in 1.16 (pre-release 5)

Best Answer

The reason why this happens is that the Slot tag also gets copied, so the item gets copied into the chest and moved to slot 100, -106, etc., which makes it disappear again immediately.

Since there's nothing else with that many slots and you can't directly modify player data, you'll have to either copy id, Count and tag independently or go through something that doesn't care about the Slot tag, which can for example be an item entity (which automatically removes it, but that would place the item at slot #0 when copying it into the chest) or an arbitrary-NBT place like storage, where you can edit the slot number yourself.

The first method:

/data modify block ~ ~ ~ Items[{Slot:8b}] merge value {id:"stone",Count:1}
/data modify block ~ ~ ~ Items[{Slot:8b}].id set from entity @s Inventory[{Slot:-106b}].id
/data modify block ~ ~ ~ Items[{Slot:8b}].Count set from entity @s Inventory[{Slot:-106b}].Count
/data modify block ~ ~ ~ Items[{Slot:8b}].tag set from entity @s Inventory[{Slot:-106b}].tag

The second method:

/data modify storage fabian:copy_help temp set from entity @s Inventory[{Slot:-106b}]
/data modify storage fabian:copy_help temp.Slot set value 8
/data modify block ~ ~ ~ Items append from storage fabian:copy_help temp

The parameter "append" puts the new entry at the end of the list, it can even become a 28th entry, but the list actually gets automatically reordered to be in the expected order and any item that was in that slot previously gets overwritten.

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Minecraft – /entitydata command + armor stands . How to do it properly

I figured it out. I was suspicious of this and only logical. You have to include the entire Pose: tag. My command ended up like this

/entitydata @e[name=TS-19] {Pose:{Body:[4f,0f,0f],Head:[4f,0f,0f],LeftLeg:[7f,0f,0f],RightLeg:[2f,0f,0f],LeftArm:[2f,0f,0f],RightArm:[100f,0f,0f]}}

Minecraft – How to subtract an item from a stack in offhand slot and then add the remainder back to the inventory

Here's a bit of a wacky workaround that I think does what you want.

To start, there's no way to guarantee you'll be removing one item from a player's main-hand / off-hand slot if they might have the same item in other parts of their inventory.

Solution? Make them not the same item.

Whenever a player puts dragon breath bottles in their hotbar, clear them and replace them with dragon's breath bottles with a custom nbt tag specific to that hotbar slot (there may be some scoreboard math involved in this). This should only happen once as a setup step when they "equip" the dragon's breath to their hotbar. You'll get that annoying "redrop" thing once initially from the clear and regive, but not during active gameplay. This means the dragon's breath bottles in the player's hotbar are different than the ones in the rest of their inventory.

Now, whenever you detect that a dragon's breath with a custom tag (hotbarSlotNumber:X) is in their offhand slot (when a player puts it there), you can clear the player of 1 dragon breath bottle (with custom tag hotbarSlotNumber:X). That will remove one dragon breath bottle from their offhand. We need to specify the hotbar slot so that we don't clear any dragon breath bottles that might be in other locations in the hotbar.

You can simplify a lot of this by adding the restriction that the dragon's breath can only be in a specific hotbar slot, or the hotbar will have a maximum of one stack dragon's breath bottles. That way you don't need to keep track of nine tags.

You say in comments that you want the items to bounce back into the player's mainhand slot afterwards, which doesn't really make sense to me because at that point you'll have to do the "redrop" thing every time anyway.

All this said, using a retextured carrot on a stick would probably be much easier. You could use the xp bar or the title command with a score to represent how many usages of the item you have left.

Best Answer

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Minecraft – /entitydata command + armor stands . How to do it properly

Minecraft – How to subtract an item from a stack in offhand slot and then add the remainder back to the inventory

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