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Dragon Movement Fix

Dragon Movement Fix

by AndrewGaming587 • Downloads: 0 • Followers: 0
Description
Gallery
Changelog
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Dragon Movement Fix

About

Dragon Movement Fix is a Minecraft datapack to fix MC-272431, a bug introduced in 1.14 snapshot 19w08b where a typo in the Ender Dragon's vertical movement code causes erratic behavior from the Ender Dragon, such as slowly gliding down to perch instead of diving to the central bedrock podium. This works on literally every version of the game that has this bug, including the snapshot the bug first appeared in, due to the pack's simplistic implementation.

If you've ever fought the dragon in an older version like 1.12 or 1.13, you might know what I'm talking about.

Patches out one-cycling and other strategies that rely on MC-272431.

Questions/Issues? Post them in my discord as they are more likely to get seen there. Find it on the sidebar.

Dependencies

  • Fabric API (Fabric/Quilt mod only)
  • A newer version of Minecraft (Forge Mod version only, specific required version unknown)

To Modpack Creators:

I permit the use of this datapack/mod in your modpacks. You can include it in modpacks without the need to ask me about it. However, notifying me if it is being included in your modpack would be nice.

To Developers

You may depend on, make mods (somehow) for, and help contribute to this project. However, if you wish to publish this project elsewhere/post a fork of this project, I would like if you asked me for permission beforehand. Note: contributions that would cause me to drop support for one or more game versions will not get accepted.

To Content Creators/Streamers

I am completely fine with, and even encourage, creating of content with this project. If you do, it would be very appreciated if you would please credit this project and link to this page if you use this in your content/stream.

Notes

  • This datapack isn't perfect, and has some issues related to the dragon's vertical velocity, most of which aren't fixable without heavily altering the pack and causing it to drop support for older versions of Minecraft (there's already Customizable Dragon AI that has a lot of the issues fixed, along with a bunch more features, but only supporting 1.20.3 and newer), for example explosions will cause the dragon to launch 10x as high as it would normally, for one tick only, before going back to a normal-ish amount of knockback.

Trivia

Some fun facts about this project!

  • Funny thing, I probably won't ever have to make a change to how the pack works in order to support a version because it doesn't use any commands that Mojang are going to change in a way that breaks the pack in the forseeable future. The only reason this pack would need to be updated is to fix a bug or add something.
    • Which means v1.1.5 is likely the last version of this pack until Mojang does something somehow to break this pack which is likely going to be never.
  • This project was created AFTER my other similar project, Customizable Dragon AI, despite this being uploaded BEFORE it.

All Versions

+ Add Version
Name Game version Platforms Published Downloads Actions
26.1.x 19w08b 1.21.x +7
Fabric Forge Neoforge Quilt
14h ago 1
26.1.x 19w08b 1.21.x +7
Datapack
14h ago 1
25w21a 25w20a 25w19a +24
Fabric Forge Neoforge Quilt
14h ago 1
25w21a 25w20a 25w19a +26
Datapack
14h ago 1
25w06a 25w05a 25w04a +10
Fabric Forge Neoforge Quilt
14h ago 1
25w06a 25w05a 25w04a +10
Datapack
14h ago 1
25w03a 25w02a 1.21.x +7
Fabric Forge Neoforge Quilt
14h ago 1
25w03a 25w02a 1.21.x +7
Datapack
14h ago 1
1.21.x 1.20.x 1.19.x +5
Fabric Forge Neoforge Quilt
14h ago 1
1.21.x 1.20.x 1.19.x +5
Datapack
14h ago 1
1.21.x 1.20.x 1.19.x +5
Fabric Forge Neoforge Quilt
14h ago 1
1.21.x 1.20.x 1.19.x +5
Datapack
14h ago 1
19w08b 1.21.x 1.20.x +6
Fabric Forge Neoforge Quilt
14h ago 1
19w08b 1.21.x 1.20.x +6
Datapack
14h ago 1
19w08b 1.21.x 1.20.x +6
Fabric Forge Neoforge Quilt
14h ago 1
19w08b 1.21.x 1.20.x +6
Datapack
14h ago 1
[1.1.6+mod] v1.1.6 by AndrewGaming587 on Oct 16, 2026
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first update in a loooooong time.

