Minecraft – How to change what a zombie is holding

minecraft-commandsminecraft-java-editionminecraft-java-edition-server

Problem

I am setting up a disguising system on Minecraft meant for a server that my friends and I are recording on. What I have right now is this:

tp @e[type=Zombie,name=Rocket] jackmaster110

The idea is that these stay in a repeating command block and the mob seems to be you. The problem is that the items you hold still appear and the mob doesn't hold it. I though, "No problem, I can just use some testfor commands." I set up commands to check which hotbar slot the player is on, and since the series is a roleplay, the hotbar will be preset. Anyway, after setting this up, I realized I had no idea how to make the mob switch items. I did some digging online and found nothing useful. The testfor command is here if you're wondering:

testfor jackmaster110 {SelectedItemSlot:0}

I am aware there is a plugin for this, but it isn't compatible with the replay mod which is what I'm using to record most of the shots.

Background

The series is a Guardians of the Galaxy 1.5 roleplay and we need a Baby Groot (retextured baby zombie pigman), a Rocket (retextured baby zombie), and a Drax (retextured iron golem). That's why we need the disguising.

Other Help

If this isn't possible, does anyone know a disguise plugin that will work with the mod, want to be our camera, or know of a different mod that can work with iDisguise. The last thing I wanted to ask is if anyone knows a way to stop the weird head movement the mob has.

Best Answer

This will probably work:

/replaceitem entity <selector> <slot> <item> [amount]
(entity is not a placeholder)

In the above command:
<selector> must be a player name or entity selector.
<slot> is the inventory slot where the item must be placed (see below).
<item> is the item ID (e.g. minecraft:golden_sword).
[amount] is the how many of the items to stack (must be between 0 and 65, but is optional).

Slots for mobs include:

slot.armor.chest
slot.armor.feet
slot.armor.head
slot.armor.legs
slot.weapon.mainhand
slot.weapon.offhand

Remember, not all mobs will show or make use of the added item. A spider might have a sword, but what is it supposed to do with it?

Oh, and how are you supposed to know which zombie/Rocket you want to mess with? Selectors in Minecraft are a bother, but they work. You'll probably have to give it a custom attribute, such as a name. Give a Summoned mob a name like so:

/summon Zombie x y z {CustomName:"Rocket",IsBaby:1b}
(I don't think you can use spaces for the selecting in the replaceitem command, so best just to use one word names for now. Even underscores can work.)

Now, to give it a sapling!

/replaceitem entity @e[name="Rocket"] slot.weapon.mainhand minecraft:sapling 4 1

There are more things you can do with this command, but I think that this is all you need for what you want to accomplish. I got this information from the Minecraft Gamepedia site for commands, and the more complicated stuff can also be found there.

Related Solutions

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Figured it out. The data is in the level.dat file. Assuming you're using Python, here's a code snippet that should get the current time (run "sudo pip install nbt" first):

import nbt
def get_time():
    n = nbt.NBTFile('%s/%s/level.dat' % (minecraft_dir, session_name))
    if n == None:
        return None
    else:
        return n[0]["Time"].value % 24000

For bonus points, you can change the modulo to a division sign and get how many days it has been since you started.

Minecraft – Errors in this Minecraft Disease code

If that's actually the command you're using, there needs to be a space between the set and @e.

I'm not sure what your intending with the c argument. It shouldn't matter for the most part, but it seems useless and will only cause potential problems.

Make sure that the conditions are actually matched. Are the entities within 3 blocks? Is their "Death" score 0 (and not Null, which it starts as if not set to anything)?

The error message you are getting will happen even if the command is working as expected. After it sets the death score of nearby entities to 1, the command will fail because @e[score_Death=0,r=3,c=100] no longer targets anything. So make sure that it's this command that's actually the issue and not something else in your mechanism; this command could be working fine.