The bug
If the exit portal is removed and the ender dragon tries to perch, it will fly to y=0. Doesn't matter if it's a hole or not, it will go through blocks tho.
How to reproduce
Enter the end.
/execute in minecraft:the_end run tp @s 0 100 0Remove the exit portal (make sure the enderdragon is alive).
Stand on top of the exit portal and run: /fill ~-10 ~ ~10 ~10 ~-60 ~-10 air→ ❌ The ender dragon flies to y=0, if it wants to perch.
Code analysis
Code analysis by @unknown can be found in this comment.
Linked issues
relates to 2
Attachments
Comments 32
You can't break bedrock in survival, the dragon fight is geared towards survival.
It is still a glitch. While the fight is meant for survival, this still happens and should be fixed
Alright, reopened for Mojang to look at.
There is a ticket where the ender dragon flies high up when the exit portal is extended on top, but cannot find it.
Confirmed for 15w42a
Confirmed for 15w43a
Confirmed for 15w44a
Confirmed for 15w46a
The enviroment is supposed to contain pc details
Confirmed for 16w14a
Confirmed for 1.9.3-pre3
Confirmed for 18w02a.
[media]
Can confirm in 20w49a.
Can confirm in 20w51a.
Can confirm in 21w03a. If you don't want to wait for the ender dragon to fly down, feel free to use the following command:
/data merge entity @e[type=minecraft:ender_dragon,limit=1] {DragonPhase:3}Can confirm in 21w05b.
Can confirm in 21w06a.
This is due to the end portal feature at net.minecraft.world.gen.feature.EndPortalFeature (yarn mappings 21w05b) defaulting its position to the origin (0,0,0) if no portal is found. The ender dragon landing phase reads from this to find its position.
public class EndPortalFeature extends Feature<DefaultFeatureConfig> {
public static final BlockPos ORIGIN = BlockPos.ORIGIN;
...
}From the dragon's landing phase:
public void serverTick() {
if (this.target == null) {
this.target = Vec3d.ofBottomCenter(this.dragon.world.getTopPosition(Heightmap.Type.MOTION_BLOCKING_NO_LEAVES, EndPortalFeature.ORIGIN));
}
...
}Can confirm in 21w07a.
Affects 21w11a
Can someone add a code to let the mobs go to different place ,to protect the players who saw the ender dragon fly into void.
like{ /mob -ender dragon -X-Y-Z to world(ender)
May the portal gets unbreakable?
Affects 1.17 Pre-release 1
Affects 1.17
I'd like to request ownership of this ticket since the current reporter has been inactive for over a year. I'm willing to keep this ticket updated and will continue to provide all of the necessary details.
Can confirm in 1.18.2.
Affects 22w13a
Relates to MC-201937, is a remnant of the ender dragon AI being broken in 19w08b effecting its decending behavior and its dragon phases.
@unknown This issue predates 19w08b, so it is very unlikely that they are related.
Can confirm in 1.19.
Hi, I reported this issue about 7 years ago when I was 10. You can see my account at the bottom of the history. I get emails every time it's updated! I don't even play minecraft anymore. Just wanted to say good job to all of the contributors that work on this game STILL to this day. Its amazing.
The blue shield is a glitch it did not get removed from my inventory
i am in the affected version
just in case you dont know