MC-172077Piglins with NoAI shake in the overworld
Piglins summoned without an AI (using NoAI:1b) will still shake in the overworld, even though they will never actually be zombified.
Steps to reproduce
1. Summon a piglin in the overworld using /summon minecraft:piglin ~ ~ ~ {NoAI:1b}
2. Observe the piglin shake is if it is going to be zombified
Video (uploaded to streamable because of file size limit)
https://streamable.com/gvp9o
Environment
Windows 10, Java 8
Created Issue:
Piglins with NoAI shake in the overworld
Piglins summoned without an AI (using NoAI:1b) will still shake in the overworld, even though they will never actually be zombified.
Steps to reproduce
{NoAI:1b}
1. Summon a piglin in the overworld using {{/summon minecraft:piglin ~ ~ ~ }}{{}}
2. Observe the piglin shake is if it is going to be zombifiedVideo (uploaded to streamable because of file size limit)
https://streamable.com/gvp9o
Environment
Windows 10, Java 8
Piglins summoned without an AI (using NoAI:1b) will still shake in the overworld, even though they will never actually be zombified.
Steps to reproduce
{NoAI:1b}
1. Summon a piglin in the overworld using {{/summon minecraft:piglin ~ ~ ~ }}{{}}
2. Observe the piglin shake is if it is going to be zombifiedVideo (uploaded to streamable because of file size limit)
https://streamable.com/gvp9o
Piglins summoned without an AI (using NoAI:1b) will still shake in the overworld, even though they will never actually be zombified.
Steps to reproduce
1. Summon a piglin in the overworld using {{/summon minecraft:piglin ~ ~ ~ {NoAI:1b} }}
2. Observe the piglin shake is if it is going to be zombifiedVideo (uploaded to streamable because of file size limit)
https://streamable.com/gvp9o
Piglins summoned without an AI (using NoAI:1b) will still shake in the overworld, even though they will never actually be zombified.
Steps to reproduce
1. Summon a piglin in the overworld using {{/summon minecraft:piglin ~ ~ ~ {NoAI:1b} }}
2. Observe the piglin shake is if it is going to be zombifiedVideo (uploaded to streamable because of file size limit)
https://streamable.com/gvp9o
Piglins summoned without an AI (using NoAI:1b) will still shake in the overworld, even though they will never actually be zombified.
Steps to reproduce
{NoAI:1b}
1. Summon a piglin in the overworld using {{/summon minecraft:piglin ~ ~ ~}}
2. Observe the piglin shake is if it is going to be zombifiedVideo (uploaded to streamable because of file size limit)
https://streamable.com/gvp9o
Piglins summoned without an AI (using NoAI:1b) will still shake in the overworld, even though they will never actually be zombified.
Steps to reproduce
{NoAI:1b}
1. Summon a piglin in the overworld using {{/summon minecraft:piglin ~ ~ ~}
}
2. Observe the piglin shake is if it is going to be zombifiedVideo (uploaded to streamable because of file size limit)
https://streamable.com/gvp9o
Piglins summoned without an AI (using NoAI:1b) will still shake in the overworld, even though they will never actually be zombified.
Steps to reproduce
1. Summon a piglin in the overworld using /summon minecraft:piglin ~ ~ ~ {NoAI:1b}
2. Observe the piglin shake is if it is going to be zombifiedVideo (uploaded to streamable because of file size limit)
https://streamable.com/gvp9o
![[Mod] violine1101](../../../data/avatars/users/92858.png){kind=small}
relates to
![[Helper] Misode](../../../data/avatars/users/93314.png){kind=small}
![[Mojang] Adrian Östergård](../../../data/assets/gravatar/nighter.jpeg){kind=small}
Low
is duplicated by
![[Mojang] Searge (Michael Stoyke)](../../../data/assets/gravatar/searge.png){kind=small}
[Mojang] Searge (Michael Stoyke)![[Bot] Piston](../../../data/avatars/users/31202.png){kind=small}
![[Mod] bemoty](../../../data/avatars/users/50554.png){kind=small}
relates to
The bug
When a mob transforms into another mob (ex. zombie villager → villager, mooshroom → cow), it loses most of its NBT tags. This also affects conversions to the same mob, like slimes and magma cubes splitting.