Additions: a way to disable the load message (/function dragonfix:silence)
[1.1.6] v1.1.6 by AndrewGaming587 on Oct 16, 2026
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first update in a loooooong time.

Additions: a way to disable the load message (/function dragonfix:silence)
[1.1.5+mod] v1.1.5 by AndrewGaming587 on Oct 16, 2026
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Pack should be working on 1.20 and earlier now; the functions folder was missing; only function existed, meaning the pack would only work in 1.21+
[1.1.5] v1.1.5 by AndrewGaming587 on Oct 16, 2026
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Pack should be working on 1.20 and earlier now; the functions folder was missing; only function existed, meaning the pack would only work in 1.21+
[1.1.4+mod] Dragon Movement Fix v1.1.4 by AndrewGaming587 on Oct 16, 2026
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  • Fix a bug where knockback taken from explosions launches the dragon 10x higher than normal.
  • This was intended to be fixed last update, but the patch didn't do anything.
  • Because of this bug, one-cycling the dragon was possible. With this fix, it should be almost impossible.
[1.1.4] Dragon Movement Fix v1.1.4 by AndrewGaming587 on Oct 16, 2026
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  • Fix a bug where knockback taken from explosions launches the dragon 10x higher than normal.
  • This was intended to be fixed last update, but the patch didn't do anything.
  • Because of this bug, one-cycling the dragon was possible. With this fix, it should be almost impossible.
[1.1.3+mod] Dragon Movement Fix v1.1.3 by AndrewGaming587 on Oct 16, 2026
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Fix a bug where the dragon can get launched a bajillion blocks in the air by explosions. (Not really fixed, just reduced the effects)
[1.1.3] Dragon Movement Fix v1.1.3 by AndrewGaming587 on Oct 16, 2026
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Fix a bug where the dragon can get launched a bajillion blocks in the air by explosions. (Not really fixed, just reduced the effects)
  • IMPORTANT RELEASE**

fixed a bug where the dragon moves while perched
[1.1.2] Dragon Movement Fix v1.1.2 by AndrewGaming587 on Oct 16, 2026
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  • IMPORTANT RELEASE**

fixed a bug where the dragon moves while perched
(Mod version)

  • IMPORTANT RELEASE**

Fixed a bug where the datapack just didn't work at all.
  • IMPORTANT RELEASE**

Fixed a bug where the datapack just didn't work at all.
(Mod Version)

(Changelog copied from Github)
# Simpler Method Update
Update to make the pack use a simpler method for calculating velocity because turns out I used the wrong command when researching for making this pack
### Changes:
  • The pack uses a simpler method to calculate the dragon's velocity
  • The pack now uses the Ender Dragon's Motion NBT tag instead of calculating position differences. This fixes an unnoticed bug where the dragon jumps to the incorrect y position when teleporting the dragon due to it being treated as movement due to velocity by the datapack.
(Changelog copied from Github)
# Simpler Method Update
Update to make the pack use a simpler method for calculating velocity because turns out I used the wrong command when researching for making this pack
### Changes:
  • The pack uses a simpler method to calculate the dragon's velocity
  • The pack now uses the Ender Dragon's Motion NBT tag instead of calculating position differences. This fixes an unnoticed bug where the dragon jumps to the incorrect y position when teleporting the dragon due to it being treated as movement due to velocity by the datapack.
First Release; supports every version of Minecraft that has the broken Dragon AI. (19w08b-1.21.4+)

Mod version; thanks Modrinth for having the datapack packaging feature!
[1.0.0] Dragon Movement Fix v1.0.0 by AndrewGaming587 on Oct 16, 2026
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First Release; supports every version of Minecraft that has the broken Dragon AI. (19w08b-1.21.4+)
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