It is worth noting CustomName and NoAI are preserved (MC-6773 & MC-67437), so other tags are expected to be saved as well.
Examples
The following is a list of tags that aren't transferred between entities.
| From | Husk | Zombie | Skeleton | Zombie Villager | Villager | Villager | Pig | Piglin | Piglin Brute | Hoglin | Slime | Magma Cube | Tadpole | Mooshroom |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| To | Zombie | Drowned | Stray | Villager | Zombie Villager | Witch | Zombified Piglin | Zombified Piglin | Zombified Piglin | Zoglin | Smaller Slime | Smaller Magame Cube | Frog | Cow |
| AbsorptionAmount |  |
|
|
|
|
|
|
|
|
|
|
|
|
|
| active_effects | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Age, IsBaby |  |
|
N/A | 7 |
7 |
N/A | |
|
N/A | |
N/A | N/A | N/A | |
| AngrTime, Brain.memories.minecraft:angry_at.ttl | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
|
N/A | N/A | N/A | N/A | N/A |
| AngryAt, Brain.memories.minecraft:angry_at.value | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
|
N/A | N/A | N/A | N/A | N/A |
| ArmorItems | |
|
|
8 |
8 |
8 |
8 |
|
|
|
N/A19 | N/A19 | 8 |
8 |
| ArmorDropChances | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Attributes | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| CanBreakDoors | |
|
N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| CanPickUpLoot | |
|
|
 9 |
|
|
|
|
|
|
|
|
|
|
| CustomName | |
|
|
|
|
|
|
|
|
|
20 |
20 |
|
|
| CustomNameVisible | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| DeathLootTable | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| DeathLootTableSeed | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| FallFlying | |
|
|
8 |
8 |
8 |
8 |
|
|
|
N/A19 | N/A19 | 8 |
8 |
| Fire | |
|
N/A5 | |
|
|
N/A15 | N/A15 | N/A15 | N/A15 | |
N/A23 | |
|
| ForcedAge | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
| Gossips | N/A | N/A | N/A | |
|
N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| HandItems | |
|
|
8 |
8 |
8 |
8 |
|
|
|
N/A19 | N/A19 | 8 |
8 |
| HandDropChances | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Health | |
|
|
|
N/A10 | |
|
|
|
|
N/A21 | N/A21 | |
|
| HurtByTimestamp | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| HurtTime | |
|
|
|
|
|
|
|
|
|
|
|
|
) |
| Invulnerable | |
|
|
|
N/A10 | |
|
|
|
|
|
|
|
|
| Leash | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| LeftHanded | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Motion | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| NoAI | N/A4 | N/A4 | N/A6 | |
11 |
13 |
13 |
N/A17 | N/A17 | N/A18 | |
|
|
|
| NoGravity | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Offers | N/A | N/A | N/A | |
|
N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| OnGround | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Passengers1 | |
|
|
|
|
|
|
|
|
|
N/A | N/A | |
|
| PersistenceRequired | |
|
|
|
|
14 |
16 |
|
|
|
|
|
16 |
|
| PortalCooldown | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| RootVehicle2 | |
|
|
|
12 |
|
|
|
|
|
|
|
|
|
| Rotation3 | |
|
|
|
|
|
|
|
|
|
22 |
22 |
|
|
| SleepingX, SleepingY, SleepingZ | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Silent | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| Tags | |
|
|
|
|
|
|
|
|
|
|
|
|
|
| UUID | |
|
|
|
|
|
|
|
|
|
23 |
23 |
|
|
| VillagerData | N/A | N/A | N/A | |
|
N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| Xp | N/A | N/A | N/A | |
|
N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A |
| wasOnGround | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | |
|
N/A | N/A |
1 See MC-193083.
2 Not an actual tag saved on mobs, but it's the corresponding tag name on player data: the vehicle this entity rides, see also MC-193083.
3 Desynced, see MC-248587.
4 Cannot be converted (even when setting DrownedConversionTime with commands), see MC-148935, consider to only not trigger/count down the timer if NoAI is present, and allow value 0 to convert.
5 Skeletons MUST be in powdered snow to convert, even via commands. Powdered snow extinguishes burning mobs.
6 Cannot be converted (even when setting StrayConversionTime with commands), consider to only not trigger/count down the timer if NoAI is present, and allow value 0 to convert.
7 Since zombie villagers use IsBaby instead of Age, the time until growing up/being able to breed again is lost. Age gets set to 0 for adults and -24000 for babies upon converting to villagers.
8 The equipment is not dropped, nor brought over to the new form.
9 Always 1b, MC-73178.
10 Mob needs to die to convert, cannot be converted by creative players.
11 MC-183860, fixed.
12 MC-163767,fixed
13 MC-67437, fixed.
14 Always 1b, MC-239883, this could be resolved by making all villagers that spawned naturally be persistent instead and copying the value over.
15 Converted-to mob cannot burn, if this behavior will ever be toggle-able (for example via entity type tag), this should be synchronized though.
16 Always 1b.
17 Cannot be converted (even when setting TimeInOverworld with commands), see MC-172077, consider to only not trigger/count down the timer if NoAI is present, and allow value 0 to convert.
18 Cannot be converted (even when setting TimeInOverworld with commands), consider to only not trigger/count down the timer if NoAI is present, and allow value 0 to convert.
19 Loot is dropped due to mob death.
20 MC-6773, fixed.
21 Mob needs to die to convert, can be converted by creative players.
22 Desynced, and randomized, see MC-248587.
23 Mob splits into multiple mobs, so UUID cannot be preserved for all. However, 1 of the mob should be capable to get it.
24 Magma cubes can't burn, if this behavior will ever be toggle-able (for example via entity type tag), this should be synchronized though.
Since zombie villagers can be converted to villagers and vise versa, the following data is problematic due to not being stored on one of the 2 parties, causing loss of data upon converting and converting back to the original form. This should probably be it's own report, but until the rest of this is fixed, it's just another "tags lost on conversion" entry.
- Zombie villagers don't have ForcedAge, InLove, Inventory, LastGossipDecay, LastRestock, LoveCause, RestocksToday and Willing.
- Zombie villagers don't use Brain.memories.minecraft:home, Brain.memories.minecraft:job_site, Brain.memories.minecraft:last_woken, Brain.memories.minecraft:last_worked_at_poi, Brain.memories.minecraft:meeting_point and Brain.memories.minecraft:potential_job_site.
- Villagers don't have CanBreakDoors.
How to reproduce
- Summon a mob with any of the above tags, and convert it.
/summon minecraft:zombie_villager ~ ~ ~ {Health:10.0f,Invulnerable:1b,Fire:100s,Tags:["foo","bar"],ConversionTime:0}
- Once the mob converted, look at its NBT data
/data get entity @e[type=villager,limit=1,sort=nearest]
→
Note that the tags marked with do not persist
Bug
When a zombie is spawned underwater without AI, it still turns into a drowned after a short amount of time. (This also similarly effects husks)
This is inconsistent with Piglins which do not convert to Zombified Piglins when they have NoAI:1b, see also MC-172077.
The zombie conversion should therefore be implemented in a similar way.
Expected Result
I expected the zombie to not turn into a drowned because it is supposed to not have any AI.
Actual Result
The zombie turned into a drowned as if it had AI.
Steps to Reproduce
- Go below water with cheats enabled
- Run the command
/summon minecraft:zombie ~.5 ~ ~.5 {NoAI:1b}or
/summon minecraft:husk ~.5 ~ ~.5 {NoAI:1b} Watch the zombie convert into a drowned/husk convert into a zombie
WAI as per
MC-148935The thing I noticed is the piglins do not actually convert into their zombified form, so should I make a report for that?
MC-148935has now been reopened since it was resolved back then by a moderator (and not a Mojang employee) and due to the inconsistency you described it would make sense to get an official confirmation.